CN104345130A - Monitoring system for underground water around chemical plant - Google Patents
Monitoring system for underground water around chemical plant Download PDFInfo
- Publication number
- CN104345130A CN104345130A CN201410428415.9A CN201410428415A CN104345130A CN 104345130 A CN104345130 A CN 104345130A CN 201410428415 A CN201410428415 A CN 201410428415A CN 104345130 A CN104345130 A CN 104345130A
- Authority
- CN
- China
- Prior art keywords
- chemical plant
- unit
- data processing
- processing unit
- monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000000126 substance Substances 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 39
- 238000004891 communication Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000003673 groundwater Substances 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a monitoring system for underground water around a chemical plant. The monitoring system comprises a plurality of detection wells, a plurality of collection units, a multi-path data receiving unit, an analog-digital conversion unit, a data processing unit, a wireless communication unit and a monitoring center. The system has the advantages of precise measurement, multi-aspect data measurement, remote real-time monitoring and the like.
Description
Technical Field
The invention relates to a monitoring system, in particular to a monitoring system for underground water around a chemical plant.
Background
Water is an important component of human living environment and is an essential important resource for life and production, the water reserves in China are in the forefront of the world, but with the rapid development of industrial economy, various natural resources are abused, and environmental pollution is more severe, such as: the underground water is used as a main source of industrial, agricultural, aquaculture and domestic water, the underground water is excessively exploited in the areas to cause stratum subsidence, seawater infiltration is caused in some coastal areas to cause underground water formation, or a large amount of sewage discharged in production and life contains a plurality of harmful factors, and after the sewage is immersed in the ground, the pollution to the underground water is immeasurable and seriously harms the health of human beings. The wastewater which is most seriously polluted and the slowest in natural recovery is chemical industrial wastewater, and when the industrial wastewater directly flows into channels, rivers and lakes to pollute surface water, if the toxicity is high, aquatic animals and plants die and even die; the water also can permeate into the ground water to pollute the ground water, and if surrounding residents adopt polluted surface water or ground water as domestic water, the health of the residents can be harmed, and serious residents die; and may also penetrate into the soil, causing soil contamination. Some industrial waste water which affects the growth of microorganisms in plants and soil also has unpleasant odor and pollutes the air.
Nowadays, the national supervision of stealing and discharging waste water in chemical plants is gradually strengthened, but in most cases, whether a ground pipeline steals and discharges waste water in rivers or lakes is simply checked, but at present, a lot of chemical plants directly steal and discharge waste water underground in plant areas, and waste water is discharged by permeating underground rivers or soil, so that the behavior of stealing and discharging waste water is more concealed, and the harm is more serious. Therefore, it is necessary to design a monitoring system for groundwater around a chemical plant to further prevent the stealing and draining of wastewater in the chemical plant.
Disclosure of Invention
The invention aims to provide a monitoring system for underground water around a chemical plant, which has the advantages of accurate measurement, multiple measured data and remote real-time monitoring.
In order to achieve the purpose, the invention adopts the following technical scheme: a system for monitoring groundwater surrounding a chemical plant, comprising: the system comprises a plurality of detection wells, a plurality of acquisition units, a plurality of data receiving units, an analog-to-digital conversion unit, a data processing unit, a wireless communication unit and a monitoring center; wherein the plurality of detection wells are uniformly arranged on the periphery of the chemical plant; the plurality of acquisition units are respectively arranged in the plurality of detection wells and used for detecting the quality of underground water around the chemical plant; the multi-path data receiving unit is electrically connected with the plurality of acquisition units through a plurality of cables; the analog-to-digital conversion unit is arranged between the multi-channel data receiving unit and the data processing unit and is used for converting the analog signals into digital signals; the wireless communication unit is arranged between the data processing unit and the monitoring center, is electrically connected with the data processing unit and is wirelessly connected with the monitoring center, and the data processing unit can be in wireless signal transmission with the monitoring center through the wireless communication unit.
In addition, the invention also provides the following auxiliary technical scheme:
the monitoring system for the underground water around the chemical plant also comprises a primary amplifier and a secondary amplifier which are used for amplifying the voltage or the power of the signal, wherein the primary amplifier is arranged between the acquisition unit and the multi-path data receiving unit, and the secondary amplifier is arranged between the multi-path data receiving unit and the analog-to-digital conversion unit.
The monitoring system for underground water around the chemical plant also comprises a filter arranged between the multipath data receiving unit and the secondary amplifier.
The monitoring system for the underground water around the chemical plant further comprises an early warning module, wherein the input end of the early warning module is electrically connected with the output end of the data processing unit, and the early warning module is in one-way connection with the output end of the data processing unit.
The monitoring system for the underground water around the chemical plant also comprises a plurality of deep well pumps which are respectively and electrically connected with the data processing unit and are respectively arranged in the plurality of detection wells.
The number of the detection wells is 4, the detection wells are respectively arranged in four directions of south, east and west of a chemical plant, and the well depth is 2-4 meters.
The acquisition unit comprises one or more of a water level detector, a water temperature detector, a COD detector, a conductivity detector, a pH detector, a dissolved oxygen detector and a spectrophotometer.
The wireless communication unit is a GPRS, CDMA, 3G, 4G, WIFI, WLAN or WIMAX communication module.
Compared with the prior art, the invention has the advantages that: the utility model provides a monitoring system of peripheral groundwater of chemical plant, this system is main including detecting the well, the acquisition unit, multichannel data receiving unit, the analog-to-digital conversion unit, data processing unit and wireless communication unit, the acquisition unit sets up in detecting the well, can gather the quality of water of peripheral groundwater of chemical plant in real time, through the wireless communication unit, can make data processing unit can carry out wireless communication with the surveillance center, thereby embodied this system have measured the accuracy, the measured data multiaspect, advantages such as remote real-time monitoring can.
Drawings
FIG. 1 is a flow chart of a system for monitoring groundwater in the vicinity of a chemical plant according to a preferred embodiment of the present invention.
FIG. 2 is a schematic illustration of the profile of the well log of FIG. 1.
Fig. 3 is a schematic structural diagram of the acquisition unit in fig. 1.
Fig. 4 is a data transmission flow diagram of the wireless communication unit of fig. 1.
Detailed Description
The present invention will be described in further non-limiting detail with reference to the following preferred embodiments and accompanying drawings.
Fig. 1 shows a monitoring system for groundwater around a chemical plant, which is mainly used for detecting the quality of groundwater in the chemical plant in real time, generating data signals, and remotely transmitting the data signals to a monitoring center, so that monitoring personnel at the monitoring center can know the local water quality in real time without field on-site investigation. Because, the chemical wastewater has the following characteristics: the system mainly starts from the fact that the system for monitoring the groundwater around the chemical plant is high in water temperature, high in COD (chemical oxygen demand), unstable in pH value and high in nitrogen and phosphorus content, and simultaneously monitors multiple chemical indexes of the groundwater quality, and is multi-sided and accurate.
Specifically, referring to fig. 1, the system for monitoring groundwater in the periphery of a chemical plant mainly comprises the following modules: a plurality of inspection wells 50 uniformly arranged around the chemical plant 100; a plurality of collecting units 1 which are arranged in the plurality of detection wells 50 and contact with the underground water to detect the water quality in real time; a multi-channel data receiving unit 2 for receiving, integrating, processing and transmitting the signals of the acquisition unit 1; an analog-to-digital conversion unit 3 for converting an analog signal into a digital signal; a data processing unit 4; a wireless communication unit 5 electrically connected with the data processing unit 4 and bidirectionally connected; and a monitoring center 6 that performs wireless signal transmission with the data processing unit 4 via the wireless communication unit 5. The system is powered by a power supply with the output voltage of 10V-15V, and the power supply can be a storage battery, a lithium battery or a solar battery.
Referring to fig. 2, the number of the detection wells 50 is 4, and the detection wells are respectively distributed in four directions of the south, the west and the north of the chemical plant, so that the data are comprehensive due to multi-directional detection, and the omission of detection is avoided. The depth of the 4 detection wells 50 is similar to that of a common drinking well, and is approximately between 6 and 12 meters, the depth adopted by the embodiment is 8 meters, and the distance from the chemical plant is approximately 500 meters, which is set by comprehensively considering the cost and the water permeability.
The number of the collecting units 1 is 4, and the collecting units are respectively arranged in the 4 detection wells 50 to detect underground water in the wells. Referring to fig. 3, the collecting unit 1 of the present embodiment includes a water level detector a, a water temperature detector b, a COD detector c, a pH detector d, a spectrophotometer e, which are respectively used for detecting water level, water temperature, COD content, pH value, nitrogen and phosphorus content, and of course, if other signals are also required to be detected, such as: turbidity, hardness, permanganate index, etc., and other measurement instruments may also be replaced or added. In summary, the acquisition unit 1 converts the physical quantities of the groundwater parameters into electrical signals, and these electrical signals are analog types.
The multi-channel data receiving unit 2 is a multi-channel analog switch, and is arranged between the acquisition unit 1 and the analog-to-digital conversion unit 3, because the acquisition unit 1 acquires and outputs more signals, and under the condition that the multi-channel signals share one channel of analog-to-digital conversion unit 3, the multi-channel data receiving unit 2 is required to transmit the multi-channel signals to the analog-to-digital conversion unit 3 for conversion. The multi-path data receiving unit 2 is composed of a bipolar transistor switch.
The analog-to-digital conversion unit 3 is an analog-to-digital conversion unit, which receives signals of the acquisition unit 1 from the multiple data receiving units 2, and since the acquisition unit 1 includes sensors, and the signals output by the sensors are analog signals, and since the data processing unit 4 can only process data signals, and cannot process analog signals, the analog-to-digital conversion unit 3 is used to convert the analog signals into digital signals, so that the data processing unit 4 can perform comprehensive logic processing.
The output end of the analog-to-digital conversion unit 3 is electrically connected with the input end of the data processing unit 4, and the data processing unit 4 receives the digital signals converted by the analog-to-digital conversion unit 3 and performs logic processing on the signals. Specifically, the data processing unit 4 is configured with initial range values of various water quality signals, and when the data processing unit 4 receives the signal sent by the analog-to-digital conversion unit 3, the signal is first compared with the initial range values, and then the signal is compressed and encrypted into a data packet. In this embodiment, the data processing unit 4 is an AT89C52 type data processing unit.
According to the distance of transmission distance and different requirements of transmission rate, the wireless communication unit 5 can be a GPRS, CDMA, 3G, 4G, WIFI, WLAN or WIMAX communication module, and in this embodiment, the wireless communication unit 5 employs a GPRS (general Packet Radio service), i.e., general Packet Radio service, and the GPRS network is implemented by adding a GPRS Gateway Support Node (GGSN) and a GPRS service support node (SGSN) to the existing GSM network, so that the user can send and receive data in an end-to-end Packet mode, and the GPRS network has the characteristics of real-time online, volume charging, high-speed stable transmission, and the like, and is particularly suitable for intermittent, bursty, frequent, small-amount data transmission, and occasional large-amount data transmission, and compared with other wireless communication networks, the network has good anti-interference performance, high data reliability, low communication cost, and the like, The maintenance problem of the channel is not required to be considered, and the like.
The data processing unit 4 transmits the data packet to the monitoring center 6 through the wireless communication unit 5. Specifically, referring to fig. 4, the wireless communication unit 5 is configured to initialize, and then the AT command is sent to the base station server, and the point-to-point connection is established through negotiation and authentication between the two parties; after the connection is successful, the wireless communication unit 5 obtains an IP address from the mobile base station server, then embeds a TCP/IP data packet in a point-to-point protocol (PPP) frame, and uses socket programming to realize transmission with a data center on the Internet. If the GPRS terminal is disconnected with the Internet, the connection can be restored by redialing according to the flow chart.
The underground water monitoring system also comprises an early warning module 11 and a deep well pump 12 which are respectively and electrically connected with the data processing unit 4. The early warning module 11 comprises a loudspeaker and an LED lamp, the connection with the data processing unit 4 is one-way connection, the data processing unit 4 is internally provided with standard range values of various water quality parameters, when any one or more water quality parameters exceed the standard values, the early warning module 11 is started, the loudspeaker gives out an alarm sound, and the LED lamp is normally on; the deep-well pump 12 is arranged in the detection well 50 and is electrically connected with the data processing unit 4, the starting is controlled by the data processing unit 4, when the data processing unit 4 finds that the water quality is polluted, the deep-well pump 12 is controlled to be started, the water in the detection well 50 is pumped out, the sewage is prevented from continuously permeating, and meanwhile, the pumped water can be reserved as a pollution evidence or further checked and processed in a laboratory. The deep-well pump 12 is powered by a power supply with an output voltage of 220V.
In order to keep the signal integrity and distortion during transmission better, the monitoring system of the groundwater around the chemical plant can also comprise a primary amplifier 7, a filter 8 and a secondary amplifier 9, wherein the primary amplifier 7 and the secondary amplifier 8 are used for amplifying the voltage or power of the input signal and reducing the attenuation rate of the signal during transmission, and the filter 8 can effectively filter a frequency point of a specific frequency or frequencies except the frequency point to obtain a signal of the specific frequency or eliminate a signal after the specific frequency, so that a useful signal can pass through without attenuation as much as possible and an useless signal can be reflected as much as possible.
Specifically, the input end and the output end of the primary amplifier 7 are electrically connected with the acquisition unit 1 and the multi-path data receiving unit 2, respectively, and are used for amplifying signals acquired and sent by the acquisition unit 1; the input end of the filter 8 is electrically connected with the multi-channel data receiving unit 2; the input end and the output end of the secondary amplifier are respectively and electrically connected with the filter 8 and the analog-to-digital conversion unit 3, and are used for amplifying the signal filtered by the filter 8.
In conclusion, the monitoring system for the groundwater around the chemical plant can accurately measure the water quality parameters in real time by using the sensitive sensors, and meanwhile, the measured water quality parameters are more comprehensive due to the fact that the number of the sensors used is large and comprehensive; the remote monitoring center can monitor a water source out of a long distance through wireless communication, so that the monitoring is convenient and the labor cost is saved; the quality of water quality can be visually and vividly displayed through the display module and the early warning module, so that non-professional personnel can understand the quality, and the storage module can store related data in real time.
It should be noted that the above-mentioned preferred embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A system for monitoring groundwater in the periphery of a chemical plant is characterized by comprising: the system comprises a plurality of detection wells, a plurality of acquisition units, a plurality of data receiving units, an analog-to-digital conversion unit, a data processing unit, a wireless communication unit and a monitoring center; wherein,
the plurality of detection wells are uniformly arranged on the periphery of the chemical plant;
the plurality of acquisition units are respectively arranged in the plurality of detection wells and used for detecting the quality of underground water around the chemical plant;
the multi-path data receiving unit is electrically connected with the plurality of acquisition units through a plurality of cables;
the analog-to-digital conversion unit is arranged between the multi-channel data receiving unit and the data processing unit and is used for converting the analog signals into digital signals;
the wireless communication unit is arranged between the data processing unit and the monitoring center, is electrically connected with the data processing unit and is wirelessly connected with the monitoring center, and the data processing unit can be in wireless signal transmission with the monitoring center through the wireless communication unit.
2. The system for monitoring groundwater surrounding a chemical plant according to claim 1, further comprising a primary amplifier and a secondary amplifier for amplifying voltage or power of a signal, the primary amplifier being disposed between the acquisition unit and the multiplexed data receiving unit, and the secondary amplifier being disposed between the multiplexed data receiving unit and the analog-to-digital conversion unit.
3. The system for monitoring groundwater surrounding a chemical plant according to claim 2, further comprising a filter disposed between the multiple data receiving unit and the secondary amplifier.
4. The system according to claim 1, further comprising an early warning module, wherein an input terminal of the early warning module is electrically connected to an output terminal of the data processing unit in a unidirectional manner.
5. The system for monitoring groundwater around a chemical plant according to claim 1, further comprising a plurality of deep well pumps electrically connected to the data processing unit and disposed in the detection wells, respectively.
6. The system of claim 1, wherein: the number of the detection wells is 4, the detection wells are respectively arranged in four directions of the south, the east and the north of the chemical plant, and the well depth is 2-4 meters.
7. The system for monitoring groundwater surrounding a chemical plant according to claim 1, wherein: the acquisition unit comprises one or more of a water level detector, a water temperature detector, a COD detector, a conductivity detector, a pH detector, a dissolved oxygen detector and a spectrophotometer.
8. The system for monitoring groundwater surrounding a chemical plant according to claim 1, wherein: the wireless communication unit is a GPRS, CDMA, 3G, 4G, WIFI, WLAN or WIMAX communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428415.9A CN104345130A (en) | 2014-08-22 | 2014-08-22 | Monitoring system for underground water around chemical plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428415.9A CN104345130A (en) | 2014-08-22 | 2014-08-22 | Monitoring system for underground water around chemical plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104345130A true CN104345130A (en) | 2015-02-11 |
Family
ID=52501184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410428415.9A Withdrawn CN104345130A (en) | 2014-08-22 | 2014-08-22 | Monitoring system for underground water around chemical plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104345130A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675836A (en) * | 2016-03-02 | 2016-06-15 | 华北水利水电大学 | Underground water quality monitoring method |
| CN108645806A (en) * | 2018-05-07 | 2018-10-12 | 南京大学 | Distributed water monitoring device and its data interactive method |
| CN110278287A (en) * | 2019-07-24 | 2019-09-24 | 浙江创韵环境科技有限公司 | A kind of sewage monitoring system |
| CN114623872A (en) * | 2022-03-08 | 2022-06-14 | 内蒙古金原农牧科技有限公司 | Underground water dynamic monitoring system based on strong magnetic wireless transmission |
-
2014
- 2014-08-22 CN CN201410428415.9A patent/CN104345130A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675836A (en) * | 2016-03-02 | 2016-06-15 | 华北水利水电大学 | Underground water quality monitoring method |
| CN108645806A (en) * | 2018-05-07 | 2018-10-12 | 南京大学 | Distributed water monitoring device and its data interactive method |
| CN110278287A (en) * | 2019-07-24 | 2019-09-24 | 浙江创韵环境科技有限公司 | A kind of sewage monitoring system |
| CN114623872A (en) * | 2022-03-08 | 2022-06-14 | 内蒙古金原农牧科技有限公司 | Underground water dynamic monitoring system based on strong magnetic wireless transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102053139B (en) | Real-time multiparameter remote water quality monitoring system and method | |
| CN101498598A (en) | Wireless security monitoring system for large dam | |
| CN104345130A (en) | Monitoring system for underground water around chemical plant | |
| CN204831361U (en) | Slip mass intelligent monitoring system based on big dipper satellite and mobile communication | |
| CN211206462U (en) | Thing networking water quality monitoring system | |
| CN104049072A (en) | Remote system for monitoring water quality parameters through cellular wireless communication | |
| CN204154335U (en) | A kind of silo humiture remote supervision system | |
| CN202757663U (en) | Pressure-type water level measuring device | |
| CN105021790A (en) | Water quality monitoring system and method | |
| CN206573567U (en) | A kind of real-time water monitoring device applied based on LI FI | |
| CN202338022U (en) | Remote monitoring system for sewer gases | |
| CN207095608U (en) | A kind of sewage monitoring system based on ZigBee and Labview | |
| CN204831372U (en) | Water source remote monitoring system based on wireless transmission | |
| CN204924358U (en) | Reservoir flood control monitoring system based on GPRS communication and internet | |
| CN101871797A (en) | Portable wireless mobile geotechnical engineering parameter test platform based on Bluetooth | |
| CN204990658U (en) | Pressure sensing device and data monitoring system | |
| CN111080979A (en) | Sewage pipe network monitoring system based on big data | |
| CN206514990U (en) | A kind of online dam safety intelligent monitor system based on mobile platform | |
| CN113155104A (en) | Intelligent river channel monitoring system | |
| CN205301309U (en) | Online automatic monitoring system of water environment | |
| CN211263435U (en) | Water quality on-line monitoring system | |
| CN205428169U (en) | Intelligence big -arch shelter detection information storage system | |
| CN211089677U (en) | Groundwater environment monitoring system based on thing networking | |
| CN204065054U (en) | A kind of indoor wireless Formaldehyde system | |
| CN206353153U (en) | A kind of water quality on-line detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150211 |