CN203072684U - Internet of things water monitoring system used in aquaculture - Google Patents
Internet of things water monitoring system used in aquaculture Download PDFInfo
- Publication number
- CN203072684U CN203072684U CN 201320024778 CN201320024778U CN203072684U CN 203072684 U CN203072684 U CN 203072684U CN 201320024778 CN201320024778 CN 201320024778 CN 201320024778 U CN201320024778 U CN 201320024778U CN 203072684 U CN203072684 U CN 203072684U
- Authority
- CN
- China
- Prior art keywords
- aquaculture
- water
- outlet pipe
- control terminal
- water body
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses an internet of things water monitoring system used in the aquaculture. The internet of things water monitoring system used in the aquaculture comprises an oxygenation device, a water pump, a collecting system which is used for collecting water parameters, a wireless observe and control terminal and a monitoring server, wherein the wireless observe and control terminal is connected with the collecting system and the monitoring server, the wireless observe and control terminal controls the water pump and the oxygenation device, the number of the set of the collecting system is one, the wireless observe and control terminal controls the water pump to orderly and respectively draw water of all aquaculture spots to a common water outlet pipe, the collecting system is arranged at the tail end of the common water outlet pipe, and the tail end of the common water outlet pipe is placed inside an accuracy-improving device. The internet of things water monitoring system used in the aquaculture prolongs the service life of the oxygenation device and reduces cost and electricity consumption of the device. Due to the fact that a plurality of aquaculture spots share the same wireless observe and control terminal and the collecting system, comparability of water quality parameters of the plurality of aquaculture spots is improved, and device cost of water quality monitoring of the aquaculture spots is reduced. A sensor is arranged on the common water outlet pipe of the water pump near the bank of a fishpond, so that the sensor is convenient to wash and replace.
Description
Technical field
The utility model relates to Internet of Things monitoring field, more specifically, relates to a kind of Internet of Things water body monitoring system that is used for aquaculture.
Background technology
Along with the development of culture fishery, high density intensive culture mode becomes main flow day by day.Very easily accumulation fast in breeding water body of residual bait, ight soil, other excretas, dead algae and plankton corpse under the intensive culture condition, these organic rotten decomposition will cause the rapid deterioration of cultivation water environment and a large amount of breedings of pathogeny microorganism, thereby cause culturing failure.As seen, the control of cultivation water environment is the intensive culture key of success.In the water body various physical and chemical factors as: the variation of water temperature, water colour, salinity, transparency, dissolved oxygen, pH value, ammonia nitrogen, hydrogen sulphide, chemical oxygen consumption (COC) etc. is the direct reflection of cultivation water environment quality, is the important evidence that the culturist takes technical measures.Particularly pH value, dissolved oxygen and three indexs of water temperature and can be used for inferring indirectly the variation tendency and the contaminated degree of water body of other physical and chemical factors not only with the existence of aquaculture organism with grow closely bound uply, especially receive culturist's concern.
Because condition restriction, traditional cultivation water environment monitoring mainly is that index is measured in artificial timing one or two with control mode, and the just offshore or the top layer water sample of monitoring.And some important index such as dissolved oxygen are not monitored, and just open oxygen increasing equipment to full load even excess load and keep.Its weak point shows: water environment changes comparatively fast under (1) high density intensive culture mode, owing to lack monitoring and pre-warning facility in real time, traditional monitor mode is easy to miss the best opportunity of taking technical measures; (2) aquaculture organism generally moves in lower floor or bottom in the water body, because just offshore or top layer water sample that the traditional monitor mode of condition restriction is monitored are not represented the real living environment of aquaculture organism; (3) traditional monitor mode measurement index is single and lack continuity, and is representative poor, thereby is difficult to infer that the variation tendency of water environment takes corresponding technical measures; (4) conventional method of on-line measurement water body parameter, normally sensor is placed on the water the inside in fish pond, but the water in fish pond there are a lot of impurity, as the ight soil of fishes and shrimps, dead algae, mud powder etc., it is just very dirty that sensor is placed in the water 3-4 days, and its data of gathering are just inaccurate.The accuracy that keeps the data of gathering will be biweekly taken sensor in the fish pond and is cleaned, and operates pretty troublesome; (5) method of traditional on-line measurement water body parameter, normally sensor is overlapped with one in every mouthful of fish pond, because the degree varies sample that precision technical merit different, operating personnel's calibration sensor is different, sensor is dirty of sensor itself, cause the comparativity of water quality parameter in Duo Kou fish pond lower, their gap, do not know to be mainly derived from the gap of water body itself, or the low precision of sensor itself is apart from the gap of the gap of, transducer calibration technical merit, dirty degree varies sample; (6) culturist does not much monitor dissolved oxygen at present, normally switching on and shutting down by rule of thumb, culturing later stage running with making oxygen increasing equipment full load even excess load often, this not only can't accomplish science oxygenation, also cause the waste of the energy, the increase of breed adult, the service life of having reduced oxygen increasing equipment simultaneously.
Existing Internet of Things breeding water body TT﹠C system generally is to adopt a cover acquisition system to obtain the water body parameter respectively at each breeding-ground, the water body parameter is transferred to the radio fest and control terminal, then be transferred to server, server sends corresponding instruction and gives the radio fest and control terminal, the work of radio fest and control terminal control oxygen increasing equipment.Adopt this system no doubt can faster obtain the water body parameter of culturing out, but owing to all need to lay the acquisition system collection at each breeding-ground, this mode has not only increased the cost of collecting device; When each breeding-ground was compared, because the precision of each acquisition system (sensor) itself can be variant, dirty degree was also different simultaneously, caused comparing error like this and increased.And existing harvester (sensor) generally directly is placed in the water of breeding-ground, and the environment in the water is comparatively complicated, and causing often needs to clean to acquisition system.When needing to clean, must reach from water, this cleaning amount that causes increases.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model proposes a kind of Internet of Things water body monitoring system that is used for aquaculture, realize to improve the water body parameter of many aquaculture points comparativity, reduce average each aquaculture point the water body parameter the observing and controlling cost, make things convenient for acquisition system to clean, the life-span of the precision of raising image data, science oxygenation, energy-conservation, raising oxygen increasing equipment.
To achieve these goals, the technical solution of the utility model is:
A kind of Internet of Things water body monitoring system that is used for aquaculture, comprise the oxygen increasing equipment that is used for oxygenation, water pump, be used to gather the acquisition system of water body parameter, radio fest and control terminal and monitoring server, described radio fest and control terminal and acquisition system, monitoring server connects, described radio fest and control terminal control of pump and oxygen increasing equipment, described acquisition system is a cover, radio fest and control terminal control of pump extracts the water of each aquaculture point respectively orderly to common outlet pipe, acquisition system is installed in the end of the common outlet pipe of water pump, and common outlet pipe end is placed on a precision and improves in the device.
This monitoring system is placed in common outlet pipe end with acquisition system, and the precision that is placed on common outlet pipe end improves in the device (being placed on water tank on the bank), acquisition system is gathered each parameter of water body, and the wireless data transfer module of each parameter of water body by the radio fest and control terminal uploaded to monitoring server; Wherein precision raising device is placed on the bank and gets final product.
The acquisition system that adopts this mode to lay is convenient to the cleaning of harvester and maintenance; A shared cover acquisition system and a radio fest and control terminal put in a plurality of aquacultures, make the water body parameter of a plurality of aquaculture points that monitoring system collects that extremely strong comparativity be arranged, by the water body parameter of a plurality of aquaculture points of horizontal contrast, can effectively take precautions against and culture risk and provide reliable data relatively to culturing scientific research.The water of aquaculture point is extracted by in common outlet pipe to the precision raising device, precision improves device can make common outlet pipe avoid by sun direct projection, and because the water that precision improves in the device is the water that extracts from aquaculture point, its total environment difference is not very big, improves the more approaching reality of water body parameter that guarantees the acquisition system collection in the device so common outlet pipe end is placed on precision.
The radio fest and control terminal is controlled oxygen increasing equipment at times according to the oxygen dissolving value of water body.To oxygen increasing equipment control at times, its effect is as follows: 1, science oxygenation, the harmful substance of bottom, abundant oxidation fish pond, the probability of reduction fishes and shrimps death; 2, oxygen increasing equipment is not needed at full capacity or overload operation, power saving on the one hand, the heat that allows motor coil produce on the other hand distributes if having time, improves the life-span of oxygen increasing equipment greatly.
For the client can better obtain the ruuning situation that water pump, oxygen increasing equipment are understood in the water body parameter of each aquaculture point, the concrete situation of checking aquaculture point and observation by the access monitoring server, also added the equipment that mobile device, PC etc. can communicate by letter with monitoring server.
Further, described common outlet pipe is the outlet pipe that is connected with each pumping line.The outlet pipe of each water pump connects a common outlet pipe jointly, guarantee water to one a common outlet pipe of the aquaculture point that water pump extracts, thereby acquisition system only need be installed in the water body parameter that the end of common outlet pipe just can collect each aquaculture point.
Further, water pump is corresponding one by one with aquaculture point, promptly adopts a water pump to extract the water of an aquaculture point.
Further, it is water tank that described precision improves device, offers the opening that is used to connect blow-off pipe on the water tank.
Further, described acquisition system comprises one or more sensors in dissolved oxygen sensor, pH value sensor, temperature sensor, salinity sensor, ammonia nitrogen sensor and the nitrite sensor; The sensor that also comprises the signal that other can output equipment can be discerned.Can select one or more sensor types according to user's needs, with the water body that obtains aquaculture point parameter index.
Further, described radio fest and control terminal comprises wireless data transfer module, is connected with monitoring server by wireless data transfer module.
Further, be provided with screen pack in the described common outlet pipe, screen pack can effectively filter out the impurity in the water.
Generally, water pump extracts apart from the water surface more than 1 meter, apart from the fish pond water of bottom, fish pond more than 30 centimetres; Be that oxygen content is low because in the water of the distance water surface more than 1 meter, sunlight can't shine, and algae can't carry out photosynthesis; The middle and lower part of fish pond or bottom during aquaculture organism is normally grown are only significant so measure the water body parameter of lower floor in the fishing pool.
The beneficial effects of the utility model:
1) the water body parameter that adopts same set of acquisition system to gather a plurality of aquaculture points in turn, make the water body parameter of each aquaculture point have very strong comparativity, water body parameter by horizontal contrast aquaculture point just can play the effect of culturing risk of taking precautions against, for aquaculture research provides the active data support;
2) acquisition system is installed in common outlet pipe end, and common outlet pipe end is placed on precision and improves in the device, makes things convenient for the cleaning and the replacing of harvester, thereby improves the precision of image data;
3) according to the oxygen dissolving value of water body and at times control strategy, in the every day the highest period of oxygen dissolving value, be that sunshine is near the best period, by effective unlatching oxygen increasing equipment the hyperoxic superficial water on aquaculture point top layer is got to bottom, the harmful substance of oxidation aquatic products breeding-ground bottom, reduce its toxicity, culture risk thereby reduce; Because control strategy at times, science oxygenation makes the unnecessary running at full capacity of oxygen increasing equipment, reach the purpose of power and energy saving on the one hand, on the other hand, the heat that the coil of the motor of oxygen increasing equipment is produced distributes if having time, leap ahead the life-span of oxygen increasing equipment.
Description of drawings
Fig. 1 is the utility model water body parameter acquisition structure chart.
Fig. 2 is the curve dynamic change figure of the water body oxygen dissolving value of 1 to No. 4 fish pond some day.
Fig. 3 is the curve dynamic change figure of the water PH value of 1 to No. 4 fish pond some day.
Fig. 4 is the oxygen dissolving value comparison diagram of yesterday and two days today in No. 1 fish pond.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, but embodiment of the present utility model is not limited to this.
A kind of Internet of Things water body monitoring system that is used for aquaculture, comprise the oxygen increasing equipment that is used for oxygenation, water pump, be used to gather the acquisition system of water body parameter, radio fest and control terminal and monitoring server, radio fest and control terminal and acquisition system, monitoring server connects, radio fest and control terminal control of pump and oxygen increasing equipment, wherein water pump is corresponding one by one with aquaculture point, acquisition system is a cover, radio fest and control terminal control of pump extracts the water of each aquaculture point respectively orderly to common outlet pipe, acquisition system is installed in the end of common outlet pipe, and common outlet pipe end is placed on a precision and improves in the device.
In the present embodiment, the aquaculture point common fish pond of ascending the throne, it is water tank that precision improves device.
As Fig. 1, the 1-4 water pump is installed in the 1-4 fish pond respectively, the 1-4 water pump extracts the common outlet pipe place of the fish pond water in 1-4 fish pond to water pump respectively, the common outlet pipe end of water pump is equipped with dissolved oxygen sensor and PH sensor, common outlet pipe place is placed in the water tank on bank, be provided with screen pack in the common outlet pipe, offer an opening that is used to connect blow-off pipe on the water tank, sensor is transferred to the radio fest and control terminal by the analogue collection module of radio fest and control terminal with the water body parameter of gathering, and be transferred to monitoring server by the wireless data transfer module of radio fest and control terminal
Generally speaking, water pump extracts the fish pond water of locating more than 1 meter apart from the water surface, because in the water of the distance water surface more than 1 meter, sunlight can't shine, algae can't carry out photosynthesis, and oxygen content is low, and is that aquaculture organism normally is grown in this zone.
The method of the Internet of Things water body monitoring system of aquaculture, its implementation is:
A water pump is installed respectively in each fish pond, acquisition system is installed in the end of the common outlet pipe of water pump, and the end of the common outlet pipe of water pump is placed in the water tank on bank;
The sequential water that extracts each fish pond respectively of radio fest and control terminal control of pump is placed on fish pond water suction in the common outlet pipe of the water pump in the water tank;
Acquisition system is gathered the water that flows through common outlet pipe, and by the wireless data transfer module of radio fest and control terminal the water body parameter signal that obtains is transferred to monitoring server;
The radio fest and control terminal is according to the start and stop of the instruction control oxygen increasing equipment of monitoring server, by science oxygenation at times.
Earlier with 4 fish pond numberings, be respectively: the 1-4 fish pond, in the collection period T that sets, take turns starting the water pump that is installed in the fish pond, gather the water body parameter in 1-N fish pond successively, the water body parameter of gathering in the collection period T is transferred to detection and control terminal, enter the collection of next cycle.
Set per 15 minutes in the present embodiment and upload a secondary data, 15 minutes is a data collection period.In 15 minutes collection period, take turns starting the 1-4 water pump, gather the water body parameter on the 1-4 pool in turn.The water body parameter of surveying No. 1 pool is just opened No. 1 water pump and is taken out the water on No. 1 pool, moves 3 minutes continuously, and preceding 2 minutes sensors are image data not, last minute image data, and calculating mean value is uploaded to monitoring server; The water body parameter of surveying No. 2 pools is just opened No. 2 water pumps and is taken out the water on No. 2 pools, moves 3 minutes continuously, preceding 2 minutes image data not, last minute image data, and calculating mean value is uploaded to monitoring server; The parameter of surveying No. 3 pools is just opened No. 3 water pumps and is taken out the water on No. 3 pools, moves 3 minutes continuously, preceding 2 minutes image data not, last minute image data, and calculating mean value is uploaded to monitoring server; The parameter of surveying No. 4 pools is just opened No. 4 water pumps and is taken out the water on No. 4 pools, moves 3 minutes continuously, preceding 2 minutes image data not, last minute image data, and calculating mean value is uploaded to monitoring server.
If be now at 10 o'clock, open No. 1 water pump, move 3 minutes continuously, take out the water on No. 1 pool, preceding 2 minutes image data not, image data was 1 minute in the 3rd minute, and at 10:03 mean value and upload to monitoring server.
10:03 opens No. 2 water pumps, moves 3 minutes continuously, takes out the water on No. 2 pools, and preceding 2 minutes image data were not gathered 1 minute data on the 3rd minute, and in 10:06 mean value and upload to monitoring server.
10:06 opens No. 3 water pumps, moves 3 minutes continuously, takes out the water on No. 3 pools, and preceding 2 minutes image data were not gathered 1 minute data on the 3rd minute, and in 10:09 mean value and upload to monitoring server.
10:09 opens No. 4 water pumps, moves 3 minutes continuously, takes out the water on No. 4 pools, and preceding 2 minutes image data were not gathered 1 minute data on the 3rd minute, and in 10:12 mean value and upload to monitoring server.
Arrived 10:15, a data collection period finished in 15 minutes, and the uplink time point is respectively: 10:03,10:06,10:09,10:12.Enter next data collection cycle simultaneously, repeat the process of front.
In the present embodiment, dissolved oxygen sensor adopts the original-pack online dissolved oxygen sensor of ASI, and its performance parameter is as follows:
Temperature compensation element: PT100
Output: 0-25mV
Housing: ABS
Measurement category: 0-20ppm
Precision: 0.05ppm
Length of cable: zinc-plated cable, 6 meters of length.
The PH sensor adopts the original-pack online PH sensor device of ASI, and its performance parameter is as follows:
Temperature compensation element: PT100
Output: ± 1999mV
Housing: ABS
Measurement category: 0-14ppm
Precision: 0.02ppm
Length of cable: zinc-plated cable, 6 meters of length.
The performance parameter of temperature sensor requires as follows:
Input: 24V
Output: 4-20mA
Housing: stainless steel
Measurement category :-20-100 degree
Precision: 0.2 degree
Length of cable: zinc-plated cable, 5 meters of length.
Fig. 2 is the curve dynamic change figure of the water body oxygen dissolving value of 1 to No. 4 fish pond some day, and Fig. 3 is the dynamic changing curve of the water PH value on the 1-4 pool, and Fig. 4 is two days the comparison diagram of oxygen dissolving value in No. 1 fish pond.
Above-described embodiment of the present utility model does not constitute the qualification to the utility model protection domain.Any modification of within spiritual principles of the present utility model, having done, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present utility model.
Claims (7)
1. Internet of Things water body monitoring system that is used for aquaculture, comprise the oxygen increasing equipment that is used for oxygenation, water pump, be used to gather the acquisition system of water body parameter, radio fest and control terminal and monitoring server, described radio fest and control terminal and acquisition system, monitoring server connects, described radio fest and control terminal control of pump and oxygen increasing equipment, it is characterized in that, described acquisition system is a cover, radio fest and control terminal control of pump extracts the water of each aquaculture point respectively orderly to common outlet pipe, acquisition system is installed in the end of the common outlet pipe of water pump, and common outlet pipe end is placed on a precision and improves in the device.
2. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 1, it is characterized in that described common outlet pipe is the outlet pipe that is connected with each pumping line.
3. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 2, it is characterized in that described water pump is corresponding one by one with aquaculture point.
4. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 3, it is characterized in that it is water tank that described precision improves device.
5. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 4, it is characterized in that described acquisition system comprises one or more sensors in dissolved oxygen sensor, pH value sensor, temperature sensor, salinity sensor, ammonia nitrogen sensor and the nitrite sensor.
6. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 5, it is characterized in that described radio fest and control terminal comprises wireless data transfer module.
7. according to the described Internet of Things water body monitoring system that is used for aquaculture of claim 6, it is characterized in that, be provided with screen pack in the described common outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024778 CN203072684U (en) | 2013-01-17 | 2013-01-17 | Internet of things water monitoring system used in aquaculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320024778 CN203072684U (en) | 2013-01-17 | 2013-01-17 | Internet of things water monitoring system used in aquaculture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203072684U true CN203072684U (en) | 2013-07-24 |
Family
ID=48818586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320024778 Expired - Fee Related CN203072684U (en) | 2013-01-17 | 2013-01-17 | Internet of things water monitoring system used in aquaculture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203072684U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105840A (en) * | 2013-01-17 | 2013-05-15 | 广州中和通信科技有限公司 | Monitoring system and method of Internet of Things water for aquaculture |
| CN104133442A (en) * | 2014-07-25 | 2014-11-05 | 刘建勇 | Monitoring system of aquaculture internet of things |
| CN105223328A (en) * | 2015-10-28 | 2016-01-06 | 常州市金坛区水产技术指导站 | The synchronous water supply installation of a kind of culture of Chinese mitten crab water quality key chemical Indexs measure |
| CN105494228B (en) * | 2014-09-28 | 2019-06-11 | 湖北金福阳科技股份有限公司 | Solar energy oxygen increasing pump |
| CN110045771A (en) * | 2019-04-19 | 2019-07-23 | 淮阴工学院 | A kind of fishpond water quality intelligent monitor system |
-
2013
- 2013-01-17 CN CN 201320024778 patent/CN203072684U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103105840A (en) * | 2013-01-17 | 2013-05-15 | 广州中和通信科技有限公司 | Monitoring system and method of Internet of Things water for aquaculture |
| CN104133442A (en) * | 2014-07-25 | 2014-11-05 | 刘建勇 | Monitoring system of aquaculture internet of things |
| CN105494228B (en) * | 2014-09-28 | 2019-06-11 | 湖北金福阳科技股份有限公司 | Solar energy oxygen increasing pump |
| CN105223328A (en) * | 2015-10-28 | 2016-01-06 | 常州市金坛区水产技术指导站 | The synchronous water supply installation of a kind of culture of Chinese mitten crab water quality key chemical Indexs measure |
| CN110045771A (en) * | 2019-04-19 | 2019-07-23 | 淮阴工学院 | A kind of fishpond water quality intelligent monitor system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103105840A (en) | Monitoring system and method of Internet of Things water for aquaculture | |
| CN203072684U (en) | Internet of things water monitoring system used in aquaculture | |
| CN107410140B (en) | Pond ecological industrialized circulating water culture and purification system | |
| CN101713710B (en) | Method and system for sampling aquaculture waters in ponds in real time | |
| WO2016090810A1 (en) | Method for determining discharge capacity of drainage basin fresh water aquaculture pollution | |
| CN110870472A (en) | Artificial intelligence breeds cray integrated device | |
| CN105259873A (en) | Water ecology protection monitoring method | |
| CN205959106U (en) | Aquaponics intelligence observing and controlling system | |
| CN204480090U (en) | Kitchen garden intelligent control system | |
| CN101936871B (en) | Method for detecting pollutant production coefficient of deposit in cultivation pond | |
| CN103430886A (en) | Factory-like pearl culture system | |
| CN202697473U (en) | Intelligent fish disease remote diagnosis system | |
| CN204860613U (en) | A salinity automatic control device for aquaculture | |
| CN116784130A (en) | Zero release environmental protection and energy saving's intelligent control by temperature change big-arch shelter | |
| CN114236077B (en) | Online monitoring device for water quality of fishery culture and control method thereof | |
| CN203435552U (en) | Water circulation facilities used for Andrias davidianus cultivation | |
| CN206248135U (en) | A kind of small culture fishery Cultivated water water quality real time on-line monitoring system | |
| CN206308359U (en) | A kind of marine microalgae delamination test case | |
| CN209359381U (en) | Fishpond water quality management system for monitoring based on Internet of Things | |
| CN104731139A (en) | Family garden intelligent control system and control method thereof | |
| CN106441445A (en) | Split aquaculture water quality detection method | |
| CN105340804B (en) | A kind of Pelteobagrus fulvidraco ecology symbiotic cultivation method | |
| Mantikci et al. | Patterns of dark respiration in aquatic systems | |
| CN204518596U (en) | A kind of pesticide water ecological risk assessment experimental provision | |
| CN105388263A (en) | Method for evaluating shallow lake fishery environment by using microbial food web efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20170117 |