CN107819857A - A kind of water supply network remote monitoring system - Google Patents
A kind of water supply network remote monitoring system Download PDFInfo
- Publication number
- CN107819857A CN107819857A CN201711123625.7A CN201711123625A CN107819857A CN 107819857 A CN107819857 A CN 107819857A CN 201711123625 A CN201711123625 A CN 201711123625A CN 107819857 A CN107819857 A CN 107819857A
- Authority
- CN
- China
- Prior art keywords
- water
- information
- mcu
- water quality
- transmission
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
Abstract
The invention discloses a kind of water supply network remote monitoring system, including MCU, data analysis and processing unit, cloud storage unit, data transmission unit, flowmeter, water-level gauge, water quality detection equipment, video camera, standby reservoir, reserve pump control unit, water pump control cabinet, water pump, alarm device and display device;Flowmeter, water-level gauge, water quality detection equipment and video camera are connected by Zigbee wireless communication networks and data transmission unit;The flowmeter is set in aqueduct;Water-level gauge and water quality detection equipment are arranged in reservoir;The present invention can realize and the water in reservoir is monitored in real time, above- mentioned information can be carried out into timely convenient storage by the setting of cloud storage unit is inquired about in the future by the setting of flowmeter, water-level gauge and water quality detection equipment;Pass through the setting of standby reservoir and standby water control unit so that the standby reservoir that can automatically switch when detecting that the water quality in reservoir is bad is supplied water, and avoids the appearance for the situation of cutting off the water supply.
Description
Technical field
The invention belongs to monitoring field, is related to a kind of water supply network, specifically a kind of water supply network remote monitoring system.
Background technology
For the technical ability function of water supplying system, whole water supplying system answers demand of the satisfied users to water quality, water and hydraulic pressure.
In addition, whole capital construction process and produce operating in there is also a need for capital expenditure save, usually running expense is low, operation handle just
Profit, tower-free water supplying can produce and give full play to safely the economic benefit of whole water supplying system.Thus, correctly select water supply
System, there is highly important implication.Influence that the key element selected of water supplying system is many, mainly have cities and towns or cell plan, when
The type pole that ground physical features, user send to the demand and water of water supplying system.Because above-mentioned key element is different, water supplying system can have
Various different modes and its composition.Such as make water source to meet the deep phreatic water of health demand, supply resident living is drunk,
Then just not demand purification disposal, is only founded water intaking and writing brush matches somebody with somebody Hydraulic Projects, the water of resident living water is used as such as using river
During source, the carbon steel tower-free water supplying then process such as demand water intaking, purification and smooth water distribution.In construction process, it is necessary to according to tool
Body situation, select rational water supplying system.
When the water supply monitoring system underaction for being some current water factories, real-time analysis to data is not accomplished and to water quality
Real-time monitoring and remind staff's timely processing, and have when meeting with quality problem pause water supply situation and occur;For
Solve drawbacks described above, a solution is now provided.
The content of the invention
It is an object of the invention to provide a kind of water supply network remote monitoring system.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of water supply network remote monitoring system, including MCU, data analysis and processing unit, cloud storage unit, data biography
Defeated unit, flowmeter, water-level gauge, water quality detection equipment, video camera, standby reservoir, reserve pump control unit, water pump control
Cabinet, water pump, alarm device and display device.
Wherein, flowmeter, water-level gauge, water quality detection equipment and video camera pass through Zigbee wireless communication networks and data
Transmission unit is connected;The flowmeter is set in aqueduct;Water-level gauge and water quality detection equipment are arranged in reservoir;It is described to take the photograph
Camera uniformly dispersing is inside water factory;
Wherein, the data transmission unit is connected by GPRS network with the data analysis with processing unit;
Wherein, the data analysis electrically connects with processing unit with the MCU;
Wherein, the MCU is connected by GPRS network and cloud storage unit;The MCU and water pump control cabinet, standby water control
Unit, alarm device and display device electrical connection processed;
Wherein, the water pump control cabinet and the water pump controller control.
Further, it is characterised in that the flowmeter is used to monitor the water-carrying capacity in aqueduct, the flow in real time
Count to data transmission unit and transmit flow information;The water-level gauge is used to monitor reservoir level information in real time, and the water-level gauge will
Water level information is transferred to data transmission unit;The camera be used for water factory inside is monitored in real time, the camera to
Data transmission unit transmits image information.
Further, it is characterised in that the water quality detection equipment is used to monitor the water quality information in reservoir in real time, described
Water quality detection equipment transmits water quality information to the data transmission unit.
Further, it is characterised in that the data transmission unit receives the flow information of the flowmeter transmission, described
Data transmission unit receives the water level information of the water-level gauge transmission, and the data transmission unit receives the water quality detection equipment
The water quality information of transmission, the data transmission unit receive the image information of the camera transmissions, the data transmission unit
To the data analysis and processing unit transmission water level information, water quality information, flow information and image information.
Further, it is characterised in that the data analysis receives the data transmission unit with processing unit and passed
Defeated water level information, water quality information, flow information and image information;The data analysis is detecting water quality letter with processing unit
Breath can transmit the excessively poor order of water quality when being less than preset value to MCU;The data analysis is detecting water level information with processing unit
Water inlet order can be transmitted during less than default lowest water level to MCU, the data analysis is detecting water level information with processing unit
It can transmit and cease and desist order to MCU when reaching default peak level;The data analysis is used to transmit water level to MCU with processing unit
Information, water quality information, flow information and image information.
Further, it is characterised in that the MCU is receiving the water quality mistake of the data analysis and processing unit transmission
Transmitted during difference order to water pump control cabinet and stop supplying water order and transmit order of supplying water to standby water control unit;The MCU exists
Receive the water quality of the data analysis and processing unit transmission excessively poor order when to the alarm device transmit alert command;Institute
MCU is stated to receive the water inlet order of the data analysis and processing unit transmission and transmit water inlet order to the water pump control cabinet,
The MCU receptions data analysis being ceased and desisted order and being ordered to water pump control cabinet transmission stopping with processing unit transmission
Order;Water level information, water quality information, flow information and the image that the MCU receives the data analysis and processing unit transmission are believed
Breath;The MCU transmits water level information, water quality information, flow information and image information to cloud storage unit and display device.
Further, it is characterised in that the water pump control cabinet receives the water inlet order of the MCU transmission and drives water pump
Start to intake;The water pump control cabinet receives ceasing and desisting order and controlling water pump to stop water inlet for the MCU transmission.
Further, it is characterised in that the standby water control unit receives the water supply order of the MCU transmission and passed through
Standby reservoir proceeds by water supply;The standby reservoir be used to storing it is cleaned after the water source that reaches a standard of water quality.
Further, it is characterised in that the alarm device receives the alert command of MCU transmission and sends alarm.
Further, it is characterised in that the display device receives water level information, water quality information, the flow letter of MCU transmission
Breath and image information simultaneously carry out real-time display;The cloud storage unit receive the water level information of the MCU transmission, water quality information,
Flow information and image information simultaneously store.
Beneficial effects of the present invention:A kind of water supply network remote monitoring system, when work, pass through water-level gauge and stream
Gauge is monitored to the water level in reservoir and flow in real time, and the water quality in reservoir is examined in real time by water quality detection equipment
Survey, alarm can be sent by alarm device in time when the water quality in reservoir goes wrong, by by water pump control come
Supplied water, while the water in reservoir can be purified using standby reservoir, avoided because can not when water quality goes wrong
The problem of water supply, occurs.The present invention can be realized in reservoir by the setting of flowmeter, water-level gauge and water quality detection equipment
Water is monitored in real time, and above- mentioned information can be carried out into timely convenient storage by the setting of cloud storage unit is looked into the future
Ask;Pass through the setting of standby reservoir and standby water control unit so that can be automatic when detecting that the water quality in reservoir is bad
Cut-in stand-by reservoir is supplied water, and avoids the appearance for the situation of cutting off the water supply, and practicality is answered in letter of the present invention.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the system block diagram of the present invention.
Embodiment
As shown in figure 1, a kind of water supply network remote monitoring system, including MCU, data analysis and processing unit, cloud storage
Unit, data transmission unit, flowmeter, water-level gauge, water quality detection equipment, video camera, standby reservoir, reserve pump control are single
Member, water pump control cabinet, water pump, alarm device and display device.
Flowmeter, water-level gauge, water quality detection equipment and video camera pass through Zigbee wireless communication networks and data transfer
Unit is connected;The flowmeter is set in aqueduct;Water-level gauge and water quality detection equipment are arranged in reservoir;The video camera
Uniformly dispersing is inside water factory;
The data transmission unit is connected by GPRS network with the data analysis with processing unit;
The data analysis electrically connects with processing unit with the MCU;
The MCU is connected by GPRS network and cloud storage unit;The MCU and water pump control cabinet, standby water management list
Member, alarm device and display device electrical connection;
The water pump control cabinet and the water pump controller control.
Wherein, the flowmeter is used to monitor the water-carrying capacity in aqueduct in real time, and the flowmeter is to data transfer list
Member transmission flow information;The water-level gauge is used to monitor reservoir level information in real time, and water level information is transferred to by the water-level gauge
Data transmission unit;The camera is used to monitor water factory inside in real time, and the camera passes to data transmission unit
Defeated image information.
Wherein, the water quality detection equipment be used in real time monitor reservoir in water quality information, the water quality detection equipment to
The data transmission unit transmits water quality information.
Wherein, the data transmission unit receives the flow information of the flowmeter transmission, and the data transmission unit connects
The water level information of the water-level gauge transmission is received, the data transmission unit receives the water quality letter of the water quality detection equipment transmission
Breath, the data transmission unit receive the image information of the camera transmissions, and the data transmission unit divides to the data
Analysis and processing unit transmission water level information, water quality information, flow information and image information.
Wherein, the data analysis receives water level information, the water of the data transmission unit transmission with processing unit
Matter information, flow information and image information;The data analysis is with processing unit when detecting that water quality information is less than preset value
The excessively poor order of water quality can be transmitted to MCU;The data analysis is detecting water level information less than default minimum water with processing unit
Water inlet order can be transmitted during position to MCU, the data analysis and processing unit are detecting that water level information reaches default highest water
It can transmit and cease and desist order to MCU during position;The data analysis and processing unit be used for MCU transmit water level information, water quality information,
Flow information and image information.
Wherein, the MCU when receiving the water quality poor order excessively of the data analysis and processing unit transmission to water pump
Switch board transmission stops supplying water order and transmits order of supplying water to standby water control unit;The MCU is receiving the data
Analysis with processing unit transmission water quality excessively poor order when to the alarm device transmit alert command;Described in the MCU is received
The water inlet order of data analysis and processing unit transmission simultaneously transmits water inlet order, the MCU receptions institute to the water pump control cabinet
Data analysis is stated to cease and desist order and ceasing and desisting order to water pump control cabinet transmission with what processing unit transmitted;The MCU is received
Water level information, water quality information, flow information and the image information of the data analysis and processing unit transmission;The MCU is to cloud
Memory cell and display device transmission water level information, water quality information, flow information and image information.
Wherein, the water pump control cabinet receives the water inlet order of the MCU transmission and drives water pump to start to intake;The water
Pump switch board receives ceasing and desisting order and controlling water pump to stop water inlet for the MCU transmission.
Wherein, the standby water control unit receive the MCU transmission water supply order and by standby reservoir start into
Row supplies water;The standby reservoir be used to storing it is cleaned after the water source that reaches a standard of water quality.
Wherein, the alarm device receives the alert command of MCU transmission and sends alarm.
Wherein, the display device receives water level information, water quality information, flow information and the image information of MCU transmission simultaneously
Carry out real-time display;The cloud storage unit receives water level information, water quality information, flow information and the image of the MCU transmission
Information simultaneously stores.
A kind of water supply network remote monitoring system, when work, by water-level gauge and flowmeter in real time in reservoir
Water level and flow be monitored, the water quality in reservoir is detected in real time by water quality detection equipment, when the water in reservoir
Matter can send alarm by alarm device in time when going wrong, by being controlled by water pump to be carried out using standby reservoir
Supply water, while the water in reservoir can be purified, avoided because the problem of can not being supplied water when water quality goes wrong occurs.This
Invention can be realized and the water in reservoir is monitored in real time, be led to by the setting of flowmeter, water-level gauge and water quality detection equipment
Cross the setting of cloud storage unit and above- mentioned information can be subjected to timely convenient storage and inquired about in the future;By standby reservoir and standby
With the setting of water control unit so that the standby reservoir that can automatically switch when detecting that the water quality in reservoir is bad is supplied
Water, avoids the appearance for the situation of cutting off the water supply, and practicality is answered in letter of the present invention.
Above content is only to structure example of the present invention and explanation, affiliated those skilled in the art couple
Described specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from invention
Structure surmounts scope defined in the claims, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of water supply network remote monitoring system, it is characterised in that including MCU, data analysis and processing unit, cloud storage list
Member, data transmission unit, flowmeter, water-level gauge, water quality detection equipment, video camera, standby reservoir, reserve pump control unit,
Water pump control cabinet, water pump, alarm device and display device.
Wherein, flowmeter, water-level gauge, water quality detection equipment and video camera pass through Zigbee wireless communication networks and data transfer
Unit is connected;The flowmeter is set in aqueduct;Water-level gauge and water quality detection equipment are arranged in reservoir;The video camera
Uniformly dispersing is inside water factory;
Wherein, the data transmission unit is connected by GPRS network with the data analysis with processing unit;
Wherein, the data analysis electrically connects with processing unit with the MCU;
Wherein, the MCU is connected by GPRS network and cloud storage unit;The MCU and water pump control cabinet, standby water management list
Member, alarm device and display device electrical connection;
Wherein, the water pump control cabinet and the water pump controller control.
2. a kind of water supply network remote monitoring system according to claim 1, it is characterised in that the flowmeter is used for real
When monitor aqueduct in water-carrying capacity, the flowmeter to data transmission unit transmit flow information;The water-level gauge is used for
Water level information is transferred to data transmission unit by monitoring reservoir level information, the water-level gauge in real time;The camera be used for pair
Monitored in real time inside water factory, the camera transmits image information to data transmission unit.
A kind of 3. water supply network remote monitoring system according to claim 1, it is characterised in that the water quality detection equipment
For monitoring the water quality information in reservoir in real time, the water quality detection equipment transmits water quality information to the data transmission unit.
A kind of 4. water supply network remote monitoring system according to claim 1, it is characterised in that the data transmission unit
The flow information of the flowmeter transmission is received, the data transmission unit receives the water level information of the water-level gauge transmission, institute
The water quality information that data transmission unit receives the water quality detection equipment transmission is stated, the data transmission unit receives the shooting
The image information of machine transmission, the data transmission unit is to water level information is transmitted in the data analysis and processing unit, water quality is believed
Breath, flow information and image information.
A kind of 5. water supply network remote monitoring system according to claim 1, it is characterised in that the data analysis
Water level information, water quality information, flow information and the image information of the data transmission unit transmission are received with processing unit;It is described
Data analysis can transmit the excessively poor order of water quality when detecting that water quality information is less than preset value with processing unit to MCU;The number
Water inlet order, the number can be transmitted to MCU when detecting that water level information is less than default lowest water level according to analysis and processing unit
It can transmit and cease and desist order to MCU when detecting that water level information reaches default peak level with processing unit according to analysis;The number
It is used for according to analysis and processing unit to MCU transmission water level information, water quality information, flow information and image information.
6. a kind of water supply network remote monitoring system according to claim 1, it is characterised in that the MCU is being received
The water quality that the data analysis and processing unit transmit excessively poor order when the order and to standby of stopping supplying water is transmitted to water pump control cabinet
Order of supplying water is transmitted with water control unit;The MCU is excessively poor in the water quality for receiving the data analysis with processing unit transmits
During order alert command is transmitted to the alarm device;The MCU receives the water inlet of the data analysis and processing unit transmission
Order and transmit water inlet order to the water pump control cabinet, the MCU receives the data analysis and stopped with what processing unit transmitted
Only order and ceased and desisted order to water pump control cabinet transmission;The MCU receives the data analysis and processing unit transmission
Water level information, water quality information, flow information and image information;The MCU believes to cloud storage unit and display device transmission water level
Breath, water quality information, flow information and image information.
7. a kind of water supply network remote monitoring system according to claim 1, it is characterised in that the water pump control cabinet connects
Receive the water inlet order of the MCU transmission and drive water pump to start to intake;The water pump control cabinet receives the stopping of the MCU transmission
Order and control water pump to stop water inlet.
A kind of 8. water supply network remote monitoring system according to claim 1, it is characterised in that the standby water management list
Member receives the water supply order of the MCU transmission and proceeds by water supply by standby reservoir;The standby reservoir is used to store only
The water source that water quality after change reaches a standard.
9. a kind of water supply network remote monitoring system according to claim 1, it is characterised in that the alarm device receives
The alert command of MCU transmission simultaneously sends alarm.
10. a kind of water supply network remote monitoring system according to claim 1, it is characterised in that the display device connects
Receive water level information, water quality information, flow information and the image information of MCU transmission and carry out real-time display;The cloud storage unit
Receive water level information, water quality information, flow information and the image information of the MCU transmission and store.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711123625.7A CN107819857A (en) | 2017-11-14 | 2017-11-14 | A kind of water supply network remote monitoring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711123625.7A CN107819857A (en) | 2017-11-14 | 2017-11-14 | A kind of water supply network remote monitoring system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107819857A true CN107819857A (en) | 2018-03-20 |
Family
ID=61608964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711123625.7A Pending CN107819857A (en) | 2017-11-14 | 2017-11-14 | A kind of water supply network remote monitoring system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107819857A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110426580A (en) * | 2019-08-01 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of the control cabinet method of inspection and device of cold water computer room group control system |
CN111273620A (en) * | 2020-02-10 | 2020-06-12 | 安徽海沃特水务股份有限公司 | Water supply equipment monitoring and management system based on Internet of things |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2688759Y (en) * | 2004-03-26 | 2005-03-30 | 张森林 | Intelligent water-supplying monitor for high-building |
CN102707699A (en) * | 2012-06-20 | 2012-10-03 | 新疆额尔齐斯河流域开发工程建设管理局 | Unattended reservoir water supply and management system |
CN104574895A (en) * | 2014-11-03 | 2015-04-29 | 安徽泽众安全科技有限公司 | Intelligent household water monitoring system based on internet of things |
CN106400880A (en) * | 2016-10-19 | 2017-02-15 | 广东科创工程技术有限公司 | Safe water supply purification device based on internet of things |
-
2017
- 2017-11-14 CN CN201711123625.7A patent/CN107819857A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2688759Y (en) * | 2004-03-26 | 2005-03-30 | 张森林 | Intelligent water-supplying monitor for high-building |
CN102707699A (en) * | 2012-06-20 | 2012-10-03 | 新疆额尔齐斯河流域开发工程建设管理局 | Unattended reservoir water supply and management system |
CN104574895A (en) * | 2014-11-03 | 2015-04-29 | 安徽泽众安全科技有限公司 | Intelligent household water monitoring system based on internet of things |
CN106400880A (en) * | 2016-10-19 | 2017-02-15 | 广东科创工程技术有限公司 | Safe water supply purification device based on internet of things |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110426580A (en) * | 2019-08-01 | 2019-11-08 | 珠海格力电器股份有限公司 | A kind of the control cabinet method of inspection and device of cold water computer room group control system |
CN111273620A (en) * | 2020-02-10 | 2020-06-12 | 安徽海沃特水务股份有限公司 | Water supply equipment monitoring and management system based on Internet of things |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN207115171U (en) | Remote monitoring system for on-line monitoring sewage disposal system | |
CN202443276U (en) | Intelligent network drinking fountain system | |
CN107819857A (en) | A kind of water supply network remote monitoring system | |
CN104355453B (en) | Full-automatic control system and method for water purification plant | |
WO2010108413A1 (en) | Centralized supply system for electrolyzed oxidizing water and intelligent control method thereof | |
CN207148612U (en) | A kind of monitoring system of the intelligent secondary water-supply device based on Internet of Things | |
CN103711177A (en) | Wireless based multi-well remote intelligent control water supply system | |
CN204215249U (en) | Secondary water-supply equipment remote monitoring system | |
CN109384281A (en) | Reverse osmosis seawater desalting control system | |
CN219001841U (en) | Indoor fire hydrant with leak self-checking function | |
CN105630018A (en) | Drinking water supply waterway safety control device and system | |
CN205338661U (en) | Water dispenser butting device and have this water dispenser butting device 's drinking water equipment | |
CN206986969U (en) | Secondary water-supply dual control system | |
CN207674815U (en) | A kind of freezer monitoring pre-alarm system | |
CN205318238U (en) | Intelligence supplies water and adds medicine automatic switching control equipment | |
CN210216558U (en) | Intelligent water supply equipment controlled by double PLC | |
CN208554695U (en) | Integral type rainforest cylinder automatic spraying system | |
CN206021048U (en) | A kind of real-time remote monitoring platform for being applied to secondary water-supply equipment | |
CN210320513U (en) | High-efficiency indoor humidity monitoring and management system | |
CN210269801U (en) | Energy-saving detection device for secondary water supply equipment | |
CN112947278A (en) | Secondary water supply automatic control system | |
CN106196459A (en) | A kind of intelligent air control system based on cloud platform | |
CN206757377U (en) | A kind of pump house operation monitoring system | |
CN206293961U (en) | Electric detection means in a kind of Drinking fountain | |
CN216081679U (en) | Automatic water level measuring system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180320 |