CN111018009A - Thing networking water purification system - Google Patents

Thing networking water purification system Download PDF

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Publication number
CN111018009A
CN111018009A CN201910555157.3A CN201910555157A CN111018009A CN 111018009 A CN111018009 A CN 111018009A CN 201910555157 A CN201910555157 A CN 201910555157A CN 111018009 A CN111018009 A CN 111018009A
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China
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water
client
module
management module
information
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CN201910555157.3A
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Chinese (zh)
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何君毅
陈仲诚
游逸宸
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Yien Co Ltd
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Yien Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The utility model provides a thing networking water purification system, including a plurality of purifier and high in the clouds management device, purifier includes an at least filter core, an at least water tank, an at least filter core induction element, an at least water yield induction element and a water purification end wireless transmission unit, water yield induction element corresponds the setting at each water tank, and the storage capacity of the drinking water of each water tank at present of supply measurement is in order to produce a water yield information respectively, filter core induction element corresponds the setting at each filter core respectively, and supply the measurement filter core to filter before the running water, the quality of water of back is in order to produce a quality of water information, high in the clouds management device includes a high in the clouds wireless transmission unit and a high in the clouds processing unit, high in the clouds processing unit is the storage capacity of the drinking water of corresponding according to the water yield information judgement, and judge the present life.

Description

Thing networking water purification system
Technical Field
The invention relates to a water purification system based on the internet of things, in particular to a water purification system based on the internet of things, which can manage the storage capacity of drinking water and the service life of a filter element through a cloud management device.
Background
Drinking water of many modern families is transported to the home through a series of treatment procedures, and in a long transportation process, water resources are easily polluted by the external environment or the water finally entering the home is influenced due to the penetration of pollution sources caused by old damage of underground pipelines.
With the continuous development of science and technology, various chemical pollution issues are continuously exploded, water quality of pesticides, dioxins, heavy metals and detergents is affected, the hidden crisis of modern health is increased, and the environmental hormones are dispersed in the environment and return to the human body through a food chain, so that the physiological regulation function of the human body is deeply affected.
In order to enable a family to enjoy real clean drinking water, the most effective filtration mode is currently known to be that a RO water filter is used as a filtration basis, bacteria, viruses, chemical pollutants and heavy metals are filtered, the family can obtain pure and clean water, activated carbon is matched to remove residual chlorine in the water, and meanwhile, a mineralization ball is arranged, so that the drinking water contains trace minerals required by a human body.
However, the conventional water filter cannot easily inform the user of the quality of the outlet water at the terminal, the unknown use state of the filter element, whether the water purifier is in good condition, whether the water leakage or leakage occurs, and when the water purifier is in a problem, the user should inform the water purifier to the maintenance personnel of the dealer.
Therefore, it is an important issue and focus of the present invention to provide a method for a user to know the quality of the outlet water at the terminal, the usage status of the filter element, and the status of the water purifier, so that a dealer can send out maintenance personnel at the first time to eliminate the problem of fault fixing when a problem occurs.
Disclosure of Invention
The invention aims to provide an internet-of-things water purification system which can enable a client user to know the quality of terminal outlet water, the using state of a filter element and the state of a water purification device.
Another object of the present invention is to provide an internet of things water purification system, in which a dealer can send out maintenance personnel at the first time to eliminate the problem of fault fixation when a problem occurs in a water purification device.
The invention relates to an Internet of things water purification system, which comprises a plurality of water purification devices and a cloud management device, wherein each water purification device comprises at least one filter element, at least one water tank, at least one water quantity sensing unit, at least one filter element sensing unit and a water purification end wireless transmission unit, the filter elements are used for filtering tap water into drinking water, and when the filter element is eliminated, the filter element can be replaced, the water tanks are used for storing the drinking water, the water quantity sensing units are correspondingly arranged in the water tanks, and is used for measuring the storage volume of each drinking water so as to respectively generate water volume information, the filter element sensing units are respectively and correspondingly arranged on each filter element, the wireless transmission unit at the water purifying end is in signal connection with the water quantity sensing unit and the filter element sensing unit and is used for transmitting the water quantity information and the water quality information; the cloud management device comprises a cloud wireless transmission unit and a cloud processing unit, the cloud wireless transmission unit is in signal connection with each water purification end wireless transmission unit and is used for receiving each water quantity information and each water quality information, the cloud processing unit is in signal connection with the cloud wireless transmission unit and receives each water quantity information and each water quality information, the storage quantity of the corresponding drinking water is judged according to the water quantity information, and the service life of the corresponding filter element at present is judged according to the water quality information.
The Internet of things water purification system disclosed by the invention has the advantages that the remote management of the water purification devices is carried out through the cloud management device, so that the storage water quality and the filter element use state of the water purification devices can be monitored in real time, the current use state of the water purification devices can be known, when the water purification devices have problems, a dealer can know the problems through the cloud management device at the first time, and can send out maintenance personnel in real time to eliminate the problem of fixed obstacles, and all purposes are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a block diagram of an internet of things water purification system according to an embodiment of the present invention;
fig. 2 is a block diagram of a cloud processing unit of the internet of things water purification system of fig. 1;
fig. 3 is a block diagram of a client processing unit of the internet of things water purification system of fig. 1;
fig. 4 is a block diagram of a dealer-end processing unit of the internet of things water purification system of fig. 1;
fig. 5 is a schematic view of a client management device of the internet of things water purification system of fig. 1;
fig. 6 is another schematic diagram of a client management device of the internet of things water purification system of fig. 1; and
fig. 7 is a block diagram of a water purification system of the internet of things according to another embodiment of the invention.
Detailed Description
According to an embodiment of the present invention, as shown in fig. 1, the internet of things water purification system includes a plurality of water purification devices 1, a cloud management device 2, at least one client management device 3, and at least one dealer management device 4, wherein each of the water purification devices 1 includes at least one filter element 11, at least one water tank 12, at least one water amount sensing unit 13, a filter element sensing unit 14, and a water purification end wireless transmission unit 15, the filter element 11 is used for filtering tap water into drinking water and can be replaced when the filter element 11 is eliminated, the water tank 12 is used for storing the drinking water, the water amount sensing unit is correspondingly disposed in each of the water tanks 12 and is used for measuring the storage amount of each of the drinking water so as to generate a water amount information, the filter element sensing unit 14 is respectively disposed in each of the filter elements 11 and is used for measuring the storage amount of the filter element 11 before the tap water is filtered by the filter element 11, The water quality after that generates a water quality information, and the water purification end wireless transmission unit 14 is in signal connection with the water quantity sensing unit 13 and the filter element sensing unit 14 and is used for transmitting the water quantity information and the water quality information.
The cloud management device 2 comprises a cloud wireless transmission unit 21 and a cloud processing unit 22, the cloud wireless transmission unit 21 is in signal connection with the water purification end wireless transmission units 15 and is used for receiving the water quantity information and the water quality information, the cloud processing unit 22 is in signal connection with the cloud wireless transmission unit 21 and is used for receiving the water quantity information and the water quality information, judging the storage quantity of the corresponding drinking water according to the water quantity information and judging the current service life of the corresponding filter element 11 according to the water quality information.
Referring to fig. 2, the cloud processing unit 22 includes an equipment management module 221, a customer management module 222, a distributor management module 223, an inventory management module 224, an equipment recharging module 225, an order management module 226, a settlement management module 227 and a configuration management module 228, the equipment management module 221 is used for managing the water purifying device 1, wherein the water purifying device 1 has a unique identification code (ID), the equipment management module 221 manages the water purifying device according to the identification codes, the customer management module 222 is in signal connection with the equipment management module 221 and is used for a plurality of clients to perform identity binding according to the identification codes of the water purifying devices 1, the distributor management module 223 is in signal connection with the equipment management module 221 and is used for at least one distributor to perform management and maintenance of the water purifying device 1, the inventory management module 224 is in connection with the equipment management module 221, The customer management module 222 and the dealer management module 223 are connected by signals, and are used for storing the identification codes of the water purifying device and the information of the corresponding client.
The device side recharging module 225 is in signal connection with the device management module 221, the customer management module 222 and the dealer management module 223, and the client end charges a predetermined number of points, the order management module 226 is connected with the device management module 221, the client management module 222 and the dealer management module 223 by signals, and is used for receiving a replacement instruction for replacing the filter element 11 from the client, the settlement management module 227 is in signal connection with the order management module 226 and the equipment terminal recharging module 225, and is used for performing corresponding point settlement of the filter element 11 according to the replacement instruction and the corresponding point of the client, the configuration management module 228 is in signal connection with the order management module 226 and the equipment terminal recharging module 225, and is used for managing the filter element 11, the filter elements 11 have a specific set of models, and the configuration management module 228 performs management according to each model of the filter element 11.
The client management device 3 is exemplified by a smart phone in this example and respectively includes a client wireless transmission unit 31, a client processing unit 32 and a client display interface 33, the client wireless transmission unit 31 is in signal connection with the cloud wireless transmission unit 21 and is used for receiving information of each water quantity and information of each water quality, the client processing unit 32 is in signal connection with the client wireless transmission unit 31 and generates corresponding information of a stored water quantity and information of a filter element life according to the storage quantity of the water purification device 1 to which the client belongs and the current service life of the filter element, and the client display interface 33 is in signal connection with the client processing unit 32 and is used for displaying the information of the stored water quantity and the filter element life, wherein the water quantity information includes water full, water production, water shortage, raw water quality, water quality and the like.
Referring to fig. 3 and 4, the client processing unit 32 includes a client recharging module 321, a filter element information module 322, an order module 323, a repair module 324, a water module 325 and a personal information module 326, the client recharging module 321 is in signal connection with the device recharging module 225 and allows the affiliated client to recharge through the client recharging module 321, the filter element information module 322 is in signal connection with the configuration management module 228 and allows the affiliated client to obtain the service life information and model number of each filter element of the filter element 11 through the filter element information module 322 (also referring to fig. 5), the order module 323 is in signal connection with the client recharging module 321 and the filter element information module 322, when the client recharges through the client recharging module 321, a recharging order and a filter element order are generated by the order module 323, the repair module 324 is in signal connection with the device management module 221, the customer end outputs a repair instruction to the equipment management module 221 through the repair module 324 to inform the dealer end of managing and maintaining the water purifying device 1, the water utilization module 325 is used for the customer end to be in signal connection with the cloud processing unit 22 and obtain the corresponding water storage amount information of the water purifying device 1, and the personal information module 326 is in signal connection with the equipment end recharging module 225, the configuration management module 228 and the equipment management module 221 and is used for the customer end to obtain the corresponding related information.
The dealer end management device 4 is exemplified by a desktop computer, and includes a dealer end wireless transmission unit 41, a dealer end processing unit 42, and a dealer end display interface 43, respectively, the dealer end wireless transmission unit 41 is in signal connection with the cloud end wireless transmission unit 21 and is used for receiving each water quantity information and each water quality information, the dealer end processing unit 42 is in signal connection with the dealer end wireless transmission unit 41 and generates a corresponding set of statistical information according to the storage capacity of the water purification device belonging to the client and the current service life of the filter elements, and the dealer end display interface 43 is in signal connection with the dealer end processing unit 42 and is used for displaying the statistical information.
Referring to fig. 6, the dealer end processing unit 42 includes a message module 421, a client module 422, a statistic module 423 and a client data module 424, the message module 421 is in signal connection with the equipment management module 221, and the dealer end obtains identification codes and repair instructions of the water purifying device 1 of each client, the client module 422 is in signal connection with the equipment end recharging module 225, the order management module 226 and the inventory management module 224, and the dealer end obtains recharging orders and filter element orders, the statistic module 423 is in signal connection with the cloud end processing unit 22, and obtains the storage capacity of the corresponding water purifying device and the current service life of the filter element 11, so as to generate corresponding statistic information, and the client data module 424 is in signal connection with the inventory management module 224, and the dealer end obtains the information of the client.
As shown in fig. 7, the water purifying device 1 further includes a signal responder 16 contacting one of the filter elements 11 and generating a corresponding oscillation response according to one of a plurality of low-frequency driving signals, the cloud processing unit 22 further stores the low-frequency driving signal, and the client processing unit 32 includes a driving signal selection module 327 for connecting the client signal to the cloud processing unit 21, selecting and downloading one of the low-frequency driving signals stored by the cloud processing unit 22, downloading one of the low-frequency driving signals, and generating a corresponding oscillation response to the filter element 11 by the signal responder 16 according to the low-frequency driving signal selected by the client.
In addition, the client wireless transmission unit 31 and the water purification wireless transmission unit 15 can be connected to each other in a wireless signal manner, for example, through a wireless network (WiFi), so that the client can directly control the signal responder 16 to generate a corresponding oscillation response to the filter element 11 through the client management device 3.
Because each organ part of the human body can be conditioned by the energy oscillation corresponding to the normal waveform to normalize the organ, the low-frequency driving signals which are stored in the cloud processing unit 22 by the client and are respectively corresponding to different organ parts are selected, the low-frequency driving signal which is most needed by the client is selected and downloaded to the water purifying device 1, the selected low-frequency driving signal generates the corresponding oscillation response to the filter element 11 by the signal responder 16, and the oscillation energy can be transmitted to the filtered water when the filter element 11 filters the water, so that the organ of the client can be normalized after the client drinks the water with the energy oscillation.
In this embodiment, the signal responder 16 may include an oscillating unit and may generate a corresponding oscillating frequency to the filter element 11 according to the low-frequency driving signal, or the signal responder 16 may include a light-emitting unit and may generate a corresponding oscillating pulsed light to the filter element 11 according to the low-frequency driving signal.
The invention relates to an Internet of things water purification system, which is characterized in that remote management of a plurality of water purification devices is carried out through a cloud management device, a user at a client can carry out remote monitoring on the storage water quality of the water purification devices and the use state of a filter element through a smart phone to know the current use state of the water purification devices, when the water purification devices have problems, a repair instruction can be sent to a dealer end, the dealer can know the water quality through the cloud management device at the first time and immediately send out maintenance personnel to eliminate the problem of barrier fixation, in addition, a low-frequency driving signal can be generated to correspond to an oscillation response to the filter element, each organ part of a human body can be conditioned by the energy oscillation corresponding to a normal waveform and returns to normalization, and all purposes are achieved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (11)

1. The utility model provides a thing networking water purification system, its characterized in that, this thing networking water purification system includes a plurality of purifier and a high in the clouds management device:
these purifier includes an at least filter core, an at least water tank, an at least water yield induction element, an at least filter core induction element and a water purification end wireless transmission unit respectively, wherein:
the at least one filter element is used for filtering tap water into drinking water and can be replaced when the filter elements are eliminated;
the at least one water tank is used for storing the drinking water;
the at least one water quantity sensing unit is correspondingly arranged in each water tank and is used for measuring the storage quantity of the drinking water at present so as to respectively generate water quantity information;
the at least one filter element sensing unit is respectively and correspondingly arranged on each filter element and is used for measuring the water quality of the filter elements before and after the tap water is filtered so as to generate water quality information; and
the water purification end wireless transmission unit is in signal connection with the water quantity sensing unit and the filter element sensing unit and is used for transmitting the water quantity information and the water quality information; and
the cloud management device comprises a cloud wireless transmission unit and a cloud processing unit, wherein:
the cloud wireless transmission unit is in signal connection with each water purification end wireless transmission unit and is used for receiving each water quantity information and each water quality information; and
the cloud processing unit is in signal connection with the cloud wireless transmission unit, receives the water quantity information and the water quality information, judges the storage capacity of the corresponding drinking water according to the water quantity information, and judges the current service life of the corresponding filter elements according to the water quality information.
2. The thing networking water purification system of claim 1, wherein, this cloud processing unit includes:
the equipment management module is used for managing the water purifying devices, wherein the water purifying devices are respectively provided with a dedicated identification code, and the equipment management module is used for managing the water purifying devices according to the identification codes;
the client management module is in signal connection with the equipment management module and is used for a plurality of clients to bind identities according to the identification codes of the water purifying devices;
the distributor management module is in signal connection with the equipment management module and is used for at least one distributor end to manage and maintain the water purifying devices; and
and the inventory management module is in signal connection with the equipment management module, the client management module and the dealer management module and is used for storing the identification codes of the water purifying devices and the information of the corresponding clients.
3. The internet of things water purification system of claim 2, wherein the cloud processing unit further comprises:
the equipment terminal recharging module is in signal connection with the equipment management module, the customer management module and the dealer management module and is used for recharging a preset point number by the client terminals;
the order management module is in signal connection with the equipment management module, the client management module and the dealer management module and is used for receiving a replacement instruction for replacing the filter elements by the client sides;
a settlement management module in signal connection with the order management module and the equipment terminal recharging module for carrying out corresponding settlement of the filter cores according to the replacing instruction and the corresponding points of the client; and
and the configuration management module is in signal connection with the order management module and the equipment terminal recharging module and is used for managing the filter elements, wherein the filter elements are respectively provided with a specific model, and the configuration management module is used for managing according to the models of the filter elements.
4. The internet of things water purification system of claim 3, further comprising a client management device, comprising:
the client wireless transmission unit is in signal connection with the cloud wireless transmission unit and is used for receiving the water quantity information and the water quality information;
the client processing unit is in signal connection with the client wireless transmission unit and generates corresponding stored water quantity information and filter element service life information according to the storage quantity of the water purifying device to which the client belongs and the current service life of the filter elements; and
a client display interface connected with the client processing unit for displaying the water storage quantity information and the filter element life information.
5. The Internet of things water purification system of claim 4, wherein the client processing unit comprises:
the client recharging module is in signal connection with the equipment terminal recharging module and is used for recharging the affiliated client through the client recharging module;
the filter element information module is in signal connection with the configuration management module and is used for the client side to obtain the service life information and the model of each filter element of the filter elements through the filter element information module;
an order module in signal connection with the client recharging module and the filter element information module, wherein when the client recharges through the client recharging module, the order module generates a recharging order and a filter element order;
the repair module is in signal connection with the equipment management module and is used for the client side to output a repair instruction to the equipment management module through the repair module so as to inform the dealer sides to manage and maintain the water purifying devices;
the water utilization module is used for connecting the client side signal to the cloud processing unit and acquiring the corresponding stored water quantity information of the water purifying device; and
and the personal information module is in signal connection with the equipment terminal recharging module, the configuration management module and the equipment management module and is used for the affiliated client terminal to obtain corresponding related information.
6. The internet of things water purification system of claim 5, further comprising a dealer-side management device, each comprising:
the distributor-side wireless transmission unit is in signal connection with the cloud-side wireless transmission unit and is used for receiving the water quantity information and the water quality information; and
the dealer end processing unit is in signal connection with the dealer end wireless transmission unit and generates a corresponding group of statistical information according to the storage capacity of the water purifying device to which the client belongs and the current service life of the filter elements; and
a dealer end display interface, which is connected with the dealer end processing unit by signal and is used to display the statistical information.
7. The internet of things water purification system of claim 6, wherein the dealer end processing unit comprises:
the information module is in signal connection with the equipment management module and is used for the dealer to obtain the identification codes and the repair instructions of the water purifying devices of the client;
the client module is in signal connection with the equipment terminal recharging module, the order management module and the inventory management module and is used for the dealer terminal to obtain the recharging order and the filter element order;
the system comprises a cloud processing unit, a statistic module, a storage module and a storage module, wherein the cloud processing unit is used for receiving a signal from a distributor and obtaining the storage capacity of the corresponding water purifying device and the current service life of the filter elements so as to generate corresponding group statistic information; and
a client data module connected with the inventory management module in signal connection and used for the dealer end to obtain the information of the clients.
8. The internet of things water purification system of claim 4, wherein the water purification device further comprises a signal responder, and the signal responder is in contact with one of the filter elements and generates a corresponding oscillation response according to one of the low-cycle driving signals; wherein the cloud processing unit is further used for storing the low-frequency driving signals; the client processing unit comprises a driving signal selection module, the client processing unit is used for connecting the client signal to the cloud processing unit, selecting one of the low-cycle driving signals and downloading the selected low-cycle driving signal, and the signal responder generates a corresponding oscillation response to the filter element according to the low-cycle driving signal selected by the client.
9. The internet of things water purification system of claim 8, wherein the client wireless transmission unit is in signal connection with the water purification wireless transmission unit, and the client management device is used for driving the signal responder by the client far end.
10. The internet of things water purification system of claim 8, wherein the signal responder comprises an oscillation unit, and the oscillation unit generates a corresponding oscillation frequency according to the low-frequency driving signal.
11. The internet of things water purification system of claim 8, wherein the signal responder comprises a light emitting unit, and the light emitting unit generates corresponding oscillating pulsed light according to the low-cycle driving signal.
CN201910555157.3A 2018-10-09 2019-06-25 Thing networking water purification system Pending CN111018009A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2018216326086 2018-10-09
CN201821632608 2018-10-09

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CN111018009A true CN111018009A (en) 2020-04-17

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CN201910555157.3A Pending CN111018009A (en) 2018-10-09 2019-06-25 Thing networking water purification system

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106539677A (en) * 2016-12-06 2017-03-29 何君毅 The low frequency physiology adjustment system of Frequency Adjustable
US20170318360A1 (en) * 2016-05-02 2017-11-02 Bao Tran Smart device
CN107909167A (en) * 2017-12-25 2018-04-13 郑州跃龙电子科技有限公司 A kind of water purifier sale and maintaining-managing system based on Internet of Things
CN107942886A (en) * 2017-12-25 2018-04-20 郑州跃龙电子科技有限公司 A kind of water purifier user terminal based on Internet of Things

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170318360A1 (en) * 2016-05-02 2017-11-02 Bao Tran Smart device
CN106539677A (en) * 2016-12-06 2017-03-29 何君毅 The low frequency physiology adjustment system of Frequency Adjustable
CN107909167A (en) * 2017-12-25 2018-04-13 郑州跃龙电子科技有限公司 A kind of water purifier sale and maintaining-managing system based on Internet of Things
CN107942886A (en) * 2017-12-25 2018-04-20 郑州跃龙电子科技有限公司 A kind of water purifier user terminal based on Internet of Things

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Application publication date: 20200417

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