CN1987180A - Diaphragm intelligent valve system - Google Patents
Diaphragm intelligent valve system Download PDFInfo
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- CN1987180A CN1987180A CNA2006101665065A CN200610166506A CN1987180A CN 1987180 A CN1987180 A CN 1987180A CN A2006101665065 A CNA2006101665065 A CN A2006101665065A CN 200610166506 A CN200610166506 A CN 200610166506A CN 1987180 A CN1987180 A CN 1987180A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
A water-saving diaphragm-type intelligent valve system features that its diaphragm-type valve flap is controlled by the pressure of fluid itself. It is composed of computer, IC card R/W device, several intelligent valves, user's IC cards and manager's IC cards.
Description
Technical field
The present invention relates to a kind of valving, relate in particular to a kind of energy-saving and water-saving IC-card intelligent control valve door device that utilizes the principle realization barrier film flap switch of the pressure of liquid own.
Background technique
China is the country of a serious water shortage, is the world one of few 13 poor-water states of water resources per capita.The water yield is less than 2000 cubic metres per capita, and international community is referred to as the serious water shortage edge.In the per capita water yield of state-owned 9 provinces (city, district) be 500 cubic metres.In 600 cities of China nearly 400 of lack of water, serious water shortage have 108.China's water resources is very uneven on the area distributes: the gross amount of water resources of northern the Yellow River, Huaihe River, Haihe River three large watersheds only accounts for 7.5% of the whole nation; The Northwest particularly, water resources is poor more, and the average water yield only accounts for 1/4 of national average.And worker, agricultural water amount are very big, and water-use efficiency is low, and wasting phenomena is very serious.In existing more than 400 ten thousand motor-pumped wells of China, the underground water of most of motor-pumped well has been taken out to such an extent that seriously surpassed below the warning line.So using water wisely, raising water management level, protection water resources have become a current great strategic task of China.
At present, the equipment of water-saving irrigation both at home and abroad mainly contains devices such as low pressure pipe irrigation, sprinkling irrigation and slight irrigation, and seldom at the product of rural area water-saving irrigation, the membrane valve that gageable changeable water supply controller adopts solenoid valve basically and controlled by mechanical structure, energy consumption is excessive, what have must use ac power supply, and control in real time is also relatively backward with management aspect, and cost is higher.
Summary of the invention
The invention provides a kind of diaphragm intelligent valve system, promptly utilize the IC-card intelligent control valve door system of the principle realization barrier film flap switch of the pressure of liquid own, be intended to overcome the shortcoming and defect that prior art exists, satisfy and implement requirement flexible, energy-saving and water-saving.
In order to achieve the above object, the present invention mainly comprises:
(1) designs and makes a kind of membrane valve;
(2) designing and make a kind of is the acquisition control circuit of core with the single-chip microcomputer;
(4) system for writing and compiling application software.
The present invention has adopted IC-card read-write technology, has realized the requirement of " purchasing water, back water, whose water, whose paying earlier "; But a covering device multi-user uses, and its water information also can be sent to upper-position unit by special-purpose IC-card and handle and realize the network water management, has demonstrated fully " grasps lighter, manage more effective, more convenient operation " humanization design concept.
Specifically, as Fig. 1, the present invention includes host computer 100, IC-card read write line 200, smart valve 300, user's IC-card 400 and caretaker's IC-card 500;
Host computer 100 is connected with IC-card read write line 200, and IC-card read write line 200 is connected with N smart valve 300 respectively, and each smart valve 300 is connected with caretaker's IC-card with N user's IC-card respectively;
As Fig. 2, smart valve 300 comprises sender water meter 310, ECU (Electrical Control Unit) 320 and the membrane valve 330 that connects successively;
Described sender water meter 310 is a kind of dismountable water wheel type water meters;
Described ECU (Electrical Control Unit) 320 be a kind of be the acquisition control circuit of core with the single-chip microcomputer;
Described membrane valve 330 is a kind of water supply valves of realizing its valve switch by the barrier film flap.
Working principle of the present invention is:
User's IC-card 400 is supplemented with money on host computer 100 by IC-card read write line 200, the water of swiping the card on smart valve 300 consumption; Caretaker's personality card 500 can be for further processing for smart valve 300 is provided with correlation coefficient and the user's water information in the smart valve 300 is uploaded to host computer 100.A host computer 100 can be managed hundreds of smart valve 300, and each smart valve 300 can be used for a plurality of users 400.
After user's IC-card 400 was swiped the card, ECU (Electrical Control Unit) 320 opened from blocking set the purchasing of deduction user that membrane valve 330 discharges water and begin metering by sender water meter 310 after the water yield, when reaching it and purchase the water yield, will close membrane valve 330 and stop supplying water.
The present invention has following advantage and good effect:
1, adopted that to rely on the pressure of water body own be the membrane valve of active force, have energy saving, water distribution quantitatively accurately, charge accurately, control characteristics flexible, simple to operate, easy to maintenance.
2, be specially adapted to the water supply control at the pressure conduit place of AC-less power, charge in batteries once can be worked about 4 years; As at the high-line conduit place that ac power supply is arranged, can open simultaneously or switch off the pump unit and valve be realized the control of supplying water.
3, a smart valve 300 can have a plurality of user's IC-cards 400 to realize bankcard consumption, and its user's water information can be sent to host computer 100 by caretaker's IC-card 500 and further manage.
4, the present invention not only can be widely used in irrigated area, rural area (include power supply or power free field motor-pumped well, intakes such as the water distributing network of pressure, hydrant are arranged), and can also be used for industry and wait other field, have vast market prospect, have very big social benefit, environmental benefit and economic benefit.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the smart valve structured flowchart;
Fig. 3 is that the membrane valve valve closes the working principle schematic representation;
Fig. 4 is that the membrane valve valve goes into operation and makes principle schematic;
Fig. 5 is a membrane valve flap structural drawing;
Fig. 6 is the ECU (Electrical Control Unit) circuit theory diagrams;
Fig. 7 is the smart valve workflow diagram;
Fig. 8 is smart valve manage workflow figure.
Wherein:
The 100-host computer;
The 200-IC card reader;
The 300-smart valve,
310-sender water meter,
The 320-ECU (Electrical Control Unit),
The 321-single-chip microcomputer, the 322-memory circuit,
323-IC card read-write cell, 324-clock/calendar chip,
The 325-liquid crystal display, the 326-function key,
Sampling of 327-pulse signal and processing circuit,
328-battery voltage monitoring device, the 329-drive circuit;
The 330-membrane valve,
331-the 1st pilot solenoid valve, 332-the 2nd pilot solenoid valve,
333-tubule road, the 334-tap hole,
335-flap chamber, the 336-flap,
The 337-valve body, 338-flap chamber lid;
400-user's IC-card;
500-caretaker IC-card.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
One, main function components
1, membrane valve 330
As Fig. 3, Fig. 4, Fig. 5, membrane valve 330 is made up of the 1st pilot solenoid valve the 331, the 2nd pilot solenoid valve 332, tubule road 333, tap hole 334, flap chamber 335, flap 336, valve body 337, flap chamber lid 338;
Its annexation is: as Fig. 3 or Fig. 4, valve body 337 is sprues, and the flap chamber 335 of its outlet end is valve, and flap 336 is fixed in the flap chamber 335; The 1st pilot solenoid valve 331 and the 2nd pilot solenoid valve 332 are received on two tap holes 334 of valve body 337 and flap chamber lid 338 by tubule road 333 respectively, control the state that the 1st pilot solenoid valve 331 and the 2nd pilot solenoid valve 332 open and close and further to control the shape that flap 336 upwards turns over or restore downwards, thereby realize opening or closing of valve.
Described the 1st pilot solenoid valve 331 is a kind of 22 logical pulsed self-holding electromagnetic valves, and the pulse signal by 5V and 300mA can make its valve switch, is the critical component of system.
Described the 2nd pilot solenoid valve 332 is identical with the 1st pilot solenoid valve 331 structures.
Described tubule road 333 is pressure-resistant plastic flexible pipes of a kind of standard, by supporting modular connection the 1st pilot solenoid valve the 331, the 2nd pilot solenoid valve 332 is linked to each other with tap hole 334.
Described tap hole 334 is a kind of threaded holes on valve body 337 and flap chamber lid 338 of opening, and links to each other with the 1st pilot solenoid valve the 331, the 2nd pilot solenoid valve 332 with tubule road 333, and purpose is by the distribution of pressure being controlled the on off state of flap 336.
Described flap chamber 335 is working spaces of flap 336, and the state of flap 336 in flap chamber 335 determines the Kai Heguan of its valve.
Described flap 336 is a kind of rubber lobes that valve is opened or closed, throttle down when reset condition, and Open valve during the stress deformation of front is the critical component of system.
Working principle:
As Fig. 3, when in the membrane valve 330 hydraulic pressure being arranged, open under the state that closes with the 2nd pilot solenoid valve 332 at the 1st pilot solenoid valve 331, hydraulic pressure is entered the concave surface of flap chamber 335 compressing flaps 336 by control tubule road 333 by tap hole 334, add the elastic force of rubber flap 336 original forms, it is made a concerted effort greater than the pressure of water in the valve body to flap 336 convex surfaces, thereby makes flap 336 bar up valve downwards.
As Fig. 4, open under the state that closes with the 1st pilot solenoid valve 331 at the 2nd pilot solenoid valve 332, the pressure of the interior water of valve body is made a concerted effort greater than atmospheric pressure in the flap chamber 335 and flap 336 deformation forces, force flap upwards to turn over, water in the flap chamber 335 is discharged the valve open water delivery by tap hole 334 by control tubule road 333.
As Fig. 3, Fig. 4, Fig. 5, valve body 337 and flap chamber lid 338 are ironcasting; Flap 336 is made by rubber.
2, ECU (Electrical Control Unit) 320
As Fig. 2, Fig. 6, ECU (Electrical Control Unit) 320 comprises single-chip microcomputer 321 and the memory circuit 322 that is connected with single-chip microcomputer 321 respectively, IC-card and read-write cell 323, clock/calendar chip 324, liquid crystal display 325, function key 326, pulse signal is taken a sample and processing circuit 327, battery voltage monitoring device 328, Leading valve drive circuit 329 are formed.
1) single-chip microcomputer 321
Single-chip microcomputer 321 is cores of system, the PIC16F876 that selects for use, have low power consumption, low-work voltage, anti-interference strong, high-performance, high-speed, easy programming, very strong characteristics such as the direct driving force of pin, design chips realizes data transmission with form and the peripheral circuit of I2C, when system is in state of dormancy, the about 3uA of power consumption.
2) memory circuit 322
Memory circuit 322 select for use 24C16 store IC-card password, user name, purchase related datas such as the water yield, water consumption, accumulative total water consumption.
3) IC-card and read-write cell 323
IC-card and read-write cell 323 are selected WM11T6 type IC-card read-write chip for use, can carry out read and write to the IC-card (the 1K byte has unique sequence number) of general PHILIPS.
4) clock/calendar chip 324
Clock/calendar chip 324 is selected the clock source of DS1302 clock/calendar chip as system for use.
5) liquid crystal display circuit 325
Liquid crystal display circuit 325 is selected QY204 type special liquid crystal display modular for use, can show: the amount of purchasing, surplus, accumulative total, switch, card mistake, please purchase data and informations such as water, time.
6) function key 326
Only be provided with 3 function keys 326 and can satisfy the use needs.
7) pulse signal sampling and processing circuit 327
This valve comes the water measurement amount with the water wheel type water meter 310 of band signal transmitter, pulse signal sampling receives the pulse signal that sender water meters 310 send with processing circuit 327, handles and draw real-time water consumption after converting through 2 scmitt trigger circuit 40106 filtering and software.
8) the battery voltage monitoring device 328
Battery voltage monitoring device 328 selects for use the HT7044 voltage checking chip that cell voltage is monitored in real time.When cell voltage was lower than the protection value, this chip sent signal to single-chip microcomputer 321, and single-chip microcomputer 321 can produce and interrupt preserving critical data.
9) the Leading valve drive circuit 329
Leading valve drive circuit 329 comes the control valve synchronization motion by the polarity that the AE2501 driving chip changes pulsed voltage on the 1st pilot solenoid valve 331 and 332 two 2/2-way self-holding electromagnetic valves of the 2nd pilot solenoid valve coil, thereby control the flow direction of water in this pilot valve, utilize the pressure of water in the pipeline itself to open and close the barrier film valve.As Fig. 7, the polarity of the 1st pilot solenoid valve 331 and the 2nd pilot solenoid valve 332 coils is anti-phase, and purpose is to make the on off state of the 1st pilot solenoid valve 331 and the 2nd pilot solenoid valve 332 valves just in time opposite.
10) water pump assembly motor-drive circuit
As carrying out water delivery by water pump assembly as power, there is ac power supply at the dry point place, and this smart valve then can utilize Ac as working power.The water pump assembly motor-drive circuit is made up of scmitt trigger circuit 40106 (U4), photo coupler PC817 (U13) and triode 2SC8050 (Q4) and components such as relay HG4123 (L1) and AC-DC voltage stabilizer, and the break-make of circuit may command three-phase ac contactor (L2) realizes opening of motor and stops.The driving function that in the control of pump unit, still keeps Leading valve.
11) emulation interface circuit
This circuit design emulation interface (J8), make the system can the online programming artificial debugging, this is convenient to the systems soft ware function upgrading with extremely.
Two, single-chip microcomputer 321 application programs
Single-chip microcomputer 321 adopts the C language to write on PC, the executable assembler directive of existence single-chip microcomputer PIC16F876 behind mcu programming emulsification editor, PIC16F876 can be inserted on the programming simulation device and directly program be write, also can program be write in the chip by the emulation interface of smart valve circuit, this extremely is convenient to software upgrading and field adjustable.
Three, smart valve workflow
1, to user's IC-card
As Fig. 7, after step 01 powers on, the initialization of step 02 single-chip microcomputer, step 03 enters 04 economize on electricity state of dormancy after by self check.Self check has problem, and step 39 fault shows.
Step 15 is swiped the card in IC-card read write line sensitive area, step 16 as nothing operation in 15 seconds, and program enters step 04 single-chip microcomputer and enters the economize on electricity state of dormancy immediately after the zero clearing of step 38 timer.Swipe the card, step 17 single-chip microcomputer Card Reader, step 18 single-chip microcomputer is examined IC-card password and card number, and step 19 is not system's IC-card, and demonstration " wrong card " and prompting are swiped the card again, and program step gets back to 15.System user IC-card in this way, step 20 single-chip microcomputer at first judge whether it is the prompt " B " of inquiry surplus operation, are, step 21 reads on the card data and shows the last water yield, and step 22 is the single-chip microcomputer dormancy after 15 seconds.As not being query function, item judge whether this card has the record that stops to supply water because of accident, has in step 23, step 24 a compensation water yield of owing enters step 31 then; As the record that accident free stops to supply water, step 25 is judged the surplus on the IC-card, not enough 1m
3, step 26 prompting " please purchase water " (supplementing with money), step 27 timer is clear 0, step 16 as no longer swipe the card in 15 seconds, program at step 04 single-chip microcomputer with dormancy.Surplus on step 28 as the card is greater than 1m
3Less than the amount of purchasing that is provided with, step 29 is calculated by the surplus on the card and is supplied water, otherwise step 30 item supplies water 30 by the required water yield of purchasing is set; Step 31 is after finishing above-mentioned work, show the margin value after deduction on the IC-card is purchased the water yield, what moments later show this again purchases water yield value, step 32 control gear sends the signal enabling pumping plant (as the dry pump device, this invalidating signal) and start that pilot solenoid valve 2 is opened and pilot solenoid valve 1 closes, membrane valve is opened and is discharged water, step 33 single-chip microcomputer is gathered the water meter signal, step 34 is as water meter (can be provided with) no signal output in 5 seconds, step 40 is as fault, single-chip microcomputer cuts out recording events water supply and enters the single-chip microcomputer electricity-saving state of dormancy by clear 0 back of step 38 timer to step 04.As water meter signal is arranged, step 35 single-chip microcomputer is gathered water meter signal, timing, calculating, and step 36 single-chip microcomputer is judged water output always, and step 37 is worked as water yield value and counted down to " 0m
3" time, switch off the pump automatically device (as the dry pump device, this invalidating signal) and start that pilot solenoid valve 1 is opened and pilot solenoid valve 2 closes of control gear; membrane valve is closed; stop supplying water, after related data was handled, program was got back to step 04 single-chip microcomputer and entered the economize on electricity state of dormancy immediately.
Swipe the card successfully, buzzer sends " toot " sound, and the failure of swiping the card shows " mistake " and " swiping the card ".
Smart valve also has the function that the artificial termination of user discharges water, and artificial termination discharges water and stops to supply water to this user's IC-card compensation water yield of owing by accident.
2, to the special-purpose IC-card of caretaker
High rights management person can be that the smart valve of being administered is created special-purpose IC-card on upper-position unit, with this card can to smart valve be provided with relevant parameter and with each user's water information of smart valve (information comprise the user total with last 5 times water consumption and time etc.) be then written to host computer after reading.
As Fig. 8, after step 01 powers on, the initialization of step 02 single-chip microcomputer, step 03 enters 04 economize on electricity state of dormancy after by self check.Self check has problem, and step 24 fault shows.
As pressed [affirmation] key, and step 12 is swiped the card prompting, and step 13 waits for and swiping the card that step 14 did not reach for 15 seconds as not swiping the card, and program enters the economize on electricity state of dormancy by step 23 and step 04 single-chip microcomputer.
After swiping the card in IC-card read write line sensitive area, step 15 single-chip microcomputer Card Reader, step 16 is examined IC-card password and card number, is not system's IC-card, and step 17 shows " wrong card " and points out and swipe the card again that program is got back to step 13; Be system's IC-card, whether step 18 declares subscriber card again, is subscriber card, and step 19 is carried out the subscriber card function; The special-purpose IC-card of system manager in this way, step 20 system allows the caretaker to carry out the operation that time, clock, the output of water meter pulse-free signal allow parameter setting such as maximum duration and reads user's water information, storage clear 0 and report the loss IC-card with keyboard.Do not have any operation for another example in 15 seconds behind the step 22 caretaker button, program enters the economize on electricity state of dormancy by step 23 and step 04 single-chip microcomputer.
The caretaker with the process that keyboard carries out specific operation is in step 20: at first be to show the date, make amendment by [] and [▲] key, by [affirmation] finish after read clock, can revise Hour Minute Second by [] and [▲] key, display water-meter pulse-free signal output permission maximum duration (second) again after finishing by [affirmations], can be according to actual conditions by the adjustment of [▲] key, press and show " read " after [affirmation] finished, by swiping the card after [affirmation], being about to the interior user's water information of this smart valve reads in the IC-card, as then skipping the information of reading by [] key, show then " clr ", with user's water information zero clearing in this smart valve, then skip clear operation by [affirmation] as pressing [] key; Enter at last and report the loss operation, show " del ", select Customs Assigned Number by [▲] key, the IC-card of losing by this user after [affirmations] can not effectively use again, as pressing then skip operations of [] key, as not have any operation and will reach 15 seconds, and single-chip microcomputer enters the economize on electricity state of dormancy.
Finish per step operation, the buzzer of smart valve sends " toot " sound.Swipe the card and read the information failure, show " mistake " and " swiping the card " that prompting is operation again.
Four, upper-position unit Functions of Management System
1, sets up files on each of customers (opening an account)
Subscriber card of every granting needs to set up the archives relevant with this card user, and content comprises: arrange in numerical order, sell water limit etc. in user name, location, contact method, hair fastener time, water supply point smart valve numbering, the valve.
2, sell the management of water charge (supplementing with money)
Automatically carry out the trapezoidal water management of purchasing, charge into the water yield of purchasing in the rear line card of paying dues, the information input database.
3, the management of water situation
The caretaker can write the database of native system by the IC-card read write line of upper-position unit with each user's water situation of each smart valve with special-purpose IC-card, to realize unified management.
4, statistics and inquiry
At any time inquiring user purchase data such as regimen condition, water situation, surplus water, and it is added up into table.Form and purchase the water voucher can printout.
5, subscriber card is reported the loss
When the user loses IC-card accidentally, can report the loss operation.This management software recorded data can be returned to this user with least disadvantage with the surplus water of losing in the IC-card, can allow simultaneously report the loss card use inefficacy.
Claims (3)
1, a kind of diaphragm intelligent valve system is characterized in that:
Comprise host computer (100), IC-card read write line (200), smart valve (300), user's IC-card (400) and caretaker's IC-card (500); Host computer (100) is connected with IC-card read write line (200), and IC-card read write line (200) is connected with some smart valve (300), and each smart valve (300) is connected with some user's IC-cards (400) and caretaker's IC-card (500) respectively;
Smart valve (300) comprises sender water meter (310), ECU (Electrical Control Unit) (320) and membrane valve (330);
Described sender water meter (310) is a kind of dismountable water wheel type water meter;
Described ECU (Electrical Control Unit) (320) be a kind of be the acquisition control circuit of core with the single-chip microcomputer;
Described membrane valve (330) is a kind of water supply valve of realizing its valve switch by the barrier film flap;
After user's IC-card (400) was swiped the card, ECU (Electrical Control Unit) (320) opened from blocking set the purchasing of deduction user that membrane valve (330) discharges water and begin metering by sender water meter (310) after the water yield, when reaching it and purchase the water yield, closed membrane valve (330) and stopped water supply.
2, by the described a kind of diaphragm intelligent valve system of claim 1, it is characterized in that:
Membrane valve (330) is made up of the 1st pilot solenoid valve (331), the 2nd pilot solenoid valve (332), tubule road (333), tap hole (334), flap chamber (335), flap (336), valve body (337), flap chamber lid (338);
Valve body (337) is a sprue, and the flap chamber (335) of its outlet end is valve, and flap (336) is fixed in the flap chamber (335); The 1st pilot solenoid valve (331) and the 2nd pilot solenoid valve (332) are received on two tap holes (334) of valve body (337) and flap chamber lid (338) by tubule road (333) respectively;
Described the 1st, the 2nd pilot solenoid valve (331,332) is a kind of 22 logical pulsed self-holding electromagnetic valves;
Described tubule road (333) is a kind of pressure-resistant plastic flexible pipe of standard, by supporting modular connection the 1st, the 2nd pilot solenoid valve (331,332) is linked to each other with tap hole (334);
Described tap hole (334) is that a kind of opening at valve body (337) and flap chamber lid (338) gone up threaded hole;
Described flap chamber (335) is the working space of flap (336);
Described flap (336) is a kind of rubber lobe that valve is opened or closed.
3, by the described a kind of diaphragm intelligent valve system of claim 1, it is characterized in that:
ECU (Electrical Control Unit) (320) comprises single-chip microcomputer (321) and the memory circuit (322) that is connected with single-chip microcomputer (321) respectively, IC-card and read-write cell (323), clock/calendar chip (324), liquid crystal display circuit (325), function key (326), pulse signal is taken a sample and processing circuit (327), battery voltage detection circuit (328), Leading valve drive circuit (329) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101665065A CN1987180A (en) | 2006-12-27 | 2006-12-27 | Diaphragm intelligent valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101665065A CN1987180A (en) | 2006-12-27 | 2006-12-27 | Diaphragm intelligent valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987180A true CN1987180A (en) | 2007-06-27 |
Family
ID=38184076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101665065A Pending CN1987180A (en) | 2006-12-27 | 2006-12-27 | Diaphragm intelligent valve system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1987180A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836573A (en) * | 2010-03-30 | 2010-09-22 | 青岛恒讯水利科技发展有限公司 | System and method for farmland intelligent-control water distribution management |
| CN104429836A (en) * | 2014-12-16 | 2015-03-25 | 山东省水利科学研究院 | Low power irrigation valve meter and control device, control system and control method |
| CN104518879A (en) * | 2014-12-15 | 2015-04-15 | 国家电网公司 | Method for transferring user information in common instrument |
| CN104573466A (en) * | 2014-12-15 | 2015-04-29 | 国家电网公司 | Identity authentication authority setting system for card-reading type public instrument |
| CN104573762A (en) * | 2014-12-15 | 2015-04-29 | 国家电网公司 | Identification method for logically encrypted card for prepayment meter |
| CN105613220A (en) * | 2015-12-30 | 2016-06-01 | 中国农业科学院农业资源与农业区划研究所 | Quantitative-irrigation control system |
| CN110164044A (en) * | 2019-05-21 | 2019-08-23 | 郑州跃龙电子科技有限公司 | A kind of water purification sale apparatus based on Internet of Things |
| CN110260939A (en) * | 2019-07-26 | 2019-09-20 | 山东汘沄智能科技有限公司 | A kind of intelligent telemetering water meter control circuit based on ultrasonic wave and NB-IOT |
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- 2006-12-27 CN CNA2006101665065A patent/CN1987180A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836573A (en) * | 2010-03-30 | 2010-09-22 | 青岛恒讯水利科技发展有限公司 | System and method for farmland intelligent-control water distribution management |
| CN104518879A (en) * | 2014-12-15 | 2015-04-15 | 国家电网公司 | Method for transferring user information in common instrument |
| CN104573466A (en) * | 2014-12-15 | 2015-04-29 | 国家电网公司 | Identity authentication authority setting system for card-reading type public instrument |
| CN104573762A (en) * | 2014-12-15 | 2015-04-29 | 国家电网公司 | Identification method for logically encrypted card for prepayment meter |
| CN104573762B (en) * | 2014-12-15 | 2017-12-22 | 国家电网公司 | A kind of recognition methods of prepayment meter logic encryption card |
| CN104518879B (en) * | 2014-12-15 | 2018-04-06 | 国家电网公司 | A kind of method of user profile in transfer utility meter |
| CN104429836A (en) * | 2014-12-16 | 2015-03-25 | 山东省水利科学研究院 | Low power irrigation valve meter and control device, control system and control method |
| CN104429836B (en) * | 2014-12-16 | 2017-04-26 | 山东省水利科学研究院 | Low power irrigation valve meter and control device, control system and control method |
| CN105613220A (en) * | 2015-12-30 | 2016-06-01 | 中国农业科学院农业资源与农业区划研究所 | Quantitative-irrigation control system |
| CN110164044A (en) * | 2019-05-21 | 2019-08-23 | 郑州跃龙电子科技有限公司 | A kind of water purification sale apparatus based on Internet of Things |
| CN110164044B (en) * | 2019-05-21 | 2024-02-09 | 郑州跃龙电子科技有限公司 | Water purification selling device based on Internet of things |
| CN110260939A (en) * | 2019-07-26 | 2019-09-20 | 山东汘沄智能科技有限公司 | A kind of intelligent telemetering water meter control circuit based on ultrasonic wave and NB-IOT |
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