CN103985197A - Prepaid intelligent water meter system - Google Patents
Prepaid intelligent water meter system Download PDFInfo
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- CN103985197A CN103985197A CN201410159188.4A CN201410159188A CN103985197A CN 103985197 A CN103985197 A CN 103985197A CN 201410159188 A CN201410159188 A CN 201410159188A CN 103985197 A CN103985197 A CN 103985197A
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Abstract
The invention belongs to the technical field of intelligent water meters, and particularly relates to a prepaid intelligent water meter system, which comprises a metering basic meter, a water meter shell and a flow sensor, wherein the water meter shell is provided with a water inlet and a water outlet, the flow sensor is arranged in the center of the flow passage in the water meter shell, the water meter shell is arranged on the periphery of the metering basic meter, the output end of the flow sensor is connected with the input end of a chip, the output ends of the chip are respectively connected with a valve control module and a liquid crystal display module, the output end of a radio frequency read-write module is connected with the input end of an Internet of Things information security module, and the chip carries out two-way communication with the Internet of Things information security module. Compared with the prior art, the invention thoroughly reduces the power consumption of the entire intelligent water meter system by designing the low-power-consumption chip and optimizing the liquid crystal display module and other optimizable parts in the entire intelligent water meter system, thus enhancing the stability of the system, greatly reducing maintenance cost, maintaining the use experience of users and providing a direction for the further development of intelligent water meters.
Description
Technical field
The invention belongs to intellectual water meter technical field, more particularly, the present invention relates to a kind of prepayment intelligent water meter system of low-power consumption.
Background technology
Water meter is the instrument of measuring discharge.Traditional water meter adopts mechanical metering and flow indication mode mostly, and water supply department is in order to collect water rate, needs the data on flows that shows on the regular copy reading water meter from door to door of meter reading personnel, clears out after expense, then asks for to each family or make each user go to bank to pay dues.This traditional water rate collection methods statistical work amount is large, and error is large, usually can run into that user does not pay, late payment or leakage pay the problems such as water rate, has also brought to register one's residence to disturb residents, register one's residence difficulty and unsafe factor etc. simultaneously.
In this case, intellectual water meter arises at the historic moment, and intellectual water meter is a kind of new water meter that utilizes modern microelectric technique, Modern Transducer Technology, intellective IC card technology water consumption to be measured and carried out the transmission of water data and settlement bargain.Intellectual water meter except can to water consumption record and electronical display, can also according to agreement control water consumption.Intellectual water meter is generally divided into remote transmitting water meter and intelligent card type water meter.Wherein, after intelligent card type water meter employing post-pay paystation, the management mode of water, effectively solved charging problem, and it also has the plurality of advantages such as the convenience of end user's transparency, user's property participated in directly and installation.
But the power consumption of current intelligent card type water meter is higher, this just brings the adverse effect of two aspects: the one, and affect the reliability of chip and then affect the accuracy of intellectual water meter; The 2nd, power consumption directly determines stand-by time or the continuous working period of intellectual water meter.Existing intellectual water meter uses common batteries power supply only can maintain the normal work of 1-2, and needs extra mu balanced circuit and built-in lithium battery.The stability that this had both reduced system, has increased maintenance cost, has restricted again the expansion of function simultaneously, has reduced the superiority of intellectual water meter, has destroyed user's use impression, becomes the bottleneck that intellectual water meter is universal and develop.
In view of this, the necessary prepayment intelligent water meter system that a kind of low-power consumption is provided.
Summary of the invention
The object of the invention is to: for the deficiencies in the prior art, and provide a kind of prepayment intelligent water meter system of low-power consumption.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of prepayment intelligent water meter system, comprise metering base table, with the water meter case of water inlet and water delivering orifice, and be arranged at the flow sensor at described water meter case inner flow passage center, described water meter case is arranged at described metering base table periphery, this intellectual water meter system also comprises chip, battery, valve control module, Internet of Things information security module, radio frequency module for reading and writing and LCD MODULE, the output terminal of described flow sensor is connected with the input end of described chip, the output terminal of described chip is connected with described valve control module and described LCD MODULE respectively, the output terminal of described radio frequency module for reading and writing is connected with the input end of described Internet of Things information security module, described chip and described Internet of Things information security module both-way communication, described battery respectively with described valve control module, described chip, described Internet of Things information security module, described LCD MODULE is connected with described radio frequency module for reading and writing.
One as prepayment intelligent water meter system of the present invention is improved, described chip comprises analog module, waveform changing circuit module and digital circuit blocks, and the input end of described waveform changing circuit module is connected with the output terminal of described analog module and the input end of described digital circuit blocks respectively with output terminal.
One as prepayment intelligent water meter system of the present invention is improved, described analog module comprises low noise amplifier and bandpass filter, the output terminal of described low noise amplifier is connected with the input end of described bandpass filter, and the output terminal of described bandpass filter is connected with the input end of described waveform changing circuit module.
One as prepayment intelligent water meter system of the present invention is improved, and described low noise amplifier is set to the low noise amplifier based on metal-oxide-semiconductor parallel-connection structure.
One as prepayment intelligent water meter system of the present invention is improved, and the number of described metal-oxide-semiconductor is 4,8 or 16.
One as prepayment intelligent water meter system of the present invention is improved, described digital circuit blocks comprises internal control module, clock generation module, single water computing module, EEPROM storage card read-write interface and LCD LCD interface, the output terminal of described clock generation module respectively with the input end of described internal control module, the input end of described single water computing module, the input end of described EEPROM storage card read-write interface is connected with the input end of described LCD LCD interface, described single water computing module, described EEPROM storage card read-write interface and described LCD LCD interface all with described internal control module both-way communication, described LCD LCD interface is connected with described LCD MODULE, the output terminal of described internal control module is also connected with described valve control module.
One as prepayment intelligent water meter system of the present invention is improved, and described flow sensor is set to two, and two described flow sensors are all set to tongue tube sensor.
One as prepayment intelligent water meter system of the present invention is improved, and described LCD MODULE is set to segment encode liquid crystal display.
One as prepayment intelligent water meter system of the present invention is improved, and described radio frequency module for reading and writing comprises the RFID read-write chip that radio-frequency card and model are PICOREAD.
One as prepayment intelligent water meter system of the present invention is improved, and described intellectual water meter system also comprises voltage detection module, and the input end of described voltage detection module is connected with the output terminal of described battery and the input end of described chip respectively with output terminal.
Through inventor's analysis, the power consumption of intellectual water meter is mainly made up of two parts: Part I is chip and the LCD MODULE continuation power consumption while normally moving, and this is main power consumption; Part II is instantaneous energy consumption when radio frequency module for reading and writing reads and writes data and valve control module moves.
With respect to prior art, the present invention is by design chip low in energy consumption and optimize LCD MODULE, and optimize the part that in whole intellectual water meter system, other can be optimised, overall reduction the power consumption of whole intellectual water meter system, thereby improve the stability of system, greatly reduce maintenance cost, safeguarded user's use impression, for further developing of intellectual water meter provides direction.
Brief description of the drawings
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is the structured flowchart of chips of the present invention.
Fig. 3 is the structured flowchart of the analog module in chips of the present invention.
Fig. 4 is the structured flowchart of the digital circuit blocks in chips of the present invention.
Fig. 5 is the structured flowchart of radio frequency module for reading and writing in the present invention.
Wherein:
1-water meter case;
11-water inlet, 12-water delivering orifice;
2-flow sensor;
3-chip;
31-analog module;
311-low noise amplifier, 312-bandpass filter;
32-waveform changing circuit module;
33-digital circuit blocks;
331-internal control module, 332-clock generation module, 333-single water computing module, 334-EEPROM storage card read-write interface, 335-LCD LCD interface;
4-battery;
5-valve control module;
6-radio frequency module for reading and writing;
61-radio-frequency card;
611-radio-frequency interface circuit, the digital control part of 612-, 613-EEPROM storer;
62-RFID read-write chip;
7-LCD MODULE;
8-valve;
9-voltage detection module;
10-measures base table;
13-Internet of Things information security module.
Embodiment
As shown in Figure 1, a kind of prepayment intelligent water meter system provided by the invention, comprise metering base table 10, with the water meter case 1 of water inlet 11 and water delivering orifice 12, and be arranged at the flow sensor 2 at water meter case 1 inner flow passage center, water meter case 1 is arranged at the periphery of metering base table 10, this intellectual water meter system also comprises chip 3, battery 4, valve control module 5, Internet of Things information security module 13, radio frequency module for reading and writing 6 and LCD MODULE 7, the output terminal of flow sensor 2 is connected with the input end of chip 3, the output terminal of chip 3 is connected with valve control module 5 and LCD MODULE 7 respectively, the output terminal of radio frequency module for reading and writing 6 is connected with the input end of Internet of Things information security module 13, chip 3 and Internet of Things information security module 13 both-way communications, battery 4 respectively with valve control module 5, chip 3, Internet of Things information security module 13, LCD MODULE 7 is connected with radio frequency module for reading and writing 6.
Wherein, metering base table 10 is bases that water meter is realized metering, and primary structure part is identical with standard machinery water meter.The vane rotary number of turns in metering base table 10 is converted to electric signal by flow sensor 2, to realize frequency pulse technology, and then realizes the metering of discharge.Valve control module 5 is for controlling the valve 8 on pipeline.
LCD MODULE 7 is interfaces of man-machine interaction, for showing data in various tables, facilitates user to inquire about water information or water supply department inquiry water meter duty.
Internet of Things information security module 13 can ensure the safety of the information recording in each user's water meter.
By insert networked information security module in intellectual water meter, while making it carry out exchanges data by data transmission module and Internet of Things remote control terminal, carry out authentication, ensured the legitimacy of both communication, and intellectual water meter chip must could communicate with outside by information security management module as controller; Running-water Company utilizes the Internet of Things information security module in terminal water meter, can realize the authority setting of differentiated control by different keys, and adopt 3DES/AES multi-level encryption mode, make the security of key higher, and can download a mouthful real-time upgrading key, the risk of avoiding key exposure to bring by the program in Internet of Things information security module; By built-in data verifying program, ensure that the data of transmission are true, accurate, complete.Can seamless access water supply management system by inner Internet of Things information security module, realize Intelligent water meter of Internet of things and disperse to manufacture, unified management, range of application is wide, and ensures the independence of Running-water Company in the control of terminal water meter, and is not subject to extraneous restriction.
As shown in Figure 2, chip 3 comprises analog module 31, waveform changing circuit module 32 and digital circuit blocks 33, and the input end of waveform changing circuit module 32 is connected with the output terminal of analog module 31 and the input end of digital circuit blocks 33 respectively with output terminal.Analog module 31 carries out the processing such as noise reduction, amplification and waveform transformation to signal, the pulse signal of formation with flow information is as the input of digital circuit blocks 33.
As shown in Figure 3, analog module 31 comprises low noise amplifier 311 and bandpass filter 312, the output terminal of low noise amplifier 311 is connected with the input end of bandpass filter 312, and the output terminal of bandpass filter 312 is connected with the input end of waveform changing circuit module 32.Due in intellectual water meter system, no matter whether there is signal to enter, low noise amplifier 311 must remain duty, therefore introduces low power dissipation design and can greatly reduce the overall power of whole system at low noise amplifier 311.
Low noise amplifier 311 is set to the low noise amplifier based on metal-oxide-semiconductor parallel-connection structure, and practice shows, the low noise amplifier 311 of this kind of structure can be realized low-power consumption.
The number of metal-oxide-semiconductor is 4,8 or 16, is now respectively two groups of parallel-connection structures, three groups of parallel-connection structures and four groups of parallel-connection structures.
As shown in Figure 4, digital circuit blocks 33 comprises internal control module 331, clock generation module 332, single water computing module 333, EEPROM storage card read-write interface 334 and LCD LCD interface 335, the output terminal of clock generation module 332 respectively with the input end of internal control module 331, the input end of single water computing module 333, the input end of EEPROM storage card read-write interface 334 is connected with the input end of LCD LCD interface 335, single water computing module 333, EEPROM storage card read-write interface 334 and LCD LCD interface 335 all with internal control module 331 both-way communications.LCD LCD interface 335 is connected with LCD MODULE 7, and the output terminal of internal control module 331 is also connected with valve control module 5.
Flow sensor 2 is set to two, and two flow sensors 2 are all set to, into tongue tube sensor, because the contact of tongue tube sensor is sealed in glass tube, not be subject to the impact of external environment, and its contact fusing point is high, long working life.The present invention adopts two tongue tube sensors can play following effect: the one, and effective minimizing " water hammer " error, the 2nd, can prevent the error that flows backwards, the 3rd, can detect strong magnetic interference.
LCD MODULE 7 is set to segment encode liquid crystal display, and segment encode liquid crystal display power consumption is very low, and with low cost.
As shown in Figure 5, radio frequency module for reading and writing 6 comprises the RFID read-write chip 62 that radio-frequency card 61 and model are PICOREAD.In the present invention, radio-frequency card 61 is selected Mifare card, and it comprises radio-frequency interface circuit 611, digital control part 612 and eeprom memory 613.Eeprom memory 613 is connected with EEPROM storage card read-write interface 334.Model is that the RFID read-write chip 62 of PICOREAD has advantages of low in energy consumption.
Intellectual water meter system also comprises voltage detection module 9, and the input end of voltage detection module 9 is connected with the output terminal of battery 4 and the input end of chip 3 respectively with output terminal.Voltage detection module 9 is for detection of the electric weight of battery 4, and in the time that battery reaches serviceable life or other abnormal conditions and causes the electric weight of battery 4 not enough, chip 3 by-pass valve control control modules 5 are closed, and reminding user electric weight deficiency.
The present invention has following functions:
(1) cold water flow metering accurately and dual Presentation Function, it can successively decrease to calculate by electronics and realize machinery, the demonstration of liquid crystal double measure.
(2) pre-payment control function, realize automatic open close valve control module 5 according to the water yield that pre-payment is bought, the automatic radix of water consumption, purchasing the water yield increases automatically, user purchases the water yield by subscriber card to writing in water meter, finish using when purchasing the water yield, valve control module 5 is closed cut-out water automatically, user only could automatic valve opening after payment is again purchased water and will be purchased the water yield to write water meter by subscriber card water.
(3) real time monitoring function, when there is strong magnetic interference in the external world, tears table etc. open, water meter can self-closing valve door control module 5, and records corresponding information; And when the electric weight of battery 4 is when reliable, can self-closing valve door control module 5.
(4) chip 3 of intellectual water meter, as controller for water meter, must could communicate with outside by Internet of Things information security module 13; Simultaneously Internet of Things information security mould of the present invention, 3 is simple in structure, can seamless access water supply management system by it, realize Intelligent water meter of Internet of things and disperse to manufacture, unified management, range of application is wide.
In a word, low, low in energy consumption, the perfect in shape and function of cost of the present invention, accurate measurement and high reliability.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (10)
1. a prepayment intelligent water meter system, comprise metering base table, with the water meter case of water inlet and water delivering orifice, and be arranged at the flow sensor at described water meter case inner flow passage center, described water meter case is arranged at described metering base table periphery, it is characterized in that: also comprise chip, battery, valve control module, Internet of Things information security module, radio frequency module for reading and writing and LCD MODULE, the output terminal of described flow sensor is connected with the input end of described chip, the output terminal of described chip is connected with described valve control module and described LCD MODULE respectively, the output terminal of described radio frequency module for reading and writing is connected with the input end of described Internet of Things information security module, described chip and described Internet of Things information security module both-way communication, described battery respectively with described valve control module, described chip, described Internet of Things information security module, described LCD MODULE is connected with described radio frequency module for reading and writing.
2. prepayment intelligent water meter system according to claim 1, it is characterized in that: described chip comprises analog module, waveform changing circuit module and digital circuit blocks, the input end of described waveform changing circuit module is connected with the output terminal of described analog module and the input end of described digital circuit blocks respectively with output terminal.
3. prepayment intelligent water meter system according to claim 2, it is characterized in that: described analog module comprises low noise amplifier and bandpass filter, the output terminal of described low noise amplifier is connected with the input end of described bandpass filter, and the output terminal of described bandpass filter is connected with the input end of described waveform changing circuit module.
4. prepayment intelligent water meter system according to claim 3, is characterized in that: described low noise amplifier is set to the low noise amplifier based on metal-oxide-semiconductor parallel-connection structure.
5. prepayment intelligent water meter system according to claim 4, is characterized in that: the number of described metal-oxide-semiconductor is 4,8 or 16.
6. prepayment intelligent water meter system according to claim 2, it is characterized in that: described digital circuit blocks comprises internal control module, clock generation module, single water computing module, EEPROM storage card read-write interface and LCD LCD interface, the output terminal of described clock generation module respectively with the input end of described internal control module, the input end of described single water computing module, the input end of described EEPROM storage card read-write interface is connected with the input end of described LCD LCD interface, described single water computing module, described EEPROM storage card read-write interface and described LCD LCD interface all with described internal control module both-way communication, described LCD LCD interface is connected with described LCD MODULE, the output terminal of described internal control module is also connected with described valve control module.
7. prepayment intelligent water meter system according to claim 1, is characterized in that: described flow sensor is set to two, and two described flow sensors are all set to tongue tube sensor.
8. prepayment intelligent water meter system according to claim 1, is characterized in that: described LCD MODULE is set to segment encode liquid crystal display.
9. prepayment intelligent water meter system according to claim 1, is characterized in that: described radio frequency module for reading and writing comprises the RFID read-write chip that radio-frequency card and model are PICOREAD.
10. prepayment intelligent water meter system according to claim 1, it is characterized in that: described intellectual water meter system also comprises voltage detection module, the input end of described voltage detection module is connected with the output terminal of described battery and the input end of described chip respectively with output terminal.
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| CN201410159188.4A CN103985197A (en) | 2014-04-18 | 2014-04-18 | Prepaid intelligent water meter system |
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| CN201410159188.4A CN103985197A (en) | 2014-04-18 | 2014-04-18 | Prepaid intelligent water meter system |
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| CN104252746A (en) * | 2014-07-25 | 2014-12-31 | 安徽恩米特微电子股份有限公司 | Running system of intelligent water meter |
| CN104714623A (en) * | 2015-03-13 | 2015-06-17 | 北京双得利科工贸有限责任公司 | Low power consumption water or heat or gas meter and handling method based on wireless communication Internet of Things |
| CN105844807A (en) * | 2016-05-22 | 2016-08-10 | 南宁市茂百科技有限公司 | IC card intelligent water meter based on single chip microcomputer |
| CN106781055A (en) * | 2016-12-19 | 2017-05-31 | 湖北正源智能科技有限公司 | A kind of remote controlled intellectual water meter |
| CN106768139A (en) * | 2016-12-19 | 2017-05-31 | 湖北正源智能科技有限公司 | A kind of intellectual water meter |
| CN107167207A (en) * | 2017-06-30 | 2017-09-15 | 深圳龙电电气股份有限公司 | Water meter device |
| CN107167206A (en) * | 2017-06-30 | 2017-09-15 | 深圳龙电电气股份有限公司 | A kind of water meter and its metering circuit |
| CN108198344A (en) * | 2018-02-08 | 2018-06-22 | 宁夏隆基宁光仪表股份有限公司 | The wireless intelligent water meter of counterflow-preventing |
| CN108831038A (en) * | 2018-06-25 | 2018-11-16 | 临沂金海仪表制造有限公司 | A kind of prepayment intelligent water meter system |
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| CN104252746A (en) * | 2014-07-25 | 2014-12-31 | 安徽恩米特微电子股份有限公司 | Running system of intelligent water meter |
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| CN107167206A (en) * | 2017-06-30 | 2017-09-15 | 深圳龙电电气股份有限公司 | A kind of water meter and its metering circuit |
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| CN108198344A (en) * | 2018-02-08 | 2018-06-22 | 宁夏隆基宁光仪表股份有限公司 | The wireless intelligent water meter of counterflow-preventing |
| CN108831038A (en) * | 2018-06-25 | 2018-11-16 | 临沂金海仪表制造有限公司 | A kind of prepayment intelligent water meter system |
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Application publication date: 20140813 |