CN203894855U - Prepaid intelligent water meter system - Google Patents
Prepaid intelligent water meter system Download PDFInfo
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- CN203894855U CN203894855U CN201420191050.8U CN201420191050U CN203894855U CN 203894855 U CN203894855 U CN 203894855U CN 201420191050 U CN201420191050 U CN 201420191050U CN 203894855 U CN203894855 U CN 203894855U
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Abstract
The utility model belongs the technical field of intelligent water meters, and in particular relates to a prepaid intelligent water meter system, comprising a metering basic meter, a water meter shell with a water inlet and a water outlet, and a flow sensor arranged at the center of the flow channel in the water meter shell, wherein the water meter shell is arranged at the periphery of the metering basic meter, the output end of the flow sensor is connected to the input end of a chip, the output end of the chip is connected to a valve control module and a liquid crystal display module respectively, the output end of a radio frequency read-write module connected to the input end of an information safety module of the Internet of Things, and the chip and the information safety module of the Internet of Things are in bidirectional communication. Compared with the prior art, the chip with low energy consumption and optimized liquid crystal display module are designed in the prepaid intelligent water meter system, and other parts can be optimized in the whole intelligent water meter system are optimized, so that energy consumption of the whole intelligent water meter system is totally reduced, and thereby stability of the system is improved, maintenance cost is greatly reduced, use experience of users is maintained, and direction is provided for the further development of the intelligent water meter.
Description
Technical field
The utility model belongs to intellectual water meter technical field, and more particularly, the utility model 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 to each family, asks for 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 that a kind of modern microelectric technique, Modern Transducer Technology, intellective IC card technology utilized measures and carry out the new water meter of the transmission of water data and settlement bargain to water consumption.Intellectual water meter except can to water consumption record and electronical display, can also according to agreement to water consumption, control.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 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 is used 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 purpose of this utility model is: 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 utility model adopts following technical scheme:
A kind of prepayment intelligent water meter system, comprise metering base table, water meter case with water inlet and water delivering orifice, and the flow sensor that is arranged at described water meter case inner flow passage center, it is peripheral that described water meter case is arranged at described metering base table, 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 LCD MODULE with described valve control 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.
A kind of improvement as the utility model prepayment intelligent water meter system, 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.
A kind of improvement as the utility model prepayment intelligent water meter system, 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.
As a kind of improvement of the utility model prepayment intelligent water meter system, described low noise amplifier is set to the low noise amplifier based on metal-oxide-semiconductor parallel-connection structure.
As a kind of improvement of the utility model prepayment intelligent water meter system, the number of described metal-oxide-semiconductor is 4,8 or 16.
A kind of improvement as the utility model prepayment intelligent water meter system, 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.
As a kind of improvement of the utility model prepayment intelligent water meter system, described flow sensor is set to two, and two described flow sensors are all set to tongue tube sensor.
As a kind of improvement of the utility model prepayment intelligent water meter system, described LCD MODULE is set to segment encode liquid crystal display.
As a kind of improvement of the utility model prepayment intelligent water meter system, described radio frequency module for reading and writing comprises the RFID read-write chip that radio-frequency card and model are PICOREAD.
As a kind of improvement of the utility model prepayment intelligent water meter system, 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 utility model people's analysis, the power consumption of intellectual water meter is mainly comprised of two parts: first is chip and the LCD MODULE continuation power consumption while normally moving, and this is main power consumption; Second portion 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 utility model 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 improved the stability of system, greatly reduce maintenance cost, safeguarded user's use impression, for further developing of intellectual water meter provides direction.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is the structured flowchart of the utility model chips.
Fig. 3 is the structured flowchart of the analog module in the utility model chips.
Fig. 4 is the structured flowchart of the digital circuit blocks in the utility model chips.
Fig. 5 is the structured flowchart of radio frequency module for reading and writing in the utility model.
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 that the utility model provides, comprise metering base table 10, water meter case 1 with water inlet 11 and water delivering orifice 12, and the flow sensor 2 that is arranged 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 LCD MODULE 7 with valve control module 5 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.Flow sensor 2 is converted to electric signal by the vane rotary number of turns in metering base table 10, 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, guaranteed 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, the authority that can realize differentiated control by different keys arranges, 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, guarantee 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 guarantees the independence of Running-water Company on terminal water meter is controlled, 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 input end of digital circuit blocks 33 with the output terminal of analog module 31 respectively with output terminal.31 pairs of signals of analog module carry out the processing such as noise reduction, amplification and waveform transformation, form the input as digital circuit blocks 33 with the pulse signal of flow information.
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 at low noise amplifier 311, introduces the overall power that low power dissipation design can greatly reduce whole system.
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 as tongue tube sensor, because the contact of tongue tube sensor is sealed in glass tube, be not subject to the impact of external environment, and its contact fusing point is high, long working life.The utility model 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 utility model, 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 input end of chip 3 with the output terminal of battery 4 respectively with output terminal.Voltage detection module 9 is for detection of the electric weight of battery 4, and when 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 is not enough.
The utlity model has following functions:
(1) cold water flow metering accurately and dual Presentation Function, it can successively decrease by electronics, and calculating realizes machinery, liquid crystal double measure shows.
(2) pre-payment is controlled function, according to the water yield that pre-payment is bought, realize automatic open close valve control module 5, 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, when purchasing the water yield, finish using, valve control module 5 is closed cut-out water automatically, user only again pay the fees purchase water and will purchase the water yield to write water meter by subscriber card after could automatic valve opening 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; Internet of Things information security mould of the present utility model simultaneously, 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 the utility model cost, accurate measurement and high reliability.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection domain of claim of the present utility model.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (10)
1. a prepayment intelligent water meter system, comprise metering base table, water meter case with water inlet and water delivering orifice, and the flow sensor that is arranged at described water meter case inner flow passage center, it is peripheral that described water meter case is arranged at described metering base table, 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 LCD MODULE with described valve control 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191050.8U CN203894855U (en) | 2014-04-18 | 2014-04-18 | Prepaid intelligent water meter system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191050.8U CN203894855U (en) | 2014-04-18 | 2014-04-18 | Prepaid intelligent water meter system |
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| Publication Number | Publication Date |
|---|---|
| CN203894855U true CN203894855U (en) | 2014-10-22 |
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| CN201420191050.8U Expired - Fee Related CN203894855U (en) | 2014-04-18 | 2014-04-18 | Prepaid intelligent water meter system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985197A (en) * | 2014-04-18 | 2014-08-13 | 东莞市新弘高科智能仪表有限公司 | Prepaid intelligent water meter system |
-
2014
- 2014-04-18 CN CN201420191050.8U patent/CN203894855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985197A (en) * | 2014-04-18 | 2014-08-13 | 东莞市新弘高科智能仪表有限公司 | Prepaid intelligent water meter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20160418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |