CN105301976A - Smart household gas management system based on radio frequency identification clipping detection circuit - Google Patents
Smart household gas management system based on radio frequency identification clipping detection circuit Download PDFInfo
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- CN105301976A CN105301976A CN201510756909.4A CN201510756909A CN105301976A CN 105301976 A CN105301976 A CN 105301976A CN 201510756909 A CN201510756909 A CN 201510756909A CN 105301976 A CN105301976 A CN 105301976A
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- circuit
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- pmos transistor
- amplitude limit
- gas flow
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2642—Domotique, domestic, home control, automation, smart house
Abstract
The invention discloses a smart household gas management system based on a radio frequency identification clipping detection circuit. The smart household gas management system comprises a monitoring center and a gas flow detection terminal which is connected with the monitoring center. The monitoring center comprises a master controller module, and a radio frequency identification module, a wireless communication module and a touch display screen which are connected with the master controller module. The gas flow detection terminal comprises a data transmission module, a microcontroller module, an amplification circuit, an analog-to-digital conversion circuit and a flow sensor. The flow sensor is connected with the microcontroller module via the analog-to-digital conversion circuit and the amplification circuit which are connected in turn. The microcontroller module is connected with the data transmission module. The radio frequency identification module comprises a frequency generator, an enhanced mode controller, a power amplifier, a crystal oscillator, a modulator and a demodulator which are connected in turn.
Description
Technical field
The present invention relates to a kind of Smart Home civil gas management system, particularly relate to a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit, belong to Smart Home civil gas management technical field.
Background technology
Internet of Things refers to various information sensing equipment, as rfid device, infrared inductor, GPS, laser scanner etc. combine with internet, forms a huge network.Then, all include all article in life in this network, convenient identification and management.Generally, the terminal of internet is people, and the terminal of " Internet of Things " is article, each part article has CPU, the network address and sensor, between article and article also can transmission of information, send instruction, its primary motivitation makes all article together connected to the network, and what system can be automatic, real-time monitors object, identify, locate, follow the trail of and trigger corresponding event.
Such as application number is that apparatus for ask for help through is located in a kind of traffic accident of " 201110163240.X " automatically, comprise traffic accident sensor, temperature sensor, position locator and distress signal transmitter, traffic accident sensor is used for the state of Real-Time Monitoring air bag, generates traffic accident control signal when air bag is opened; Temperature sensor is used for Real-time Collection compartment temperature information, generates fire control signal when compartment temperature is greater than the threshold value pre-set; Position locator is used for vehicle position information to send to distress signal transmitter; Distress signal transmitter for generating emergency note, and will cry for help short message sending to associated mechanisms or individual by wireless network.Get into an accident or fire time, the present invention can send emergency note automatically, and provides vehicle position information accurately, make salvage service implement in time relief, injured litigant can be given first aid in time.
And for example application number is " 201210145683.0 " automatic car accident positioning alarm system, forms primarily of central processing unit and the GPS module be connected with central processing unit respectively, gsm module and MEMS acceleration transducer.The invention has the advantages that: this automatic positioning alarm system design adopts Atmega128 single-chip microcomputer as the central processing unit of whole system, is connected with MEMS acceleration transducer, GPS locating module, gsm communication module.Can in automatic placement of emergency calls after the occurrence of the traffic accident, inform exact position that relevant departments' traffic accident occurs, time, make it send rescue group in the very first time, striving for the more time to rescuing the wounded, saving more life.
Summary of the invention
Technical matters to be solved by this invention provides a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit for the deficiency of background technology.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit, comprise Surveillance center and connected gas flow sense terminals, described Surveillance center comprises main controller module and connected radio frequency identification module, wireless communication module and touch display screen, described gas flow sense terminals comprises data transmission module, micro controller module, amplifying circuit, analog to digital conversion circuit, flow sensor, the analog to digital conversion circuit of described flow sensor by connecting successively, amplifying circuit connects micro controller module, described micro controller module is connected with data transmission module,
Described radio frequency identification module comprises a regulator rectifier circuit, and described regulator rectifier circuit comprises coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, circuit mu balanced circuit; Described coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described circuit mu balanced circuit is connected with amplitude limit bleeder circuit, circuit mu balanced circuit respectively, and described coupled circuit is for being coupled to radio frequency identification module by input signal; Described amplitude limit testing circuit is for detecting the voltage amplitude after rectification; Described amplitude limit bleeder circuit is for unnecessary current drain of releasing; Described mu balanced circuit for carry out voltage stabilizing process, stable output supply voltage for other circuit module;
Described amplitude limit testing circuit comprises the first nmos pass transistor and the second nmos pass transistor, the first PMOS transistor, the second PMOS transistor, the 3rd PMOS transistor and the 4th PMOS transistor, the first resistance; The grid of the first nmos pass transistor is connected with one end of the second inductance of described coupled circuit with drain electrode, the grid of the second nmos pass transistor is connected with the other end of the second inductance of described coupled circuit with drain electrode, the source electrode of the first nmos pass transistor is connected with the source electrode of the second nmos pass transistor, and its node connected is set to A; The source electrode of the first PMOS transistor is connected with described A point with the source electrode of the 4th PMOS transistor; The drain electrode of the 4th PMOS transistor is connected with one end of the first resistance; The other end ground connection of the first resistance; The grid of the 4th PMOS transistor is connected with the source electrode of the drain and gate of the first PMOS transistor and the second PMOS transistor; The drain and gate of the second PMOS transistor is connected with the source electrode of the 3rd PMOS transistor; The drain and gate ground connection of the 3rd PMOS transistor;
Wherein, flow sensor, for detecting gas flow parameter in real time;
Analog to digital conversion circuit, for becoming digital signal by the gas flow Parameter Switch of flow sensor collection;
Amplifying circuit, the digital signal for being converted to by analog to digital conversion circuit carries out amplification process, and then is uploaded to micro controller module;
Micro controller module, for being sent to Surveillance center by the gas flow parameter of collection by data transmission module;
Radio frequency identification module, for identifying and receive the gas flow parameter that gas flow sense terminals is sent;
Touch display screen, for the gas flow parameter that real-time query and display gas flow sense terminals send;
Main controller module, the gas flow parameter for reception gas flow sense terminals being sent carries out arranging process and then transferring to corresponding corporate server by wireless communication module.
As the further preferred version of a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit of the present invention, described main controller module adopts S3C2440 chip as main control chip.
As the further preferred version of a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit of the present invention, described flow sensor adopts MF4000 serial gas flowmeter.
As the further preferred version of a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit of the present invention, described wireless communication module adopts the MC39iGSM/GPRS terminal wireless module of Siemens.
As the further preferred version of a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit of the present invention, described amplifying circuit adopts three-stage amplifier.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, the present invention designs a kind of Smart Home networking blueprint of simple and feasible, its have cost low, be easy to advantages such as realizing, networking is easy, based on above-mentioned main control platform, only need the inside local communication network adjusting Smart Home just can realize more perfect Smart Home function;
2, the present invention is based on (SuSE) Linux OS, develop the intelligent home control system of a set of fusing wireless mobile network, rfid device, this system has the functions such as intelligent meter data recording, remote opening electrical equipment, radio-frequency (RF) identification Remote.
Embodiment
Below technical scheme of the present invention is described in further detail:
A kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit, comprise Surveillance center and connected gas flow sense terminals, described Surveillance center comprises main controller module and connected radio frequency identification module, wireless communication module and touch display screen, described gas flow sense terminals comprises data transmission module, micro controller module, amplifying circuit, analog to digital conversion circuit, flow sensor, the analog to digital conversion circuit of described flow sensor by connecting successively, amplifying circuit connects micro controller module, described micro controller module is connected with data transmission module,
Described radio frequency identification module comprises a regulator rectifier circuit, and described regulator rectifier circuit comprises coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, circuit mu balanced circuit; Described coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described circuit mu balanced circuit is connected with amplitude limit bleeder circuit, circuit mu balanced circuit respectively, and described coupled circuit is for being coupled to radio frequency identification module by input signal; Described amplitude limit testing circuit is for detecting the voltage amplitude after rectification; Described amplitude limit bleeder circuit is for unnecessary current drain of releasing; Described mu balanced circuit for carry out voltage stabilizing process, stable output supply voltage for other circuit module;
Described amplitude limit testing circuit comprises the first nmos pass transistor and the second nmos pass transistor, the first PMOS transistor, the second PMOS transistor, the 3rd PMOS transistor and the 4th PMOS transistor, the first resistance; The grid of the first nmos pass transistor is connected with one end of the second inductance of described coupled circuit with drain electrode, the grid of the second nmos pass transistor is connected with the other end of the second inductance of described coupled circuit with drain electrode, the source electrode of the first nmos pass transistor is connected with the source electrode of the second nmos pass transistor, and its node connected is set to A; The source electrode of the first PMOS transistor is connected with described A point with the source electrode of the 4th PMOS transistor; The drain electrode of the 4th PMOS transistor is connected with one end of the first resistance; The other end ground connection of the first resistance; The grid of the 4th PMOS transistor is connected with the source electrode of the drain and gate of the first PMOS transistor and the second PMOS transistor; The drain and gate of the second PMOS transistor is connected with the source electrode of the 3rd PMOS transistor; The drain and gate ground connection of the 3rd PMOS transistor;
Wherein, flow sensor, for detecting gas flow parameter in real time;
Analog to digital conversion circuit, for becoming digital signal by the gas flow Parameter Switch of flow sensor collection;
Amplifying circuit, the digital signal for being converted to by analog to digital conversion circuit carries out amplification process, and then is uploaded to micro controller module;
Micro controller module, for being sent to Surveillance center by the gas flow parameter of collection by data transmission module;
Radio frequency identification module, for identifying and receive the gas flow parameter that gas flow sense terminals is sent;
Touch display screen, for the gas flow parameter that real-time query and display gas flow sense terminals send;
Main controller module, the gas flow parameter for reception gas flow sense terminals being sent carries out arranging process and then transferring to corresponding corporate server by wireless communication module.
Wherein, described main controller module adopts S3C2440 chip as main control chip, described flow sensor adopts MF4000 serial gas flowmeter, described wireless communication module adopts the MC39iGSM/GPRS terminal wireless module of Siemens, and described amplifying circuit adopts three-stage amplifier.
The present invention designs a kind of Smart Home networking blueprint of simple and feasible, its have cost low, be easy to advantages such as realizing, networking is easy, based on above-mentioned main control platform, only need the inside local communication network adjusting Smart Home just can realize more perfect Smart Home function; The present invention is based on (SuSE) Linux OS, develop the intelligent home control system of a set of fusing wireless mobile network, rfid device, this system has the functions such as intelligent meter data recording, remote opening electrical equipment, radio-frequency (RF) identification Remote.
Native system adopts S3C2440 chip as master controller, and operation interface is 4.3 cun of touch display screens.After powering on, display screen shows each equipment in whole house system network, and each equipment is a corresponding icon respectively, comprises signal light control, fan, refrigerator, electric cooker, gas flow collection etc.Clickable icon enters the corresponding details hurdle of this equipment.Enter signal light control interface, each room bright light situation in family can be checked easily, also can the long-range light on and off being controlled the lamp in each room by short message mode; Combustion gas service condition can be sent to correlation acquisition department easily; Be sitting in office, electric cooker power supply can be connected by a note.Have selected the radio transceiver chip nRF24L01 of 2.4GHz in household between each equipment and main control platform, the radio communication between each home equipment and main control platform can be realized by it.The communication of main control platform and outer net, employing be the MC39iGSM/GPRS terminal wireless module of Siemens.Gas flow measurement have employed the MF4000 serial gas flowmeter gas meter of Xi Xiang MEMS (micro electro mechanical system) company limited of the U.S.;
Embedded-type ARM 2440 system development platform is the monitoring and management center of whole intelligent domestic system, and it is mainly integrated with wireless communication module, radio frequency identification module, infrared induction module, touch display screen.This master control platform can receive external command by wireless module on the one hand, and by radio-frequency (RF) identification, controls corresponding home equipment and work in accordance with the instructions, such as, open electric cooker, air-conditioning or washing machine.On the other hand, each home equipment operation information can be received by data transmission module and gather, after process, data can be sent to embedded-type ARM 2440 system development platform, this platform, by after Data classification process, can be selected useful data to be sent to corresponding corporate server, realize automatic data logging.
Each home equipment in intelligent home control system, all needs to install a radio frequency identification module respectively, can realize short-distance wireless communication by this module with embedded-type ARM 2440 system development platform.
NRF24L01 is a Monolithic RF transceiver part being operated in 2.4 ~ 2.5GHz Global Access ISM band.This radio frequency identification module can realize multi-computer communication, and multi-computer communication adopts the method for frequency division multiple access, only needs at receiving end different passage configuration addresss.Transmitting terminal uses corresponding address as the machine address.The data of which passage by what read that relevant bits in STATUS can learn reception when receiving data.Comprise in radio frequency identification module: frequency generator, enhancement mode SchockBurstTM mode controller, power amplifier, crystal oscillator, modulator and demodulator.The selection of output power channel and agreement can be arranged by corresponding SPI interface.Radio frequency identification module is low in energy consumption, and when being operated under emission mode emissive power for-6dBm, current drain is 9.0mA; Be 12.3mA during receiving mode, under power-down mode and standby mode, current drain is lower.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (5)
1. the Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit, it is characterized in that: comprise Surveillance center and connected gas flow sense terminals, described Surveillance center comprises main controller module and connected radio frequency identification module, wireless communication module and touch display screen, described gas flow sense terminals comprises data transmission module, micro controller module, amplifying circuit, analog to digital conversion circuit, flow sensor, the analog to digital conversion circuit of described flow sensor by connecting successively, amplifying circuit connects micro controller module, described micro controller module is connected with radio frequency identification module,
Described radio frequency identification module comprises a regulator rectifier circuit, and described regulator rectifier circuit comprises coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit, circuit mu balanced circuit; Described coupled circuit, amplitude limit testing circuit, amplitude limit bleeder circuit connect successively, and described circuit mu balanced circuit is connected with amplitude limit bleeder circuit, circuit mu balanced circuit respectively, and described coupled circuit is for being coupled to radio frequency identification module by input signal; Described amplitude limit testing circuit is for detecting the voltage amplitude after rectification; Described amplitude limit bleeder circuit is for unnecessary current drain of releasing; Described mu balanced circuit for carry out voltage stabilizing process, stable output supply voltage for other circuit module;
Described amplitude limit testing circuit comprises the first nmos pass transistor and the second nmos pass transistor, the first PMOS transistor, the second PMOS transistor, the 3rd PMOS transistor and the 4th PMOS transistor, the first resistance; The grid of the first nmos pass transistor is connected with one end of the second inductance of described coupled circuit with drain electrode, the grid of the second nmos pass transistor is connected with the other end of the second inductance of described coupled circuit with drain electrode, the source electrode of the first nmos pass transistor is connected with the source electrode of the second nmos pass transistor, and its node connected is set to A; The source electrode of the first PMOS transistor is connected with described A point with the source electrode of the 4th PMOS transistor; The drain electrode of the 4th PMOS transistor is connected with one end of the first resistance; The other end ground connection of the first resistance; The grid of the 4th PMOS transistor is connected with the source electrode of the drain and gate of the first PMOS transistor and the second PMOS transistor; The drain and gate of the second PMOS transistor is connected with the source electrode of the 3rd PMOS transistor; The drain and gate ground connection of the 3rd PMOS transistor;
Wherein, flow sensor, for detecting gas flow parameter in real time;
Analog to digital conversion circuit, for becoming digital signal by the gas flow Parameter Switch of flow sensor collection;
Amplifying circuit, the digital signal for being converted to by analog to digital conversion circuit carries out amplification process, and then is uploaded to micro controller module;
Micro controller module, for being sent to Surveillance center by the gas flow parameter of collection by data transmission module;
Radio frequency identification module, for identifying and receive the gas flow parameter that gas flow sense terminals is sent;
Touch display screen, for the gas flow parameter that real-time query and display gas flow sense terminals send;
Main controller module, the gas flow parameter for reception gas flow sense terminals being sent carries out arranging process and then transferring to corresponding corporate server by wireless communication module.
2. a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit according to claim 1, is characterized in that: described main controller module adopts S3C2440 chip as main control chip.
3. a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit according to claim 1, is characterized in that: described flow sensor adopts MF4000 serial gas flowmeter.
4. a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit according to claim 1, is characterized in that: described wireless communication module adopts the MC39iGSM/GPRS terminal wireless module of Siemens.
5. a kind of Smart Home civil gas management system based on radio-frequency (RF) identification amplitude limit testing circuit according to claim 1, is characterized in that: described amplifying circuit adopts three-stage amplifier.
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| CN201510756909.4A CN105301976A (en) | 2015-11-10 | 2015-11-10 | Smart household gas management system based on radio frequency identification clipping detection circuit |
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| CN201510756909.4A CN105301976A (en) | 2015-11-10 | 2015-11-10 | Smart household gas management system based on radio frequency identification clipping detection circuit |
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| CN105301976A true CN105301976A (en) | 2016-02-03 |
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Citations (4)
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| CN104516381A (en) * | 2013-09-26 | 2015-04-15 | 上海华虹集成电路有限责任公司 | Rectification and voltage stabilization circuit for radio frequency identification |
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2015
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Patent Citations (4)
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| CN203386053U (en) * | 2013-06-28 | 2014-01-08 | 深圳市科道智能产品有限公司 | Intelligent home furnishing system |
| CN104516381A (en) * | 2013-09-26 | 2015-04-15 | 上海华虹集成电路有限责任公司 | Rectification and voltage stabilization circuit for radio frequency identification |
| CN104656598A (en) * | 2013-11-25 | 2015-05-27 | 天津鑫帝尔高科技有限公司 | Remote combustor real-time monitoring system based on Internet of things |
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Application publication date: 20160203 |