CN101927022B - Intelligent freshener releaser and operation method thereof - Google Patents
Intelligent freshener releaser and operation method thereof Download PDFInfo
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- CN101927022B CN101927022B CN 201010242231 CN201010242231A CN101927022B CN 101927022 B CN101927022 B CN 101927022B CN 201010242231 CN201010242231 CN 201010242231 CN 201010242231 A CN201010242231 A CN 201010242231A CN 101927022 B CN101927022 B CN 101927022B
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Abstract
The invention discloses an intelligent freshener releaser and an operation method thereof. The releaser comprises an odor detection module, a main controller module and an execution module, wherein the execution module comprises a freshener releaser, an exhaust fan and an active carbon filter device. The operation method comprises the following steps of: processing a monitoring signal of the odor detection module through the main controller module, converting the processed monitoring signal into a level signal, converting the level signal into digital quantity, finishing median filter, and performing fuzzy processing on the value after filtering to obtain a fuzzy variable; calling a fuzzy reasoning program to perform fuzzy reasoning on the fuzzy variable to obtain a fuzzy output variable for controlling the operation of the execution module; and performing defuzzification operation on the fuzzy output variable according to different control requirements of three execution units of the execution module to obtain control signal parameters of different functions respectively, and outputting the control signal parameters to the execution module. The intelligent freshener releaser can locally display gas concentration and content in real time, and also can perform remote real-time monitoring to realize accurate control of freshener release.
Description
Technical field
The present invention relates to freshener releaser, be specifically related to a kind of intelligent freshener releaser and operation method thereof.
Background technology
Pure and fresh environment is people's assurances of quality of life always, and the stink in lavatory is but perplexing people always in present public place (such as teaching building, station, dormitory) and the household building.In order to break away from the winding of stench, adopted a lot of methods.For example in order to cover the foul smell in lavatory, adopt a large amount of air fresheners that use with the method for mask malodors, therefore have more on the market and showed mode open or that the jet-propelled freshener of timing discharges, although have certain effect, also brought many problems simultaneously.For example, air freshener can't be removed the foul smell existing problems fully, and the use of excessive freshener, and the huge abnormal smells from the patient of itself becomes again people's a large problem; And the freshener of concentration (main component is ether, essence etc.) also produces harmful effect to human body; The use of a large amount of freshener, itself also is a kind of waste of resource, and is not easy to the management control of use cost.The release of the existing intelligent control freshener of historical facts or anecdotes is necessary, the invention solves the problems referred to above, realizes the intellectuality control of freshener release, air filtration and air exchange by innovative design.
Summary of the invention
The object of the invention is to overcome the prior art above shortcomings, a kind of intelligent freshener releaser and operation method thereof are provided.
The present invention is achieved through the following technical solutions:
A kind of intelligent freshener releaser, it comprises that the concentration cont signal with detected object is converted into the odor detection module of the signal of telecommunication, the main controller module of the signal of telecommunication control execution module work of the representative different odor concentration content that sends according to the odor detection module, and be used for carrying out the execution module of the control command that main controller module sends over; Described execution module comprises freshener releaser, exhaust blower and active carbon filtering device; Described odor detection module, main controller module and execution module are linked in sequence.
Above-mentioned intelligent freshener releaser, described odor detection module includes gas sensor.
Above-mentioned intelligent freshener releaser, described main controller module comprise Master control chip, resistance levels change-over circuit, signal of communication change-over circuit, DC-isolation drive circuit, exchange isolated drive circuit, output control interface and local display device; Main controller module receives the odor detection signal that the odor detection module transmits, exhibit flavour detection signal in local display device, and to the execution module transmitting control commands; Resistance levels change-over circuit in the main controller module is connected with the gas sensor of odor detection module, is that level signal is sent to Master control chip with the conversion of signals that receives; The signal of communication change-over circuit is connected with Master control chip, and the signal of communication that Master control chip is sent is converted to the shows signal that is fit to long-range displaying device and is sent to long-range displaying device; Local display device is connected with Master control chip, shows the shows signal that Master control chip sends; The input of DC-isolation drive circuit is connected with Master control chip by output control signal output interface, receive the control signal that Master control chip transmits, the DC-isolation drive circuit directly is connected with execution module or is connected with execution module by exchanging isolated drive circuit.
Above-mentioned intelligent freshener releaser, described execution module comprises freshener releaser, exhaust blower and activity carbon filtering device; Execution module is connected with main controller module, receives the control command that main controller module sends, and according to the start and stop action of control command execution to freshener releaser, exhaust blower and active carbon filtering device.
The operation method of a kind of intelligent freshener releaser of the present invention comprises the steps:
Step 1: the odor detection module is monitored the concentration of the monitoring target gas of the occasion of monitoring, and sends monitor signal to main control module;
Step 2: main control module is processed the described monitor signal of step 1, through being converted to level signal and being converted into digital quantity and finishing medium filtering, filtered value is carried out Fuzzy processing, obtains fuzzy variable; Call the fuzzy reasoning program, fuzzy variable is carried out fuzzy reasoning, draw the fuzzy output variable for the action of control execution module; According to the difference control requirement of three performance elements of execution module, respectively fuzzy output variable is carried out the ambiguity solution computing, obtain the control signal parameter of difference in functionality, export execution module to;
Step 3: execution module receiving step two described control commands, carry out control command, the start and stop of the freshener releaser in the realization execution module, exhaust blower, active carbon filtering device.
In the above-mentioned operation method, step 1 is selected corresponding gas sensor according to the kind of the main gas-monitoring of monitoring occasion, and the gas concentration in the monitored occasion is monitored, gather gas concentration signal, be converted to resistance signal and be sent to main control module.
Above-mentioned operation method, the monitor signal that the resistance levels change-over circuit receiving step one in the step 2 in the main control module transmits is converted to level signal, and this level signal is sent to Master control chip, treated shows signal and the control command signal of obtaining; Shows signal is sent to local display device and signal of communication change-over circuit, and control command is sent to the DC-isolation drive circuit through the control signal output interface, and the DC-isolation drive circuit is transferred to execution module with control command again.
Above-mentioned operation method, the fill order that execution module receiving step two transmits in the step 3, the start and stop of the freshener releaser in the realization execution module, exhaust blower, active carbon filtering device.
Above-mentioned operation method, main control module is processed specifically and is comprised the steps: stating monitor signal in the step 2
A. main control module receives gas sensor and detects and to export to get resistance signal according to monitored target concentration content, through being converted to level signal, and the level signal value is converted into digital quantity; Store the data volume of nearest 5 collections, choose intermediate value, finish medium filtering;
B. with filtered value, and should value with respect to the variable quantity in the previous moment, carry out Fuzzy processing, keep the fuzzy variable of obfuscation gained;
C. call the fuzzy reasoning program, the fuzzy variable of utilizing Fuzzy processing to obtain draws the fuzzy output variable of moving for the control execution module through fuzzy reasoning;
D. control the parameter request of the different output functions such as requirement and the requirement of exhaust blower running speed according to the requirement of freshener burst size, active carbon filtering device in the execution module, respectively fuzzy output variable is carried out the ambiguity solution computing, obtain the control signal parameter for above-mentioned three kinds of different function requirements, export execution module to.
Compared with prior art, the present invention has following advantage and effect:
1. the variation that the gas detecting element in the odor detection module can occasion used according to the invention is selected accordingly, communal bathroom to contain ammonia as main use occasion, select the quick resistance of ammonia as detecting element; When the use occasion of monitoring coal gas or other gases, can select the detecting element of coal gas or other gases.Application of the present invention has obtained expansion.
2. the present invention is by main controller module output display signal and control signal.Shows signal can show in real time in this locality gas concentration and content, also can be sent to remote port by the signal of communication change-over circuit, carries out remote real-time monitoring, for a plurality of detected occasion in the centralized management building provides condition.Control signal can accurately be controlled execution module.
3. by accepting the control signal of main control module, execution module is accurately controlled respectively three performance elements (freshener releasing device, exhaust blower, active carbon filtering device) wherein, to reach the variation according to monitored gas concentration and content, automatically accurately control monitored occasion circulation of air speed, air filtration speed and freshener release time and releasing dosage are big or small, reach the purpose of saving resource and energy consumption.
Description of drawings
Fig. 1 is intelligent freshener releaser main assembly structure principle chart of the present invention;
Fig. 2 is the application example sketch map of intelligent freshener releaser;
Fig. 3 is the workflow diagram of Master control chip among the embodiment;
Fig. 4 is the core algorithm flow chart of Master control chip among the embodiment.
The specific embodiment
Below in conjunction with accompanying drawing implementation of the present invention is described further, but enforcement of the present invention and protection domain are not limited to this.
A kind of intelligent freshener releaser, it consists of as shown in Figure 1, mainly comprises following three modules:
The odor detection module is made of gas sensitive detector, and this module is converted into the signal of telecommunication with the gas concentration and content signal of detected object.
Main controller module is comprised of Master control chip, resistance levels change-over circuit, signal of communication change-over circuit, DC-isolation drive circuit, interchange isolated drive circuit, local display device and control signal output interface.This module is processed the signal of telecommunication of the representative different odor concentration content that the odor detection module sends, and sends shows signal and control command, to realize showing gas concentration and the work of control execution module;
Execution module, by the freshener releaser that is subjected to pulse signal control, be subjected to the signal Control exhaust blower, formed by the active carbon filtering device of pulse width modulating technology (PWM) signal controlling.This module is used for carrying out the control command that main controller module sends over, the start and stop of the freshener releaser in the realization execution module, exhaust blower, active carbon filtering device.
1. odor detection module.This module selects ammonia gas sensor (ammonia photosensitive elements) as detecting element, this detector shows different resistance values in different ammonia concentrations, be convenient to transfer signals in the master controller and analyze, and the odor concentration state carried out Digital Calibration, and then air exhauster and the air freshener release of toilet are controlled automatically.In order to be applied to other occasions, also can select as required other gases (for example coal gas) detector as detecting element, to enlarge use of the present invention field.
2. main controller module.This module receives the level signal that the odor detection module transmits, and by the core algorithm of internal mode fuzzy control system, makes a concrete analysis of out the ammonia concentration situation, thereby exports different control signals with the control execution module.This module also output display signal can demonstrate the ammonia concentration data at the scene to local display device; This shows signal also is sent to the communication line conversion equipment, is sent to remote control terminal by this conversion equipment, to realize remote real-time monitoring.Be to realize the conversion of analog/digital signal, this module select can self-programming single-chip microcomputer as Master control chip whole system is carried out master control, and adopt pulse width modulating technology (PWM), have timing function and fuzzy control function.
Fig. 3 is the detailed operation flow process of Master control chip, and the work of Master control chip comprises: a mastery routine that circulates all the time, three timings (being respectively 1 second, 0.2 second, 0.01 millisecond) interrupt routine and a serial ports interrupt routine.
3. execution module.This module is carried out concrete deodorization functions according to the signal of the varying strength that receives controller output, with the most effective realization function separately; Determine that this module adopts three kinds of concrete performance elements, is respectively:
1) freshener releasing device.The size of air freshener releasing dosage is mainly controlled in this unit according to the control signal of main control module output.The present invention reequips existing enclosed type air freshener releasing device, increases the gauge tap of return pulse signal, and freshener releaser is controlled by pulse signal.Pulse signal by main controller module output is controlled its jet pulse frequency, and then realizes the releasing dosage of Based Intelligent Control freshener.
2) exhaust blower.The control signal of this unit reception main controller module output is controlled the start and stop of exhaust blower.Exhaust blower is subjected to the signal Control, adopts signal relay control exhaust blower, is the driving signal of 10kHz is controlled exhaust blower with the start and stop of control signal relay start and stop with operating frequency.
3) active carbon filtering device.This unit receives the control signal of main controller module output, and the gas flow rate in the control active carbon filtering device can be regulated the intensity size of filtering Absorption according to ammonia concentration automatically to realize active carbon filtering device.Active carbon filtering device is subjected to pulse width modulating technology (PWM) signal controlling, and 12 volt DC drive fan are equipped with at its two ends, and the filtrate of filling defecator can dispose as required, and the present invention adopts active carbon to fill.Employing is controlled the start and stop of the fan in the active carbon filtering device by the control signal of main controller module output and is changed the driving voltage of this fan, to realize the rotating speed control to fan, to change air flow through the flow velocity of active carbon filtering device, reach the purpose of automatically regulating the intensity size of filtering Absorption according to ammonia concentration.
In the present embodiment, system adopts distributed frame.Use PC to do host computer at remote monitoring center 14 and connect with signal of communication change-over circuit 13, utilize man machine interface to be convenient to remote monitoring center 14 and obtain real time data.
Adopt core algorithm, realize fuzzy control, with the input and output obfuscation, make its suitable people's thinking and be convenient to programming, amount of calculation is little.
Below more by reference to the accompanying drawings 2, work process of the present invention is described.
Odor detection module (adopting the quick resistance 2 of ammonia herein) is installed in the space, toilet, monitored space 1, can monitor ammonia concentration by real-time tracking, and transmit detection signal to main control module circuit board 4.Main control module circuit board 4 can be installed in space, toilet, monitored space 1, also can be installed in the control room of distant special use.Three unit of execution module (freshener releaser 9, exhaust blower 10, active carbon filtering device 11) are installed in the space, toilet, monitored space 1, the control command of sending to carry out main control module realizes control circulation of air speed, air filtration speed and freshener release time and releasing dosage size.
One, with typical composition ammonia in the toilet foul smell as detected object, adopt the quick resistance of ammonia (MQ137) Real-Time Monitoring, the output resistance signal, the quick resistance 2 of ammonia is selected the larger installation site of ammonia concentration as required, adopts separately plate-making to be fit to the installation site requirement.Resistance levels change-over circuit 3 is installed on the main controller circuit plate 4, utilizes computing circuit, and resistance signal is converted into voltage signal, is convenient to mould/number conversion.
Two, Master control chip 5 is selected the ATMEGA16 single-chip microcomputer, and this single-chip microcomputer peripheral hardware simply carries the analog digital conversion link.
The task of master controller comprises that the voltage signal of 1. input being come in carries out analog digital conversion, is converted into digital signal.2. input signal is calculated and adjudicated by the fuzzy algorithmic approach that program realizes.3. result of calculation being converted into various pwm control signals is exported by control signal output interface 6.
Three, drive circuit is converted into pwm control signal and drives signal to drive execution module.Drive circuit comprises dc drive circuit 7 and AC driving circuit 8.Freshener releaser 9 and the active carbon filtering device 11 of 7 pairs of execution module of dc drive circuit drive, and utilize the audion that is operated on off state to amplify driving signal, utilize the light couple to drive signal and isolate.Exhaust blower 10 in 8 pairs of execution module of AC driving circuit drives, and uses signal relay with the isolation drive signal.Drive circuit is separately plate-making all, is convenient to replace and keep electrical equipment independence.
Four, three kinds of different performer control toilet abnormal flavour of drive.1. freshener releaser 9 is responsible for the injection air freshener, and the control injection frequency can change odorousness.2. exhaust blower 10 is responsible for control toilet inner air flow speed, to get rid of foul smell and excessive air freshener.3. by the start and stop of controlling the fan in the active carbon filtering device 11 and the driving voltage that changes this fan, realize the air velocity control to the active carbon filtering device 11 of flowing through, reach the purpose of automatically regulating the intensity size of filtering Absorption according to ammonia concentration.
Five, Master control chip 5 is sent to local display device 12 with shows signal, by changing different colours combination and the brightness flop of the lamp in the local display device 12, demonstrates intuitively the gas concentration and content in detected space.
Six, Master control chip 5 can be changed control signal and shows signal through signal of communication change-over circuit 13, and transfers to remote monitoring center 14 by communication line, thereby can realize remote real-time monitoring, and realizes the Centralized Monitoring of a plurality of composition system.
Fig. 3 is the detailed operation flow process of Master control chip, is divided into five parts: a mastery routine that constantly circulates, three timer interrupt routines, a serial ports input interrupt routine.
1.1s timer interrupt routine: 1s Interruption is once opened analog digital conversion and is interrupted, and then 0～3V level of signal conversion module input is done analog digital conversion, is convenient to the processing that mastery routine is carried out fuzzy algorithmic approach.
2. mastery routine: constantly circulation guarantees that system is always in running order after powering on, mainly finish following work: sampled value is carried out filtering, filtered value is carried out obfuscation, utilize fuzzy rule to adjudicate, defuzzification utilizes the result of defuzzification to change controlled quentity controlled variable (dutycycle, triggering cycle).
3.0.01ms interrupt routine: carry out 99～0 counting, open less than or equal to the dutycycle setting value of controlled quentity controlled variable the time when numerical value, finish multi-channel PWM output otherwise close.
40.2s interrupt routine: carry out the counting of N～0, N determines by the triggering cycle, count down to 0 at every turn and just opens freshener releaser and carried out freshener in 0.2 second and discharge.
5 serial ports inputs interrupt routine: read the broadcasting count that host computer sends, if identical with the machine then export corresponding fringe.
Fig. 4 is the mastery routine in the Master control chip self-programming software, and the detailed operation flow process of the core algorithm that adopts is as follows:
1. gas sensor detects monitored target concentration content in the air, output resistance signal (approximately 60K～120K ohm) is given main control module, resistance levels change-over circuit in the main control module is changed the resistance signal that receives, obtain level signal, and the level signal value is converted into the digital quantity of 10 16 systems.Store the digital quantity of nearest 5 collections, choose intermediate value, finish medium filtering.
2. with filtered value, and should value with respect to the variable quantity in the previous moment, carry out obfuscation according to the obfuscation tables of data of correspondence respectively.The fuzzy variable that keeps the obfuscation gained comprises fuzzy attribute and degree of membership.
3. call control parameter list and the fuzzy reasoning program of fuzzy rule, utilize the fuzzy variable that produces after the Fuzzy processing, behind fuzzy reasoning, produce the fuzzy output variable that is used for the action of control execution module.
According to freshener burst size in the execution module require, the parameter request of the different output functions such as active carbon filtering device running requirements and the requirement of exhaust blower running speed, respectively fuzzy output variable is carried out the ambiguity solution computing, obtain the control signal parameter for above-mentioned three kinds of different function requirements, export execution module to.
Claims (7)
1. intelligent freshener releaser, it is characterized in that comprising: the odor detection module that the concentration cont signal of detected object is converted into the signal of telecommunication, the main controller module of the signal of telecommunication control execution module work of the representative different odor concentration content that sends according to the odor detection module, and be used for carrying out the execution module of the control command that main controller module sends over; Described execution module comprises freshener releaser, exhaust blower and active carbon filtering device; Described odor detection module, main controller module and execution module are linked in sequence; Described odor detection module includes gas sensor; Described main controller module comprises Master control chip, resistance levels change-over circuit, signal of communication change-over circuit, DC-isolation drive circuit, exchanges isolated drive circuit, output control interface and local display device; Main controller module receives the odor detection signal that the odor detection module transmits, exhibit flavour detection signal in local display device, and to the execution module transmitting control commands; Resistance levels change-over circuit in the main controller module is connected with the gas sensor of odor detection module, is that level signal is sent to Master control chip with the conversion of signals that receives; The signal of communication change-over circuit is connected with Master control chip, and the signal of communication that Master control chip is sent is converted to the shows signal that is fit to long-range displaying device and is sent to long-range displaying device; Local display device is connected with Master control chip, shows the shows signal that Master control chip sends; The input of DC-isolation drive circuit is connected with Master control chip by output control signal output interface, receive the control signal that Master control chip transmits, the DC-isolation drive circuit directly is connected with execution module or is connected with execution module by exchanging isolated drive circuit.
2. intelligent freshener releaser according to claim 1 is characterized in that described execution module comprises freshener releaser, exhaust blower and activity carbon filtering device; Execution module is connected with main controller module, receives the control command that main controller module sends, and according to the start and stop action of control command execution to freshener releaser, exhaust blower and active carbon filtering device.
3. the operation method of an intelligent freshener releaser is characterized in that comprising:
Step 1: the odor detection module is monitored the concentration of the monitoring target gas of the occasion of monitoring, and sends monitor signal to main control module;
Step 2: main control module is processed the described monitor signal of step 1, through being converted to level signal and being converted into digital quantity and finishing medium filtering, filtered value is carried out Fuzzy processing, obtains fuzzy variable; Call the fuzzy reasoning program, fuzzy variable is carried out fuzzy reasoning, draw the fuzzy output variable for the action of control execution module; According to the difference control requirement of three performance elements of execution module, respectively fuzzy output variable is carried out the ambiguity solution computing, obtain the control signal parameter of difference in functionality, export execution module to;
Step 3: execution module receiving step two described control signal parameters, carry out control command, realize the start and stop of freshener releaser, exhaust blower and active carbon filtering device in the execution module.
4. operation method according to claim 3, it is characterized in that, wherein step 1 is according to the kind of the main gas-monitoring of monitoring occasion, select corresponding gas sensor, gas concentration in the monitored occasion is monitored, gather gas concentration signal, be converted to resistance signal and be sent to main control module.
5. operation method according to claim 3, it is characterized in that, the monitor signal that resistance levels change-over circuit receiving step one in the step 2 in the main control module transmits, be converted to level signal, and this level signal is sent to Master control chip, treated shows signal and the control command signal of obtaining; Shows signal is sent to local display device and signal of communication change-over circuit, and control command is sent to the DC-isolation drive circuit through the control signal output interface, and the DC-isolation drive circuit is transferred to execution module with control command again.
6. operation method according to claim 3 is characterized in that, the fill order that execution module receiving step two transmits in the step 3 realizes the start and stop of freshener releaser, exhaust blower and active carbon filtering device in the execution module.
7. operation method according to claim 3 is characterized in that in the step 2, and main control module is processed specifically and comprised the steps: stating monitor signal
A. main control module receives gas sensor and detects the resistance signal of exporting according to monitored target concentration content, through being converted to level signal, and the level signal value is converted into digital quantity; Store the data volume of nearest 5 collections, choose intermediate value, finish medium filtering;
B. with filtered value, and should value with respect to the variable quantity in the previous moment, carry out Fuzzy processing, keep the fuzzy variable of obfuscation gained;
C. call the fuzzy reasoning program, the fuzzy variable of utilizing Fuzzy processing to obtain draws the fuzzy output variable of moving for the control execution module through fuzzy reasoning;
D. control the parameter request of the different output functions of requirement and the requirement of exhaust blower running speed according to the requirement of freshener burst size, active carbon filtering device in the execution module, respectively fuzzy output variable is carried out the ambiguity solution computing, obtain the control signal parameter for above-mentioned three kinds of different function requirements, export execution module to.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296240Y (en) * | 1997-01-31 | 1998-11-04 | 王如坚 | Automatic sprayer for aerial fog |
| CN201173905Y (en) * | 2008-04-08 | 2008-12-31 | 杭州电子科技大学 | Chlorine gas concentration on-line monitoring device |
| CN201752509U (en) * | 2010-07-30 | 2011-03-02 | 华南理工大学 | Intelligent freshener releaser |
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| US8591206B2 (en) * | 2008-12-06 | 2013-11-26 | Thomas R. Krenik | Air cycle heat pump techniques and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296240Y (en) * | 1997-01-31 | 1998-11-04 | 王如坚 | Automatic sprayer for aerial fog |
| CN201173905Y (en) * | 2008-04-08 | 2008-12-31 | 杭州电子科技大学 | Chlorine gas concentration on-line monitoring device |
| CN201752509U (en) * | 2010-07-30 | 2011-03-02 | 华南理工大学 | Intelligent freshener releaser |
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