CN203671693U - Intelligent range hood - Google Patents

Abstract

An intelligent range hoodcomprises a case, a fan device and an intelligent control system and is characterized in that the intelligent control system comprises a sound collection unit, a sound recognition unit, a startup control unit, a cooking sound output control unit and a power control unit. Compared with the prior art, the intelligent range hood has the advantages as follows: through analysis of sounds in a kitchen, various environmental sounds of the kitchen are detected to judge whether the sounds are made during cooking or not and judge whether the cooking fume amount level corresponding to the cooking sounds, and startup and shutdown of the range hood are set and the revolving speed of the fan is adjusted according to degrees of cooking fume amounts, so that intelligent control on the range hood is realized; thecontrol on the range hood is realized through a sound recognition technology, the implementation cost is relatively low, and a detection device for sound recognition cannot be affected and polluted by smoke easily, so that failure or reduction of the sensitivityof detection equipment can be avoided, the reliable working of the range hood can be guaranteed, and the service life can be prolonged.

Description

A kind of intelligent range hood

Technical field

The utility model relates to a kind of intelligent range hood.

Background technology

Range hood is a kind of kitchen appliance that purifies kitchen environment, has become the requisite cooking apparatus of Modern Family.At present, range hood through the development of more than 20 years, has had large development at home on mounting means and surface structure, and operation control mode also, from traditional mechanical switch, soft-touch control to the interlock of cigarette kitchen range, trends towards Based Intelligent Control day by day on Functional Design.

But, the range hood of cigarette kitchen range linkage work mode can only be controlled according to kitchen range firepower size the corresponding rotating speed of lampblack absorber, and can not according in cooking process as oil temperature put into dish after raising, stir-fry, cover pot, pick up the on-the-spot variation of the culinary arts such as pot cover and carry out intelligence adjusting.For this reason, in prior art if application number is ZL201110033740.1 Chinese invention patent " smoke detection system, lampblack absorber intelligence control system and lampblack absorber intelligent control method " provides a kind of intelligent range hood control system, image in the kitchen that this range hood is taken by analysis, image is carried out to Smoke Detection, and judge the rank of smog, the smoking power of range hood is set according to the degree of smog, thereby reaches the object of Intelligent controlled ventilator.And for example the patent No. is ZL201220202376.7 Chinese utility model " a kind of voice control range hood " provides a kind of voice-operated range hood, its purport provides a kind of clean hygiene, intelligent degree is high, range hood easy to use, this range hood comprises range hood body, also comprise the speech recognition controlled unit being arranged in range hood body, described speech recognition controlled unit comprise be linked in sequence for gathering the front-end processing unit of voice command signal, voice command signal is made to the voice recognition unit of analyzing identification, for receiving the recognition result of voice recognition unit, and the control module of controlling according to recognition result.

Two kinds of intelligent control methods in above-mentioned patent are realized the intelligent operation to range hood by image recognition and voice control respectively, but, the imaging of the video camera (camera) in image recognition technology is subject to the impact of surrounding environment and illumination larger, in one day, the final imaging of different time sections is not identical yet, implementation procedure complexity, cost is high, and because existing image analysis equipment is subject to the impact of cost, technology and subjective factor, cause image recognition rate lower, attainable intelligent degree is not high.And the intelligent operation of realizing for voice control, need manually to input phonetic order range hood is manipulated, this control mode must someone participate in, once people leaves, just cannot carry out rational soot controlling to cooking process, there is certain use limitation.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of without manually participating in and realize the intelligent range hood that cost is low, discrimination is high for above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above adopted technical scheme: a kind of intelligent range hood, include casing, be installed on the blower fan apparatus in this casing and control the intelligence control system of described blower fan apparatus work, it is characterized in that: described intelligence control system includes

Sound collection unit, for gathering various sound;

Acoustic recognition unit, the culinary art sound that whether exists cooking process to produce for identifying sound that described sound collection unit obtains, and export corresponding index signal;

Start control module, according to the index signal of described acoustic recognition unit output, correspondingly control the switching of the blower fan apparatus of range hood;

Culinary art voice output control module, judges the corresponding lampblack absorber amount of smoke of the culinary art sound size that cooking process produces, and exports corresponding automatically controlled signal;

Power control unit, according to the operating power of the Fan Equipment of described automatically controlled signal adjusting range hood.

As preferably, described sound collection unit includes the microphone that can gather sound, and this microphone is arranged at the less position of oil smoke in described range hood.

As preferably, described acoustic recognition unit includes the memory of characteristic that can pre-stored culinary art sound and described culinary art sound is carried out to the algorithm comparator of Data Comparison.

Compared with prior art, the utility model has the advantage of: by analyzing the sound in kitchen, various ambient sounds to kitchen detect, and then judge whether this sound is the sound that cooking process sends, and judge that the corresponding oil smoke magnitude of this culinary art sound is other, the startup of range hood be set or close and regulate the rotating speed of blower fan according to the degree of oil smoke amount, thereby reaching the Based Intelligent Control to range hood; Realize its implementation cost of the control of range hood relatively cheap by voice recognition technology, use more simple, automaticity is high, and, the checkout gear of voice recognition is not easy to be subject to smog to be affected and pollutes and cause checkout equipment to lose efficacy or sensitivity, the reliably working that can guarantee range hood, increases the service life.

Accompanying drawing explanation

Fig. 1 is the structural representation of the range hood intelligence control system of the utility model embodiment.

Fig. 2 is the flow chart of the range hood intelligent control method of the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.

As shown in Figure 1, the present embodiment relates to a kind of intelligent range hood, this range hood includes casing and is installed on the blower fan apparatus in this casing, blower fan apparatus is realized work under the driving of an intelligence control system, and this intelligence control system includes sound collection unit, acoustic recognition unit, startup control module, culinary art voice output control module and power control unit;

Wherein, sound collection unit includes the microphone that can gather sound, and this microphone is arranged at the less position of oil smoke in range hood conventionally, and sound collection unit is for gathering near various sound kitchen or range hood; Acoustic recognition unit include the various culinary art sound of typing in advance property data base memory and culinary art sound is carried out to the algorithm comparator of Data Comparison, particularly, this algorithm comparator can adopt MCU(microprocessor) realize, this acoustic recognition unit contrasts the culinary art sound characteristic data of the data of sound collection unit and pre-stored, the culinary art sound that whether exists cooking process to produce for identifying the sound being obtained by sound collection unit, and there is or not exist the index signal of culinary art sound in output; The output that starts control module and acoustic recognition unit is connected, and the index signal that this startup control module is exported according to acoustic recognition unit is correspondingly controlled the opening or closing of blower fan apparatus of range hood; Culinary art voice output control module carries out categorizing selection to the culinary art sound having obtained, and judges the corresponding lampblack absorber amount of smoke of this culinary art sound size, and exports corresponding automatically controlled signal; Power control unit is connected with the output of culinary art voice output control module, and the amount of smoke rank that this power control unit is exported according to automatically controlled signal regulates the Fan Equipment of range hood to suitable operating power.

As shown in Figure 2, the intelligent control method of the present embodiment range hood can be realized by following steps:

(1), initialize arrange, the property data base of the various culinary art sound of typing in advance in the memory of acoustic recognition unit, range hood is in holding state;

(2), sound collection unit gathers near various ambient sounds range hood by microphone;

(3), the algorithm comparator of acoustic recognition unit contrasts the given culinary art sound of property data base in culinary art sound and the memory of input, when the similarity of the cooking process sound in sound import and memory property data base reaches the rate value of setting, there is the identification signal of culinary art sound in output, and provide the corresponding cooking stage of this culinary art sound, continue next step; In the time that similarity does not reach the rate value of setting, there is not the identification signal of culinary art sound in output, and get back to step (2);

(4), startup control module receives the identification signal of acoustic recognition unit output, and starts the blower fan apparatus of range hood;

(5), starting control module starts after range hood, culinary art voice output control module is selected corresponding amount of smoke order of magnitude according to the corresponding cooking stage of culinary art sound in step (3), and exports the corresponding automatically controlled signal of this amount of smoke size rank;

(6) automatically controlled signal that, power control unit is exported according to culinary art voice output control module regulates the power of the blower fan apparatus of range hood to arrive suitable gear, in cooking process, the process of dish being put into pot after oil temperature raises can produce the sound of " thorn ", produce a large amount of oil smoke simultaneously, when stir-fry the fast process of dish, the process taking the lid of the pot off of people is all the moment that oil smoke is larger, now, range hood is with peak power pump drainage; And cover after pot cover, be more quiet process compared with stir-frying fast, now, range hood is taken out with less power pump drainage; Wherein, the watt level of range hood is adjusted to continuous regulative mode or classification regulative mode, continuously regulative mode can DC frequency-changing speed governing or ac variable frequency speed regulation, also can be the voltage chopping speed governing of alternating current generator, the pump drainage power that is smoke exhaust ventilator is divided into several grades, selects suitable gear according to different cooking process sound.

The present embodiment provides a kind of intelligent range hood based on voice recognition and the intelligent control method of this range hood, the sound that the range hood of the present embodiment can produce according to cooking process, analyze the corresponding cooking stage of this culinary art sound, select needed pump drainage oil smoke amount size according to different cooking stages, and realize the automatic adjusting to range hood pump drainage power simultaneously, can meet the hommization demand of people to cooking process pump drainage oil smoke.

Claims (1)

1. an intelligent range hood, includes casing, is installed on the blower fan apparatus in this casing and controls the intelligence control system of described blower fan apparatus work, it is characterized in that: described intelligence control system includes

Sound collection unit, for gathering various sound, described sound collection unit includes the microphone that can gather sound, and this microphone is arranged at the less position of oil smoke in described range hood;

Acoustic recognition unit, the culinary art sound that whether exists cooking process to produce for identifying sound that described sound collection unit obtains, and export corresponding index signal, this acoustic recognition unit includes the memory of characteristic that can pre-stored culinary art sound and described culinary art sound is carried out to the algorithm comparator of Data Comparison;

Start control module, according to the index signal of described acoustic recognition unit output, correspondingly control the switching of the blower fan apparatus of range hood;

Culinary art voice output control module, judges the corresponding lampblack absorber amount of smoke of the culinary art sound size that cooking process produces, and exports corresponding automatically controlled signal;

Power control unit, according to the operating power of the Fan Equipment of described automatically controlled signal adjusting range hood.

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