CN105159357A - Pressure induction-based electric blanket automatic switching control method - Google Patents
Pressure induction-based electric blanket automatic switching control method Download PDFInfo
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- CN105159357A CN105159357A CN201510516674.1A CN201510516674A CN105159357A CN 105159357 A CN105159357 A CN 105159357A CN 201510516674 A CN201510516674 A CN 201510516674A CN 105159357 A CN105159357 A CN 105159357A
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- electric blanket
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- temperature
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Abstract
The invention discloses a pressure induction-based electric blanket automatic switching control method. An electric blanket includes an electric blanket body, a temperature setting module, a temperature sensor, and a plurality of pressure sensors uniformly arranged on the electric blanket body, wherein the temperature sensor is arranged on the electric blanket body. According to the method, the pressure values of the sensor pressures are obtained; when the pressure value of a certain sensor pressure exceeds a preset pressure threshold value exists on the electric blanket body, the power source of the electric blanket body is switched on; and the heating power of the electric blanket body is adjusted according to the surface temperature of the electric blanket body which is inducted by the temperature sensor and target temperature set by the temperature setting module. The pressure induction-based electric blanket automatic switching control method of the invention has the advantages of simple design and convenient use. According to the pressure induction-based electric blanket automatic switching control method, the switching on and switching off of heating are controlled through pressure induction, and therefore, energy conservation and emission reduction can be realized, and properties, and potential safety hazards can be reduced.
Description
Technical field
The present invention relates to home wiring control field, refer more particularly to a kind of electric blanket automatic switch control method based on pressure sensitive.
Background technology
Electric blanket, has another name called electrical blanket, and be a kind of contact electric heating appliance, it is by special, and the soft cable-styled heating that insulating property reach standard inweaves or sews up in dish serpentine in woollen blanket, during energising and the evolution of heat.Be mainly used in improving when people sleep temperature in quilt to reach heating object.What also can be used for bed clothes goes tide dehumidifying.Its power consumption is few, temperature is adjustable, easy to use, use is extensive, the history of existing more than 100 year.Had at present Novel non radiation electric blanket to obtain national patent, pregnant woman, children, old man can relieved use Nonradiative electric blanket.
Along with the development of science and technology, the application of sensor is increasingly extensive, sensor substitutes people and obtains various information, the ultimate principle of multi-sensor information fusion technology is just as the process of the brain overall treatment information of people, various sensor is carried out message complementary sense and the optimal combination process in multi-level, many spaces, final generation is explained the consistance of observing environment.Multi-source data will be utilized in this process fully to carry out rationally domination and use, and the final goal of information fusion is then the separation observation information obtained based on each sensor, derives more useful informations by, various combinations multi-level to information.This is not only and make use of the mutual crew-served advantage of multiple sensor, and the data in overall treatment out of Memory source improve the intellectuality of whole sensing system.
Pressure transducer is the most widely used a kind of sensor.Traditional pressure transducer is based on the device of physical construction type, and with the deformation indicated pressure of flexible member, but this physical dimension is large, quality weight, and electricity can not be provided to export.Along with the development of semiconductor technology, semiconductor pressure sensor also arises at the historic moment.Be characterized in that volume is little, quality is light, accuracy is high, good temp characteristic.Particularly along with the development of MEMS technology, semiconductor transducer is towards miniaturization, and its power consumption is little, reliability is high.
It is made up of parts such as matrix material, metal strain silk or strain paper tinsel, insulation protection sheet and extension lines.According to different purposes, the resistance of resistance strain gage can be designed by deviser, but the span of resistance should be noted: resistance is too little, required drive current is too large, the heating of foil gauge simultaneously causes the temperature of itself too high, uses, make the change in resistance of foil gauge too large in different environment, output zero point drift is obvious, and zeroing circuit is too complicated.And resistance is too large, impedance is too high, and the electromagnetic interference capability in the anti-external world is poor.About being generally tens Europe to tens kilo-ohm.
Resistance strain gage is a kind of Sensitive Apparatus strain variation on measured piece being converted into a kind of electric signal.It is one of chief component of pressure resistance type strain transducer.What resistance strain gage application was maximum is metal resistance strain gauge and semiconductor gauge two kinds.Metal resistance strain gauge has again thread foil gauge and metal foil-like foil gauge two kinds.Normally being bonded in closely by special bonding agent by foil gauge produces on mechanics strain matrix, when the stressed generation STRESS VARIATION of matrix, resistance strain gage also produces deformation together, and the resistance of foil gauge is changed, thus makes to be added in ohmically voltage and change.The change in resistance that this foil gauge produces when stressed is usually less, and general this foil gauge all forms strain bridge, and is amplified by follow-up instrument amplifier, then is transferred to treatment circuit (normally A/D conversion and CPU) display or topworks.
The principle of work of metal resistance strain gauge is adsorbed on strain resistor on matrix material to produce the phenomenon of change in resistance with mechanical deformation, is commonly called as resistance strain effect.The resistance value R of metallic conductor can be represented by the formula:
R=ρL/S
In formula, ρ is the resistivity of metallic conductor, and S is the sectional area of conductor, and L is the length of conductor.
We are for tinsel strain resistor, when tinsel is by External Force Acting, its length and sectional area all can change, can be easy to find out from above formula, namely its resistance value can change, if when tinsel extends by External Force Acting, its length increases, and sectional area reduces, resistance value just can increase.When tinsel compresses by External Force Acting, length reduces and cross section increases, and resistance value then can reduce.As long as measure the change (normally the voltage at measuring resistance two ends) being added in resistance, strain strain feelings wiry can be obtained.
Should be noted that a lot of problem when selection pressure sensor, such as, the temperature characterisitic of the range of pressure transducer, precision, pressure transducer, chemical characteristic all will be considered, and the operating type of pressure transducer is also the major issue needing to consider.
Such as, when sensor is used for measurement from fluid pressure of the measurement of gaseous tension, situation is just different.Gas is compressible fluid, increases when taking by force and can store certain compression energy, discharge again during decompression with kinetic energy, apply shock wave to sensor elastic membrane.Require that pressure transducer has larger overload capacity.Liquid is incompressible fluid, when pressure transducer is installed, tightens nut and fluid pressure then can be made to increase to over the withstand voltage limit of elastic membrane without compressible space again, cause elastic membrane to be broken.Because this situation occurs repeatedly, also require that pressure transducer has larger overvoltage capabilities.During the work under bad environment of pressure transducer, such as, there are large vibration, impact, large electromagnetic interference (EMI), more strict requirement is proposed to sensor.Not only overvoltage capabilities is strong, and requires that mechanical seal is reliable, and anti-loosening, sensor is installed correct.The lead-in wire of sensor self, pin and outer conductor all should electromagnetic screens in addition, and will shield good earth.In addition, the consistency problem of pressure transducer and fluid being measured medium should be considered.The elastic membrane structure of such as sensor should separate with Korrosionsmedium, has now adopted stainless steel radiation fins sensor, and pressure transmitting medium made by the interior silicone oil of sensor.When sensor detects inflammable, explosive pressure medium, use little exciting current, produce spark, Mars when preventing elastic membrane from breaking, and increase the voltage endurance capability of pressure transducer overcoat.
Existing electric blanket is the on-line operation when being energized generally, and do not judge whether have people above it, sometimes, people can forget the plug pulling out electric blanket, on the one hand, cause the long-time dry run of electric blanket, waste electric energy, on the other hand, be subject to fire, potential safety hazard is very big.
Summary of the invention
Technical matters to be solved by this invention is for defect involved in background technology, provides a kind of electric blanket automatic switch control method based on pressure sensitive.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on the electric blanket automatic switch control method of pressure sensitive, described electric blanket comprises electric blanket body, temperature setting module, temperature sensor and some pressure transducers be evenly arranged on electric blanket body, described temperature sensor is arranged on electric blanket body, and described automatic switch control method comprises following steps:
Step 1), obtains the force value of each pressure transducer;
Step 2), by the target temperature of temperature setting module setting electric blanket;
Step 3), compares the force value of each pressure transducer and the pressure threshold preset;
Step 4), if the pressure transducer having that force value is more than or equal to default pressure threshold, connects the power supply of described electric blanket body;
Step 4.1), obtain the surface temperature of the electric blanket body that temperature sensor senses arrives;
Step 4.2), by step 4.1) in the surface temperature of electric blanket body that gets compare with the temperature threshold preset;
Step 4.2.1), if the surface temperature of electric blanket body is more than or equal to default temperature threshold, reduce the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 4.2.2), if the surface temperature of electric blanket body is less than default temperature threshold, increase the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 5), if there is no force value is more than or equal to the pressure transducer of default pressure threshold, cuts off the power supply of described electric blanket body.
As the further prioritization scheme of electric blanket automatic switch control method that the present invention is based on pressure sensitive, described pressure transducer adopts piezoresistive pressure sensor.
As the further prioritization scheme of electric blanket automatic switch control method that the present invention is based on pressure sensitive, the model of described piezoresistive pressure sensor is MPM380.
As the further prioritization scheme of electric blanket automatic switch control method that the present invention is based on pressure sensitive, described pressure transducer has 9 at least.
As the further prioritization scheme of electric blanket automatic switch control method that the present invention is based on pressure sensitive, the number of described pressure transducer is 16.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. simplicity of design, easy to use;
2. control heater switch by pressure sensitive, energy-saving and emission-reduction, reduce potential safety hazard.
Embodiment
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of electric blanket automatic switch control method based on pressure sensitive, described electric blanket comprises electric blanket body, temperature setting module, temperature sensor and some pressure transducers be evenly arranged on electric blanket body, described temperature sensor is arranged on electric blanket body, and described automatic switch control method comprises following steps:
Step 1), obtains the force value of each pressure transducer;
Step 2), by the target temperature of temperature setting module setting electric blanket;
Step 3), compares the force value of each pressure transducer and the pressure threshold preset;
Step 4), if the pressure transducer having that force value is more than or equal to default pressure threshold, connects the power supply of described electric blanket body;
Step 4.1), obtain the surface temperature of the electric blanket body that temperature sensor senses arrives;
Step 4.2), by step 4.1) in the surface temperature of electric blanket body that gets compare with the temperature threshold preset;
Step 4.2.1), if the surface temperature of electric blanket body is more than or equal to default temperature threshold, reduce the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 4.2.2), if the surface temperature of electric blanket body is less than default temperature threshold, increase the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 5), if there is no force value is more than or equal to the pressure transducer of default pressure threshold, cuts off the power supply of described electric blanket body.
Described pressure transducer adopts piezoresistive pressure sensor, and model is MPM380.
Described pressure transducer has 9 at least, is preferably 16.
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-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. based on the electric blanket automatic switch control method of pressure sensitive, described electric blanket comprises electric blanket body, temperature setting module, temperature sensor and some pressure transducers be evenly arranged on electric blanket body, described temperature sensor is arranged on electric blanket body, it is characterized in that, described automatic switch control method comprises following steps:
Step 1), obtains the force value of each pressure transducer;
Step 2), by the target temperature of temperature setting module setting electric blanket;
Step 3), compares the force value of each pressure transducer and the pressure threshold preset;
Step 4), if the pressure transducer having that force value is more than or equal to default pressure threshold, connects the power supply of described electric blanket body;
Step 4.1), obtain the surface temperature of the electric blanket body that temperature sensor senses arrives;
Step 4.2), by step 4.1) in the surface temperature of electric blanket body that gets compare with the temperature threshold preset;
Step 4.2.1), if the surface temperature of electric blanket body is more than or equal to default temperature threshold, reduce the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 4.2.2), if the surface temperature of electric blanket body is less than default temperature threshold, increase the heating power of described electric blanket body, until the surface temperature of electric blanket body equals default temperature threshold;
Step 5), if there is no force value is more than or equal to the pressure transducer of default pressure threshold, cuts off the power supply of described electric blanket body.
2. the electric blanket automatic switch control method based on pressure sensitive according to claim 1, is characterized in that, described pressure transducer adopts piezoresistive pressure sensor.
3. the electric blanket automatic switch control method based on pressure sensitive according to claim 2, is characterized in that, the model of described piezoresistive pressure sensor is MPM380.
4. the electric blanket automatic switch control method based on pressure sensitive according to claim 1, it is characterized in that, described pressure transducer has 9 at least.
5. the electric blanket automatic switch control method based on pressure sensitive according to claim 4, is characterized in that, the number of described pressure transducer is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510516674.1A CN105159357A (en) | 2015-08-21 | 2015-08-21 | Pressure induction-based electric blanket automatic switching control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510516674.1A CN105159357A (en) | 2015-08-21 | 2015-08-21 | Pressure induction-based electric blanket automatic switching control method |
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| CN105159357A true CN105159357A (en) | 2015-12-16 |
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| CN201510516674.1A Pending CN105159357A (en) | 2015-08-21 | 2015-08-21 | Pressure induction-based electric blanket automatic switching control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017124251A1 (en) * | 2016-01-18 | 2017-07-27 | 王志强 | Temperature matching-based heating method, and automatically heating electric blanket |
| WO2017124249A1 (en) * | 2016-01-18 | 2017-07-27 | 王志强 | Statistical method for technology usage count during temperature matching heating, and electric blanket |
| CN107484270A (en) * | 2017-06-29 | 2017-12-15 | 深圳市赛亿科技开发有限公司 | Electric blanket and its control method |
| CN108668387A (en) * | 2018-04-08 | 2018-10-16 | 芜湖职业技术学院 | Intelligent electric blanket |
| CN109302754A (en) * | 2018-09-30 | 2019-02-01 | 安徽信息工程学院 | A kind of intelligent electric blanket and its control method |
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| CN201119670Y (en) * | 2007-11-06 | 2008-09-24 | 上海理工大学 | Intelligent energy-saving electric heating blanket with spring piece type pressure switch |
| CN103005937A (en) * | 2012-12-18 | 2013-04-03 | 上海电机学院 | Electric blanket with function of automatic temperature control by pressure induction |
| CN202891333U (en) * | 2012-11-28 | 2013-04-24 | 白晟瑞 | Induction type electric blanket |
| CN203789583U (en) * | 2014-04-25 | 2014-08-27 | 安徽师范大学 | Electric blanket with automatic temperature and heating position adjusting function |
| CN104337297A (en) * | 2014-10-14 | 2015-02-11 | 苏州德鲁森自动化系统有限公司 | Intelligent electrically-controlled electric blanket |
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2015
- 2015-08-21 CN CN201510516674.1A patent/CN105159357A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119670Y (en) * | 2007-11-06 | 2008-09-24 | 上海理工大学 | Intelligent energy-saving electric heating blanket with spring piece type pressure switch |
| CN202891333U (en) * | 2012-11-28 | 2013-04-24 | 白晟瑞 | Induction type electric blanket |
| CN103005937A (en) * | 2012-12-18 | 2013-04-03 | 上海电机学院 | Electric blanket with function of automatic temperature control by pressure induction |
| CN203789583U (en) * | 2014-04-25 | 2014-08-27 | 安徽师范大学 | Electric blanket with automatic temperature and heating position adjusting function |
| CN104337297A (en) * | 2014-10-14 | 2015-02-11 | 苏州德鲁森自动化系统有限公司 | Intelligent electrically-controlled electric blanket |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017124251A1 (en) * | 2016-01-18 | 2017-07-27 | 王志强 | Temperature matching-based heating method, and automatically heating electric blanket |
| WO2017124249A1 (en) * | 2016-01-18 | 2017-07-27 | 王志强 | Statistical method for technology usage count during temperature matching heating, and electric blanket |
| CN107484270A (en) * | 2017-06-29 | 2017-12-15 | 深圳市赛亿科技开发有限公司 | Electric blanket and its control method |
| CN108668387A (en) * | 2018-04-08 | 2018-10-16 | 芜湖职业技术学院 | Intelligent electric blanket |
| CN109302754A (en) * | 2018-09-30 | 2019-02-01 | 安徽信息工程学院 | A kind of intelligent electric blanket and its control method |
| CN109302754B (en) * | 2018-09-30 | 2021-11-26 | 安徽信息工程学院 | Intelligent electric blanket and control method thereof |
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Application publication date: 20151216 |
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