CN102003996A - Method for identifying shape, size, placing position and temperature of food in micro-wave oven - Google Patents

Method for identifying shape, size, placing position and temperature of food in micro-wave oven Download PDF

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Publication number
CN102003996A
CN102003996A CN2009103063209A CN200910306320A CN102003996A CN 102003996 A CN102003996 A CN 102003996A CN 2009103063209 A CN2009103063209 A CN 2009103063209A CN 200910306320 A CN200910306320 A CN 200910306320A CN 102003996 A CN102003996 A CN 102003996A
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temperature
food
point
scanning
micro
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CN2009103063209A
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Chinese (zh)
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袁准
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CN2009103063209A priority Critical patent/CN102003996A/en
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Abstract

The invention discloses a method for identifying the shape, size, placing position and temperature of the food in a micro-wave oven, which comprises the following steps: judging whether the food is unfrozen, if so, scanning the food, otherwise, scanning and beginning to heat the food; scanning and acquiring the temperature of each point of the food; judging whether the temperature of each point is less than minus 2 DEG C, if so, recording the point and turning to the next step, otherwise, giving up the point and turning to the next step; judging whether the accumulative number of counting is more than 50, if so, beginning to unfreeze, otherwise, returning to the first step for continuing to circulate; scanning and beginning to heat the food; scanning the whole disc one time, and recording the temperatures of all scanning points; carrying out a second scanning on the whole disc, and judging whether the difference between the temperatures of a same scanning point subjected to two scanning is greater than 2, if so, recording the point and turning to the next step, otherwise, giving up the point and turning to the next step; judging whether the accumulative number of counting is more than 50, if so, continuing to monitor the temperature of the food, otherwise, returning to the first step for continuing to circulate. Just through changing the method for acquiring the temperatures fed back by an infrared temperature sensor, the method of the invention can provide an optimal heating temperature for the food in the microwave oven.

Description

Differentiate shape, size, putting position and the method for temperature of food on the micro-wave oven
Technical field
The present invention relates to the parting method of food in a kind of micro-wave oven.Particularly relate to a kind of shape, size, putting position and the method for temperature that can differentiate food on the micro-wave oven accurately.
Background technology
In general, micro-wave oven be food is put into and is sealed after, to the magnetron energized that can produce high frequency waves, and with consequent microwave irradiation to food, make the molecule that constitutes the culinary art thing 1 internal vibration in second 2,400,000,000 5 thousand ten thousand times, the cookware that utilizes the heat of friction that produced that food is cooked whereby.
Micro-wave oven is controlled temperature easily, because each position of food can generate heat simultaneously and can evenly cook all size and variform food, and has the cooking time of saving and multiple advantage such as easy and simple to handle, so be widely used in general family.
As shown in Figure 1, micro-wave oven has the outward appearance of general lineal hexahedral shape, is by external shell 10 that forms the micro-wave oven outward appearance and door 20 integral body that constitute that can shield external shell 10 fronts selectively.
Top and the two sides of external shell 10 are integrally formed, and are fixedly connected on bottom panel and the rear panel (not shown).
In the inside of micro-wave oven, be formed with the cavity 12 of the lineal hexahedral shape of the front openings that can put into food for cooking food, after the container of food is equipped with in the placement of the inside of cavity 12, microwave irradiation to food, is cooked food with this.
In the inside bottom surface of described cavity 12, have the pallet 14 that can support the container that food is housed, pallet 14 links with the motor (not shown) that produces revolving force and rotates, and evenly cooks the food that is positioned on the pallet 14 thus.
The right side of cavity 12 or upside have the control part 30 that comprises a plurality of action buttons 32 and display part 34.Control part 30 is connected with a plurality of parts that are installed in micro-wave oven inside, thus the controlled microwave stove by these parts of control.
The place ahead of cavity 12 openings is provided with door 20.Door 20 is that benchmark is provided with rotationally with the hinge 22 that is positioned at one side top and the bottom, cavity 12 fronts, thus the front of shielding cavity 12 selectively.Door 20 has shielded after the cavity 12, and the microwave that is produced during micro-wave oven work just can not leak into the outside of described cavity 12.
Be provided with approximately in the back of door 20 and be "
Figure B2009103063209D0000011
" door lock 24 of shape vertical section.Door lock 24 will be inserted into the door lock that is formed at cavity 12 fronts and insert 16 li in mouth.Door lock insert mouthfuls 16 be formed on door lock 24 corresponding positions on, have vertically long rectangular shape during from forward observation.
The rear side that inserts mouth 16 at door lock is equipped with micro switch (not shown).Micro switch (not shown) plays the effect that optionally makes lamp (not shown) energising, and door lock 24 is inserted into door lock and inserts 16 li in mouth, controls the power supply of turn-on lamp (not shown) by the interference of door lock 24 ends.Forwards rotary door 20 and with door lock 24 from door insert mouthfuls 16 draw after, the interference of 24 pairs of micro switch of door lock (not shown) can be removed, thus the power supply of turn-on lamp (not shown) and light lamp (not shown).
Usually, collection and the control for temperature in the microwave oven cavity is by being arranged on the infrared temperature sensor that is used to detect the temperature in the microwave oven cavity of upside in the microwave oven cavity.It specifically is the infrared temperature sensor that the upside distribution is provided with n collecting temperature in microwave oven cavity, n is the integer greater than 1, when n infrared temperature sensor is installed, the center of the rotating disk in the central point of n infrared temperature sensor and the microwave oven cavity is corresponding, the Temperature Feedback of diverse location is given control part in the microwave oven cavity that n infrared temperature sensor will collect in real time, and control part is adjusted temperature controlling in the microwave oven cavity according to the temperature of being fed back.But, prior art is just gathered temperature whole in the cavity to the temperature acquisition method in the microwave oven cavity, the temperature to the best of food heating comprises food, container and the overall temperature of glass rotating disk, can not distinguish the temperature of food, so also just can not be provided in microwave oven cavity.And, can not distinguish shape, size and the putting position of food on the micro-wave oven.
Summary of the invention
Technical matters to be solved by this invention is that a kind of shape, size, putting position and the method for temperature that can differentiate food on the micro-wave oven by the scanning of infrared sensor easily is provided.
The technical solution adopted in the present invention is: a kind of shape, size, putting position and method of temperature of differentiating food on the micro-wave oven includes following steps:
1) judges whether to thaw, be to enter next step to scan, otherwise enter by 8 steps that infrared temperature sensor scans and begins to heat that are arranged in the cooking cavity of microwave oven by 8 infrared temperature sensors that are arranged in the cooking cavity of microwave oven;
2) scanning, the temperature of gathering each point;
3) whether the temperature of judging the each point of being gathered is that this point of record enters next step less than-2, enters next step otherwise abandon this point;
4) stored count adds 1;
5) judge that stored count whether greater than 50 times, is to begin to thaw, proceed otherwise return the 2nd step;
6) not to thaw when the 1st step is judged as, then scan and begin food is heated by being arranged on 8 infrared temperature sensors in the cooking cavity of microwave oven;
7) whole sweeping is retouched once, and writes down all analyzing spot temperature;
8) carry out rescan, and whether the temperature difference of judging twice scanning of same analyzing spot being greater than 2, is to enter next step behind this point of record, enters next step otherwise abandon this point;
9) stored count adds 1;
10) whether judging stored count greater than 50 times, is to continue the monitoring food temperature, proceeds otherwise return the 8th step.
Scanned in the step 3 less than-2 to select be the point at food place.
The temperature value of the being had a few reference value as a comparison that is write down will be scanned in the step 7 for the first time.
In the judgement of step 8,, think that promptly this analyzing spot is the point at food place when the temperature value of the each point of scanning for the second time deducts temperature rise>2 that the temperature value of corresponding first round scanning each point obtains.
The every scanning of setting sensor is for 50 times one-period.
Shape, size, putting position and the method for temperature of food on the discriminating micro-wave oven of the present invention, need not change any structure in the former microwave oven cavity, just by changing acquisition method to the real-time temperature of feeding back of infrared temperature sensor, just the shape, size, putting position and the temperature that are positioned at the food of microwave oven cavity effectively can be differentiated, thereby temperature to the best of food heating can be provided in microwave oven cavity.
Description of drawings
Fig. 1 is the microwave oven structure synoptic diagram;
Fig. 2 is the process flow diagram of method of the present invention.
Embodiment
Below, describe shape, size, putting position and the method for temperature of food on the discriminating micro-wave oven of the present invention in conjunction with the accompanying drawings and embodiments in detail.
Shape, size, putting position and the method for temperature of food are to be used at microwave oven cavity with the micro-wave oven that is provided with 8 infrared sensors on the discriminating micro-wave oven of the present invention, described sensor is fixed on the stepper motor, the driven by motor sensor rotates in some angular ranges, the sensor single sweep operation is a line that 8 points are arranged, motor whenever moves once then run-down, when motor has changeed one-period in angle after, sensor also with regard to surface sweeping whole.
As shown in Figure 2, shape, size, putting position and the method for temperature of food on the discriminating micro-wave oven of the present invention include following steps:
1) judges whether to thaw, be to enter next step to scan, otherwise enter by 8 steps that infrared temperature sensor scans and begins to heat that are arranged in the cooking cavity of microwave oven by 8 infrared temperature sensors that are arranged in the cooking cavity of microwave oven;
2) scanning, the temperature of gathering each point;
3) whether the temperature of judging the each point gathered is less than-2 less than-2, be judged as scanned less than-2 to select be the point at food place, write down this point and enter next step, otherwise think not place the point of food, abandon this point and enter next step;
4) stored count adds 1;
5) the every scanning of setting sensor is one-period 50 times, judges that stored count whether greater than 50 times, is to begin to thaw, and proceeds otherwise return the 2nd step;
By seeing in the last method, for thawing, initial operating stage is because food temperature is starkly lower than the temperature of the dish of placing food, so sensor can detect the position at object place accurately, therefore size and temperature, retouch the position and the shape that just can obtain object for 1 time to sweeping.
6) not to thaw when the 1st step is judged as, then scan and begin food is heated by being arranged on 8 infrared temperature sensors in the cooking cavity of microwave oven;
7) whole sweeping is retouched once, and writes down all analyzing spot temperature, will scan the temperature value of the being had a few reference value as a comparison that is write down for the first time;
8) carry out rescan, and whether the temperature difference of judging twice scanning of same analyzing spot is greater than 2,, thinks that promptly this analyzing spot is the point at food place when the temperature value of the each point of scanning for the second time deducts temperature rise>2 that the temperature value of corresponding first round scanning each point obtains.Enter next step after writing down this point, otherwise, think not to be the food loca, abandon this point and enter next step;
9) stored count adds 1;
10) the every scanning of setting sensor is one-period 50 times, whether judges stored count greater than 50 times, is to continue the monitoring food temperature, proceeds otherwise return the 8th step.
By seeing in the last method, for heating, because it is a lot of soon that the food temperature rise ratio is placed the dish of food, after heating a period of time, food temperature can be apparently higher than environment temperature, so sensor also can detect the position of object, big or small shape and temperature accurately, therefore, the position and the shape that just can obtain object for twice retouched in sweeping.

Claims (5)

1. shape, size, putting position and a method of temperature of differentiating food on the micro-wave oven is characterized in that, includes following steps:
1) judges whether to thaw, be to enter next step to scan, otherwise enter by 8 steps that infrared temperature sensor scans and begins to heat that are arranged in the cooking cavity of microwave oven by 8 infrared temperature sensors that are arranged in the cooking cavity of microwave oven;
2) scanning, the temperature of gathering each point;
3) whether the temperature of judging the each point of being gathered is that this point of record enters next step less than-2, enters next step otherwise abandon this point;
4) stored count adds 1;
5) judge that stored count whether greater than 50 times, is to begin to thaw, proceed otherwise return the 2nd step;
6) not to thaw when the 1st step is judged as, then scan and begin food is heated by being arranged on 8 infrared temperature sensors in the cooking cavity of microwave oven;
7) whole sweeping is retouched once, and writes down all analyzing spot temperature;
8) carry out rescan, and whether the temperature difference of judging twice scanning of same analyzing spot being greater than 2, is to enter next step behind this point of record, enters next step otherwise abandon this point;
9) stored count adds 1;
10) whether judging stored count greater than 50 times, is to continue the monitoring food temperature, proceeds otherwise return the 8th step.
2. shape, size, putting position and the method for temperature of food is characterized in that on the discriminating micro-wave oven according to claim 1, scanned in the step 3 less than-2 to select be the point at food place.
3. shape, size, putting position and the method for temperature of food is characterized in that on the discriminating micro-wave oven according to claim 1, will scan the temperature value of the being had a few reference value as a comparison that is write down in the step 7 for the first time.
4. shape, size, putting position and the method for temperature of food on the discriminating micro-wave oven according to claim 1, it is characterized in that, in the judgement of step 8, when the temperature value of the each point of scanning for the second time deducts temperature rise>2 that the temperature value of corresponding first round scanning each point obtains, think that promptly this analyzing spot is the point at food place.
5. shape, size, putting position and the method for temperature of food is characterized in that on the discriminating micro-wave oven according to claim 1, and the every scanning of setting sensor is for 50 times one-period.
CN2009103063209A 2009-08-29 2009-08-29 Method for identifying shape, size, placing position and temperature of food in micro-wave oven Pending CN102003996A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318370A (en) * 2015-09-09 2016-02-10 深圳市福田区青少年科技教育协会 Intelligent environment-friendly microwave oven
CN106647342A (en) * 2015-10-30 2017-05-10 小米科技有限责任公司 Intelligent equipment control method, device and terminal, and intelligent equipment
CN107647789A (en) * 2017-08-16 2018-02-02 广东美的厨房电器制造有限公司 Cooking control method, device and computer-readable recording medium
CN109363485A (en) * 2018-11-05 2019-02-22 深圳拓邦股份有限公司 A kind of cook's machine and its food recognition methods
CN110145769A (en) * 2019-05-30 2019-08-20 广东美的厨房电器制造有限公司 A kind of micro-wave oven and its method for heating and controlling, readable storage medium storing program for executing
CN110513732A (en) * 2019-08-28 2019-11-29 广东美的厨房电器制造有限公司 Food processing apparatus, control method, system and storage medium
CN111743430A (en) * 2019-03-29 2020-10-09 宁波方太厨具有限公司 Food processor and cooking control method thereof

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CN1428541A (en) * 2001-12-25 2003-07-09 乐金电子(天津)电器有限公司 Thawing control device for microwave oven
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US20070116815A1 (en) * 2005-11-19 2007-05-24 Samsung Electronics Co., Ltd. Cooking apparatus and method of the same

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Publication number Priority date Publication date Assignee Title
US5436433A (en) * 1993-03-19 1995-07-25 Goldstar Co., Ltd. Automatic thawing device of microwave oven and control method thereof
JPH07269878A (en) * 1994-03-18 1995-10-20 Lg Electronics Inc Automatic cooking control method of microwave oven
CN1280275A (en) * 1999-07-12 2001-01-17 三星电子株式会社 Defreezing method of microwave oven using infrared sensor
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105318370A (en) * 2015-09-09 2016-02-10 深圳市福田区青少年科技教育协会 Intelligent environment-friendly microwave oven
CN106647342A (en) * 2015-10-30 2017-05-10 小米科技有限责任公司 Intelligent equipment control method, device and terminal, and intelligent equipment
CN107647789A (en) * 2017-08-16 2018-02-02 广东美的厨房电器制造有限公司 Cooking control method, device and computer-readable recording medium
CN109363485A (en) * 2018-11-05 2019-02-22 深圳拓邦股份有限公司 A kind of cook's machine and its food recognition methods
CN111743430A (en) * 2019-03-29 2020-10-09 宁波方太厨具有限公司 Food processor and cooking control method thereof
CN110145769A (en) * 2019-05-30 2019-08-20 广东美的厨房电器制造有限公司 A kind of micro-wave oven and its method for heating and controlling, readable storage medium storing program for executing
CN110145769B (en) * 2019-05-30 2020-07-24 广东美的厨房电器制造有限公司 Microwave oven, heating control method thereof and readable storage medium
CN110513732A (en) * 2019-08-28 2019-11-29 广东美的厨房电器制造有限公司 Food processing apparatus, control method, system and storage medium

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Application publication date: 20110406