KR100755144B1 - Refrigerator for wireless data communication with sensor for detecting condition of stored food - Google Patents

Refrigerator for wireless data communication with sensor for detecting condition of stored food Download PDF

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KR100755144B1
KR100755144B1 KR1020060050000A KR20060050000A KR100755144B1 KR 100755144 B1 KR100755144 B1 KR 100755144B1 KR 1020060050000 A KR1020060050000 A KR 1020060050000A KR 20060050000 A KR20060050000 A KR 20060050000A KR 100755144 B1 KR100755144 B1 KR 100755144B1
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data
refrigerator
food
sensor
unit
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KR1020060050000A
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Korean (ko)
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김종대
김진아
윤주환
정일형
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엘지전자 주식회사
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/10Preserving with acids; Acid fermentation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D23/00General constructional features
    • F25D23/12Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D29/00Arrangement or mounting of control or safety devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2209/00Arrangements in telecontrol or telemetry systems
    • H04Q2209/40Arrangements in telecontrol or telemetry systems using a wireless architecture
    • H04Q2209/43Arrangements in telecontrol or telemetry systems using a wireless architecture using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee

Abstract

A refrigerator capable of supplying energy to a sensor wirelessly for detecting conditions of stored foods is provided to measure data of the conditions of the stored foods, and to control inside temperature of the refrigerator to be suitable for long period storage of the foods by wirelessly transmitting and receiving energy between a sensor unit and a refrigerator main body. A refrigerator capable of supplying energy to a sensor wirelessly for detecting conditions of stored foods comprises a sensor unit(110), a data transmission unit(120), a data reception unit(210) and a controller(220). The sensor unit is installed in a food container(100), includes a salinity sensor and measures at least more than one data selected from salinity, acidity or temperature. The data transmission unit is installed in the refrigerator, receives measured data from the sensor unit and transmits the measured data wirelessly. The energy reception unit is installed in the refrigerator, receives data wirelessly transmitted from the data transmission unit, and controls inside temperature of the refrigerator.

Description

식품 저장상태 감지용 센서와 무선으로 데이터 통신하는 냉장고{Refrigerator for Wireless Data Communication with Sensor for Detecting Condition of Stored Food} Refrigerator for data communication in food storage state detection sensor and a radio for {Refrigerator for Wireless Data Communication with Sensor for Detecting Condition of Stored Food}

도 1은 본 발명에 따른 냉장고의 일실시예의 개략적인 구성도이고, Figure 1 is one embodiment of a schematic configuration of a refrigerator according to the present invention.

도 2는 도 1의 실시예의 사시도이며, And Figure 2 is a perspective view of the embodiment of Figure 1,

도 3은 도 2의 AA선에서 바라본 부분단면도이고, Figure 3 is a partial sectional view taken along line AA of Figure 2,

도 4는 본 발명에 따른 냉장고의 다른 실시예의 부분단면도이다. Figure 4 is a partial cross-sectional view of another embodiment of a refrigerator according to the present invention.

<도면의 주요 부분에 대한 부호의 설명> <Description of the Related Art>

50 : 식품 100 : 식품용기 50: 100 Food: food containers

110 : 센서부 111 : 측정전극 110: sensor section 111: the measuring electrode

112 : 측정회로 120 : 데이터송신부 112: measurement circuit 120: data transmission unit

130 : 에너지수신부 200 : 냉장고 130: Power receiving unit 200: Refrigerator

210 : 데이터수신부 220 : 제어부 210: data receiving unit 220: control unit

230 : 에너지전송부 300 : 외부전원 230: Power transmission unit 300: an external power source

본 발명은 식품 저장상태 감지용 센서와 무선 데이터 통신하는 냉장고에 관한 것으로, 보다 상세하게는 식품용기에 저장된 식품의 염도, 산도 또는 온도를 측정하기 위해 용기에 설치된 센서부와 냉장고가 무선으로 데이터 통신을 함으로써 최적의 저장 온도를 유지하는 동시에 사용상 편의성을 증대시킨 냉장고에 관한 것이다. The invention food storage state as detected on the refrigerator of the sensor and the wireless data communication for a, more particularly, to a sensor unit and a refrigerator is installed in a container the data communication over the air to measure salinity, pH, or temperature of the food stored in the food container by the present invention relates to a refrigerator which increases the convenience in use while maintaining the optimum storage temperature.

식품의 저장에는 냉장고가 널리 사용된다. Refrigerator storage of food, are widely used. 냉장고는 식품의 저장성을 향상시키기 위해 그 내부를 상온 이하의 저온으로 유지하는 일반적인 기능을 가진다. Refrigerator has the general function to maintain the inside to improve the storability of the food at a low temperature of room temperature or less. 그러나 생활수준이 향상되고 식생활이 다양해지면서 단순한 저장성 향상 이외의 부가기능들을 갖춘 냉장고가 요구되고 있다. However, it is improves the standard of living and a refrigerator equipped with additional functions other than the mere preservation needs improvement As a diversified diet. 예컨대 염장식품과 같이 염도에 따라 저장성이 결정되는 식품에 대해서는 염도에 따라 저장 온도를 바꿀 수 있어야 하며, 발효식품과 같이 발효도에 따라 그 맛이 결정되는 식품에 대해서는 발효도를 제어할 수 있어야 한다. For example, depending on the salinity as salted food and must for food products preservation it is determined to change the storage temperature with the salt, depending on the fermentation also as fermented food should be able to control the fermentation even for foods that taste determined .

염장식품이란 소금을 첨가하여 저장성을 높인 식품을 통칭하는 것으로서, 대표적으로 피클, 햄, 베이컨, 김치, 단무지, 젓갈 등이 있다. Referred to as the salted food products is by the addition of salt with improved storability, typically there is a pickle, ham, bacon, sauerkraut, radish, salted fish, etc. 그러나 소금의 과잉 섭취가 건강에 좋지 않으므로 최근의 염장식품은 대개 소금량을 줄여서 만들기 때문에, 염장 자체만으로는 저장성 향상이 완전하지 못하여 저온 저장하는 경우가 많다. However, due to excessive intake of salt to make reducing the amount of salt Recent salted foods are usually not good for health, salted itself alone often cold storage failure to improve storability is complete. 식품의 염도에 따라 저장 온도가 결정되므로 염장식품에서는 염도를 측정하는 것이 중요하다. Since the storage temperature of the food based on the salinity of salted foods, it is important for measuring the salinity.

발효식품은 젖산균이나 효모 등 미생물의 발효 작용을 이용하여 만든 식품으 로서, 발효가 진행됨에 따라 산도와 맛이 달라진다. Fermented foods are made using lead as a food fermentation of microorganisms such as lactic acid bacteria and yeast, which acidity and flavor depend on the fermentation progresses. 또한 발효 작용를 하는 미생물의 종류에 따라 발효에 적당한 온도가 다르고, 사람에 따라 취향이 다르므로 같은 발효식품이라도 선호하는 발효의 정도는 각기 다를 수 있다. In addition, different fermentation jakyongreul suitable temperature for fermentation, depending on the type of microorganisms, the degree of fermentation that because tastes are different, even the same preferred fermented food according to each person may be different. 발효식품은 발효가 진행되면서 산도가 변하는 것이 많으므로, 발효의 정도는 식품의 산도를 측정하여 판단할 수 있는 경우가 많다. Since fermentation is a fermentation process as many changes to the pH, the degree of fermentation in many cases can be determined by measuring the pH of the food.

한편 김치와 같이 염장식품인 동시에 발효식품인 경우에는 염도 및 온도에 따라 발효의 진행속도가 달라지며, 발효의 진행 정도는 산도를 측정하면 알 수 있으므로, 염도를 측정하여 저장에 적당한 온도를 설정하고, 산도를 측정하여 발효의 정도를 파악한 다음, 발효를 더 진행시키기 위해 필요하다면 저장 온도를 재설정해 주어야 한다. In the case of salting food is simultaneously fermented food such as Kimchi is becomes the progression of the fermentation depend on the salinity and temperature, the progress of the fermentation it can be seen by measuring the pH, and by measuring the salinity setting an appropriate temperature for storage and, if necessary, to measure the pH further proceeds to identify the degree of fermentation, and then fermentation must reset the stored temperature.

또한 발효는 발열을 수반하는 예가 많은 만큼, 식품의 온도가 목표하는 저장 온도에 도달하였는지를 점검해야할 필요도 생긴다. In addition, the fermentation is accompanied by a number of examples of the heat generation occurs also needs to check whether reach the storage temperature, the temperature of the target food.

따라서 통상적으로 식품을 보관하는 냉장고에 식품의 저장상태, 즉 염도, 산도 및 온도를 측정할 수 있는 수단이 구비되어 있다면, 최적의 저장 조건을 조성할 수 있게 된다. Therefore, if the refrigerator is typically provided to hold the food storage state, that is a means capable of measuring the salinity, pH and temperature of the food, the optimum storage conditions to allow the composition.

이와 같은 식품의 저장상태 중 대표적으로 염도를 측정하는 방식을 살펴보면, 다음에 설명하는 바와 같이 크게 세가지가 알려져 있다. Looking at the state of this storage method, which typically measures the salinity of the food, the three kinds of the known significantly as explained in the following.

첫번째는 굴절률 측정방식으로, 레이저 모듈에서 발생된 빛을 광투과성의 측정 대상물에 조사하면 빛이 굴절하게 되는데, 측정 대상물의 염도에 따라 굴절률이 변화하므로 이를 이용하여 측정 대상물의 염도를 계산해 내는 방식이다. The first is the refractive index measuring method, irradiated with the light emitted from the laser module to the object to be measured in the light transmission there is the light is refracted, so a refractive index changes according to the salinity of the measurement object is a method that calculates the salinity of the object to be measured by using this, .

두번째는 염소이온(Cl - ) 농도 측정방식으로, 측정 대상물에 은이온(Ag + )을 포함한 시약을 투여한 뒤, 침전되는 염화은(AgCl)의 양을 통해 염소이온의 농도를 계산하고, 이 값으로부터 염도를 구하는 방식이다. The second chloride ion (Cl -) concentration of the measurement method, the object to be measured on is then treated with a reagent containing ions (Ag +), and calculating the concentration of the chloride ions over the amount of silver chloride (AgCl) which is precipitated, and the value from the system to obtain the salts.

세번째는 전기전도도 측정방식으로, 측정 대상물의 이온 농도에 따라 전기전도도가 변화하는 것을 이용하는데, 한 쌍의 전극을 측정 대상물에 접하게 하고 전극에 전압을 인가한 뒤, 전류를 측정하여 염도를 구하는 방식이다. Third, the electrical conductivity measurement methods, in use to the electrical conductivity changes in accordance with the ion concentration of the object to be measured, exposed to a pair of electrodes on the object to be measured and then applying a voltage to the electrode, a method by measuring a current to obtain a salinity to be.

이들 중 굴절률 측정방식은 측정 대상물의 굴절률이 염도 뿐 아니라 온도의 영향도 받으므로, 온도에 따른 굴절률 변화를 별도로 측정하여 보상해주어야 하고, 광학계를 사용하므로 경제성이 떨어진다는 문제점이 있다. The refractive index measuring method of the refractive index is a problem is because as well as the salts, have also the influence of temperature, haejueoya compensation by measuring the refractive index change following the temperature separately and using the optical system, so the economic efficiency drop of the measurement object. 또한 굴절률 측정방식은 해수의 염도를 측정하기 위해 널리 사용되는 방식으로서 여러가지 성분이 혼재하는 식품에 대해서는 적용하는 것이 거의 불가능한 것으로 알려져 있다. In addition, the refractive index measurement method are known to be almost impossible to apply to a popular method used to mix the various components food to determine the salinity of the seawater. 염소이온 농도 측정방식은 투입되는 시약이 독성을 가질 수 있으므로 측정 대상물이 식품일 경우에는 적용하기가 곤란하고, 측정 과정이 복잡하며 시간이 많이 소요되는 단점이 있다. Chloride ion concentration measurement methods because there is a reagent to be added may have a toxic when the measurement object is food, the more difficult to apply, and the measurement process is complicated and has the disadvantage that it takes a long time. 따라서 최근에는 빠른 시간 내에 저렴한 비용으로 염도를 측정할 수 있는 전기전도도 측정방식의 염도센서들이 개발되고 있다. Thus, recently, a short time the electric conductivity measurement method salinity sensors that can measure salinity at a low cost within are being developed.

냉장고에 이러한 전기전도도 측정방식의 염도센서, 산도센서 및 기타 필요한 센서를 선택적으로 이식한 종래기술들이 알려져 있다. The prior art are known, selective implantation into these electric conductivity measuring method of the salinity sensors, pH sensors, and other sensors required in the refrigerator. 종래 기술에 따른 냉장고들은 염도센서를 포함한 각종 센서들이 측정한 식품의 저장상태, 즉 염도, 산도 또는 온도에 근거하여 냉장 온도를 제어한다. Refrigerator according to the prior art and controls the temperature of cold storage on the basis of storage conditions, i.e. salts, pH, or temperature of the various sensors measuring the salinity sensors, including food. 그러나 종래 기술에 따른 냉장고들은 다 음에 설명하는 바와 같은 문제가 있다. However, the refrigerator according to the prior art has problems such as that described in the notes.

통상 식품을 냉장고에 직접 저장하면 넣고 꺼내기가 불편하므로, 별도의 용기에 식품을 담은 후 용기 채로 냉장고에 저장하게 된다. When the normal food stored in the refrigerator directly into the eject so uncomfortable, then packed food is stored in a separate container in the refrigerator while the vessel. 특히 김치와 같이 액상 성분을 포함한 염장발효식품은 이와 같은 용기의 필요성이 절대적이다. Salted fermented food containing a liquid component, such as in particular kimchi is absolutely a necessity of this same container.

한편, 센서들 중에서 염도 측정장치, 특히 전기전도도 측정방식의 염도센서는 측정 대상물에 물리적으로 접촉할 수 있어야 하므로, 종래기술의 냉장고들은 용기에 각종 센서를 설치하고 있다. On the other hand, the salinity sensor of salinity measuring device from the sensors, in particular electrical conductivity measurement methods, so must be in physical contact with the object to be measured, a refrigerator of the prior art are installed various sensors in the container. 그러나 사용자가 용기로부터 식품을 꺼내기 위해서는 용기를 냉장고로부터 이탈시키기 마련인 바, 용기에 설치된 센서로부터 냉장고의 온도를 제어하는 제어부로 데이터를 안정적으로 전달할 수 있는 수단이 구비되어야 한다. However, the user should be directed to retrieve the food from the container having the means to deliver the data to the control unit for controlling the temperature of the refrigerator from the sensor installed in the bar is arranged to release the container from the refrigerator, the container in a stable manner.

그러나 종래 기술에 따른 냉장고들은 용기와 냉장고 사이에 데이터를 송수신할 수 있는 구체적 수단을 제시하지 않고 있다. However, the refrigerator according to the prior art does not provide a specific means capable of transmitting and receiving data between the container and a refrigerator. 다만, 통상의 전기적 접속 수단을 고려한다면 냉장고의 제어부로부터 용기의 센서에 이르기까지 도선으로 연결하거나, 냉장고와 용기에 각각 접촉단자를 형성하는 등의 기술들을 가정할 수 있다. However, if considering the usual electrical connection means can assume a technique such as to form the respective contact terminals for the connection to the wire down to the vessel from the control of the sensor or the refrigerator, a refrigerator and container. 먼저, 도선으로 직접 용기의 센서와 냉장고를 연결하였을 경우, 용기를 이동시킬 수 있는 범위가 심각하게 제한되므로, 실용성이 현저히 떨어진다. First, when direct connection to the sensor and the container of the refrigerator as lead, since the range capable of moving the container severely limits, the practicality significantly reduced. 다음으로, 위 도선의 용기측에서 바라본 말단과 냉장고측에서 바라본 말단에 각각 접촉단자를 설치하고, 용기를 냉장고에 수용했을 때 각각의 접촉단자가 접촉하여 전기적으로 연결되도록 하는 경우, 다습한 냉장고 내부의 환경에서 접촉단자가 부식되기 쉬우므로 내구성이 떨어지는 문제가 있다. Next, when each of installing the contact terminals at the ends as seen from the end with the refrigerator side when viewed from the container side of the upper wire, and receiving the container in the refrigerator case such that each contact terminal is in contact electrically connected to, inside a humid refrigerator because of the environment in the contact terminals are susceptible to corrosion it is falling durability issues. 또한, 통상 용기가 냉장고에 대해 고정되지 않으므로 접점을 안정적으로 유지하기 위한 별도의 수단을 구비하지 않는 이상, 데이터 송수신도 불안정해 진다. Further, it is also unstable above, data transmission and reception, so typically the container is not fixed for a refrigerator that does not include a separate means for holding the contact in a stable manner. 그밖에 용기를 냉장고에 넣을 때마다 용기와 냉장고 각각의 접촉단자가 일치하도록 용기의 위치를 정확히 조정해야하므로 사용상 불편함이 많다. Other every time an the container in a refrigerator because the container and the refrigerator each contact terminal must exactly adjust the position of the vessel to ensure also a lot of inconvenience in use.

본 발명은 상기와 같은 종래기술들의 문제점을 해결하기 위하여 안출된 것으로, 식품이 담긴 용기를 냉장고에 넣거나 냉장고로부터 꺼내는 일이 빈번하더라도, 저장된 식품의 염도, 산도 또는 온도와 같은 저장상태를 측정하여 냉장고의 온도를 적정 수준으로 제어하게 할 수 있는 냉장고를 제공하는 것을 목적으로 한다. The present invention even to be made in view of solving the problems of the prior art, insert the container the food is contained in the refrigerator frequently il take out from the refrigerator, by measuring the storage conditions, such as salinity, pH, or temperature of the stored food refrigerators, such as the and the temperature of an object of the present invention to provide a refrigerator that can be controlled to an appropriate level.

본 발명의 다른 목적은 다습한 환경에서도 신뢰도 높은 데이터 전송이 가능한 냉장고를 제공하는 데에 있다. Another object of the present invention is to provide a high reliability is possible in a high humidity environment, the data transfer refrigerator.

본 발명의 그 밖의 목적, 특정한 장점들 및 신규한 특징들은 첨부된 도면들과 연관된 이하의 상세한 설명과 바람직한 실시예들로부터 더욱 분명해질 것이다. Other objectives, particular advantages, and novel features of the invention will become more apparent from the detailed description and the preferred embodiments below are associated with the accompanying drawings, embodiments of the present invention.

상기한 목적을 달성하기 위하여 본 발명에 따른 냉장고는, 식품용기에 수용된 식품을 보관하기 위한 냉장고에 있어서, 식품용기에 설치되고 식품의 염도, 산도 또는 온도 중 선택된 적어도 하나 이상의 데이터를 측정하는 센서부와, 식품용기에 설치되고 센서부가 측정한 데이터를 입력받아 무선으로 송신하는 데이터송신 부와, 냉장고에 설치되고 데이터송신부로부터 무선으로 송신된 데이터를 수신하는 데이터수신부와, 냉장고에 설치되고 데이터수신부에서 수신한 데이터를 입력받아 냉장고 내부의 온도를 제어하는 제어부를 포함하는 것을 특징으로 한다. Refrigerator according to the present invention in order to achieve the above object, in the refrigerator for storing the food contained in the food container, the sensor unit provided on the food container and the salinity, the acidity or measure at least one data selected among the temperature of the food and, a data transmitting unit for transmitting over the air and install the food container is input to the data sensor unit measurements, and a data receiving unit for installation in a refrigerator and receive data transmitted wirelessly from the data transmission section, is provided in the refrigerator in the data receiver receiving the received data is characterized in that a control unit for controlling the temperature inside the refrigerator.

본 발명에 따른 냉장고는, 식품용기에 설치된 센서부가 냉장고 측으로 무선 데이터 전송을 할 수 있으므로, 식품용기를 냉장고로부터 꺼내거나 넣는 작업에 무관하게 보관된 식품의 저장상태에 관한 데이터를 측정하여 냉장고 측으로 전달할 수 있다. Refrigerator according to the present invention, it is possible to wireless data transmitted to the sensor unit refrigerator installed on a food container, the measurement data relating to a storage state of the independent stored food to take out or put operation a food container from the refrigerator to pass toward the refrigerator can.

본 발명에 따른 냉장고에 있어서, 데이터송신부와 데이터수신부는, 블루투스(Bluetooth), 지그비(Zigbee) 또는 무선인식(RFID) 방식 중 선택된 어느 하나에 따라 데이터를 송수신하는 것을 특징으로 한다. In the refrigerator according to the present invention, the data transmitting apparatus and the data receiving unit it is characterized in that, for transmitting and receiving data in accordance with any selected one of a Bluetooth (Bluetooth), ZigBee (Zigbee) or Radio Frequency Identification (RFID) system.

또한 본 발명에 따른 냉장고에 있어서, 센서부는 전기전도도 측정방식에 따라 염도를 측정하는 염도센서를 포함하는 것을 특징으로 한다. In addition, in the refrigerator according to the present invention, the sensor member is characterized in that it comprises a salinity sensor for measuring the salt according to the conductivity measurement method. 이때 염도센서는, 식품과 직접 접촉하는 한 쌍의 측정전극과, 측정전극에 전압을 인가하고 측정전극에 흐르는 전류를 측정하는 측정회로를 포함하며, 측정전극은, 식품용기의 내면에 그 일면이 노출되도록 매입된 것이 바람직하다. In this case the salinity sensors, comprising a measuring circuit for applying a pair of measuring electrodes and a voltage to the measuring electrode in direct contact with the food, and the measurement of the current flowing between the measuring electrode, the measuring electrode is, the one surface to the inner surface of the food container it is embedded so as to be exposed are preferred. 식품용기의 내면에 매입됨으로써, 측정전극의 마모, 부식에 의한 손상을 최소화할 수 있다. By being embedded in the inner surface of a food container, it is possible to minimize wear, damage caused by corrosion of the measuring electrode.

또한 본 발명에 따른 냉장고는, 센서부 및 데이터송신부가 필요로 하는 전원을 제공하기 위해 식품용기에 설치된 전지를 더 포함할 수 있다. In addition, the refrigerator according to the present invention, may further include a battery installed on a food container to provide power to the sensor unit and the data transmission need. 따라서 센서부 및 데이터송신부는 냉장고와는 분리된 식품용기에 설치되어 있더라도 별도의 전원을 구비하여 전기적으로 구동될 수 있다. Therefore, even if the sensor unit and data transmitter are provided on the food container separate from the refrigerator it can be electrically driven and provided with a separate power source.

이하에서는 첨부의 도면을 참조로 본 발명에 따른 냉장고의 바람직한 실시예를 상세히 설명한다. The following describes in detail a preferred embodiment of a refrigerator according to the present invention with reference to the accompanying drawings.

도 1은 본 발명에 따른 냉장고의 일실시예의 개략적인 구성도이고, 도 2는 도 1의 실시예의 사시도이며, 도 3은 도 2의 AA선에서 바라본 부분단면도이다. 1 is one embodiment of a schematic configuration of a refrigerator according to the invention, Figure 2 is a perspective view of the embodiment of Figure 1, Figure 3 is a partial sectional view taken along line AA of Figure 2;

식품용기(100)는 저장하고자 하는 식품(50)을 직접 수용하기 위한 것이다. Food container 100 is for receiving the food (50) to be stored directly. 식품용기에 수용되는 식품은 고형물이더라도 염도, 산도 또는 온도를 측정이 가능하지만, 특히 염도를 전기전도도 측정방식으로 측정하는 것이 용이하도록 피클, 김치 등과 같은 액상 성분을 포함하고 있는 것이 바람직하다. Food contained in the food container is solid although it is preferred that contains a liquid component, such as salinity, pH, or temperature measurement is possible, in particular the salt is easy to pickle, kimchi for measuring the conductivity measurement method.

식품용기(100)에는 센서부(110)가 설치된다. Food container 100 is provided with a sensor unit 110. The 센서부(110)는 식품의 저장상태, 즉 염도, 산도 또는 온도 중 선택된 적어도 하나 이상의 데이터를 측정하기 위한 것으로, 본 실시예의 센서부(110)는 전기전도도 방식으로 염도를 측정하는 염도센서로 구성된다. Sensor unit 110 stores the state of the food, i.e., salinity, pH, or as to measure one or more data selected at least one of temperature, in this embodiment the sensor unit 110 is composed of a salinity sensor for measuring the salinity by conductivity methods do. 염도센서(110)는 측정 대상물인 식품(50)에 전압을 인가한 뒤, 식품(50)을 통과하는 전류의 양을 측정함으로써 최종적으로 염도를 알아낼 수 있도록 한다. Salinity sensor 110 to finally determine the salinity after a voltage is applied to the food 50, the measurement object, by measuring the amount of current through the food (50). 따라서 염도센서(110)는 측정전극(111)과 측정회로(112)를 포함하는 것이 바람직하다. Thus salinity sensor 110 preferably comprises a measuring electrode 111 and the measurement circuit 112.

측정전극(111)은 식품(50)에 전류를 흐르게 하기 위한 것으로, 한 쌍이 마련된다. The measuring electrode 111 is intended to flow a current to the food (50), it is provided with a pair. 측정전극(111)은 식품용기(100)에 수용된 식품(50)에 직접 접촉할 수 있어야 하므로 식품용기(100)의 내측으로 노출되도록 설치된다. The measuring electrode 111 must be in direct contact with the food (50) contained in a food container 100, it is provided so as to be exposed to the inside of the food (100). 측정전극(111)이 설치되는 구체적인 위치에 대해 도 3은 식품용기(100)의 마주보는 양측벽 하단부에 각각 하나씩 설치된 것으로 도시하였으나, 도 4에 도시한 바와 같이 식품용기(100)의 바닥면에 한 쌍을 나란히 설치하거나, 도 5에 도시한 바와 같이 식품용기(100)의 일측벽 하단부에 한 쌍을 나란히 설치할 수도 있다. Also for the specific location where the measurement electrode 111 is installed. 3 is a bottom surface of the food container 100, a food container 100, as shown in, but each illustrated as one provided on the facing side walls the bottom, Figure 4 of the installing a pair of side by side, or it is also possible to provide the pair on one side wall lower end of the food container 100, as shown in Fig. 5 side by side. 즉, 측정전극(111)은 식품용기의 어느 위치에 설치되더라도 식품용기에 수용된 식품에 직접 접촉할 수 있으면 된다. That is, the measuring electrode 111 is installed, even if it can be done to any position of the food container in direct contact with the food contained in a food container. 다만 식품용기(100)를 세척하는 과정에서 마찰에 의해 손상되는 것을 방지하기 위해, 측정전극(111)은 식품용기(100)의 바닥판이나 측벽에 그 일면만이 노출되도록 매설되는 것이 바람직하다. However, it is to prevent the damage by friction in the course of washing the food container 100, the measurement electrode 111 is preferably embedded so that its one side only and exposed to the bottom plate and a side wall of the food container (100). 한편, 측정전극(111)은 식품(50)과 직접 접촉하므로 식품에 포함된 전해질에 의해 부식될 수 있다. On the other hand, the measuring electrode 111 is in direct contact with the food 50 may be corroded by the electrolyte contained in the food. 따라서 측정전극(111)은 구리, 니켈 등의 금속재질인 모재를 백금으로 도금하여 내식성을 갖도록 제조하는 것이 바람직하다. Therefore, the measuring electrode 111 is preferably coated to a base material of metal such as copper, nickel, platinum, which is prepared having the corrosion resistance.

측정회로(112)는 측정전극(111)에 전압을 인가하고, 식품(50)을 통해 흐르는 전류를 측정하기 위한 회로로서, 식품용기(100)에 매입되거나 식품용기 외부의 임의의 위치에 선택적으로 설치될 수 있다. Measuring circuit 112 is a circuit for applying a voltage to the measuring electrode 111, and measuring the current flowing through the food (50), embedded in the food container 100, or optionally at any position outside the food container It can be installed. 측정회로(112)와 측정전극(111)을 연결하기 위한 도선(111a)은, 도 3에 도시한 바와 같이, 식품용기(100)에 매입되도록 형성할 수도 있지만, 식품용기(100)의 표면에 금속재질을 프린트하여 형성할 수도 있다. On the surface of the measuring circuit 112 and the measuring electrode lead (111a) for connecting (111), as shown in Figure 3, may be formed so as to be embedded in the food container 100, but the food (100) It may be formed by printing a metal material. 프린트에 의해 도선(111a)을 형성하면 제조과정이 간편해지고 제조단가를 낮출 수 있다. If by printing to form a conductor (111a) it may be a manufacturing process becomes easy to lower the manufacturing cost. 측정회로(112)는 식품의 저장상태에 관한 데이터, 즉 염도 데이터를 출력하여 데이터송신부(120)로 전달한다. Measurement circuit 112 to output the data, i.e. the salinity data on the storage state of the food is transmitted to the data transmission unit 120. The 이때의 염도 데이터란 측정전극(111)에 흐르는 전류의 양일 수도 있고, 그 전류량으로부터 환산한 염도일 수도 있다. The salinity of the data field may be that amount of the current flowing through the measuring electrode 111, and may be a salt converted from the amount of current. 후자의 경우에는 염도를 환산하기 위해 필요한 회로 모듈이 측정회로(112)에 포함되어 있어야 한다. In the latter case there must be a circuit module including a measurement circuit (112) necessary to convert the salt. 어느 경우이거나 측정회로(112)의 구체적인 구성은 통상의 회 로설계 기술로서 구현가능하므로 상세한 설명은 생략한다. In either case, either the specific configuration of the measurement circuit 112 may be implemented as a design described in a normal time, so a detailed description thereof will be omitted.

데이터송신부(120)는 측정회로(112)와 함께 식품용기(100)에 매입 설치되거나 식품용기 외부의 임의의 위치에 선택적으로 설치되며, 측정회로(112)로부터 염도 데이터를 전달받아 무선으로 송신한다. Data sources 120 pieces installed on a food container (100) with a measuring circuit (112) or being selectively installed in any position of the outer food container, receiving the salinity data from the measuring circuit 112, and transmits over the air . 데이터 전송의 신뢰도를 향상시키고, 식품용기(100)를 냉장고(200) 내에 어떤 방향으로 수용시키더라도 데이터 전송이 용이하도록 하기 위해, 데이터송신부(120)는 복수 개 설치될 수 있다. Even improve the reliability of the data transmission and the receiving direction in which the food container 100, in the refrigerator 200 in order to facilitate the data transfer, the data transmission unit 120 may be installed a plurality of.

데이터수신부(210)는 냉장고(200)에 설치되며, 데이터송신부(120)에서 무선 전송한 염도 데이터를 수신한다. Data receiver 210 is installed in the refrigerator 200, and receives wireless transmission data from a salinity data transmission unit (120). 여기서 냉장고(200)는 도 2에 도시한 바와 같은 더블도어형(Double Door Type)을 포함하는 것은 물론이고, 원도어형(One Door Type), 슬라이딩 도어형(Sliding Door Type), 커튼 도어형(Curtain Door Type) 등 그 형태를 불문하며, 워크인 타입(Walk In Type)과 같은 대형 냉장고에 이르기까지 그 크기도 불문한다. The refrigerator 200 is, of course, including a double door type (Double Door Type) as shown in Fig. 2, circle door type (One Door Type), the sliding door type (Sliding Door Type), curtain door type ( and regardless of its shape such as Curtain Door type), also regardless of its size to large refrigerator, such as a walk-in type (Walk in type). 데이터수신부(210)는 냉장고(200)의 내측면에 매설되는 것이 바람직하지만, 홈 네트워크 환경을 구축하기 위해 필요하다면 외부 기기와의 추가적인 데이터 송수신이 가능하도록 냉장고(200)의 외측면에 설치될 수도 있다. Data receiving unit 210 may be installed on the outer surface of the refrigerator 200, the additional data communication with the external device, if necessary, to establish a desirable, but a home network environment that is embedded in the inner surface of the refrigerator 200 to be have. 또한 수신율을 향상시키기 위해 데이터수신부(210)는 복수 개가 설치될 수 있다. In addition, the data receiving unit 210 in order to improve the reception rate may be installed plurality dog. 데이터수신부(210)는 수신한 염도 데이터를 냉장고의 제어부(220)로 전달한다. Data receiver 210 delivers the received data to a salinity control unit 220 of the refrigerator.

제어부(220)는 데이터수신부(210)로부터 전달받은 염도 데이터로부터 식품(50)의 상태를 판단하고, 냉장고 내부의 온도를 식품의 보관에 적절한 값으로 제어한다. Control unit 220 controls the temperature inside the transmission received determine the status of the food 50 from the salinity data, and refrigerator from the data receiving unit 210 to an appropriate value in the storage of food. 염도 데이터에 따른 적정 보관 온도는 사전에 제어부(220)에 입력된다. Storage temperature in accordance with the salinity data is input to the controller 220 in advance. 데이터수신부(210)가 제어부(220)로 전달한 염도 데이터가 전류량일 경우에는 제어 부(220)가 이 전류량을 염도로 환산할 수 있도록 제어부(220)에 염도 환산을 위한 회로 모듈을 포함시킬 수 있다. When the data receiving unit 210 salinity data is the amount of current delivered to the control unit 220 has a control unit 220 can include a circuit module for salts in terms of the control unit 220 to be converted to the amount of current to the salts . 이 경우에도 염도를 환산하는 회로 모듈은 통상의 염도 측정장치에 적용된 회로설계 기술로 구현하는 것이 가능하다. In this case, a circuit for converting the salt to the module, it is possible to implement the circuit applied to a conventional measuring salinity in design technology. 또한 획득된 염도 데이터를 통해 냉장고 내부의 온도를 제어하는 구체적인 방법 및 알고리즘도 통상의 기술로 구현할 수 있다. In addition, a specific method and algorithm for controlling the temperature inside the refrigerator via the salinity data obtained can also be implemented with conventional techniques. 한편, 식품의 정확한 염도를 알아야만 냉장고의 온도 제어를 할 수 있는 것은 아니며, 염도를 추정할 수 있는 데이터만 획득할 수 있으면 온도 제어는 충분히 가능하므로, 전류량을 염도로 환산하기 위한 별도의 회로를 측정회로(112) 또는 제어부(220)가 반드시 구비하여야 할 필요는 없다. On the other hand, to know the exact salinity of the food not being able to temperature control of a refrigerator, if it can acquire only the data to estimate the salinity temperature control is therefore sufficiently possible, measuring the separate circuit for converting the amount of current to the salts circuit 112 or the controller 220 is not always necessary to be provided. 다만, 측정한 염도값을 사용자에게 안내하기 위해 표시장치를 통해 사용자에게 안내할 필요가 있을 경우에는 염도 데이터를 정확한 염도값으로 환산하기 위한 회로가 측정회로(112) 또는 제어부(220) 중 어느 하나에 선택적으로 포함되어 있는 것이 바람직하다. However, any of the cases it is necessary to guide the user through the display device for guiding a measuring salinity values ​​to a user, a circuit for converting the salinity data in the correct salinity value measuring circuit 112 or the controller 220, it is a selective preferably contained in an.

이와 같이 데이터송신부(120)와 데이터수신부(210)는 각각 식품용기(100)와 냉장고(200)에 나뉘어 설치되며, 식품용기(100)와 냉장고(200) 사이에 도선, 접촉단자 기타 물리적인 연결장치가 없다. Thus, the data transmission unit 120 and the data receiving unit 210 is installed and separated to each food container 100 and the refrigerator 200, the conductor, the contact terminal other physical connection between the food container 100 and the refrigerator 200 there is no device. 따라서 식품용기(100)를 냉장고(200)로부터 꺼내더라도 식품용기(100)의 이동범위에 제한이 없다. Therefore, even if the take out food container 100 from the refrigerator 200, there is no limit to the range of movement of the food (100). 반면에 데이터송신부(120)와 데이터수신부(210)가 무선으로 데이터를 송수신하므로, 식품용기(100)를 냉장고(200)에 다시 넣으면, 별도의 조치를 취하지 않더라도 데이터송신부(120)가 송신한 염도 데이터를 데이터수신부(210)가 수신할 수 있다. Since the other hand, the data transmitter 120 and data receiver 210 to send and receive data over the air, put back the food container 100, a refrigerator 200, even to take any further action data transmission salinity one 120 is transmitted data has a data receiving unit 210 can receive. 염도 데이터의 전송은 냉장고(200)가 내부의 온도를 적정 수준으로 유지하기 위해 필요한 것이므로, 식품용 기(100)가 냉장고(200)에 수용되어 있는 상태에서만 염도 데이터를 송수신할 수 있어도 온도 제어는 충분히 가능하다. Transmission of salinity data refrigerator 200 even if the can because it is necessary to maintain the internal temperature to an appropriate level and the food (100) for the transmit and receive salinity data only in the state that is contained in the refrigerator 200, the temperature control is it is sufficiently possible. 그러나 데이터송신부(120)와 데이터수신부(210)가 데이터를 무선으로 송수신하는 구체적인 방식에 따라 식품용기(100)가 냉장고(200)로부터 일정거리 이상만 벗어나지 않으면, 식품용기(100)를 냉장고(200)로부터 꺼낸 뒤에도 데이터 송수신을 계속 할 수 있다. However, the data transmitter 120 and data receiver 210 does, depending on the specific method for transmitting and receiving data wirelessly, a food container 100 is departing from only a predetermined distance or more from the refrigerator 200, the refrigerator with food container 100 (200 ) it may continue to transmit data even after taken out from.

데이터송신부(120)와 데이터수신부(210)가 염도 데이터를 무선으로 송수신하는 데에는 여러가지 방식이 적용될 수 있지만, 다음에 설명하는 것과 같은 방식들 중 하나인 것이 바람직하다. Data transmitter 120 and data receiver 210 can be applied There are several ways to send and receive salinity data over the air, but is preferably one of the same way as described in the following.

첫째는 블루투스(Bluetooth) 방식이다. The first is the Bluetooth (Bluetooth) method. 블루투스 방식은 저가의 저전력 단거리 무선 솔루션으로, 간섭에 강하고 상호접속성이 좋아 여러 대의 기기간 동시접속이 가능하다. Bluetooth short-range wireless low-power mode is a low-cost solution, like a strong interconnectivity interference can be multiple simultaneous connections between devices. 따라서 이동단말기 혹은 가전제품에의 탑재가 용이하다. Therefore, it is easy to mount on a mobile terminal or the home appliances.

둘째는 지그비(Zigbee) 방식이다. The second is the ZigBee (Zigbee) method. 지그비 방식 역시 전력소모를 최소화하는 대신 소량의 정보를 소통시키는 개념으로서, 지능형 홈네트워크, 빌딩 등의 근거리 통신 시장과 산업용기기 자동화, 물류, 환경 모니터링, 휴먼 인터페이스, 텔레매틱스, 군사 등에 활용된다. ZigBee approach is also utilized such as the concept of communicating with a small amount of information, instead of minimizing the power consumption, intelligent home networks, local communication and industrial equipment markets such as building automation, logistics, environmental monitoring, human interface, telematics and military. 작은 크기로 전력 소모량이 적고 값이 싸 홈네트워크 등 유비쿼터스 구축 솔루션으로 최근 각광받고 있다. Low power consumption, small size has been recently hailed as the ubiquitous deployment solutions, such as the value of cheap home network.

셋째는 무선인식(Radio Frequency Identification, RFID) 방식이다. The third is a radio frequency identification (Radio Frequency Identification, RFID) system. RFID 방식은 비접촉식 인식시스템의 하나로서 내부 전원 없이 판독기의 전파신호로부터 에너지를 공급받아 동작하는 수동식과, 스스로 작동하기 위해 RF 태그 전지가 내장된 능동식으로 구별된다. RFID system is distinguished by a hand-operated and operated when supplied energy from the radio signals of the reader with no internal power source as a non-contact recognition system, the RF tag embedded battery to operate themselves active expression.

이런 관점에서 수동식 RFID 방식 이외에 블루투스 방식 또는 지그비 방식을 이용하여 무선으로 데이터 통신을 하는 경우에도, 센서부(110)나 데이터송신부(120)를 작동시키기 위해 전원이 필요하다면 식품용기(100)에 전지를 추가로 설치하는 것이 바람직하다. In this respect passive RFID system in addition even when a data communication over the air using the Bluetooth method, or a ZigBee scheme, the sensor unit 110 and the data transmission unit 120, if necessary, the power to operate the cell in a food container (100) the is preferably provided in addition.

그러나 식품용기(100)에 전지를 설치하면 전지의 수명이 다했을 때마다 교체해주어야 하는 단점이 있다. However, when a battery is installed in the food container 100, there is a disadvantage to be replaced should whenever two of the battery has reached the end of its useful life. 또한 외부의 전원과 식품용기(100)를 도선으로 직접 연결하거나, 식품용기(100)와 냉장고(200)에 각각 접촉단자를 대응되게 설치하는 등의 방식은, 앞서 데이터 전송을 위한 일반적인 전기접속 방식과 같이 여러가지 문제점이 있다. In addition, methods such as that installed to correspond to each of the contact terminals for direct connection to an external power source and a food container 100 in a wire or a food container 100 and the refrigerator 200, common electrical connections for the above data transmission system there are several problems as well.

따라서, 센서부(110)에의 전기에너지 공급 또한 데이터 송수신과 마찬가지로 무선으로 수행되는 것이 더욱 바람직하다. Therefore, it is more preferable that the electrical energy supply to the sensor unit 110. In addition, like the data transmission and reception are performed wirelessly.

센서부에 대한 무선 전력 공급을 위하여, 냉장고(200)에는 에너지전송부(230)가 마련되며, 식품용기(100)에는 에너지수신부(130)가 마련된다. For the wireless supply of power to the sensor section, the refrigerator 200, and has an energy transmission unit 230 provided, food container 100 is provided with an energy receiving unit 130 is provided.

에너지전송부(230)는 냉장고(200)에 설치되며, 외부전원(300)과 전기적으로 접속되어 에너지를 공급받고, 공급받은 에너지를 무선으로 전송한다. Energy transfer unit 230 is installed in the refrigerator 200, it is electrically connected to the external power supply 300 being supplying energy, and transmits the received energy supply over the air. 여기서 외부전원(300)은 통상적인 냉장고가 그 작동을 위해 에너지를 공급받는 냉장고 외부의 전원을 가리킨다. The external power supply 300 is a conventional refrigerator indicating the power of the external refrigerator receiving the energy for its operation.

에너지수신부(130)는 식품용기(100)에 설치되며, 무선 전송된 에너지를 수신하여 센서부(110)에 전력을 공급한다. Energy receiving unit 130 is installed in the food (100), receives the wireless transmission of energy to supply power to the sensor unit 110. The

에너지전송부(230)와 에너지수신부(130)가 에너지를 무선으로 송수신하는 구 체적인 방식을 간략히 설명하면 다음과 같다. If the energy transfer section 230 and the energy receiving unit 130, an overview of the sphere volume the method for transmitting and receiving energy wirelessly follows.

첫번째, 에너지전송부(230)에 1차 코일이 형성되어 있고, 1차 코일은 외부전원(300)으로부터 에너지를 공급받아 자기장 변화를 일으키며, 에너지수신부(130)에 2차 코일이 형성되어 있어서, 이 2차 코일이 1차 코일에 의한 자기장 변화에 따라 유도기전력을 발생시키는 방식이다. In the first, and the primary coil to the energy transfer section 230 is formed, the primary coil receives supply energy from an external power source (300) causes a magnetic field gradient, the secondary coil is formed in the energy receiver (130), the secondary coil is a method of generating an induced electromotive force according to magnetic field changes caused by the primary coil.

두번째, 에너지전송부(230)에 마그네트론이 포함되어 있고, 마그네트론은 외부전원(300)으로부터 에너지를 공급받아 전자기파를 방사하며, 에너지수신부(130)에 전자기파수신기가 포함되어 있어서, 이 전자기파수신기가 수신한 전자기파를 전기에너지로 변환시키는 방식이다. Second, it contains a magnetron to the energy transfer section 230, the magnetron method includes the electromagnetic wave receiver to emit an electromagnetic wave, and the energy receiving unit 130 receives supply energy from an external power source 300, an electromagnetic wave receiver receives a method of converting the electromagnetic radiation into electric energy.

세번째, 에너지전송부(230)에 초음파발신기가 포함되어 있고, 초음파발신기는 외부전원(300)으로부터 에너지를 공급받아 초음파를 방사하며, 에너지수신부(130)에 초음파수신기가 포함되어 있어서, 이 초음파수신기가 수신한 초음파를 전기에너지로 변환하는 방식이다. Third, is the energy transfer section 230 includes the ultrasonic wave transmitter, and the ultrasonic transmitter is in the take supply energy from an external power source 300 includes an ultrasonic receiver on and radiating the ultrasound energy receiving unit (130), the ultrasound receiver to the received ultrasonic wave is a method for converting into electrical energy.

즉, 에너지전송부(230)와 에너지수신부(130)는 위 세가지 방식은 중 어느 하나를 선택적으로 이용할 수 있음은 물론, 무선으로 에너지를 송수신할 수 있는 것이라면 위 세가지 방식에 속하지 않더라도 이용할 수 있다. That is, the above three methods are energy transfer unit 230 and the energy receiver 130 is capable of selectively utilizing one of a course, so long as it can transmit and receive energy wirelessly can be used even if the part of the three methods above.

한편, 본 발명에 따른 냉장고가 데이터 송수신 방식으로서 수동식 RFID 방식을 채택한 경우, 판독기의 전파신호로부터 공급받은 에너지를 이용하여 센서부(110)를 작동시킬 수도 있다. On the other hand, when the refrigerator according to the present invention adopts the manual RFID system as a data transmitting and receiving system, it is also possible to operate the sensor part 110 using the energy supplied from the received radio wave signal of the reader. 즉, 데이터송신부(120)와 데이터수신부(210)가 쌍방향 통신을 행할 수 있는 경우에, 데이터송신부(120)는 에너지수신부(130)의 기능 을 겸할 수 있다. That is, when there is a data transmission unit 120 and the data receiving unit 210 can perform two-way communication, data transmission unit 120 may serve as both the functions of the energy receiving unit (130). 마찬가지로 데이터수신부(210)는 에너지전송부(230)의 기능을 겸할 수 있다. Similarly, data receiver 210 may serve as both the function of the energy transmission unit 230.

이하에서는 본 발명에 따른 냉장고의 일실시예의 작동을 설명한다. Hereinafter, explaining the operation of one embodiment of a refrigerator according to the present invention.

사용자가 식품용기(100)에 식품(50)을 담으면, 식품용기(100)에 설치된 측정전극(111)에 염장식품, 특히 염장식품의 액상 성분이 접하게 된다. If the user has a food wall 50 to the food container 100, the liquid component of salted foods, particularly salted food is in contact with the measuring electrode 111 is installed in the food (100). 이때 염장식품은 한 쌍의 측정전극에 모두 접해야 한다. The salted food is tangent to both the measuring electrodes of the pair. 즉, 식품용기(100)의 측벽 바닥부분에 측정전극(111)이 설치되어 있는 경우에는 염장식품의 양이 일정 정도 이상 확보되어야 전류가 흐를 수 있으므로 그 결과로부터 염도를 측정할 수 있다. That is, if the side wall measured electrode 111 to the base of the food container 100 is installed, so that the amount of salting food current to flow must be ensured over a certain level can be used to measure salinity from the result.

측정회로(112)는 한 쌍의 측정전극(111)에 미리 설정된 전압을 인가하고, 인가된 전압에 의해 한 쌍의 측정전극(111) 사이에 흐른 전류를 측정한다. The measurement circuit 112 measures the current flowing between the pair of measurement electrodes 111 in advance is the predetermined voltage, and measure a pair of electrodes by the applied voltage 111 to. 측정된 전류값의 인가한 전압값에 대한 비는 식품(50)의 전기저항이 되며, 이로부터 전기전도도를 연산할 수 있다. Ratio for a voltage value applied to the measured current value is the electrical resistance of the food 50, it is possible to calculate the electrical conductivity from it.

측정회로(112)는 측정된 염도 데이터를 데이터송신부(120)로 전달한다. Measurement circuit 112 transmits the measured data to the data transmission salt 120. 앞서 설명한 바와 같이 염도 데이터란 최종적으로 염도값을 산출할 수 있는 자료가 되는 데이터로서, 측정전극(111)을 통해 흐른 전류값일 수도 있고, 그로부터 연산된 전기전도도일 수도 있으며, 전기전도도로부터 최종적으로 환산된 염도값일 수도 있다. May be a salt of data is a data which the data to finally calculate the salinity values, be the value of the current flowing through the measurement electrode 111, the electrical conductivity calculated therefrom as described above and finally converted from the electrical conductivity the salinity may be a value.

송신부(120)는 염도 데이터를 무선으로 전송한다. Transmitter 120 transmits the data over the air salinity.

이상에서 측정회로(112) 또는 데이터송신부(120)의 작동을 위해 필요한 전기 에너지는 식품용기(100)에 별도로 마련된 전지(미도시) 또는 에너지수신부(130)로부터 공급받을 수 있다. Electric energy necessary for the operation of the measuring circuit 112 or the data transmission unit 120 in the above may be supplied from a battery (not shown) or the energy receiving unit (130) provided separately from the food (100).

송신부(120)에서 무선으로 전송된 염도 데이터는 냉장고(200)의 데이터수신부(210)에서 수신되며, 데이터수신부(210)는 수신한 염도 데이터를 냉장고의 제어부(220)로 전달한다. The salinity data wirelessly transmitted by the transmitter 120 is received by the data receiving unit 210 of the refrigerator 200, a data receiver 210 delivers the received data to a salinity control unit 220 of the refrigerator. 그러면 제어부(220)는 전달받은 염도 데이터를 근거로 하여 냉장 온도를 제어하게 된다. The control unit 220 is control of the cold storage temperature on the basis of data received salts.

앞에서 설명되고, 도면에 도시된 본 발명의 일 실시예는, 본 발명의 기술적 사상을 한정하는 것으로 해석되어서는 안 된다. And it described above, in one embodiment of the invention shown in the drawings, and are not to be construed as limiting the invention. 본 발명의 보호범위는 청구범위에 기재된 사항에 의하여만 제한되고, 본 발명의 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상을 다양한 형태로 개량 변경하는 것이 가능하다. The scope of protection of the present invention is to be limited only by the matters described in the claims, one of ordinary skill in the art to change improvement from the invention in various forms. 따라서 이러한 개량 및 변경은 통상의 지식을 가진 자에게 자명한 것인 한 본 발명의 보호범위에 속하게 될 것이다. Therefore, these modifications and changes will belong to the protection scope of the invention that would be apparent to those of ordinary skill.

이상에서 설명한 바와 같이 본 발명에 따른 냉장고는 센서부와 냉장고 본체 사이에 무선으로 데이터 송수신이 이루어지므로 식품용기를 냉장고로부터 꺼내더라도 식품용기의 이동범위에 제한을 받지 않으며, 다시 식품용기를 냉장고에 넣으면 별도의 조치를 취하지 않더라도 식품의 저장상태 데이터가 냉장고의 제어부로 전달된다. Refrigerator according to the invention as described above is because the data transmission and reception performed wirelessly between the sensor portion and the refrigerator main body, even remove the food container from the refrigerator does not limit the range of movement of the food containers, re-inserting the food container in the refrigerator even to take any further action data storage state of the food is transmitted to the control unit of the refrigerator. 따라서 냉장고의 제어부는 저장된 식품을 보관하기에 적정한 온도로 냉장고 내부의 온도를 제어할 수 있다. Therefore, the control unit of the refrigerator can control the temperature in the refrigerator to an appropriate temperature to keep the stored food.

또한 센서부와 냉장고 본체 사이에 무선 데이터 송수신이 이루어지므로, 센서부와 냉장고 사이의 물리적인 접촉 상태와 무관하게 신뢰도 높은 데이터 전달이 이루어질 수 있으며, 냉장고 내부의 다습한 환경으로부터 아무런 영향을 받지 않고, 식품용기를 냉장고 내의 특정된 위치에 정확히 맞추어 두지 않더라도 염도 데이터의 전송이 가능하므로 사용상 편의성이 현저히 증대된다. In addition, because the wireless data communication established between the sensor section and the refrigerator main body, may be made of a sensor and a physical independently of reliable data transmission and the state of contact between the refrigerator, without being affected from the humid environment inside the refrigerator, even if not precisely match the food container in a particular location within the refrigerator it is available to transmit the data, because the salt in use convenience is remarkably enhanced.

Claims (6)

  1. 식품용기에 수용된 식품을 보관하기 위한 냉장고에 있어서, In a refrigerator to store food contained in a food container,
    상기 식품용기에 설치되고 상기 식품의 염도, 산도 또는 온도 중 선택된 적어도 하나 이상의 데이터를 측정하는 센서부와, And a sensor unit for installation in the food container and the salinity, the acidity or measure at least one data selected among the temperature of the food,
    상기 식품용기에 설치되고 상기 센서부가 측정한 데이터를 입력받아 무선으로 송신하는 데이터송신부와, And a data sending unit for installation in the food container is sent wirelessly receiving the data by the sensor unit measurements,
    상기 냉장고에 설치되고 상기 데이터송신부로부터 무선으로 송신된 데이터를 수신하는 데이터수신부와, And a data receiving unit for installation in the refrigerator and receive data transmitted wirelessly from the data transmission unit,
    상기 냉장고에 설치되고 상기 데이터수신부에서 수신한 데이터를 입력받아 상기 냉장고 내부의 온도를 제어하는 제어부를 포함하고, Is provided to the refrigerator receiving the data received by the data receiving unit and a control unit for controlling the temperature inside the refrigerator,
    상기 센서부는 전기전도도 측정방식에 따라 염도를 측정하는 염도센서를 포함하며, The sensor unit includes a sensor for measuring the salinity salts according to the electrical conductivity measurement methods,
    상기 염도센서는, 상기 식품과 직접 접촉하는 한 쌍의 측정전극과, 상기 측정전극에 전압을 인가하고 상기 측정전극에 흐르는 전류를 측정하는 측정회로를 포함하고, The salinity sensors, to measure a pair of electrodes in direct contact with the food and, by applying a voltage to the measuring electrode comprises a measurement circuit for measuring the current flowing between the measuring electrode,
    상기 측정전극은, 상기 식품용기의 내면에 그 일면이 노출되도록 매입된 것을 특징으로 하는 식품 저장상태 감지용 센서와 무선으로 데이터 통신하는 냉장고. The measuring electrode, food storage state detection refrigerator of data communication with the sensor and for wireless, characterized in that the pieces so that one side is exposed to the inner surface of the food container.
  2. 제1항에 있어서, 상기 데이터송신부와 데이터수신부는, The method of claim 1, wherein the data transmitter and the data receiver,
    블루투스(Bluetooth), 지그비(Zigbee) 또는 무선인식(RFID) 방식 중 선택된 어느 하나에 따라 데이터를 송수신하는 것을 특징으로 하는 식품 저장상태 감지용 센서와 무선으로 데이터 통신하는 냉장고. Bluetooth (Bluetooth), ZigBee (Zigbee) or Radio Frequency Identification (RFID) food storage state detection refrigerator of data communication with the sensor and the radio, characterized in that for transmitting and receiving data in accordance with any selected one of the methods.
  3. 삭제 delete
  4. 삭제 delete
  5. 삭제 delete
  6. 제1항 또는 제2항에 있어서, According to claim 1 or 2,
    상기 센서부 및 상기 데이터송신부가 필요로 하는 전원을 제공하기 위해 상기 식품용기에 설치된 전지를 더 포함하는 것을 특징으로 하는 식품 저장상태 감지용 센서와 무선으로 데이터 통신하는 냉장고. The sensor member and a refrigerator of the data transmission the data communication to the food storage state detection sensor and a radio for further comprising a battery mounted to the food container to provide the power requirements.
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