CN102636433A - Food freshness detecting device and refrigerator using same - Google Patents
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Abstract
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Translated fromChinese技术领域technical field
本发明涉及一种智能食品检测装置，具体地说，是涉及一种食品新鲜程度检测装置及采用该装置的冰箱。The invention relates to an intelligent food detection device, in particular to a food freshness detection device and a refrigerator using the device.
背景技术Background technique
冰箱自发明至今经历了几十年的历史，现在的冰箱存储空间越来越大，存储功能越来越多，用户在使用冰箱时，通常会在冰箱内储存众多品类的新鲜食品。这样随之而来的问题是很多用户会经常忘记放置在冰箱内各种食品的保质期，往往等到发现食品严重腐败被发现时，为时已晚，不能食用。不仅造成了腐败食品的丢弃浪费，同时腐败的食品所散发出的乙烯、氨气等气体也加速了舱室内其他食品的腐败，导致更大的浪费。It has been decades since the invention of the refrigerator. Nowadays, refrigerators have more and more storage space and more and more storage functions. When users use refrigerators, they usually store many types of fresh food in the refrigerator. The problem that follows like this is that many users often forget the shelf life of various foods placed in the refrigerator, and when they often wait until the serious corruption of the food is discovered, it is too late and cannot be eaten. Not only caused the discarding waste of spoiled food, but also the ethylene, ammonia and other gases emitted by spoiled food also accelerated the spoilage of other foods in the cabin, resulting in greater waste.
为了能够提醒用户食品的保质期临近，有一些冰箱带有RFID扫描功能，授权公告号为CN 201837198U的实用新型专利公开了一种智能冰箱，包括设有控制模块、识别设有RFID芯片的物品的天线、RFID阅读器和显示屏的RFID控制系统，RFID控制系统通过天线接收储存在冰箱内的设有RFID芯片的食品信息，并通过RFID阅读器译码后输入到控制模块进行处理并且将显示结果显示到显示屏上。该种冰箱的缺点是利用RFID扫描原理，只能针对有电子标签的食品进行扫描。此外，由于一些时鲜的果蔬产品，在搬运过程中容易受到外力的挤压等，会发生急剧的结构变化，造成局部腐败，乃至加速整个水果的腐败变质，电子便签却不能记录此种变化，导致信息错误。In order to remind users that the shelf life of food is approaching, some refrigerators have RFID scanning functions. The utility model patent with the authorized announcement number CN 201837198U discloses a smart refrigerator, including a control module and an antenna for identifying items with RFID chips. , RFID reader and the RFID control system of the display screen, the RFID control system receives the food information with the RFID chip stored in the refrigerator through the antenna, and decodes it through the RFID reader and then inputs it to the control module for processing and displays the display results to the display. The disadvantage of this kind of refrigerator is that it can only scan food with electronic tags by using the principle of RFID scanning. In addition, because some fresh fruit and vegetable products are easily squeezed by external forces during the handling process, they will undergo rapid structural changes, causing partial corruption, and even accelerating the spoilage of the entire fruit. However, electronic sticky notes cannot record such changes, resulting in Error.
基于此，如何研发一种具有检测食品新鲜程度的冰箱，可以主动检测食品新鲜程度，检测结果可靠，是本发明主要解决的问题。Based on this, how to develop a refrigerator capable of detecting the freshness of food, which can actively detect the freshness of food, and the detection result is reliable, is the main problem to be solved by the present invention.
发明内容Contents of the invention
本发明为了解决现有食品新鲜记录装置只能根据保质期提示快过期食品，而不能智能检测变质食品，容易导致信息错误的缺点，提供了一种食品新鲜程度检测装置，以及采用该装置的冰箱，可以主动检测分析变质食品，信息准确。In order to solve the problem that the existing food freshness recording device can only prompt food that is about to expire according to the shelf life, but cannot intelligently detect spoiled food, which easily leads to information errors, the present invention provides a food freshness detection device and a refrigerator using the device. It can actively detect and analyze spoiled food, and the information is accurate.
为了解决上述技术问题，本发明采用以下技术方案予以实现：In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions to achieve:
一种食品新鲜程度检测装置，包括密封材料围成的气体循环采集风道，所述气体循环采集风道上开有气体采集孔和出风口，在所述气体循环采集风道内沿气流方向依次设置有分别与分析控制单元连接的粒子滤波器、吸气装置、以及气体传感器阵列，吸气装置用于将外部气体从气体采集孔吸入到气体循环采集风道内，并且所吸入的气体经过粒子滤波器进行分离，所述粒子滤波器将分离后的气体输送到气体传感器阵列进行浓度检测，由气体传感器阵列将检测数据发送至分析控制单元进行分析，浓度检测后的气体经过出风口排出。A food freshness detection device, comprising a gas circulation collection air duct surrounded by sealing materials, gas collection holes and air outlets are opened on the gas circulation collection air duct, and gas circulation collection air ducts are sequentially arranged along the airflow direction in the gas circulation collection air duct A particle filter, an air suction device, and a gas sensor array respectively connected to the analysis control unit, the air suction device is used to inhale external gas from the gas collection hole into the gas circulation collection air duct, and the inhaled gas passes through the particle filter Separation, the particle filter transports the separated gas to the gas sensor array for concentration detection, the gas sensor array sends the detection data to the analysis control unit for analysis, and the gas after concentration detection is discharged through the air outlet.
进一步的，当分析控制单元分析出某种气体浓度超出正常范围时，为了能够确定是哪种食物腐败变质造成的，所述的食品新鲜程度检测装置还包括至少一个用于检测腐败食品种类的成像检测装置，所述成像检测装置与分析控制单元连接。Further, when the analysis and control unit analyzes that the concentration of a certain gas exceeds the normal range, in order to determine which food is caused by spoilage, the food freshness detection device also includes at least one imaging sensor for detecting the type of spoiled food. A detection device, the imaging detection device is connected with the analysis control unit.
优选的，所述的成像检测装置为太赫兹分光器，其可以发射电磁波对冰箱内食品进行内部分子结构扫描，利用太赫兹成像技术进行成像，并将测量结果发送到分析控制单元。Preferably, the imaging detection device is a terahertz spectrometer, which can emit electromagnetic waves to scan the internal molecular structure of the food in the refrigerator, use terahertz imaging technology to perform imaging, and send the measurement results to the analysis and control unit.
又进一步的，为了方便当确定最终腐败食品时，可以及时进行报警提示，所述的食品新鲜程度检测装置还包括与分析控制单元连接的报警装置，以提示人员及时采取措施，其中，报警装置可以是声音报警也可以是光电报警。Still further, in order to facilitate when the final spoilage food is determined, an alarm prompt can be given in time. The food freshness detection device also includes an alarm device connected to the analysis control unit to prompt personnel to take measures in time, wherein the alarm device can It can be an audible alarm or a photoelectric alarm.
优选的，所述的吸气装置可以采用循环风机实现。Preferably, the suction device can be implemented by a circulating fan.
基于上述的一种食品新鲜程度检测装置，本发明同时提供了一种采用上述食品新鲜程度检测装置的冰箱，包括冷藏室，在所述冷藏室箱体内设置有食品新鲜程度检测装置，所述的食品新鲜程度检测装置包括密封材料围成的气体循环采集风道，所述气体循环采集风道上开有气体采集孔和出风口，在所述气体循环采集风道内沿气流方向依次设置有分别与分析控制单元连接的粒子滤波器、吸气装置、以及气体传感器阵列，吸气装置用于将冷藏室箱体中的气体从气体采集孔吸入到气体循环采集风道内，并且所吸入的气体经过粒子滤波器进行分离，所述粒子滤波器将分离后的气体输送到气体传感器阵列进行浓度检测，由气体传感器阵列将检测数据发送至分析控制单元进行分析，浓度检测后的气体经过出风口排出。Based on the above-mentioned food freshness detection device, the present invention also provides a refrigerator using the above-mentioned food freshness detection device, which includes a refrigerator, and a food freshness detection device is arranged in the refrigerator box. The food freshness detection device includes a gas circulation collection air duct surrounded by sealing materials. The gas circulation collection air duct is provided with a gas collection hole and an air outlet, and a separation and analysis unit is sequentially arranged along the air flow direction in the gas circulation collection air duct. The particle filter connected to the control unit, the suction device, and the gas sensor array, the suction device is used to suck the gas in the refrigerator box from the gas collection hole into the gas circulation collection duct, and the sucked gas passes through the particle filter The particle filter sends the separated gas to the gas sensor array for concentration detection, and the gas sensor array sends the detection data to the analysis control unit for analysis, and the gas after concentration detection is discharged through the air outlet.
若所述的食品新鲜程度检测装置还包括与分析控制单元连接的报警装置，所述的报警装置优选设置在冰箱控制面板中，其中，报警装置可以是声音报警也可以是光电报警。通过设置报警装置，方便当确定最终腐败食品时，可以及时进行报警提示。If the food freshness detection device further includes an alarm device connected to the analysis control unit, the alarm device is preferably set in the refrigerator control panel, wherein the alarm device can be an audible alarm or a photoelectric alarm. By setting the alarm device, it is convenient to give an alarm prompt in time when the final spoilage food is determined.
与现有技术相比，本发明的优点和积极效果是：本发明的食品新鲜程度检测装置利用对食品所散发的气体进行分析，快速判断出是否有变质食品，结果准确，适用于所有食品的新鲜程度检测，而且可以通过进一步的成像检测，快速确定变质食品种类，给用户的使用带来极大方便，装置占用空间小，可以非常方便的安装在存储食物的装置内。Compared with the prior art, the advantages and positive effects of the present invention are: the food freshness detection device of the present invention uses the gas emitted by the food to analyze, quickly judge whether there is spoiled food, the result is accurate, and is applicable to all food Freshness detection, and further imaging detection can be used to quickly determine the type of spoiled food, which brings great convenience to users. The device occupies a small space and can be easily installed in a food storage device.
结合附图阅读本发明实施方式的详细描述后，本发明的其他特点和优点将变得更加清楚。 Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. the
附图说明Description of drawings
图1是本发明所提出的食品新鲜程度检测装置一种实施例结构示意图；Fig. 1 is a kind of structural schematic diagram of embodiment of the food freshness detection device that the present invention proposes;
图2是图1中食品新鲜程度检测装置的侧面视图；Fig. 2 is a side view of the food freshness detection device in Fig. 1;
图3是图1中电路部分控制原理方框图；Fig. 3 is a schematic block diagram of circuit part control in Fig. 1;
图4是本发明所提出的冰箱的一种实施例结构示意图。Fig. 4 is a structural schematic diagram of an embodiment of the refrigerator proposed by the present invention.
具体实施方式Detailed ways
针对目前还没有一种食品新鲜程度检测装置的问题，也即目前的装置只能根据厂家标定的保质期时间进行提醒，很多时候与实际食品新鲜度不符合，造成信息错误，本发明提供了一种食品新鲜程度检测装置，利用对食品所散发的气体进行分析，快速判断出是否有变质食品，而且可以通过进一步的成像检测，快速确定变质食品种类，给用户的使用带来极大方便，装置占用空间小，可以非常方便的安装在存储食物的装置内。Aiming at the problem that there is no food freshness detection device at present, that is, the current device can only remind according to the shelf life time calibrated by the manufacturer, which often does not match the actual food freshness, resulting in information errors. The present invention provides a The food freshness detection device can quickly determine whether there is spoiled food by analyzing the gas emitted by the food, and can quickly determine the type of spoiled food through further imaging detection, which brings great convenience to users. The device occupies The space is small, and it can be very conveniently installed in a food storage device.
下面结合附图对本发明的具体实施方式作进一步详细地说明。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
实施例一，参见图1、图2、图3所示，本实施例的食品新鲜程度检测装置，包括气体循环采集风道1，所述气体采集风道1由密封材料围成，所述气体循环采集风道上开有气体采集孔2和出风口3，在气体采集风道1内沿气流方向依次设置有粒子滤波器4、吸气装置6以及气体传感器阵列5，且粒子滤波器4、吸气装置6以及气体传感器阵列5分别与分析控制单元连接，吸气装置6接受分析控制单元的控制，用于将外部气体从气体采集孔2吸入到气体循环采集风道1内，粒子滤波器4接受分析控制单元的控制，所吸入的气体经过粒子滤波器4按照粒子大小进行分离，气体传感器阵列5同样接受分析控制单元的控制，完成分离后的气体由粒子滤波器4输送到气体传感器阵列5，进行浓度检测，且由其将检测数据发送至分析控制单元进行分析，浓度检测后的气体最终经过出风口排出。气体传感器阵列5是由一组传感器组成，分别用于检测腐败食品散发的有害气体的浓度，比如检测乙烯浓度的乙烯传感器、用于检测硫化氢气体浓度的硫化氢传感器、用于检测氨浓度的氨传感器等。分析控制单元对气体传感器5发送的数据进行分析，判断某种气体浓度是否超出正常范围。其中，所述的吸气装置6可以采用循环风机实现，但并不限于循环风机。
当分析控制单元分析出某种气体浓度超出正常范围时，为了能够确定是哪种食物腐败变质造成的，所述的食品新鲜程度检测装置还包括至少一个用于检测腐败食品种类的成像检测装置7，所述成像检测装置7与分析控制单元连接。也即：当分析控制单元分析出某种气体浓度超出正常范围时，将触发启动成像检测装置7工作，成像检测装置7对附近食品进行内部分子结构扫描，并将测量结果发送到分析控制单元，由分析控制单元与数据库中设定的标准数据进行比对分析，最终确定腐败食品种类。所述的成像检测装置7可以采用太赫兹分光器实现，它能够发射电磁波对冰箱内食品进行内部分子结构扫描，利用太赫兹成像技术进行成像，并将测量结果发送到分析控制单元。整个检测装置的工作频率可以根据用户实际需求进行设置和调节，为保证实际使用效果，一般可以设定为12小时自动检测一次，也可以根据实际需求对此功能进行随意的开启和关闭的设定，操作简单方便，用户很容易掌握。When the analysis and control unit analyzes that the concentration of a certain gas exceeds the normal range, in order to determine which food is spoiled, the food freshness detection device also includes at least one
为了方便当确定最终腐败食品时，可以及时进行报警提示，所述的食品新鲜程度检测装置还包括与分析控制单元连接的报警装置（图中未显示），以提示人员及时采取措施，其中，报警装置可以是声音报警，比如通过安装蜂鸣器实现，也可以是光电报警，比如通过安装LED灯实现。For convenience, when the final spoilage food is determined, an alarm can be given in time. The food freshness detection device also includes an alarm device (not shown in the figure) connected to the analysis control unit to prompt personnel to take measures in time, wherein the alarm The device can be an audible alarm, such as by installing a buzzer, or a photoelectric alarm, such as by installing an LED light.
本装置利用对腐败食品发出的气体进行成分分析，结果准确，适用于所有食品的新鲜程度检测，比如水果、肉类、蛋类、蔬菜类等，简单实用。The device analyzes the composition of the gas emitted by spoiled food, and the result is accurate. It is suitable for the detection of the freshness of all foods, such as fruits, meat, eggs, vegetables, etc. It is simple and practical.
实施例二，基于上述的一种食品新鲜程度检测装置，本发明同时提供了一种采用上述食品新鲜程度检测装置的冰箱，参见图4所示，包括冷藏室8，在所述冷藏室箱体内设置有食品新鲜程度检测装置9，该食品新鲜程度检测装置9具体可以参照图1、图2、图3所示，所述的食品新鲜程度检测装置包括气体循环采集风道1，并且气体采集风道1由密封材料围成，所述气体循环采集风道1上开有气体采集孔2和出风口3，在气体采集风道1内设置有粒子滤波器4、气体传感器阵列5以及吸气装置6，吸气装置6用于将冷藏室箱体内的气体从气体采集孔2吸入到气体循环采集风道1内，并且所吸入的气体经过粒子滤波器4按照粒子大小进行分离，完成分离后的气体由粒子滤波器4输送到气体传感器阵列5，进行浓度检测，气体传感器阵列5与分析控制单元连接，由其将检测数据发送至分析控制单元进行分析，浓度检测后的气体经过出风口排出。其中，气体传感器阵列5是由一组传感器组成，分别用于检测腐败食品散发的有害气体的浓度，比如检测乙烯浓度的乙烯传感器、用于检测硫化氢气体浓度的硫化氢传感器、用于检测氨浓度的氨传感器等。本实施例的食品新鲜程度检测装置还包括分析控制单元，所述气体传感器阵列5与分析控制单元连接，并且将检测到的有害气体的浓度数据发送至分析控制单元，由其进行分析判断某种气体浓度是否超出正常范围。其中，所述的吸气装置6可以采用循环风机实现。
当分析控制单元分析出某种气体浓度超出正常范围时，为了能够确定是哪种食物腐败变质造成的，所述的食品新鲜程度检测装置还包括至少一个用于检测腐败食品种类的成像检测装置，所述成像检测装置与分析控制单元连接。也即：当分析控制单元分析出某种气体浓度超出正常范围时，将触发启动成像检测装置工作，成像检测装置对附近食品进行内部分子结构扫描，并将测量结果发送到分析控制单元，由分析控制单元与数据库中设定的标准数据进行比对分析，最终确定腐败食品种类。所述的成像检测装置可以采用太赫兹分光器实现，它能够发射电磁波对冰箱内食品进行内部分子结构扫描，利用太赫兹成像技术进行成像，并将测量结果发送到分析控制单元。一般情况下，冰箱的冷藏室包括若干层搁架10，有的还包括果蔬盒，由于一个太赫兹分光器的话难以实现多层扫描，因此，优选气体循环采集风道贯穿整个冷藏室，且在对应每一层的位置处都设置一个太赫兹分光器，这样可以有效避免检测盲区，更加全面、彻底。When the analysis and control unit analyzes that the concentration of a certain gas exceeds the normal range, in order to determine which food is caused by spoilage, the food freshness detection device also includes at least one imaging detection device for detecting the type of spoiled food, The imaging detection device is connected with the analysis control unit. That is to say: when the analysis control unit analyzes that the concentration of a certain gas exceeds the normal range, it will trigger the imaging detection device to work, and the imaging detection device will scan the internal molecular structure of nearby foods, and send the measurement results to the analysis control unit. The control unit compares and analyzes the standard data set in the database to finally determine the type of spoiled food. The imaging detection device can be realized by using a terahertz spectrometer, which can emit electromagnetic waves to scan the internal molecular structure of the food in the refrigerator, use terahertz imaging technology to perform imaging, and send the measurement results to the analysis and control unit. Generally, the cold room of a refrigerator includes several layers of
若所述的食品新鲜程度检测装置还包括与分析控制单元连接的报警装置，为了冰箱产品的美观，所述的报警装置优选设置在冰箱控制面板中，其中，报警装置可以是声音报警也可以是光电报警。由于前面提到利用太赫兹成像技术对腐败食品进行了成像，优选将所成的像同时在控制面板中显示，可以帮助用户快速定位腐败食品的类型。通过设置报警装置，方便当最终确定腐败食品时，可以及时进行报警提示，有效的防止了污染其他食品。If the food freshness detection device also includes an alarm device connected to the analysis control unit, for the sake of the appearance of the refrigerator product, the alarm device is preferably arranged in the refrigerator control panel, wherein the alarm device can be a sound alarm or a Photoelectric alarm. As mentioned above, terahertz imaging technology is used to image spoiled food, it is preferable to display the image on the control panel at the same time, which can help users quickly locate the type of spoiled food. By setting the alarm device, it is convenient to give an alarm prompt in time when the spoiled food is finally determined, effectively preventing contamination of other foods.
当然，上述说明并非是对本发明的限制，本发明也并不仅限于上述举例，本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换，也应属于本发明的保护范围。Of course, the above descriptions are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall also belong to protection scope of the present invention.
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| CN108872486A (en)* | 2018-07-03 | 2018-11-23 | 佛山市影腾科技有限公司 | A kind of refrigerator with array gas sensor |
| CN109541156A (en)* | 2018-11-10 | 2019-03-29 | 江苏华升面粉有限公司 | A kind of old wheat detection device of flour mill |
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