CN111596014A - A device and method for real-time dynamic evaluation of food sensory and chewing behavior analysis - Google Patents

A device and method for real-time dynamic evaluation of food sensory and chewing behavior analysis Download PDF

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CN111596014A
CN111596014A CN202010386599.2A CN202010386599A CN111596014A CN 111596014 A CN111596014 A CN 111596014A CN 202010386599 A CN202010386599 A CN 202010386599A CN 111596014 A CN111596014 A CN 111596014A
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陈建设
希尔伯特·范德格拉斯
贾竞珂
王鑫淼
陈碧
章一帆
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Zhejiang Gongshang University
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Abstract

本发明公开了一种食品感官实时动态评价及咀嚼行为分析装置及其方法,属于食品感官分析技术领域。该装置中,滑动电位器与直流稳压电源构成分压电路,电压检测模块用于实时检测滑动电位器的动触点和一个固定触点之间的电压值;视觉传感器用于拍摄品评人员的咀嚼行为;电压检测模块和视觉传感器分别与下位机电相连,构成数据反馈和控制系统;下位机与上位机通信连接。本发明装置能够实时获取动态感官分析学数据,这些感官数据可以直接和风味物质的定量分析数据在统计学上相关,除此之外,该装置还可以将咀嚼行为与感官评价数据结合,进行二元及多元分析。该装置具有可操作性稿、稳定性好、成本低的优点。

Figure 202010386599

The invention discloses a food sensory real-time dynamic evaluation and chewing behavior analysis device and a method thereof, belonging to the technical field of food sensory analysis. In this device, the sliding potentiometer and the DC regulated power supply form a voltage divider circuit, and the voltage detection module is used to detect the voltage value between the movable contact of the sliding potentiometer and a fixed contact in real time; The chewing behavior; the voltage detection module and the visual sensor are respectively connected with the lower-position electromechanical to form a data feedback and control system; the lower-position computer communicates with the upper-position computer. The device of the present invention can acquire dynamic sensory analysis data in real time, and these sensory data can be directly related to the quantitative analysis data of flavor substances in statistics. In addition, the device can also combine chewing behavior with sensory evaluation data to conduct two Meta and Multivariate Analysis. The device has the advantages of operability, good stability and low cost.

Figure 202010386599

Description

一种食品感官实时动态评价及咀嚼行为分析装置及其方法A device and method for real-time dynamic evaluation of food sensory and chewing behavior analysis

技术领域technical field

本发明属于食品感官分析技术领域,具体涉及一种食品感官实时动态评价及咀嚼行为分析装置及其方法。The invention belongs to the technical field of food sensory analysis, and in particular relates to a real-time dynamic evaluation of food sensory and chewing behavior analysis device and method thereof.

背景技术Background technique

随着社会的发展,人民生活水平的提高,人们对于食物的要求层次不断提高,已经由最初的饱腹、获得机体日常所需的能量,逐渐向延年益寿、从饮食中获得愉悦感、满足心理需求的方面发展,食品的感官功能逐渐转变为人们选择食品的一个主导因素,食品感官分析学科逐渐成为研究热点。With the development of society and the improvement of people's living standards, people's requirements for food have been continuously improved. From the initial satiety and obtaining the energy required by the body for daily life, it has gradually increased to prolonging life, obtaining pleasure from eating, and satisfying psychological needs. The sensory function of food has gradually become a leading factor for people to choose food, and the subject of food sensory analysis has gradually become a research hotspot.

食品感官分析是在食品理化分析的基础上,集心理学、生理学、统计学的知识发展起来的一门学科,是通过评价员的视觉、嗅觉、味觉、听觉和触觉而引起反应的一种科学方法。食品感官分析是食品科学、技术、工程研究和食品工业生产质量管理的必要手段,已逐渐发展为食品科学的一个独立分支。Food sensory analysis is a discipline developed on the basis of physical and chemical analysis of food, integrating the knowledge of psychology, physiology, and statistics. method. Food sensory analysis is a necessary means of food science, technology, engineering research and food industry production quality management, and has gradually developed into an independent branch of food science.

风味物质是感官分析学科中较为重要的一方面。在进食过程中,食品中风味物质的释放随时间的推移而不断改变,传统的感官品评方法是单点法和分类标示法,即要求品评员将感觉强度按时间平均来表达对样品的总体感官印象或仅以感觉的尖峰值表示,不能具体地反映风味感觉产生发展消失的具体实际情况,而时间-强度品评法却能反映这一全过程。然而传统的时间-强度法的数据采集频率低,且不能够做到完全连续,因此对风味化合物浓度实时变化的感官分析是研究风味在口腔释放的一个重要方面。Flavor substances are an important aspect of sensory analysis. In the process of eating, the release of flavor substances in food changes continuously with time. The traditional sensory evaluation methods are single-point method and classification method, that is, the taster is required to average the sensory intensity over time to express the overall sensory perception of the sample. Impression, or only expressed by the peak value of sensation, cannot reflect the actual situation of the development and disappearance of flavor sensation, but the time-intensity evaluation method can reflect the whole process. However, the data collection frequency of the traditional time-intensity method is low and cannot be completely continuous. Therefore, the sensory analysis of real-time changes in the concentration of flavor compounds is an important aspect of the study of flavor release in the oral cavity.

在风味物质的定量分析领域中,目前国内外主要从进食过程中口腔和鼻腔两个层面对风味物质浓度进行实时定量分析,其中口腔中的风味物质浓度主要采用LC-MS技术进行分析,鼻腔中的挥发性芳香物质则采用APCI-MS技术对其进行定量分析。In the field of quantitative analysis of flavor substances, the concentration of flavor substances in the oral cavity and the nasal cavity during the eating process is mainly analyzed in real time quantitatively at home and abroad. The concentration of flavor substances in the oral cavity is mainly analyzed by LC-MS technology. The volatile aromatic compounds were quantitatively analyzed by APCI-MS technology.

在风味物质的感官分析领域中,目前国内外主要有时间强度法和TDS分析技术,两种感官评价方法都存在一定的局限性。因为这些方法都是在评价员品尝完样品后,再给出相应的感官体验。由于其感官体验结果是事后给出的,因此在实际操作中,其很难得到对风味化合物浓度实时变化的感官数据。而且不同个体之间,其口腔生理和咀嚼行为之间存在显著差异,这样会导致咀嚼不同样品时的唾液分泌量差异量显著。将咀嚼行为与风味释放及其他因素进行联合分析,会更加全面的了解到人类的口腔加工机制。In the field of sensory analysis of flavor substances, there are mainly time intensity method and TDS analysis technology at home and abroad. Both sensory evaluation methods have certain limitations. Because these methods give the corresponding sensory experience after the evaluator has tasted the sample. Since its sensory experience results are given after the fact, it is difficult to obtain sensory data of real-time changes in the concentration of flavor compounds in practice. Moreover, there are significant differences in oral physiology and chewing behavior between different individuals, which can lead to significant differences in the amount of saliva secretion when chewing different samples. Joint analysis of chewing behavior with flavor release and other factors will provide a more comprehensive understanding of the human oral processing mechanism.

因此,亟待于设计一种能够获取品评人员对风味化合物浓度实时变化的感官数据以及咀嚼行为分析的装置。Therefore, there is an urgent need to design a device that can acquire sensory data of real-time changes in the concentration of flavor compounds and analyze chewing behavior by tasters.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于解决现有技术中存在的上述问题,并提供一种食品感官实时动态评价及咀嚼行为分析装置。The purpose of the present invention is to solve the above problems existing in the prior art, and to provide a real-time dynamic evaluation of food sensory and chewing behavior analysis device.

本发明所采用的具体技术方案如下:The concrete technical scheme adopted in the present invention is as follows:

一种食品感官实时动态评价及咀嚼行为分析装置,其包括直流稳压电源、滑动电位器、电压检测模块、视觉传感器、下位机和上位机;A device for real-time dynamic evaluation and chewing behavior analysis of food sensory, comprising a DC regulated power supply, a sliding potentiometer, a voltage detection module, a visual sensor, a lower computer and an upper computer;

所述滑动电位器的两个固定触点串联于直流稳压电源的两端,所述滑动电位器的动触点由滑动杆驱动在两个固定触点之间的阻体上滑动;所述滑动杆用于供品评人员在咀嚼食品过程中移动;The two fixed contacts of the sliding potentiometer are connected in series with both ends of the DC regulated power supply, and the movable contact of the sliding potentiometer is driven by a sliding rod to slide on the resistance body between the two fixed contacts; the Sliding rods are used for the movement of the reviewers during the chewing process of the food;

所述电压检测模块用于实时检测滑动电位器的动触点和一个固定触点之间的电压值;The voltage detection module is used for real-time detection of the voltage value between the movable contact and a fixed contact of the sliding potentiometer;

所述视觉传感器用于拍摄品评人员的咀嚼行为;The visual sensor is used to photograph the chewing behavior of the reviewers;

所述电压检测模块和视觉传感器分别与下位机电相连,构成数据反馈和控制系统;The voltage detection module and the visual sensor are respectively connected with the lower position electromechanical to form a data feedback and control system;

所述下位机与上位机通信连接,所述下位机通过有线或无线方式向上位机传输电压检测模块检测到的电压值时序数据,以及视觉传感器获取到的品评人员的咀嚼行为视频数据。The lower computer is connected in communication with the upper computer, and the lower computer transmits to the upper computer the time series data of the voltage value detected by the voltage detection module and the video data of the chewing behavior of the taster obtained by the visual sensor.

作为优选,所述直流稳压电源由220V交流电源供电,且直流稳压电源的输出电压可调。Preferably, the DC regulated power supply is powered by a 220V AC power supply, and the output voltage of the DC regulated power supply is adjustable.

作为优选,所述的下位机上设有启动控制按键,用于向下位机发送启动指令或停机指令;下位机在启动状态下,通过电压检测模块和视觉传感器获取实时数据,并将其发送至上位机,下位机在停机状态下,停止运行。Preferably, the lower computer is provided with a start control button, which is used to send a start command or a stop command to the lower computer; when the lower computer is in the startup state, it obtains real-time data through the voltage detection module and the visual sensor, and sends it to the upper computer. The lower computer stops running when it is in the stop state.

作为优选,所述下位机上电连接有显示模块,用于实时显示装置的运行状态以及在运行过程中显示所述电压检测模块检测到的电压值。Preferably, a display module is electrically connected to the lower computer for displaying the running state of the device in real time and displaying the voltage value detected by the voltage detection module during the running process.

作为优选,所述的下位机为Ardunio UNO R3开发板。Preferably, the lower computer is an Ardunio UNO R3 development board.

作为优选,所述的显示模块为LCD1602A蓝色液晶屏模块。Preferably, the display module is an LCD1602A blue liquid crystal screen module.

作为优选,所述的上位机通过蓝牙或WiFi与下位机构成无线信号传输。Preferably, the upper computer forms wireless signal transmission with the lower computer through Bluetooth or WiFi.

作为优选,所述的上位机中安装有Ardunio IDE。Preferably, Ardunio IDE is installed in the host computer.

作为优选,所述滑动电位器的滑块位移范围为0-100mm,且正常运行温度范围为-40℃至100℃。Preferably, the slider displacement range of the sliding potentiometer is 0-100mm, and the normal operating temperature range is -40°C to 100°C.

作为优选,所述直流稳压电源的输出电压为10V,所述电压检测模块的最小检测电压值为0.02445V,最大检测电压值为25V。Preferably, the output voltage of the DC stabilized power supply is 10V, the minimum detection voltage of the voltage detection module is 0.02445V, and the maximum detection voltage is 25V.

本发明的另一目的在于提供一种利用上述任一方案所述装置的食品感官实时动态评价及咀嚼行为分析数据获取方法,其步骤如下:Another object of the present invention is to provide a real-time dynamic evaluation of food sensory and chewing behavior analysis data acquisition method utilizing the device described in any of the above schemes, the steps of which are as follows:

S1:启动所述的食品感官实时动态评价及咀嚼行为分析装置,调节直流稳压电源,使滑动电位器两端加载有设定的电压值;电压检测模块和视觉传感器处于工作准备状态,上位机与下位机之间建立数据传输的通信连接;S1: Activate the real-time dynamic evaluation of food sensory and chewing behavior analysis device, adjust the DC regulated power supply, so that the two ends of the sliding potentiometer are loaded with the set voltage value; the voltage detection module and the visual sensor are in a working ready state, and the upper computer Establish a communication connection for data transmission with the lower computer;

S2:待感官品评人员获取到样品并开始进行品评后,向下位机发送开始指令,电压检测模块和视觉传感器进入工作状态并开始获取实时数据;S2: After the sensory evaluation personnel obtain the sample and start the evaluation, send a start command to the lower computer, the voltage detection module and the visual sensor enter the working state and start to obtain real-time data;

所述电压检测模块实时检测滑动电位器的动触点和一个固定触点之间的电压值,所述电压值由感官品评人员根据所感受到食品味道的强烈程度调节滑动杆进而改变;所述视觉传感器不断拍摄品评人员的咀嚼行为并形成带有视频;The voltage detection module detects the voltage value between the movable contact and a fixed contact of the sliding potentiometer in real time. The sensor continuously records the chewing behavior of the judges and forms a video;

S3:所述下位机中得到的电压检测模块和视觉传感器的数据,不断发送至上位机中,上位机将接收到的数据与数据获取时间关联后,进行保存,以供后续调用。S3: The data of the voltage detection module and the visual sensor obtained in the lower computer are continuously sent to the upper computer, and the upper computer associates the received data with the data acquisition time and saves it for subsequent calling.

本发明相对于现有技术而言,具有以下有益效果:Compared with the prior art, the present invention has the following beneficial effects:

本发明提供了一种高频率数据采集装置成功获取了感官分析学数据,这些感官数据可以直接和风味物质的定量分析数据在统计学上相关,除此之外,该装置还可以将咀嚼行为与感官评价数据结合,进行二元及多元分析。该装置显示出优异的可操作性、稳定性、便携性,为用户提供了一种更经济的选择方案。此感官分析装置最有优势的是测量值范围与数据采集频率可以根据用户的使用目的进行调整,且操作较为简便。The present invention provides a high-frequency data acquisition device to successfully acquire sensory analysis data. These sensory data can be directly related to the quantitative analysis data of flavor substances in statistics. In addition, the device can also correlate chewing behavior with Sensory evaluation data were combined for binary and multivariate analysis. The device shows excellent operability, stability and portability, and provides users with a more economical option. The most advantage of this sensory analysis device is that the measurement value range and data collection frequency can be adjusted according to the user's purpose of use, and the operation is relatively simple.

附图说明Description of drawings

图1为食品感官实时动态评价及咀嚼行为分析装置的结构原理图;Fig. 1 is the structural principle diagram of the real-time dynamic evaluation of food sensory and chewing behavior analysis device;

图2为食品感官实时动态评价及咀嚼行为分析装置中的信号传输示意图。FIG. 2 is a schematic diagram of signal transmission in the device for real-time dynamic evaluation of food sensory and chewing behavior analysis.

具体实施方式Detailed ways

下面结合附图和具体实施方式对本发明做进一步阐述和说明。本发明中各个实施方式的技术特征在没有相互冲突的前提下,均可进行相应组合。The present invention will be further elaborated and described below with reference to the accompanying drawings and specific embodiments. The technical features of the various embodiments of the present invention can be combined correspondingly on the premise that there is no conflict with each other.

近年来,移动设备由于其强大的计算和储存能力,作为数据处理和显示的平台,能够结合不同的便携式传感检测装置,实现对理化参数的实时监测与传输。在本发明的一个较佳实施例中,提供了一种食品感官实时动态评价及咀嚼行为分析装置,其主要组成包括直流稳压电源、滑动电位器、电压检测模块、视觉传感器、下位机和上位机。该装置用于实现感官评价数据及不同个体咀嚼行为数据的实时获取分析。In recent years, due to its powerful computing and storage capabilities, mobile devices, as platforms for data processing and display, can be combined with different portable sensing and detection devices to realize real-time monitoring and transmission of physical and chemical parameters. In a preferred embodiment of the present invention, a real-time dynamic evaluation of food sensory and chewing behavior analysis device is provided, the main components of which include a DC regulated power supply, a sliding potentiometer, a voltage detection module, a visual sensor, a lower computer and an upper computer. machine. The device is used to realize real-time acquisition and analysis of sensory evaluation data and chewing behavior data of different individuals.

其中,实时的感官评价数据是基于滑动电位器产生的。滑动电位器是具有三个引出端、阻值可变的电阻元件,通常由电阻体和可移动的电刷组成,电阻体的两端分别具有两个固定触点,两个固定触点之间的阻值是固定的。而电刷与电阻体的接触位置形成了一个动触点,当电刷沿电阻体移动时,在动触点的输出端即获得与位移量成一定关系的电阻值。利用滑动电位器可以构成电阻分压电路,通过电压检测模块即可获得一个与位移量相关的电压值,该电压值即可用于反映感官品评人员所感受到食品味道的强烈程度。Among them, the real-time sensory evaluation data is generated based on the sliding potentiometer. The sliding potentiometer is a resistance element with three terminals and variable resistance value. It is usually composed of a resistor body and a movable brush. Both ends of the resistor body have two fixed contacts, and between the two fixed contacts The resistance value is fixed. The contact position between the brush and the resistor body forms a movable contact. When the brush moves along the resistor body, the output end of the movable contact obtains a resistance value that has a certain relationship with the displacement. A resistance voltage divider circuit can be formed by using a sliding potentiometer, and a voltage value related to the displacement can be obtained through the voltage detection module, and the voltage value can be used to reflect the intensity of the food taste felt by the sensory assessors.

参见图1所示,本发明中的滑动电位器的两个固定触点串联于直流稳压电源的两端,而滑动电位器的动触点由滑动杆驱动在两个固定触点之间的阻体上滑动。而电压检测模块用于实时检测滑动电位器的动触点和一个固定触点之间的电压值。在本实施例中,直流稳压电源由220V交流电源供电,且直流稳压电源为可调节式电源,其输出电压可根据需求通过旋钮进行调节。Referring to Figure 1, the two fixed contacts of the sliding potentiometer in the present invention are connected in series with both ends of the DC regulated power supply, and the moving contact of the sliding potentiometer is driven by the sliding rod between the two fixed contacts. Sliding on the block. The voltage detection module is used to detect the voltage value between the movable contact and a fixed contact of the sliding potentiometer in real time. In this embodiment, the DC regulated power supply is powered by a 220V AC power supply, and the DC regulated power supply is an adjustable power supply, and its output voltage can be adjusted through a knob according to requirements.

滑动电位器上滑动杆的作用是供品评人员在咀嚼食品过程中移动,可以预先对品评人员进行培训,使其能够正确操作该装置。当其在咀嚼食品过程中感受到食品味道变强烈时,可以将滑动杆往导致电压值变大的方向移动,当感受到食品味道变弱时,可以将滑动杆往导致电压值变小的方向移动。由此,通过记录该电压值的大小,即可反映咀嚼食品过程中感受到食品味道的变化趋势。The function of the sliding rod on the sliding potentiometer is for the evaluation personnel to move in the process of chewing the food, and the evaluation personnel can be trained in advance so that they can operate the device correctly. When it feels that the food taste becomes stronger during the process of chewing the food, it can move the sliding rod in the direction that causes the voltage value to increase. move. Thus, by recording the magnitude of the voltage value, the change trend of the taste of the food during chewing the food can be reflected.

同时,品评人员的咀嚼行为可以通过视觉传感器进行实时记录,后续根据记录有咀嚼行为的视频影像,配合电压值大小的变化数据,可以较好地进行风味物质浓度的实时定量分析。At the same time, the chewing behavior of the tasters can be recorded in real time through the visual sensor, and then according to the video images recorded with the chewing behavior, combined with the change data of the voltage value, the real-time quantitative analysis of the concentration of flavor substances can be better carried out.

上述电压检测模块和视觉传感器所采集的数据,均需要进行保存。因此,本发明中,将电压检测模块和视觉传感器分别与下位机电相连,构成数据反馈和控制系统。下位机可以直接控制电压检测模块和视觉传感器的运行,而电压检测模块和视觉传感器检测到的数据也可以分别由下位机进行处理和暂时存储。下位机中应当含有必要的信号处理电路,例如供电模块、存储模块、模数转换器、数模转换器等。为了便于查看,下位机上可以电连接有显示模块,其作用是实时显示装置的当前运行状态,或者还可以在运行过程中显示电压检测模块检测到的电压值。The data collected by the voltage detection module and the vision sensor all need to be saved. Therefore, in the present invention, the voltage detection module and the visual sensor are respectively connected to the lower-level electromechanical devices to form a data feedback and control system. The lower computer can directly control the operation of the voltage detection module and the vision sensor, and the data detected by the voltage detection module and the vision sensor can also be processed and temporarily stored by the lower computer respectively. The lower computer should contain necessary signal processing circuits, such as power supply modules, storage modules, analog-to-digital converters, digital-to-analog converters, etc. In order to facilitate viewing, a display module can be electrically connected to the lower computer, and its function is to display the current operating state of the device in real time, or it can also display the voltage value detected by the voltage detection module during operation.

同时,为了便于实际操作,下位机上可以设有一个启动控制按键,用于向下位机发送启动指令或停机指令。下位机在启动状态下,通过电压检测模块和视觉传感器获取实时数据,并将其发送至上位机。下位机在停机状态下,电压检测模块和视觉传感器等均停止运行,同时也可以对滑动电位器进行断电。At the same time, in order to facilitate the actual operation, a start control button may be provided on the lower computer, which is used to send a start command or a stop command to the lower computer. In the startup state, the lower computer obtains real-time data through the voltage detection module and the vision sensor, and sends it to the upper computer. When the lower computer is in the shutdown state, the voltage detection module and the visual sensor all stop running, and the sliding potentiometer can also be powered off.

下位机与上位机通信连接,两者之间的连接方式可以是有线连接,也可以是无线连接。考虑到后续分析的需要,电压检测模块检测到的电压值应当带有采集时间标签,视觉传感器获取到的品评人员的咀嚼行为视频数据也应当带有时间戳,因此下位机可以对数据添加时间信息,形成相应的时序数据。当然,假如电压检测模块和视觉传感器的信号中自带有时间信息,则可以直接利用其自带的时间信息,无需额外添加。下位机获取到的数据后,可以向上位机传输电压检测模块检测到的电压值时序数据,以及视觉传感器获取到的品评人员的咀嚼行为视频数据,这些数据均直接保存在上位机中,以供后续调用。The lower computer is connected to the upper computer for communication, and the connection between the two can be wired connection or wireless connection. Taking into account the needs of subsequent analysis, the voltage value detected by the voltage detection module should have a collection time label, and the video data of the chewing behavior of the taster obtained by the visual sensor should also be time stamped, so the lower computer can add time information to the data. , to form the corresponding time series data. Of course, if the signals of the voltage detection module and the vision sensor have their own time information, they can directly use their own time information without additional addition. After the data obtained by the lower computer, the time series data of the voltage value detected by the voltage detection module and the video data of the chewing behavior of the tasters obtained by the visual sensor can be transmitted to the upper computer. These data are directly stored in the upper computer for use. subsequent calls.

基于该装置的食品感官实时动态评价及咀嚼行为分析数据获取方法,其步骤如下:Based on the device for real-time dynamic evaluation of food sensory and data acquisition method for chewing behavior analysis, the steps are as follows:

S1:启动所述的食品感官实时动态评价及咀嚼行为分析装置,调节直流稳压电源,使滑动电位器两端加载有设定的电压值;电压检测模块和视觉传感器处于工作准备状态,上位机与下位机之间建立数据传输的通信连接;S1: Activate the real-time dynamic evaluation of food sensory and chewing behavior analysis device, adjust the DC regulated power supply, so that the two ends of the sliding potentiometer are loaded with the set voltage value; the voltage detection module and the visual sensor are in a working ready state, and the upper computer Establish a communication connection for data transmission with the lower computer;

S2:待感官品评人员获取到样品并开始进行品评后,向下位机发送开始指令,电压检测模块和视觉传感器进入工作状态并开始获取实时数据;S2: After the sensory evaluation personnel obtain the sample and start the evaluation, send a start command to the lower computer, the voltage detection module and the visual sensor enter the working state and start to obtain real-time data;

其中电压检测模块实时检测滑动电位器的动触点和一个固定触点之间的电压值,电压值由感官品评人员根据所感受到食品味道的强烈程度调节滑动杆进而改变;视觉传感器不断拍摄品评人员的咀嚼行为并形成带有视频;The voltage detection module detects the voltage value between the movable contact and a fixed contact of the sliding potentiometer in real time, and the voltage value is changed by the sensory judges by adjusting the sliding rod according to the intensity of the food taste; the visual sensor constantly shoots the judges chewing behavior and formed with video;

S3:下位机中得到的电压检测模块和视觉传感器的数据,不断发送至上位机中,上位机将接收到的数据与数据获取时间关联后,进行保存,以供后续调用。S3: The data of the voltage detection module and the visual sensor obtained in the lower computer are continuously sent to the upper computer, and the upper computer associates the received data with the data acquisition time and saves it for subsequent calls.

上述装置中,各部件的具体型号和参数可以根据实际需要进行调整。在本实施例中,下位机采用Ardunio UNO R3开发板,而上位机则采用一台装有Ardunio IDE的移动PC,其与Ardunio UNO开发板通过蓝牙/WIFI信号实现数据传输与收集。Arduino是能够用来感应和控制现实物理世界的一套工具,它由一个基于单片机并且开放源码的硬件平台,和一套为Arduino板编写程序的开发环境组成。Ardunio UNO开发板固定于直流稳压电源的顶座上,对检测到的电压信号进行编码和采集。电压检测模块中具有电压传感器,电压传感器的DC输入接口与滑动电位器相联,输出接口与Ardunio UNO开发板相连,此模块基于电阻分压原理所设计,能使端子接口输入的电压缩小5倍,模拟输入电压最大为5V。所以电压检测模块的输入电压不能够大于25V,内部所用AVR芯片为10位AD,所以此模块的模拟分辨率为0.00489V(5V/1024),检测输入最小电压为0.02445V。视觉传感器可以直接采用普通摄像头,用以实现咀嚼行为图像与感官评价数据的同时获取。启动控制按键可以采用高电平按键模块,即能产生高电平的微动开关按键模块,其工作电压为3.5V-5V,按下低电平,释放高电平。In the above device, the specific models and parameters of each component can be adjusted according to actual needs. In this embodiment, the lower computer adopts the Ardunio UNO R3 development board, and the upper computer adopts a mobile PC equipped with Ardunio IDE, which realizes data transmission and collection with the Ardunio UNO development board through Bluetooth/WIFI signals. Arduino is a set of tools that can be used to sense and control the real physical world. It consists of a microcontroller-based open source hardware platform and a development environment for programming Arduino boards. The Ardunio UNO development board is fixed on the top seat of the DC regulated power supply, and encodes and collects the detected voltage signal. There is a voltage sensor in the voltage detection module. The DC input interface of the voltage sensor is connected with the sliding potentiometer, and the output interface is connected with the Ardunio UNO development board. This module is designed based on the principle of resistance division, which can reduce the input voltage of the terminal interface by 5 times. , the maximum analog input voltage is 5V. Therefore, the input voltage of the voltage detection module cannot be greater than 25V, and the AVR chip used inside is 10-bit AD, so the analog resolution of this module is 0.00489V (5V/1024), and the minimum input voltage for detection is 0.02445V. The visual sensor can directly use the ordinary camera to realize the simultaneous acquisition of the chewing behavior image and the sensory evaluation data. The startup control button can use a high-level button module, that is, a micro-switch button module that can generate a high-level, and its operating voltage is 3.5V-5V, press the low-level, and release the high-level.

另外,数据的显示模块由LCD1602A蓝色液晶屏模块组成,与Ardunio UNO开发板相连,可以实时显示电位器两端的电压值供感官品评人员作为参考,在停机状态下显示waiting。In addition, the data display module is composed of LCD1602A blue liquid crystal screen module, which is connected to the Ardunio UNO development board. It can display the voltage value at both ends of the potentiometer in real time for sensory evaluation personnel as a reference, and display waiting in the shutdown state.

该装置的具体使用过程如下:The specific use process of the device is as follows:

1.将直流稳压电源与220V交流电源连接,旋转旋钮,调节到所需要的电压值。1. Connect the DC stabilized power supply to the 220V AC power supply, and turn the knob to adjust to the required voltage value.

2.将Ardunio UNO R3开发板连接电源,并按下重置按钮,在装有Ardunio IDE的移动PC上运行Ardunio应用程序,代码正常运行之后打开数据采集窗口。2. Connect the Ardunio UNO R3 development board to the power supply, and press the reset button to run the Ardunio application on the mobile PC with the Ardunio IDE installed. After the code runs normally, the data acquisition window will open.

3.实验开始由实验员为感官品评人员提供样品,此时LCD1602A蓝色液晶屏模块上的显示内容为“waiting”;3. At the beginning of the experiment, the experimenter provides samples for the sensory evaluation personnel. At this time, the display content on the LCD1602A blue liquid crystal screen module is "waiting";

4.实验员发出开始指令并同时启动控制按键,此时LCD1602A蓝色液晶屏模块显示的数值即为滑动电位器的动触点和一个固定触点之间的电压值;4. The experimenter issues a start command and simultaneously activates the control buttons. At this time, the value displayed by the LCD1602A blue liquid crystal screen module is the voltage value between the moving contact and a fixed contact of the sliding potentiometer;

5.感官品评过程中,品评人员根据所感受到味道的强烈程度移动100mm微型滑块电位器,其电位可以实时被记录下来。由于滑块电位器的调节过程是一个连续的、动态的过程,电压检测模块以一定的频率不断检测其电压值的变化,由此形成了电压时序数据。在本实施例中的数据采集频率为一秒钟获取33个数据值,当然数据采集频率可以根据需要通过更改控制代码进行调整。5. During the sensory evaluation process, the evaluation personnel move the 100mm miniature slider potentiometer according to the intensity of the taste, and the potential can be recorded in real time. Since the adjustment process of the slider potentiometer is a continuous and dynamic process, the voltage detection module continuously detects the change of its voltage value at a certain frequency, thus forming the voltage time series data. In this embodiment, the data collection frequency is 33 data values obtained in one second. Of course, the data collection frequency can be adjusted by changing the control code as required.

6.实验员发出停止指令的同时,再次按下控制按键,此时LCD1602A蓝色液晶屏模块上的显示内容为“waiting”,停止装置的检测。6. The experimenter presses the control button again while issuing the stop command. At this time, the display content on the LCD1602A blue liquid crystal screen module is "waiting", and the detection of the device is stopped.

7.在PC上获取数据采集窗口的数据,包括序号、采样时间、电压值,同时也可以获取其视频数据。7. Obtain the data of the data acquisition window on the PC, including serial number, sampling time, voltage value, and also obtain its video data.

8.重复上述的步骤,可以得到不同个体、不同样品、不同时间周期的感官评价数据。8. Repeat the above steps to obtain sensory evaluation data of different individuals, different samples, and different time periods.

由此,通过上述装置和方法,基于滑块电位器,可以方便的将感官风味转换为滑动电位器两端的电压变化,其电压值可作为感官评价打分值。Therefore, through the above device and method, based on the slider potentiometer, the sensory flavor can be conveniently converted into the voltage change at both ends of the slider potentiometer, and the voltage value can be used as the sensory evaluation score value.

以上所述的实施例只是本发明的一种较佳的方案,然其并非用以限制本发明。有关技术领域的普通技术人员,在不脱离本发明的精神和范围的情况下,还可以做出各种变化和变型。因此凡采取等同替换或等效变换的方式所获得的技术方案,均落在本发明的保护范围内。The above-mentioned embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. Various changes and modifications can also be made by those of ordinary skill in the relevant technical field without departing from the spirit and scope of the present invention. Therefore, all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. A real-time dynamic evaluation and chewing behavior analysis device for food sense organs is characterized by comprising a direct-current stabilized power supply, a sliding potentiometer, a voltage detection module, a visual sensor, a lower computer and an upper computer;
two fixed contacts of the sliding potentiometer are connected in series at two ends of a direct-current stabilized power supply, and a moving contact of the sliding potentiometer is driven by a sliding rod to slide on a resistor between the two fixed contacts; the sliding rod is used for the movement of the food appraiser in the process of chewing the food;
the voltage detection module is used for detecting the voltage value between a movable contact and a fixed contact of the sliding potentiometer in real time;
the visual sensor is used for shooting the chewing behaviors of the appraisers;
the voltage detection module and the vision sensor are respectively and electrically connected with the lower computer to form a data feedback and control system;
the lower computer is in communication connection with the upper computer, and transmits voltage value time sequence data detected by the voltage detection module and chewing behavior video data of the appraiser acquired by the visual sensor to the upper computer in a wired or wireless mode.
2. The food sensory real-time dynamic evaluation and chewing behavior analysis device according to claim 1, wherein the regulated dc power supply is powered by a 220V ac power supply, and the output voltage of the regulated dc power supply is adjustable.
3. The food sensory real-time dynamic evaluation and chewing behavior analysis device according to claim 1, wherein a start control button is arranged on the lower computer and used for sending a start instruction or a stop instruction to the lower computer; the lower computer obtains real-time data through the voltage detection module and the visual sensor in a starting state and sends the real-time data to the upper computer, and the lower computer stops running in a stopping state.
4. The apparatus for real-time dynamic food sensory evaluation and analysis of chewing behavior according to claim 1, wherein the lower computer is electrically connected to a display module for displaying the operation status of the apparatus in real time and displaying the voltage value detected by the voltage detection module during operation.
5. The apparatus for sensory evaluation of food and analysis of mastication behavior in real time according to claim 1, wherein the lower computer is an ardonio UNO R3 development board.
6. The device for real-time dynamic food sensory evaluation and analysis of chewing behavior according to claim 1, wherein the display module is a LCD1602A blue liquid crystal screen module.
7. The food sensory real-time dynamic evaluation and chewing behavior analysis device according to claim 1, wherein the upper computer wirelessly transmits signals with the lower computer through bluetooth or WiFi; and ArdunioIDE is installed in the upper computer.
8. The apparatus for sensory real-time dynamic evaluation of food and analysis of chewing behavior according to claim 1, wherein the slide potentiometer has a slide displacement range of 0-100mm and a normal operating temperature range of-40 ℃ to 100 ℃.
9. The apparatus for real-time dynamic sensory evaluation and analysis of chewing behavior of food according to claim 1, wherein the output voltage of the dc regulated power supply is 10V, the minimum detection voltage value of the voltage detection module is 0.02445V, and the maximum detection voltage value is 25V.
10. A method for real-time dynamic food sensory evaluation and mastication behavior analysis data acquisition using the apparatus according to any one of claims 1 to 9, comprising the steps of:
s1: starting the food sensory real-time dynamic evaluation and chewing behavior analysis device, and adjusting a direct-current stabilized voltage supply to enable the two ends of the sliding potentiometer to be loaded with a set voltage value; the voltage detection module and the vision sensor are in a work preparation state, and a data transmission communication connection is established between the upper computer and the lower computer;
s2: after a sensory evaluation person obtains a sample and starts evaluating, sending a starting instruction to a lower computer, and enabling a voltage detection module and a visual sensor to enter a working state and start to obtain real-time data;
the voltage detection module detects the voltage value between a movable contact and a fixed contact of the sliding potentiometer in real time, and the voltage value is changed by adjusting the sliding rod according to the strong degree of the sensed food taste by sensory evaluation personnel; the visual sensor continuously shoots the chewing behaviors of the appraisers and forms a video;
s3: and the data of the voltage detection module and the vision sensor obtained in the lower computer are continuously sent to the upper computer, and the upper computer correlates the received data with the data acquisition time and then stores the data for subsequent calling.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115629167A (en) * 2022-11-08 2023-01-20 黑龙江飞鹤乳业有限公司 Semi-solid food evaluation method and application

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