CN105572420A - Feeding speed acquiring method and device - Google Patents
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Abstract
本发明实施例公开了一种获取进食速度的方法及装置，该方法包括：获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上；对所述加速度信息进行分析，获取进食动作周期；获取所述进食动作周期内的进食速度。本发明实施例所述的技术方案基于加速度信号识别进食速度，实现简便且可用性较高；另外，本发明一实施例将进食速度识别的相关数据传输至移动终端，供移动终端进行统计分析，从而能够进一步提高分析准确度。
The embodiment of the present invention discloses a method and device for obtaining eating speed. The method includes: obtaining acceleration information of an acceleration sensor, the acceleration sensor being set on the eating tableware; analyzing the acceleration information to obtain the eating action cycle; Acquire the eating speed within the eating action period. The technical solution described in the embodiment of the present invention is based on the acceleration signal to identify the eating speed, which is easy to implement and has high usability; in addition, an embodiment of the present invention transmits the relevant data of eating speed identification to the mobile terminal for statistical analysis by the mobile terminal, thereby The analysis accuracy can be further improved.
Description
技术领域technical field
本发明涉及信息处理技术，尤其涉及一种获取进食速度的方法及装置。The invention relates to information processing technology, in particular to a method and device for acquiring eating speed.
背景技术Background technique
进食速度是饮食习惯的重要因素。过快的进食速度，不能让食物得到充分咀嚼，不利于口中食物和唾液淀粉酶的初步消化，从而会加重肠胃负担；过短的咀嚼时间则会使迷走神经处在过度兴奋之中，长此以往，容易因食欲亢进而肥胖。此外，吃饭过快会给精神带来较大负担。因此，利用智能餐具，识别并记录日常的进食速度，帮助用户养成合适的进食速度具有重要的意义。探索智能餐具的过程中，许多研究关注在餐具上集成多种的传感器，通过提供丰富的功能，从多维度监测用户的饮食习惯。Eating speed is an important factor in eating habits. Too fast eating speed will not allow the food to be fully chewed, which is not conducive to the initial digestion of food in the mouth and salivary amylase, which will increase the burden on the stomach and intestines; too short chewing time will make the vagus nerve overexcited, and if things go on like this, it is easy to Obesity due to hyperphagia. In addition, eating too fast will bring a greater burden to the spirit. Therefore, it is of great significance to use smart tableware to identify and record the daily eating speed and help users develop a suitable eating speed. In the process of exploring smart tableware, many studies focus on integrating a variety of sensors on the tableware to monitor the user's eating habits from multiple dimensions by providing rich functions.
例如，相关技术提出的健康智能餐具包括一种健康智能餐具包括勺、营养指标测量仪、电源，所述营养指标测量仪包括脂肪传感器、蛋白质传感器、碳水化合物传感器、压电传感器、唾液α淀粉酶生物传感器及信号处理系统。这套新型健康智能餐具，能够自动测量摄入食物所含的蛋白质、脂肪和碳水化合物的量。For example, the healthy smart tableware proposed in the related art includes a healthy smart tableware including a spoon, a nutritional index measuring instrument, and a power supply. The nutritional index measuring instrument includes a fat sensor, a protein sensor, a carbohydrate sensor, a piezoelectric sensor, Biosensor and signal processing system. This new set of healthy smart tableware can automatically measure the amount of protein, fat and carbohydrates in the food you eat.
再例如，相关技术提出一种用于测量和呈现进食速度的方法和装置，该装置由显示屏和电子秤组成，用于根据显示在屏幕上的预定的图示进食曲线来教导人们进食。For another example, the related art proposes a method and device for measuring and presenting eating speed, the device is composed of a display screen and an electronic scale, and is used to teach people to eat according to a predetermined graphic eating curve displayed on the screen.
再例如，相关技术提出一种减肥勺子，在勺子上安装电子表，通过倒计时键监控吃饭快的人的吃饭速度，有意识地培养人们细嚼慢咽的吃饭习惯，从而避免过大的进食量，达到减肥的效果，制作和使用简单。For another example, the relevant technology proposes a weight-loss spoon, an electronic watch is installed on the spoon, the eating speed of people who eat fast is monitored through the countdown button, and people's eating habits of eating slowly are consciously cultivated, thereby avoiding excessive food intake. The effect of weight loss is achieved, and the preparation and use are simple.
但是，上述进食速度监测方法存在以下问题：But there are following problems in the above-mentioned eating speed monitoring method:
1)现有的针对进食速度的技术使用的条件约束性较大，实现装置便携性低，并且，一般要求所有食物放置在同一个盘子内，在日常情景下可用性差；1) The existing technology for eating speed is highly restrictive, and the portability of the device is low, and generally requires all food to be placed on the same plate, which is poor in usability in daily situations;
2)缺乏长期的记录。进食习惯的检测和干预是一个动态、长期的过程，数据的统计与趋势分析非常重要，这些工作在现有的技术方案中没有体现。2) Lack of long-term records. The detection and intervention of eating habits is a dynamic and long-term process. Statistics and trend analysis of data are very important, and these tasks are not reflected in the existing technical solutions.
发明内容Contents of the invention
有鉴于此，为解决现有存在的技术问题，本发明实施例提供：In view of this, in order to solve the existing technical problems, the embodiments of the present invention provide:
一种获取进食速度的方法，包括：A method of obtaining eating speed comprising:
获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上；Obtain the acceleration information of the acceleration sensor, and the acceleration sensor is arranged on the tableware for eating;
对所述加速度信息进行分析，获取进食动作周期；Analyzing the acceleration information to obtain the eating action cycle;
获取所述进食动作周期内的进食速度。Acquire the eating speed within the eating action period.
一具体实施例中，所述进食动作周期包括：进食餐具放置状态、进食餐具拿起状态和进食状态。In a specific embodiment, the eating action cycle includes: a state of placing eating utensils, a state of picking up eating utensils, and an eating state.
一具体实施例中，所述加速度传感器的Y轴与所述进食餐具的柄方向一致，In a specific embodiment, the Y axis of the acceleration sensor is consistent with the direction of the handle of the eating tableware,
所述对所述加速度信息进行分析，获取进食动作周期，包括：The analysis of the acceleration information to obtain the eating action cycle includes:
根据计算所述加速度传感器的运动强度TFA，其中，xi 2是加速度传感器第i个轴的信号的平方，当TFA小于第一阈值时，确定所述进食餐具处于放置状态；according to Calculating the motion intensity TFA of the acceleration sensor, wherein x i 2 is the square of the signal of the i-th axis of the acceleration sensor, and when TFA is less than the first threshold, it is determined that the eating tableware is in a placed state;
当所述加速度传感器连续经历第一动作、第二动作、第三动作和第四动作时，确定所述进食餐具处于进食状态，其中，所述第一动作对应所述加速度传感器的Y轴重力加速度方向向下，所述第二动作对应所述加速度传感器的Y轴重力加速度上升，之后出现凹陷波形，所述第三动作对应所述加速度传感器的Y轴重力加速度再次上升，所述第四动作对应所述加速度传感器的Y轴重力加速度下降；When the acceleration sensor continuously experiences the first action, the second action, the third action and the fourth action, it is determined that the eating tableware is in the eating state, wherein the first action corresponds to the Y-axis gravity acceleration of the acceleration sensor The direction is downward, the second action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising, and then a concave waveform appears, the third action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising again, and the fourth action corresponds to The Y-axis gravitational acceleration of the acceleration sensor decreases;
将没有被识别为进食餐具放置状态和进食餐具进食状态的时间段确定为所述进食餐具的拿起状态。A time period that is not recognized as the eating tableware placement state and the eating tableware eating state is determined as the eating tableware picking state.
一具体实施例中，所述获取所述进食动作周期内的进食速度，包括：In a specific embodiment, the acquiring the eating speed within the eating action cycle includes:
根据计算进食速度，其中，Ti是当前最近的一次进食状态发生的时刻，Ti-1是前一次进食状态发生的时刻，μ是常系数。according to Calculate the eating speed, where T i is the moment when the latest eating state occurs, T i-1 is the moment when the previous eating state occurs, and μ is a constant coefficient.
一具体实施例中，所述获取所述进食动作周期内的进食速度之后，该方法还包括：In a specific embodiment, after acquiring the eating speed in the eating action cycle, the method further includes:
根据所述进食速度进行判断，当所述进食速度满足预设的提醒条件时，采用预设的提醒方式进行提醒。Judgment is made according to the eating speed, and when the eating speed satisfies a preset reminder condition, a preset reminder method is used to remind.
一具体实施例中，所述获取所述进食动作周期内的进食速度之后，该方法还包括：In a specific embodiment, after acquiring the eating speed in the eating action cycle, the method further includes:
对所述获取的进食速度进行分析和/或展示。Analyzing and/or displaying the acquired eating speed.
一具体实施例中，所述获取加速度传感器的加速度信息、和/或获取进食动作周期和/或获取所述进食动作周期内进食速度的步骤由设置于进食餐具上的进食速度获取装置执行，或者，由设置于用户终端设备上的进食速度获取装置执行。In a specific embodiment, the step of acquiring the acceleration information of the acceleration sensor, and/or acquiring the eating action cycle and/or acquiring the eating speed within the eating action cycle is performed by an eating speed acquisition device arranged on the eating tableware, or , executed by the eating speed acquisition device set on the user terminal equipment.
一种获取进食速度的装置，包括：第一获取模块、第二获取模块和第三获取模块；其中，A device for obtaining eating speed, comprising: a first obtaining module, a second obtaining module and a third obtaining module; wherein,
所述第一获取模块，用于获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上；The first acquiring module is configured to acquire acceleration information of an acceleration sensor, and the acceleration sensor is arranged on the eating tableware;
所述第二获取模块，用于对所述加速度信息进行分析，获取进食动作周期；The second acquisition module is used to analyze the acceleration information and acquire the eating action cycle;
所述第三获取模块，用于获取所述进食动作周期内的进食速度。The third acquisition module is configured to acquire the eating speed within the eating action cycle.
一具体实施例中，所述第二获取模块，具体用于根据计算所述加速度传感器的运动强度TFA，其中，xi 2是加速度传感器第i个轴的信号的平方，当TFA小于第一阈值时，确定所述进食餐具处于放置状态；以及当所述加速度传感器连续经历第一动作、第二动作、第三动作和第四动作时，确定所述进食餐具处于进食状态，其中，所述第一动作对应所述加速度传感器的Y轴重力加速度方向向下，所述第二动作对应所述加速度传感器的Y轴重力加速度上升，之后出现凹陷波形，所述第三动作对应所述加速度传感器的Y轴重力加速度再次上升，所述第四动作对应所述加速度传感器的Y轴重力加速度下降；以及将没有被识别为进食餐具放置状态和进食餐具进食状态的时间段确定为所述进食餐具的拿起状态。In a specific embodiment, the second acquisition module is specifically configured to Calculating the motion intensity TFA of the acceleration sensor, wherein x i 2 is the square of the signal of the i-th axis of the acceleration sensor, and when TFA is less than a first threshold, it is determined that the eating tableware is in a placed state; and when the acceleration sensor When continuously experiencing the first action, the second action, the third action and the fourth action, it is determined that the eating tableware is in the eating state, wherein the first action corresponds to the downward direction of the Y-axis gravitational acceleration of the acceleration sensor, so The second action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising, and then a concave waveform appears, the third action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising again, and the fourth action corresponds to the acceleration sensor’s The acceleration of gravity on the Y axis decreases; and the time period that is not identified as the eating tableware placement state and the eating tableware eating state is determined as the eating tableware picking state.
一具体实施例中，所述第三获取模块，具体用于根据计算进食速度，其中，Ti是当前最近的一次进食状态发生的时刻，Ti-1是前一次进食状态发生的时刻，μ是常系数。In a specific embodiment, the third acquisition module is specifically configured to Calculate the eating speed, where T i is the moment when the latest eating state occurs, T i-1 is the moment when the previous eating state occurs, and μ is a constant coefficient.
一具体实施例中，该装置还包括提醒模块，In a specific embodiment, the device further includes a reminder module,
所述提醒模块，用于根据所述进食速度进行判断，当所述进食速度满足预设的提醒条件时，采用预设的提醒方式进行提醒。The reminding module is used for judging according to the eating speed, and when the eating speed satisfies a preset reminding condition, a preset reminding method is used to remind.
一具体实施例中，该装置还包括分析模块，In a specific embodiment, the device also includes an analysis module,
所述分析模块，用于对所述获取的进食速度进行分析。The analysis module is configured to analyze the acquired eating speed.
一具体实施例中，该装置还包括展示模块，In a specific embodiment, the device further includes a display module,
所述展示模块，用于对所述获取的进食速度进行展示。The display module is used to display the acquired eating speed.
一具体实施例中，以下一个或多个模块位于相同或不同的实体设备上：第一获取模块、第二获取模块、第三获取模块、提醒模块、分析模块、展示模块。In a specific embodiment, one or more of the following modules are located on the same or different physical devices: a first acquisition module, a second acquisition module, a third acquisition module, a reminder module, an analysis module, and a display module.
本发明实施例所述的一种获取进食速度的方法及装置，获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上；对所述加速度信息进行分析，获取进食动作周期；获取所述进食动作周期内的进食速度。本发明实施例所述的技术方案基于加速度信号识别进食速度，实现简便且可用性较高；另外，本发明一实施例将进食速度识别的相关数据传输至移动终端，供移动终端进行统计分析，从而能够进一步提高分析准确度。A method and device for obtaining eating speed described in the embodiments of the present invention, obtains acceleration information of an acceleration sensor, and the acceleration sensor is set on the eating tableware; analyzes the acceleration information to obtain the eating action cycle; obtains the Eating speed during the eating motion cycle. The technical solution described in the embodiment of the present invention is based on the acceleration signal to identify the eating speed, which is easy to implement and has high usability; in addition, an embodiment of the present invention transmits the relevant data of eating speed identification to the mobile terminal for statistical analysis by the mobile terminal, thereby The analysis accuracy can be further improved.
附图说明Description of drawings
图1为本发明实施例一种获取进食速度的方法流程示意图；Fig. 1 is a schematic flow chart of a method for obtaining eating speed according to an embodiment of the present invention;
图2为一具体实施例中，在进食餐具(筷子)上设置三轴加速度传感器的情况示意图；Fig. 2 is a schematic diagram of a situation in which a three-axis acceleration sensor is set on eating tableware (chopsticks) in a specific embodiment;
图3为实施例一种进食状态下加速度传感器Y轴的重力加速度分量示意图；Fig. 3 is a schematic diagram of the gravitational acceleration component of the Y-axis of the acceleration sensor under the eating state of an embodiment;
图4为本发明实施例一次完整的用餐的状态与进食速度的识别情况示意图；Fig. 4 is a schematic diagram of the state of a complete meal and the identification of eating speed in an embodiment of the present invention;
图5为本发明实施例一种获取进食速度的装置结构示意图；Fig. 5 is a schematic structural diagram of a device for obtaining eating speed according to an embodiment of the present invention;
图6为本发明实施例再一种获取进食速度的装置结构示意图；Fig. 6 is a schematic structural diagram of another device for obtaining eating speed according to an embodiment of the present invention;
图7为本发明实施例再一种获取进食速度的装置结构示意图；Fig. 7 is a schematic structural diagram of another device for obtaining eating speed according to an embodiment of the present invention;
图8为本发明实施例再一种获取进食速度的装置结构示意图；Fig. 8 is a schematic structural diagram of another device for obtaining eating speed according to an embodiment of the present invention;
图9为本发明实施例一种端到端系统结构示意图。FIG. 9 is a schematic structural diagram of an end-to-end system according to an embodiment of the present invention.
具体实施方式detailed description
为了简便有效地识别进食速度，本发明实施例提出基于加速度信号的轻量级识别进食速度的方案。In order to identify the eating speed simply and effectively, the embodiment of the present invention proposes a light-weight solution for identifying the eating speed based on the acceleration signal.
具体的，本发明实施例利用加速度信号，识别进食的关键动作，对每一次进食动作周期进行识别，从而识别出进食速度，如图1所示，本发明实施例提供一种获取进食速度的方法，该方法包括：Specifically, the embodiment of the present invention uses the acceleration signal to identify the key action of eating, and recognizes each eating action cycle, thereby identifying the eating speed. As shown in Figure 1, the embodiment of the present invention provides a method for obtaining the eating speed , the method includes:
步骤11：获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上。Step 11: Obtain the acceleration information of the acceleration sensor, which is arranged on the eating tableware.
图2所示为一具体实施例中，在进食餐具(筷子)上设置三轴加速度传感器的情况示意图，如图2所示，三轴加速度传感器的Y轴与进食餐具(筷子)的柄方向一致。Fig. 2 shows that in a specific embodiment, a schematic diagram of a situation where a three-axis acceleration sensor is set on eating tableware (chopsticks), as shown in Figure 2, the Y axis of the three-axis acceleration sensor is consistent with the direction of the handle of the eating tableware (chopsticks) .
步骤12：对所述加速度信息进行分析，获取进食动作周期；Step 12: Analyzing the acceleration information to obtain the eating action period;
步骤13：获取所述进食动作周期内的进食速度。Step 13: Obtain the eating speed within the eating action period.
在一具体实施例中，将一次完整的用餐过程分类为3种状态，分别是：In a specific embodiment, a complete meal process is classified into 3 states, which are:
进食餐具放置状态。进食餐具放置在桌上；The state of eating tableware. Eating utensils are placed on the table;
进食餐具拿起状态。进食餐具被握在手中，包括夹菜等动作；Eating utensils pick up state. Eating utensils are held in hands, including actions such as picking dishes;
进食状态。一次进食状态从用户拿起进食餐具开始把食物送入口中开始，到用户送入食物后把进食餐具放下结束。eating state. One eating state begins when the user picks up the eating utensils and starts to deliver food into the mouth, and ends when the user puts down the eating utensils after feeding the food.
换言之，在该具体实施例中，所述进食动作周期包括：进食餐具放置状态、进食餐具拿起状态和进食状态。In other words, in this specific embodiment, the eating action cycle includes: a state of placing eating utensils, a state of picking up eating utensils, and an eating state.
在一具体实施例中，所述加速度传感器的Y轴与所述进食餐具的柄方向一致，In a specific embodiment, the Y axis of the acceleration sensor is consistent with the direction of the handle of the eating tableware,
在一具体实施例中，通过计算相邻进食状态的时间间隔，识别进食速度，即所述对所述加速度信息进行分析，获取进食动作周期，包括：In a specific embodiment, the eating speed is identified by calculating the time interval between adjacent eating states, that is, analyzing the acceleration information to obtain the eating action cycle, including:
通过识别进食餐具运动强度来判断进食餐具的放置状态，具体的，根据计算所述加速度传感器的运动强度TFA，其中，xi 2是加速度传感器第i个轴的信号的平方，当TFA小于第一阈值时，确定所述进食餐具处于放置状态。Judging the placement state of the eating utensils by identifying the movement intensity of the eating utensils, specifically, according to Calculating the motion intensity TFA of the acceleration sensor, where x i 2 is the square of the signal of the i-th axis of the acceleration sensor, and when TFA is smaller than a first threshold, it is determined that the eating tableware is in a placed state.
当所述加速度传感器连续经历第一动作、第二动作、第三动作和第四动作时，确定所述进食餐具处于进食状态，其中，所述第一动作对应所述加速度传感器的Y轴重力加速度方向向下，所述第二动作对应所述加速度传感器的Y轴重力加速度上升，之后出现凹陷波形，所述第三动作对应所述加速度传感器的Y轴重力加速度再次上升，所述第四动作对应所述加速度传感器的Y轴重力加速度下降。When the acceleration sensor continuously experiences the first action, the second action, the third action and the fourth action, it is determined that the eating tableware is in the eating state, wherein the first action corresponds to the Y-axis gravity acceleration of the acceleration sensor The direction is downward, the second action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising, and then a concave waveform appears, the third action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising again, and the fourth action corresponds to The Y-axis gravitational acceleration of the acceleration sensor decreases.
图3为实施例一种进食状态下加速度传感器Y轴的重力加速度分量示意图，如图3所示，一次典型的进食状态共有4个连续的动作，其中，动作1是开始动作，此时餐具方向向下，Y轴重力加速度方向向下；动作2是把食物送到口边，此时Y轴重力加速度处于上升状态，送到口边结束时出现因为减速动作而出现的凹陷波形；动作3是将食物从口边送入口中，此时Y轴重力加速度再次上升，达到峰值；动作4是将餐具放下，此时Y轴重力加速度处于下降沿。Fig. 3 is a schematic diagram of the gravitational acceleration component of the Y-axis of the acceleration sensor in the eating state of the embodiment. As shown in Fig. 3, a typical eating state has four continuous actions, wherein, action 1 is the start action, and the direction of the tableware is now Downward, the direction of the Y-axis gravity acceleration is downward; Action 2 is to send the food to the mouth, at this time the Y-axis gravity acceleration is in a rising state, and at the end of the delivery to the mouth, a concave waveform appears due to the deceleration action; Action 3 is Send food into the mouth from the edge of the mouth, at this time the acceleration of gravity on the Y axis rises again and reaches the peak value; action 4 is to put down the tableware, and the acceleration of gravity on the Y axis is on the falling edge at this time.
根据进食状态动作的分析，可以采用识别进食状态的方法如下：According to the analysis of the eating state action, the method of identifying the eating state can be adopted as follows:
将Y轴的原始信号通过低通滤波器分离出重力加速度分量；Separate the original signal of the Y axis through a low-pass filter to separate the gravitational acceleration component;
设置经验门限D0，D1，D2的值；Set the value of experience threshold D0, D1, D2;
寻找上升沿，极小值点需小于D0，极大值点需大于D1；To find the rising edge, the minimum value point must be smaller than D0, and the maximum value point must be greater than D1;
寻找下降沿，极小值点需小于D2；Looking for the falling edge, the minimum point must be smaller than D2;
动态更新阈值D0、D1和D2。Dynamically update the thresholds D0, D1 and D2.
另外，本发明实施例中，将没有被识别为进食餐具放置状态和进食餐具进食状态的时间段确定为所述进食餐具的拿起状态。In addition, in the embodiment of the present invention, a period of time that is not recognized as the eating tableware placement state and the eating tableware eating state is determined as the picking up state of the eating tableware.
在一具体实施例中，所述获取所述进食动作周期内的进食速度，包括：In a specific embodiment, the acquiring the eating speed in the eating action period includes:
根据计算进食速度，其中，Ti是当前最近的一次进食状态发生的时刻，Ti-1是前一次进食状态发生的时刻，μ是常系数。according to Calculate the eating speed, where T i is the moment when the latest eating state occurs, T i-1 is the moment when the previous eating state occurs, and μ is a constant coefficient.
本发明实施例一次完整的用餐的状态与进食速度的识别情况如图4所示。The state of a complete meal and the recognition of eating speed in the embodiment of the present invention are shown in FIG. 4 .
在一具体实施例中，所述获取所述进食动作周期内的进食速度之后，该方法还包括：In a specific embodiment, after acquiring the eating speed in the eating action cycle, the method further includes:
根据所述进食速度进行判断，当所述进食速度满足预设的提醒条件时，采用预设的提醒方式进行提醒。Judgment is made according to the eating speed, and when the eating speed satisfies a preset reminder condition, a preset reminder method is used to remind.
在一具体实施例中，所述获取所述进食动作周期内的进食速度之后，该方法还包括：In a specific embodiment, after acquiring the eating speed in the eating action cycle, the method further includes:
对所述获取的进食速度进行分析和/或展示。Analyzing and/or displaying the acquired eating speed.
在一具体实施例中，所述获取加速度传感器的加速度信息、和/或获取进食动作周期和/或获取所述进食动作周期内进食速度的步骤由设置于进食餐具上的进食速度获取装置执行，或者，由设置于用户终端设备上的进食速度获取装置执行。In a specific embodiment, the step of acquiring the acceleration information of the acceleration sensor, and/or acquiring the eating action cycle and/or acquiring the eating speed within the eating action cycle is performed by an eating speed acquisition device arranged on the eating tableware, Or, it is executed by the eating speed acquisition device set on the user terminal equipment.
本发明实施例还相应地提供一种获取进食速度的装置，如图5所示，该装置包括：第一获取模块51、第二获取模块52和第三获取模块53；其中，The embodiment of the present invention also correspondingly provides a device for obtaining eating speed, as shown in FIG. 5 , the device includes: a first obtaining module 51, a second obtaining module 52 and a third obtaining module 53; wherein,
所述第一获取模块51，用于获取加速度传感器的加速度信息，所述加速度传感器设置于进食餐具上；The first acquiring module 51 is configured to acquire acceleration information of an acceleration sensor, and the acceleration sensor is arranged on the tableware for eating;
所述第二获取模块52，用于对所述加速度信息进行分析，获取进食动作周期；The second acquiring module 52 is configured to analyze the acceleration information and acquire the eating action cycle;
所述第三获取模块53，用于获取所述进食动作周期内的进食速度。The third acquiring module 53 is configured to acquire the eating speed within the eating action cycle.
在一具体实施例中，所述第二获取模块52，具体用于根据计算所述加速度传感器的运动强度TFA，其中，xi 2是加速度传感器第i个轴的信号的平方，当TFA小于第一阈值时，确定所述进食餐具处于放置状态；以及当所述加速度传感器连续经历第一动作、第二动作、第三动作和第四动作时，确定所述进食餐具处于进食状态，其中，所述第一动作对应所述加速度传感器的Y轴重力加速度方向向下，所述第二动作对应所述加速度传感器的Y轴重力加速度上升，之后出现凹陷波形，所述第三动作对应所述加速度传感器的Y轴重力加速度再次上升，所述第四动作对应所述加速度传感器的Y轴重力加速度下降；以及将没有被识别为进食餐具放置状态和进食餐具进食状态的时间段确定为所述进食餐具的拿起状态。In a specific embodiment, the second acquisition module 52 is specifically configured to Calculating the motion intensity TFA of the acceleration sensor, wherein x i 2 is the square of the signal of the i-th axis of the acceleration sensor, and when TFA is less than a first threshold, it is determined that the eating tableware is in a placed state; and when the acceleration sensor When continuously experiencing the first action, the second action, the third action and the fourth action, it is determined that the eating tableware is in the eating state, wherein the first action corresponds to the downward direction of the Y-axis gravitational acceleration of the acceleration sensor, so The second action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising, and then a concave waveform appears, the third action corresponds to the Y-axis gravitational acceleration of the acceleration sensor rising again, and the fourth action corresponds to the acceleration sensor’s The acceleration of gravity on the Y axis decreases; and the time period that is not identified as the eating tableware placement state and the eating tableware eating state is determined as the eating tableware picking state.
在一具体实施例中，所述第三获取模块53，具体用于根据计算进食速度，其中，Ti是当前最近的一次进食状态发生的时刻，Ti-1是前一次进食状态发生的时刻，μ是常系数。In a specific embodiment, the third acquisition module 53 is specifically configured to Calculate the eating speed, where T i is the moment when the latest eating state occurs, T i-1 is the moment when the previous eating state occurs, and μ is a constant coefficient.
如图6所示，在一具体实施例中，该装置还包括提醒模块54，As shown in Figure 6, in a specific embodiment, the device further includes a reminder module 54,
所述提醒模块54，用于根据所述进食速度进行判断，当所述进食速度满足预设的提醒条件时，采用预设的提醒方式进行提醒。The reminder module 54 is configured to judge according to the eating speed, and when the eating speed meets a preset reminder condition, a preset reminder method is used to remind.
如图7所示，在一具体实施例中，该装置还包括分析模块55，As shown in Figure 7, in a specific embodiment, the device also includes an analysis module 55,
所述分析模块55，用于对所述获取的进食速度进行分析。The analysis module 55 is configured to analyze the acquired eating speed.
如图8所示，在一具体实施例中，该装置还包括展示模块56，As shown in Figure 8, in a specific embodiment, the device further includes a display module 56,
所述展示模块56，用于对所述获取的进食速度进行展示。The display module 56 is configured to display the acquired eating speed.
需要说明的是，以下一个或多个模块位于相同或不同的实体设备(包括但不限于进食餐具、用户终端设备)上：第一获取模块51、第二获取模块52、第三获取模块53、提醒模块54、分析模块55、展示模块56。It should be noted that one or more of the following modules are located on the same or different physical devices (including but not limited to eating utensils and user terminal devices): the first acquisition module 51, the second acquisition module 52, the third acquisition module 53, Reminder module 54, analysis module 55, display module 56.
图9所示为本发明实施例一种端到端系统结构示意图，如图9所示，该系统包括：集成有加速度计和传输模块的智能餐具、手机用户终端设备和云端平台业务系统。Fig. 9 is a schematic structural diagram of an end-to-end system according to an embodiment of the present invention. As shown in Fig. 9, the system includes: smart tableware integrated with an accelerometer and a transmission module, a mobile phone user terminal device, and a cloud platform business system.
智能餐具可以实时识别进食行为，计算进食速度，并在速度过快时发出提醒(LED灯)、同时数据传输模块将进食行为识别信息发送到用户终端设备。用户可以通过用户终端设备设置年龄、性别及进食速度提醒等个性化信息，同时查看历史数据和指导建议。用户终端设备的数据通过wifi/3G/4G上传到云端，进行数据存储备份、平台端数据展示和数据挖掘。The smart tableware can identify eating behavior in real time, calculate the eating speed, and send out a reminder (LED light) when the speed is too fast. At the same time, the data transmission module sends the eating behavior identification information to the user terminal device. Users can set personalized information such as age, gender, and eating speed reminders through the user terminal device, and view historical data and guidance suggestions at the same time. The data of the user terminal equipment is uploaded to the cloud through wifi/3G/4G for data storage backup, platform-side data display and data mining.
基于图9所示的系统，能够实现数据在智能餐具终端、手机用户终端设备、云平台的传输，能够方便地进行数据的统计分析。Based on the system shown in Figure 9, data can be transmitted between smart tableware terminals, mobile phone user terminal equipment, and cloud platforms, and statistical analysis of data can be performed conveniently.
根据上述描述可以看出，本发明实施例具备以下优点：According to the above description, it can be seen that the embodiments of the present invention have the following advantages:
1)能够在低感知度状态下，提醒用户注意进食速度，帮助用户培养良好的进食习惯。1) It can remind the user to pay attention to the eating speed in the state of low perception, and help the user to develop good eating habits.
2)内嵌加速度传感器轻量级算法，实时性强、低功耗、低成本，并且，算法集成在餐具或用户终端设备中，用户感知度低，适用情景广泛。2) The light-weight algorithm of the built-in acceleration sensor has strong real-time performance, low power consumption, and low cost. Moreover, the algorithm is integrated in tableware or user terminal equipment, with low user perception and wide application scenarios.
上述各模块可以由电子设备中的中央处理器(CentralProcessingUnit，CPU)、数字信号处理器(DigitalSignalProcessor，DSP)或可编程逻辑阵列(Field－ProgrammableGateArray，FPGA)实现。Each of the above modules may be realized by a central processing unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP) or a programmable logic array (Field-Programmable Gate Array, FPGA) in the electronic device.
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.
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