KR101891675B1 - System of alarming hygiene envionment of child feeding center - Google Patents

Abstract

A system of alarming the hygiene environment of a child feeding center includes: an IoT device for measuring the hygiene environment condition of a first feeding center; a server for storing measurement data on the hygiene environment condition received from the IoT device, predicting a hygiene condition risk of the first hygiene center based on the measurement data, and determining an alarm level based on the hygiene condition risk; and a control device for operating an environmental device disposed in the first feeding center according to the alarm level. It is possible to provide the optimal solution for the feeding center.

Description

{SYSTEM OF ALARMING HYGIENE ENVIRONMENT OF CHILD FEEDING CENTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm system and a corresponding system, and more particularly, to a system and method for alarming and responding to a child food service station sanitary environment that responds actively to sanitary conditions by measuring temperature / .

The term "food poisoning" as defined in Article 2, Paragraph 10 of the Food Sanitation Act does not include legal definitions for food poisoning, but refers to any infectious or toxic disease that is caused or caused by microorganisms or toxic substances harmful to the human body due to ingestion of food. .

Food poisoning can be divided into bacterial food poisoning, chemical food poisoning, natural poisoning food poisoning and food poisoning by microbial toxic metabolites. Toxic substances are widely distributed in many foods, even if they are not harmful to health at the moment, so they can cause chronic poisoning, carcinogenicity, mutagenicity, teratogenicity and allergic reactions. It may be the cause.

The cause of food poisoning is divided into the toxin produced by the microorganism and the microorganism infection. However, unlike the infectious disease, the food poisoning bacteria is contaminated with the food, and the food which has been consumed in a certain amount (about 1 million) Occurs. Therefore, to prevent food poisoning, cleanliness, sufficient heating and rapid intake are the most important.

Food poisoning bacteria multiply in a short period of time. Temperature and humidity are the most influential factors for growth. If the growth conditions of food poisoning bacterium are good, the period of proliferation (generation period) of one dog to two dogs is very short, so one dog may multiply to millions after 4 hours.

Recently, food poisoning is on the rise due to unusually high temperatures in early spring and early fall due to global warming. Food poisoning accidents are increasing due to food cooking and storage problems in school food service facilities.

In order to prevent food poisoning, care must be taken in cooking and preprocessing of food, but the place and time of storage of cooked food is also very important to prevent food poisoning in summer.

For example, if the temperature is 25 ° C or more and less than 30 ° C and the relative humidity is 80% is expected to last for about 6 hours, or the temperature is more than 30 ° C and the relative humidity is 70% Or when the temperature exceeds 30 ° C for more than 10 hours, or when the relative humidity exceeds 90% for more than 24 hours, or when the daytime temperature difference suddenly rises to 10 ° C or higher, Or vibrio parahaemolyticus is more than 10,000 per gram, and when the enteritis vibrio contamination is spread, special attention is paid to the cooking, handling and storage of the food because the incidence of food poisoning is very high.

Korean Registered Patent No. 1,178,040 (Notice of August 29, 2012)

An object of the present invention is to provide a child food service sanitary environment warning and response system capable of maintaining an appropriate condition of a foodservice station (for example, a group meal facility of a daycare center) and providing an optimum solution to the foodservice station .

According to an aspect of the present invention, there is provided a system for alarming and responding to a sanitary environment of a child food-service station, comprising: an Internet (IoT) device for measuring a sanitary condition of a first foodservice station; A server for storing measurement data on the sanitary environment state received from the IoT device, predicting a sanitary condition risk of the first foodservice station based on the measurement data, and determining an alarm level based on the sanitary condition risk; And a controller for operating the environmental device disposed in the first foodservice station according to the alert level.

According to one embodiment, the IoT device includes: a sensor for measuring a state of the hygiene environment and outputting a measurement signal; A communication module for transmitting the measurement signal or data corresponding to the measurement signal to the server through a communication network; A first display module for displaying the measurement signal or a measurement index corresponding to the measurement signal; A second display module for displaying one level step determined from among the plurality of level steps based on the measurement signal or the measurement index; And an alarm module for generating an alarm based on the level step. Here, the hygienic environmental condition includes at least one of temperature, humidity, fine dust, and salinity of the food, the measurement index includes at least one of a food poisoning index and a fine dust index, and the plurality of levels The steps may be set dynamically by the server.

According to an embodiment, the server may predict a change in the sanitary environment state of the first food service station based on the data pattern and the measurement data, and determine the alert level based on the change in the predicted sanitary environment state And if the alarm level is a first step, display the measurement signal or the measurement index via the first display module of the IoT device, and if the alert level is a second step, If the alarm level is the third level, an alarm is periodically generated through the alarm module of the IoT device, an alarm message is transmitted to the field manager terminal connected to the server, Operating the environment device via the device, and if the alarm level is the fourth step, continuously outputting an alarm through the alarm module of the IoT device An alarm message is transmitted to the general administrator terminal connected to the server, and the environment device can be operated through the control device. Here, the data pattern may be derived through analysis of cumulative data obtained by accumulating the measurement data, and the environment apparatus may include at least one of an air conditioner, an air blower, and an air purifier.

The child food service environment warning and response system according to the embodiments of the present invention calculates food poisoning indices by measuring (and monitoring) temperature / humidity and fine dust of a foodservice station in real time, and calculates indexes The appropriate environment of the workplace can be maintained.

In addition, the hygiene environment warning and response system of the child food service center can increase the reliability of the measurement data by real-time measurement, and can improve the efficiency and the productivity of the manager's work.

Furthermore, the Children's Feeder Sanitary Environment Alarming and Response System can analyze data collected from IoT devices and provide an optimal solution tailored to individual facilities (or by workshops).

1 is a block diagram illustrating a child food service environment sanitary environment alarm and response system in accordance with embodiments of the present invention.
FIGS. 2A to 2C are views showing an example of an IoT device included in the child food service station sanitary environment warning and response system of FIG. 1. FIG.
FIG. 3A and FIG. 3B are diagrams showing an example of a child feeding area sanitary environment warning and response system of FIG. 1. FIG.
FIG. 3C is a flowchart illustrating an example of the IoT sensor measurement index notification method performed in the child food service station sanitary environment alarm and response system of FIG. 3A.
FIG. 3D is a diagram showing alarms and responses performed in the child food service station sanitary environment example alarm and response system of FIG. 3A.
FIG. 4 is a block diagram showing an example of a server included in the child food service station sanitary environment warning and response system of FIG. 1. FIG.
FIG. 5A is a diagram illustrating an example of a screen output through the IoT device of FIG. 2. FIG.
FIG. 5B and FIG. 5C are views showing examples of screens output through a user terminal included in the child food service station sanitary environment warning and response system of FIG. 1;
FIG. 6 is a flowchart showing the IoT sensor measurement index notification method performed in the child food service station sanitary environment alarm and response system of FIG. 1;
FIG. 7 is a block diagram showing an example of a child care facility sanitary environment warning and response system of FIG. 1. FIG.
FIG. 8A is a view showing an example of a pressure sensor included in the child care center hygiene environment warning and response system of FIG. 7; FIG.
FIG. 8B is a view showing an example of a cooking monitoring module included in the child food service station sanitary environment warning and response system of FIG. 7; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a block diagram illustrating a child food service environment sanitary environment alarm and response system in accordance with embodiments of the present invention.

1, a child food service sanitary environment alert and response system 100 (or an IoT sensor measurement index notification system, an IoT sensor measurement index notification device, an IoT sensor measurement index notification) An IoT sensor, an IoT sensor module, a sensing node), a controller 120, a server 130 (or a processing module), an administrator terminal 140 and a user terminal 150. IoT sensor measurement index Ali system 100 can utilize internet of things (IoT) technology.

The IoT device 110, the control device 120, the server 130, the administrator terminal 140, and the user terminal 150 may be interconnected through a wired / wireless network. For example, the administrator terminal 140 and the user terminal 150 access the server 130 through a web access method (or a site access method), call real-time measurement data processed by the server 130, can do. The functions of the child food service environment warning and response system 100 or the IoT sensor measurement index notification method described later may be implemented in a program (or software) (for example, an application program) The server 130 may display data processed by the server 130 or may output an event alarm provided by the server 130. [

Hereinafter, the IoT device 110, the control device 120, the server 130, the administrator terminal 140, and the user terminal 150 will be described in detail with reference to FIG.

The IoT device 110 is located in a first food service station (or a first area) where food is located and generates environmental information (or sensor data) by sensing the hygiene environment state (or environmental information) of the first foodservice station . Here, the food is collectively referred to as agricultural products, aquatic products, livestock products, processed foods and the like, and may have a first identifier (for example, a bar code, a QR code, and the like). The first foodservice station may be a space or a workplace in which food is placed, for example, a kitchen in which food is processed or a storage place in which food is stored, a refrigerator (or a refrigerator), a freezer, a warehouse or the like. Hereinafter, it will be assumed that the first feeding station is a feeding station (or a feeding facility of a daycare center).

The hygienic environmental conditions include the presence and concentration of drugs (e.g., pesticides, pesticides, antibiotics, etc.) as well as temperature, humidity, gas concentrations (e.g., nitrogen dioxide, ammonia, carbon monoxide, The environmental information may include time information and environmental condition information (or external condition information) when the sanitary environment condition is sensed.

The IoT device 110 may automatically store the generated environment information (or sensor data) in real time, and may transmit environment information (or sensor data) to the server 130 in real time. For example, environmental information (or sensor data) is transmitted to the server 130 in real time, and can be monitored in real time by the administrator terminal 140 or the like connected to the server 130. In addition, some of the environmental information may be processed and displayed through the user terminal 150. [

In one embodiment, the IoT device 110 includes a display module and may display a measurement index such as a food poisoning index, a fine dust index, etc., provided from a server 130 described below.

The specific configuration of the IoT device 110 will be described later with reference to Fig.

The control device 120 is embedded in the environment device or disposed adjacent to the environment device and can operate the environment device according to the control (or command) of the server 130, or can control the operation of the environment device. Here, the environmental device is an apparatus that directly improves the sanitary environment of the first foodservice station, and may include, for example, an air conditioner (or an air controller), an air blower, an air purifier and the like.

The server 130 stores the measurement data on the hygiene environment state received from the IOT device 110, predicts the hygiene state risk of the first foodservice station based on the measurement data, and determines the alarm level based on the hygiene state risk . In addition, the server 130 may generate an alarm based on the alarm level, or may perform the corresponding operation (for example, the operation control of the environment apparatus) step by step.

In one embodiment, the server 130 may determine the first food poisoning of the first food service station (or first region, first region, first region, e.g., first school, first child care house) And the first fine dust index can be calculated. The composition for calculating the food poisoning index and the fine dust index will be described later with reference to Fig.

1, the IoT device 110 is disposed at the first food-cooking station, and the server 130 calculates the first food poisoning index and the first fine dust index of the first foodservice. However, the present invention is limited to this It is not. For example, the child food service sanitary environment warning and response system 100 is arranged in a second food service station (or a second area, for example, a second care house) and measures the temperature, humidity and fine dust of the second food service station The server 130 may calculate the second food poisoning index and the second fine dust index of the second foodservice based on the second environmental information.

In embodiments, if the second feeding station is adjacent to the first feeding station and the second food poisoning index of the second feeding station is out of the safe range, the server 130 generates an alarm signal (e.g., an alarm signal) for the first feeding station and the second feeding station For example, a food poisoning alert / warning signal). In this case, not only an alarm signal is output through the second IoT device disposed in the second food-cooking station, but also an alarm signal is outputted through the IoT device 110 disposed in the first food-cooking station, (Or the first area), which is the adjacent area, as well as the possibility of the spread of food poisoning and the like from the second foodservice station.

The user terminal 150 may request the server 130 to provide environment information and display the environment information provided from the server 130. For example, the user terminal 150 receives a first identifier for a first food service station through an input module such as a scanner, a keyboard, and a touch screen, receives data such as environmental information request, environmental information, And can output / provide environmental information to a user through an output module such as a display device, a speaker device, and the like. For example, the user terminal 150 may be implemented as a desktop, tablet PC, PDA, smart phone, or the like.

The manager terminal 140 may be assigned to a manager who manages a server 130 (e.g., a feeding facility of a nursery as a first foodservice) or a terminal used by a manager, a child feeding center sanitary environment example alarm and response system The setting value of the server 100 may be provided to the server 130. Also, the administrator terminal 140 may receive and output environment information similar to the user terminal 150. [ Meanwhile, the administrator terminal can be divided into a site administrator terminal assigned to the site administrator, and a general administrator terminal assigned to the server 130 or the general administrator who manages the entire system.

1, the child care facility hygiene environment warning and response system 100 measures (and monitors) the temperature / humidity and fine dust of a foodservice station (for example, a feeding facility of a daycare center) in real time , Anticipate the sanitary condition risk, determine the alarm level based on the risk status risk, and perform the alarm and response step by step according to the alarm level. The child feeding area sanitary environment warning and response system 100 remotely controls environment devices (for example, air conditioner, ventilator, etc.) provided in the food service station through the control device 120 in the corresponding process, The environment can be maintained. In other words, the child feeding area sanitary environment warning and response system 100 transmits and manages the data of the IoT device 110 to the server 130, thereby systematically and effectively improving the environment of the workplace and securing an optimal condition have.

In addition, the child feeding center sanitary environment warning and response system 100 can increase the reliability of the measurement data by real-time measurement, and can lead to improvement of efficiency and productivity of the manager's work.

Further, the child food service sanitary environment warning and response system 100 can analyze data collected from the IoT device 110 and provide an optimal solution tailored to the individual facility (or by workshops). For example, the environment can be directly improved through interlocking with the air conditioner, and the characteristics (or pattern) of the cooking can be analyzed based on the change in temperature / humidity.

Finally, as will be described below with reference to FIGS. 5A through 5C, the child food service sanitary environment warning and response system 100 allows the user to confirm data and analysis data in various ways according to the access level, using the user interface via the web Can be done.

The IoT device 110 may be directly connected to the server 130 to sense or generate the alarm 130. The alarm 130 may be provided to the IoT device 110, (Or sensor data) to the server 130 in real time.

FIGS. 2A to 2C are views showing an example of an IoT device included in the child food service station sanitary environment warning and response system of FIG. 1. FIG.

2A to 2C, the IoT device 110 includes a sensor 210 (or a sensor module), a communication module 220 (or a wireless communication module), a first display module 230, (Or input module), a USB 270 (or an interface module), and a controller 280 (or an alarm module) 250 (or an alarm device) Or a control module, a processing module). Although not shown in FIG. 2A, the IoT device 110 may further include a power module (or a battery).

The sensor 210 can measure the state of the sanitary environment and output a measurement signal. The sensor 210 may correspond to all kinds of sensors for converting physical quantities such as temperature, humidity, fine dust, etc. into electrical signals. For example, the sensor 210 may include a temperature sensor for measuring the temperature of the first food- The sensor 210 may include a gas sensor that measures the gas concentration of the first food-and-drink station in accordance with the purpose and location of the IoT device 110, The gas concentration may include at least one of a nitrogen dioxide concentration, an ammonia concentration, and a carbon monoxide concentration. Further, the sensor 210 may further include a fine dust sensor The fine dust sensor measures the fine dust concentration in the first feeding station, and in this case, the server 130 (or the processing module 250) can calculate the fine dust density based on the fine dust density.

The communication module 220 transmits sensor data corresponding to a measurement signal or a measurement signal to the server 130 and transmits a setting value (for example, a setting value for determining a range of a level step to be described later, Or the range of the level step itself) and the like. For example, the communication module 220 may be implemented as a wireless communication module, and may be connected to or connected to a communication network (or the Internet) through wireless communication technology to transmit the sensor data to the server 130.

The first display module 230 may display a measurement index (e.g., food poisoning index, fine dust index) corresponding to a measurement signal or a measurement signal. For example, the first display module 230 may be implemented as a numeric indicator and may display real numbers of various indexes or the like calculated through sensor values or sensor values acquired through the sensor 210 . A plurality of first display modules 230 may be provided according to the number of values to be displayed.

The second display module 240 may display one level step determined from among the plurality of level steps based on the measurement signal or measurement index. Here, the plurality of level steps include an attention step (or a first step), an attention step (or a second step), an alarm step (or a third step), and a risk step (or a fourth step) Level step-by-step ranges can be set dynamically (e.g., based on external conditions such as time, weather, etc.) in the server 130. For example, the second display module 240 is implemented as an LED indicator, and classifies the exponent or the like calculated through the sensor value or the sensor value into an arbitrary range in a stepwise manner so that the current value (i.e., the current sensor value) The steps to which they belong can be displayed in different colors. For example, the second display module 240 may display the step of interest in green and the step of risk in red.

The alarm module 250 may generate an alarm based on the determined level step. For example, the alert module 250 may alert using a sound if the determined level step is to belong to a particular step.

The button 260 may release the alarm of the alarm module 250 or give a special function (or additional input) of the IoT device 110.

The USB 270 is an interface for externally providing network information, device information, operation information, and the like, and power of the IoT device 110 can be supplied through the USB 270. [

The controller 280 may control the operation of each of the sensors 210 to 270. Further, the controller 280 can calculate the measurement index based on the environmental information. The configuration for calculating the measurement index is substantially the same as the configuration for calculating the measurement index in the server 130, which will be described in detail with reference to FIG.

In embodiments, the controller 280 (or the server 130) may determine whether food in the first food service station is corrupt based on the gas concentration measured at the gas sensor. For example, if the measured first gas concentration in the gas sensor exceeds the first reference concentration, it can be determined that the food is corrupted. In addition, the controller 280 may determine that the medicines (e.g., agricultural chemicals, antibiotics, etc.) have been processed on the food when the rate of change of the first gas concentration with time is lower than the first reference speed.

In embodiments, IoT device 110 may operate in one of a first mode (or sleep mode) and a second mode (or wake-up mode). In a first mode, IoT device 110 may block or stop powering at least one of sensor 210 and communication module 220 (and first and second display modules 230, 240) have. In the second mode, the IoT device 110 can supply power to the sensor 210, the communication module 220, and the like. For example, the IoT device 110 may switch from the first mode to the second mode according to a predetermined period (or timer) to perform sensing, processing, and display operations, and then switch to the first mode. For example, the IoT device 110 may be configured to operate in a first mode based on an external input signal (e.g., an input signal of a user to an external button, an open signal of a door of a refrigerator) It is possible to switch to the second mode, and switch to the first mode after a predetermined time has elapsed. Thus, the IoT device 110 can minimize power consumption.

2B shows an example in which the IoT device 110 is implemented as a fine dust indicator 110a. In FIG. 2C, the IoT device 110 is implemented as a refrigerator state notification device 110b For example. The operation of each of the components included in the fine dust index indicator 110a and the refrigerator status notification device 110b is substantially the same as each of the components described with reference to FIG. 2a, and thus redundant description will not be repeated.

FIG. 3A and FIG. 3B are diagrams showing an example of a child feeding area sanitary environment warning and response system of FIG. 1. FIG. FIG. 3C is a flowchart illustrating an example of the IoT sensor measurement index notification method performed in the child food service station sanitary environment alarm and response system of FIG. 3A. FIG. 3D is a diagram showing alarms and responses performed in the child food service station sanitary environment example alarm and response system of FIG. 3A.

First, referring to FIGS. 3A and 3B, a child food service area hygiene environment warning and response system 100 may be constructed in a day care center (or a feeding facility and a feeding facility in a day care center).

The IoT apparatus 110 may include a food poisoning index measuring instrument 111, a fine dust measuring instrument 112, a refrigerator temperature and humidity meter 113 and a salinity meter 114 for measuring food poisoning index . Each of the instruments 111 to 114 may access the cloud using a wireless communication technology and transmit sensor data or the like to the server 130.

The control device 120 may include an air conditioner controller 121 for controlling the air conditioner (or an air conditioner), an air conditioner controller 122 for controlling the air conditioner, an air conditioner controller 123 for controlling the air conditioner, Each of the controllers 121 to 123 may receive a control signal corresponding to an alarm level (e.g., a danger level, or the like) or an alarm level from the server 130 using a wireless communication technique.

The server 130 may apply a data analysis algorithm to the sensor data acquired from the instruments 111 to 114 to predict the hygiene state risk of the day care center, determine the alarm level, and provide an alarm and corresponding service according to the alarm level have. The server 130 may also provide a web browser for data verification accessible by the administrator terminal 140, the user terminal 150, etc. connected to the server 130.

Referring to FIG. 3C, the IoT sensor measurement index notification method may be performed in the child food service sanitary environment warning and response system 100. FIG.

The method of FIG. 3C (or the child food place hygiene environment warning and response system 100) analyzes accumulated data (i.e., data obtained by accumulating measurement data or sensor data) stored in a database (not shown) It is possible to grasp the data pattern due to the external condition change (S320). Independently, the method of FIG. 3C can measure the current sensor information through the IoT device 110, transmit it to the server 130, and analyze the measurement data (S340).

Then, the method of FIG. 3C predicts the change of the indoor state (or the sanitary environment state and the sanitary state risk diagram) based on the measurement data (or the analysis result of the measurement data) and the data pattern (S350) (S360). Thereafter, the method of FIG. 3C may perform an alarm and correspondence according to the determined alarm level (S370).

Referring to FIG. 3D, a first table (TABLE 1) indicating alarms and responses according to alarm levels is shown.

When the alarm level is the first level (or the stage of interest), the child food service sanitary environment warning and response system 100 displays the current status of the child foodservice environment through the display modules 230 and 240 of the IoT device 110, (Or a sensing value, a sensing index) of the sanitary environment.

When the alarm level is the second level (or the caution phase), the child food service sanitary environment warning and response system 100 displays the current state of the current food in the child care center through display modules 230 and 240 of the IoT device 110, (For example, a short alarm sound once) through the alarm module 250 of the IoT device 110. The alarm module 250 of the IoT device 110 displays the sanitary environmental condition (or sensing value, sensing index)

When the alarm level is the third level (or the alarm level), the child food service sanitary environment warning and response system 100 displays the current sanitary condition status through the display modules 230 and 240, (Or a user terminal 150) of a field manager (i.e., a manager who manages daycare centers) outputs a periodic alarm (e. G., Periodically ringing a short alarm) And may also control or operate the environmental device located at the day care center via the control device 120. [

If the alarm level is the fourth level (or the dangerous level), the child food service sanitary environment warning and response system 100 displays the current sanitary condition status through the display modules 230 and 240, Outputs a continuous alarm (e. G., A long-lasting alarm continuously sounds) through the module 250 and sends an alarm message to the administrator terminals 140 possessed by the field manager and general manager, The device 120 can control or operate the environmental device disposed in the child care home.

As described with reference to FIGS. 3A to 3D, the child food service sanitary environment warning and response system 100 (and the IoT sensor measurement index notification method) is configured to predict a hygiene state risk based on sensor data relating to a sanitary environment condition, And correspondence can be performed step by step. In particular, the child food service sanitary environment warning and response system 100 can improve the environment of the corresponding daycare center (or foodservice station) by operating an environmental device such as an air conditioner or the like at the corresponding stage.

FIG. 4 is a block diagram illustrating an example of a server included in the child food service station sanitary environment alarm and response system of FIG. 1, FIG. 5A is a diagram illustrating an example of a screen output through the IoT device of FIG. 2, 5b and 5c are views showing an example of a screen displayed through the user terminal included in the child food service station sanitary environment warning and response system of Fig.

4, the server 130 includes a communication unit 410, a monitoring unit 420, an analysis unit 430, an input / output unit 440, a database 450, an information providing unit 460, . ≪ / RTI >

The communication unit 410 receives food environment information (or sensing data) (and location information) from the IoT device 110 and can transmit and receive data between the user terminal 150 and the administrator terminal 140. The communication unit 410 collects data on LoRa communication with the IOT apparatus 110 on the field, and can communicate with the Wifi or LAN. In addition, in an environment in which there is no Wifi or LAN, the communication unit 410 can communicate using the WCDMA (LTE) method.

The monitoring unit 420 can continuously monitor the sanitary condition of the first foodservice station (for example, a nursing home, a foodservice station) in real time.

In one embodiment, the monitoring unit 420 can determine the corruption state of the food based on the gas concentration contained in the sensor data. For example, if the concentration of ammonia is equal to or higher than the first reference value (ppm), the monitoring unit 420 may determine that the food is corrupt. For example, if the concentration of nitrogen dioxide is equal to or greater than the second reference value, the monitoring unit 420 may determine that the food is corrupted. If the rate of change of the first gas concentration with time is lower than the first reference rate, the monitoring unit 420 may determine that the medicines (e.g., agricultural chemicals, antibiotics, etc.) have been processed on the food.

The analyzer 430 may calculate the food poisoning index based on the sensor data. Here, the food poisoning index can be a value obtained by predicting the occurrence probability of food poisoning according to the weather based on past data on the occurrence of food poisoning.

In the embodiments, the analyzer 430 can calculate the food poisoning index based on the following equation (1).

[Equation 1]

P2 is the weight of the viral food poisoning, W2 is the weight of viral food poisoning, a0 is a constant, a1, a2, a3 and a4 are the weight of the food poisoning, W1 is the weight of the food poisoning, Is the coefficient, t1 is the current temperature, to is the lowest temperature, p1 is the fine dust concentration, and h is the current humidity.

In other words, the food poisoning index is equal to the sum of the probability of occurrence of bacterial food poisoning and the probability of occurrence of viral food poisoning, and bacterial food poisoning is increased as the temperature (ie temperature), the lowest temperature, Sexual food poisoning can be increased with bacterial food poisoning, lower temperature (ie temperature), lower temperature, higher fine dust, and higher humidity. On the other hand, the weight values w1 and w2 may be preset and stored in a time-based manner (for example, monthly, weekly) based on the result of past food poisoning occurrence.

Meanwhile, the calculated food poisoning index can be provided to the IoT device 110 and displayed through the display module 230.

As shown in FIG. 5A, the food poisoning index can be displayed together with environmental information such as current temperature, current humidity, and the like.

On the other hand, the food poisoning index is classified into four stages according to its size: danger, warning, attention, and attention. The level of the food poisoning index, the range of the index, and the countermeasures may be as shown in [Table 1].

system Exponent range Countermeasures danger 86 or more - Corruption in three to four hours.
- The possibility of food poisoning is very high, so there is a specific boundary for preventing food poisoning.
- If you have suspected food poisoning symptoms such as diarrhea and vomiting, visit the medical institution and follow the doctor's instructions
- Patients suspected of food poisoning should immediately stop participating in food preparation warning 71 or more
Less than 86 - Corruption in four to six hours.
- The possibility of food poisoning is high, so there is a need for prevention of food poisoning.
- Cooking tools can be cleaned and disinfected to prevent bacterial contamination, shelf life, storage methods, etc.
Check and cook food. Special attention should be paid to storage. caution 55 or more
Less than 71 - 6 to 11 hours of corruption
- The possibility of food poisoning is an intermediate stage, so caution should be paid to prevent food poisoning.
- Cooked food should be fully cooked for more than 1 minute at 75 ℃ (seafood 85 ℃)
Whenever possible, store and transport at 10 ° C or below using an ice box. Attention Less than 55 - The likelihood of food poisoning is low, but there is a constant interest in preventing food poisoning.
- After using the toilet, after returning home, washing hands before cooking

On the other hand, the range of the level steps (i.e., attention, caution, warning, danger) may be varied in the server 130 based on the external conditions such as the measurement timing (for example, .

In embodiments, the analyzer 430 may generate an alarm signal according to the level of the food poisoning index or food poisoning index to which it belongs.

For example, when the food poisoning index for the first foodservice station is 90, the analysis unit 430 generates a risk signal (for example, a message indicating that the food poisoning index is a dangerous step) for the first food service station And can transmit a danger signal to the IoT device 110 installed at the first food-cooking station, the user terminal registering the first foodservice station as a region of interest, and the like. In addition, the analysis unit 430 may include a second IoT device installed in a second food service station adjacent to the first food service station (for example, a food service facility of a second school adjacent to a food service facility of a first school serving as a first food service station) The risk signal can be transmitted to the second user terminal registered as the region of interest. Here, the danger signal may be a warning message to warn against food poisoning, since the food poisoning index of the first foodservice station adjacent to the second foodservice station is a dangerous stage.

Meanwhile, the analyzer 430 may provide analysis results of the food poisoning index to the user terminal 150 in various forms (for example, tables, graphs) according to the type of the user. For example, as shown in FIG. 5C, the temperature, humidity, and calculated food poisoning indices measured at various foodservice stations (or various places) at a specific time can be output in the form of a table through the user terminal 150. 5D, the measured temperature, humidity, and calculated food poisoning index can be output in a graph form over time through a user terminal 150 at a specific foodservice station (or a specific place).

In addition, the analyzer 430 provides a user interface to be set for each user such as an alarm notification range, a measurement period / cycle, and can convert the analysis results into various forms (for example, various types of files) and output the results.

Referring again to FIG. 4, the input / output unit 440 receives information related to the setting of the server 130 from the outside, and outputs setting result information. An update period of sensor data, an analysis period, and the like.

The database 450 may accumulate sensor data for sanitary environmental conditions (e.g., temperature, humidity, fine dust concentration, etc.) as cumulative data and store the calculated food poisoning index data based thereon.

The information providing unit 460 may provide the user terminal 150 with information regarding the IoT sensor measurement index and the like. For example, the information providing unit 460 may provide the user terminal 150 with the level of the food poisoning index described in reference to Table 1, the exponent range, and the countermeasure thereof.

The control unit 470 controls operations of the communication unit 410, the monitoring unit 420, the analysis unit 430, the input / output unit 440, the database 450, and the information providing unit 460, .

As described with reference to Figs. 4 to 5C, the server 130 calculates the food poisoning index based on the food environment information, and calculates the food poisoning index based on the food environment information and the reference environment information (for example, Whether the drug (pesticide / antibiotic) is used) can be monitored and managed in real time.

FIG. 6 is a flowchart showing the IoT sensor measurement index notification method performed in the child food service station sanitary environment alarm and response system of FIG. 1;

Referring to Figures 1 and 6, the method of Figure 6 may be performed in the IoT device 110 of Figure 2a.

The method of FIG. 6 may apply power to the IoT device 110 (S610). Similarly, if the IoT device 110 is operating in a first mode (e.g., a sleep mode), the method of FIG. 6 may provide a wake-up signal or the like to the IoT device 110, The first mode can be switched to the first mode.

The method of FIG. 6 confirms the connection state (or connection state) between the IOT device 110 and the server 130 in step S620. In step S620, the temperature, humidity, (S622), and displays the measured and calculated values through the display modules 230 and 240 (S626). The measured and calculated values (" The temperature information, the humidity information, and the food poisoning index) to the server 130 (S628). Alternatively, if the IoT device 110 is not connected to the server 130, the IoT device may output a connection error (S632), connect to the relay mode (S634), and perform network setting (S636) . Here, the relay mode may correspond to a mode change to a mode for network setting.

6, the food poisoning index is calculated by the IoT device 110, but the present invention is not limited thereto. For example, after measuring temperature / humidity (S622), the measured temperature / humidity information is transmitted to the server 130, the server 130 calculates the food poisoning index, and the food poisoning index calculated by the IoT device 110 Index can be received and displayed.

It is checked whether there is a separate operation control signal (or an execution command, for example, a value set to operate with a specific period) for the operation of the IoT device 110 (S640), and a separate operation control signal If not, the mode switching can be performed in the first mode (for example, sleep mode) (S650). If there is a predetermined measurement period, the method of FIG. 6 may execute the measurement cycle (or timer) (S645) and then perform the mode change to the first mode (S650).

In the meantime, the method of FIG. 6 confirms whether the timer operates and enters the next measurement period (S660) (or confirms whether or not an operation command is received from the outside via button input, etc.) The server can repeatedly check whether the server is connected (S620) to switch to the first mode (S40).

FIG. 7 is a block diagram showing an example of a child care facility hygiene environment warning and response system of FIG. 1, FIG. 8A is a view showing an example of a pressure sensor included in the child food service place hygiene environment warning and response system of FIG. 7 And FIG. 8B is a view showing an example of the cooking monitoring module included in the child food service station sanitary environment warning and response system of FIG.

Referring to FIGS. 1 and 7, the child feeding area sanitary environment warning and response system 700 shown in FIG. 7 may be substantially the same as the child food sanitary environment warning and response system 100 shown in FIG. have. Therefore, redundant description is not repeated.

The child feeding area sanitary environment warning and response system 700 shown in Fig. 7 includes a scanner 710, a pressure sensor 720, and a warning sensor 730, as compared with the child food service sanitary environment warning and response system 100 shown in Fig. And a cooking monitoring sensor (730).

The scanner 710 may be disposed at the entrance of the first feeding station (or the first area) to obtain the first identifier of the first food to be brought into or out of the first feeding station. 8A, for example, the scanner 710 may be located on the door of a refrigerator (e.g., located outside the door of the refrigerator) and may be opened by a user of the refrigerator (For example, by using a separate proximity sensor to open the door or check whether the user is present), a message may be output to induce a scan of the first food using the scanner 710. For example, a voice message such as "Scan food to a front-facing scanner" may be output.

Meanwhile, the scanner 710 may transmit the first identifier of the scanned first food to the server 130.

For reference, the RFID tag is mounted on a food (or a wrapping paper of a food), and information of the food can be confirmed in real time using the RFID reader. However, when the food is superimposed like a refrigerator, the recognition rate of the RIFD method is remarkably decreased, If only a portion of the food (for example, only half) is used, RFID may not be able to accurately manage the food. Accordingly, the child food service environment warning and alarm system 700 according to the embodiments of the present invention can scan and manage food using a separate scanner 710 disposed at the entrance of the first foodservice station.

The pressure sensor 720 may be disposed inside the first feeding station to measure the first load by the first food. Referring to FIG. 8A, for example, the pressure sensor 720 has the same plate shape as the SUPPORT of the refrigerator, and may be constituted by a piezoelectric sensor array. The measured first load on the pressure sensor 720 may be transmitted to the server 130. [

In this case, the server 130 (or the processing module) may determine the presence or absence of foods (e.g., food) in the interior device based on the change in the output value of the pressure sensor 720 and the first identifier of the first food provided from the scanner 710 , First food) can be managed. For example, when the first food is scanned and the load is increased, the first food can be managed as refrigerated. As another example, when the load is reduced and the first food is scanned, the first food can be managed by switching from the storage state to the use state (or the to-be-processed state).

In one embodiment, the server 130 receives the first identifier of the first food via the scanner and, if the value of the pressure sensor decreases, determines that the first food has been taken out of the refrigerator, If the first reference time has elapsed since being carried out, a caution signal can be generated. Here, the caution signal is a message for inducing refrigeration if the first food is left after processing. The first reference time is a reference storage temperature of the first food (for example, 5 degrees) and an external temperature of the refrigerator 25 degrees), and may be set differently based on the temperature difference of the inside / outside of the refrigerator.

The cooking monitoring sensor 730 is disposed adjacent to a cooking device (for example, a gas range, an electric range, and the like), and detects heat generated from the cooking device (or a cooking device on the cooking device (For example, an infrared heat sensor) for measuring the temperature of the cooking device (for example, the temperature of the cooking device) 810 (for example, a vibration sensor) And a sound measurement unit 830 (e.g., a sound sensor) for sensing a sound generated. The values measured at the cooking monitoring sensor 730 (e.g., heat temperature values, vibration changes, sound changes) are provided to the server 130, and the server 130 calculates the values Whether or not the first food is normally processed, and the processing method. For example, if a chicken requires heating of 100 degrees or more, it is judged whether the chicken is to be heated or boiled based on the rate of temperature change of the pot placed in the cooking apparatus. If the temperature is 100 degrees or more, It is possible to judge whether the chicken is processed (or cooked) on the basis of the length of time that is continued, and judge whether or not the chicken is normally processed (or cooked).

The present invention can be applied to a food monitoring system, a food monitoring method, and the like.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

100: Child feeding center hygiene environment example alarm and response system
110: IoT device
120: Control device
130: Server
140: User terminal
150:
210: Sensor
220: Communication module
230: first display module
240: second display module
250: Alarm module
260: Button
270: USB
280: controller
410:
420: Monitoring section
430: Analysis section
440: Input / output unit
450: Database
460: Information providing service
470:
700: Children's Food Stations Hygiene Environment Yes Alarm and Response System
710: Scanner
720: Pressure sensor
730: Cooking monitoring sensor

Claims (3)

A first object Internet (IoT) device for measuring a hygienic environment state of a first foodservice station;
A second IoT device for measuring a hygienic environment condition of a second food service station adjacent to the first food service station; And
Storing measurement data on the hygienic environmental condition of the first food service station received from the first IoT device, predicting a sanitary condition risk of the first food service station based on the measurement data, A server for determining an alert level; And
And a controller for operating the environmental device disposed in the first foodservice station according to the alarm level,
Wherein each of the first and second IoT devices comprises:
A sensor for measuring a state of the sanitary environment and outputting a measurement signal;
A communication module for transmitting the measurement signal or data corresponding to the measurement signal to the server through a communication network;
A first display module for displaying the measurement signal or a measurement index corresponding to the measurement signal;
A second display module for displaying one level step determined from among the plurality of level steps based on the measurement signal or the measurement index; And
And an alarm module for generating an alarm based on the determined one level step,
The hygienic environmental condition includes the temperature, humidity, fine dust, and salinity of food in the first foodservice station,
Wherein the measurement index comprises at least one of a food poisoning index and a fine dust index,
Wherein the plurality of level steps are dynamically set by the server,
The server comprises:
Predicting a change in the sanitary environmental condition of the first food supply station based on the data pattern and the measurement data, determining the alert level based on the change in the predicted sanitary environment condition,
If the alarm level is a first step, display the measurement signal or the measurement index via a first display module of the first IoT device,
When the alarm level is the second level, an alarm is temporarily generated through the alarm module of the first IoT device,
An alarm is periodically generated through the alarm module of the first IoT device when the alarm level is the third level and an alarm message is transmitted to the field manager terminal connected to the server, And,
When the alarm level is the fourth level, an alarm is continuously generated through the alarm module of the first IoT device, an alarm message is transmitted to the general administrator terminal connected to the server, and the environment device And temporarily generates an alarm via the alarm module of the second IoT device. The second food service station transmits an alarm message to a user terminal having terminal information registered in the area of interest,
Wherein the data pattern is derived through analysis of accumulated data obtained by accumulating the measurement data,
The environmental device includes at least one of an air conditioner, an air conditioner, and an air conditioner,
A scanner disposed at an inlet of the refrigerator of the first food station for obtaining a first identifier of the first food to be carried into or out of the refrigerator; And
Further comprising a pressure sensor disposed inside the refrigerator to measure a first load by the first food,
Wherein the server manages internal foods of the refrigerator based on a change in the output value of the pressure sensor and the first identifier received from the scanner.
delete The method according to claim 1,
The server receives the first identifier of the first food through the scanner and, when the value of the pressure sensor decreases, determines that the first food has been taken out of the refrigerator,
The server generates a caution signal when a first reference time elapses after the first food is taken out,
Wherein the first reference time is set based on a reference storage temperature of the first food and an external temperature of the refrigerator.

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