1. System requirements: The nutritional meal analysis system is simple to operate and has a wide range of applications. It is not only suitable for children, adults, the elderly and other age groups, but also suitable for various clinical patients. It can be based on body temperature, height, weight, gender, activity and other factors. Calculate the patient's nutritional intake, and dynamically analyze the nutritional intake structure and balance.

2. Functional requirements:

2.1 wide range of applications: the system built-in by age, by gender, according to the amount of activity classification of various groups of dozens of nutritional intake standards, applicable to children, adults, the elderly and other types of people.

The 2.2 can calculate the intake standard according to physical signs: the system not only has built-in professional catering standards for various diseases such as diabetes, hypertension, gout, hyperthyroidism, and digestive system diseases, but also can accurately calculate the intake standard of clinical patients according to body temperature, height, weight, gender and activity, so as to ensure the accurate intake of nutrition for clinical patients.

2.3 tabular catering: catering adopts an intuitive filling method. users can directly select date or week, meal type, food or dish, weight, etc. on the table to complete catering, which is fast and easy to use.

Synchronous calculation of 2.4 nutrition components: when the user is catering, the nutrition components of various food dishes are displayed synchronously, which is convenient for users to refer to and select.

Synchronous analysis of 2.5 nutrition balance: the system synchronizes nutrition balance analysis during catering. Users can see the analysis results at any time, adjust recipes in time, and shorten manual adjustment time.

The composition proportion of 2.6 dishes is displayed synchronously: when the dishes are selected, the system synchronously displays the composition of the dishes and the corresponding proportion relationship for users' reference, thus solving the problem of inconsistent composition standards of dishes.

2.7 individual group catering multi-category support: the system can not only catering for individuals, but also catering for groups, and at the same time catering for multiple individuals or multiple groups at the same time, the management is extremely flexible.

2.8 multi-mode balance analysis: the system has a variety of balance analysis methods, which can not only complete daily balance analysis, but also carry out balance analysis by meal and week.

2.9 catering cycle dual-mode support: the system can not only carry out catering by week, but also by date, which is convenient for the catering management of special personnel.

3. Graphic analysis report: The system can print the analysis results in the form of graphic report, which is elegant and convenient for users to save, communicate and archive.

4. Efficient food inquiry: When choosing food when catering, the food can be arranged by category or by nutrition. At the same time, it supports searching by abbreviation pinyin, which is convenient and efficient.

5. Recipe printing with quantity: The system can print out the recipe and the quantity of food, which is convenient for all kinds of personnel to refer.

6. Perfect user management: The system can set a variety of permissions to meet the complex management when there are many users and ensure the authorized operation of the system.

7. Automatic data backup: The system can automatically save data to the archive location to ensure the safety of user data storage.

8. The system will formulate intake standards according to specific types. The system needs to have dozens of national recommend standards of different ages and genders and intake standards for common groups.

9. Users can customize each indicator standard, select reference standard, and select custom in specific standard. At this time, each standard data in the standard data value area can be modified, and the system will perform various analysis and calculation according to the standard.

10. Users can choose flexibly according to their needs, but only one can be selected when catering, either by week or by date. The system will provide six kinds of meals for selection, select in the food name column, the system will pop up the selection of food window for selecting the corresponding food or dishes.

11. In the food selection window, the user can select food ingredients or dishes in two ways, and the dishes may be closer to the actual dining situation. When selecting a food or dish, the quantitative data of the specific nutritional ingredients per 100 grams is presented synchronously in the right part of the window, when selecting a dish, the composition weight ratio of the dish is presented synchronously in the lower left part of the window, and the nutritional characteristics of the dish are described in the lower part of the window.

12. Select the corresponding food in the select food window, and the system will select the food and return to the catering work interface. The weight of the food is entered in the weight column, and the weight unit is specified by the user in the corresponding option. Select the fixed or automatic mode in the mode column. If the fixed mode is selected, the food will not participate in the automatic balance and keep its weight unchanged during the intelligent balance. If it is in the automatic mode, its weight can be automatically determined by the system.

13. There is a food nutrition area, which provides specific nutritional content data per 100 grams of the selected food and a description of the nutritional characteristics of the food.

14. There is an intake standard and belt analysis area. When customization is selected, the data in the recommend value column of this area can be modified. When catering, the data in the actual value column of this area is the quantitative data of various nutrients of the current catering. Users can refer to the data in this area for more in-depth analysis.

15. In the optional control area, the user can select the weight unit when catering, and the food weight will be automatically converted when the weight unit is switched. The system provides three analysis methods: meal balance will analyze the nutrition of the selected meal, daily balance will analyze the nutritional status of the selected meal preparation day, weekly balance will average the nutritional status of the meal preparation to every day for analysis, because the normal situation is mostly in weekly units, and then the average daily nutritional status is calculated, so it is named weekly balance method. Each meal heat ratio will set the percentage of each meal intake for the whole day. Whether the status is selected before each meal currently has no effect on the system.

16. In the area with composition proportion of dishes, the composition proportion of dishes in the catering will be displayed synchronously, so that users can clearly understand the selected dishes. The situation that clinical personnel cannot judge due to the same name of dishes and different practices can be effectively solved.

17. There is a nutritional balance analysis area. According to the requirements of balance analysis, this area carries out a preliminary analysis on the balance of various nutrients in the current catering, mainly the intake of energy and the three major nutrients and its balance analysis.

18. The analysis report will list medical record information, three major nutritional balance diagrams, high-quality protein distribution diagrams, detailed analysis, etc. The content of the report is more detailed than the synchronous analysis data during catering.

19. The system provides statistical queries, which can be queried and counted according to various data in medical records for in-depth analysis and research by advanced users. Press the statistics query button on the main interface, and the system pop-up window is as follows. Users can directly enter statistics query criteria, enter medical record query criteria in the upper left part, press the query button in the lower part for the specific data queried, and the right part of the lower part for the number of medical records and catering plan records that meet the conditions.

20, statistical data interface, press the generate data interface button to open the medical record data to SPSS, SAS and other professional large-scale statistical analysis software, for advanced users to carry out more professional analysis.

21, data processing, data processing to help users complete the backup and recovery of data, because the system data storage is unified and orderly, users only need to copy the contents of the corresponding folder according to the prompt, the system will not be processed separately.