CN201397189Y

CN201397189Y - Intelligent electronic scale for computing energy in food

Info

Publication number: CN201397189Y
Application number: CN2009200897308U
Authority: CN
Inventors: 李抗美
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-21
Filing date: 2009-04-21
Publication date: 2010-02-03
Anticipated expiration: 2019-04-21

Abstract

The utility model relates to an intelligent electronic scale for computing energy in food. The intelligent electronic scale can effectively and conveniently compute nutritional parameters and energy in food and also provide abundance of food for people at the same time, and adopts the technical scheme that the electronic scale body comprises a scale base, a support body and a scale pan, wherein the scale base is mounted at the lower part of the support body; the scale pan is positioned at the upper part of the support body; a display is arranged on the front side of the scale base; a number key and a functional control key are arranged on the lower surface of the display and the scale base on one side; the intelligent control circuit is mounted in the scale base, and has the structure thatan analog-to-digital converter is connected to the input end of a central controller, and is connected with a weighing sensor; and the central controller is connected with an encoder and an externalmemorizer, and is connected with a keystroke and a display through a programmable chip. The utility model has the advantages of simple structure, accurate computation, can be effectively used for computing abundance of food and energy required by people, and greatly be favorable to human body health; and the economic benefit and the social benefit are obvious.

Description

Calculate the food energy intelligent electronic-scale

One, technical field

The utility model relates to electronic scales, particularly a kind of calculating food energy intelligent electronic-scale.

Two, background technology

Reform and opening-up is over 30 years, and China has enough to eat and wear substantially from one, and goods and materials are greatly abundant up till now, and what people also have and must take food and selectively science is healthy with own somagenic need from.At present according to the relevent statistics, arrived very important stage about children's obesity, the incidence of disease of diabetes in addition, again and again toward middle age, juvenile stage development, all this or the like, the relevant expert has regarded as not science of the present national diet utmost point.The nutrition feed, the understanding of control heat feed has risen to certain height.And reach in various degree common recognition all kinds of crowds.But food variety is various, and the energy parameter of different foods is different again, and almost nobody can accurately calculate, and whether nutrition parameters that feed in a day is contained and heat be up to standard and exceed standard and also have no way of learning.Can this to the needs of material and cultural life and healthy very unfavorable, therefore solve the metering to needed by human body food and energy, to satisfy the healthy needs of people for current people? this is the problem that people are concerned about very much.

Three, utility model content

In view of the foregoing, for overcoming prior art defective, the purpose of this utility model, provide a kind of calculating food energy intelligent electronic-scale to people exactly, can effectively solve and can conveniently calculate, the nutrition parameters and the energy of edible food, the while also can offer the problem of people's quantity of food.Technical solution scheme of the present utility model is, include the intelligence control circuit in scale body and its scale body, said scale body is by scale base, the supporter and the scale pan constitute, scale base is contained in the bottom of supporter, the scale pan places the top of supporter, there is display in the scale base front, on the scale base of a following and side of display numerical key and function operating key are arranged, intelligence control circuit is contained in the scale base, said intelligence control circuit is, is connected to analog to digital converter on central controller (single-chip microcomputer) input end, and analog to digital converter links to each other with LOAD CELLS, central controller links to each other with code translator and external memory storage, and central controller links to each other with display with keyboard through programmable chip.

The utility model is simple in structure, use easy to operate, and accurate measurement can be effective to measure required quantity of food of people and energy, helps health, economic benefit and the obvious social benefit of people's health greatly.

Four, description of drawings

Fig. 1 is an outside perspective view of the present utility model.

Fig. 2 is the outside perspective view of another embodiment of the present utility model.

Fig. 3 is the wiring diagram of intelligence control circuit of the present utility model.

Fig. 4 is the catenation principle figure of the utility model intelligence control circuit.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Provide by Fig. 1～3, the utility model includes the intelligence control circuit in scale body and its scale body, said scale body is by scale base 4, the supporter 5 and the scale pan 1 constitute, scale base is contained in the bottom of supporter, the scale pan places the top of supporter, there is display 3 in the scale base front, on the scale base of a following and side of display numerical key and function operating key 2 are arranged, intelligence control circuit is contained in the scale base, said intelligence control circuit is, is connected to analog to digital converter on central controller (single-chip microcomputer) input end, and analog to digital converter links to each other with LOAD CELLS, central controller links to each other with code translator and external memory storage, and central controller links to each other with display with keyboard through programmable chip.

Said intelligence control circuit is, P0.0～P0.7 of central controller U1 (adopting single-chip microcomputer 89C51) is with latch U2, U6 (adopting 74LS373), D0～D7 pin of A/D analog to digital converter U0 (ADC0809 type) and programmable chip U3 (I/O interface chip 8255) links to each other, the P2.0 of central controller U1～P2.7 pin meets external memory storage U7～U9 (eeprom array), the Vcc pin of central controller U1 meets power supply+5V, the EA/VPP ground connection of central controller U1, the P1.0 of central controller U1, P1.1, the P1.2 pin meets code translator U5 (74138 type) A respectively, B, the C pin, the G2A of code translator U5, G2B, GND pin ground connection in parallel, the Ucc pin of code translator U5 connects+the 5V power supply, the Y0 of code translator U5, Y1, Y2 links to each other with the CE pin of external memory storage U7-U9 respectively, said latch U2 is respectively with programmable chip U3, A/D converter U0 links to each other, the IN0 of A/D converter U0～IN7 pin connects input end of analog signal (weighing-up wave), said latch U6 links to each other with external memory storage U7-U9, the Vcc pin of said programmable chip U3 links to each other with+5V power supply, the PA0 of programmable chip U3～PB7 pin meets keyboard KP, keyboard KP connects+the 5V power supply through resistance, PC0～PC7 of programmable chip U3, PA4, the PA5 pin connects DATA1～8 of display U4, REQ, the BUSY pin, the LEDL of display U4 ⁺, VDD pin and connection+5V power supply, LED ^-, LSS ground connection in parallel.

By said structure as can be seen, the utility model is made the master control device by cpu central processing unit (89C51), load cell signal is connected on the interface of single-chip microcomputer (89C51) by the A/D analog to digital converter, power protecting circuit, the LCD LCD of band picture and text, the eeprom array memory circuit that extends out, the matrix type keyboard control circuit;

Its interface of cpu central processing unit 89C51 (U1) P0.0-P0.7 is combined into 32 bit matrix type keyboard circuits by I/O interface chip 8255 (U3) PB0-PB7 and PA0-PA3 and finishes input function.DATA1-DATA8, REQ, the BUSY of 8255 (U3) PC0-PC7 and PA4, PA5 map interlinking literary composition liquid crystal LCD display (U4) finish the output Presentation Function.The expansion of the external memory storage of cpu central processing unit 89C51 (U1) is A0-A7 end (U7, U8, the U9 that connects EEPROM by its interface P0.0-P0.7 ...).The interface P2.O-P2.7 of cpu central processing unit 89C51 (U1) connects A8-A12 end (U7, U8, the U9 of EEPROM ...).The interface P0.0-P0.7 of cpu central processing unit 89C51 (U1) connects the I/01-I/08 end of EEPROM by latch (U6).CPU central processor 89C51 (U1) deciphers the eeprom memory chip that selection will be worked by interface P1.O-P1.2 control code translator 74138 (U5), thereby realizes the expansion work of external memory storage.The simulating signal of weighing is by A/D converter ADC0809 (UO) IN0-IN7 port, and the P0.0-P0.7 mouth that is sent to cpu central processing unit 89C51 (U1) after the conversion is finished mould/number conversion work;

Single-chip microcomputer is by interface expansion external memory storage eeprom array, the character library of the food title of storage food energy unit parameter and four kinds of different languages;

Four kinds of different language can be provided, and the user can select arbitrarily, after language is determined, and the menu that display shows, the language that is exactly user's selection shows.Band picture and text LCD LCD is contained in the front of scale base, the following delegation of display numerical key, and when display carried out menu prompt, the user only need select by numerical key, did not need the user to import any literal, had embodied grasp easy and simple to handle, easy;

Input keyboard is contained in scale base display bottom and the right, internal wiring is to control with matrix type, be provided with 10 numerical keys and some function operating keys, they are respectively: 6 of energy options buttons: heat, protein, fat content, carbohydrates, cholesterol level, sugar content (also may select with menu-style with an energy key), 8 of function selecting keys: the key of weighing, remove external packing key, shortcut, speech selection key, measurement unit standard key, acknowledgement key, upturning key, downturning key.6 on energy accumulating function key, accumulative total 1, accumulative total 2. ... (it can be used for artificial unit, the different-energy of accumulative total feed every day);

The software of control intelligence system is to be finished by the assembly language of single-chip microcomputer, and software systems are provided with the dozens of database.As: food namebase (four kinds of different language have four storehouses), the unit parameter library of six kinds of different-energies, address base.Make the user simple to operate thereby reached, purpose easy to use according to these databases and art of programming.

Working condition of the present utility model is that the energy computing system of intelligent control part is the evaluation work that adopts cpu central processing unit 89C51 and complicated software systems to finish.The user only obtains calculating the work of food energy parameter with simple button.As: the user is by the key of weighing of selection function key, I/O interface chip 8255 (U3) PB0-PB7 receives keyboard signal, after being sent to cpu central processing unit 89C51 (U1) interface P0.0-P0.7 analysis button, intelligence controlling device, starting weighing system weighs, cpu central processing unit 89C51 (U1) interface P0.0-P0.7 is sent to LCD display DATA1-DATA8 end by the PC0-PC7 of I/O interface chip 8255 (U3) simultaneously, display demonstrates " 0 " in the hurdle of weighing, prepare to weigh.When the user needing the food of calculating energy to be put on the scale pan, the inductor of weighing is sent to the IN0-IN7 mouth of A/D converter ADC0809 (UO) to simulating signal, the digital signal after the conversion is delivered to the PC0-PC7 interface of cpu central processing unit 89C51 (U1).The PC0-PC7 that delivers to I/O interface chip 8255 (figure U3) by interface P0.0-P0.7 again after cpu central processing unit 89C51 (U1) handles is sent to LCD display (U4) DATA1-DATA8 end, display demonstrates the weight of food in the hurdle of weighing, weight data stores in the RAM of working cell simultaneously.Then, the user selects calculative energy kind (as select among heat, protein, sugar content, carbohydrates, cholesterol level, fat content) in 6 energy keys.Single-chip microcomputer 89C51 select to determine the calculating energy kind according to keyboard, finds the first location of address, corresponding energy parameter storehouse to deposit among the RAM of working cell and notes down.(address location is deposited the font address of selecting one of four kinds of language to single-chip microcomputer 89C51 according to food title font address unit, do not do selection and just deposit the Chinese word library address) on display, carry out the menu demonstration of food title by interface (top had been narrated the process of cpu central processing unit 89C51 to the display demonstration), show step by step as required, find till the title that to calculate food up to the user.On the menu that shows, all there is numeral number in each food title front, once shows 10 kinds, and is provided with page turning key.Press corresponding numerical key and acknowledgement key after finding calculating food title, the energy computing system is according to page turning key, numerical key and definite key and the first location of depositing the energy parameter address that chooses, from the database of energy unit's parameter, find the food energy unit's parameter that to calculate, and carry out multiplying with the weight that leaves in the RAM of working cell, calculate the energy of this things.Interface P0.0-P0.7 by cpu central processing unit 89C51 (U1) is sent to LCD display (U4) DATA1-DATA8 end by the PC0-PC7 of I/O interface chip 8255 (U3), and display demonstrates the energy of things in the energy hurdle.Finish the energy food evaluation work.

In sum, the user only need select in ten key, really embodies simple to operate, easy to use.

Claims

1, a kind of calculating food energy intelligent electronic-scale, include the intelligence control circuit in scale body and its scale body, it is characterized in that, said scale body is by scale base (4), the supporter (5) and the scale pan (1) constitute, scale base is contained in the bottom of supporter, the scale pan places the top of supporter, there is display (3) in the scale base front, numerical key and function operating key (2) are arranged on the scale base of a following and side of display, intelligence control circuit is contained in the scale base, said intelligence control circuit is, be connected to analog to digital converter on the central controller input end, analog to digital converter links to each other with LOAD CELLS, and central controller links to each other with code translator and external memory storage, and central controller links to each other with display with keyboard through programmable chip.

2, calculating food energy intelligent electronic-scale according to claim 1, it is characterized in that, said intelligence control circuit is, P0.0～P0.7 of central controller U1 is with latch U2, U6, the D0 of A/D analog to digital converter U0 and programmable chip U3～D7 pin links to each other, the P2.0 of central controller U1～P2.7 pin meets external memory storage U7～U9, the Vcc pin of central controller U1 meets power supply+5V, the EA/VPP ground connection of central controller U1, the P1.0 of central controller U1, P1.1, the P1.2 pin meets the A of code translator U5 respectively, B, the C pin, the G2A of code translator U5, G2B, GND pin ground connection in parallel, the Ucc pin of code translator U5 connects+the 5V power supply, the Y0 of code translator U5, Y1, Y2 links to each other with the CE pin of external memory storage U7-U9 respectively, latch U2 is respectively with programmable chip U3, A/D converter U0 links to each other, the IN0 of A/D converter U0～IN7 pin connects input end of analog signal, latch U6 links to each other with external memory storage U7-U9, the Vcc pin of programmable chip U3 links to each other with+5V power supply, the PA0 of programmable chip U3～PB7 pin meets keyboard KP, keyboard KP connects+the 5V power supply through resistance, PC0～PC7 of programmable chip U3, PA4, the PA5 pin connects DATA1～8 of display U4, REQ, the BUSY pin, the LEDL of display U4 ⁺, VDD pin and connection+5V power supply, LED ^-, LSS ground connection in parallel.