CN2395339Y

CN2395339Y - Electronic dish ordering device

Info

Publication number: CN2395339Y
Application number: CN 99216747
Authority: CN
Inventors: 董春晓
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-15
Filing date: 1999-07-15
Publication date: 2000-09-06
Anticipated expiration: 2009-07-15

Abstract

The utility model relates to a dish ordering device controlled a micro-computer in the industry of restaurants. The dish ordering device is composed of an SCM, a display device, a memory, a keyboard circuit and a 485 transceiver. A customer can check menu codes offered by a restaurant and input the codes of dishes with a keyboard of the device, and thus, the dishes are ordered. The device is connected with a main control of a main station through a 485 bus. A main controller automatically carries out printing, checking, statistics and analysis for the menu sent in. The device can automatically display the sum total of dishes ordered. The device has the advantages of high automation, accurate price counting, practicality, labor cost saving, etc.

Description

The electric order dishes device

The utility model relates to a kind of microcomputerized control dish-order device that is used for catering trade.Nowadays, most restaurants all exist client and serve phenomenon the wait waiter of anxiety in the peak period of having a dinner.Its reason is that waiter's number is limited, can not when waiter receives client, wait for the long order time again for special service person of each table outfit, therefore causes problems such as other clients stand-by period length and the inconvenience of ordering dishes once more.

The purpose of this utility model is to provide a kind of onstage before starting on a long aria institute that serves the meals, client to select menu and recipe at any time, and transmits the electric order dishes device of the spectrum information of ordering dishes from trend shop side.

The utility model realizes that the above-mentioned purpose key of ordering dishes automatically is: this dishes ordering device is formed the P of described single-chip microcomputer jointly by a single-chip microcomputer, display device, storer, keyboard and circuit and 485 transceivers _2.0-P _2.3Mouth is connected with described keyboard circuit for client's choice menus; The P of single-chip microcomputer _1.4-P _1.7Mouth is connected with the Shen line storage of described storage menu unit price; The P of single-chip microcomputer _3.0-P _3.1Mouth is connected with 485 transceivers, and described 485 transceivers are connected with main control computer by bus, receives the information of main control computer and sends client's menu information; The P of single-chip microcomputer _0.0P _0.3Mouth is connected with the display device of the display menu and the amount of money.

Electric order dishes device described in the utility model can be equipped with one on each dining table, all dishes ordering devices are all linked on the main control computer of total platform by 485 buses.The menu numbering that client provides according to the restaurant, the numbering of the keyboard input dish by electric order dishes is finished and is ordered dishes.After client had order dish, the electric order dishes device showed the total charge of being ordered dishes automatically, and institute's menu was passed to the main control computer of total platform.The main control computer of total platform prints automatically, checks out, adds up, analyzes the menu that the electric order dishes device transmits.This device have automaticity height, valuation accurately, practical and save advantage such as labour cost spending.

The drawing explanation:

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is a schematic block circuit diagram of the present utility model.

Fig. 3 is a control flow chart of the present utility model.

Fig. 4 is a keyboard structure synoptic diagram of the present utility model.

Below in conjunction with accompanying drawing physical circuit of the present utility model is described below:

This device is divided into five circuit parts.First single-chip microcomputer 8031 (U13), the control entire circuit, C11, C12, C13 produce the clock of single-chip microcomputer, and C10, R17, R2, RES-BS are the reset circuits of single-chip microcomputer.It two is keyboard scan parts, is made up of R4, R5, R6, R7, R8, U4, U1, adopts the mode of line scanning.It three is display parts, is made up of U20, U10, U5, U6, U15, U16, U12, U3, L1-1～L4-6 (charactron), adopts the dynamic refresh mode.It four is that storer U22 adopts serial 93C46.It five is 485 transceivers, adopts MA * 1483.

Principle of work: after the single-chip microcomputer power-up initializing finishes, by address wire P ₂₀-P ₁₃Output low level is the row of keyboard scan display ceaselessly, read the row of keyboard display by U4 (74LSZ44), if find in the row low level is arranged, showing has key to press.Single-chip microcomputer is encoded to it according to the data of ranks, forms key assignments, and is shown on the charactron by display circuit.The dynamic refresh mode is adopted in the display part.Single-chip microcomputer adopts clock 0 mode of interrupting that its three address wire P25, P26, P27 are refreshed 15 required chip selection signals by U3 (74LS138) and U5, U6 (74LSZ73) generation demonstration, to realize dynamic refresh.Code displaying circuit U 20 (MC14513B of MOTOROLA company) produces the code displaying value.The read-write sequence of storage U22 (93C46) is produced by P1.4, P1.5, P1.6, the P1.7 of 8031 P1 mouth.Single-chip microcomputer is stored in the unit price of menu among the 93C46.The communication modes serial interrupt mode of electric order dishes device receives and sends data by 485 transceivers.8031 will be kept at the internal memory from the data that 485 network-bus receive, and handle then, and the dish inventory that will send sends to main frame by 485 buses.

Claims

1. electric order dishes device is characterized in that: this dishes ordering device is formed the P of described single-chip microcomputer jointly by a monolithic, display device, storer, keyboard and circuit and 485 transceivers _2.0-P _2.3Mouth is connected with described keyboard circuit for client's choice menus; The P of single-chip microcomputer _1.4-P _1.7Mouth is connected with the serial storage of described storage menu unit price; The P of single-chip microcomputer _3.0-P _3.1Mouth is connected with 485 transceivers, and described 485 transceivers are connected with main control computer by bus, receives the information of main control computer and sends client's menu information; The P of single-chip microcomputer _0.0P _0.3Mouth is connected with the display device of the display menu and the amount of money.