CN203838746U

CN203838746U - Meal preparation counting device

Info

Publication number: CN203838746U
Application number: CN201420220943.0U
Authority: CN
Inventors: 王勇
Original assignee: DING SHUJIA
Current assignee: DING SHUJIA
Priority date: 2014-05-04
Filing date: 2014-05-04
Publication date: 2014-09-17
Anticipated expiration: 2024-05-04

Abstract

The utility model discloses a meal preparation counting device comprising a microprocessor, a rotary coding switch unit, a state indicating lamp, a liquid crystal display screen, an antenna, a power source, a press button S1, a press button S2, a press button S3 and a press button S4; wherein the rotary coding switch unit, the state indicating lamp, the liquid crystal display screen, the antenna, the power source, the press button S1, the press button S2, the press button S3 and the press button S4 are respectively connected with the microprocessor. The counting device of the utility model is low in cost, low in work power dissipation, convenient in counting operation and stable in work.

Description

The counter of preparing for a meal

Technical field

The utility model relates to a kind of counter, relates in particular to the counter of kitchen, a kind of dining room for preparing for a meal.

Background technology

The flow of operation in general dining room is as follows: after foreground machine for ordering dishes is received order, the menu that client is ordered dishes is delivered to kitchen; Cooks prepare vegetable according to the order of order; When having prepared for a meal and having sent behind kitchen, corresponding vegetable number need to be subtracted to counting accordingly.The equipment that prior art is carried out management through figures for kitchen to the quantity of vegetable is generally based on computer system, and kitchen personnel is carried out the general computer peripheral equipment (keyboard, mouse, trace ball etc.) of the general use of counting operation, or uses touch-screen.But computer peripheral equipment convenience is poor, and touch-screen job stability in kitchen environment is low, and cost is higher.

Utility model content

The purpose of this utility model is to provide the one counter of preparing for a meal, and the number system convenience of preparing for a meal that solves prior art is poor, the problem that cost is high.

the purpose of this utility model is achieved by the following technical programs:

The one counter of preparing for a meal, comprise microprocessor 1, rotary coding switch unit 2, status indicator lamp 3, LCDs 4, antenna 5, power supply 6, button S1, button S2, button S3, button S4, described rotary coding switch unit 2, status indicator lamp 3, LCDs 4, antenna 5, power supply 6, button S1, button S2, button S3, button S4 are connected with microprocessor 1 respectively.

The purpose of this utility model can also further realize by following technical measures:

The aforementioned one counter of preparing for a meal, wherein microprocessor 1 is nRF51822 chip, described rotary coding switch unit 2 comprises rotary coding switch RES, resistance R 5, resistance R 6, resistance R 7, 2 pin of described rotary coding switch RES, 4 pin ground connection, one end of the 1 pin connecting resistance R6 of described rotary coding switch RES, another termination power vd D end of resistance R 6, one end of the 3 pin connecting resistance R7 of described rotary coding switch RES, another termination power vd D end of resistance R 7, one end of the 5 pin connecting resistance R5 of described rotary coding switch RES, another termination power vd D end of resistance R 5, 1 pin of described rotary coding switch RES, 3 pin, 5 pin respectively with 7 pin of microprocessor 1, 6 pin, 5 pin are connected.The model of described rotary coding switch RES is EC11E09244BS.

Compared with prior art, the beneficial effects of the utility model are: counting assembly cost is low, work low in energy consumption.Counting operation facility, working stability.

Brief description of the drawings

Fig. 1 is circuit diagram of the present utility model;

Fig. 2 is the circuit diagram of specific embodiment of the utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.As shown in Figure 1, the utility model counter of preparing for a meal, comprise microprocessor 1, rotary coding switch unit 2, status indicator lamp 3, LCDs 4, antenna 5, power supply 6, button S1, button S2, button S3, button S4, described rotary coding switch unit 2, status indicator lamp 3, LCDs 4, antenna 5, power supply 6, button S1, button S2, button S3, button S4 are connected with microprocessor 1 respectively.

As shown in Figure 2, it is a specific embodiment of the present utility model, wherein microprocessor 1 is nRF51822 chip, described rotary coding switch unit 2 comprises rotary coding switch RES, resistance R 5, resistance R 6, resistance R 7, the model of described rotary coding switch RES is EC11E09244BS, 2 pin of described rotary coding switch RES, 4 pin ground connection, one end of the 1 pin connecting resistance R6 of described rotary coding switch RES, another termination power vd D end of resistance R 6, one end of the 3 pin connecting resistance R7 of described rotary coding switch RES, another termination power vd D end of resistance R 7, one end of the 5 pin connecting resistance R5 of described rotary coding switch RES, another termination power vd D end of resistance R 5, 1 pin of described rotary coding switch RES, 3 pin, 5 pin respectively with 7 pin of microprocessor 1, 6 pin, 5 pin are connected.

Button S1 of the present utility model, button S2, button S3, button S4 are upper and lower, left and right four direction keys, for realizing moving up and down of vegetable selection.

Rotary coding switch (Rotary Encoder switch) is the normal switch using in automobile instrument control panel and high-end stereo power amplifier, for adjusting volume.The middle button of the utility model rotary coding switch is selection/cancel key.Choose after current vegetable, turning clockwise to realize subtracts counting, is rotated counterclockwise to realize to add counting.After having counted, long by selection/cancel key, exit the menu of current selection.Rotary coding switch RES of the present utility model amounts to 5 pins, and 4,5 pin are wiring of the middle button of rotary coding switch, and 1,3 pin connect pull-up resistor, in the time of left-hand rotation, right-hand rotation knob, just has output of pulse signal at 1,3 pin.If when 1 pin is output as high level, 3 pin output high level, at this moment switch is exactly to turning clockwise; When 1 pin output high level, there is a low level in 3 pin outputs, must be just at this moment counterclockwise rotation.Chip nRF51822 judges the sense of rotation of rotary coding switch by the appearance order that judges high level, and then this rotation event is sent to system centre by wireless signal.

In this specific embodiment, consider system low-power consumption requirement and be that antijamming capability requirement has all adopted on the resistance of 47K and draws on 1 pin and 3 pin and 5 pin in stability.The P0.01 of nRF51822, P0.02 and P0.03 pin configuration are that input is in order to receive the signal of rotary coding switch.NRF51822 detects P0.01 under default situations, P0.02, be high level with the input of P0.03, once rotary coding switch is pressed, or when having clockwise or being rotated counterclockwise, will on P0.01 pin, produce low level, or P0.02 and P0.03 pin position detect low level pulse signal.

LED controls and comprises LED light (LED1) control circuit and LCD (B1) backlight control circuit.The P0.08 of nRF51822 manages (STP3410) by a P-MOS and controls opening or closing of backlight.Because the existence of pull-up resistor R9, the grid voltage of P-MOS and source voltage are all 3.3V (VDD).Therefore P-MOS is in closed condition.When nRF51822 detects after key-press event and other relevant event request that needs to show, by P0.08 mouth output low level.Between grid and gate pole, form like this negative voltage, made the work of LCD backlight circuit thereby open P-MOS, lighted backlight circuit.It is backlight that this specific embodiment LCD carries is 3.3V, 30mA white backlight LED (B1).When after P-MOS conducting, LCD backlight lightening.

LED light, for indicating status when the system works, as navigation key instruction.This LED is red vaporific LED lamp, and rated power is 1.7V 10mA.The utility model has adopted the triode (Q2) of a NPN as the switching tube of LED-backlit lamp (LED1), the base stage of the P0.11 mouth control triode of nRF51822.Under default situations, because the effect of R12 pull down resistor, the base stage of triode pulled down to low level, and now the base-emitter voltage of triode is 0.Triode is in off state.Otherwise when P0.11 mouth is output as height, there is forward bias voltage in the base stage-emitter-base bandgap grading of triode, collect point pole-emitter-base bandgap grading also bigoted in forward simultaneously.Triode now will conducting.

LCD facilitates dish delivery personnel to confirm the accuracy of selected vegetable and shows the information that some are auxiliary for showing, as battery electric quantity, the machine device number etc.The utility model taked 1 * 8(1 capable × 8 Chinese characters) the LCD screen of built-in character library.Before nRF51822 and LCD, adopt standard SPI (synchronous serial interface).Synchronously consider low-power consumption requirement, this LCD has adopted ST7565R chipset, possesses super low-power consumption characteristic.In the time there is no data transmission on spi bus, LCD will enter low power consumpting state automatically.In order further to lower power consumption, the supply voltage of the supply voltage of LCD and (B1) backlight is directly linked together, can not only close the while backlight by P-MOS like this and can close the power supply of LCD, thereby further reduce system power dissipation, lifting battery.

The utility model is connected with liquid crystal display by the FPC seat (J1) of a 30Pin.NRF51822 is connected by serial port with LCD screen.The P0.05 mouth that enables mouthful (LCD_CS) and nRF51288 of liquid crystal display is connected, and for enabling the steering logic of LCD, when P0.05 is output as high time, LCD logical circuit can be worked, otherwise the logical circuit of LCD will not worked; The reset mouth (LCD_RES) of LCD and the P0.06 mouth of nRF51288 are connected, the LCD kernel that is used for resetting, especially in the time that LCD has just started, because the existence of pull down resistor R8, LCD, in reset mode, can ensure that LCD occurs without mess code in the process powering on like this; The clock line (LCD_CLK) of LCD synchronous data transmission is connected with P0.09 with the P0.08 of nRF51288 respectively with LCD synchronous data line (LCD_SDI).Arrive LCD module for nRF51288 transmission command/data; Command/data pin (LCD_A/C) is for notifying LCD, and this communication is order or data.Other pins are the required interface of parallel transmission, and in order to ensure that LCD is without interruption by its direct ground connection, other interface is the interface of the extraneous shunt capacitance of LCD, requires to connect upper corresponding electric capacity according to LCD specifications.

The nRF51822 selecting in the utility model is the multifunction chip that powerful single-chip integration slice carries 2.4GHz super low-power consumption blue teeth wireless function and ARM Cortex-M0.Adopt this chip solution can reduce as far as possible peripheral components quantity on the one hand, meet the low-power consumption demand of system simultaneously.The 2.4GHz hop of this chip only needs a small amount of outer member can realize the blue-teeth data transfer function of efficient stable, only 7 element: L1 of antenna interlock circuit in this specific embodiment, L2, L3 and C5, C6, C7 and C10.

Except possessing rotary coding switch, button S1 of the present utility model, button S2, button S3, button S4, as the navigation key of 4 directions, fast carry out some menu setectings and setting parameter work for auxiliary dish delivery personnel.P0.26, P0.27, P0.28, the pull-up resistor of P0.29 by 4 47K moved VDD on respectively.In the situation that there is no button, the incoming level of these 4 IO mouths is height, and when there being any one button to press, some IO of nRF51822 will receive a low level signal.

Under normal mode of operation, nRF51822 judges whether that by these 4 IO mouths of timing scan a button is pressed; Under sleep pattern, these 4 IO mouths are set to the interruption pin that negative edge triggers, once there be button to press, the IO mouth circuit of nRF51822 will capture a negative edge, and terminal Cortex-M0 kernel, waken system.

In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. the counter of preparing for a meal, it is characterized in that, comprise microprocessor (1), rotary coding switch unit (2), status indicator lamp (3), LCDs (4), antenna (5), power supply (6), button S1, button S2, button S3, button S4, described rotary coding switch unit (2), status indicator lamp (3), LCDs (4), antenna (5), power supply (6), button S1, button S2, button S3, button S4 are connected with microprocessor (1) respectively.

2. the counter of preparing for a meal as claimed in claim 1, it is characterized in that, described microprocessor (1) is nRF51822 chip, described rotary coding switch unit (2) comprises rotary coding switch RES, resistance R 5, resistance R 6, resistance R 7, 2 pin of described rotary coding switch RES, 4 pin ground connection, one end of the 1 pin connecting resistance R6 of described rotary coding switch RES, another termination power vd D end of resistance R 6, one end of the 3 pin connecting resistance R7 of described rotary coding switch RES, another termination power vd D end of resistance R 7, one end of the 5 pin connecting resistance R5 of described rotary coding switch RES, another termination power vd D end of resistance R 5, 1 pin of described rotary coding switch RES, 3 pin, 5 pin respectively with 7 pin of microprocessor 1, 6 pin, 5 pin are connected.

3. the counter of preparing for a meal as claimed in claim 1, is characterized in that, the model of described rotary coding switch RES is EC11E09244BS.