CN207936993U - A kind of portable edible oil detecting device - Google Patents

Abstract

The utility model discloses a kind of portable edible oil detecting devices, including main control module, power supply module, key-press module, oil smoke detection module, temperature detecting module, oily detection module, color detection module, WIFI module, acousto-optic indicating module and display module, the power supply module, key-press module, oil smoke detection module, temperature detecting module, oily detection module and the output end of color detection module are connected with the input terminal of main control module respectively, the WIFI module is connected with each other with main control module, the WIFI module is connected with each other with intelligent terminal, the output end of the main control module is connected with the input terminal of acousto-optic indicating module and display module respectively；The utility model can rapidly and accurately detect the oil smoke of edible oil, oil temperature, oil and edible oil color, and testing result is uploaded on smart mobile phone or tablet computer, it allows users to quickly understand the quality of edible oil, user is helped to have healthy and safe edible oil.

Description

A kind of portable edible oil detecting device

Technical field

The utility model is related to technical field of food detection, more specifically to a kind of portable edible oil detection dress It sets.

Background technology

With the improvement of living standards, edible oil consumption figure constantly increases China resident per capita, especially eaten with catering industry Extremely rapid with the increase of oily consumption figure, a large amount of used edible oils that catering industry generates can be collected by some illegal retailers, be passed through After crossing alkali refining, dehydration, decoloration, gutter oil is made and obtains interests.With the exposure of various gutter oil events, eaten caused by gutter oil Product safety problem has become public opinion focus of attention, is quickly and accurately detected also gutter oil at active demand.

Invention content

For problems of the prior art, the utility model provides a kind of portable edible oil detecting device, should Device can rapidly and accurately detect the oil smoke of edible oil, oil temperature, oil and edible oil color, and will be in testing result It passes on smart mobile phone or tablet computer, allows users to the quality for quickly understanding edible oil.

Technical solution used by the utility model is：A kind of portable edible oil detecting device, including main control module, confession Electric module, key-press module, oil smoke detection module, temperature detecting module, oily detection module, color detection module, WIFI module, Acousto-optic indicating module and display module, the power supply module, key-press module, oil smoke detection module, temperature detecting module, oil inspection The output end for surveying module and color detection module is connected with the input terminal of main control module respectively, the WIFI module and master control mould Block is connected with each other, and the WIFI module is connected with each other with intelligent terminal, and the output end of the main control module is indicated with acousto-optic respectively Module is connected with the input terminal of display module.

Preferably, the edible oil detecting device further includes the charge management module being connected with power supply module, described to fill USB charging interface and USB electric discharge interfaces, the output end and Charge Management of the USB charging interface are provided in electric management module The input terminal of module is connected；The input terminal of the USB electric discharges interface is connected with the output end of charge management module.

Preferably, the main control module uses ST89C52 microcontrollers.

Preferably, the color detection module uses TCS230 color sensors.

Preferably, the oil smoke detection module uses CS-MQR1003 sensors.

Preferably, the charge management module uses HT4901 chips.

Preferably, the WIFI module uses ESP8266 chips.

The advantageous effect that the utility model reaches is：The utility model provides a kind of portable edible oil detecting device, The device can rapidly and accurately detect the oil smoke of edible oil, oil temperature, oil and edible oil color, and by testing result It uploads on smart mobile phone or tablet computer, allows users to the quality for quickly understanding edible oil, user is helped to have health The edible oil of safety, the utility model are also used as mobile power use, meet an urgent need for smart mobile phone or tablet computer Charging.

Description of the drawings

Fig. 1 is the hardware structure diagram of the utility model；

Fig. 2 is the circuit diagram of the utility model main control module；

Fig. 3 is the circuit diagram of the utility model power supply module；

Fig. 4 is the circuit diagram of the utility model key-press module；

Fig. 5 is the circuit diagram of the utility model oil smoke detection module；

Fig. 6 is the circuit diagram of the utility model temperature detecting module；

Fig. 7 is the circuit diagram of the utility model oil detection module；

Fig. 8 is the circuit diagram of the utility model color detection module；

Fig. 9 is the circuit diagram of the utility model WIFI module；

Figure 10 is the circuit diagram of the utility model acousto-optic indicating module；

Figure 11 is the circuit diagram of the utility model display module；

Figure 12 is the circuit diagram of the utility model USB charging interface, charge management module, USB electric discharge interfaces.

Specific implementation mode

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.

Illustrate present embodiment, a kind of portable edible oil detecting device, including main control module, confession in conjunction with Fig. 1 to Figure 12 Electric module, key-press module, oil smoke detection module, temperature detecting module, oily detection module, color detection module, WIFI module, Acousto-optic indicating module and display module, the power supply module, key-press module, oil smoke detection module, temperature detecting module, oil inspection The output end for surveying module and color detection module is connected with the input terminal of main control module respectively, the WIFI module and master control mould Block is connected with each other, and the WIFI module is connected with each other with intelligent terminal, and the output end of the main control module is indicated with acousto-optic respectively Module is connected with the input terminal of display module.

Wherein, the output end of the power supply module is connected with the input terminal of main control module, and power supply module is using chargeable Lithium ion battery, power supply module are used for system power supply, ensure system worked well ,+5V the voltages of power supply module by LM1118-3.3V chips are converted to+3.3V voltages, and+5V the voltages of power supply module are converted+5V voltages by MC34063 chips For+12V voltages.MC34063 chips can by the pedestal generator with temperature self-compensation function, comparator, duty ratio The oscillator of control, the compositions such as R-S triggers and High-current output switching circuit lead to for+5V voltages to be converted to+12V voltages The ports VCC are crossed to system power supply.

The output end of the key-press module is connected to the input terminal of main control module, and key-press module uses ST5.0LF160Q types Number Independent keys input interrupt signal to the P1.7 pins of main control module by button SW0, realize unlatching or the pass of system It closes；When pressing SW0, Q7 and D5 conductings, DC-DC voltage stabilizing chips work are connected the ends VCC of main control module and are supplied for main control module Electricity.Corresponding P1.7 pins are set to output high level by main control module at once, and at this moment Q6 and Q7 conductings, entire circuit enter work State.Then main control module sets P1.7 pins to input high level state again, due to the presence of pull-up resistor R13, Q6 and Q7 is constantly on.Main control module scans always the input state of corresponding P1.7 pins, if SW0 is not pressed down, P1.7 draws Foot will be always high level.When SW0 is pressed down again, D6 conductings, main control module detects that the input of P1.7 pins is low level, At this moment it is low level state that P1.7 pins are just arranged to output by main control module, and Q6 cut-offs, if button lifts, Q7 can also be cut Only, DC-DC voltage stabilizing chips will not provide voltage for main control module, and entire circuit is off state.

The output end of the oil smoke detection module is connected with the input terminal of main control module, and the oil smoke detection module uses The CS-MQR1003 sensors of Xi'an culminant star observing and controlling company production are applied to imflammable gas detection with sensitivity, stability It is good, influence and recovery time is short, appearance and size is small advantage, and wiring is simple when in access system, and sensor is being started to work When, it needs to preheat 10min, waiting for that its stable conductivity gets off can work normally, and standby voltage+5V can be used directly System power supply is preheated, and also greatly simplifies the design of hardware aspect, the analog voltage signal acquired by oil smoke sensor A/D conversions are carried out using ADC0832, the reading of transfer process and conversion value is controlled by main control module, when smoke point generates, no Oil smoke concentration with type edible oil is slightly different.

The output end of the temperature detecting module is connected with the input terminal of main control module, and the temperature detecting module uses PT100 thermistors, when frying oil in-site measurement, oil temperature is relatively high（Up to 180 DEG C）, using PT100 thermistors to oil temperature It measures, the variation of temperature brings the variation of PT100 resistance, to make the voltage value at PT100 thermistors both ends be become Change, digital signal is converted analog signals by AD7793 modulus conversion chips, main control module is sent to and is handled, temperature The end SLK, CS, DIN, DOUT of detection module is connected with P1.0, P1.1, P1.2, P1.3 pin of main control module respectively.

The output end of the oil detection module is connected with the input terminal of main control module, the SCLK_ of oily detection module A, the end SDATA_A, FSYNC_A, CS_A, CLK_A, DIO_A respectively with P3.2, P3.3 of main control module, P3.4, P1.6, P2.6, P2.7 pins are connected, and oily detection module uses the capacitance sensor of fringe field, and edible oil quality capacitance is converted into Voltage signal is acquired for main control module, and the capacitance sensor based on fringe field is equivalent to two parallel plate electrode capacitance sensor Block pole plate is placed on same plane, measured object（Edible oil）It only in the side of sensor probe, is seen by its electric force lines distribution, is a kind of Electric field leakage type sensor, electric force lines distribution are not parallel, and the electric field for penetrating measured object is also in uneven distribution, but and Parallel plate electrode capacitance sensor is the same, and when measured object dielectric constant changes, the electric field for penetrating measured object also changes, from And capacitance changes between pole plate.Main control module controls the AD9832 chips in oily detection module by P3.2, P3.3, P3.4 AC sine signal is generated to measured capacitance Cx（Capacitance value）Into row energization, exciting current flows through feedback resistance The detector of R4, feedback capacity C3 and amplifier OPA637 compositions is converted into alternating voltage, contains capacitance value information Alternating voltage sampled by sending modulus conversion chip ADC0832 chips to after AC-DC converter AD637 conversion, Signal after being sampled by ADC0832 chips sends master controller to and carries out processing analysis.

The input terminal of the display module is connected with the output end of main control module, and display module uses LCD12864 liquid crystal Display screen, display module is for showing the information detected, DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7 of display module End is connected with P0.0, P0.1, P0.2, P0.3, P0.4, P0.5, P0.6, P0.7 pin of main control module, is used for display data； The ends RS_LCD of display module are connected with the P2.0 pins of main control module, for controlling data command；The R/W_ of display module The ends LCD are connected with the P2.1 pins of main control module, for controlling read-write operation；The Enable Pin E_LCD of display module and master control The P2.2 feet of module are connected；P2.0, P2.1, P2.2 pin of main control module are used to control the choosing of the charactron in display module Logical state.

The input terminal of the acousto-optic indicating module is connected with the output end of main control module, and acousto-optic indicating module includes LED The driving current of indicator light and buzzer, LED light is small, therefore the I/O mouths of main control module can be used to be directly driven, The ends LED1 of acousto-optic indicating module are connected with the P1.5 pins of main control module, when the P1.5 pins of main control module export high level When, LED1 conductings shine；Since buzzer is direct voltage drive device, it is only necessary to supply upper specified voltage energy to buzzer Buzzer sounding is driven, the operating current of buzzer is bigger, therefore main control module is driven Current amplifier by NPN triode Dynamic buzzer sounding, the P1.4 pins of main control module are connected with the ends LS of acousto-optic indicating module, are connected to by a resistance R7 The base stage of NPN triode Q1, resistance R7 are current-limiting resistance, prevent three poles of the excessive damage of the base current for flowing through NPN triode Q1 Pipe, there are two effects by resistance R10, and first effect is the pull down resistor for the base stage that R10 is equivalent to NPN triode Q1, if LS Input terminal is hanging, then since the presence of R10 can make NPN triode Q1 be maintained at reliable off state, second effect is R10 can promote the threshold voltage of high level；C8 is power filtering capacitor, for filtering out power supply high frequency spurs；Capacitance C9 can be Have under strong interference environment, effective filtering interference signals, buzzer is avoided to change voice and unexpected sounding；The P1.4 pins of main control module When sending high level to the ends LS of acousto-optic indicating module, NPN triode Q1 conducting, buzzer carries out sounding reminding.

The intelligent terminal is connected by WIFI module with main control module, and WIFI module uses ESP8266 chips, ESP8266 chips have powerful chip processing and storage capacity, make it by GPIO mouthfuls of integrated sensors and other application Particular device, realize minimum occupying system resources in minimum early development and operation.ESP8266 height Embeddeds, Include duplexer, power management converter etc., therefore only need a small number of external circuits, so that it may to complete corresponding work( Energy.And have many advantages, such as that energy saving, fast wake-up, the processing function of front end signal, troubleshooting and radio system coexist.

WIFI module as the communication tie between portable edible oil detecting device and intelligent terminal, with main control module it Between use three line asynchronous serial communications, main control module receives the intelligent terminal order from WIFI module in serial communication, when After WIFI module receives the order from intelligent terminal, data are transmitted to main control module in a serial fashion, when main control module needs When will be to intelligent terminal transmission data, it is only necessary to data are passed out into WIFI module from serial port, WIFI module independently complete to The data of intelligent terminal are sent；The end TXD, RXD of WIFI module is connected with P3.1, P3.0 pin of main control module respectively.

Preferable scheme is that the edible oil detecting device further includes the charge management module being connected with power supply module, Be provided in the charge management module USB charging interface and USB electric discharge interface, the output end of the USB charging interface with fill The input terminal of electric management module is connected；The input terminal of the USB electric discharges interface is connected with the output end of charge management module.

Power supply module use+5V rechargeable lithium ion batteries, charge management module use HT4901 chips, the anode of battery The ends CHARGE of HT4901 chips are connected to, the cathode of battery is grounded by inductance LEEAD.HT4901 built-in chip type electricity is examined It surveys, battery power status is shown when charging, uses built-in MOSFET charging currents 500mA（Representative value）, support to fill 0V batteries Electricity, and by trickle precharge pattern, battery is preferably protected, boost output voltage is adjustable, is boosted and is exported using built-in MOSFET To peripheral hardware charging current up to 500mA, it is more than 2A to extend out MOSFET boosting outputs to the charging current of peripheral hardware, and fixed switch is frequently Rate 500KHZ；Booster circuit high efficiency is 90%；Stand-by power consumption can be controlled in 30uA hereinafter, built-in 50mA LED flashlights drive, and has There are over-charging of battery, Cross prevention, output to have the function of unloaded automatic identification shutdown, overcurrent protection, short-circuit protection, overheat protector. L1, L2, L3, L4 in charge management module circuit diagram are battery capacity indicator light.

The output end of the USB charging interface is connected with the input terminal of charge management module, USB charging interface USB_IN Connection external charger charges to the battery in power supply module, and when USB_IN accesses 5V power supplys, HT4901 chips enter Charged state, at this time boosting output are closed, and LED light L1, L2, L3, L4 state is gradually lighted with the raising of cell voltage, After charging, tetra- indicator lights of L1, L2, L3, L4 are all lighted.

The input terminal of the USB electric discharges interface is connected with the output end of charge management module, charge management module The ends LX of HT4901 chips are connected to the ends VCC of USB electric discharge interfaces by zener diode D1, and the ends D- of USB electric discharge interfaces connect It is connected to the connecting node of resistance R5 and resistance R6, the ends D+ of USB electric discharge interfaces are connected to the connecting node of resistance R3 and resistance R4, In system standby state, short-press button S3 once wakes up from standby mode, is detected to battery capacity；Electricity closes after showing several seconds It closes, while starting boosting output；Under-voltage or while entering current limliting/short-circuit protection closes boosting output in cell voltage, entrance is standby Pattern, long-press button S3 enter standby mode.

Preferable scheme is that it is STC Corporation's production that the main control module, which uses ST89C52 microcontrollers, the STC89C52, A kind of low-power consumption, 8 8-digit microcontroller of high-performance CMOS, have 8K byte systems may be programmed flash storage.STC89C52 Using classical MCS-51 kernels, but many improvement have been done so that chip has the function of that traditional 51 microcontrollers do not have. On single-chip, possess 8 dexterous bit CPUs and in-system programmable components Flash, there is following standard feature：8k bytes Flash, 512 Byte RAM, 32 I/O mouth lines, WatchDog Timer, built-in 4KB EEPROM, MAX810 reset circuits, 3 16 bit timing devices/ Counter, 4 external interrupts, one 7 vectorial 4 grades of interrupt structures（5 vectorial 2 grades of interrupt structures of compatible tradition 51）, full duplex Serial port.In addition STC89C52 can be down to the operation of 0Hz static logics, support 2 kinds of softwares that energy-saving mode may be selected.Idle mode Under, CPU is stopped, and RAM, timer/counter, serial ports, interruption is allowed to work on.Under power down protection mode, RAM contents It is saved, oscillator is frozen, all work of microcontroller stop, until next interruption or hardware reset.Highest operates Frequency 35MHz, 6T/12T is optional.

Preferable scheme is that the color detection module, using TCS230 color sensors, TCS230 color sensors are TAOS（Texas Advanced Optoelectronic Solutions）The programmable colourama that company releases turns to frequency The output end of parallel operation, the color detection module is connected with the input terminal of main control module, the output of TCS230 color sensors Digital quantity when signal can drive TTL or the CMOS logic input of standard, therefore can directly and main control module, due to output It is digital quantity, and the conversion accuracy that can realize each chrominance channel 10 or more, thus no longer needs A/D conversion circuits, Circuit is set to become simpler.When incident light projects on TCS230, pass through the difference of photodiode controlling switch S2, S3 Combination, can select different filters；The square wave of different frequency is exported after overcurrent to frequency converter（Duty ratio is 50%）, different colors and light intensity correspond to the square wave of different frequency；It can also be selected by output calibration control S0, S1 different Output-scale-factor is adjusted reference frequency output, to adapt to different demands；OUT, S2, S3 of color detection module End is connected with P2.5, P2.4, P2.3 pin of main control module respectively.

Preferable scheme is that the oil smoke detection module uses CS-MQR1003 sensors, CS-MQR1003 sensors to exist When start-up operation, needs to preheat 10min, can be worked normally after its stable conductivity gets off, standby voltage+5V, Ke Yizhi It connects and is preheated using system power supply, carried out by ADC0832 by the analog voltage signal that CS-MQR1003 sensors acquire A/D is converted, and the reading of transfer process and conversion value is controlled by main control module, when smoke point generates, variety classes edible oil Oil smoke concentration is slightly different, the end CLK_M, DIO_M, CS_M of oil smoke detection module respectively with P3.5, P3.6 of main control module, P3.7 pins are connected.

The operation principle of the utility model is：Power supply module uses rechargeable lithium ion batteries, is by USB charging interface Battery charges, and charged management module is monitored the state of charge of battery, is filled for intelligent terminal by USB electric discharge interfaces Electricity realizes that detection function, oil smoke detection module are used to acquire the oil smoke generated when oil heating by key-press module open system, And it oil smoke information is converted into digital electric signal sends main control module to and carry out processing analysis, the oil smoke concentration of different edible oils Then difference shows that oil smoke concentration information, temperature detecting module are used to acquire the oil of oil during heating by display module Temperature, is then converted to digital electric signal by oil temperature signal and sends main control module to and carry out processing analysis, then passes through display module Show that oil temperature information, oily detection module are used to edible oil quality capacitance being converted into voltage signal to acquire for main control module, Main control module judges the difference of the quality of edible oil according to the difference of obtained capacitance；By color detection module to edible oil Color be monitored, as people eyes observe edible oil variation, when reaching certain degree, at main control module Reason, sends a signal to designated person.Main control module believes the oil smoke concentration information detected, oil temperature information, oily capacitance Breath and colouring information are sent to intelligent terminal by WIFI module and are monitored, when oil smoke concentration information or oil temperature information or oil There is abnormal signal and exceed threshold range in capacitance or colouring information, then main control module driving acousto-optic indicating module carries out acousto-optic report It is alert to remind.

It is the preferred embodiment of the utility model above, does not impose any limitation on the present invention, Every foundation the technical essence of the utility model any simple modification, equivalent change and modification made to the above embodiment, Belong in the range of utility model technical solution.

Claims (7)

1. a kind of portable edible oil detecting device, which is characterized in that including main control module, power supply module, key-press module, oil smoke Detection module, temperature detecting module, oily detection module, color detection module, WIFI module, acousto-optic indicating module and display mould Block, the power supply module, key-press module, oil smoke detection module, temperature detecting module, oily detection module and color detection module Output end be connected respectively with the input terminal of main control module, the WIFI module and main control module are connected with each other, the WIFI Module is connected with each other with intelligent terminal, the output end input with acousto-optic indicating module and display module respectively of the main control module End is connected.

2. a kind of portable edible oil detecting device according to claim 1, which is characterized in that the edible oil detection dress It further includes the charge management module being connected with power supply module to set, be provided in the charge management module USB charging interface and USB electric discharge interfaces, the output end of the USB charging interface are connected with the input terminal of charge management module；The USB electric discharges connect The input terminal of mouth is connected with the output end of charge management module.

3. a kind of portable edible oil detecting device according to claim 1, which is characterized in that the main control module uses ST89C52 microcontrollers.

4. a kind of portable edible oil detecting device according to claim 1, which is characterized in that the color detection module Using TCS230 color sensors.

5. a kind of portable edible oil detecting device according to claim 1, which is characterized in that the oil smoke detection module Using CS-MQR1003 sensors.

6. a kind of portable edible oil detecting device according to claim 2, which is characterized in that the charge management module Using HT4901 chips.

7. a kind of portable edible oil detecting device according to claim 1, which is characterized in that the WIFI module uses ESP8266 chips.