CN110786753A - Temperature measuring system of fryer and working method - Google Patents
Temperature measuring system of fryer and working method Download PDFInfo
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- CN110786753A CN110786753A CN201911194676.8A CN201911194676A CN110786753A CN 110786753 A CN110786753 A CN 110786753A CN 201911194676 A CN201911194676 A CN 201911194676A CN 110786753 A CN110786753 A CN 110786753A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/12—Deep fat fryers, e.g. for frying fish or chips
- A47J37/1266—Control devices, e.g. to control temperature, level or quality of the frying liquid
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Abstract
The invention relates to the technical field of household appliances, in particular to a temperature measuring system of a fryer and a working method thereof, wherein the temperature measuring system of the fryer comprises: the device comprises a thermocouple, an amplifying circuit, a filter circuit, a first controller and a second controller; the output end of the thermocouple is connected with the input end of the amplifying circuit, the output end of the amplifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the first controller, and the output end of the first controller is connected with the input end of the second controller. The temperature measuring system and the temperature measuring method of the fryer can be used for accurately monitoring the temperature in real time.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a temperature measuring system of a fryer, a working method and a system.
Background
The deep-fried food is one of the traditional food in China, the prevalence of the deep-fried food enables the electric fryer to be widely used, and the common household electric fryer can fry various foods such as meat, vegetable fried dough twists, fruits and the like. The electric fryer in the market is generally multipurpose, not only can fry food, but also can be used for boiling things. The electric heating fryer is designed to absorb the advantages of similar products at home and abroad, has the characteristics of novel style, reasonable structure, convenient operation, high temperature rise speed and the like, and is special equipment for fast food restaurants. And is also the most ideal food processing equipment for the current production and sale. An electric fryer is a necessary kitchen ware in the modern life of people.
The most important thing of the fryer is temperature control when frying food, wherein, the temperature needs to be measured before the temperature is controlled, the circuits for measuring the temperature in the prior art are different, and how to measure the temperature more accurately is a problem that people are always studying.
In order to solve the above problems, the present invention provides a temperature measuring system for a fryer and a working method thereof.
Disclosure of Invention
The invention solves the technical problem of providing a temperature measuring system of a fryer. The temperature measuring system of the fryer can monitor the temperature of the fryer in real time.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a fryer temperature measurement system comprising:
the device comprises a thermocouple, an amplifying circuit, a filter circuit, a first controller and a second controller;
the output end of the thermocouple is connected with the input end of the amplifying circuit, the output end of the amplifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the first controller, and the output end of the first controller is connected with the input end of the second controller.
Preferably, the amplifying circuit includes: the circuit comprises a resistor R1, a resistor R2, a resistor R3, an amplifier U1, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4;
one end of the resistor R1 is connected with the anode of the thermocouple, the other end of the resistor R1 is respectively connected with the pin 2 of the amplifier U1, the pin 5 of the amplifier U1 and one end of the resistor R3, the pin 5 of the amplifier U1 is respectively connected with one end of the capacitor C1 and 5V input voltage, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with the pin 6 of the amplifier U1, the other end of the resistor R2 is connected with the pin 3 of the amplifier U1, the pin 3 of the amplifier U1 is connected with one end of the capacitor C2, the pin 8 of the amplifier U1 is connected with one end of the capacitor C3, the other end of the capacitor C2 is respectively connected with the pin 4 of the amplifier, the other end of the capacitor C3 and the pin 6 of the amplifier U1, the pin 6 of the amplifier U1 is connected with the input end of the filter circuit, one end of a pin 4 of the amplifier U1 is connected with one end of a capacitor C4 and grounded, and the other end of the capacitor C4 is grounded. Since the signal generated by the thermocouple is weak and needs to be amplified, the weak signal can be amplified by multiple times in the amplifying circuit.
Preferably, the amplifier adopts TLC2652 to amplify the microvolt signal. The amplifier can greatly reduce the error of gain and improve the precision of detection signals.
Further preferably, the filter circuit includes: a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and a resistor R8 amplifier U2;
one end of the capacitor C5 is connected with the pin 6 of the amplifier U1, one end of the resistor R4 and one end of the capacitor C6, the other end of the capacitor C5 is connected with the other end of the resistor R4, and is grounded, the resistor R5 is connected with one end of the resistor R6 and is grounded in an analog manner, the other end of the resistor R5 is connected with the anode of the amplifier U2 and one end of the resistor R7, the other end of the resistor R7 is connected with the output end of the amplifier, the other end of the resistor R6 is respectively connected with the negative electrode of the amplifier U2 and one end of the capacitor C7, the other end of the capacitor C7 is connected with the other end of the capacitor C6 and one end of the resistor R8, the other end of the resistor R8 is connected with the output end of the amplifier, the output end of the amplifier is connected with the capacitor C8, and the capacitor C8 is connected with the input end of the first controller. Because the tiny signal is amplified by multiple times, the noise carried by the tiny signal is also amplified, and the signal detection is inaccurate, the signal needs to be filtered at the moment.
Preferably, the second controller receives the calculation result of the temperature of the first controller, and the second controller controls the lower position.
A method of operating a fryer temperature measurement system, comprising:
acquiring a real-time temperature value of the fryer, converting the temperature value into an electric signal and transmitting the electric signal to a first controller;
the first controller obtains a set value of the second controller;
the first controller judges the relation between the real-time temperature value and a set value;
if the real-time temperature value is higher than the set value, a higher than instruction is sent out;
and if the real-time temperature value is lower than the set value, a lower instruction is sent out.
Preferably, the step of obtaining the real-time temperature value of the fryer, converting the temperature value into an electric signal and transmitting the electric signal to the first controller is to obtain a temperature signal through a thermocouple, convert the temperature signal into a weak electromotive force, and amplify the weak electromotive force through the amplifying circuit.
Preferably, after the electromotive force is amplified and passes through the filter circuit, the amplified noise is reduced, and the noise-reduced electromotive force is transmitted to the first controller.
Preferably, the temperature value is converted into an electric signal and transmitted to the first controller, the first controller monitors the temperature value, and when the monitored temperature floats, a timing signal is sent to the second controller.
Preferably, said command to raise or lower is received by the second controller.
Compared with the prior art, the invention has the beneficial effects that: according to the system and the method, the temperature is obtained in real time through the thermocouple, and in the obtaining process, the signal of the thermocouple is weak, and the signal is amplified and filtered, so that the temperature of the fryer is monitored in real time. In the monitoring process, the signal of the second controller is acquired, calculation is carried out in the first controller, if the signal is higher than the first controller, the first controller is reminded to cut off the power supply and cool down, if the signal is lower than the first controller, the first control module is reminded to heat up, and in the monitoring process, the temperature of the pot can be effectively monitored, so that the subsequent temperature control of the pot is facilitated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of a fryer temperature measurement system according to the present invention;
FIG. 2 is a circuit diagram of a fryer temperature measurement system according to the present invention;
FIG. 3 is a flow chart of the method of operation of the fryer temperature measurement system of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate only the basic flow diagram of the invention, and therefore they show only the flow associated with the invention.
As shown in fig. 1, a temperature measuring system for a fryer pot, comprising:
the device comprises a thermocouple 1, an amplifying circuit 2, a filter circuit 3, a first controller 4 and a second controller 5;
the output end of the thermocouple 1 is connected with the input end of the amplifying circuit 2, the output end of the amplifying circuit 2 is connected with the input end of the filter circuit 3, the output end of the filter circuit 3 is connected with the first controller 4, and the output end of the first controller 4 is connected with the input end of the second controller 5.
As shown in fig. 2, a circuit diagram of a temperature measuring system of a fryer:
the amplifying circuit comprises: the circuit comprises a resistor R1, a resistor R2, a resistor R3, an amplifier U1, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4;
one end of the resistor R1 is connected with the anode of the thermocouple, the other end of the resistor R1 is respectively connected with the pin 2 of the amplifier U1, the pin 5 of the amplifier U1 and one end of the resistor R3, the pin 5 of the amplifier U1 is respectively connected with one end of the capacitor C1 and 5V input voltage, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with the pin 6 of the amplifier U1, the other end of the resistor R2 is connected with the pin 3 of the amplifier U1, the pin 3 of the amplifier U1 is connected with one end of the capacitor C2, the pin 8 of the amplifier U1 is connected with one end of the capacitor C3, the other end of the capacitor C2 is respectively connected with the pin 4 of the amplifier, the other end of the capacitor C3 and the pin 6 of the amplifier U1, the pin 6 of the amplifier U1 is connected with the input end of the filter circuit, one end of a pin 4 of the amplifier U1 is connected with one end of a capacitor C4 and grounded, and the other end of the capacitor C4 is grounded.
The amplifier adopts TLC2652 to amplify microvolt level signals.
The filter circuit comprises: a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and a resistor R8 amplifier U2;
one end of the capacitor C5 is connected with the pin 6 of the amplifier U1, one end of the resistor R4 and one end of the capacitor C6, the other end of the capacitor C5 is connected with the other end of the resistor R4, and is grounded, the resistor R5 is connected with one end of the resistor R6 and is grounded in an analog manner, the other end of the resistor R5 is connected with the anode of the amplifier U2 and one end of the resistor R7, the other end of the resistor R7 is connected with the output end of the amplifier, the other end of the resistor R6 is respectively connected with the negative electrode of the amplifier U2 and one end of the capacitor C7, the other end of the capacitor C7 is connected with the other end of the capacitor C6 and one end of the resistor R8, the other end of the resistor R8 is connected with the output end of the amplifier, the output end of the amplifier is connected with the capacitor C8, and the capacitor C8 is connected with the input end of the first controller.
Preferably, the second controller receives the calculation result of the temperature of the first controller, and the second controller controls the lower position.
As shown in FIG. 3, the present invention provides a method for operating a temperature measurement system of a fryer, comprising:
s1, acquiring a real-time temperature value of a fryer, converting the temperature value into an electric signal and transmitting the electric signal to a first controller;
s2, the first controller obtains a set value of the second controller;
s3, the first controller judges the relation between the real-time temperature value and a set value;
s4, if the real-time temperature value is higher than a set value, sending a higher-than-command;
and S5, if the real-time temperature value is lower than the set value, sending a lower instruction.
Step S1: and acquiring a real-time temperature value of the fryer, converting the temperature value into an electric signal and transmitting the electric signal to the first controller. The thermocouple is a commonly used temperature measuring element, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and in the scheme, the thermocouple obtains a real-time temperature value of the fryer, converts the temperature into an electric signal and transmits the electric signal to the first controller.
Step S2: the first controller obtains a set value of the second controller, wherein the first controller is used for calculating a temperature value, the second controller is used for obtaining the set temperature value, transmitting the temperature value to the first controller and calculating the temperature in the first controller.
Step S3: the first controller judges the relation between the real-time temperature value and the set value
Step S4: if the real-time temperature value is higher than the set value, a higher instruction is sent out, the first controller judges that the temperature is higher than the set value, the higher instruction is sent out and transmitted to the second controller, and after the second controller obtains the higher instruction, the heating module is controlled to be closed, and the frying pan is cooled.
Step S5: if the real-time temperature value is lower than the set value, a lower instruction is sent out, the first controller judges that the temperature is lower than the set value, the lower quality is sent out and transmitted to the second controller, and after the ground controller obtains the lower instruction, the heating module is controlled to be started to heat the fryer.
The acquisition of the real-time temperature value of the fryer, the conversion of the temperature value into an electric signal and the transmission of the electric signal to the first controller are realized by acquiring a temperature signal through a thermocouple, converting the temperature signal into a weak electromotive force and amplifying the weak electromotive force through an amplifying circuit.
After the electromotive force is amplified and passes through the filter circuit, the amplified noise is reduced, and the noise-reduced electromotive force is transmitted to the first controller.
The temperature value is converted into an electric signal and transmitted to the first controller, the first controller monitors the temperature value, and when the monitored temperature floats, a timing signal is sent to the second controller.
The command to raise or lower is received by the second controller.
The working principle is as follows: according to the temperature measuring system and the working method of the fryer, firstly, temperature signals are collected through the thermocouple, the thermocouple can convert the temperature signals into electric signals for transmission, but the electric signals are weak, the amplifier adopts TLC2652 as the amplifier to amplify microvolt level signals, the amplifier can effectively amplify the weak signals, the noise is amplified in the amplifying process, and meanwhile, the filter circuit is designed to filter the noise. The temperature control system is characterized in that corresponding programs are arranged in the first controller and the second controller, the second controller acquires temperature information to be controlled and transmits the temperature information to the first controller, the first controller acquires the existing temperature and calculates the temperature to be raised or lowered, the first controller and the second controller are clearly separated in time, the first controller is used for calculating and monitoring the temperature, the second controller is used for controlling the lower position, and the running speed is high.
According to the system and the method, the temperature is obtained in real time through the thermocouple, and in the obtaining process, because the signal of the thermocouple is weak, the signal is amplified and filtered, the temperature of the fryer is monitored in real time. The signal that acquires the second controller calculates in first controller, if be higher than then remind first controller to cut off the power supply and cool down, if be less than then remind first control module to heat up, the process of such monitoring can effectually monitor the temperature of pot, does benefit to subsequent temperature to the pot and controls.
The above detailed description is specific to possible embodiments of the present invention, and the above embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included in the present claims.
Claims (10)
1. A temperature measurement system for a fryer, comprising:
the device comprises a thermocouple, an amplifying circuit, a filter circuit, a first controller and a second controller;
the output end of the thermocouple is connected with the input end of the amplifying circuit, the output end of the amplifying circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the first controller, and the output end of the first controller is connected with the input end of the second controller.
2. The fryer pot temperature measurement system of claim 1, wherein said amplification circuit comprises: the circuit comprises a resistor R1, a resistor R2, a resistor R3, an amplifier U1, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4;
one end of the resistor R1 is connected with the anode of the thermocouple, the other end of the resistor R1 is respectively connected with the pin 2 of the amplifier U1, the pin 5 of the amplifier U1 and one end of the resistor R3, the pin 5 of the amplifier U1 is respectively connected with one end of the capacitor C1 and 5V input voltage, the other end of the capacitor C1 is grounded, the other end of the resistor R3 is connected with the pin 6 of the amplifier U1, the other end of the resistor R2 is connected with the pin 3 of the amplifier U1, the pin 3 of the amplifier U1 is connected with one end of the capacitor C2, the pin 8 of the amplifier U1 is connected with one end of the capacitor C3, the other end of the capacitor C2 is respectively connected with the pin 4 of the amplifier, the other end of the capacitor C3 and the pin 6 of the amplifier U1, the pin 6 of the amplifier U1 is connected with the input end of the filter circuit, one end of a pin 4 of the amplifier U1 is connected with one end of a capacitor C4 and grounded, and the other end of the capacitor C4 is grounded.
3. The fryer pot temperature measurement system of claim 2, wherein said amplifier employs TLC2652 to amplify weak signals.
4. The fryer pot temperature measurement system of claim 2, wherein said filter circuit comprises: a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and a resistor R8 amplifier U2;
one end of the capacitor C5 is connected with the pin 6 of the amplifier U1, one end of the resistor R4 and one end of the capacitor C6, the other end of the capacitor C5 is connected with the other end of the resistor R4, and is grounded, the resistor R5 is connected with one end of the resistor R6 and is grounded in an analog manner, the other end of the resistor R5 is connected with the anode of the amplifier U2 and one end of the resistor R7, the other end of the resistor R7 is connected with the output end of the amplifier, the other end of the resistor R6 is respectively connected with the negative electrode of the amplifier U2 and one end of the capacitor C7, the other end of the capacitor C7 is connected with the other end of the capacitor C6 and one end of the resistor R8, the other end of the resistor R8 is connected with the output end of the amplifier, the output end of the amplifier is connected with the capacitor C8, and the capacitor C8 is connected with the input end of the first controller.
5. The system of claim 1, wherein the second controller receives the temperature calculation of the first controller, and the second controller controls the lower level.
6. A method of operating a fryer temperature measurement system, comprising:
the thermocouple acquires the real-time temperature of the fryer, converts a temperature signal into an electric signal and transmits the electric signal to the amplifying circuit;
the amplifying circuit amplifies the electric signal and transmits the amplified signal to the filtering circuit;
after the filtering circuit filters the noise, the filtered signal is transmitted to the first controller;
and after receiving the signal, the first controller calculates and transmits a calculation result to the second controller.
7. The fryer pot temperature measurement system and method of operation of claim 6, wherein said first controller receives signals comprising: real-time temperature signals and temperature adjusting signals, the temperature adjusting signals.
8. The fryer pot temperature measurement system and operating method according to claim 7, wherein if the EMF is amplified, the amplified noise is reduced after passing through the filter circuit, and the noise-reduced EMF is transmitted to the first controller.
9. The system and method of claim 6, wherein the temperature value is converted to an electrical signal and transmitted to the first controller, the first controller monitors the temperature value, and sends a timing signal to the second controller when the monitored temperature fluctuates.
10. The fryer pot temperature measurement system and method of operation of claim 1, wherein said command to raise or lower is received by a second controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911194676.8A CN110786753A (en) | 2019-11-28 | 2019-11-28 | Temperature measuring system of fryer and working method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911194676.8A CN110786753A (en) | 2019-11-28 | 2019-11-28 | Temperature measuring system of fryer and working method |
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| CN201911194676.8A Pending CN110786753A (en) | 2019-11-28 | 2019-11-28 | Temperature measuring system of fryer and working method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600027Y (en) * | 2003-01-24 | 2004-01-21 | 百灵达实业（深圳）有限公司 | Microelectronic controlled deep fryer |
| KR20130049282A (en) * | 2011-11-04 | 2013-05-14 | 김정일 | Fryer for the family whom a frying pan function was imposed |
| CN105867468A (en) * | 2016-04-13 | 2016-08-17 | 成都聚汇才科技有限公司 | Intelligent temperature control system |
| CN109512289A (en) * | 2018-11-24 | 2019-03-26 | 芜湖真玛信息科技有限公司 | A kind of electric heating baker for cakes |
| CN211911398U (en) * | 2019-11-28 | 2020-11-13 | 广东豹鼎厨具设备有限公司 | Temperature measurement system of frying pan |
-
2019
- 2019-11-28 CN CN201911194676.8A patent/CN110786753A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600027Y (en) * | 2003-01-24 | 2004-01-21 | 百灵达实业（深圳）有限公司 | Microelectronic controlled deep fryer |
| KR20130049282A (en) * | 2011-11-04 | 2013-05-14 | 김정일 | Fryer for the family whom a frying pan function was imposed |
| CN105867468A (en) * | 2016-04-13 | 2016-08-17 | 成都聚汇才科技有限公司 | Intelligent temperature control system |
| CN109512289A (en) * | 2018-11-24 | 2019-03-26 | 芜湖真玛信息科技有限公司 | A kind of electric heating baker for cakes |
| CN211911398U (en) * | 2019-11-28 | 2020-11-13 | 广东豹鼎厨具设备有限公司 | Temperature measurement system of frying pan |
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