Anti-misoperation induction cooker and electric ceramic cooker identification method

Abstract

The invention discloses an identification method of an anti-misoperation induction cooker and an anti-misoperation electric ceramic cooker, and relates to the technical field of household appliances. The camera converts a received optical signal into an electric signal through a photoelectric effect, acquires an image according to a fixed frame rate, and identifies pixel change in a specified area; when the change exceeds a set threshold value, a signal is sent to a processor of the induction cooker or the electric ceramic cooker to indicate that an object moves at the moment; under the condition of normal illumination, the resistance value of a photoresistor of the light sensation identification circuit is reduced, and the voltage input into a processor in the induction cooker or the electric ceramic cooker is reduced, and under the condition of no illumination or dark light, the resistance value of the photoresistor is increased, and the voltage input into the processor in the induction cooker or the electric ceramic cooker is increased. An internal processor of the induction cooker or the electric ceramic cooker judges and recognizes the external environment illuminance according to the signal; the camera and the light sensation recognition circuit are additionally arranged on the induction cooker or the electric ceramic cooker, whether manual operation exists or not is judged from the environment and object characteristics, misoperation is avoided, and use safety is improved.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically relating to a method for identifying induction cookers and ceramic cookers to prevent accidental operation. Background Technology

[0002] Induction cookers work on the principle of magnetic field-induced eddy current heating. This means that an electric current passing through a coil generates a magnetic field. When the magnetic field lines pass through the bottom of an iron pot, they are cut, creating countless small eddy currents. These eddy currents cause the iron atoms in the pot to rotate at high speed, generating heat through collision and friction, directly heating the food inside. Ceramic cookers, on the other hand, convert electrical energy into heat energy using the heating effect of electric current. Their main structure consists of a heating plate, a microcrystalline plate, an electronic control system, a temperature control system, and the cooktop body. The heating plate of a ceramic cooker consists of an iron-chromium heating element and an insulating plate. Currently, most induction cookers and ceramic cookers on the market use touch-sensitive operation buttons. Since mice and cockroaches are common in kitchens, when they crawl onto the control panel, it can easily cause malfunctions and create a hazard. Summary of the Invention

[0003] To address the problems mentioned in the background section, the present invention aims to provide a method for identifying induction cookers and ceramic cookers to prevent accidental operation.

[0004] This invention discloses a method for identifying induction cookers and ceramic cookers to prevent accidental operation. The method includes a transparent window, a camera, a photoresistor, an operation control board, a main power board, a bottom shell, and a top cover. The bottom shell has a mounting groove at its front end, where the camera and photoresistor are fixedly connected. The operation control board and main power board are fixedly installed inside the bottom shell and connected to each other. The top cover is fixedly connected to the upper surface of the bottom shell, and a transparent window is fixedly installed at the outer end of the front of the top cover. The camera and photoresistor are both connected to the operation control board. First, the camera converts the received light signal into an electrical signal through the photoelectric effect. Images are acquired at a fixed frame rate. The image processor performs algorithmic comparison on consecutive frames to identify a designated area. The sensor detects pixel changes; when the change exceeds a set threshold, it sends a signal to the induction cooker or ceramic cooker processor, indicating that an object is moving. Under normal lighting conditions, the resistance of the photoresistor decreases, reducing the voltage input to the induction cooker or ceramic cooker processor. Under no lighting or dim lighting conditions, the resistance of the photoresistor increases, increasing the voltage input to the induction cooker or ceramic cooker processor. The processor uses this signal to determine the ambient light level. Only after the cooker processor receives both the object movement and normal lighting signals can the machine respond to button operations and start working. If either condition is not met, the induction cooker or ceramic cooker will not respond to button operations and will not heat up.

[0005] As a preferred embodiment: the operation control board includes an image signal analysis and processing module, an optical signal processing module, and operation buttons. The camera is connected to the image signal analysis and processing module, the photoresistor is connected to the optical signal processing module, the image signal analysis and processing module, the optical signal processing module, and the operation buttons are all connected to the operation control board, and the operation control board is connected to the processor of the furnace body.

[0006] As a preferred embodiment, the camera and the image signal analysis and processing module constitute an object movement sampling circuit.

[0007] As a preferred embodiment, the photoresistor and the optical signal processing module constitute a light-sensing recognition circuit.

[0008] As a preferred embodiment: the optical sensing recognition circuit includes a resistor and a photoresistor; one end of the resistor is connected to a power supply, the other end of the resistor is connected to one end of the photoresistor, and the other end of the photoresistor is grounded.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] I. This invention uses a camera to convert received light signals into electrical signals through the photoelectric effect, acquires images at a fixed frame rate, identifies pixel changes within a specified area, and sends a signal to the furnace body processor when the change exceeds a set threshold, indicating that an object is moving at that moment.

[0011] II. This invention identifies light intensity through a photoresistor. When there is normal illumination, the resistance of the photoresistor decreases, and the voltage input to the internal processor of the furnace decreases. When there is no light or the light is relatively dim, the resistance of the photoresistor increases, and the voltage input to the internal processor of the furnace increases. The internal processor of the furnace uses this signal to determine and identify the ambient light intensity. Attached Figure Description

[0012] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is the front view of the present invention;

[0015] Figure 3 This is a circuit block diagram of the present invention;

[0016] Figure 4 This is the circuit diagram of the present invention.

[0017] In the diagram: 1-Transparent window; 2-Camera; 3-Photoresistor; 4-Operation control board; 5-Main power board; 6-Bottom shell; 7-Top cover;

[0018] R1 - Resistor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes and to enable those skilled in the art to understand and read the invention, and are not intended to limit the conditions under which the invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the invention.

[0020] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0021] Specific implementation method one: Combining Figures 1 to 4The following technical solution is illustrated in this specific embodiment: It includes a transparent window 1, a camera 2, a photoresistor 3, an operation control board 4, a main power board 5, a bottom shell 6, and a top cover 7. The bottom shell 6 has a mounting groove at its front end, in which the camera 2 and the photoresistor 3 are fixedly connected. The camera 2 collects external image signals and compares and analyzes multiple frames of image signals within a certain time period to determine if any object is moving. The determination result is then sent to the operation control board 4. A top cover 6 is fixedly connected to the upper surface of the bottom shell 6. A transparent window 1 is fixedly installed on the outer end of the front of the top cover 6. A photoresistor 3 senses the illuminance outside the transparent window 1, analyzes and processes the illuminance to determine whether there is a normal light source in the current external environment of the machine, and sends the judgment result to the operation control board 4. The operation control board 4 and the main power board 5 are fixedly installed inside the bottom shell 6 and are connected to the operation control board 4. A top cover 7 is fixedly connected to the upper surface of the bottom shell 6. The camera 2 and the photoresistor 3 are both connected to the operation control board 4. The main power board 5 receives the instructions from the operation control board 4 and performs the corresponding functional actions. First, the camera converts the received light signal into an electrical signal through the photoelectric effect, capturing images at a fixed frame rate. The image processor compares consecutive frames using algorithms to identify pixel changes within a specified area. When the change exceeds a set threshold, a signal is sent to the induction cooker or ceramic cooker processor, indicating that an object is moving. The light-sensing circuit consists of resistor R1 and photoresistor 3. Under normal lighting conditions, the resistance of photoresistor 3 decreases, reducing the voltage input to the induction cooker or ceramic cooker processor. Under no lighting or dim lighting conditions, the resistance of photoresistor 3 increases, increasing the voltage input to the induction cooker or ceramic cooker processor. The induction cooker or ceramic cooker processor uses this signal to determine the ambient light level. Only after the processor receives both the signals of object movement and normal lighting can the machine respond to button operations and start working. If either condition (no normal lighting or object movement) is not met, the induction cooker or ceramic cooker will not respond to button operations and will not heat.

[0022] The working principle of this specific implementation is as follows: The object movement sampling circuit consists of a camera and an image signal processing unit. First, the camera converts the received light signal into an electrical signal through the photoelectric effect and acquires images at a fixed frame rate. The image processor performs algorithmic comparisons on consecutive frames to identify pixel changes within a specified area. When the change exceeds a set threshold, a signal is sent to the induction cooker or ceramic cooker processor, indicating that an object is moving. The light sensing circuit consists of a resistor R1 and a photoresistor 3. Under normal lighting conditions, the resistance of the photoresistor 3 decreases, and the voltage input to the induction cooker or ceramic cooker processor decreases. When there is no light or the light is dim, the resistance of the photoresistor 3 increases, and the voltage input to the induction cooker or ceramic cooker processor increases. The induction cooker or ceramic cooker processor uses this signal to determine the ambient light level. Only after the cooker processor simultaneously receives both the object movement and normal lighting signals can the machine respond to button operations and start working. If either condition (no normal lighting or object movement) is not met, the induction cooker or ceramic cooker will not respond to button operations and will not heat.

[0023] The specific implementation method is as follows:

[0024] 1. When the machine detects a button operation on the operation control panel 4, it first uses the photoresistor 3 to determine whether the signal transmitted by the light-sensing circuit indicates daytime or illumination (identifying whether it is daytime or the lights are on). If the environment indicates a normal light source, it suggests possible that someone is operating the system, and the operation control panel 4 unlocks the light source control. If there is no light source, it is assumed that no one is operating the system, and the button operation is considered a erroneous action. The operation control panel 4 then determines this as a erroneous action, and the machine does not respond to the button operation commands.

[0025] 2. With sufficient light, the induction cooker or ceramic cooker uses camera 2 to capture external image signals and compares and analyzes multiple frames of image signals over a certain period to determine if any object is moving. The result is then sent to the operation control panel 4. If the image indicates movement, it suggests possible human intervention, and the operation control panel 4 unlocks image control. If no movement is detected, it is considered an unauthorized operation, and the button presses are deemed erroneous. The operation control panel 4 determines this to be a erroneous action, and the machine does not respond to button press commands.

[0026] 3. After the above two conditions are met, the main power board 5 simultaneously unlocks the light source control and image control, and the operation control board 4 sends an operation command to the main power board 5. The main power board 5 performs the corresponding functional actions according to the command of the operation control board 4.

[0027] Specific Implementation Method Two: Combining Figures 1 to 4The illustration shows this specific embodiment, which is a further limitation of Specific Embodiment One. The operation control board 4 includes an image signal analysis and processing module, an optical signal processing module, and operation buttons. The camera 2 is connected to the image signal analysis and processing module, and the photoresistor 3 is connected to the optical signal processing module. The image signal analysis and processing module, the optical signal processing module, and the operation buttons are all connected to the operation control board. The operation control board is connected to the processor of the furnace body. The camera 2 and the image signal analysis and processing module constitute an object movement sampling circuit. The photoresistor 3 and the optical signal processing module constitute a light sensing recognition circuit. The light sensing recognition circuit consists of a resistor R1 and a photoresistor 3. One end of the resistor R1 is connected to the power supply, and the other end of the resistor R1 is connected to one end of the photoresistor 3. The other end of the photoresistor 3 is grounded.

[0028] In this specific embodiment, camera 2 acquires external image signals and compares and analyzes multiple frames of image signals within a certain time to determine whether there is object movement. The determination result is then sent to the operation control board 4. Photoresistor 3 senses the illuminance outside the transparent window 1 and analyzes the illuminance to determine whether there is a normal light source in the current external environment of the machine. The determination result is also sent to the operation control board 4.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for identifying induction cookers and ceramic cooktops to prevent accidental operation, characterized in that: The system includes a transparent window (1), a camera (2), a photoresistor (3), an operation control board (4), a main power board (5), a bottom shell (6), and a top cover (7). The bottom shell (6) has a mounting slot at its front end, where the camera (2) and the photoresistor (3) are fixedly connected. The transparent window (1) is fixedly installed at the outer end of the top cover (7) directly in front. The operation control board (4) and the main power board (5) are fixedly installed inside the bottom shell (6), and the main power board (5) is connected to the operation control board (4). The top cover (7) is fixedly connected to the upper surface of the bottom shell (6). The camera (2) and the photoresistor (3) are both connected to the operation control board (4). First, the camera (2) converts the received light signal into an electrical signal through the photoelectric effect, and then acquires images at a fixed frame rate. The image processor... The algorithm compares consecutive frames to identify pixel changes within a specified area. When the change exceeds a set threshold, a signal is sent to the induction cooker or ceramic cooker processor to indicate that an object is moving. Under normal lighting conditions, the resistance of the photoresistor (3) decreases, and the voltage input to the induction cooker or ceramic cooker processor decreases. Under no lighting conditions or dim lighting conditions, the resistance of the photoresistor (3) increases, and the voltage input to the induction cooker or ceramic cooker processor increases. The induction cooker or ceramic cooker processor uses this signal to determine the ambient light level. Only after the induction cooker or ceramic cooker processor receives both the object movement signal and the normal lighting signal can the machine respond to the button operation and start working. If any condition is not met, the induction cooker or ceramic cooker will not respond to the button operation and will not heat up.

2. The identification method for preventing accidental operation of induction cookers and ceramic cookers according to claim 1, characterized in that: The operation control board (4) includes an image signal analysis and processing module, an optical signal processing module, and operation buttons. The camera (2) is connected to the image signal analysis and processing module, and the photoresistor (3) is connected to the optical signal processing module. The image signal analysis and processing module, the optical signal processing module, and the operation buttons are all connected to the operation control board (4). The operation control board (4) is connected to the processor of the furnace body. The camera (2) and the image signal analysis and processing module constitute an object movement sampling circuit. The photoresistor (3) and the optical signal processing module constitute a light sensing recognition circuit.

3. The identification method for preventing accidental operation of induction cookers and ceramic cookers according to claim 2, characterized in that: The optical sensing recognition circuit includes a resistor (R1) and a photoresistor (3); one end of the resistor (R1) is connected to the power supply, the other end of the resistor (R1) is connected to one end of the photoresistor (3), and the other end of the photoresistor (3) is grounded.

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