Access identification circuit, method and device

Abstract

The invention belongs to the field of atomization devices, and relates to an access identification circuit, method and device, the access identification circuit comprises an atomization output module, a first access detection module and a second access detection module; the atomization output module is respectively connected with the first access detection module and the second access detection module, the atomization output module comprises a first output end, a second output end, a power supply positive electrode end, a first control unit and a second control unit, and the power supply positive electrode end is respectively connected with the first control unit and the second control unit. The first control unit is connected with the first output end, the second control unit is connected with the second output end, the first access detection module is connected with the first output end and used for carrying out first access detection, and the second access detection module is connected with the second output end and used for carrying out second access detection. According to the invention, accurate identification of the circuit access state can be effectively realized, the accuracy and effectiveness of identification are improved, and the cost is effectively saved at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of atomization devices, and in particular to an access identification circuit, method, and device. Background Art

[0002] In the field of atomizers, accurately identifying whether a cartridge is connected and the type of connection is crucial for proper device operation and energy conservation. Traditional methods for detecting and identifying a cartridge connection rely primarily on sampling the resistance of the heating wire to determine the cartridge's connection status.

[0003] Specifically, the existing technology usually connects a known sampling resistor in series in the heating wire circuit, and calculates the resistance value of the heating wire by measuring the voltage drop across the sampling resistor. According to the preset resistance threshold range, it is judged whether the cigarette cartridge is connected and whether it is a single-shot or double-shot cigarette cartridge. However, this method has many limitations. On the one hand, in order to achieve more accurate resistance value sampling, high-precision sampling resistors and high-resolution analog-to-digital converters are required, which undoubtedly increases the hardware cost. On the other hand, in actual applications, the sampling resistance value is easily interfered by various factors, such as changes in ambient temperature causing the resistance value of the heating wire to drift, electromagnetic interference in the circuit affecting the accuracy of the sampling signal, and the self-heating effect of the sampling circuit itself will also change the resistance value. These interference factors may cause errors in the cigarette cartridge access identification detection.

[0004] Inaccurate detection of cartridge insertion can lead to a series of problems. For example, if a cartridge is not correctly identified, the device may mistakenly activate the heating wire, wasting energy and potentially shortening the device's lifespan. Failure to accurately determine whether a cartridge is single or double can lead to improper heating power control, affecting the atomization effect and user experience, and even potentially damaging the atomization device or the cartridge itself due to overheating or insufficient power. Summary of the Invention

[0005] The purpose of this application is to propose an access identification circuit, device, computer equipment and storage medium to solve the problem of accurately identifying the circuit access status and effectively saving costs.

[0006] In order to solve the above technical problems, the embodiment of the present application provides an access identification circuit, which adopts the following technical solutions:

[0007] The access identification circuit includes:

[0008] Atomization output module, first access detection module, second access detection module;

[0009] The atomization output module is respectively connected to the first access detection module and the second access detection module. The atomization output module includes a first output end, a second output end, a positive power supply end, a first control unit, and a second control unit. The positive power supply end is respectively connected to the first control unit and the second control unit. The first control unit is connected to the first output end, and the second control unit is connected to the second output end. The first access detection module is connected to the first output end for performing a first access detection, and the second access detection module is connected to the second output end for performing a second access detection.

[0010] Furthermore, the first access detection module includes a first resistor, a second resistor, and a first detection terminal;

[0011] The first resistor and the second resistor are connected in series, the first output end is connected to the connection point between the first resistor and the second resistor, the first resistor is connected to the positive terminal of the power supply, and the second resistor is connected to the first detection end.

[0012] Furthermore, the second access detection module includes a third resistor, a fourth resistor, and a second detection terminal;

[0013] The third resistor and the fourth resistor are connected in series, the second output end is connected to the connection point between the third resistor and the fourth resistor, the third resistor is connected to the positive terminal of the power supply, and the fourth resistor is connected to the second detection end.

[0014] Furthermore, the first control unit includes a first control terminal, a first control resistor, a second control resistor, and a first control switch;

[0015] The first control terminal is connected to the first control resistor, the first control resistor and the second control resistor are connected in series, one end of the first control switch is connected to the connection point between the first control resistor and the second control resistor, and the other end is connected to the first output terminal.

[0016] Furthermore, the second control unit includes a second control terminal, a third control resistor, a fourth control resistor, and a second control switch;

[0017] The second control end is connected to the third control resistor, the third control resistor and the fourth control resistor are connected in series, one end of the second control switch is connected to the connection point between the third control resistor and the fourth control resistor, and the other end is connected to the second output end.

[0018] Furthermore, the first control switch is an N-type MOS transistor, the gate of the first control switch is connected to the first control end, the source of the first control switch is connected to the positive end of the power supply, and the drain of the first control switch is connected to the first output end.

[0019] Furthermore, the second control switch is an N-type MOS tube, the gate of the second control switch is connected to the second control end, the source of the second control switch is connected to the positive end of the power supply, and the drain of the second control switch is connected to the second output end.

[0020] In order to solve the above technical problems, the embodiment of the present application further provides an access identification method, which adopts the following technical solution:

[0021] Acquire first real-time level information of the first access detection module and second real-time level information of the second access detection module;

[0022] determining whether the first real-time level information and the second real-time level information are both low levels;

[0023] If both the first real-time level information and the second real-time level information are low levels, it is determined that the circuit access state is dual access, and a first control signal and a second control signal are generated to control the voltage outputs of the first heating wire connected to the first access detection module and the second heating wire connected to the second access detection module, so that the first heating wire and the second heating wire perform atomization operations according to the output voltages;

[0024] If both the first real-time level information and the second real-time level information are not low levels, further determining whether the first real-time level information is low level or the second real-time level information is low level;

[0025] If the first real-time level information is a low level, the circuit access state is determined to be single access, and a first control signal is generated to control the first heating wire connected to the first access detection module to perform an atomization operation according to the output voltage;

[0026] If the second real-time level information is a low level, the circuit access state is determined to be single access, and a second control signal is generated to control the second heating wire accessed by the second access detection module to perform atomization operation according to the output voltage.

[0027] Furthermore, the further determining whether the first real-time level information is a low level or the second real-time level information is a low level further includes:

[0028] If both the first real-time level information and the second real-time level information are not low levels, it is determined that the circuit connection state is not connected.

[0029] In order to solve the above technical problems, the embodiment of the present application further provides an atomizing device, which adopts the following technical solution:

[0030] The atomization device includes an access identification circuit and a housing. The access identification circuit is installed in the housing and is used to control the atomization output of the atomization device. The access identification circuit adopts any of the access identification circuits described above.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] The present application provides an access identification circuit including an atomization output module, a first access detection module, and a second access detection module, and connects the atomization output module to the first access detection module and the second access detection module, respectively. The atomization output module includes a first output terminal, a second output terminal, a positive power supply terminal, a first control unit, and a second control unit. The positive power supply terminal is connected to the first control unit and the second control unit, respectively. The first control unit is connected to the first output terminal, the second control unit is connected to the second output terminal, the first access detection module is connected to the first output terminal for performing a first access detection, and the second access detection module is connected to the second output terminal for performing a second access detection. This effectively achieves accurate identification of the circuit access status, improves the accuracy and effectiveness of identification, and effectively saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the solutions in this application, a brief introduction will be given below to the drawings required for use in the description of the embodiments of this application. Obviously, the drawings described below are some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 is a circuit diagram of an embodiment of an access identification circuit of the present application;

[0035] Figure 2 This is a flowchart of an embodiment of the access identification method of the present application.

[0036] Figure 1: Atomization output module 1, first connection detection module 2, second connection detection module 3, first output terminal F+A, second output terminal F+B, positive power supply terminal VBAT, first control unit 11, second control unit 12, first resistor R21, second resistor R22, first detection terminal CheckLoad_A, third resistor R23, fourth resistor R24, second detection terminal CheckLoad_B, first control terminal Vout_PWMA, first control resistor R1, second control resistor R2, first control switch Q1, second control terminal Vout_PWMB, third control resistor R3, fourth control resistor R4, second control switch Q2. DETAILED DESCRIPTION

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0038] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0040] refer to Figure 1 , the access identification circuit of this application includes:

[0041] Atomization output module 1, first access detection module 2, second access detection module 3;

[0042] The atomization output module 1 is respectively connected to the first access detection module 2 and the second access detection module 3. The atomization output module 1 includes a first output terminal F+A, a second output terminal F+B, a positive power terminal VBAT, a first control unit 11, and a second control unit 12. The positive power terminal VBAT is respectively connected to the first control unit 11 and the second control unit 12. The first control unit 11 is connected to the first output terminal F+A, and the second control unit 12 is connected to the second output terminal F+B. The first access detection module 2 is connected to the first output terminal F+A for performing a first access detection, and the second access detection module 3 is connected to the second output terminal F+B for performing a second access detection.

[0043] In this embodiment, the first access detection module 2 is used to perform a first access detection of the access identification circuit, wherein the first access detection module 2 corresponds to the access main path, specifically the cartridge main path, and the first access detection module 2 is used to detect the access status of the cartridge main path to achieve the first access detection. The second access detection module 3 is used to perform a second access detection of the access identification circuit, wherein the second access detection module 3 corresponds to the access auxiliary path, specifically the cartridge auxiliary path, and the second access detection module 3 is used to detect the access status of the cartridge auxiliary path to achieve the second access detection.

[0044] The first output terminal F+A and the second output terminal F+B correspond to the output terminals connected to the main road and the auxiliary road respectively. The positive terminal VBAT of the power supply is the positive output terminal of the power supply (battery), which is used to provide the power supply voltage for the entire circuit. For example, when the heating wire of the cigarette cartridge is connected to the circuit, the positive terminal VBAT of the power supply provides the working voltage for the heating wire so that it can generate heat. When both the main road and the auxiliary road are in the connected state (double access), the first control unit 11 and the second control unit 12 are turned on, and the current will flow from the positive terminal VBAT of the power supply through the first control unit 11 and the second control unit 12 to the first output terminal F+A and the second output terminal F+B, so that the heating wire (load) is energized and heated. When one of the main road and the auxiliary road is in the connected state (single access), the first control unit 11 or the second control unit 12 is turned on, and the current will flow from the positive terminal VBAT of the power supply through the first control unit 11 or the second control unit 12 to the first output terminal F+A or the second output terminal F+B, so that the corresponding heating wire (load) is energized and heated. In this embodiment, the above-mentioned heating wire includes a first heating wire and a second heating wire (not shown in the figure). The first heating wire and the second heating wire correspond to the above-mentioned access main path and access auxiliary path respectively, and are respectively controlled by the first control unit 11 and the second control unit 12 to perform power-on heating.

[0045] The present application sets up an access identification circuit including an atomization output module 1, a first access detection module 2, and a second access detection module 3, and connects the atomization output module 1 to the first access detection module 2 and the second access detection module 3, respectively. The atomization output module 1 includes a first output terminal F+A, a second output terminal F+B, a positive power supply terminal VBAT, a first control unit 11, and a second control unit 12. The positive power supply terminal VBAT is connected to the first control unit 11 and the second control unit 12, respectively. The first control unit 11 is connected to the first output terminal F+A, and the second control unit 12 is connected to the second output terminal F+B. The first access detection module 2 is connected to the first output terminal F+A for performing a first access detection, and the second access detection module 3 is connected to the second output terminal F+B for performing a second access detection. This effectively realizes accurate identification of the circuit access status, improves the accuracy and effectiveness of identification, and effectively saves costs.

[0046] In an optional embodiment of this embodiment, the first access detection module 2 includes a first resistor R21, a second resistor R22, and a first detection terminal CheckLoad_A;

[0047] The first resistor R21 and the second resistor R22 are connected in series, the first output terminal F+A is connected to the connection point between the first resistor R21 and the second resistor R22, the first resistor R21 is connected to the positive power supply terminal VBAT, and the second resistor R22 is connected to the first detection terminal CheckLoad_A.

[0048] In this embodiment, the first detection terminal CheckLoad_A is a detection point in the first access detection module 2, which can be specifically used to detect whether the main circuit of the cigarette cartridge is connected and the type of access (single or double). By detecting the voltage level of the first output terminal F+A, it can be determined whether the heating wire is connected, thereby inferring the access status of the cigarette cartridge. When the main circuit of the cigarette cartridge is connected to the cigarette cartridge, the low resistance of the cigarette cartridge heating wire (first heating wire) will cause the first detection terminal CheckLoad_A signal to become a low level; when the cigarette cartridge is not connected, it remains at a high level. The first resistor R21 and the second resistor R22 are voltage divider resistors of the first access detection module 2. In this embodiment, the first resistor R21 is 1MΩ and the second resistor R22 is 10kΩ, which can be adjusted accordingly according to actual conditions.

[0049] This embodiment provides a first access detection module 2 including a first resistor R21, a second resistor R22, and a first detection terminal CheckLoad_A, thereby effectively detecting the access status of the circuit to the main line and realizing real-time first access detection of the circuit.

[0050] In an optional embodiment of this embodiment, the second access detection module 3 includes a third resistor R23, a fourth resistor R24, and a second detection terminal CheckLoad_B;

[0051] The third resistor R23 and the fourth resistor R24 ​​are connected in series, the second output terminal F+B is connected to the connection point between the third resistor R23 and the fourth resistor R24, the third resistor R23 is connected to the positive power supply terminal VBAT, and the fourth resistor R24 ​​is connected to the second detection terminal CheckLoad_B.

[0052] In this embodiment, the second detection terminal CheckLoad_B is a detection point in the second access detection module 3, which can be specifically used to detect whether the auxiliary circuit of the cigarette cartridge is connected and the type of access (single or double). By detecting the voltage level of the second output terminal F+B, it can be determined whether the heating wire is connected, thereby inferring the access status of the cigarette cartridge. When the auxiliary circuit of the cigarette cartridge is connected to the cigarette cartridge, the low resistance of the cigarette cartridge heating wire (second heating wire) will cause the second detection terminal CheckLoad_B signal to become a low level; when the cigarette cartridge is not connected, it remains at a high level. The third resistor R23 and the fourth resistor R24 ​​are voltage divider resistors of the second access detection module 3. In this embodiment, the third resistor R23 is 1MΩ and the fourth resistor R24 ​​is 10kΩ, which can be adjusted accordingly according to actual conditions.

[0053] This embodiment provides a second access detection module 3 including a third resistor R23, a fourth resistor R24, and a second detection terminal CheckLoad_B, thereby effectively detecting the access status of the circuit to the auxiliary path and realizing real-time second access detection of the circuit.

[0054] In an optional embodiment of this embodiment, the first control unit 11 includes a first control terminal Vout_PWMA, a first control resistor R1, a second control resistor R2, and a first control switch Q1;

[0055] The first control terminal Vout_PWMA is connected to the first control resistor R1, the first control resistor R1 and the second control resistor R2 are connected in series, one end of the first control switch Q1 is connected to the connection point between the first control resistor R1 and the second control resistor R2, and the other end is connected to the first output terminal F+A.

[0056] In this embodiment, the first control terminal Vout_PWMA is a PWM (pulse width modulation) control signal output pin used to control the on / off state of the first control switch Q1. By changing the duty cycle of the PWM signal, the average output voltage of the first heating wire is adjusted, thereby controlling the heating value of the first heating wire. The first control resistor R1 and the second control resistor R2 are pull-up resistors of the first control unit 11, used to pull the gate voltage of the first control switch Q1 to the VBAT voltage. When there is no control signal (generated by the first control terminal Vout_PWMA) input or the control signal is at a low level, the gate voltage of the first control switch Q1 is ensured to be at a low level, thereby keeping the first control switch Q1 off and preventing false triggering.

[0057] Specifically, when the cigarette cartridge is not connected, since the first access detection module 2 is connected to the first output terminal F+A, the first heating wire on the cigarette cartridge is not connected and no conductive loop is formed, the control signal of the first control unit 11 will not be able to achieve effective voltage regulation through the heating wire. The first control unit 11 is in standby mode, and the control signal will not trigger the conduction of the first control switch Q1, and the heating wire does not work. When the cigarette cartridge is connected, the resistance of the first heating wire is less than 1MΩ. At the first output terminal F+A, the first heating wire and the first resistor R21 and the second resistor R22 form a voltage divider circuit. Since the resistance of the first heating wire is very small, the current mainly flows to the ground through the first heating wire, the voltage at the first output terminal F+A is pulled down, and the first detection terminal CheckLoad_A detects a low level.

[0058] This embodiment provides a first control unit 11 including a first control terminal Vout_PWMA, a first control resistor R1, a second control resistor R2, and a first control switch Q1, thereby effectively implementing corresponding control processing when the first connection detection module 2 detects connection and non-connection.

[0059] In an optional embodiment of this embodiment, the second control unit 12 includes a second control terminal Vout_PWMB, a third control resistor R3, a fourth control resistor R4, and a second control switch Q2;

[0060] The second control terminal Vout_PWMB is connected to the third control resistor R3, and the third control resistor R3 and the fourth control resistor R4 are connected in series. One end of the second control switch Q2 is connected to the connection point between the third control resistor R3 and the fourth control resistor R4, and the other end is connected to the second output terminal F+B.

[0061] In this embodiment, the second control terminal Vout_PWMB is a PWM (pulse width modulation) control signal output pin used to control the on / off state of the second control switch Q2. By changing the duty cycle of the PWM signal, the average output voltage of the second heating wire is adjusted, thereby controlling the heating value of the second heating wire. The third control resistor R3 and the fourth control resistor R4 are pull-up resistors of the second control unit 12, used to pull the gate voltage of the second control switch Q2 to the VBAT voltage. When there is no control signal (generated by the second control terminal Vout_PWMB) input or the control signal is low, the gate voltage of the second control switch Q2 is ensured to be low, thereby keeping the second control switch Q2 off to prevent false triggering.

[0062] Specifically, when the cigarette cartridge is not connected, since the second access detection module 3 is connected to the second output terminal F+B, the second heating wire on the cigarette cartridge is not connected and no conductive loop is formed, the control signal of the second control unit 12 will not be able to achieve effective voltage regulation through the heating wire. The second control unit 12 is in standby mode, and the control signal will not trigger the conduction of the second control switch Q2, and the heating wire does not work. When the cigarette cartridge is connected, the resistance of the second heating wire is less than 1MΩ. At the second output terminal F+B, the second heating wire and the third resistor R23 and the fourth resistor R24 ​​form a voltage divider circuit. Since the resistance of the second heating wire is very small, the current mainly flows to the ground through the second heating wire, the voltage at the second output terminal F+B is pulled down, and the second detection terminal CheckLoad_B detects a low level.

[0063] This embodiment provides a second control unit 12 including a second control terminal Vout_PWMB, a third control resistor R3, a fourth control resistor R4, and a second control switch Q2, thereby effectively implementing corresponding control processing when the second access detection module 3 detects access or non-access.

[0064] In an optional embodiment of this embodiment, the first control switch Q1 is an N-type MOS transistor, the gate of the first control switch Q1 is connected to the first control terminal Vout_PWMA, the source of the first control switch Q1 is connected to the positive power supply terminal VBAT, and the drain of the first control switch Q1 is connected to the first output terminal F+A.

[0065] In this embodiment, the first control switch Q1 is a key power switching device in the circuit, used to control the on / off state of the heating wire, thereby achieving voltage regulation control of the heating wire. The gate (G) of the first control switch Q1 is connected to the first control terminal Vout_PWMA, used to control the on / off state of the first control switch Q1. The source (S) of the first control switch Q1 is connected to the positive power supply terminal VBAT, serving as the current inlet. The drain (D) of the first control switch Q1 is connected to the heating wire output terminal of the first output terminal F+A, and forms a voltage divider branch with the first resistor R21 and the second resistor R22.

[0066] In this embodiment, an N-type MOS transistor is used as the first control switch Q1, and the gate, source, and drain of the first control switch Q1 are connected to the first control terminal Vout_PWMA, the positive power supply terminal VBAT, and the first output terminal F+A, respectively, thereby effectively implementing the circuit switch conduction control of the first access detection module 2 according to the control signal.

[0067] In an optional embodiment of this embodiment, the second control switch Q2 is an N-type MOS transistor, the gate of the second control switch Q2 is connected to the second control terminal Vout_PWMB, the source of the second control switch Q2 is connected to the positive power supply terminal VBAT, and the drain of the second control switch Q2 is connected to the second output terminal F+B.

[0068] In this embodiment, the second control switch Q2 is a key power switching device in the circuit, used to control the on / off state of the heating wire, thereby achieving voltage regulation control of the heating wire. The gate (G) of the second control switch Q2 is connected to the second control terminal Vout_PWMB, used to control the on / off state of the second control switch Q2. The source (S) of the second control switch Q2 is connected to the positive power supply terminal VBAT, serving as the current inlet. The drain (D) of the second control switch Q2 is connected to the heating wire output terminal of the second output terminal F+B, and forms a voltage divider branch with the third resistor R23 and the fourth resistor R24.

[0069] In this embodiment, an N-type MOS transistor is used as the second control switch Q2, and the gate, source, and drain of the second control switch Q2 are connected to the second control terminal Vout_PWMB, the positive power supply terminal VBAT, and the second output terminal F+B, respectively, thereby effectively implementing the circuit switch conduction control of the second access detection module 3 according to the control signal.

[0070] This application also provides an access identification method, further reference Figure 2 , shows a flow chart of an embodiment of an access identification method according to the present application. The access identification method comprises the following steps:

[0071] Step S10, obtaining first real-time level information of the first access detection module and second real-time level information of the second access detection module;

[0072] In this embodiment, by obtaining first and second real-time level information, which are respectively obtained from the first and second connection detection modules in the connection identification circuit, when the heating wire of the cigarette cartridge is connected to the corresponding output terminal, the level at the detection terminal will become low due to the load characteristics of the heating wire; when no heating wire is connected, the level at the detection terminal remains high.

[0073] Step S20, determining whether the first real-time level information and the second real-time level information are both low levels;

[0074] In this embodiment, by judging the status of the first real-time level information and the second real-time level information, the access status of the atomization device can be accurately identified. Specifically, the method first determines whether both level information are low. If so, it indicates that both heating wires are connected, and the circuit access status is determined to be dual access. In the dual access state, the circuit generates a first control signal and a second control signal. These two control signals control the first control unit and the second control unit respectively, so that the first output terminal and the second output terminal output voltage at the same time, thereby driving the two heating wires to perform atomization operations at the same time.

[0075] Step S30: If both the first real-time level information and the second real-time level information are low levels, determining that the circuit access state is dual access, and generating a first control signal and a second control signal to control the voltage outputs of the first heating wire connected to the first access detection module and the second heating wire connected to the second access detection module, so that the first heating wire and the second heating wire perform atomization operations according to the output voltages;

[0076] In this embodiment, when both the first real-time level information and the second real-time level information are low, it indicates that the first output terminal and the second output terminal are both connected to a load (i.e., the first heating wire and the second heating wire), and the circuit access state is determined to be dual access. In the dual access state, the system will simultaneously generate the first control signal and the second control signal to control the first heating wire and the second heating wire to operate simultaneously to perform atomization operation.

[0077] Step S40: If both the first real-time level information and the second real-time level information are not low levels, further determining whether the first real-time level information is low level or the second real-time level information is low level;

[0078] In this embodiment, when both the first real-time level information and the second real-time level information are not low levels, it is necessary to further determine which level information is not low level, and then perform corresponding output voltage control.

[0079] Step S50: If the first real-time level information is a low level, determining that the circuit access state is single access, and generating a first control signal to control the first heating wire connected to the first access detection module to perform an atomization operation according to the output voltage;

[0080] In this embodiment, if the first real-time level information is a low level and the second real-time level information is not a low level, it indicates that only the first output end is connected to the load (i.e., the first heating wire). At this time, the circuit access state is determined to be single access, and only the first control signal is generated to control the operation of the first heating wire.

[0081] Step S60: If the second real-time level information is a low level, the circuit connection state is determined to be single connection, and a second control signal is generated to control the second heating wire connected to the second connection detection module to perform atomization operation according to the output voltage.

[0082] In this embodiment, similarly, if the second real-time level information is a low level and the first real-time level information is not a low level, it indicates that only the second output terminal is connected to the load (i.e., the second heating wire). At this time, the circuit access state is also determined to be single access, but only the second control signal is generated to control the operation of the second heating wire. In a specific implementation, the first control signal and the second control signal can be the same, that is, both are PWM control signals, and the PWM duty cycle of the PWM control signal can be preset. Or the first control signal and the second control signal can be different, and can be adjusted according to the power of the heating wire connected to the specific cartridge.

[0083] This embodiment obtains first real-time level information and second real-time level information; determines whether the first real-time level information and the second real-time level information are both low; if the first real-time level information and the second real-time level information are both low, determines that the circuit access state is dual access, and generates a first control signal and a second control signal to control the voltage output of the first heating wire and the second heating wire, so that the first heating wire and the second heating wire perform atomization operation according to the output voltage; if neither the first real-time level information nor the second real-time level information is low, further determines whether the first real-time level information is low or the second real-time level information is low; if the first real-time level information is low, determines that the circuit access state is single access, and generates a first control signal to control the first heating wire to perform atomization operation according to the output voltage; if the second real-time level information is low, determines that the circuit access state is single access, and generates a second control signal to control the second heating wire to perform atomization operation according to the output voltage. In this way, the circuit access state is effectively detected and the corresponding atomization operation control is performed according to the access state.

[0084] In an optional embodiment of this embodiment, the further determining whether the first real-time level information is a low level or the second real-time level information is a low level further includes:

[0085] Step S70: If both the first real-time level information and the second real-time level information are not low levels, it is determined that the circuit connection state is not connected.

[0086] In this embodiment, if both the first real-time level information and the second real-time level information are not low levels, it indicates that neither the first output end nor the second output end is connected to a load (the cigarette cartridge heating wire). At this time, the circuit access state is determined to be not connected, the system will not generate any control signal, and the atomization device will not work. In this embodiment, the generation of the control signal can be achieved by a microcontroller (MCU) or other control chip. The control signal is usually a PWM (pulse width modulation) signal. By adjusting the duty cycle of the PWM signal, the heating power of the heating wire can be controlled, thereby controlling the atomization effect. For example, the frequency of the PWM signal can be set to 1kHz, and the duty cycle range can be 0% to 100%. The larger the duty cycle, the greater the heating power of the heating wire and the stronger the atomization effect.

[0087] In actual applications, different control strategies can be set according to different atomization requirements. For example, in dual-connection mode, the heating power of the first and second heating wires can be set to the same, or different heating powers can be set to meet different atomization requirements. Similarly, in single-connection mode, the heating power of the heating wire can also be adjusted according to actual needs.

[0088] This embodiment determines that the circuit access state is disconnected when both the first real-time level information and the second real-time level information are not low levels, thereby effectively distinguishing between the single access and disconnected states of the circuit, thereby improving the flexibility and reliability of circuit control.

[0089] An embodiment of the present application further provides an atomization device, comprising an access identification circuit and a housing. The access identification circuit is installed in the housing and is used to control the atomization output of the atomization device. The access identification circuit adopts any of the access identification circuits described above.

[0090] This embodiment uses an atomization device with an access identification circuit as described in any of the above items, which can effectively realize accurate identification of the circuit access status, improve the accuracy and effectiveness of the identification, and effectively save costs.

[0091] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. An access identification circuit, characterized in that: The access identification circuit includes: Atomization output module, first access detection module, second access detection module; The atomization output module is respectively connected to the first access detection module and the second access detection module. The atomization output module includes a first output end, a second output end, a positive power supply end, a first control unit, and a second control unit. The positive power supply end is respectively connected to the first control unit and the second control unit. The first control unit is connected to the first output end, and the second control unit is connected to the second output end. The first access detection module is connected to the first output end for performing a first access detection, and the second access detection module is connected to the second output end for performing a second access detection.

2. The access identification circuit according to claim 1, characterized in that: The first access detection module includes a first resistor, a second resistor, and a first detection terminal; The first resistor and the second resistor are connected in series, the first output end is connected to the connection point between the first resistor and the second resistor, the first resistor is connected to the positive terminal of the power supply, and the second resistor is connected to the first detection end.

3. The access identification circuit according to claim 1, characterized in that: The second access detection module includes a third resistor, a fourth resistor, and a second detection terminal; The third resistor and the fourth resistor are connected in series, the second output end is connected to the connection point between the third resistor and the fourth resistor, the third resistor is connected to the positive terminal of the power supply, and the fourth resistor is connected to the second detection end.

4. The access identification circuit according to claim 1, characterized in that: The first control unit includes a first control terminal, a first control resistor, a second control resistor, and a first control switch; The first control terminal is connected to the first control resistor, the first control resistor and the second control resistor are connected in series, one end of the first control switch is connected to the connection point between the first control resistor and the second control resistor, and the other end is connected to the first output terminal.

5. The access identification circuit according to claim 1, characterized in that: The second control unit includes a second control terminal, a third control resistor, a fourth control resistor, and a second control switch; The second control end is connected to the third control resistor, the third control resistor and the fourth control resistor are connected in series, one end of the second control switch is connected to the connection point between the third control resistor and the fourth control resistor, and the other end is connected to the second output end.

6. The access identification circuit according to claim 4, characterized in that: The first control switch is an N-type MOS transistor, the gate of the first control switch is connected to the first control end, the source of the first control switch is connected to the positive end of the power supply, and the drain of the first control switch is connected to the first output end.

7. The access identification circuit according to claim 5, characterized in that: The second control switch is an N-type MOS transistor, the gate of the second control switch is connected to the second control end, the source of the second control switch is connected to the positive end of the power supply, and the drain of the second control switch is connected to the second output end.

8. An access identification method, characterized in that: include: Acquire first real-time level information of the first access detection module and second real-time level information of the second access detection module; determining whether the first real-time level information and the second real-time level information are both low levels; If both the first real-time level information and the second real-time level information are low levels, it is determined that the circuit access state is dual access, and a first control signal and a second control signal are generated to control the voltage outputs of the first heating wire connected to the first access detection module and the second heating wire connected to the second access detection module, so that the first heating wire and the second heating wire perform atomization operations according to the output voltages; If both the first real-time level information and the second real-time level information are not low levels, further determining whether the first real-time level information is low level or the second real-time level information is low level; If the first real-time level information is a low level, the circuit access state is determined to be single access, and a first control signal is generated to control the first heating wire connected to the first access detection module to perform an atomization operation according to the output voltage; If the second real-time level information is a low level, the circuit access state is determined to be single access, and a second control signal is generated to control the second heating wire accessed by the second access detection module to perform atomization operation according to the output voltage.

9. The access identification method according to claim 8, characterized in that: The further determining whether the first real-time level information is a low level or the second real-time level information is a low level further includes: If both the first real-time level information and the second real-time level information are not low levels, it is determined that the circuit connection state is not connected.

10. An atomizing device, characterized in that: The atomization device includes an access identification circuit and a shell. The access identification circuit is installed in the shell and is used to control the atomization output of the atomization device. The access identification circuit adopts the access identification circuit according to any one of claims 1 to 7.

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