Smoke pot installation detection circuit

Abstract

The utility model provides a smoke pot installation detection circuit. The smoke pot installation detection circuit comprises a first voltage dividing member, a second voltage dividing member, a first current limiting member, a second current limiting member, a first isolation member, a first integrated circuit, a second integrated circuit and a connector. The connector is used for being connected with a smoke pot electrode, and the first voltage dividing piece is connected with a GPIO2 pin of the second integrated circuit and used for the second integrated circuit to read the level change after the smoke pot is installed. And a pin 4 of the first integrated circuit is connected with a GPIO1 of the second integrated circuit to provide a control signal for controlling the on-off of the first integrated circuit. The first integrated circuit is a load switch and is used for controlling the on-off of the voltage of the smoke pot. The first voltage-dividing member and the second voltage-dividing member form a voltage-dividing network which is used for preventing the second integrated circuit from being damaged due to overvoltage and overcurrent. The first isolator is used for galvanic isolation to protect the second integrated circuit from damage. And the second current limiting piece is used for setting the limiting current of the load switch.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent terminal detection technical field especially, relates to a kind of smoke pot installation detection circuit. BACKGROUND

[0002] Smoke pot is widely used in real CS, simulation confrontation, real confrontation and other fields, mainly used for injury prompt in confrontation. In actual use process, smoke pot is not installed in place, intentionally cheating not to install and the like can seriously affect the real effect of confrontation, so a detection technology is needed to detect the installation condition of smoke pot. There is no relevant patent technology at present. SUMMARY

[0003] Therefore, the utility model aims at providing a kind of smoke pot installation detection circuit to solve the problem in the background art.

[0004] To achieve the above purpose, the utility model provides a kind of smoke pot installation detection circuit, it includes: first voltage divider, second voltage divider, first current-limiting piece, second current-limiting piece, first isolating piece, first integrated circuit U1, second integrated circuit U2 and connector J1;

[0005] The connector J1 is connected with smoke pot electrode, and the 1 pin of the connector J1 is connected with the negative electrode end of the first isolating piece after being connected with the first current-limiting piece;The first current-limiting piece is also connected with the 1 pin of the first integrated circuit U1;The positive electrode end of the first isolating piece is connected with the first voltage divider and the second voltage divider respectively;The first voltage divider and the GPIO2 pin of the integrated circuit U2 are connected;The second voltage divider is connected with positive power supply;The 2 pin of the connector J1 is connected with the 3 pin of the first integrated circuit U1 after being connected with the second current-limiting piece;The second current-limiting piece is grounded;The 2 pin of the connector J1 is also connected with the 2 pin of the first integrated circuit U1;The 4 pin of the integrated circuit U1 is connected with the resistance R5 and then grounded;The 4 pin of the integrated circuit U1 is also connected with the GPIO1 pin of the integrated circuit U2, and the 5 pin of the integrated circuit U1 is connected with positive power supply;The VCC pin of the integrated circuit U2 is connected with positive power supply;The GND pin of the integrated circuit U2 is grounded.

[0006] In one embodiment, the first voltage divider uses resistance R1, the second voltage divider uses resistance R2, the first current-limiting piece uses resistance R3, the second current-limiting piece uses resistance R4, and the first isolating piece uses diode D1.

[0007] It can be seen from the above that the cigarette emitting tank installation detection circuit provided by the utility model reduces the high voltage signal to the range acceptable by the second integrated circuit through the voltage division network composed of the first voltage divider and the second voltage divider, avoids overvoltage damage to the GPIO pin. The second current limiting component sets the current limiting threshold of the first integrated circuit, preventing circuit damage caused by short circuit or overload. The one-way conduction characteristic of the first isolation component blocks reverse current, protecting the second integrated circuit from reverse voltage or current impact. The first integrated circuit is directly controlled by GPIO1 of the second integrated circuit, realizing efficient on-off management of the cigarette emitting tank power supply. The low conduction resistance and fast response characteristics of the load switch can reduce power consumption and ensure the reliability of power control. The level change after voltage division of the first voltage divider is read through the GPIO2 pin of the second integrated circuit, and the installation state of the cigarette emitting tank is detected in real time. The automation level of the system is improved, facilitating rapid response and fault diagnosis. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0009] Figure 1 A cigarette emitting tank installation detection circuit schematic diagram is provided in the embodiments of the present utility model. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical scheme and advantages of the present utility model more clear and explicit, the present utility model will be further described in detail below in combination with specific embodiments and with reference to the drawings.

[0011] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should be understood as the usual meaning understood by those skilled in the art to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, which may change accordingly when the absolute position of the described object changes.

[0012] AsFigure 1 The utility model provides a kind of smoking canister installation detection circuit, comprising: first voltage divider, second voltage divider, first current-limiting piece, second current-limiting piece, first isolator, first integrated circuit U1, second integrated circuit U2 and connector J1.

[0013] Specifically, first voltage divider adopts resistance R1, second voltage divider adopts resistance R2, first current-limiting piece adopts resistance R3, second current-limiting piece adopts resistance R4, and first isolator adopts diode D1.First integrated circuit U1 is load switch, and integrated circuit U2 is MCU U2.

[0014] Connector J1 is connected with smoking canister electrode, and the 1 pin of connector J1 is connected with first current-limiting piece and then connected with the negative electrode end of first isolator, and first current-limiting piece is also connected with the 1 pin of first integrated circuit U1.Through first current-limiting piece, the current of smoking canister can be adjusted.

[0015] The positive electrode end of first isolator is connected with first voltage divider and second voltage divider respectively, and first voltage divider is connected with the GPIO2 pin of integrated circuit U2;Second voltage divider is connected with positive power supply.First isolator is used for current isolation, to protect second integrated circuit U2 from being damaged.First voltage divider and second voltage divider form voltage divider network, by adjusting the parameters of first voltage divider and second voltage divider forming voltage divider network, second integrated circuit U2 can be avoided from being damaged due to overvoltage and overcurrent.

[0016] The 2 pin of connector J1 is connected with second current-limiting piece and then connected with the 3 pin of first integrated circuit U1, and second current-limiting piece is grounded, and the 2 pin of connector J1 is also connected with the 2 pin of first integrated circuit U1.Through resistance second current-limiting piece, the maximum current value of smoking canister can be set to protect circuit.

[0017] The 4 pin of integrated circuit U1 is connected with resistance R5 and then grounded, and the 4 pin of integrated circuit U1 is also connected with the GPIO1 pin of integrated circuit U2, and the 5 pin of integrated circuit U1 is connected with positive power supply.Integrated circuit U1 is load switch, and controls the on-off of smoking canister voltage.

[0018] The VCC pin of integrated circuit U2 is connected with positive power supply;The GND pin of integrated circuit U2 is grounded.

[0019] The smoking canister is composed of an electronic ignition head and a smoking powder. When the smoking canister is not ignited, the two electrodes of the smoking canister are in a short-circuit state (on-resistance < 10Ω); when the smoking canister is ignited, the two electrodes of the smoking canister are in an open-circuit state (on-resistance > 10KΩ). When the connector J1 is not installed with the smoking canister, the 1 pin and the 2 pin of the connector J1 are in an open-circuit state, and the second integrated circuit U2 judges that the smoking canister is not installed at this time by detecting that the GPIO2 is high. When the connector J1 is installed with the smoking canister, the 1 pin and the 2 pin of the connector J1 are in a short-circuit state, and the second integrated circuit U2 judges that the smoking canister is installed at this time by detecting that the GPIO2 is low.

[0020] When it is necessary to control the ignition of the smoking canister, the second integrated circuit U2 controls the GPIO1 to output a high level, controls the first integrated circuit U1 to be turned on, and the smoking canister smokes by being powered on through the connector J1.

[0021] The smoking canister installation detection circuit provided by the utility model reduces the high voltage signal to the range acceptable by the second integrated circuit through the voltage division network composed of the first voltage division component and the second voltage division component, avoiding overvoltage damage to the GPIO pin. The second current limiting component sets the current limiting threshold of the first integrated circuit, preventing circuit damage caused by short circuit or overload. The one-way conduction characteristic of the first isolation component blocks reverse current, protecting the second integrated circuit from reverse voltage or current impact. The first integrated circuit is directly controlled by the GPIO1 of the second integrated circuit, realizing efficient on-off management of the power supply of the smoking canister. The low on-resistance and fast response characteristics of the load switch can reduce power consumption and ensure the reliability of power control. The level change after voltage division of the first voltage division component is read through the GPIO2 pin of the second integrated circuit, realizing real-time detection of the installation state of the smoking canister. The automation level of the system is improved, facilitating rapid response and fault diagnosis. The combination of the second current limiting component and the voltage division network ensures stable operation of the circuit under complex working conditions. The introduction of the load switch further isolates the high voltage part from the MCU control unit, reducing mutual interference. The load switch can completely cut off the power supply path of the smoking canister in the off state, avoiding standby leakage, thereby reducing the overall system power consumption.

[0022] Those skilled in the art will understand that the discussion of any of the above embodiments is merely exemplary and is not intended to suggest that the scope of the utility model (including claims) is limited to these examples; under the concept of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.

[0023] Embodiments of the present application are intended to encompass all such alternatives, modifications and variations falling within the broad scope of the appended claims. Accordingly, any omission, modification, substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A smoke generator installation detection circuit, characterized in that, include: The components include a first pressure divider, a second pressure divider, a first current limiter, a second current limiter, a first isolation component, a first integrated circuit U1, a second integrated circuit U2, and a connector J1. The connector J1 is connected to the electrode of the smoke generator. Pin 1 of the connector J1 is connected to the first current limiting component and then to the negative terminal of the first isolator. The first current limiting component is also connected to pin 1 of the first integrated circuit U1. The positive terminal of the first isolator is connected to the first voltage divider and the second voltage divider. The first voltage divider is connected to the GPIO2 pin of the integrated circuit U2. The second voltage divider is connected to the positive power supply. Pin 2 of the connector J1 is connected to the second current limiting component and then to pin 3 of the first integrated circuit U1. The second current limiting component is grounded. Pin 2 of the connector J1 is also connected to pin 2 of the first integrated circuit U1. Pin 4 of the integrated circuit U1 is connected to resistor R5 and then grounded. Pin 4 of the integrated circuit U1 is also connected to the GPIO1 pin of the integrated circuit U2. Pin 5 of the integrated circuit U1 is connected to the positive power supply. The VCC pin of the integrated circuit U2 is connected to the positive power supply. The GND pin of the integrated circuit U2 is grounded.

2. The smoke generator installation detection circuit according to claim 1, characterized in that, The first voltage divider is a resistor R1, the second voltage divider is a resistor R2, the first current limiting component is a resistor R3, the second current limiting component is a resistor R4, and the first isolation component is a diode D1.

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