Startup and shutdown control circuit and intelligent glasses

Abstract

The utility model discloses a startup and shutdown control circuit and intelligent glasses, the startup and shutdown control circuit comprises a toggle switch, a startup trigger module and a controller, a first signal output end of the toggle switch outputs a first level signal when the toggle switch is in a startup position, and outputs a second level signal when the toggle switch is in a shutdown position; a second signal output end of the toggle switch outputs a second level signal when the toggle switch is in a power-on position, and outputs a first level signal when the toggle switch is in a power-off position; the startup trigger module outputs a first trigger signal according to the first level signal, and outputs a second trigger signal after a preset time of outputting the first trigger signal; and the controller executes a power-on action when detecting that the output end of the power-on trigger module outputs the first trigger signal and the second trigger signal in sequence, and executes a power-off action when detecting that the second signal output end outputs the first level signal. According to the invention, the problems of inconvenient startup and shutdown operation and easy false triggering of the intelligent glasses at present can be relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, in particular to a switching control circuit and smart glasses. BACKGROUND

[0002] Smart glasses are electronic devices that can be worn on the human eye, including but not limited to AI glasses, photo glasses, XR glasses, audio glasses, Bluetooth glasses, etc. that are commonly seen on the market.

[0003] At present, the switching operation of smart glasses is usually realized by using a key. The implementation logic of the key is that when the key is pressed for about 2 seconds, the switching operation can be realized, and after pressing the key for N seconds, the shutdown operation can be realized. This switching control requires additional pressing in actual operation, which is inconvenient to operate and easy to trigger by mistake when starting up.

[0004] Therefore, the current technology needs to be improved and improved. CONTENT OF THE INVENTION

[0005] The present application provides a switching control circuit and smart glasses, which can alleviate the problems of inconvenient operation and easy triggering by mistake of the current smart glasses.

[0006] The present application provides a switching control circuit, which comprises:

[0007] The toggle switch has a first signal output end for outputting a first level signal when the toggle switch is in the startup position, and a second level signal when the toggle switch is in the shutdown position; and a second signal output end for outputting a second level signal when the toggle switch is in the startup position, and a first level signal when the toggle switch is in the shutdown position;

[0008] The startup trigger module has an input end connected to the first signal output end. The startup trigger module is configured to output a first trigger signal according to the first level signal, and output a second trigger signal after a preset time of outputting the first trigger signal.

[0009] The controller is connected to the second signal output end and the output end of the startup trigger module. The controller is configured to perform a startup operation when the output end of the startup trigger module outputs the first trigger signal and the second trigger signal in sequence, and perform a shutdown operation when the second signal output end outputs the first level signal.

[0010] In some embodiments, the switching control circuit comprises:

[0011] The switch terminal comprises a first end, a second end and a third end, the second end is grounded; when the switch terminal is in the power-on position, the second end and the third end are short-circuited, and when the switch terminal is in the power-off position, the first end and the second end are short-circuited;

[0012] The first output unit is connected with the first end and is used for outputting a first level signal when the switch terminal is in the power-on position and outputting a second level signal when the switch terminal is in the power-off position.

[0013] The second output unit is connected with the second end and is used for outputting the second level signal when the switch terminal is in the power-on position and outputting the first level signal when the switch terminal is in the power-off position.

[0014] The switch-on control circuit in some embodiments comprises:

[0015] The trigger unit is connected with the first output unit and the controller, and is used for outputting a first trigger signal according to the first level signal.

[0016] The delay unit is connected with the first output unit and the trigger unit, and is used for charging according to the first level signal and outputting a switching signal after charging for a preset time, so that the trigger unit outputs a second trigger signal.

[0017] The first output unit comprises a first resistor and a second resistor, one end of the first resistor is connected with the first end, the other end of the first resistor is connected with the first signal output end and one end of the second resistor, and the other end of the second resistor is grounded.

[0018] The second output unit comprises a third resistor, one end of the third resistor is connected with the second end, the second end is also connected with the second signal output end, and the other end of the third resistor is grounded.

[0019] The trigger unit comprises a fourth resistor, a fifth resistor, a first switch tube and a first capacitor, one end of the fourth resistor is connected with the first signal output end, the other end of the fourth resistor is connected with a first end of the first switch tube, a second end of the first switch tube is grounded, a third end of the second switch tube and one end of the fifth resistor are both connected with an output end of the power-on trigger module, one end of the first capacitor is connected with the output end of the power-on trigger module, the other end of the first capacitor is grounded, and the other end of the fifth resistor is grounded.

[0020] The switch control circuit in some embodiments, the delay unit comprises a sixth resistor, a second capacitor and a second switch tube, one end of the sixth resistor is connected with the first signal output end, the other end of the sixth resistor and the second capacitor are connected with the first end of the second switch tube, the second end of the second switch tube is grounded, and the third end of the second switch tube is connected with the first end of the first switch tube.

[0021] The switch control circuit in some embodiments, the first switch tube comprises a first triode, the first end of the first switch tube is the base of the first triode, the second end of the first switch tube is the emitter of the first triode, and the third end of the first switch tube is the collector of the first triode.

[0022] The switch control circuit in some embodiments, the second switch tube comprises a second triode, the first end of the second switch tube is the base of the second triode, the second end of the second switch tube is the emitter of the second triode, and the third end of the second switch tube is the collector of the second triode.

[0023] The embodiment of the present application further provides a smart glasses, the smart glasses comprising the switch control circuit.

[0024] The switch control circuit and the smart glasses provided by the present application, the switch control circuit is switched by setting the toggle switch and the corresponding circuit structure, the corresponding signal is outputted by switching the on-off position of the toggle switch, so as to achieve the purpose of switch control of the smart glasses, and in this process, long time pressing operation is not needed, and the false triggering caused by short time touching can also be avoided, so that the switch operation of the smart glasses is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0025] The technical scheme and other beneficial effects of the present application will be apparent through the following detailed description of the specific embodiments of the present application combined with the drawings.

[0026] Figure 1 The structural block diagram of the switch control circuit provided by the embodiment of the present application.

[0027] Figure 2 The circuit diagram of the toggle switch in the switch control circuit provided by the embodiment of the present application.

[0028] Figure 3 The circuit diagram of the on trigger module in the switch control circuit provided by the embodiment of the present application. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the scope of protection of the present application.

[0030] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, so that the features with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise explicitly and specifically limited.

[0031] The smart glasses include but are not limited to the AI glasses, the photograph glasses, the XR glasses, the audio glasses, the Bluetooth glasses and the like commonly seen on the market at present. The smart glasses have the characteristics of simple use and small size. The smart glasses integrate the main control chip, the communication module, the display module, the camera and the integrated circuit on the glasses, so that the smart glasses can work independently. The current on-off action of the smart glasses is usually realized by using the key. The implementation logic of the key is that when the key is pressed for about 2 seconds, the on-off action can be realized, and after pressing the key for N seconds, the power-off action can be realized. This on-off control needs long time pressing for power-off, and the operation is inconvenient; and when the smart glasses are turned on, the pressing time is short, and the mis-touching situation is prone to occur, which causes the mis-triggering of the power-on.

[0032] Please refer to Figure 1 The embodiment provides an on-off control circuit applied to smart glasses to alleviate the inconvenience of the current on-off operation of the smart glasses and the problem of easy mis-triggering. Specifically, the on-off control circuit includes a toggle switch 100, a power-on trigger module 200 and a controller 300. The controller 300 can be a main control chip of the smart glasses.

[0033] The first signal output end of the toggle switch 100 is connected with the input end of the start trigger module 200, the second signal output end of the toggle switch 100 is connected with the controller 300, and the output end of the start trigger module 200 is connected with the controller 300. The first signal output end of the toggle switch 100 is used for outputting a first level signal when the toggle switch is in a start position and outputting a second level signal when the toggle switch 100 is in a shutdown position; the second signal output end of the toggle switch 100 is used for outputting the second level signal when the toggle switch 100 is in the start position and outputting the first level signal when the toggle switch 100 is in the shutdown position. The start trigger module 200 is used for outputting a first trigger signal according to the first level signal output by the first signal output end and outputting a second trigger signal after a preset time of outputting the first trigger signal.

[0034] Then, the controller 300 side detects that the start trigger module 200 outputs the first trigger signal and the second trigger signal in sequence, which indicates that the toggle switch 100 is detected to be toggled to the start position, and then the controller 300 performs a corresponding start action to make the smart glasses enter a start state. When the controller 300 side detects that the second signal output end outputs the first level signal, it indicates that the toggle switch 100 is detected to be in the shutdown position at this time, and then the controller 300 performs a corresponding shutdown action to make the smart glasses enter a shutdown state.

[0035] In the present application, by setting the toggle switch 100 and the corresponding circuit structure, the corresponding signals are output by switching the start and shutdown positions of the toggle switch 100, so as to achieve the purpose of start and shutdown control of the smart glasses. In this process, long pressing operation is not required, and false triggering of the start caused by short time touch can also be avoided, thereby simplifying the start and shutdown operation of the smart glasses.

[0036] Please refer to Figure 2 In some embodiments, the toggle switch 100 includes a switch terminal J1, a first output unit 110 and a second output unit 120. The switch terminal J1 includes a first end such as a first pin, a second end such as a C pin and a third end such as a second pin, and the second end is grounded. When the switch terminal J1 is in a start position, the second end and the third end are short-circuited, and when the switch terminal J1 is in a shutdown position, the first end and the second end are short-circuited. The first output unit 110 is connected with the first end and is used for outputting a first level signal when the switch terminal J1 is in the start position and outputting a second level signal when the switch terminal J1 is in the shutdown position. The second output unit 120 is connected with the second end and is used for outputting the second level signal when the switch terminal J1 is in the start position and outputting the first level signal when the switch terminal J1 is in the shutdown position.

[0037] When the toggle switch 100 is switched to the power-on position, the second end and the third end are short-circuited, i.e., the 2 pin and the C pin are short-circuited, the first output unit 110 outputs the first level signal, i.e., the EINT_POWER_OFF signal end is the first level signal, and the second output unit 120 outputs the second level signal, i.e., the EINT_SOC is the second level signal. When the toggle switch 100 is switched to the power-off position, the first end and the second end are short-circuited, i.e., the 1 pin and the C pin are short-circuited, the second output unit 120 outputs the first level signal, i.e., the EINT_SOC is the first level signal, and the first output unit 110 outputs the second level signal, i.e., the EINT_POWER_OFF signal end is the second level signal, so as to trigger the subsequent power-on and power-off actions.

[0038] Please refer to Figure 3 In some embodiments, the power-on trigger module 200 includes a trigger unit 210 and a delay unit 220, the trigger unit 210 is connected with the first output unit 110 and the controller 300, and the delay unit 220 is connected with the first output unit 110 and the trigger unit 210. The trigger unit 210 is configured to output a first trigger signal according to the first level signal; and the delay unit 220 is configured to charge according to the first level signal and output a switching signal after charging for a preset time, so that the trigger unit 210 outputs a second trigger signal.

[0039] In the default state of the power-on and power-off control circuit, i.e., the toggle switch 100 is in the power-off position, the trigger unit 210 outputs the second trigger signal by default, i.e., the PON signal end is the second trigger signal. When the toggle switch 100 is switched to the power-on position, the trigger unit 210 outputs the first trigger signal, i.e., the PON signal end is the first trigger signal. At the same time, the delay unit 220 charges according to the first level signal, and outputs the switching signal after charging for the preset time, so that the trigger unit 210 is disconnected, and the PON signal end is switched from the first trigger signal to the second trigger signal. When the controller 300 detects the first trigger signal and the second trigger signal output in sequence, it indicates that the toggle switch 100 is switched to the power-on position at this time. In this process, the power-on signal can be obtained without pressing operation, and the power-on operation process is simplified.

[0040] Please refer to Figure 2 As an embodiment, the first output unit 110 includes a first resistor R1 and a second resistor R2, one end of the first resistor R1 is connected with the first end, the other end of the first resistor R1 is connected with the first signal output end and one end of the second resistor R2, and the other end of the second resistor R2 is connected with the ground. The second output unit 120 includes a third resistor R3, one end of the third resistor R3 is connected with the second end, the second end is also connected with the second signal output end, and the other end of the third resistor R3 is connected with the ground.

[0041] When the switch terminal J1 is pushed to the power-on position, the second and third terminals are short-circuited, and then the second signal output terminal is connected to the ground terminal to be a low level, that is, the second level signal is a low level signal; the first signal output terminal is pulled up to a high level through the second resistor R2, that is, the first level signal is a high level, and the first signal output terminal outputs a high level signal, so that the subsequent controller 300 performs a power-on action. When the switch terminal J1 is pushed to the power-off position, the first and second terminals are short-circuited, and at this time the first signal output terminal is connected to the ground terminal to be a low level, that is, the first signal output terminal outputs a low level signal, and the second signal output terminal is pulled up to a high level by the third resistor R3, that is, the second signal output terminal outputs a high level signal, so that the controller 300 performs a power-off action according to the high level signal output by the second signal output terminal.

[0042] Please continue to refer to Figure 3 As an embodiment, the trigger unit 210 includes a fourth resistor R4, a fifth resistor R5, a first switch tube Q1 and a first capacitor C1, one end of the fourth resistor R4 is connected with the first signal output terminal, the other end of the fourth resistor R4 is connected with the first end of the first switch tube Q1, the second end of the first switch tube Q1 is grounded, the third end of the second switch tube Q2 and one end of the fifth resistor R5 are connected with the output terminal of the power-on trigger module 200, one end of the first capacitor C1 is connected with the output terminal of the power-on trigger module 200, the other end of the first capacitor C1 is grounded, and the other end of the fifth resistor R5 is connected with the power supply.

[0043] The first switch tube Q1 includes a first triode, the first end of the first switch tube Q1 is the base of the first triode, the second end of the first switch tube Q1 is the emitter of the first triode, and the third end of the first switch tube Q1 is the collector of the first triode.

[0044] The base of the first triode is connected with the first signal output terminal through the fourth resistor R4, when the first signal output terminal outputs a high level signal, the first triode is turned on and grounded, so that the output terminal of the power-on trigger module 200, that is, the PON signal terminal, is grounded to output a low level signal, that is, the first trigger signal is a low level signal.

[0045] As an embodiment, the delay unit 220 includes a sixth resistor R6, a second capacitor C2 and a second switch tube Q2, one end of the sixth resistor R6 is connected with the first signal output terminal, the other end of the sixth resistor R6 and the second capacitor C2 are connected with the first end of the second switch tube Q2, the second end of the second switch tube Q2 is grounded, and the third end of the second switch tube Q2 is connected with the first end of the first switch tube Q1. The second switch tube Q2 includes a second triode, the first end of the second switch tube Q2 is the base of the second triode, the second end of the second switch tube Q2 is the emitter of the second triode, and the third end of the second switch tube Q2 is the collector of the second triode.

[0046] When the first signal output end outputs a high level signal, the first triode is turned on according to the high level signal, so that the output end PON signal end outputs a low level signal; at the same time, the second capacitor C2 enters a charging state, and when the second capacitor C2 is charged to a certain time, the base of the second triode reaches a turn-on voltage such as 0.7V, the second triode is turned on, the base of the first triode is pulled low, that is, the delay unit 220 outputs a low level signal for the switching signal output by the trigger unit 210, so that the first triode is turned off, and then the PON signal end is pulled up to a high level by the fifth resistor R5, that is, a second trigger signal, that is, a high level signal, so that the subsequent controller 300 executes the corresponding start-up action according to the first trigger signal and the second trigger signal output in sequence.

[0047] Among them, the time for the second capacitor C2 to charge to the turn-on voltage of the second triode is a preset time. Then in this embodiment, the capacity of the second capacitor C2 and the resistance value of the sixth resistor R6 can be controlled to control the length of the preset time, and then control the pulse width of the first trigger signal, that is, the low level signal.

[0048] When the toggle switch 100 is in the start-up position, the conduction loss IQ of the first triode in the switch control circuit is VBAT / R4, if the resistance value of the fourth resistor R4 is 1MΩ, and VBAT is 4.4V, then the power consumption current is 4.4uA / 1MΩ=4.4uA; when the toggle switch 100 is in the shutdown position, the static loss of the switch in the circuit is VBAT / R3, if the resistance value of the third resistor R3 is 0.1MΩ, then the loss current is 44uA.

[0049] In this embodiment, the switch control circuit is obtained by setting simple components such as toggle switches, resistors and triodes, and does not need to set an additional MCU (Microcontroller Unit) to output the start-up signal and the shutdown signal, so as to realize the start-up and shutdown control of the smart glasses. Moreover, the circuit structure is simple, the power consumption is uA microampere level, the power consumption is low, and the overall power consumption of the smart glasses is extremely low compared with setting the MCU to obtain the start-up and shutdown signals, so as to reduce the overall power consumption.

[0050] The embodiment of the application also provides a smart glass, which comprises the above-mentioned switch control circuit, and since the switch control circuit is described in detail above, details are not repeated here.

[0051] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0052] The switching control circuit provided by the embodiments of the present application is described in detail above, and the principle and implementation manner of the present application are described by applying specific examples. The above embodiment description is only used to help understand the technical solutions of the present application and the core idea thereof. It should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently, and the modification or replacement does not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power on / off control circuit, characterized in that, The switch control circuit comprises: A toggle switch, a first signal output end of the toggle switch is used for outputting a first level signal when the toggle switch is in a power-on position, and outputting a second level signal when the toggle switch is in a power-off position; a second signal output end of the toggle switch is used for outputting the second level signal when the toggle switch is in the power-on position, and outputting the first level signal when the toggle switch is in the power-off position; A power-on trigger module, an input end of the power-on trigger module is connected with the first signal output end; the power-on trigger module is used for outputting a first trigger signal according to the first level signal, and outputting a second trigger signal after a preset time of outputting the first trigger signal; A controller, the controller is connected with the second signal output end and an output end of the power-on trigger module, the controller is used for executing a power-on action when the output end of the power-on trigger module outputs the first trigger signal and the second trigger signal in sequence is detected, and is used for executing a power-off action when the first level signal output by the second signal output end is detected.

2. The power-on / off control circuit according to claim 1, wherein The toggle switch comprises: A switch terminal, the switch terminal comprises a first end, a second end and a third end, the second end is grounded; when the switch terminal is in a power-on position, the second end and the third end are short-circuited, when the switch terminal is in a power-off position, the first end and the second end are short-circuited; A first output unit, the first output unit is connected with the first end, and is used for outputting the first level signal when the switch terminal is in the power-on position, and outputting the second level signal when the switch terminal is in the power-off position; A second output unit, the second output unit is connected with the second end, and is used for outputting the second level signal when the switch terminal is in the power-on position, and outputting the first level signal when the switch terminal is in the power-off position.

3. The power-on / off control circuit according to claim 2, wherein The power-on trigger module comprises: A trigger unit, the trigger unit is connected with the first output unit and the controller, the trigger unit is used for outputting the first trigger signal according to the first level signal; A delay unit, the delay unit is connected with the first output unit and the trigger unit, the delay unit is used for charging according to the first level signal, and outputting a switching signal after charging for the preset time, so that the trigger unit outputs the second trigger signal.

4. The power-on / off control circuit according to claim 2, wherein The first output unit comprises a first resistor and a second resistor, one end of the first resistor is connected with the first end, the other end of the first resistor is connected with the first signal output end and one end of the second resistor, the other end of the second resistor is connected with electricity.

5. The power-on / off control circuit according to claim 2, wherein The second output unit comprises a third resistor, one end of the third resistor is connected with the second end, the second end is also connected with the second signal output end, the other end of the third resistor is connected with electricity.

6. The power-on / off control circuit according to claim 3, wherein The trigger unit comprises a fourth resistor, a fifth resistor, a first switch tube and a first capacitor, one end of the fourth resistor is connected with the first signal output end, the other end of the fourth resistor is connected with the first end of the first switch tube, the second end of the first switch tube is grounded, the third end of the first switch tube and one end of the fifth resistor are connected with the output end of the power-on trigger module, one end of the first capacitor is connected with the output end of the power-on trigger module, the other end of the first capacitor is grounded, and the other end of the fifth resistor is connected with electricity.

7. The power-on / off control circuit according to claim 6, wherein The delay unit comprises a sixth resistor, a second capacitor and a second switch tube, one end of the sixth resistor is connected with the first signal output end, the other end of the sixth resistor and the second capacitor are connected with the first end of the second switch tube, the second end of the second switch tube is grounded, and the third end of the second switch tube is connected with the first end of the first switch tube.

8. The power-on / off control circuit according to claim 6, wherein The first switch tube comprises a first triode, the first end of the first switch tube is the base of the first triode, the second end of the first switch tube is the emitter of the first triode, and the third end of the first switch tube is the collector of the first triode.

9. The power-on / off control circuit according to claim 7, wherein The second switch tube comprises a second triode, the first end of the second switch tube is the base of the second triode, the second end of the second switch tube is the emitter of the second triode, and the third end of the second switch tube is the collector of the second triode.

10. An intelligent eyewear, characterized in that, The intelligent glasses comprise the power-on / off control circuit according to any one of claims 1-9.

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