Starting-up circuit of scanning equipment and scanning equipment

Abstract

The utility model provides a startup circuit of scanning equipment and the scanning equipment. The startup circuit of the scanning equipment comprises a scanning trigger module, a scanning startup module and a control module, the scanning startup module is used for outputting a first startup control signal to the control module in response to a shutdown indication signal of the scanning equipment and a scanning trigger signal output when the scanning trigger module is triggered, and the first startup control signal is used for indicating the control module to control startup of the scanning equipment; and in response to a startup indication signal of the scanning device and a scanning trigger signal output when the scanning trigger module is triggered, a scanning control signal is output to the control module, and the scanning control signal is used for indicating the control module to control the scanning device to start a scanning function. The problem that the time of the scanning device from the shutdown state to the scanning function starting state is long can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a power-on circuit of a scanning device and a scanning device. Background Art

[0002] The development of technologies such as OCR (Optical Character Recognition), speech recognition, and machine translation has enabled scanning pens to translate and process information quickly and accurately, greatly improving work and study efficiency. The application prospects of scanning pens are broad, and they play a huge role in many fields such as education, business, and personal use.

[0003] Most current scanning pens use a power button to power on the pen. Only after powering on can operations such as scanning and word retrieval be performed. The use process is cumbersome and the user experience is poor. To solve this problem, there is a solution that uses the scanning button on the pen tip to power on the pen. When the pen is turned off, just pick up the scanning pen and press the scan button to power it on. The pressing time is used to determine whether to turn on the camera for scanning and word retrieval. This technology improves the convenience of using the scanning pen.

[0004] However, the above-mentioned startup process integrates the power button function into the pen tip scanning button, and it is necessary to judge the pressing time of the scanning button to start the power on or enter the scanning and word retrieval state. The time it takes for the user to enter the scanning and word retrieval interface from the shutdown state will be lengthened, which is extremely unfriendly to the user experience. Utility Model Content

[0005] The present application provides a power-on circuit for a scanning device and a scanning device, so as to solve the problem that it takes a long time for the scanning device to start the scanning function from the shutdown state.

[0006] According to a first aspect of an embodiment of the present application, a power-on circuit of a scanning device is provided, comprising a scanning trigger module, a scanning power-on module, and a control module;

[0007] The scanning and power-on module is used to:

[0008] In response to a shutdown indication signal of the scanning device and a scanning trigger signal outputted when the scanning trigger module is triggered, outputting a first power-on control signal to the control module, wherein the first power-on control signal is used to instruct the control module to control the scanning device to power on;

[0009] And, in response to the power-on indication signal of the scanning device and the scanning trigger signal output when the scanning trigger module is triggered, a scanning control signal is output to the control module, wherein the scanning control signal is used to instruct the control module to control the scanning device to start the scanning function.

[0010] Optionally, the scanning and power-on module includes a power-on control submodule and a scanning control submodule;

[0011] The power-on control submodule is configured to output a first power-on control signal to the control module in response to the power-off indication signal and the scan trigger signal;

[0012] The scan control submodule is configured to respond to the power-on indication signal and the scan trigger signal and output a scan control signal to the control module.

[0013] Optionally, the power-on control submodule is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module;

[0014] The power-on control submodule is specifically configured to respond to the power-off indication signal and be turned on, so that the output end of the scan trigger module is connected to the scan power-on control end of the control module, and output a first power-on control signal to the control module in response to the scan trigger signal.

[0015] Optionally, the power-on control submodule includes a first switch circuit and a second switch circuit;

[0016] The first switch circuit is configured to be disconnected in response to the shutdown indication signal and control the second switch circuit to be closed;

[0017] The second switch circuit is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module;

[0018] The second switch circuit is used to control the output end of the scan trigger module to be connected to the scan power-on control end of the control module when closed, and output a first power-on control signal to the control module in response to the scan trigger signal.

[0019] Optionally, the first switch circuit includes a first controllable switch, and the second switch circuit includes a second controllable switch;

[0020] The first controllable switch is configured to be opened in response to the shutdown indication signal and control the second controllable switch to be closed;

[0021] The second controllable switch is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module;

[0022] The second controllable switch is used to control the output end of the scan trigger module to connect to the scan power-on control end of the control module when closed, and output a first power-on control signal to the control module in response to the scan trigger signal.

[0023] Optionally, the scan control submodule is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module;

[0024] The scan control submodule is specifically configured to respond to the power-on indication signal to be turned on, so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

[0025] Optionally, the scanning control submodule includes a third switching circuit;

[0026] The third switch circuit is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module;

[0027] The third switch circuit is used to close in response to the power-on indication signal so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

[0028] Optionally, the third switch circuit includes a third controllable switch;

[0029] The third controllable switch is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module;

[0030] The third controllable switch is used to close in response to the power-on indication signal, so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

[0031] Optionally, the power-on circuit of the scanning device further includes a power switch;

[0032] The control module is configured to control the scanning device to power on in response to the second power-on control signal output by the power switch; or to control the scanning device to power off in response to the power-off control signal output by the power switch.

[0033] According to a second aspect of an embodiment of the present application, a scanning device is provided, comprising a power-on circuit of the scanning device as described in the first aspect.

[0034] In the present application, the power-on circuit of the scanning device includes a scanning trigger module, a scanning power-on module, and a control module. The power-off indication signal is used to indicate that the scanning device is in the power-off state, and the power-on indication signal is used to indicate that the scanning device is in the power-on state. When the scanning trigger module is triggered, the scanning trigger signal is output. The scanning power-on module responds to the power-off indication signal and the scanning trigger signal and outputs a first power-on control signal to the control module to control the scanning device to power on. The scanning power-on module responds to the power-on indication signal and the scanning trigger signal and outputs a scanning control signal to the control module to control the scanning device to start the scanning function. When the scanning trigger module is triggered in the power-off state of the scanning device, the scanning power-on module controls the scanning device to power on. There is no need to determine the triggering duration of the scanning trigger module and control the scanning device to power on according to the triggering duration. This shortens the power-on duration of the scanning device and achieves fast power-on. After the scanning startup module controls the scanning device to start up, the scanning device immediately enters the startup state. When the scanning device is in the startup state, when the scanning trigger module is triggered, the scanning startup module controls the scanning device to start the scanning function. There is no need to judge the triggering duration of the scanning trigger module and control the startup and start the scanning function according to the triggering duration. This shortens the time it takes for the scanning device to start the scanning function from the shutdown state, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0036] Figure 1 This is a schematic structural diagram of a power-on circuit of a scanning device provided in an embodiment of the present application;

[0037] Figure 2 This is a schematic structural diagram of a power-on circuit of a scanning device provided in an embodiment of the present application;

[0038] Figure 3 This is a schematic structural diagram of a power-on circuit of a scanning device provided in an embodiment of the present application;

[0039] Figure 4 This is a schematic structural diagram of a power-on control submodule provided in an embodiment of the present application;

[0040] Figure 5 This is a schematic structural diagram of a scanning control submodule provided in an embodiment of the present application;

[0041] Figure 6 This is a schematic structural diagram of a power-on circuit of a scanning device provided in an embodiment of the present application;

[0042] Figure 7 This is a structural schematic diagram of a power switch and a circuit for indicating that a control module can be turned on and off provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] Example scanning device power-on circuit

[0045] See also Figure 1 In an exemplary embodiment, a power-on circuit for a scanning device is provided. Figure 1 As shown, the power-on circuit of the scanning device includes a scanning trigger module 100, a scanning power-on module 200 and a control module 300;

[0046] The scanning and booting module 200 is used to:

[0047] In response to the shutdown indication signal of the scanning device and the scanning trigger signal outputted when the scanning trigger module 100 is triggered, outputting a first power-on control signal to the control module 300, wherein the first power-on control signal is used to instruct the control module 300 to control the scanning device to power on;

[0048] And, in response to the power-on indication signal of the scanning device and the scanning trigger signal output when the scanning trigger module 100 is triggered, a scanning control signal is output to the control module 300, wherein the scanning control signal is used to instruct the control module 300 to control the scanning device to start the scanning function.

[0049] In an exemplary embodiment, the scanning device may be a scanning pen or other scanning devices. This application uses the scanning device being a scanning pen as an example for explanation, but does not limit the description to this.

[0050] In an exemplary embodiment, the shutdown indication signal is used to indicate that the scanning device is in a shutdown state, and the startup indication signal is used to indicate that the scanning device is in a startup state.

[0051] In an exemplary embodiment, the scanning device can be a scanning pen, the scanning trigger module 100 can be a scanning button, or other components that can sense the scanning action. This application uses the scanning trigger module 100 as an example of a scanning button for explanation, but does not limit it to this.

[0052] In an exemplary embodiment, the scan trigger module 100 can be a scan button, which outputs a scan trigger signal when triggered. The scan button can be in a pressed state and outputs a scan trigger signal; the scan button is not in a pressed state, that is, when the scan button is released, the scan button does not output a scan trigger signal.

[0053] In an exemplary embodiment, the scanning trigger module 100 can be set at the pen tip of the scanning pen to cooperate with the camera of the scanning pen to trigger scanning and image acquisition.

[0054] In an exemplary embodiment, when the scanning device is powered off, pressing the scan button causes the scanning startup module to power on the device and quickly enter the scanning interface. Specifically, when the device is powered off, pressing the scan button to scan and retrieve a word quickly illuminates the screen, displaying the scanned content and translating it. For example, when the device is powered off, the time from pressing the scan button to the screen displaying the scan results is very short, approximately two seconds, significantly improving the user experience. When the device is powered on, pressing the scan button to perform a normal scanning operation normally displays the scanned content and translates it. This means that whether the device is powered off or on, scanning and translation can be performed by simply picking up the scanning pen, truly enabling instant access and enhancing the user experience.

[0055] At present, the scanning button power-on solution of the scanning pen is to integrate the power button function into the scanning button. The scanning button is connected to an interface of the control module, which can sense the pressing state of the scanning button and record the pressing time. The pressing time can be updated in real time and transmitted to the control module. After obtaining the pressing time, the control module determines whether the power-on time or the power-on time to enter the scanning and word-receiving interface has been reached, thereby realizing the power-on by pressing the scanning button or the power-on and word-receiving interface by pressing the scanning button. However, the above solution has the following disadvantages: (1) When the pen is in the off state, it is necessary to press the scanning button to turn on the pen first, and then press it for a certain period of time to enter the scanning and word-receiving interface. The pressing time for the user to enter the scanning and word-receiving interface from the off state is too long, which is extremely unfriendly to the user experience; (2) The user cannot accurately judge the pressing time during use, resulting in the user mistakenly entering the scanning and word-receiving interface when only wanting to turn on the pen, or entering the power-on interface when wanting to enter the scanning and word-receiving state.

[0056] In the present application, when the scanning device is in the off state, when the scanning trigger module is triggered, the scanning startup module controls the scanning device to start up. There is no need to judge the triggering duration of the scanning trigger module and control the scanning device to start up according to the triggering duration, which shortens the startup time of the scanning device and achieves fast startup. After the scanning startup module controls the scanning device to start up, the scanning device immediately enters the startup state. When the scanning device is in the on state, when the scanning trigger module is triggered, the scanning startup module controls the scanning device to start the scanning function. There is no need to judge the triggering duration of the scanning trigger module and control the startup and start the scanning function according to the triggering duration, which shortens the time it takes for the scanning device to start from the off state to the start of the scanning function, improves the user experience, and truly achieves the goal of picking up and using. When the scanning device is in the off state, when the scanning trigger module is triggered, it starts up and directly scans the words, avoiding the situation where the user may operate it incorrectly during use, and improves the user experience.

[0057] In some embodiments, as Figure 2 As shown, the scanning and power-on module 200 includes a power-on control submodule 210 and a scanning control submodule 220;

[0058] The power-on control submodule 210 is configured to respond to the power-off indication signal and the scan trigger signal and output a first power-on control signal to the control module 300;

[0059] The scan control submodule 220 is configured to respond to the power-on indication signal and the scan trigger signal and output a scan control signal to the control module 300 .

[0060] When the scanning device is in the off state and the scan trigger module is triggered, the power-on control submodule controls the scanning device to power on. This eliminates the need to determine the trigger duration of the scan trigger module and control the scanning device to power on based on the trigger duration. This shortens the scanning device's power-on time and enables quick startup. After the power-on control submodule controls the scanning device to power on, the scanning device immediately enters the power-on state. When the scanning device is in the power-on state and the scan trigger module is triggered, the scan control submodule controls the scanning device to start the scanning function. This eliminates the need to determine the trigger duration of the scan trigger module and control the power-on and scanning function based on the trigger duration. This shortens the time it takes for the scanning device to start the scanning function from the off state, improving the user experience.

[0061] In some embodiments, the power-on control submodule 210 is connected between the output terminal of the scan trigger module 100 and the scan power-on control terminal of the control module 300 ;

[0062] The power-on control submodule 210 is specifically configured to respond to the power-off indication signal to connect the output terminal of the scan trigger module 100 to the scan power-on control terminal of the control module 300 and output a first power-on control signal to the control module 300 in response to the scan trigger signal.

[0063] When the scanning device is in the shutdown state, the power-on control submodule 210 responds to the shutdown indication signal and is turned on, and the output end of the scanning trigger module 100 is connected to the scanning power-on control end of the control module 300. The output end of the scanning trigger module 100 is used to output the scanning trigger signal, and the scanning power-on control end of the control module 300 is used to receive the first power-on control signal. Since the power-on control submodule 210 is turned on, the output end of the scanning trigger module 100 is connected to the scanning power-on control end of the control module 300, and the first power-on control signal can be obtained based on the scanning trigger signal. This realizes that when the scanning device is in the shutdown state, the scanning trigger module is triggered, and the power-on control submodule controls the scanning device to start up. There is no need to judge the triggering duration of the scanning trigger module and control the scanning device to start up according to the triggering duration, which shortens the startup time of the scanning device and realizes fast startup.

[0064] In some embodiments, as Figure 3 As shown, the power-on control submodule 210 includes a first switch circuit 211 and a second switch circuit 212;

[0065] The first switch circuit 211 is configured to disconnect in response to a shutdown indication signal and control the second switch circuit 212 to close;

[0066] The second switch circuit 212 is connected between the output terminal of the scan trigger module 100 and the scan power-on control terminal of the control module 300;

[0067] The second switch circuit 212 is used to control the output end of the scan trigger module 100 to be connected to the scan power-on control end of the control module 300 when closed, and output a first power-on control signal to the control module 300 in response to the scan trigger signal.

[0068] When the scanning device is in the shutdown state, the first switch circuit 211 is disconnected in response to the shutdown indication signal. When the first switch circuit 211 is disconnected, the second switch circuit 212 is closed. When the second switch circuit 212 is closed, the output end of the scanning trigger module 100 is connected to the scanning power-on control end of the control module 300, and the first power-on control signal can be obtained based on the scanning trigger signal. In this way, when the scanning trigger module is triggered in the shutdown state of the scanning device, the power-on control submodule controls the scanning device to start up. There is no need to judge the triggering duration of the scanning trigger module and control the scanning device to start up according to the triggering duration, which shortens the power-on duration of the scanning device and achieves fast power-on.

[0069] In some embodiments, the first switch circuit 211 includes a first controllable switch, and the second switch circuit 212 includes a second controllable switch;

[0070] The first controllable switch is configured to open in response to a shutdown indication signal and control the second controllable switch to close;

[0071] The second controllable switch is connected between the output end of the scan trigger module 100 and the scan power-on control end of the control module 300.

[0072] The second controllable switch is used to control the output end of the scan trigger module 100 to be connected to the scan power-on control end of the control module 300 when closed, and output a first power-on control signal to the control module 300 in response to the scan trigger signal.

[0073] In the power-off state of the scanning device, the first controllable switch is disconnected in response to the power-off indication signal, and in the case that the first controllable switch is disconnected, the second controllable switch is closed. When the second controllable switch is closed, the output end of the scan trigger module 100 is connected to the scan power-on control end of the control module 300, and the first power-on control signal can be obtained based on the scan trigger signal, so that when the scan trigger module is triggered in the power-off state of the scanning device, the power-on control submodule controls the scanning device to power on, without the need to judge the trigger duration of the scan trigger module and control the scanning device to power on according to the trigger duration, thereby shortening the power-on duration of the scanning device and realizing fast power-on.

[0074] In the exemplary embodiments, the first controllable switch can be an NPN triode, and the second controllable switch can also be an NPN triode. The first controllable switch can also be other controllable switches, such as MOS (MOSFET is an abbreviation of Metal-Oxide-Semiconductor Field-Effect Transistor), IGBT (Insulated Gate Bipolar Transistor), etc. The second controllable switch can also be other controllable switches, and the present application does not limit this.

[0075] In the exemplary embodiments, as shown in Figure 4 FIG. 2 is a structural schematic diagram of the power-on control submodule 210. Figure 4In the figure, VCC18-RTC is the voltage terminal of the scanning device's RTC (Real-Time Clock). As long as the scanning device is connected to a power source (for example, a battery is internally connected to the scanning device), VCC18-RTC is always powered, regardless of whether the scanning device is powered on or off. That is, VCC18-RTC is always at a high level. POWER-ON is the output terminal of the scanning trigger module 100, DCDC1 is the voltage output terminal after voltage conversion of the scanning device's power supply voltage (i.e., the shutdown indication signal is output through DCDC1), the first controllable switch Q1 is an NPN transistor, the second controllable switch Q2 is an NPN transistor, and PMU-NMI is the scanning power-on control terminal of the control module 300. Resistor R1 is connected between DCDC1 and the base of the first controllable switch Q1. Resistor R2 is connected between the base of the first controllable switch Q1 and ground. Resistor R3 is connected between VCC18-RTC and the collector of the first controllable switch Q1. The emitter of the first controllable switch Q1 is grounded. Resistor R4 is connected between the collector of the first controllable switch Q1 and the base of the second controllable switch Q2. The collector of the second controllable switch Q2 is connected to PMU-NMI. The emitter of the second controllable switch Q2 is connected to POWER-ON. Resistor R5 is connected between POWER-ON and VCC18-RTC.

[0076] Figure 4 In the figure, the scanning device is in the off state, VCC18-RTC is at a high level, the resistor R5 is connected between POWER-ON and VCC18-RTC, POWER-ON is at a high level, the scanning trigger module is the scan button, and when the scan button is pressed, POWER-ON is pulled to connect to the ground, that is, POWER-ON is at a low level. Because the scanning device is in the shutdown state, DCDC1 has no power and is at a low level. The first controllable switch Q1 is disconnected, the resistor R3 is connected between VCC18-RTC and the collector of the first controllable switch Q1, and the resistor R4 is connected between the collector of the first controllable switch Q1 and the base of the second controllable switch Q2. The base of the second controllable switch Q2 is pulled high by VCC18-RTC, and the second controllable switch Q2 is turned on. The collector of the second controllable switch Q2 is connected to PMU-NMI, and the emitter of the second controllable switch Q2 is connected to POWER-ON. The collector and emitter of the second controllable switch Q2 are conductive, that is, PMU-NMI and POWER-ON are conductive, PMU-NMI is at a low level, and the control module controls the scanning device to turn on.

[0077] In some embodiments, the scan control submodule 220 is connected between the output terminal of the scan trigger module 100 and the scan start control terminal of the control module 300;

[0078] The scan control submodule 220 is specifically configured to respond to the power-on indication signal to connect the output end of the scan trigger module 100 to the scan start control end of the control module 300 and output a scan control signal to the control module 300 in response to the scan trigger signal.

[0079] After the power-on control submodule 210 controls the scanning device to power on, the scanning device immediately enters the power-on state. In the power-on state of the scanning device, the scanning control submodule 220 responds to the power-on indication signal and turns on. The output end of the scanning trigger module 100 is connected to the scanning start control end of the control module 300. The output end of the scanning trigger module 100 is used to output the scanning trigger signal, and the scanning start control end of the control module 300 is used to receive the scanning control signal. Since the scanning control submodule 220 is turned on, the output end of the scanning trigger module 100 is connected to the scanning start control end of the control module 300, and the scanning control signal can be obtained based on the scanning trigger signal. This realizes that when the scanning device is in the power-on state, when the scanning trigger module is triggered, the scanning control submodule 220 controls the scanning device to start the scanning function. There is no need to judge the triggering duration of the scanning trigger module and control the power-on and start-up of the scanning function according to the triggering duration. This shortens the time it takes for the scanning device to start the scanning function from the shutdown state, thereby improving the user experience.

[0080] In some embodiments, the scan control submodule 220 includes a third switch circuit;

[0081] The third switch circuit is connected between the output terminal of the scan trigger module 100 and the scan start control terminal of the control module 300;

[0082] The third switch circuit is used to close in response to the power-on indication signal to connect the output end of the scan trigger module 100 to the scan start control end of the control module 300 and output the scan control signal to the control module 300 in response to the scan trigger signal.

[0083] When the scanning device is in the power-on state, the third switch circuit is closed in response to the power-on indication signal, and the output end of the scanning trigger module 100 is connected to the scanning start control end of the control module 300, so that the scanning control signal can be obtained based on the scanning trigger signal. This realizes that when the scanning device is in the power-on state, when the scanning trigger module is triggered, the scanning control submodule 220 controls the scanning device to start the scanning function. There is no need to judge the triggering duration of the scanning trigger module and control the power-on and start the scanning function according to the triggering duration, which shortens the time for the scanning device to start the scanning function from the shutdown state and improves the user experience.

[0084] In some embodiments, the third switching circuit includes a third controllable switch;

[0085] The third controllable switch is connected between the output terminal of the scan trigger module 100 and the scan start control terminal of the control module 300;

[0086] The third controllable switch is used to close in response to the power-on indication signal to connect the output end of the scan trigger module 100 to the scan start control end of the control module 300 and output the scan control signal to the control module 300 in response to the scan trigger signal.

[0087] When the scanning device is in the power-on state, the third controllable switch is closed in response to the power-on indication signal, and the output end of the scanning trigger module 100 is connected to the scanning start control end of the control module 300, so that the scanning control signal can be obtained based on the scanning trigger signal. This realizes that when the scanning device is in the power-on state, when the scanning trigger module is triggered, the scanning control submodule 220 controls the scanning device to start the scanning function. There is no need to judge the triggering duration of the scanning trigger module and control the power-on and start-up of the scanning function according to the triggering duration, which shortens the time for the scanning device to start the scanning function from the shutdown state and improves the user experience.

[0088] In an exemplary embodiment, the third controllable switch may be an NPN transistor, or other controllable switches, such as MOS, IGBT, etc., which is not limited in this application.

[0089] In an exemplary embodiment, Figure 5 , which is a structural diagram of the scanning control submodule 220 . Figure 5 In the figure, S1 is the scan button, i.e., the scan trigger module 100; POWER-ON is the output terminal of the scan trigger module 100; DCDC1 is a voltage output terminal after voltage conversion of the power supply voltage of the scanning device; BLDO1 is another voltage output terminal after voltage conversion of the power supply voltage of the scanning device; a power-on indication signal is output via DCDC1 and BLDO1; the third controllable switch Q3 is an NPN transistor; and SCAN-KEY is the scan start control terminal of the control module 300. The scan button S1 is connected between POWER-ON and ground; the bidirectional voltage regulator ESD1 is connected between POWER-ON and ground; the resistor R6 is connected between the base of the third controllable switch Q3 and BLDO1; the resistor R7 is connected between the collector of the third controllable switch Q3 and DCDC1; the capacitor C1 is connected between the emitter of the third controllable switch Q3 and ground; POWER-ON is connected to the emitter of the third controllable switch Q3; and the resistor R8 is connected between the collector of the third controllable switch Q3 and SCAN-KEY.

[0090] Figure 5In the middle, the scanning device in the state of boot, DCDC1 and BLDO1 are powered on, BLDO1 is high, DCDC1 is high, because BLDO1 is high, the third controllable switch Q3 is turned on, the collector and emitter of the third controllable switch Q3 are turned on, the emitter of the third controllable switch Q3 is connected to POWER-ON, the resistor R8 is connected between the collector of the third controllable switch Q3 and SCAN-KEY, POWER-ON and SCAN-KEY are turned on, the scanning key S1 is pressed, POWER-ON is pulled to the ground, that is, POWER-ON is low, so when the scanning key S1 is pressed, SCAN-KEY is low, and the control module controls the scanning device to start the scanning function. The scanning key S1 continues to be pressed to realize the scanning function. Figure 4 In the middle, the scanning device in the state of boot, DCDC1 is high, the first controllable switch Q1 is turned on, that is, the collector and emitter of the first controllable switch Q1 are turned on, the emitter of the first controllable switch Q1 is connected to the ground, the resistor R4 is connected between the collector of the first controllable switch Q1 and the base of the second controllable switch Q2, the base of the second controllable switch Q2 is pulled low by the ground, the base of the second controllable switch Q2 is low, the second controllable switch Q2 is disconnected, and PMU-NMI is restored to high. When PMU-NMI is low, the scanning device can be started, and when PMU-NMI is high, the scanning device will not be turned off.

[0091] In some embodiments, as shown in Figure 6 The boot circuit of the scanning device further includes a power switch 400.

[0092] The control module 300 is configured to control the scanning device to start or shut down in response to a second boot control signal output by the power switch 400.

[0093] In an exemplary embodiment, the power switch 400 can be a power key or other form of switch. In this application, the power switch 400 is taken as a power key for explanation and description, but this is not limited.

[0094] In an exemplary embodiment, the power switch 400 can be placed at any position of the scanning device.

[0095] At present, the scanning button power-on solution of the scanning pen is to integrate the power button function into the scanning button. After the scanning button is integrated with the power button function, the shutdown logic also needs to judge the duration. For the user, it is necessary to pick up the scanning pen and press the scanning button for a certain period of time before it will shut down. This is consistent with the user's normal action of using the scanning pen to scan and take words. It is very likely to cause the scanning device to shut down during the scanning process, and the scanning device's screen off and sleep state must be operated through the scanning button. The function of the scanning button is too complicated, which will cause the user to use the corresponding function disorderly.

[0096] In the present application, the output end of the scan trigger module 100 is connected to the scan power control end of the control module 300 through the scan power module 200, and the power switch 400 is connected to the power control end of the control module 300. The electrical connections between the scan trigger module 100 and the power switch 400 and the control module 300 are two different interfaces, namely the scan power control end and the power control end, and their functions do not affect each other. For example, the scan power control end and the power control end are both GPIO (General-Purpose Input / Output). The power switch 400 controls the power on and off of the scanning device through the control module 300, and the scan trigger module 100 controls the power on of the scanning device and directly scans the word retrieval action through the scan power module 200 and the control module 300, thereby avoiding the situation where the user may operate it incorrectly and improving the user experience. The shutdown, screen off, and sleep functions of the scanning device can be controlled by the power switch 400. The scanning trigger module 100 is used solely for the scanning and word-capturing functions in different states such as power on and power off. The user's use logic is clear and simple and there will be no misoperation.

[0097] In an exemplary embodiment, Figure 7 , which is a structural diagram of the power switch 400 and the circuit for the power switch 400 to instruct the control module 300 to turn on and off.

[0098] Figure 7In the middle, S2 is a power button, that is, the power switch 400, VCC18-RTC is a voltage end of the RTC of the scanning device, as long as the scanning device is connected with the power supply (for example, the scanning device is internally connected with a battery), no matter the scanning device is in the power-on state or the power-off state, VCC18-RTC is in the power-on state, that is, VCC18-RTC is always high. POWER-KEY is a power control end of the control module 300. The first end of the power button S2 is grounded, the bidirectional voltage stabilizing tube ESD2 is connected between the second end of the power button S2 and the ground, the resistor R9 is connected between the second end of the power button S2 and the POWER-KEY, the resistor R10 is connected between the second end of the power button S2 and the ground, the resistor R11 is connected between VCC18-RTC and the POWER-KEY, and the capacitor C2 is connected between the POWER-KEY and the ground.

[0099] Figure 7 In the middle, when the power button S2 is pressed down, the first end of the power button S2 is grounded, the resistor R9 is connected between the second end of the power button S2 and the POWER-KEY, the POWER-KEY is pulled to be connected with the ground, that is, the POWER-KEY is pulled low, the POWER-KEY is low, the power-on logic is executed, and the scanning device is controlled to be powered on; the power button S2 is released after the scanning device is powered on, the resistor R11 is connected between VCC18-RTC and the POWER-KEY, the POWER-KEY is pulled high by VCC18-RTC and is restored to high, the power button S2 is pressed down again, the POWER-KEY is pulled low, the POWER-KEY is low, the power-off logic is executed, and the scanning device is controlled to be powered off. The power button S2 has no effect on the scanning button in controlling the scanning device to be powered on and powered off.

[0100] Exemplary Scanning Devices

[0101] Correspondingly, the embodiment of the present application also provides a scanning device, which comprises the power-on circuit of the scanning device provided by any of the above-mentioned embodiments of the present application.

[0102] Technical details not described in detail in the embodiment can refer to the specific content of the power-on circuit of the scanning device provided by the above-mentioned embodiments of the present application, which will not be described here.

[0103] In some embodiments, the scanning device comprises a scanning pen. The scanning device can also comprise other types, which are not limited by the present application.

[0104] It should be noted that each of the embodiments in the present specification adopts a progressive description manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between each embodiment can be referred to each other.

[0105] The modules and circuits in the embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0106] Finally, it should be noted that the terminology used herein, such as first and second, is merely used to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or further include elements inherent in such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article or device that includes the element.

[0107] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power-on circuit for a scanning device, characterized in that: It includes a scanning trigger module, a scanning power-on module and a control module; The scanning and power-on module is used to: In response to a shutdown indication signal of the scanning device and a scanning trigger signal outputted when the scanning trigger module is triggered, outputting a first power-on control signal to the control module, wherein the first power-on control signal is used to instruct the control module to control the scanning device to power on; And, in response to the power-on indication signal of the scanning device and the scanning trigger signal output when the scanning trigger module is triggered, a scanning control signal is output to the control module, wherein the scanning control signal is used to instruct the control module to control the scanning device to start the scanning function.

2. The power-on circuit of the scanning device according to claim 1, characterized in that: The scanning and power-on module includes a power-on control submodule and a scanning control submodule; The power-on control submodule is configured to output a first power-on control signal to the control module in response to the power-off indication signal and the scan trigger signal; The scan control submodule is configured to respond to the power-on indication signal and the scan trigger signal and output a scan control signal to the control module.

3. The power-on circuit of the scanning device according to claim 2, characterized in that: The power-on control submodule is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module; The power-on control submodule is specifically configured to respond to the power-off indication signal and be turned on, so that the output end of the scan trigger module is connected to the scan power-on control end of the control module, and output a first power-on control signal to the control module in response to the scan trigger signal.

4. The power-on circuit of the scanning device according to claim 3, characterized in that: The power-on control submodule includes a first switch circuit and a second switch circuit; The first switch circuit is configured to be disconnected in response to the shutdown indication signal and control the second switch circuit to be closed; The second switch circuit is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module; The second switch circuit is used to control the output end of the scan trigger module to be connected to the scan power-on control end of the control module when closed, and output a first power-on control signal to the control module in response to the scan trigger signal.

5. The power-on circuit of the scanning device according to claim 4, characterized in that: The first switch circuit includes a first controllable switch, and the second switch circuit includes a second controllable switch; The first controllable switch is configured to be opened in response to the shutdown indication signal and control the second controllable switch to be closed; The second controllable switch is connected between the output terminal of the scan trigger module and the scan power-on control terminal of the control module; The second controllable switch is used to control the output end of the scan trigger module to connect to the scan power-on control end of the control module when closed, and output a first power-on control signal to the control module in response to the scan trigger signal.

6. The power-on circuit of the scanning device according to claim 2, characterized in that: The scan control submodule is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module; The scan control submodule is specifically configured to respond to the power-on indication signal to be turned on, so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

7. The power-on circuit of the scanning device according to claim 6, characterized in that: The scanning control submodule includes a third switching circuit; The third switch circuit is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module; The third switch circuit is used to close in response to the power-on indication signal so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

8. The power-on circuit of the scanning device according to claim 7, characterized in that: The third switch circuit includes a third controllable switch; The third controllable switch is connected between the output terminal of the scan trigger module and the scan start control terminal of the control module; The third controllable switch is used to close in response to the power-on indication signal, so that the output end of the scan trigger module is connected to the scan start control end of the control module, and output a scan control signal to the control module in response to the scan trigger signal.

9. The power-on circuit of a scanning device according to claim 1, wherein: The power-on circuit of the scanning device further includes a power switch; The control module is configured to control the scanning device to power on in response to the second power-on control signal output by the power switch; or to control the scanning device to power off in response to the power-off control signal output by the power switch.

10. A scanning device, characterized in that: A power-on circuit for a scanning device comprising the power-on circuit of any one of claims 1 to 9.

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