Intelligent voice warning circuit and related devices

Abstract

The present application relates to the field of intelligent voice warning technology, and discloses an intelligent voice warning circuit and related devices, including: applied to the intelligent voice warning device, the intelligent voice warning circuit includes: a main control chip, a power interface circuit module, a voice warning circuit module and a distance detection circuit module, wherein the thirty-second end of the main control chip is connected to the power interface circuit module; the twenty-ninth end of the main control chip is connected to the voice warning circuit module; the fourteenth end of the main control chip is connected to the distance detection circuit module; the main control chip includes a reset circuit, a startup configuration circuit, an external crystal oscillator circuit and a debugging interface circuit, the seventh end of the main control chip is connected to the reset circuit; the forty-fourth end of the main control chip is connected to the startup configuration circuit; the fifth end of the main control chip is connected to the external crystal oscillator circuit; the thirty-fourth end of the main control chip is connected to the debugging interface circuit. The intelligent voice warning circuit provided by the present application can improve the accuracy of the intelligent voice warning device.

Description

Technical Field

[0001] The present application relates to the field of intelligent voice warning technology, and in particular to an intelligent voice warning circuit and related devices. Background Art

[0002] Intelligent voice warning devices are devices that use voice technology for safety warnings. They are widely used in many fields, such as transportation, electricity, and bank security. The future development of intelligent voice warning devices will focus on improving technical performance, expanding application scenarios, and integrating with other smart devices. However, current intelligent voice warning devices still have problems such as the accuracy of interaction in complex scenarios and system instability. Therefore, how to improve the accuracy of intelligent voice warning devices has become a problem that needs to be solved urgently. Summary of the invention

[0003] One purpose of the embodiments of the present application is to provide an intelligent voice warning circuit and related devices, which can enable the intelligent voice warning device to achieve targeted intelligent voice warnings from multiple aspects such as vision and hearing, which is conducive to improving the accuracy of the intelligent voice warning device.

[0004] In a first aspect, an embodiment of the present application provides an intelligent voice warning circuit, which is applied to an intelligent voice warning device. The intelligent voice warning circuit includes: a main control chip, a power interface circuit module, a voice warning circuit module and a distance detection circuit module, wherein:

[0005] The thirty-second terminal of the main control chip is connected to the power interface circuit module; the twenty-ninth terminal of the main control chip is connected to the voice warning circuit module; the fourteenth terminal of the main control chip is connected to the distance detection circuit module;

[0006] The main control chip includes a reset circuit, a startup configuration circuit, an external crystal oscillator circuit and a debugging interface circuit, wherein:

[0007] The seventh terminal of the main control chip is connected to the reset circuit; the forty-fourth terminal of the main control chip is connected to the startup configuration circuit; the fifth terminal of the main control chip is connected to the external crystal oscillator circuit; and the thirty-fourth terminal of the main control chip is connected to the debugging interface circuit.

[0008] In a possible implementation, the power interface circuit module includes: an A1 terminal, an A4 terminal, an A6 terminal, an A7 terminal, an A9 terminal, an A12 terminal, a B1 terminal, a B4 terminal, a B6 terminal, a B7 terminal, a B9 terminal, and a B12 terminal, wherein:

[0009] The A7 terminal of the power interface circuit module and the B7 terminal of the power interface circuit module are connected to the thirty-second terminal of the main control chip; the A6 terminal of the power interface circuit module and the B6 terminal of the power interface circuit module are connected to the thirty-third terminal of the main control chip; the A4 terminal, A9 terminal, B4 terminal and B9 terminal of the power interface circuit module are all connected to the second power supply; the A1 terminal, A12 terminal, B1 terminal and B12 terminal of the power interface circuit module are all connected to the ground.

[0010] In a possible implementation, the voice warning circuit module includes: a first voice warning circuit, a second voice warning circuit, a third voice warning circuit and a fifth voice warning circuit, wherein:

[0011] The second end of the first voice warning circuit is connected to the twenty-ninth end of the main control chip; the third end of the first voice warning circuit is connected to the twelfth end of the main control chip; the fourth end of the first voice warning circuit is connected to the thirteenth end of the main control chip; the fifth end of the first voice warning circuit is connected to the ground; the sixth end of the first voice warning circuit is connected to the second power supply;

[0012] The first end of the second voice warning circuit is connected to the seventh end of the first voice warning circuit; the second end of the second voice warning circuit is connected to the eighth end of the first voice warning circuit;

[0013] The first end of the third voice warning circuit is connected to the first power supply; the second end of the third voice warning circuit is connected to the ground; the third end of the third voice warning circuit is connected to the forty-second end of the main control chip; the fourth end of the third voice warning circuit is connected to the forty-third end of the main control chip; the fifth end of the third voice warning circuit is connected to the fifteenth end of the main control chip; the sixth end of the third voice warning circuit is connected to the sixteenth end of the main control chip;

[0014] The first end of the fifth voice warning circuit is connected to the forty-first end of the main control chip; the second end of the fifth voice warning circuit is connected to the fortieth end of the main control chip; the third end of the fifth voice warning circuit is connected to the thirty-ninth end of the main control chip; the fourth end of the fifth voice warning circuit is connected to the thirty-eighth end of the main control chip; the fifth end of the fifth voice warning circuit is connected to ground; the sixth end of the fifth voice warning circuit is connected to the first power supply; the seventh end of the fifth voice warning circuit is connected to the second power supply.

[0015] In a possible implementation, the distance detection circuit module includes: a first distance detection circuit and a second distance detection circuit; wherein,

[0016] The twentieth terminal of the first distance detection circuit is connected to a second power supply;

[0017] The third terminal of the second distance detection circuit is connected to the fourteenth terminal of the main control chip; the twentieth terminal of the second distance detection circuit is connected to the ground.

[0018] In a possible implementation, the power interface circuit module further includes a voltage regulating circuit, and the voltage regulating circuit includes a power input terminal, a first switch, a battery interface, a first diode, a second diode, a first inductor, a voltage regulator, and a first capacitor; wherein,

[0019] The power input end is connected to the second end of the first switch and the first end of the battery interface; the second end of the battery interface is connected to the ground; the third end of the first switch is connected to the first end of the second diode and the first end of the first inductor; the second end of the second diode is connected to the ground; the second end of the first inductor is connected to the first end of the first diode and the third end of the voltage regulator; the second end of the first diode is connected to the second end of the voltage regulator and the first end of the first capacitor and a second power supply; the first end of the voltage regulator is connected to the ground; the second end of the first capacitor is connected to the ground.

[0020] In a possible implementation, the power interface circuit module further includes a charging indication circuit, and the charging indication circuit includes a charging control chip, a third resistor, a fourth resistor, a fourth capacitor, a first light emitting diode LED and a second LED, wherein:

[0021] The first end of the charging control chip is connected to the first end of the fourth resistor and the third end of the charging control chip; the second end of the charging control chip is connected to the second end of the fourth resistor; the third end of the charging control chip is connected to the ground; the fourth end of the charging control chip is connected to the second power supply; the fifth end of the charging control chip is connected to the first end of the fourth capacitor and the power input end of the voltage regulating circuit; the sixth end of the charging control chip is connected to the first end of the first LED; the second end of the first LED is connected to the first end of the third resistor; the seventh end of the charging control chip is connected to the first end of the second LED; the second end of the second LED is connected to the first end of the third resistor; the second end of the third resistor is connected to the second power supply; the eighth end of the charging control chip is connected to the second power supply.

[0022] In a possible implementation, the power interface circuit module further includes a charging indication circuit, and the power interface circuit module includes a voltage converter, a fifth capacitor, a sixth capacitor, and a seventh capacitor, wherein:

[0023] The first end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the second end of the fifth capacitor is connected to the ground; the second end of the voltage converter is connected to the ground; the third end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the fourth end of the voltage converter is connected to the first end of the seventh capacitor; the second end of the seventh capacitor is connected to the ground; the fifth end of the voltage converter is connected to the first power supply and the first end of the sixth capacitor; the second end of the sixth capacitor is connected to the ground.

[0024] In a possible implementation, the reset circuit includes: a first button, a first capacitor, and a second resistor; wherein,

[0025] The first end of the first button is connected to the ground and the first end of the first capacitor; the third end of the first button is connected to the first end of the second resistor and the reset end; the second end of the first capacitor is connected to the seventh end of the main control chip and the third end of the first button; the second end of the second resistor is connected to the first power supply.

[0026] In a possible implementation, the external crystal oscillator circuit includes: a first crystal oscillator, a second capacitor and a third capacitor; wherein,

[0027] The first end of the first crystal oscillator is connected to the fifth end of the main control chip and the first end of the second capacitor; the second end of the second capacitor is connected to the ground; the second end of the first crystal oscillator is connected to the sixth end of the main control chip and the first end of the third capacitor; the second end of the third capacitor is connected to the ground.

[0028] In a second aspect, an embodiment of the present application provides an intelligent voice warning device, which includes a circuit board and an intelligent voice warning circuit as described in any one of the first aspects, and the intelligent voice warning circuit is arranged on the circuit board.

[0029] In a third aspect, an embodiment of the present application provides an intelligent voice warning device, which includes a shell and an intelligent voice warning device as in the second aspect, and the intelligent voice warning device is arranged inside the shell.

[0030] The intelligent voice warning circuit provided in the embodiment of the present application includes: a main control chip, a power interface circuit module, a voice warning circuit module and a distance detection circuit module, wherein the 32nd terminal of the main control chip is connected to the power interface circuit module; the 29th terminal of the main control chip is connected to the voice warning circuit module; the 14th terminal of the main control chip is connected to the distance detection circuit module; wherein the main control chip includes a reset circuit, a startup configuration circuit, an external crystal oscillator circuit and a debug interface circuit, wherein the 7th terminal of the main control chip is connected to the reset circuit; the 44th terminal of the main control chip is connected to the startup configuration circuit; the 5th terminal of the main control chip is connected to the external crystal oscillator circuit; the 34th terminal of the main control chip is connected to the debug interface circuit. Through the intelligent voice warning circuit provided by the present application, warnings can be provided in a targeted manner from multiple aspects such as vision and hearing, realizing a 24-hour all-weather prompt warning function, not only having the general text prompt function of various signboards, but also having the voice prompt function corresponding to the text prompt, which is conducive to ensuring the efficiency and accuracy of the intelligent warning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0032] Figure 1 A structural schematic diagram of an intelligent voice warning circuit is provided for an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of a main control chip is provided for an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the structure of a power interface circuit module is provided for an embodiment of the present application;

[0035] Figure 4A A structural schematic diagram of a first voice warning circuit in a voice warning circuit module is provided for an embodiment of the present application;

[0036] Figure 4B A structural schematic diagram of a second voice warning circuit in a voice warning circuit module is provided for an embodiment of the present application;

[0037] Figure 4C A structural schematic diagram of a third voice warning circuit in a voice warning circuit module is provided for an embodiment of the present application;

[0038] Figure 4DA structural schematic diagram of a fourth voice warning circuit in a voice warning circuit module is provided for an embodiment of the present application;

[0039] Figure 4E A structural schematic diagram of a fifth voice warning circuit in a voice warning circuit module is provided for an embodiment of the present application;

[0040] Figure 5 A structural schematic diagram of a distance detection circuit module is provided for an embodiment of the present application;

[0041] Figure 6 A schematic diagram of the structure of a voltage regulation circuit is provided for an embodiment of the present application;

[0042] Figure 7 A structural schematic diagram of a charging indication circuit is provided for an embodiment of the present application;

[0043] Figure 8 A schematic diagram of the structure of a voltage conversion circuit is provided for an embodiment of the present application;

[0044] Fig. 9 A structural schematic diagram of a reset circuit is provided for an embodiment of the present application;

[0045] Fig.10 A schematic diagram of the structure of an external crystal oscillator circuit is provided for an embodiment of the present application;

[0046] Fig.11 A schematic diagram of the structure of a startup mode selection circuit is provided for an embodiment of the present application;

[0047] Fig.12 A schematic diagram of the structure of a debugging interface circuit is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0049] It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other, all within the scope of protection of the present application. In addition, although the functional module division is performed in the device schematic diagram and the logical order is shown in the flow chart, in some cases, the steps shown or described can be performed in a sequence different from the module division in the device or the flow chart. Furthermore, the words "first", "second", "third", etc. used in this application do not limit the data and execution order, but only distinguish the same items or similar items with basically the same functions and effects.

[0050] In order to better understand the intelligent voice warning circuit provided by the embodiment of the present application, the existing intelligent voice warning circuit is briefly introduced below. In the existing scheme, the main operation process of the intelligent voice warning device includes: data acquisition and analysis module, voice warning module, risk assessment module, microwave sensing technology, photoelectric sensing technology. However, the intelligent voice warning device has problems such as the accuracy of interaction in complex scenarios and system instability.

[0051] This application aims to solve the above problems and proposes an intelligent voice warning device, including a data acquisition and analysis module, a risk hazard assessment module and a voice warning module. Among them, the data acquisition and analysis module can use microwave sensing technology and photoelectric sensing technology to monitor and analyze the on-site situation in real time and identify potential safety hazards and violations; the risk hazard assessment module can evaluate the effect of system operation, including operation monitoring, research and statistics, and effect evaluation, to ensure the efficiency and accuracy of the warning system; the intelligent voice warning module can send customized voice warning information to on-site personnel through the intelligent voice system based on the analysis results, reminding them to pay attention to safety or take corresponding measures. The intelligent voice warning device can use an infrared probe with an integrated voice chip to proactively inform and dissuade from multiple aspects of vision and hearing, just like a "safety officer" guarding the risk point, realizing a 24-hour all-weather warning function, and is an ideal warning tool in the maintenance process of power equipment.

[0052] See also Figure 1 , Figure 1 The present invention provides a schematic diagram of the structure of an intelligent voice warning circuit. Figure 1 As shown, the intelligent voice warning circuit includes: a main control chip, a power interface circuit module, a voice warning circuit module and a distance detection circuit module, wherein:

[0053] The thirty-second terminal of the main control chip is connected to the power interface circuit module; the twenty-ninth terminal of the main control chip is connected to the voice warning circuit module; the fourteenth terminal of the main control chip is connected to the distance detection circuit module;

[0054] The main control chip includes a reset circuit, a startup configuration circuit, an external crystal oscillator circuit and a debugging interface circuit, wherein:

[0055] The seventh terminal of the main control chip is connected to the reset circuit; the forty-fourth terminal of the main control chip is connected to the startup configuration circuit; the fifth terminal of the main control chip is connected to the external crystal oscillator circuit; and the thirty-fourth terminal of the main control chip is connected to the debugging interface circuit.

[0056] The 32nd terminal of the main control chip may be the PA11 pin of the main control chip, and the PA11 pin may be the negative line (Universal Serial Bus_N, USB_N) pin of the universal serial bus. The 29th terminal of the main control chip may be the PA8 pin, and the PA8 pin may be the A8 pin. The 14th terminal of the main control chip may be the PA4 pin, and the PA4 pin may be the trigger pin for taking a picture (trig_picture).

[0057] The thirty-second terminal of the main control chip (i.e., the PA11 pin, which can be the USB_N pin) is connected to the A7 terminal (i.e., the D- pin) of the power interface circuit module and the B7 terminal (i.e., the D- pin) of the power interface circuit module for universal serial bus (USB) communication; the thirty-third terminal of the main control chip (i.e., the PA12 pin, which can be the universal serial bus positive line (Universal Serial Bus_P, USB_P)) is connected to the A6 terminal (i.e., the D+ pin) of the power interface circuit module and the B6 terminal (i.e., the D+ pin) of the power interface circuit module for USB communication.

[0058] For example, Figure 2 As stated, Figure 2 The schematic diagram of the structure of a main control chip is shown as an example. Figure 2 As shown, the twenty-ninth terminal of the main control chip is connected to the second terminal of the first voice warning circuit in the voice warning circuit module; the twelfth terminal of the main control chip (i.e., the PA2 pin, which can be the universal asynchronous receiver / transmitter 2 data transmission terminal (Universal Asynchronous Receiver / Transmitter 2_TX, UART2_TX) is connected to the third terminal of the first voice warning circuit in the voice warning circuit module; the thirteenth terminal of the main control chip (i.e., the PA3 pin, which can be the UART2 data receiving pin (UART2_RX)) is connected to the fourth terminal of the first voice warning circuit in the voice warning circuit module. It can be understood that the connection of the above ports can be used for serial communication.

[0059] The forty-second terminal of the main control chip (i.e., the PB6 pin, which can be the internal integrated circuit serial clock line (Serial Clock Line of the first Inter-Integrated Circuit, I2C1_SCL) pin) is connected to the third terminal of the third voice warning circuit in the voice warning circuit module; the forty-third terminal of the main control chip (i.e., the PB7 pin, which can be the I2C1 serial data line (Serial Data Line of the first Inter-Integrated Circuit, I2C1_SDA) pin) is connected to the fourth terminal of the third voice warning circuit in the voice warning circuit module. It can be understood that the connection of the above ports can be used for internal integrated circuit bus (Inter-Integrated Circuit, I2C) communication.

[0060] The fifteenth terminal of the main control chip (i.e., the PA4 pin, which can be the time-of-flight input / output (TOF_IO) pin) is connected to the fifth terminal of the third voice warning circuit in the voice warning circuit module; the sixteenth terminal of the main control chip (i.e., the PA5 pin, which can be the time-of-flight external shutdown (TOF_XSHUT) pin) is connected to the sixth terminal of the third voice warning circuit in the voice warning circuit module. It can be understood that the connection of the above ports can be used for distance detection.

[0061] The thirty-eighth terminal of the main control chip (i.e., the PA15 / JTDI pin, which can be a chip select (CS) pin) is connected to the fourth terminal of the fifth voice warning circuit in the voice warning circuit module; the thirty-ninth terminal of the main control chip (i.e., the PB3 / JTDO pin, which can be a clock (CLK) pin) is connected to the third terminal of the fifth voice warning circuit in the voice warning circuit module; the fortieth terminal of the main control chip (i.e., the PB4 / JNTRST pin, which can be a master input slave output (Master In Slave Out, MISO) pin) is connected to the second terminal of the fifth voice warning circuit in the voice warning circuit module; the forty-first terminal of the main control chip (i.e., the PB5 pin, which can be a master output slave input (Master Out Slave In, MOSI) pin) is connected to the first terminal of the fifth voice warning circuit in the voice warning circuit module.

[0062] The fourteenth terminal of the main control chip (ie, the PA4 pin, which may be the trig_picture pin) is connected to the third terminal of the second distance detection circuit in the distance detection circuit module; and can be used to trigger a photo-taking function.

[0063] The first end (i.e., the Vbat pin, which can be the battery power input pin), the twenty-fourth end (i.e., the VDD_1 pin, which can be the positive power supply pin of the first chip), the forty-eighth end (i.e., the VDD_2 pin, which can be the positive power supply pin of the second chip) and the ninth end (i.e., the VDDA pin, which can be the analog power supply positive pin) of the main control chip can all be connected to the first power supply (which can be a +3.3V power supply) to provide power for the chip.

[0064] The twenty-third terminal (i.e., the VSS_1 pin, which can be the power supply ground pin of the first chip), the forty-seventh terminal (i.e., the VSS_2 pin, which can be the power supply ground pin of the second chip) and the eighth terminal (i.e., the VSSA pin, which can be the analog power supply ground pin) of the main control chip can all be connected to ground (Ground, GND).

[0065] The seventh terminal of the main control chip (ie, the NRST pin, which may be a reset pin) is connected to the reset terminal of the reset circuit for performing a reset process.

[0066] The forty-fourth terminal of the main control chip (ie, the BOOT0 pin, which may be a startup mode selection pin) is connected to the startup mode selection terminal of the startup configuration circuit to select the startup mode of the chip.

[0067] The fifth end of the main control chip (i.e., the OSC_IN / PD0 pin, which can be the external crystal oscillator input pin) is connected to the external crystal oscillator input end of the external crystal oscillator circuit, and the sixth end of the main control chip (i.e., OSC_OUT, which can be the external crystal oscillator output pin) is connected to the external crystal oscillator output end of the external crystal oscillator circuit; it can be used to provide the system clock.

[0068] The thirty-fourth terminal of the main control chip (i.e., the PA13 / JTMS / SWDIO pin, which can be the serial wire debug data input / output (Serial Wire Debug Input / Output, SWDIO) pin) is connected to the first end of the debug interface circuit; the thirty-seventh terminal of the main control chip (i.e., the PA14 / JTCK / SWCLK pin, which can be the serial wire clock (Serial WireClock, SWCLK) pin) is connected to the second end of the debug interface circuit; it can be used for program debugging.

[0069] In a possible implementation, the power interface circuit module includes: an A1 terminal, an A4 terminal, an A6 terminal, an A7 terminal, an A9 terminal, an A12 terminal, a B1 terminal, a B4 terminal, a B6 terminal, a B7 terminal, a B9 terminal, and a B12 terminal, wherein:

[0070] The A7 terminal of the power interface circuit module and the B7 terminal of the power interface circuit module are connected to the thirty-second terminal of the main control chip; the A6 terminal of the power interface circuit module and the B6 terminal of the power interface circuit module are connected to the thirty-third terminal of the main control chip; the A4 terminal, A9 terminal, B4 terminal and B9 terminal of the power interface circuit module are all connected to the second power supply; the A1 terminal, A12 terminal, B1 terminal and B12 terminal of the power interface circuit module are all connected to the ground.

[0071] For example, Figure 3 As stated, Figure 3 The structure diagram of a power interface circuit module is shown as an example. Figure 3 As shown, the A1, A12, B1 and B12 terminals of the power interface circuit module USB1 can all be ground pins, i.e., GND pins; the A4, A9, B4 and B9 terminals of the power interface circuit module can all be USB power bus pins, i.e., VBUS pins, which can be used to power USB1. The second power supply can be a +5V power supply.

[0072] The A6 and B6 terminals of the power interface circuit module can be the USB data positive line USB_P pin, that is, the D+ pin; the A7 and B7 terminals of the power interface circuit module can be the USB data negative line USB_N pin, that is, the D- pin.

[0073] The A8 end of the power interface circuit module can be used as the first sideband use pin SBU1, and the B8 end of the power interface circuit module can be used as the second sideband use pin SBU2, for the sideband use (Sideband Use) pin of the Universal Serial Bus Type-C (USB Type-C) interface.

[0074] The USB Type-C interface related pins Type-C 1 (i.e. SH1 pin), Type-C 2 (i.e. SH2 pin), Type-C3 (i.e. SH3 pin), and Type-C 4 (i.e. SH4 pin) can all be connected to ground for detecting or controlling the functions of the Type-C interface.

[0075] In a possible implementation, the voice warning circuit module includes: a first voice warning circuit, a second voice warning circuit, a third voice warning circuit and a fifth voice warning circuit, wherein:

[0076] The second end of the first voice warning circuit is connected to the twenty-ninth end of the main control chip; the third end of the first voice warning circuit is connected to the twelfth end of the main control chip; the fourth end of the first voice warning circuit is connected to the thirteenth end of the main control chip; the fifth end of the first voice warning circuit is connected to the ground; the sixth end of the first voice warning circuit is connected to the second power supply;

[0077] The first end of the second voice warning circuit is connected to the seventh end of the first voice warning circuit; the second end of the second voice warning circuit is connected to the eighth end of the first voice warning circuit;

[0078] The first end of the third voice warning circuit is connected to the first power supply; the second end of the third voice warning circuit is connected to the ground; the third end of the third voice warning circuit is connected to the forty-second end of the main control chip; the fourth end of the third voice warning circuit is connected to the forty-third end of the main control chip; the fifth end of the third voice warning circuit is connected to the fifteenth end of the main control chip; the sixth end of the third voice warning circuit is connected to the sixteenth end of the main control chip;

[0079] The first end of the fifth voice warning circuit is connected to the forty-first end of the main control chip; the second end of the fifth voice warning circuit is connected to the fortieth end of the main control chip; the third end of the fifth voice warning circuit is connected to the thirty-ninth end of the main control chip; the fourth end of the fifth voice warning circuit is connected to the thirty-eighth end of the main control chip; the fifth end of the fifth voice warning circuit is connected to ground; the sixth end of the fifth voice warning circuit is connected to the first power supply; the seventh end of the fifth voice warning circuit is connected to the second power supply.

[0080] For example, Figure 4A As stated, Figure 4A The structure diagram of the first voice warning circuit in a voice warning circuit module is shown as an example. Figure 4A As shown, the second end of the first voice warning circuit P1 can be the A8 end, connected to the twenty-ninth end of the main control chip; the third end of the first voice warning circuit can be the UART2_TX pin, connected to the twelfth end of the main control chip; the fourth end of the first voice warning circuit can be the UART2_RX pin, connected to the thirteenth end of the main control chip; the fifth end of the first voice warning circuit can be the GND pin, connected to the ground; the sixth end of the first voice warning circuit can be connected to the second power supply of +5V; the seventh end of the first voice warning circuit can be the speaker negative line SPK- pin, connected to the second end of the second voice warning circuit; the eighth end of the first voice warning circuit can be the speaker negative line SPK+ pin, connected to the first end of the second voice warning circuit.

[0081] For example, Figure 4B As stated, Figure 4B The structure diagram of the second voice warning circuit in a voice warning circuit module is shown as an example. Figure 4B As shown, the second voice warning circuit P2 has two pins, the first end may be the SPK+ pin, connected to the seventh end of the first voice warning circuit; the second end may be the SPK- pin, connected to the eighth end of the first voice warning circuit.

[0082] For example, Figure 4C As stated, Figure 4C The structure diagram of the third voice warning circuit in a voice warning circuit module is exemplarily shown. Figure 4C As shown, the first end of the third voice warning circuit P3 can be connected to the first power supply of +3.3V; the second end of the third voice warning circuit can be a GND pin, connected to the ground; the third end of the third voice warning circuit can be an I2C1_SCL pin, connected to the forty-second end of the main control chip; the fourth end of the third voice warning circuit can be an I2C1_SDA pin, connected to the forty-third end of the main control chip; the fifth end of the third voice warning circuit can be a TOF_IO pin, connected to the fifteenth end of the main control chip; the sixth end of the third voice warning circuit can be a TOF_XSHUT pin, connected to the sixteenth end of the main control chip.

[0083] For example, Figure 4D As stated, Figure 4D The structure diagram of the fourth voice warning circuit in a voice warning circuit module is exemplarily shown. Figure 4D As shown, the fourth voice warning circuit P4 can be an interface circuit including 8 pins. The first voice warning circuit P1 and the fourth voice warning circuit P4 can be two corresponding ports, such as P1 can be a PA port, and P4 can be a PB port. The specific connection relationship of each pin of the fourth voice warning circuit is not marked, and the connection relationship can be further designed and adjusted in the subsequent use process.

[0084] For example, Figure 4E As stated, Figure 4E The structure diagram of the fifth voice warning circuit in a voice warning circuit module is exemplarily shown. Figure 4EAs shown, the fifth voice warning circuit P5 may be an interface of model Pin HDR1X7, which may have 1 row and 7 columns with a total of 7 pins. The first end of the fifth voice warning circuit may be a MOSI pin, connected to the 41st terminal of the main control chip; the second end of the fifth voice warning circuit may be a MISO pin, connected to the 40th terminal of the main control chip; the third end of the fifth voice warning circuit may be a CLK pin, connected to the 39th terminal of the main control chip; the fourth end of the fifth voice warning circuit may be a CS pin, connected to the 38th terminal of the main control chip; the fifth end of the fifth voice warning circuit may be a GND pin, connected to the ground; the sixth end of the fifth voice warning circuit may be connected to a first power supply of +3.3V; the seventh end of the fifth voice warning circuit is connected to a second power supply of +5V.

[0085] The above-mentioned first voice warning circuit, second voice warning circuit, third voice warning circuit, fourth voice warning circuit and fifth voice warning circuit can be regarded as five different interface circuits, which have multiple pins, each pin is connected to a specific signal line, power line or ground line, so as to realize functions such as data transmission, power supply and grounding between various modules, and can play the role of connecting different modules or components in the circuit diagram.

[0086] For example, the second voice warning circuit P2 can be used to connect an audio module, the third voice warning circuit P3 can be used to connect an I2C device and a distance detection model (such as a camera device), the fourth voice warning circuit P4 can be used to connect other specific functions, and the fifth voice warning circuit P5 can be used to connect different signal lines and power lines, thereby ensuring the normal operation of the entire circuit system.

[0087] In a possible implementation, the distance detection circuit module includes: a first distance detection circuit and a second distance detection circuit; wherein,

[0088] The twentieth terminal of the first distance detection circuit is connected to a second power supply;

[0089] The third terminal of the second distance detection circuit is connected to the fourteenth terminal of the main control chip; the twentieth terminal of the second distance detection circuit is connected to the ground.

[0090] For example, Figure 5 As stated, Figure 5 The schematic diagram of the structure of a distance detection circuit module is shown as an example. Figure 5As shown, the distance detection circuit module includes a first distance detection circuit J1 and a second distance detection circuit J2, and the 20th terminal of the first distance detection circuit J1 is connected to the second power supply of +5V. The third terminal of the second distance detection circuit J2 is connected to the 14th terminal (trig_picture, PA4 pin) of the main control chip; the 20th terminal of the second distance detection circuit is connected to the ground. The distance detection circuit module can be used to trigger taking pictures.

[0091] In a possible implementation, the power interface circuit module further includes a voltage regulating circuit, and the voltage regulating circuit includes a power input terminal, a first switch, a battery interface, a first diode, a second diode, a first inductor, a voltage regulator, and a first capacitor; wherein,

[0092] The power input end is connected to the second end of the first switch and the first end of the battery interface; the second end of the battery interface is connected to the ground; the third end of the first switch is connected to the first end of the second diode and the first end of the first inductor; the second end of the second diode is connected to the ground; the second end of the first inductor is connected to the first end of the first diode and the third end of the voltage regulator; the second end of the first diode is connected to the second end of the voltage regulator and the first end of the first capacitor and a second power supply; the first end of the voltage regulator is connected to the ground; the second end of the first capacitor is connected to the ground.

[0093] For example, Figure 6 As stated, Figure 6 The schematic diagram of the structure of a voltage regulation circuit is shown as an example. Figure 6 As shown, the power input terminal of the voltage regulation circuit can be VCC_Bat. The model of the first diode and the second diode can be SS12. The inductance value of the first inductor can be 33uH. The capacitance value of the first capacitor can be 100uF. The voltage regulation circuit converts the input battery voltage into a stable 5V output through a boost and voltage regulation mechanism, and is suitable for electronic devices that require a stable 5V power supply.

[0094] In a possible implementation, the power interface circuit module further includes a charging indication circuit, and the charging indication circuit includes a charging control chip, a third resistor, a fourth resistor, a fourth capacitor, a first light emitting diode LED and a second LED, wherein:

[0095] The first end of the charging control chip is connected to the first end of the fourth resistor and the third end of the charging control chip; the second end of the charging control chip is connected to the second end of the fourth resistor; the third end of the charging control chip is connected to the ground; the fourth end of the charging control chip is connected to the second power supply; the fifth end of the charging control chip is connected to the first end of the fourth capacitor and the power input end of the voltage regulating circuit; the sixth end of the charging control chip is connected to the first end of the first LED; the second end of the first LED is connected to the first end of the third resistor; the seventh end of the charging control chip is connected to the first end of the second LED; the second end of the second LED is connected to the first end of the third resistor; the second end of the third resistor is connected to the second power supply; the eighth end of the charging control chip is connected to the second power supply.

[0096] For example, Figure 7 As stated, Figure 7 The structural diagram of a charging indication circuit is shown as an example. Figure 7 As shown, the first end of the charging control chip (i.e., U2) of the charging indication circuit can be a TEMP pin for monitoring temperature; the second end of the charging control chip of the charging indication circuit can be a PROG pin for setting the charging current; the third end of the charging control chip of the charging indication circuit can be a ground pin; the fourth end of the charging control chip of the charging indication circuit can be a VCC pin, which is connected to the second power supply of +5V and can provide power for the charging control chip; the fifth end of the charging control chip of the charging indication circuit can be a BAT pin, and the fifth end and the fourth capacitor (C4) of 10uF are connected to VCC_Bat, which can play a filtering role to ensure the stability of the power supply; the sixth end of the charging control chip of the charging indication circuit can be an STDBY pin to help adjust the power distribution of the entire system, and switch to standby mode to save power when the device does not need to run at full power; the seventh end of the charging control chip of the charging indication circuit can be a CHRG pin for controlling the charging process; the eighth end of the charging control chip of the charging indication circuit can be a CE pin, which is connected to the second power supply of +5V and can provide power for the charging control chip.

[0097] Among them, the first light emitting diode (LED) can be green (Green1), and the second LED can be red (Red1). The resistance values ​​of the fourth resistor and the third resistor can be 1kΩ. The capacitance value of the fourth capacitor can be 10uF. The charging indication circuit can be mainly used to manage the charging process of the battery, such as displaying the charging status through a red LED and a green LED. The charging control chip can be used to monitor and control the charging process to ensure safe charging.

[0098] When the battery is connected to the circuit, the charging control chip U2 starts working to monitor the status of the battery. If the battery is low on power, the charging control chip U2 can start the charging process, and the red LED will light up, indicating that charging is in progress; when the battery is fully charged, the charging control chip U2 will stop the charging process, and the green LED will light up, indicating that charging is complete. The charging management chip can control and monitor the charging process through internal circuits and external pins (CHRG, TEMP, PROG) to ensure that the battery is charged safely and efficiently. The charging indication circuit realizes effective management and status indication of the battery charging process through the charging control chip and LED indicator.

[0099] In a possible implementation, the power interface circuit module further includes a voltage conversion circuit, and the voltage conversion circuit includes a voltage converter, a fifth capacitor, a sixth capacitor, and a seventh capacitor, wherein:

[0100] The first end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the second end of the fifth capacitor is connected to the ground; the second end of the voltage converter is connected to the ground; the third end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the fourth end of the voltage converter is connected to the first end of the seventh capacitor; the second end of the seventh capacitor is connected to the ground; the fifth end of the voltage converter is connected to the first power supply and the first end of the sixth capacitor; the second end of the sixth capacitor is connected to the ground.

[0101] For example, Figure 8 As stated, Figure 8 The schematic diagram of a voltage conversion circuit is shown as an example. Figure 8 As shown, the first end of the voltage converter of the voltage conversion circuit can be a VCC pin, connected to a +5V second power supply to provide power; the second end of the voltage converter can be a GND pin, connected to the ground; the third end of the voltage converter can be an enable EN pin, which is used to enable the voltage converter to work when an appropriate signal is received. In this circuit, when the EN pin is connected to the second power supply, it can indicate that the voltage converter is in an enabled state; the fourth end of the voltage converter can be a BP pin, and the 0.01uF seventh capacitor (C7) on the BP pin can help stabilize the output voltage and reduce voltage fluctuations; the fifth end of the voltage converter can be a VOUT pin, which is used to output a stable +3.3V voltage.

[0102] Among them, the capacitance values ​​of the fifth capacitor and the sixth capacitor can both be 1uF; the capacitance value of the seventh capacitor can be 0.01uF. When the +5V power supply is input to the first end VCC pin of the voltage converter, the circuit inside the voltage converter starts to work. A 1uF fifth capacitor (C5) is connected between the +5V input power supply and the ground to filter out the high-frequency noise in the input power supply and ensure that the voltage input to the chip is more stable. The fourth end of the voltage converter (ie.

[0103] The voltage converter can convert the +5V input voltage to a +3.3V output voltage through an internal voltage regulation mechanism and output it from the VOUT pin. In general, the voltage conversion circuit can convert the +5V input voltage to a +3.3V output voltage through a voltage converter and its associated filter capacitors.

[0104] In a possible implementation, the reset circuit includes: a first button, a first capacitor, and a second resistor; wherein,

[0105] The first end of the first button is connected to the ground and the first end of the first capacitor; the third end of the first button is connected to the first end of the second resistor and the reset end; the second end of the first capacitor is connected to the seventh end of the main control chip and the third end of the first button; the second end of the second resistor is connected to the first power supply.

[0106] For example, Fig. 9 As stated, Fig. 9 The schematic diagram of the structure of a reset circuit is shown as an example. Fig. 9 As shown, when the first button (K1) in the reset circuit is not pressed, the +3.3V first power supply can charge the first capacitor C1 through the second resistor R2, and the reset pin maintains a high level; when the first button (K1) in the reset circuit is pressed, the first capacitor C1 can be quickly discharged through the first button, and the reset pin becomes a low level, thereby realizing the reset function. The reset circuit can generally be used for the reset operation of a microcontroller or other digital circuits. Among them, the capacitance value of the first capacitor (C1) can be 0.1u. The resistance value of the second resistor (R2) can be 10k.

[0107] In a possible implementation, the external crystal oscillator circuit includes: a first crystal oscillator, a second capacitor and a third capacitor; wherein,

[0108] The first end of the first crystal oscillator is connected to the fifth end of the main control chip and the first end of the second capacitor; the second end of the second capacitor is connected to the ground; the second end of the first crystal oscillator is connected to the sixth end of the main control chip and the first end of the third capacitor; the second end of the third capacitor is connected to the ground.

[0109] For example, Fig.10 As stated, Fig.10 The schematic diagram of the structure of an external crystal oscillator circuit is shown as an example. Fig.10 As shown, the frequency of the first crystal oscillator X1 can be 8 MHz. The capacitance values ​​of the second capacitor C2 and the third capacitor C3 can both be 22 pF. The external crystal oscillator circuit can be used to provide an accurate and stable clock signal, ensure the synchronous operation of the system, and improve the reliability of the system.

[0110] In a possible implementation, the startup configuration circuit includes a first resistor, wherein the startup mode selection pin BOOT0 is connected to a first end of the first resistor R1 ; and a second end of the first resistor is connected to ground (GND).

[0111] For example, Fig.11 As stated, Fig.11 The schematic diagram of the structure of a startup configuration circuit is shown as an example. Fig.11 As shown, the resistance of the first resistor may be 10 kΩ. The startup configuration circuit may be used to select a startup mode of the main control chip.

[0112] In one possible implementation, the first end of the debug interface circuit is connected to the thirty-fourth end of the main control chip; the second end of the debug interface circuit is connected to the thirty-seventh end of the main control chip; the third end of the debug interface circuit is connected to the ground; and the fourth end of the debug interface circuit is connected to the first power supply of +3.3V.

[0113] For example, Fig.12 As stated, Fig.12 The schematic diagram of the structure of a debugging interface circuit is shown as an example. The debugging interface technology of the present application is Serial Wire Debug (SWD), which is an interface technology used for debugging embedded systems. SWD can communicate through two wires: Serial Wire Debug Input / Output (SWDIO) is used for data input and output, that is, data transmission between the debugging host and the target chip; Serial Wire Debug Clock (SWCLK) is used to transmit the clock signal and provide a synchronous clock for data transmission.

[0114] Compared with the traditional Joint Test Action Group (JTAG) debug interface, SWD only requires two wires (SWDIO and SWCLK), while JTAG usually requires 4-5 wires, which is very advantageous on small chips with limited pin resources; and SWD can provide a higher data transmission rate, suitable for high-speed debugging; SWD has good compatibility, and many modern microcontrollers currently support the SWD debug interface.

[0115] An embodiment of the present application also provides an intelligent voice warning device, which includes a circuit board and an intelligent voice warning circuit as in any one of the aforementioned embodiments, and the intelligent voice warning circuit is arranged on the circuit board.

[0116] An embodiment of the present application further provides an intelligent voice warning device, which includes a shell and an intelligent voice warning device as in the aforementioned embodiment, wherein the intelligent voice warning device is disposed inside the shell.

[0117] The above described device or equipment embodiments are merely illustrative, wherein the unit modules described as separate components may or may not be physically separated, and the components for analog-to-digital conversion of the module units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network module units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0118] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method part in each implementation method can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent voice warning circuit, characterized in that: Applied to an intelligent voice warning device, the intelligent voice warning circuit includes: a main control chip, a power interface circuit module, a voice warning circuit module and a distance detection circuit module, wherein: The thirty-second terminal of the main control chip is connected to the power interface circuit module; the twenty-ninth terminal of the main control chip is connected to the voice warning circuit module; the fourteenth terminal of the main control chip is connected to the distance detection circuit module; The main control chip includes a reset circuit, a startup configuration circuit, an external crystal oscillator circuit and a debugging interface circuit, wherein: The seventh terminal of the main control chip is connected to the reset circuit; the forty-fourth terminal of the main control chip is connected to the startup configuration circuit; the fifth terminal of the main control chip is connected to the external crystal oscillator circuit; and the thirty-fourth terminal of the main control chip is connected to the debugging interface circuit.

2. The intelligent voice warning circuit according to claim 1, characterized in that: The power interface circuit module includes: A1 terminal, A4 terminal, A6 terminal, A7 terminal, A9 terminal, A12 terminal, B1 terminal, B4 terminal, B6 terminal, B7 terminal, B9 terminal, B12 terminal, wherein: The A7 terminal of the power interface circuit module and the B7 terminal of the power interface circuit module are connected to the thirty-second terminal of the main control chip; the A6 terminal of the power interface circuit module and the B6 terminal of the power interface circuit module are connected to the thirty-third terminal of the main control chip; the A4 terminal, A9 terminal, B4 terminal and B9 terminal of the power interface circuit module are all connected to the second power supply; the A1 terminal, A12 terminal, B1 terminal and B12 terminal of the power interface circuit module are all connected to the ground.

3. The intelligent voice warning circuit according to claim 2, characterized in that: The voice warning circuit module includes: a first voice warning circuit, a second voice warning circuit, a third voice warning circuit and a fifth voice warning circuit, wherein: The second end of the first voice warning circuit is connected to the twenty-ninth end of the main control chip; the third end of the first voice warning circuit is connected to the twelfth end of the main control chip; the fourth end of the first voice warning circuit is connected to the thirteenth end of the main control chip; the fifth end of the first voice warning circuit is connected to the ground; the sixth end of the first voice warning circuit is connected to the second power supply; The first end of the second voice warning circuit is connected to the seventh end of the first voice warning circuit; the second end of the second voice warning circuit is connected to the eighth end of the first voice warning circuit; The first end of the third voice warning circuit is connected to the first power supply; the second end of the third voice warning circuit is connected to the ground; the third end of the third voice warning circuit is connected to the forty-second end of the main control chip; the fourth end of the third voice warning circuit is connected to the forty-third end of the main control chip; the fifth end of the third voice warning circuit is connected to the fifteenth end of the main control chip; the sixth end of the third voice warning circuit is connected to the sixteenth end of the main control chip; The first end of the fifth voice warning circuit is connected to the forty-first end of the main control chip; the second end of the fifth voice warning circuit is connected to the fortieth end of the main control chip; the third end of the fifth voice warning circuit is connected to the thirty-ninth end of the main control chip; the fourth end of the fifth voice warning circuit is connected to the thirty-eighth end of the main control chip; the fifth end of the fifth voice warning circuit is connected to ground; the sixth end of the fifth voice warning circuit is connected to the first power supply; the seventh end of the fifth voice warning circuit is connected to the second power supply.

4. The intelligent voice warning circuit according to claim 3, characterized in that: The distance detection circuit module includes: a first distance detection circuit and a second distance detection circuit; wherein, The twentieth terminal of the first distance detection circuit is connected to a second power supply; The third terminal of the second distance detection circuit is connected to the fourteenth terminal of the main control chip; the twentieth terminal of the second distance detection circuit is connected to the ground.

5. The intelligent voice warning circuit according to claim 4, characterized in that: The power interface circuit module further includes a voltage regulating circuit, which includes a power input terminal, a first switch, a battery interface, a first diode, a second diode, a first inductor, a voltage regulator and a first capacitor; wherein, The power input end is connected to the second end of the first switch and the first end of the battery interface; the second end of the battery interface is connected to the ground; the third end of the first switch is connected to the first end of the second diode and the first end of the first inductor; the second end of the second diode is connected to the ground; the second end of the first inductor is connected to the first end of the first diode and the third end of the voltage regulator; the second end of the first diode is connected to the second end of the voltage regulator and the first end of the first capacitor and a second power supply; the first end of the voltage regulator is connected to the ground; the second end of the first capacitor is connected to the ground.

6. The intelligent voice warning circuit according to claim 5, characterized in that: The power interface circuit module further includes a charging indication circuit, which includes a charging control chip, a third resistor, a fourth resistor, a fourth capacitor, a first light emitting diode LED and a second LED, wherein: The first end of the charging control chip is connected to the first end of the fourth resistor and the third end of the charging control chip; the second end of the charging control chip is connected to the second end of the fourth resistor; the third end of the charging control chip is connected to the ground; the fourth end of the charging control chip is connected to the second power supply; the fifth end of the charging control chip is connected to the first end of the fourth capacitor and the power input end of the voltage regulating circuit; the sixth end of the charging control chip is connected to the first end of the first LED; the second end of the first LED is connected to the first end of the third resistor; the seventh end of the charging control chip is connected to the first end of the second LED; the second end of the second LED is connected to the first end of the third resistor; the second end of the third resistor is connected to the second power supply; the eighth end of the charging control chip is connected to the second power supply.

7. The intelligent voice warning circuit according to claim 6, characterized in that: The power interface circuit module further includes a voltage conversion circuit, which includes a voltage converter, a fifth capacitor, a sixth capacitor and a seventh capacitor, wherein: The first end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the second end of the fifth capacitor is connected to the ground; the second end of the voltage converter is connected to the ground; the third end of the voltage converter is connected to the second power supply and the first end of the fifth capacitor; the fourth end of the voltage converter is connected to the first end of the seventh capacitor; the second end of the seventh capacitor is connected to the ground; the fifth end of the voltage converter is connected to the first power supply and the first end of the sixth capacitor; the second end of the sixth capacitor is connected to the ground.

8. The intelligent voice warning circuit according to claim 7, characterized in that: The reset circuit includes: a first button, a first capacitor and a second resistor; wherein, The first end of the first button is connected to the ground and the first end of the first capacitor; the third end of the first button is connected to the first end of the second resistor and the reset end; the second end of the first capacitor is connected to the seventh end of the main control chip and the third end of the first button; the second end of the second resistor is connected to the first power supply.

9. The intelligent voice warning circuit according to claim 8, characterized in that: The external crystal oscillator circuit includes: a first crystal oscillator, a second capacitor and a third capacitor; wherein, The first end of the first crystal oscillator is connected to the fifth end of the main control chip and the first end of the second capacitor; the second end of the second capacitor is connected to the ground; the second end of the first crystal oscillator is connected to the sixth end of the main control chip and the first end of the third capacitor; the second end of the third capacitor is connected to the ground.

10. An intelligent voice warning device, characterized in that: The intelligent voice warning device includes a circuit board and an intelligent voice warning circuit as described in any one of claims 1-9, and the intelligent voice warning circuit is arranged on the circuit board.

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