Intelligent induction prompting device based on BLE
By using a BLE-based intelligent sensing and prompting device that combines ambient light sensors, distance sensors, and gravity sensors, the device can detect and remind students to adjust their learning posture in real time, solving the problem of cumbersome adjustment of smart desk lamps and improving the convenience and efficiency of learning.
Patent Information
- Application Number
- CN202511024983.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-10-28
AI Technical Summary
Existing smart desk lamps have cumbersome adjustment methods, which affect students' enthusiasm for independent learning, and lack real-time detection and reminder functions for ambient light and distance to obstructions.
Design a BLE-based intelligent sensing prompting device, including a main control module, a power supply module, a sensor module, and a prompting module. It detects illuminance, distance to obstructions, and learning posture through ambient light sensors, distance sensors, and gravity sensors, provides reminders using LED status indicators and motor vibration, and transmits data to a mobile terminal via Bluetooth communication.
It enables real-time detection and alerts for ambient light levels and distance to obstructions, corrects students' learning posture, and improves the ease of use and learning efficiency of smart desk lamps.
Smart Images
Figure CN120853353A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of Bluetooth communication technology, and particularly relates to a BLE-based intelligent sensing prompting device. Background Technology
[0002] With the development of the times, users' demands for data interaction are increasing, and the need for more functions in mobile phone products is becoming increasingly urgent. Bluetooth sensors are sensor devices based on Bluetooth short-range wireless communication technology, mainly used for task scheduling between modules, data communication, and interaction with mobile phones. For example, when students use smart desk lamps, they need to adjust the lamp's illuminance and beam angle to prevent eye strain. However, most smart desk lamps are manually adjustable, which is cumbersome and usually requires parents to accompany their children. This may affect students' enthusiasm for independent study at home. Therefore, there is an urgent need to provide a BLE-based intelligent sensing and prompting device to solve the aforementioned technical problems. Summary of the Invention
[0003] In view of this, the present invention provides a BLE-based intelligent sensing prompting device that can detect ambient light intensity and distance to obstructions in real time, effectively judge the data from various sensors and issue reminders, which can correct students' learning posture. The specific technical solution is as follows.
[0004] This invention provides a BLE-based intelligent sensing prompting device, comprising: The main control module, located on the circuit board, is used to read data from multiple sensors, perform algorithm calculations, and save the data. The power module includes a charge / discharge protection circuit and a power management circuit. The charge / discharge protection circuit and the power management circuit are both connected to the main control module. The charge / discharge protection circuit is used to protect the battery from overcharging or over-discharging, and the power management circuit is used to supply power to various modules or sensors on the circuit board. The sensor module includes an ambient light sensor, a distance sensor, and a gravity sensor. The ambient light sensor, the distance sensor, and the gravity sensor are all connected to the main control module. The ambient light sensor is used to detect ambient light intensity, the distance sensor is used to detect the distance to obstructions, and the gravity sensor is used to detect angles. The prompting module is connected to the main control module. The main control module receives the ambient light intensity, the distance to the obstruction, and the angle, and determines the sensor data corresponding to the ambient light intensity, the distance to the obstruction, and the angle. Based on the sensor data, the main control module controls the prompting module to execute and transmits the sensor data to the mobile terminal.
[0005] As a preferred embodiment of the above technical solution, the prompting module includes an LED status indicator circuit and a motor vibration circuit, both of which are connected to the main control module. When the main control module receives the ambient light intensity detected by the ambient light sensor as being less than the low light threshold, the main control module controls the LED status indicator circuit to flash as a reminder. When the main control module receives a signal from the distance sensor that the distance to the obstruction is less than the distance threshold, the main control module controls the vibration motor in the motor vibration circuit to issue a warning.
[0006] As a preferred embodiment of the above technical solution, the main control module is provided with three angle thresholds for left, right, and front directions. When the main control module receives a tilt angle from the gravity sensor that exceeds the angle threshold, the main control module controls the vibration motor in the motor vibration circuit to issue a warning.
[0007] As a preferred embodiment of the above technical solution, the LED status indicator circuit includes diode D8226, diode D8227, resistor R3, and resistor R23. The anode of diode D8226 is connected to one end of resistor R3, and the other end of resistor R3 is connected to one end of resistor R23 and the main control module. The cathode of diode D8226 is connected to the main control module, and the other end of resistor R23 is connected to the anode of diode D8227. The cathode of diode D8227 is connected to the main control module.
[0008] As a preferred embodiment of the above technical solution, the vibration motor circuit includes a resistor R18, a resistor R19, a diode DP8, a surface mount motor M1, and a MOSFET LQ1. One end of the resistor R18 is connected to the cathode of the diode DP8 and the surface mount motor M1. The anode of the diode DP8 is connected to the surface mount motor M1 and the drain of the MOSFET LQ1. The gate of the MOSFET LQ1 is connected to one end of the resistor R19. The source of the MOSFET LQ1 is grounded. The other ends of the resistor R19 and the other ends of the resistor R18 are connected to the main control module.
[0009] As a preferred embodiment of the above technical solution, the main control module includes a chip U1, a first clock circuit, a second clock circuit, a first filter circuit, and a second filter circuit, wherein the first clock circuit, the second clock circuit, the first filter circuit, and the second filter circuit are all connected to the chip U1. The first clock circuit includes a crystal oscillator Y1, a capacitor C1, and a capacitor C3. Both capacitors C1 and C3 are connected to the crystal oscillator Y1. The second clock circuit includes a crystal oscillator Y2 connected to the chip U1. Both the first and second filter circuits include multiple resistors and multiple capacitors.
[0010] As a preferred embodiment of the above technical solution, the main control module further includes a button circuit and a connection unit. One end of the button circuit and the connection unit are connected to the chip U1, and the other end of the connection unit is connected to each sensor.
[0011] As a preferred embodiment of the above technical solution, the charge and discharge protection circuit includes a chip U2, multiple parallel capacitors and a capacitor, all of which are connected to the chip U2. The power management circuit includes a first LDO unit and a second LDO unit connected to the chip U2. The second LDO unit is connected to the first LDO unit through a power switch unit. The power switch unit includes a chip U11 and a capacitor C18, and the capacitor C18 is connected to the chip U11.
[0012] As a preferred embodiment of the above technical solution, the gravity sensor includes a chip U4 and a capacitor C15, with the capacitor C15 connected to the chip U4. The chip U4 is of model SC7A20.
[0013] As a preferred embodiment of the above technical solution, the ambient light sensor and the distance sensor include a chip U5, a resistor R20, a capacitor C13, and a capacitor C16. The resistor R20, capacitor C13, and capacitor C16 are all connected to the chip U5, and the chip U5 is model W2031.
[0014] This invention provides a BLE-based intelligent sensing prompting device. It comprises a main control module, a power module, a sensor module, and a prompting module. The main control module receives ambient light intensity, distance to and angle of obstructions, and determines the corresponding sensor data. Based on this data, it controls the prompting module to execute commands and transmits the sensor data to a mobile terminal. This allows for real-time detection of ambient light intensity and obstruction distance, effective judgment of sensor data, and the issuance of reminders. It can help correct students' learning posture. The device employs a BLE low-power main control chip, and integrates the ambient light sensor and distance sensor into a single chip, improving the integration and operational stability of the intelligent sensing prompting device. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1The structural block diagram of the BLE-based intelligent sensing prompting device provided by the present invention; Figure 2 The circuit diagram of the main control module provided for this invention; Figure 3 A circuit diagram of the power module provided for this invention; Figure 4 Circuit diagrams of the ambient light sensor and distance sensor provided for this invention; Figure 5 A circuit diagram of the gravity sensor provided for this invention; Figure 6 A circuit diagram of the LED status indicator circuit provided by the present invention; Figure 7 A circuit diagram of the motor vibration circuit provided by the present invention; The symbols for the main components are explained below: 10-Main control module; 20-Power supply module; 21-Charging and discharging protection circuit; 22-Power management circuit; 30-Sensor module; 31-Ambient light sensor; 32-Distance sensor; 33-Gravity sensor; 40-Indication module; 41-LED status indicator circuit; 42-Motor vibration circuit. Detailed Implementation
[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0018] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0019] See Figure 1 This invention provides a BLE-based intelligent sensing prompting device, comprising: The main control module 10, mounted on the circuit board, is used to read data from multiple sensors, perform algorithm calculations, and save the data. The power module 20 includes a charge / discharge protection circuit 21 and a power management circuit 22. The charge / discharge protection circuit 21 and the power management circuit 22 are both connected to the main control module 10. The charge / discharge protection circuit 21 is used to protect the battery from overcharging or over-discharging, and the power management circuit 22 is used to supply power to various modules or sensors on the circuit board. The sensor module 30 includes an ambient light sensor 31, a distance sensor 32, and a gravity sensor 33. The ambient light sensor 31, the distance sensor 32, and the gravity sensor 33 are all connected to the main control module 10. The ambient light sensor 31 is used to detect ambient light intensity, the distance sensor 32 is used to detect the distance to an obstruction, and the gravity sensor 33 is used to detect angle. The prompting module 40 is connected to the main control module 10. The main control module 10 receives the ambient light intensity, the distance to the obstruction, and the angle, and determines the sensor data corresponding to the ambient light intensity, the distance to the obstruction, and the angle. Based on the sensor data, it controls the prompting module 40 to execute and transmits the sensor data to the mobile terminal.
[0020] In this embodiment, the prompting module 40 includes an LED status indicator circuit 41 and a motor vibration circuit 42, both of which are connected to the main control module 10. When the main control module 10 receives an ambient light intensity detected by the ambient light sensor 31 that is less than a low light threshold, the main control module 10 controls the LED status indicator circuit 41 to flash as a reminder. When the main control module 10 receives a distance from an obstruction detected by the distance sensor 32 that is less than a distance threshold, the main control module 10 controls the vibration motor in the motor vibration circuit 42 to provide a reminder. The main control module 10 has three angle thresholds: left, right, and front. When the main control module 10 receives a tilt angle from the gravity sensor 33 that exceeds the angle threshold, the main control module 10 controls the vibration motor in the motor vibration circuit 42 to provide a reminder. The LED status indicator circuit 41 includes diodes D8226 and D8227, resistors R3 and R23. The anode of diode D8226 is connected to one end of resistor R3, and the other end of resistor R3 is connected to one end of resistor R23 to the main control module. The cathode of diode D8226 is connected to the main control module, and the other end of resistor R23 is connected to the anode of diode D8227. The cathode of diode D8227 is connected to the main control module 10.
[0021] It should be noted that the vibration motor circuit includes a 42-pin resistor R18, a resistor R19, a diode DP8, a surface-mount motor M1, and a MOSFET LQ1. One end of resistor R18 is connected to the cathode of diode DP8 and the surface-mount motor M1. The anode of diode DP8 is connected to the surface-mount motor M1 and the drain of MOSFET LQ1. The gate of MOSFET LQ1 is connected to one end of resistor R19, and the source of MOSFET LQ1 is grounded. The other ends of resistor R19 and resistor R18 are connected to the main control module 10. The main control module 10 includes a chip U1, a first clock circuit, a second clock circuit, a first filter circuit, and a second filter circuit. The first clock circuit, the second clock circuit, the first filter circuit, and the second filter circuit are all connected to the chip U1. The first clock circuit includes a crystal oscillator Y1, a capacitor C1, and a capacitor C3. Capacitors C1 and C3 are both connected to the crystal oscillator Y1. The second clock circuit includes a crystal oscillator Y2 connected to the chip U1. Both the first filter circuit and the second filter circuit include multiple resistors and multiple capacitors. The main control module 10 also includes a button circuit and a connection unit. One end of the button circuit and the connection unit is connected to the chip U1, and the other end of the connection unit is connected to each sensor. The charge and discharge protection circuit 21 includes a chip U2, multiple parallel capacitors, and a capacitor. The multiple parallel capacitors and the capacitor are all connected to the chip U2. The power management circuit 22 includes a first LDO unit and a second LDO unit connected to the chip U2. The second LDO unit is connected to the first LDO unit via a power switch unit. The power switch unit includes a chip U11 and a capacitor C18, with the capacitor C18 connected to the chip U11. The gravity sensor 33 includes a chip U4 and a capacitor C15, with the capacitor C15 connected to the chip U4. The chip U4 is a model number SC7A20. The ambient light sensor 31 and the distance sensor 32 include a chip U5, a resistor R20, a capacitor C13, and a capacitor C16. The resistor R20, capacitor C13, and capacitor C16 are all connected to the chip U5, which is a model number W2031.
[0022] Specifically, see Figure 2The main control module 10 includes a chip U1, a first clock circuit, a second clock circuit, a first filter circuit, and a second filter circuit. The first filter circuit includes capacitors XC1, C2, and C4, and inductors LP1 and LP2. Capacitor XC1 is connected to pin 16 of chip U1, capacitor C4 is connected to pin 14 of chip U1, capacitor C2 is connected between inductors LP1 and LP2, and inductor LP2 is connected to pin 15 of chip U1. The crystal oscillator Y1 in the first clock circuit is model 8X032000BP, and the first clock circuit is connected to pins 13 and 12 of chip U1. The button circuit includes a tactile switch SW3 with model GT-TC077A-H0165-L5, and the tactile switch SW3 is connected to pin 8 of chip U1. The connection unit includes a first interface circuit connected to the LED status indicator circuit 41 and a second interface circuit connected to the chip U4 and the chip U5. The first interface circuit includes resistors R11 and R13, which are connected in parallel. The second interface circuit includes resistors R21 and R22, and two parallel MOSFETs Q9649. Resistors R21 and R22 are connected in parallel and respectively connected to the MOSFETs.
[0023] Specifically, see Figure 3 The discharge protection circuit 21 includes chip U2, capacitors C7, C26, C27, C28, C29, and resistor R5. Capacitors C26, C27, C28, and C29 are connected in parallel to one end of resistor R5. Capacitor C28 is connected to pin N4 of chip U2. The other end of resistor R5 is connected to capacitor C7 and pin N1 of chip U2. Capacitor C7 is connected to pins N2 and N3 of chip U2. Chip U2 is model FH8617G1, which is a single-string two-in-one lithium battery protection IC with built-in high-precision voltage detection circuit and delay circuit. The first LDO unit includes chip U6, capacitors C6, C9, C23, and C25. Capacitors C9 and C25 are connected in parallel to pin N1 of chip U6, and capacitors C6 and C23 are connected in parallel to pins N3 and N4 of chip U6. Chip U6 is model WL9005D4-33. The second LDO unit includes chip U7 and capacitor C17. Capacitor C17 is connected to pin N1 of chip U7. Chip U7 is model BCT2014ElS18-TR. The power switch unit includes chip U11 and capacitor C18. Chip U11 is model AW35121FOR. Pin A2 of chip U11 is connected to pin N1 of chip U6, pin B2 of chip U11 is connected to pin 9 of chip U1, and pin A1 of chip U11 is connected to vibration motor circuit 42.
[0024] Specifically, see Figure 4 and Figure 5The gravity sensor 33 includes a chip U4 and a capacitor C15. Capacitor C15 is connected to pins 7, 8, and 9 of chip U4. Pins 2 (Sensor_SDA) and 12 (Sensor_SCL) of chip U4 are connected to the second interface circuit. The ambient light sensor 31 and the distance sensor 32 use an integrated chip U5. Chip U5 is connected to a resistor R20, capacitors C13 and C16. Capacitor C13 is connected to pin 1 of chip U5, capacitor C16 is connected to pin 4 of chip U5, resistor R20 is connected to pin 5 of chip U5, and pins 2 (Sensor_SCL) and 8 (Sensor_SDA) of chip U5 are connected to the second interface circuit.
[0025] Specifically, see Figure 6 and Figure 7 The LED status indicator circuit 41 includes diode D8226, resistor R3, resistor R23, and diode D827. Diode D8226 can display green, and diode D827 can display white. One end of the LED status indicator circuit is connected to the first interface circuit, and the other end of the LED status indicator circuit 41 is connected to pins 19 (R_LED) and 20 (SYS_LED) of chip U1. The vibration motor circuit 42 includes a surface-mount motor M1 of model LD-SM-430, which can provide reminders through motor vibration. In other words, the intelligent sensing reminder device provided by this invention includes a BLE low-power main control chip, a battery charging and discharging protection chip, a low-power power management chip, a gravity sensor, a light and distance sensor, a vibration motor, buttons, and LEDs mounted on a circuit board. It can detect ambient light and obstruction distance in real time and transmit the data to a mobile APP via wireless Bluetooth communication. Based on the detected sensor data, it determines and provides reminders via LED lights or motor vibration, thereby improving the working stability of the intelligent sensing reminder device.
[0026] It should be understood that the present invention provides a BLE-based intelligent sensing prompting device. By setting up a main control module 10, a power supply module 20, a sensor module 30, and a prompting module 40, the main control module 10 receives ambient light intensity, distance to and angle of obstructions, and determines the corresponding sensor data. Based on the sensor data, it controls the prompting module 40 to execute and transmits the sensor data to a mobile terminal. It can detect ambient light intensity and distance to obstructions in real time, effectively judge the data from each sensor, and issue reminders, which can help correct students' learning posture. The device uses a BLE low-power main control chip, and the ambient light sensor and distance sensor are integrated into a single chip, which improves the integration and operational stability of the intelligent sensing prompting device.
[0027] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. A BLE-based intelligent sensing and prompting device, characterized in that, include: The main control module, located on the circuit board, is used to read data from multiple sensors, perform algorithm calculations, and save the data. The power module includes a charge / discharge protection circuit and a power management circuit. The charge / discharge protection circuit and the power management circuit are both connected to the main control module. The charge / discharge protection circuit is used to protect the battery from overcharging or over-discharging, and the power management circuit is used to supply power to various modules or sensors on the circuit board. The sensor module includes an ambient light sensor, a distance sensor, and a gravity sensor. The ambient light sensor, the distance sensor, and the gravity sensor are all connected to the main control module. The ambient light sensor is used to detect ambient light intensity, the distance sensor is used to detect the distance to obstructions, and the gravity sensor is used to detect angles. The prompting module is connected to the main control module. The main control module receives the ambient light intensity, the distance to the obstruction, and the angle, and determines the sensor data corresponding to the ambient light intensity, the distance to the obstruction, and the angle. Based on the sensor data, the main control module controls the prompting module to execute and transmits the sensor data to the mobile terminal.
2. The BLE-based intelligent sensing and prompting device according to claim 1, characterized in that, The prompting module includes an LED status indicator circuit and a motor vibration circuit, both of which are connected to the main control module. When the main control module receives the ambient light intensity detected by the ambient light sensor as being less than the low light threshold, the main control module controls the LED status indicator circuit to flash as a reminder. When the main control module receives a signal from the distance sensor that the distance to the obstruction is less than the distance threshold, the main control module controls the vibration motor in the motor vibration circuit to issue a warning.
3. The BLE-based intelligent sensing and prompting device according to claim 2, characterized in that, The main control module is set with three angle thresholds for left, right and front. When the main control module receives the tilt angle of the gravity sensor and it exceeds the angle threshold, the main control module controls the vibration motor in the motor vibration circuit to issue a warning.
4. The BLE-based intelligent sensing and prompting device according to claim 3, characterized in that, The LED status indicator circuit includes diodes D8226 and D8227, resistors R3 and R23. The anode of diode D8226 is connected to one end of resistor R3, and the other end of resistor R3 is connected to one end of resistor R23 and the main control module. The cathode of diode D8226 is connected to the main control module. The other end of resistor R23 is connected to the anode of diode D8227, and the cathode of diode D8227 is connected to the main control module.
5. The BLE-based intelligent sensing and prompting device according to claim 3, characterized in that, The vibration motor circuit includes resistor R18, resistor R19, diode DP8, surface mount motor M1, and MOSFET LQ1. One end of resistor R18 is connected to the cathode of diode DP8 and surface mount motor M1. The anode of diode DP8 is connected to surface mount motor M1 and the drain of MOSFET LQ1. The gate of MOSFET LQ1 is connected to one end of resistor R19. The source of MOSFET LQ1 is grounded. The other ends of resistor R19 and resistor R18 are connected to the main control module.
6. The BLE-based intelligent sensing and prompting device according to claim 1, characterized in that, The main control module includes a chip U1, a first clock circuit, a second clock circuit, a first filter circuit, and a second filter circuit. The first clock circuit, the second clock circuit, the first filter circuit, and the second filter circuit are all connected to the chip U1. The first clock circuit includes a crystal oscillator Y1, a capacitor C1, and a capacitor C3. Both capacitors C1 and C3 are connected to the crystal oscillator Y1. The second clock circuit includes a crystal oscillator Y2 connected to the chip U1. Both the first and second filter circuits include multiple resistors and multiple capacitors.
7. The BLE-based intelligent sensing and prompting device according to claim 6, characterized in that, The main control module also includes a button circuit and a connection unit. One end of the button circuit and the connection unit are connected to the chip U1, and the other end of the connection unit is connected to each sensor.
8. The BLE-based intelligent sensing and prompting device according to claim 1, characterized in that, The charge / discharge protection circuit includes a chip U2, multiple parallel capacitors and a capacitor, all of which are connected to the chip U2. The power management circuit includes a first LDO unit and a second LDO unit connected to the chip U2. The second LDO unit is connected to the first LDO unit through a power switch unit. The power switch unit includes a chip U11 and a capacitor C18, and the capacitor C18 is connected to the chip U11.
9. The BLE-based intelligent sensing and prompting device according to claim 1, characterized in that, The gravity sensor includes a chip U4 and a capacitor C15, with the capacitor C15 connected to the chip U4. The chip U4 is model SC7A20.
10. The BLE-based intelligent sensing and prompting device according to claim 1, characterized in that, The ambient light sensor and the distance sensor include a chip U5, a resistor R20, a capacitor C13, and a capacitor C16. The resistor R20, capacitor C13, and capacitor C16 are all connected to the chip U5, and the chip U5 is model W2031.