Offline voice light control system

Abstract

The utility model discloses an offline voice lamp control system, include: pick up user voice signal's pickup unit, be used for resolving voice signal and output instruction signal's voice recognition unit, and voice recognition unit and pickup unit electric connection, the instruction signal that voice recognition unit provided is resolved and generates the light mode signal's light mode switching unit after, and light mode switching unit and voice recognition unit electric connection, the switch unit that opens and shuts under the control of light mode signal, and switch unit and light mode switching unit electric connection, the output end of step -down DC power supply conversion chip is connected the cathode end of freewheeling diode and first inductance one end respectively, and the anode end of freewheeling diode is grounded, and the other end of first inductance is connected with the one end of second electric capacity and voice recognition unit and light mode switching unit connection respectively, and the other end of second electric capacity is grounded. The utility model can adapt wide range voltage.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to an offline voice-controlled lighting system. Background Technology

[0002] Voice-controlled lights are a type of voice-activated electronic lighting device. They are characterized by their ease of operation and flexibility. Sensitive voice-controlled lights use a voice signal emitted by the user for about one second to easily and promptly turn the lighting device on and off. They also have an automatic delay-off function to prevent accidental triggering. Some models are equipped with a manual switch for added convenience.

[0003] The existing LED voice controller includes an LED light-emitting mode control unit, a voice forwarding unit, a first relay unit, and a conversion unit. The voice forwarding unit picks up the user's voice control commands and converts them into audio signals for output. The first relay unit relays the audio signals output by the voice forwarding unit. The conversion unit converts the audio signals into control commands that the LED light-emitting mode control unit can recognize and outputs them to the first relay unit. The LED light-emitting mode control unit receives the control commands from the first relay unit and outputs control signals to regulate the LED. Alternatively, the voice forwarding unit receives the control commands from the first relay unit and outputs them to the LED light-emitting mode control unit. The LED light-emitting mode control unit receives the control commands and outputs control signals to regulate the LED.

[0004] Although the aforementioned LEDs can be controlled by a voice controller, the controller requires network control, which involves the flow of signals between multiple devices. Using multiple devices not only increases costs but also results in slow response speeds due to the need for multiple stages to interpret voice commands and send instructions.

[0005] Although there are some control circuits for light switches that can be controlled without a network connection, these circuits are complex in structure and can usually only be connected to a power supply with an input voltage of 5 volts. Therefore, the control circuits mentioned above have significant limitations. Utility Model Content

[0006] This invention provides an offline voice-controlled lighting system that can adapt to a wide range of voltages.

[0007] The technical solutions to the above technical problems are as follows:

[0008] Offline voice-controlled lighting system, including:

[0009] A pickup unit that captures user speech signals;

[0010] A speech recognition unit is used to analyze speech signals and output command signals. The speech recognition unit is electrically connected to the pickup unit.

[0011] A lighting mode switching unit that parses the instruction signal provided by the voice recognition unit to generate a lighting mode signal is electrically connected to the voice recognition unit.

[0012] A switching unit that is turned on and off by a lighting mode signal, and the switching unit is electrically connected to the lighting mode switching unit;

[0013] It also includes a buck DC power converter chip, a freewheeling diode, a first inductor for energy storage, and a second capacitor. The output terminal of the buck DC power converter chip is connected to the cathode of the freewheeling diode and one end of the first inductor, respectively. The anode of the freewheeling diode is grounded. The other end of the first inductor is connected to one end of the second capacitor, as well as the voice recognition unit and the lighting mode switching unit. The other end of the second capacitor is grounded.

[0014] In this invention, when a voltage is applied to the input terminal of the buck DC-DC converter chip, the chip reduces, for example, 30V to 5V for output. The current through the first inductor increases linearly, simultaneously charging the first capacitor and providing operating voltage for the pickup unit and voice recognition unit. When the 30V voltage supplied to the input terminal of the buck DC-DC converter chip is cut off, the energy stored in the first inductor discharges through the freewheeling diode, the current in the first inductor decreases linearly, and the output voltage discharges through the first capacitor. In this invention, the buck DC-DC converter chip converts high-voltage DC to low-voltage DC, and the freewheeling diode, the first inductor, and the second capacitor meet the requirements of the voice recognition unit and the lighting mode switching unit. Attached Figure Description

[0015] Figure 1 This is the circuit diagram of the first offline voice-controlled lighting system.

[0016] Figure 2 This is the circuit diagram of the second type of offline voice-controlled lighting system.

[0017] Figure 3 This is a circuit diagram of the pickup unit and voice recognition unit in the third type of offline voice lighting control system.

[0018] Figure 4 This is a circuit diagram of the lighting mode switching unit and the switch unit in the fourth type of offline voice lighting control system. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1As shown, the offline voice-controlled lighting system of this utility model includes a voice pickup unit for picking up user voice signals, a voice recognition unit, a lighting mode switching unit, a switching unit, a step-down DC power converter chip U3, and a freewheeling diode.

[0021] D1, a first inductor L1 for energy storage, and a second capacitor C2. In this invention, the buck DC-DC converter chip U3 preferably uses the XL1509 model. The output terminal of the buck DC-DC converter chip U3 is connected to the cathode of the freewheeling diode D1 and one end of the first inductor L1, respectively. The anode of the freewheeling diode D1 is grounded. The other end of the first inductor L1 is connected to one end of the second capacitor C2, as well as the voice recognition unit and the lighting mode switching unit. The other end of the second capacitor C2 is grounded. In this invention, a first capacitor C1 and a reverse connection protection diode D0 are also provided at the input terminal of the buck DC-DC converter chip U3. The cathode of the reverse connection protection diode D0, one end of the first capacitor, and the input terminal of the buck DC-DC converter chip U3 are connected in parallel to the output terminal of the DC voltage. The anode of the reverse connection protection diode D0 and the other end of the first capacitor C1 are grounded.

[0022] In this invention, a 30V DC voltage is used. When voltage is applied to the input terminal of the buck DC-DC converter chip U3, the chip reduces the 30V voltage to a 5V output voltage. The current through the first inductor L1 increases linearly, simultaneously charging the first capacitor C1 and providing operating voltage for the pickup unit and voice recognition unit. When the 30V voltage supplied to the input terminal of the buck DC-DC converter chip U3 is cut off, the energy stored in the first inductor L1 discharges through the freewheeling diode D1, the current in the first inductor L1 decreases linearly, and the output voltage discharges through the first capacitor C1. In this invention, the buck DC-DC converter chip U3 converts high-voltage DC to low-voltage DC, and the freewheeling diode D1, the first inductor L1, and the second capacitor C2 meet the needs of the voice recognition unit and the lighting mode switching unit.

[0023] The pickup unit includes the pickup component MI, the 53rd resistor R53, the 54th resistor R54, and the 55th capacitor.

[0024] C55, capacitor C56 (56th), capacitor C57 (57th), resistors R51 (51st) and R52 (52nd) for interference suppression, resistor R53 (53rd), and one end of capacitor C56 (56th) are connected in parallel to the microphone MI. The other end of resistor R53 (53rd) is connected to one end of capacitor C55 (55th), and the other end of capacitor C55 (55th) is grounded. The other end of capacitor C56 (56th) is connected to one end of resistor R51 (51st), and the other end of resistor R51 (51st) is connected to the voice recognition unit. Resistor R54 (54th) and capacitor C57 (57th) are connected in parallel to the microphone MI. The other end of resistor R54 (54th) is grounded. The other end of capacitor C57 (57th) is connected to one end of resistor R52 (52nd), and the other end of resistor R52 (52nd) is connected to the voice recognition unit.

[0025] In this embodiment, the sound pickup unit MI picks up and outputs two voice signals. The two voice signals are converted from current signals to voltage signals through resistors R53 (53rd) and R54 (54th), respectively. One voltage signal is provided to the voice recognition unit after harmonic elimination by capacitor C56 (56th) and resistor R51 (51st), and the other voltage signal is provided to the voice recognition unit after harmonic elimination by capacitor C57 (57th) and resistor R52 (52nd). The two voltage signals are coupled within the voice recognition unit.

[0026] The voice recognition unit is used to parse voice signals and output command signals. The voice recognition unit is electrically connected to the pickup unit. The voice recognition unit includes an anti-interference capacitor C6C, a first current-limiting resistor R50, a first filter capacitor C50, a voice recognition chip U1, a second filter capacitor C52, a third filter capacitor C53, and a fourth filter capacitor C54. One end of the anti-interference capacitor C6C and one end of the first current-limiting resistor R50 are connected in parallel to the other end of the first inductor L1. The other end of the first current-limiting resistor R50 and one end of the first filter capacitor C50 are connected in parallel to the second pin of the voice recognition chip U1. One end of the second filter capacitor C52 is connected to the fourth pin of the voice recognition chip U1. One end of the third filter capacitor C53 is connected to the first pin of the voice recognition chip U1. One end of the fourth filter capacitor C54 is connected to the eleventh pin of the voice recognition chip U1. The other ends of the anti-interference capacitor C6C, the first filter capacitor C50, the second filter capacitor C52, the third filter capacitor C53, and the fourth filter capacitor C54 are all grounded. Pin 9 of the voice recognition chip U1 is an output terminal, which is connected to the light-up mode switching unit. The other end of resistor R51 (fifty-first) is connected to pin 13 of the voice recognition chip U1, and the other end of resistor R52 (fifty-second) is connected to pin 12 of the voice recognition chip U1.

[0027] The lighting mode switching unit parses the command signal provided by the voice recognition unit and generates a lighting mode signal. The lighting mode switching unit is electrically connected to the voice recognition unit. The lighting mode switching unit includes a second current-limiting resistor R41, a sixth filter capacitor C6B, a lighting mode control chip U2, and a crystal oscillator XL1. One end of the second current-limiting resistor R41 is connected to the other end of the first inductor L1. The other end of the second current-limiting resistor R41 and one end of the sixth filter capacitor C6B are connected in parallel to the first pin of the lighting mode control chip U2. The other end of the sixth filter capacitor C6B is grounded. One end of the crystal oscillator XL1 is connected to the second pin of the lighting mode control chip U2. The other end of the crystal oscillator XL1 is connected to the first pin of the lighting mode control chip U2. The fourth pin of the lighting mode control chip U2 is connected to the voice recognition unit. The sixth and seventh pins of the lighting mode control chip U2 are respectively connected to the switching unit.

[0028] The lighting mode switching unit also includes a push-button switch SW1, an eighteenth resistor R18, a nineteenth resistor R19, and an indicator light LED1. One end of the push-button switch SW1 and one end of the eighteenth resistor R18 are connected in parallel to the fifth pin of the lighting mode control chip U2. The other end of the push-button switch SW1 is connected to one end of the nineteenth resistor R19, and the other end of the eighteenth resistor R18 is connected to one end of the indicator light LED1. The other ends of the nineteenth resistor R19 and the indicator light LED1 are both grounded. Briefly activating the push-button switch SW1 sends a lighting mode switching command to the lighting mode control chip U2. Activating the push-button switch SW1 for a long time sends a control command to the lighting mode control chip U2 to make the lamp operate on a timed basis. Timed operation is existing technology and will not be described in detail here.

[0029] Switching unit A is electrically connected to lighting mode switching unit, and the lamp is electrically connected to the output terminal of switching unit A. Switching unit A is controlled by lighting mode signal to turn on and off, thereby generating duty cycle electrical signal, which causes the lamp connected to the output terminal of switching unit A to produce a lighting effect corresponding to the duty cycle signal. The structure of switching unit A is existing technology and will not be described in detail here.

[0030] The voice recognition chip U1 has a built-in voice parsing program. After parsing the voice, the voice recognition chip U1 outputs a string of codes as command signals. Different codes represent different operating modes. The lighting mode control chip U2 stores multiple lighting mode control programs. After receiving the corresponding code, the lighting mode control chip U2 calls the lighting mode control program that matches the code, thereby generating a lighting mode control command. The lighting mode control command is output to the switching unit A, causing the switching unit A to generate a duty cycle signal, which in turn causes the lamps connected to the output terminal of the switching unit A to produce a lighting effect corresponding to the duty cycle signal.

[0031] like Figure 2 As shown, this circuit is similar to... Figure 1 The first type of offline voice-controlled lighting system shown differs in that it also includes a memory unit for recording the lighting mode control commands currently output by the lighting mode switching unit. The memory unit is electrically connected to the lighting mode switching unit. The memory unit includes a storage chip U4 and a filter capacitor C6D. The first to fourth pins of the storage chip U4 are all grounded. The fifth pin of the storage chip U4 is connected to the sixth pin of the lighting mode control chip U2. The sixth pin of the storage chip U4 is connected to the seventh pin of the lighting mode control chip U2. The seventh pin of the storage chip U4 is grounded. The eighth pin of the storage chip U4 is connected to one end of the filter capacitor C6D, and the other end of the filter capacitor C6D is grounded.

[0032] During operation, the storage chip U4 acquires and stores the current lighting mode control command output by the lighting mode control chip U2. When the 30V DC voltage is cut off, the current lighting mode control command output by the lighting mode control chip U2 is stored in the storage chip U4. When the system is powered on, the lighting mode control chip U2 directly reads the lighting mode control command stored in the storage chip U4 and uses the lighting mode control command as an output signal to control the load operation.

[0033] like Figure 3 As shown, this circuit is similar to... Figure 1 The first offline voice-controlled lighting system shown differs in that: the pickup unit includes a pickup component MI, a 53rd resistor R53, a 54th resistor R54, a 55th resistor R55, a 55th capacitor C55, a 56th capacitor C56, and a 57th capacitor C57; one end of the 53rd resistor R53 and the 57th capacitor C57 are connected in parallel to the pickup component MI; one end of the 55th resistor R55 and the 55th capacitor C57 are respectively connected to the other end of the 53rd resistor R53; the other end of the 55th resistor R55 is connected to the voice recognition unit; and the 55th capacitor...

[0034] The other end of C55 is grounded; one end of the fifty-fourth resistor R54 and the fifty-sixth capacitor C56 are connected in parallel to the pickup component MI, the other end of the fifty-fourth resistor R54 is grounded, and the other end of the fifty-seventh capacitor C57 is connected to the voice recognition unit.

[0035] like Figure 4 As shown, this circuit is similar to... Figure 1The first offline voice-controlled lighting system shown differs in that the lighting mode switching unit includes a second current-limiting resistor R41, a sixth filter capacitor C6B, a Zener diode ZD1, a fourth filter capacitor C4, and a lighting mode control chip U2. One end of the second current-limiting resistor R41 is connected to the other end of the first inductor L1. The other end of the second current-limiting resistor R41, along with one end of the sixth filter capacitor C6B, the Zener diode ZD1, and the fourth filter capacitor C4, are connected in parallel to the first pin of the lighting mode control chip U2. The other ends of the sixth filter capacitor C6B, the Zener diode ZD1, and the fourth filter capacitor C4 are grounded. The Zener diode ZD1 helps stabilize the voltage supplied to the lighting mode control chip U2, and the fourth filter capacitor C4 filters out interference signals in the voltage. The fifth pin of the lighting mode control chip U2 is connected to the voice recognition unit, and the fourth pin of the lighting mode control chip U2 is connected to the switching unit A. The switching unit A includes a fourth resistor R4, a tenth resistor R10, and a transistor Q1. One end of the fourth resistor R4 is connected to the fourth pin of the lighting mode control chip U2, and the other end of the fourth resistor R4 is connected to the first pin of the transistor Q1 and one end of the tenth resistor R10. The second pin of the transistor Q1 and the other end of the tenth resistor R10 are grounded. The transistor Q1 is a MOSFET or a triode.

[0036] Based on the above methods, the input terminal of each circuit can be connected to a power converter. The power converter can be an AC to DC power converter or a DC to DC power converter. For example, 220V or 110V AC power can be converted to 30V or other low voltage (e.g., 24V or 12V) DC power, or 48V DC power can be converted to 30V or other low voltage (e.g., 24V or 12V) DC power.

Claims

1. Offline voice-controlled lighting system, including: A pickup unit that captures user speech signals; A speech recognition unit is used to analyze speech signals and output command signals. The speech recognition unit is electrically connected to the pickup unit. A lighting mode switching unit that parses the instruction signal provided by the voice recognition unit to generate a lighting mode signal is electrically connected to the voice recognition unit. A switching unit (A) that is turned on and off by a lighting mode signal is electrically connected to a lighting mode switching unit. The device is characterized by further including a step-down DC power converter chip (U3), a freewheeling diode (D1), a first inductor (L1) for energy storage, and a second capacitor (C2). The output terminal of the step-down DC power converter chip (U3) is connected to the cathode of the freewheeling diode (D1) and one end of the first inductor (L1), respectively. The anode of the freewheeling diode (D1) is grounded. The other end of the first inductor (L1) is connected to one end of the second capacitor (C2) and the voice recognition unit and the lighting mode switching unit, respectively. The other end of the second capacitor (C2) is grounded.

2. The offline voice-controlled lighting system according to claim 1, characterized in that, The pickup unit includes a pickup component (MI), a 53rd resistor (R53), a 54th resistor (R54), a 55th capacitor (C55), a 56th capacitor (C56), a 57th capacitor (C57), a 51st resistor (R51) and a 52nd resistor (R52) for interference suppression. One end of the 53rd resistor (R53) and the 56th capacitor (C56) are connected in parallel to the pickup unit (MI). The other end of the 53rd resistor (R53) is connected to one end of the 55th capacitor (C55). The other end of the 55th capacitor (C55) is grounded. The other end of the 56th capacitor (C56) is connected to one end of the 51st resistor (R51). The other end of the 51st resistor (R51) is connected to the voice recognition unit. One end of the 54th resistor (R54) and the 57th capacitor (C57) are connected in parallel to the pickup unit (MI), the other end of the 54th resistor (R54) is grounded, the other end of the 57th capacitor (C57) is connected to one end of the 52nd resistor (R52), and the other end of the 52nd resistor (R52) is connected to the voice recognition unit.

3. The offline voice-controlled lighting system according to claim 1, characterized in that, The voice recognition unit includes an anti-interference capacitor (C6C), a first current-limiting resistor (R50), a first filter capacitor (C50), a voice recognition chip (U1), a second filter capacitor (C52), a third filter capacitor (C53), and a fourth filter capacitor (C54). One end of the anti-interference capacitor (C6C) and the first current-limiting resistor (R50) are connected in parallel to the other end of the first inductor (L1). The other end of the first current-limiting resistor (R50) and one end of the first filter capacitor (C50) are connected in parallel to the second pin of the voice recognition chip (U1). One end of the second filter capacitor (C52) is connected to the fourth pin of the voice recognition chip (U1). One end of the third filter capacitor (C53) is connected to the first pin of the voice recognition chip (U1). One end of the fourth filter capacitor (C54) is connected to the eleventh pin of the voice recognition chip (U1). The other ends of the anti-interference capacitor (C6C), the first filter capacitor (C50), the second filter capacitor (C52), the third filter capacitor (C53), and the fourth filter capacitor (C54) are all grounded.

4. The offline voice-controlled lighting system according to claim 1, characterized in that, The lighting mode switching unit includes a second current-limiting resistor (R41), a sixth filter capacitor (C6B), a lighting mode control chip (U2), and a crystal oscillator (XL1). One end of the second current-limiting resistor (R41) is connected to the other end of the first inductor (L1). The other end of the second current-limiting resistor (R41) and one end of the sixth filter capacitor (C6B) are connected in parallel to the first pin of the lighting mode control chip (U2). One end of the crystal oscillator (XL1) is connected to the second pin of the lighting mode control chip (U2), and the other end of the crystal oscillator (XL1) is connected to the first pin of the lighting mode control chip (U2). The fourth pin of the lighting mode control chip (U2) is connected to the voice recognition unit, and the sixth and seventh pins of the lighting mode control chip (U2) are connected to the switching unit, respectively.

5. The offline voice-controlled lighting system according to claim 4, characterized in that, The lighting mode switching unit also includes a push-button switch (SW1), an eighteenth resistor (R18), a nineteenth resistor (R19), and an indicator light (LED1). One end of the push-button switch (SW1) and the eighteenth resistor (R18) are connected in parallel to the fifth pin of the lighting mode control chip (U2). The other end of the push-button switch (SW1) is connected to one end of the nineteenth resistor (R19), and the other end of the eighteenth resistor (R18) is connected to one end of the indicator light (LED1). The other ends of the nineteenth resistor (R19) and the indicator light (LED1) are both grounded.

6. The offline voice-controlled lighting system according to claim 1, characterized in that, It also includes a memory unit for recording the lighting mode control commands currently output by the lighting mode switching unit, and the memory unit is electrically connected to the lighting mode switching unit.

7. The offline voice-controlled lighting system according to claim 1, characterized in that, The pickup unit includes a pickup component (MI), a 53rd resistor (R53), a 54th resistor (R54), a 55th resistor (R55), a 55th capacitor (C55), a 56th capacitor (C56), and a 57th capacitor (C57); One end of the 53rd resistor (R53) and the 57th capacitor (C57) are connected in parallel to the pickup unit (MI). One end of the 55th resistor (R55) and the 55th capacitor (C55) are respectively connected to the other end of the 53rd resistor (R53). The other end of the 55th resistor (R55) is connected to the voice recognition unit. The other end of the 55th capacitor (C55) is grounded. One end of the 54th resistor (R54) and the 56th capacitor (C56) are connected in parallel to the pickup unit (MI), the other end of the 54th resistor (R54) is grounded, and the other end of the 57th capacitor (C57) is connected to the voice recognition unit.

8. The offline voice-controlled lighting system according to claim 1, characterized in that, The lighting mode switching unit includes a second current-limiting resistor (R41), a sixth filter capacitor (C6B), a Zener diode (ZD1), a fourth filter capacitor (C4), and a lighting mode control chip (U2). One end of the second current-limiting resistor (R41) is connected to the other end of the first inductor (L1). The other end of the second current-limiting resistor (R41) and one end of the sixth filter capacitor (C6B), the Zener diode (ZD1), and the fourth filter capacitor (C4) are connected in parallel to the first pin of the lighting mode control chip (U2). The other ends of the sixth filter capacitor (C6B), the Zener diode (ZD1), and the fourth filter capacitor (C4) are grounded. The fifth pin of the lighting mode control chip (U2) is connected to the voice recognition unit, and the fourth pin of the lighting mode control chip (U2) is connected to the switch unit (A).

9. The offline voice-controlled lighting system according to claim 1, characterized in that, The switching unit (A) includes a fourth resistor (R4), a tenth resistor (R10), and a transistor (Q1). One end of the fourth resistor (R4) is connected to the lighting mode control chip (U2), and the other end of the fourth resistor (R4) is connected to the first pin of the transistor (Q1) and one end of the tenth resistor (R10). The second pin of the transistor (Q1) and the other end of the tenth resistor (R10) are grounded.

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