CN110708798A

CN110708798A - Intelligent desk lamp system based on module identification

Info

Publication number: CN110708798A
Application number: CN201911117147.8A
Authority: CN
Inventors: 祝明; 于天河
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-01-17

Abstract

An intelligent desk lamp system based on module identification belongs to the technical field of intelligent equipment. The invention provides an intelligent desk lamp system with voice recognition, human body infrared induction and photosensitive detection functions, which has the characteristics of simple operation, low cost and suitability for mass production. The intelligent desk lamp system comprises a main control module, a voice recognition module, a human body infrared induction module, a photosensitive detection module, an LED driving module and a power supply module. In the invention, after the power supply is switched on with 220V alternating current, a voice command is given within a certain range from the desk lamp, the desk lamp is turned on, and the desk lamp can automatically light up; when the lamp is turned off, the desk lamp can be automatically turned off; the desk lamp keeps a state 15 seconds after the last voice command is issued, whether a person approaches the desk lamp or not is recognized after 15 seconds, if the person approaches the desk lamp and the ambient light does not reach a brightness threshold value, the desk lamp is started, and the background lamp is automatically turned off when the person walks; if the ambient light exceeds the threshold value, the desk lamp keeps a turned-off standby state and waits for the next instruction to be issued.

Description

Intelligent desk lamp system based on module identification

Technical Field

The invention belongs to the technical field of intelligent equipment, and particularly relates to an intelligent desk lamp system with module identification.

Background

In the aspect of the application to the desk lamp, except satisfying normal illumination function, modern, the intellectuality of desk lamp is more and more received consumer's favor, and traditional desk lamp functional structure is single, and the light source is given first place to incandescent lamp, fluorescent lamp, and dangers such as electric leakage appear easily in the use of this type of desk lamp to it is great to the consumption of energy, and life is shorter, the daily use of being not convenient for. In addition, the stroboscopic effect of incandescent and fluorescent lamps is very harmful to the human eye when used for a long time. In the later stage, in order to solve the problems of energy consumption, stroboflash and the like, a table lamp using an LED as a light source has the characteristics of high lighting effect, low working voltage, low energy consumption, no radiation, long service life and the like, but most of table lamps in the market have single functions, can be simply turned on and off manually, and can be manually adjusted to have several grades of brightness.

In intelligent angle, generally adopt pyroelectric sensor, when someone is close the desk lamp, the desk lamp is lighted automatically, but this kind of mode easily receives various heat source light source interference, when ambient temperature is close with human body temperature, causes the short-term malfunctioning easily, does not accord with masses' demand.

Disclosure of Invention

Aiming at the defects of single function, poor intelligent effect, complex design, high cost and the like of the existing desk lamp, the invention provides an intelligent desk lamp system which is more intelligent, has low cost and better meets the requirements of most consumers.

The invention relates to an intelligent desk lamp system based on module identification, which has the technical scheme that:

the invention relates to an intelligent desk lamp system based on module identification, wherein a hardware part of the intelligent desk lamp system comprises the following modules: the device comprises a main control module, a voice recognition module, a human body infrared sensing module, a photosensitive detection module, an LED driving module and a power supply module. The voice recognition module is carried on the main control module, the main control module adopts a single chip microcomputer system, 20I/O ports of the single chip microcomputers P0.0-P2.7 are used for being connected with LD3320 of the voice recognition module, an I/O port P2.4 is connected with an OUT port of the human infrared module, a P2.5 is connected with a DO output port of the photosensitive detection module, a P1.2 is connected with the LED driving module, and 3.3V, 5V, GND, RXD and TXD ports of the power supply module are respectively connected with the five ports on the main control module.

The desk lamp adopts an STC11L08XE single-chip microcomputer as a main control module, the single-chip microcomputer controls a voice recognition module, a human body infrared induction module, a photosensitive detection module and an LED driving module, and a USB-to-TTL downloader is used as a power supply module to supply power for other modules. The singlechip of the main control module is used as a driving chip of the voice module, and the space utilization efficiency is increased to a certain extent. The voice signal processing chip adopts LD3320 to collect and process the voice signal. The human body infrared induction adopts an HC-SR501 module, which is based on the infrared technology and adopts the probe design of LHI778, and a detachable lens is arranged on the HC-SR501 module, which has the function of increasing the induction distance of the probe and can be adjusted according to the design requirement. The module is provided with a BISS0001 chip, is an integrated circuit capable of processing sensing signals quickly, is provided with a bidirectional amplitude discriminator and can efficiently restrain various interferences. The photosensitive detection module comprises an LM393 voltage comparison chip, a photosensitive diode and a sensitivity adjusting potentiometer. The LED driving module is formed by connecting a plurality of LEDs in parallel and is used as an illumination part of the desk lamp. The power module is provided with a CH340T chip and is used for switching a USB port, and when a 220V alternating current power supply is used for supplying power, the power module can convert the power into 5V direct current used by each module.

The software uses a singlechip programming language to perform voice setting on the voice module according to the needs of a user, sets the light-on instruction as voice light-on, sets the light-off instruction as voice light-off, and can drive the human body infrared sensing module, the photosensitive detection module and the LED driving module to cooperatively work, when a person appears, the ambient light is automatically detected, and the LED is enabled to be on.

Based on the intelligent desk lamp system based on module identification, the intelligent desk lamp system based on module identification comprises the following steps:

the method comprises the following steps: and the USB extension line is used for extending the USB end of the power supply module.

Step two: the other end of the extension line is connected with a power adapter, and the power adapter is plugged into a 220V household power supply.

Step three: when someone says 'turn on the light', the voice module detects the sound, gives a signal to the single chip microcomputer, and drives the LED to light; after the voice module detects the sound of turning off the lamp, the voice module also gives a signal to the single chip microcomputer to drive the LED to be turned off.

Step four: when a person appears in the radiation range of the human body infrared sensing module, the module transmits a signal to the single chip microcomputer, and the photosensitive detection module starts to detect ambient light.

Step five: if the ambient light does not reach the set brightness threshold, the photosensitive detection module gives a signal to the single chip microcomputer to drive the LED to be started, and the LED is kept in a started state all the time during the stay of people; if the ambient light exceeds the brightness threshold, the LED remains off in a standby state.

Step six: when a person leaves the radiation range of the human body infrared induction module, the module transmits a signal to the single chip microcomputer, so that the LED standing horse is turned off.

The invention has the beneficial effects that: the utility model provides an intelligence desk lamp system based on module identification carries out the improvement in the function with traditional desk lamp, makes people break away from the restriction that can just go on to turn on the light and turn off the light operation to the desk lamp touching, through pronunciation and human infrared detection, under people and desk lamp have certain spatial distance's the condition, makes the desk lamp serve for people to a more convenient mode. This intelligence desk lamp has fully simplified people's operation, especially under dim circumstances of ambient light, is favorable to old man, child and the inconvenient person's of action use more. And this intelligence desk lamp has advantages such as life is longer, low cost, more is applicable to large batch production and popularization.

Drawings

FIG. 1 is a block diagram of an intelligent desk lamp system;

FIG. 2 is a circuit diagram of an intelligent desk lamp system;

FIG. 3 is a schematic diagram of a speech recognition module;

FIG. 4 is a schematic diagram of a human body infrared sensing module;

FIG. 5 is a schematic diagram of a photosensitive detection module;

FIG. 6 is a schematic diagram of an LED driver module;

fig. 7 is a schematic diagram of a power module.

Detailed Description

The technical solutions of the present invention are further described below with reference to the following examples, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Example 1

The embodiment is described with reference to fig. 1, and in this embodiment, the intelligent desk lamp system based on module identification according to this embodiment includes a main control module 1, a voice recognition module 2, a human body infrared sensing module 3, a photosensitive detection module 4, an LED driving module 5, and a power supply module 6. The voice recognition module 2 is carried on the main control module 1, the main control module 1 adopts a single chip microcomputer system, and 20I/O ports of the single chip microcomputer P0.0-P2.7 are used for being connected with the LD3320 of the voice recognition module 2.

Example 2

As shown in fig. 2, in the whole circuit of the system, an idle I/O port P2.4 of the single chip microcomputer is connected to an OUT output port of the human body infrared sensing module 3; p2.5 is connected with a digital quantity output port DO of the photosensitive detection module 4, P1.2 is connected with a single chip microcomputer control end of the LED driving module 5, and 3.3V, 5V, GND, RXD and TXD ports of the power supply module 6 are connected with the port of the main control module 1, so that the whole intelligent desk lamp system is formed.

The main control module 1 adopts an STC11L08XE singlechip which comprises an enhanced 8051 kernel, the information processing speed is 8-12 times of that of the ordinary 8051, the singlechip is integrated on the voice module, and the voice module 2 collects and processes voice signals to obtain instructions of corresponding level changes so as to drive the LED module 5.

As shown in fig. 3, the I/O port of the voice module 2 is connected to each pin of the LD3320, and then an external circuit is formed by adding corresponding resistance-capacitance elements, so as to obtain a complete LD3320 voice recognition module. The voice recognition module has high integration level and high intelligence, wherein the loaded LD3320 voice recognition processing chip is a core device of the module, the LD3320 can flexibly edit and recognize key words, 50 candidate key words can be set at most each time, each key word can be a single character, a phrase or a short sentence, and the length of each key word cannot exceed 10 Chinese characters or 79-byte letters.

As shown in fig. 4, in the human body infrared sensing module 3, L is an unrepeatable triggering port; h is a repeatable triggering port; PIR is the sensing lens part of the module, RT is the temperature compensation resistance, when the ambient temperature rises to 30-32 ℃, the sensing distance of the module will be slightly shortened, and the temperature compensation can carry out certain performance compensation. After the sensing probe is provided with the lens, the sensing distance can be increased by 5-7 m, the human body sensing module 3 is provided with two potentiometers which are respectively used for adjusting the sensing distance and sensing time length, when the sensing distance needs to be adjusted, the sensing distance is increased by rotating the distance potentiometers clockwise, the farthest distance can reach 7 m, otherwise, the sensing distance is reduced, and the nearest distance can reach 3 m. If the induction duration is adjusted, the time delay potentiometer needs to be adjusted in a clockwise rotating mode, the induction time delay is prolonged, the longest time can reach 300S, otherwise, the induction time delay is shortened, and the shortest time is 0.5S.

As shown in fig. 5, the photosensitive detection module 4 circuit includes an LM393 voltage comparison chip, a photodiode, a sensitivity adjustment potentiometer, an LED, a pin bank, and some resistance-capacitance elements, where the LM393 is a dual voltage comparator integrated circuit chip whose output load resistance can be connected to any voltage within the allowable power supply voltage range, and is not limited by the voltage value at the VCC terminal. The output can act as a simpler SPS open circuit to ground, with the sink current at the output limited to some extent by the possible drive or device beta values available. When a limit current is reached, the output transistor will be pulled out, in which case the output voltage will also rise rapidly. When the ambient light brightness detected by the module does not reach the threshold value, the digital output end DO outputs a high level, and when the ambient light brightness is greater than the set threshold value, the DO outputs a low level; wherein, the DO output end is connected with the singlechip of the main control module 1, and the singlechip is used for detecting high and low levels.

As shown in fig. 6, the circuit of the LED driving module 5 is a 5mm straw hat white light direct-insert LED, which is composed of five LEDs, five 220 ohm resistors, a 1 kiloohm resistor, a 3.9 kiloohm resistor and an NPN type triode C9013, and environmental information is collected by the voice module 2, the human body infrared sensing module 3 and the photosensitive detection module 4, so as to realize the on-off control of the LED by the single chip microcomputer.

As shown in fig. 7, when the power module 6 uses a USB to TTL downloader and uses a 5V operating voltage, the VCC pin of the CH340T chip inputs an external 5V power, and the V3 pin is externally connected to a power decoupling capacitor with a capacity of 0.01 UF; when the 3.3V operating voltage is used, the V3 pin of the CH340T chip is connected to the VCC pin. The power supply of the household voltage for the desk lamp can be realized by only using a USB extension line and a power adapter for converting 220V alternating current into 5V direct current.

Example 3

The present example is described with reference to example 1, and in the present example, the present example relates to an intelligent desk lamp system based on module identification, which includes the following steps:

the method comprises the following steps: the USB end of the power module 6 is extended using a USB extension cord.

Step three: when someone says 'turn on the light', the voice module 2 detects the sound, gives a signal to the single chip microcomputer, and drives the LED to light; after the voice module 2 detects the sound of turning off the lamp, a signal is also given to the single chip microcomputer to drive the LED to be turned off.

Step four: when a person appears in the radiation range of the human body infrared sensing module 3, the module transmits a signal to the single chip microcomputer, and the photosensitive detection module 4 starts to detect the ambient light.

Step five: if the ambient light does not reach the set brightness threshold, the photosensitive detection module 4 gives a signal to the single chip microcomputer to drive the LED to be turned on, and the LED is kept in a turned-on state all the time during the stay of people; if the ambient light exceeds the brightness threshold, the LED remains off in a standby state.

Step six: when a person leaves the radiation range of the human body infrared induction module 3, the module transmits a signal to the single chip microcomputer, so that the LED standing horse is extinguished and kept in a standby state.

Claims

1. The utility model provides an intelligence desk lamp system based on module identification, its characterized in that, it includes main control module 1, speech recognition module 2, human infrared induction module 3, photosensitive detection module 4, LED drive module 5, power module 6, speech recognition module 2 carry on main control module 1, main control module 1 adopts single chip microcomputer system, 20 IO mouths of singlechip P0.0-P2.7 are used for linking to each other with LD3320 of speech recognition module 2, IO mouth P2.4 connects the OUT port of human infrared induction module 3, P2.5 connects the DO output port of photosensitive detection module 4, P1.2 connects LED drive module, power module's 3.3V, 5V, GND, RXD, TXD port links to each other with these five ports on the main control module respectively.

2. The intelligent desk lamp system based on module identification as claimed in claim 1, wherein the desk lamp adopts STC11L08XE single chip microcomputer as main control module 1, the single chip microcomputer controls voice identification module 2, human body infrared induction module 3, photosensitive detection module 4 and LED drive module 5, and USB-to-TTL downloader is used as power supply module 6 to supply power to other modules; the singlechip of the main control module 1 is used as a driving chip of the voice module 2, so that the space utilization efficiency is increased to a certain extent; the voice signal processing chip adopts LD3320 to collect and process the voice signal; the human body infrared sensing module 3 adopts an HC-SR501 module, which is based on an infrared technology and adopts an LHI778 probe design, and a BISS0001 chip is carried on the module, is an integrated circuit capable of processing sensing signals quickly, is provided with a bidirectional amplitude discriminator and can efficiently restrain various interferences; the photosensitive detection module 4 comprises an LM393 voltage comparison chip, a photosensitive diode and a sensitivity adjusting potentiometer; the LED driving module 5 is formed by connecting a plurality of LEDs in parallel and is used as an illuminating part of the desk lamp; the power module 6 is provided with a CH340T chip and is used for switching a USB port, and when a 220V alternating current power supply is used for supplying power, the power module can convert the power into 5V direct current used by each module.

3. The intelligent desk lamp system based on module identification as claimed in claim 1, characterized in that it comprises the following steps:

the method comprises the following steps: the USB end of the power module 6 is extended by using a USB extension line;

step two: connecting the other end of the extension line with a power adapter, and inserting the power adapter into a 220V household power supply;

step three: when someone says 'turn on the light', the voice module 2 detects the sound, gives a signal to the single chip microcomputer, and drives the LED to light; after the voice module 2 detects the sound of turning off the lamp, a signal is also given to the single chip microcomputer to drive the LED to be turned off;

step four: when a person appears in the radiation range of the human body infrared sensing module 3, the module transmits a signal to the single chip microcomputer, and the photosensitive detection module 4 starts to detect ambient light;

step five: if the ambient light does not reach the set brightness threshold, the photosensitive detection module 4 gives a signal to the single chip microcomputer to drive the LED to be turned on, and the LED is kept in a turned-on state all the time during the stay of people; if the ambient light exceeds the brightness threshold, the LED keeps a turned-off standby state;