CN211152275U - Wireless induction device for night lamp of mattress - Google Patents
Wireless induction device for night lamp of mattress Download PDFInfo
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- CN211152275U CN211152275U CN201922086827.XU CN201922086827U CN211152275U CN 211152275 U CN211152275 U CN 211152275U CN 201922086827 U CN201922086827 U CN 201922086827U CN 211152275 U CN211152275 U CN 211152275U
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Abstract
The utility model discloses a mattress night-light wireless induction system, its characterized in that: comprises a human body state sensing unit and an intelligent night lamp control unit; the human body state sensing unit comprises a single chip microcomputer, an array type pressure sensor, a multiplexer, a wireless transceiving module and a power supply module; intelligence night-light control unit has included singlechip, luminance detection module, CO2The intelligent night lamp comprises a detection module, an L CD display module, a relay module and a power module, wherein the wireless emission module sends a night lamp opening and closing signal to the intelligent night lamp control unit, the single chip microcomputer controls the relay to open and close the night lamp, a plurality of pressure sensor units arranged in a matrix form are arranged on a mattress, and the wireless radio frequency module and the intelligent night lamp are connected through the wireless radio frequency moduleThe wireless communication between the control units is used for controlling the night lamp to be turned on, and the response speed is high; the intelligent night lamp control unit can be arranged at any reasonable position in a bedroom; built-in CO2The detection module can detect indoor CO when people get up at night2Concentration values.
Description
Technical Field
The utility model relates to a night-light wireless induction system especially relates to a mattress night-light wireless induction system.
Background
The existing bedroom lamp needs to be manually turned on and off, timely illumination is difficult to provide for people getting up at night, and the strong light change during turning on the lamp easily stimulates optic nerves to influence drowsiness. The switch operation is realized through the response to sound or motion human body mostly to current night-light induction system, though satisfied the illumination needs of people when getting up night to a certain extent, has also ignored some important problems, for example: night lamps lack intelligence and cannot control the duration of lighting according to the actual requirements of users; the sound-controlled night lamp is greatly interfered by surrounding noise, so that the condition of false triggering is easily caused; light-operated night lights can be turned on in low light conditions and turned off in high light conditions, but long-term turning on can also result in waste of electrical energy. These problems make traditional night-light can't satisfy people and get up the actual demand of in time illumination night, also can not the rational utilization electric energy.
The night light device based on pyroelectric infrared sensing can achieve human body sensing at night without a light source, the principle is that a pyroelectric infrared sensing technology is utilized, a human body movement rate signal is amplified through a Fresnel lens to improve sensitivity, the night light can be automatically turned on when a human body passes through a sensing area, the sensing angle of the lamp is about 120 degrees, if the human body always moves in the sensing area, the night light can be kept in an on state, the pyroelectric infrared sensor easily receives interference of an external infrared light source, the sensing night light is mistakenly triggered, meanwhile, the Fresnel lens needs to be externally arranged, the Fresnel lens is easy to age when the appearance is attractive, the device is not suitable to be arranged in an environment with the temperature exceeding 30 ℃, and the usage of the pyroelectric infrared sensing technology in the night light is limited, the usage of a smart mini lamp (information, No.29, pp 734-25) is limited, the smart mini lamp is not suitable for being arranged in a night light source, and the smart bed mattress is not suitable for a smart bed with a night light sensing bed lighting device capable of a night light source capable of providing a night light source for shielding effect, and a night light source for a smart bed for a night light induction, a smart bed capable of providing a smart night light source for people to pass through a smart bed lighting technology for a smart bed induction, a smart bed lighting technology for a smart night light induction, a smart bed lighting technology for a hospital, a hospital bed, a hospital, a.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problems existing in the prior art, the utility model provides a wireless induction device for a night lamp of a mattress.
The technical scheme is as follows: the utility model comprises a human body state induction unit and an intelligent night lamp control unit; the human body state sensing unit comprises a single chip microcomputer, an array type pressure sensor, a multiplexer, a wireless transceiving module and a power supply module; intelligence night-light control unit has included singlechip, luminance detection module, CO2The intelligent night lamp control unit comprises a detection module, an L CD display module, a relay module and a power module, wherein the wireless emission module sends night lamp opening and closing signals to the intelligent night lamp control unit, and the single chip microcomputer controls the relay to open and close the night lamp.
The array pressure sensor is arranged on the mattress and consists of a plurality of pressure sensor units and a multiplexer, the pressure sensor units are arranged in a matrix form and are connected to an IO port of the single chip microcomputer through the multiplexer, and the single chip microcomputer sequentially reads pressure information output by each pressure sensor in a time-sharing manner; the brightness detection module detects the intensity of ambient light, and the single chip microcomputer sends an opening/closing scanning request to the human body state sensing unit through the wireless transceiving module; the CO is2Detection module detects CO in environment2Concentration, CO is displayed on the screen of the L CD display module2Concentration information; the intelligent night lamp control unit is installed at any reasonable position in a bedroom.
Has the advantages that: compared with the prior art, the utility model discloses arrange the pressure sensor unit that a plurality of matrix forms were arranged on the mattress, utilize window algorithm to calculate the effective lifting surface area of mattress and detect the user and stand up and lie two kinds of states. When the user is judged to get up, the wireless communication between the wireless radio frequency module and the intelligent night lamp control unit is used for controlling the night lamp to be started,the response speed is high; the night lamp can be started in time when people get up at night, so that the night lamp is convenient for the people to move at night; simultaneously, adopt wireless connection's mode between human state induction element and the night-light the control unit, intelligence night-light the control unit can install in the arbitrary reasonable position in bedroom for can not influence user's drowsiness when the night-light is opened. In addition, the night lamp control unit is internally provided with a photosensitive sensor, so that the whole device can be in a standby state when the light is sufficient in the daytime, the power consumption is saved, and meanwhile, the built-in CO is used2The detection module can detect indoor CO when people get up at night2The concentration value is displayed to enable the user to be according to CO2And (4) determining whether to start a fresh air system according to the concentration value, and protecting the health of the user.
Drawings
Fig. 1 is a block diagram of the hardware structure of the present invention;
FIG. 2 is a voltage step-down circuit diagram of the present invention for converting 220V to 5V;
FIG. 3 is a voltage step-down circuit diagram of the present invention for converting 5V to 3.3V;
fig. 4 is a circuit diagram of the single-chip microcomputer main control circuit of the human body state sensing unit of the present invention;
fig. 5 is a circuit diagram of the AD conversion module dedicated for HX711 weighing of the present invention;
fig. 6 is a circuit diagram of a pressure sensor array according to the present invention;
fig. 7 is a circuit diagram of a wireless communication module of the human body state sensing unit of the present invention;
fig. 8 is a circuit diagram of the main control circuit of the single chip microcomputer of the intelligent night lamp part of the utility model;
fig. 9 is a circuit of the brightness detection module of the present invention;
FIG. 10 shows CO of the present invention2A detection module circuit diagram;
fig. 11 is a circuit diagram of a wireless communication module of the control unit of the present invention;
fig. 12 is a circuit diagram of an L CD display module according to the present invention;
fig. 13 is a circuit diagram of a relay module according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the drawings and the detailed description.
(1) The human body state sensing unit and the intelligent night light control unit are used in a household bedroom, a 220V alternating current power socket is generally arranged in the bedroom, the human body state sensing unit and the intelligent night light control unit are both powered by a 220V alternating current power supply, a 5V direct current power supply is used for powering a single chip microcomputer, a pressure sensing module, a brightness detection module and other modules, a 220V to 5V voltage reduction circuit is needed to enable the modules to work normally, the voltage reduction circuit is shown in figure 2, J0 is a 220V input voltage interface, F1 is a fuse and is disconnected to protect a circuit when current is overlarge, T1 is a transformer and used for converting 220V of an input end into 9V output, D1-D4 connected behind the transformer is a bridge rectifier circuit formed by four diodes and used for converting 9V alternating current into a power supply into a rectified power supply, voltage fluctuation is large, a 330uF/25V capacitor C1 is connected behind the rectifier circuit to filter voltage, the filter voltage is output, the filter voltage is converted into Vout, the filtered Vout is used for receiving Vout, and is used for receiving GND 64.
Since the operational voltage of the nRF 24L 01 wireless module used in the device is 3.3V, 5V voltage needs to be reduced by L M1117 chip, the voltage reduction circuit diagram is shown in fig. 3, L M1117-3.3V is a voltage stabilization chip for converting 5V voltage into 3.3V voltage for the nRF 24L 01 wireless module to use, Vin pin is a power input port, 5V power is connected, GND is a ground port, and is connected to ground, Vout is a power output port, and 3.3V power after voltage stabilization is output for the wireless module to use, furthermore, capacitors C3 and C4 are connected between the Vout port and GND port of L M1117 chip for filtering the output power.
(2) Set up in the human state induction element circuit of mattress: the human body state sensing unit circuit arranged on the mattress consists of a single chip microcomputer main control circuit, a pressure sensor array circuit and a wireless communication transmitting module circuit. The unit circuit can detect the rising and lying states of a human body and send corresponding switching signals to the intelligent night light control unit.
(2-1) the singlechip main control circuit: the MSP430 single chip microcomputer is used as a main control chip in the human body state sensing unit circuit, is mainly used for receiving and processing pressure information of the pressure sensor array, performs analysis and judgment by using a window algorithm, and sends a corresponding switch signal to the intelligent night light control unit through the wireless transmission module, and a circuit diagram is shown in fig. 4. The XIN and XOUT pins of the MSP430 singlechip are connected with a 32.768KHz crystal oscillator Y2 in a bridging manner, and the crystal oscillator Y2 is used for the singlechip in a standby mode or a low power consumption mode. DVCC is the digital power port, connects the 5V power, and the electric capacity C9 is used for the input power filtering. AVCC is the analog power port, connects the 5V power, and electric capacity C8 is used for the input power filtering. The AVSS is analog ground, internally connected to the DVSS, and the DVSS is digital ground, connected to ground. The RST pin is an external reset port and is connected with an external reset circuit consisting of a key S1, a current limiting resistor R1, a capacitor C7 and a diode D1, and the reset time is determined by the capacitance value of C7. When the button S1 is pressed, a reset pulse is generated, the RST pin is pulled low to generate an external reset, and the diode D5 is used for reverse polarity protection. An 8MHz crystal oscillator Y1 is connected across pins XT2IN and XT2OUT of the single chip microcomputer and is used as an external high-speed crystal oscillator of the single chip microcomputer. The crystal oscillator Y1 and two 30pF frequency stabilizing capacitors C5 and C6 form an external high-frequency clock circuit.
The pressure sensor array circuit comprises a resistance type pressure sensor, a corresponding AD conversion chip, a corresponding module circuit diagram, a digital power supply pin, a capacitor C10, a voltage stabilizing circuit, a voltage regulating power supply pin, a voltage stabilizing circuit, a voltage regulating power supply pin, a voltage stabilizing power supply pin, an output voltage pin, a voltage stabilizing circuit, a voltage output voltage stabilizing circuit, a voltage stabilizing circuit, a voltage output pin, a voltage stabilizing circuit, a voltage output voltage, a voltage output voltage stabilizing circuit, a voltage.
The pressure sensor array is mainly used for collecting pressure information received by a mattress and transmitting data to a single chip microcomputer for analysis, in order to save resources of an IO port of the single chip microcomputer, a multiplexer is used, a circuit diagram is shown in FIG. 6, 8 pressure sensor units are totally arranged in the diagram, each pressure sensor unit consists of 2 resistance strain half-bridge sensors and an HX711AD conversion module, an E + interface and an E-interface are stabilized voltage supply output interfaces and provide power supply input for the sensors, an A-interface and an A + interface are differential input interfaces of the sensors and are used for receiving differential signals of the pressure sensors, GND of the HX711AD conversion module is grounded, VCC is connected with a 5V power supply, DT pins of 8 HX711AD conversion modules are respectively connected to Y0 to Y7 ports of an 8-channel analog multiplexer 74HC4051-1 and are used for transmitting pressure signals of the pressure sensors in sequence to the single chip microcomputer in time sharing, SCK pins of 8 HX 73711 conversion modules are respectively connected to Y633 to Y7 ports of another analog multiplexer 74-2, the single chip microcomputer, the SCK conversion module is used for transmitting pressure signals of the pressure sensors in sequence from the single chip microcomputer, the single chip microcomputer is connected to an effective data reading data from an AD bus, the single chip microcomputer I port of a public I/O selection module, the single chip microcomputer is connected to the single chip microcomputer, the single chip microcomputer is connected from the single chip microcomputer I/O port of the single chip microcomputer, the single chip microcomputer I/O selection module, the single chip microcomputer I/O port of the single chip microcomputer, the single chip microcomputer I/O3 to the single chip microcomputer, the single chip microcomputer is used for effectively connected from the single chip microcomputer, the single chip microcomputer I/O21, the single chip microcomputer is connected from the single chip microcomputer, the single chip microcomputer is used for the single chip microcomputer, the single chip microcomputer.
(2-3) wireless transceiver module circuit, wireless transceiver module circuit is used for sending the control signal of night lamp to the intelligent night lamp control unit after the singlechip completes the human body identification, and receive the scanning control signal sent from the intelligent night lamp control unit at the same time, the circuit diagram is shown in fig. 7. the core of the circuit is nRF 24L wireless transceiver chip, there are 20 pins, CE pin is digital input pin, mainly used for selecting receiving mode RX or sending mode TX, connect singlechip pin p 4.4. csn as SPI chip selection signal pin, the chip works when it is low level, connect singlechip pin p 4.5. sck as SPI clock input pin, clock line for controlling chip, connect singlechip pin UC L k1. mosi as chip control data line pin, mainly used for SPI data input, connect singlechip pin somi1.o as chip control data line pin, mainly used for data output, connect singlechip pin simo as chip control data line pin, connect single chip terminal simo as shieldable interrupt, single chip connect single chip with nRF 3901. VSS 1. as chip control data line pin, connect with antenna, common resistor.
(3) Intelligence night-light control unit circuit: the intelligent night lamp control unit circuit comprises a singlechip main control circuit, a brightness detection module circuit and a CO2The unit is mainly used for receiving a switching signal sent by the human body state sensing device unit and controlling the night light to be turned on and off, controlling the night light to be turned off and sending a turn-off scanning signal to the human body state sensing unit when the ambient light intensity is enough, sending a turn-on scanning signal to the human body state sensing unit when the ambient light intensity is not enough, and simultaneously displaying CO in the ambient environment on a L CD display screen when a person stands up at night2Concentration values.
(3-1) the singlechip main control circuit: intelligence night-light control unit's singlechip master control circuit mainly used handles the switching signal that wireless transceiver module received and control relay module and open or close the night-light, utilizes luminance detection module to decide whether to control the night-light and be in normally closed state, reads CO when people get up simultaneously2Number of detection modulesAccordingly and display CO on L CD display screen2Concentration values. The circuit diagram is shown in fig. 8, wherein the reset circuit is used for hardware reset, the high-frequency clock circuit and the low-frequency clock circuit are used for providing corresponding system clock signals for the single chip microcomputer and the wireless transceiver module, and other parts are similar to the single chip microcomputer main control circuit of the human body state sensing unit and are not described more.
(3-2) a brightness detection module circuit, wherein the singlechip senses that ambient light is sufficient through the brightness detection module to keep the night lamp off, the brightness detection module circuit is shown in fig. 9, the output modes of the module circuit are two, namely, an analog output AO and a digital output DO. output high level at the DO end when the ambient light brightness is detected to be lower than a set threshold, the DO end outputs low level when the ambient light brightness exceeds the set threshold, the DO pin is connected with a pin P1.0 of the singlechip, the singlechip can judge the change of the ambient light brightness by detecting the level of the DO pin, the analog output AO can be connected with an AD module, more accurate value of the ambient light intensity can be obtained through AD conversion, a capacitor C28 is used for outputting direct current filter, a capacitor C29 is used for power supply filtering, after a power supply is connected, a power supply indicator lamp is turned on to indicate power supply, a resistor R10 plays a role in current limiting, the brightness of the power supply indicator lamp can be controlled, VR 64 is a potentiometer connected with a power supply, a preset voltage value M L is a voltage value which is higher than the voltage of a current limiting resistor R393, and is used for controlling the ambient light intensity output voltage of the LED lamp, and the input end of the LED is connected with a photosensitive resistor R393 which is used for comparing the input end, and the input end of the LED chip, and the LED is set voltage of the LED chip, and the LED is used for outputting a photosensitive resistor, and the LED chip, and the LED is used for outputting a voltage, and outputting a voltage of the LED chip, and outputting a photosensitive resistor, and the LED chip is used.
(3-3)CO2The detection module circuit: CO 22Detection module MH-Z14 for detecting CO in a bedroom environment when a user gets up at night2The circuit diagram of the concentration is shown in FIG. 10. Four pins are used in the module when serial port output is used, and GND is a grounding pin and is grounded. VCC is an input power supply pin and is connected with a 5V power supply. RXD is a data receiving end of module serial communication and is connected with a single chip microcomputer UTXD0 pin, TXD is a serial communication data sending end of the module and is connected with a single chip microcomputer URXD0 pin. The singlechip can directly read the gas concentration value through the 2 nd byte, namely the high position of the concentration value, and the 3 rd byte, namely the low position of the concentration value of the serial port return value without calculation.
(3-4) wireless transceiver module circuit: the wireless transceiver module is used for receiving a night lamp control signal sent by the human body state sensing unit and sending a closing scanning signal or opening a scanning signal to the human body state sensing unit according to the intensity of ambient light, and a circuit diagram is shown in fig. 11. The circuit and the connecting line of the module are basically consistent with the wireless transceiving module of the human body state sensing unit, so that the description is not repeated.
(3-5) L CD display module circuit L CD display module for displaying CO in current environment when person gets up2The display module circuit is shown in fig. 12, the display module adopts an SPI interface mode, main pins of the display module include VSS, VDD, V0, RS, RW, E, D0 to D7, a, k.vss, ground, VDD, a power input port, a 5V power supply, V0, a contrast adjustment port of the liquid crystal display, an external 10K potentiometer, which is used to adjust the contrast by changing the resistance of the potentiometer, RS, a register selection port, a data register at high level, a command register at low level, connected to a P6.3 pin of the single chip microcomputer, RW, a read/write signal port at high level, a read operation at low level, a write operation at low level, connected to a P6.4 pin of the single chip microcomputer, E, an enable port, when the E is jumped from high level to low level, the liquid crystal module executes a command, connected to the P6.5 pin, D0 to D7, which are 8-bit bidirectional data line ports, respectively connected to P2.0 to P2.7, a power supply port of the single chip microcomputer, a power supply port at negative pole, and a power supply port, a power supply port.
(3-6) a relay module circuit, wherein the singlechip turns on or off L ED night light through a relay module after receiving a control signal of the night light, the relay module circuit is as shown in fig. 13, and the singlechip controls the on-off of a relay by controlling the level of a P1.1 pin to realize the operation of switching on and off the night light.
The relay module mainly comprises a photoelectric coupler U1, an NPN triode Q2 and a relay K1, if a pin P1.1 of the single chip microcomputer is low level, a 5V power supply is connected to the photoelectric coupler U1 through a pull-up resistor R16, a L ED lamp D7 is lightened to indicate that the photoelectric coupler works, a light emitting diode inside the photoelectric coupler emits light to a photoelectric element, the photoelectric coupler is conducted, the base input voltage of the triode Q2 is 5V, the triode is saturated, enough current passes through the relay, the switch is attracted, a L ED night lamp D9 is lightened, a resistor R17 connected to the base is used for reducing the input current of the base and reducing the heating of the triode, a diode D8 is used for reverse polarity protection, the resistor R18 plays a current limiting role and can control the brightness of a L ED D9, in the utility model, a L ED D9 is connected to a normally closed end of the relay K1, if a control pin P1.1 is high level, namely when no control signal is generated, the K1 is disconnected, the relay K869 is kept in a low current control state, and the relay K8653 is controlled by a low current control signal, namely, the relay K828653 is generated.
Claims (5)
1. The utility model provides a wireless induction system of mattress night-light which characterized in that: comprises a human body state sensing unit and an intelligent night lamp control unit; the human body state sensing unit comprises a single chip microcomputer, an array type pressure sensor, a multiplexer, a wireless transceiving module and a power supply module; intelligence night-light control unit has included singlechip, luminance detection module, CO2The intelligent night lamp control unit comprises a detection module, an L CD display module, a relay module and a power module, wherein the wireless transceiver module sends night lamp opening and closing signals to the intelligent night lamp control unit, and the single chip microcomputer controls the relay to open and close the night lamp.
2. The wireless sensor of a mattress night-light of claim 1, wherein: the array type pressure sensors are arranged on the mattress and consist of a plurality of pressure sensor units and a multiplexer, the pressure sensor units are arranged in a matrix form and are connected to the single chip microcomputer through the multiplexer, and the single chip microcomputer sequentially reads pressure information output by each pressure sensor in a time-sharing mode.
3. The wireless sensor of a mattress night-light of claim 1, wherein: the brightness detection module detects the intensity of surrounding light, and the single chip sends an opening/closing scanning request to the human body state sensing unit through the wireless transceiving module.
4. The wireless sensor of a mattress night-light of claim 1, wherein: the CO is2Detection module detects CO in environment2Concentration, CO is displayed on the screen of the L CD display module2And (4) concentration information.
5. The wireless sensor of a mattress night-light of claim 1, wherein: the intelligent night lamp control unit is installed at any reasonable position in a bedroom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922086827.XU CN211152275U (en) | 2019-11-28 | 2019-11-28 | Wireless induction device for night lamp of mattress |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922086827.XU CN211152275U (en) | 2019-11-28 | 2019-11-28 | Wireless induction device for night lamp of mattress |
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| CN211152275U true CN211152275U (en) | 2020-07-31 |
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| CN201922086827.XU Active CN211152275U (en) | 2019-11-28 | 2019-11-28 | Wireless induction device for night lamp of mattress |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114794791A (en) * | 2022-04-20 | 2022-07-29 | 慕思健康睡眠股份有限公司 | Intelligent pad, intelligent detection circuit and intelligent lamp control system |
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2019
- 2019-11-28 CN CN201922086827.XU patent/CN211152275U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114794791A (en) * | 2022-04-20 | 2022-07-29 | 慕思健康睡眠股份有限公司 | Intelligent pad, intelligent detection circuit and intelligent lamp control system |
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