CN208268858U

CN208268858U - A kind of pressure sensitive desk lamp

Info

Publication number: CN208268858U
Application number: CN201821043533.8U
Authority: CN
Inventors: 胡玲艳
Original assignee: Dalian University
Current assignee: Dalian University
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2018-12-21
Anticipated expiration: 2028-07-03

Abstract

The utility model discloses a kind of pressure sensitive desk lamps, it include: seat end and desk end, the seat end includes control chip a, human pressure's sensor and wireless sending module, and the control chip a is electrically connected with human pressure's sensor, wireless sending module respectively；The desk end includes control chip b, optocoupler, wireless receiving module, light intensity sensor and LED light, and the control chip b is electrically connected with optocoupler, wireless receiving module and light intensity sensor respectively, and the optocoupler is also electrically connected with LED light.The application is equipped with the mutual cooperation of human pressure's sensing device and desk end intensity of illumination sensor by seat end, may be implemented to open illumination when someone on and seat darker in current environment.

Description

A kind of pressure sensitive desk lamp

Technical field

The utility model relates to a kind of desk lamp, specifically a kind of pressure sensitive desk lamp.

Background technique

With the continuous progress of science and technology and develop, there are more and more inductive desk lamps to work, but mesh Preceding human body inductive lamp in the market is the inductor operated according to the infrared ray of human body, and the temperature of human body is generally in 36-37 Degree, can issue the infrared ray of specific wavelength.Its switch is mainly by pyroelectric infrared sensor and dedicated monolithic integrated optical circuit structure At people is bright to lamp, turns off the light when you leave.But there are blind areas for pyroelectric infrared sensor, and are easy by various heat sources, light source, penetrate Radio-frequency radiation, the interference of thermal current；Passive infrared penetration power is poor, and the infra-red radiation of human body is easily blocked；Environment temperature and human body When temperature is close, detection and sensitivity are decreased obviously, and cause failure in short-term sometimes.

Utility model content

In order to overcome drawbacks described above of the existing technology, the application provides a kind of pressure sensitive desk lamp, passes through seat end Mutual cooperation equipped with human pressure's sensing device and desk end intensity of illumination sensor may be implemented darker simultaneously in current environment And illumination is opened on seat when someone.

To achieve the above object, a kind of technical solution of the application are as follows: pressure sensitive desk lamp, comprising: seat end and desk End, the seat end include control chip a, human pressure's sensor and wireless sending module, the control chip a respectively with people Pressure sensor, wireless sending module are electrically connected；The desk end include control chip b, optocoupler, wireless receiving module, Light intensity sensor and LED light, the control chip b electrically connect with optocoupler, wireless receiving module and light intensity sensor respectively It connects, the optocoupler is also electrically connected with LED light.

Preferably, human pressure's sensor model number is BF1K-3AA.

Preferably, the control chip a uses STC12C5A60S2 series monolithic.

Preferably, the optocoupler uses controllable TLP181 photoelectric coupling control device.

Preferably, the model BH1750FVI of the light intensity sensor.

The utility model due to using the technology described above, can obtain following technical effect:

1, the mutual cooperation of human pressure's sensing device and desk end intensity of illumination sensor is equipped with by seat end, it can be with Illumination is opened when realizing someone on and seat darker in current environment；

2, being isolated for strong and weak electricity is carried out using optocoupler between chip b and LED light by controlling at desk end, to avoid danger Danger；

3, it is attached by the control chip a at seat end and the control chip at desk end by 2.4G wireless module, from And avoid wiring.

Detailed description of the invention

Fig. 1 is a kind of pressure sensitive Table lamp structure block diagram.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments: special to this as example Benefit is further described explanation.

Referring to Fig. 1, the utility model provides a kind of technical solution: a kind of pressure sensitive desk lamp, comprising: seat end and book Table end, seat end include control chip a, human pressure's sensor and wireless sending module；The control chip a respectively with human body Pressure sensor, wireless sending module are electrically connected, to detect and by wireless transmission mould to the pressure on seat Block is sent to desk end；Desk end includes control chip b, optocoupler, wireless receiving module, light intensity sensor and LED light；It is described It controls chip b to be electrically connected with optocoupler, wireless receiving module and light intensity sensor respectively, the optocoupler electrically connects with LED light It connects；Control chip b removes control optocoupler by receiving the pressure value combination current environment illumination intensity value at seat end, thus realization pair The induction control desk lamp of human pressure is realized in the control of LED light.The type selecting of specific component in the application are as follows:

Human pressure's sensor: being completed by BF1K-3AA, and BF1K-3AA is high precision electro resistive foil gauge.

Control chip a:STC12C5A60S2 series monolithic is single clock/machine cycle (1T) of macrocrystalline science and technology production Single-chip microcontroller.

Seat end power module: it is powered using 5V DC power supply, the need of each monolithic in seat end is met after rectified pressure stabilizing It asks.

Wireless communication module: the communication module completes wireless receiving and dispatching process of the pressure data between slave and host, uses The wireless chip NRF24L01 of 2.4GHZ frequency.

Optocoupler: the controllable photoelectric coupling control device of TLP181.

Control chip b:STC89C52RC is a kind of low-power consumption of STC Corporation's production, 8 8-digit microcontroller of high-performance CMOS.

Light intensity sensor: BH1750FVI is a kind of numeric type light intensity sensor collection of twin wire serial bus interface At circuit.This integrated circuit can adjust the brightness of liquid crystal or keyboard backlight according to the light intensity data of collection. Large range of intensity variation can be detected using its high-resolution.

Desk end power module: desk end power module is powered using 5V DC power supply, meets desk after rectified pressure stabilizing Hold the power supply requirement of each unit.

Working principle of the utility model is: control chip a control human pressure's sensor at seat end acquires human pressure It is worth, and the pressure value of acquisition is sent to the wireless receiving module at desk end, wireless receiving module by wireless sending module Pressure value is transferred to control chip b, control chip b combines the illumination intensity value of collected current environment to be judged whether It needs to connect LED light；When illumination intensity value is lower than threshold value and pressure value is greater than the set value, then LED light is connected.To reach intelligence The human body sensing desk lamp of energyization.What the working method was known to the skilled person, then without any in signal transmitting and judgement It improves.

The above, only the utility model create preferable specific embodiment, but the protection that the utility model is created Range is not limited thereto, and anyone skilled in the art creates the technical scope disclosed in the utility model Interior, technical solution and its utility model design created according to the utility model are subject to equivalent substitution or change, should all cover Within the protection scope that the utility model is created.

Claims

1. a kind of pressure sensitive desk lamp characterized by comprising seat end and desk end, the seat end include control chip A, human pressure's sensor and wireless sending module, the control chip a respectively with human pressure's sensor, wireless sending module It is electrically connected；The desk end includes control chip b, optocoupler, wireless receiving module, light intensity sensor and LED light, the control Coremaking piece b is electrically connected with optocoupler, wireless receiving module and light intensity sensor respectively, and the optocoupler also electrically connects with LED light It connects.

2. a kind of pressure sensitive desk lamp according to claim 1, which is characterized in that human pressure's sensor model number is BF1K-3AA。

3. a kind of pressure sensitive desk lamp according to claim 1, which is characterized in that the control chip a is used STC12C5A60S2 series monolithic.

4. a kind of pressure sensitive desk lamp according to claim 1, which is characterized in that the optocoupler uses controllable TLP181 Photoelectric coupling control device.

5. a kind of pressure sensitive desk lamp according to claim 1, which is characterized in that the model of the light intensity sensor BH1750FVI。