CN203151836U - A dome light control device - Google Patents

Abstract

The utility model discloses a dome light control device which is composed of a laser emitter, a laser sensor, a control processor and a drive circuit connected to a lamp, wherein the laser emitter installed on the ceiling emits a laser beam to the ground, and the laser beam with a small viewing angle The sensor compares the middle range of the laser beam, blocks the laser beam within the viewing angle range of the laser sensor with the palm of the hand and moves the palm, so that the reflected light spot formed on the palm is dynamically projected onto the laser sensor as a control command. The induction signal is generated on the control processor, and the control processor makes a judgment process, and outputs a control signal to the drive circuit to realize the control of the on, off and brightness adjustment of the lamp. The utility model is used to replace the remote control transmission and receiver control mode of the existing dome light, can save the handheld remote control transmitter, and is simple and convenient to use.

Description

A dome light control device

technical field

The utility model relates to a device for remotely controlling a ceiling light on an indoor ceiling through hand movements.

Background technique

The dome light installed on the ceiling cannot directly touch the light with hands. In addition to simple on and off operations through the wall power switch, the most commonly used method for adjusting brightness and other aspects is to use a hand-held remote control transmitter to remote control on the dome light. The receiver emits infrared or radio remote control signal commands to realize, the biggest inconvenience of this control mode is exactly need to pick up the remote control transmitter to operate every time, and often can not find the remote control transmitter. Another example is a patented technology with a patent number of 201110389105.7. A camera in the lamp is used to take pictures of the operator's gestures and process them to control the lights. It is very convenient to use the remote control transmitter for control, but because of its control signal It needs to be collected by a camera, and the data processing after signal collection is more complicated and requires a higher processor, which increases the cost of the lamp.

Contents of the invention

In order to solve the inconvenience of the existing dome light remote control device relying on the hand-held remote control transmitter to control the lamps, and the problem of high cost in the control method of taking pictures of gestures, the utility model will provide a remote control transmitter that does not need a hand-held The dome light is controlled by hand movements, and the dome light control device has a simple circuit and low cost.

The technical scheme adopted by the utility model to solve the above problems is: a ceiling lamp control device is formed by a laser emitter, a laser sensor, a control processor and a drive circuit connected to a lamp. Among them, the laser sensor is connected to the control processor, the control processor is connected to the driving circuit and then connected to the ceiling light source; the laser transmitter installed on the ceiling emits a laser beam to the ground, and the laser sensor with a viewing angle of less than 10 degrees is compared with the laser beam in the center of the line of sight. In the middle section, the central line of sight intersects with the laser beam, and the laser beam in the range of the intersection serves as the dome light control command area. Usually, there is no laser signal entering within the viewing angle range of the laser sensor, and other light rays are filtered and have no effect on the laser sensor. At this time, the reflected light spot formed by the laser beam on the palm or other objects enters the laser sensor. When the handle is moved up and down, the laser spot will move to the left or right on the laser sensor, and the laser sensor will input the laser light to the control processor. Reflection point sensing signal. Using information such as blocking the laser beam to make the moving direction of the laser reflected light point in the laser sensor as a variety of control instructions, the control processor makes judgments and sends corresponding light control signals to the drive circuit, thereby changing the working state of the light source. Realize the conversion of various lighting modes and switch lights.

Since the action of blocking the laser beam with the hand is used as the control command, various lighting modes can be controlled, eliminating the need for a hand-held remote control transmitter, which is easy to use, and the collection of control information and data processing are simple, without the need for a camera and a complex processor. Simplifying the circuit reduces the cost.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a circuit block diagram of the dome light control device of the embodiment.

Fig. 2 is a lateral structural sectional view of the laser sensor.

Figure 3 is a front view of the laser sensor.

Fig. 4 is the schematic diagram that the control device mounted on the dome light emits two intersecting laser beams and the laser sensor conducts laser detection to the intersection range.

FIG. 5 is a schematic diagram of generating control instructions by blocking laser beams to form laser reflection points.

Fig. 6 is a schematic diagram of the reflected light spot of the laser beam projecting onto the photodiode sensing head of the laser sensor.

Detailed ways

This embodiment is a control device for regulating and controlling LED dome lights. As shown in Figure 1, the laser transmitter 1 uses two small power laser diodes 11 to emit two red laser beams L1, L2, and the laser sensor 2 is used to receive the reflected light 2L of the laser beam and convert the optical signal into a multi-bit The electrical signal is transmitted to a control processor 3 composed of a single-chip computer, and the control processor 3 judges and processes the multi-bit electrical signal and outputs a control signal to the drive circuit 4 to adjust the brightness and on/off of the LED light source 5 . Wherein, the structural principle of laser sensor 2 is as shown in Figure 2, and at the bottom of cylinder shell 21 is a row of laser sensor heads and signal amplification output circuit 25 that are made up of ten photodiodes 23; A piece of colored lens 22 acts like a telescope to limit the viewing angle, partially enlarge and filter white light, and the viewing angle is about less than 10 degrees, so that only a small range in the middle of the laser beams L1 and L2 can enter the viewing angle of the laser sensor; between the photodiodes 23 The grid 24 is separated so that each photodiode 23 only allows the reflected laser light spot with a predetermined incident angle to enter; the structural view of the laser sensor 2 viewed from the direction of the light entrance is shown in FIG. 3 . The schematic diagram of the LED dome light 6 and the control device installed on the ceiling is shown in Figure 4. Two laser diodes 11 are arranged on the left and right sides of the LED dome light 6 to cross each other obliquely to the ground to emit two red laser beams L1, L2. 11 The intersection A is about one meter above the ground, and the center line of sight of the laser sensor 2 is vertically facing the range of the intersection of the two laser beams L1 and L2 for laser detection. Since the viewing angle V of the laser sensor 2 is less than 10 degrees, to The position of the intersection point A can obtain light with a diameter range of about ten centimeters. The control operation of the LED dome light 6 is shown in Figure 5. Usually, the reflected light spots of the laser beams L1 and L2 emitted obliquely to the ground to the floor cannot enter the viewing angle of the laser sensor 2. 7 When the laser beam L1 or L2 extends above and below the intersection point A, a reflected light spot 8 is formed on the hand or other obstacles 7, and the reflected light 2L enters the viewing angle of the laser sensor 2 and is projected on the photosensitive sensor through the lens 22. On the array of diodes 23; as shown in Figure 6, it can be seen that if the palm 7 is moved upward along the laser beam L2 (or L1), the reflected light spot 8 formed will move to the right (or to the left), and will be projected by the two lenses 22 on the Just move to the left (or right) on the photosensitive diode 23 arrays; Move the palm 7 downwards and the movement of the reflected light point 8 is opposite to the above; at this moment, the signal amplification output circuit 25 of the laser sensor 2 will send to the single-chip microcomputer control processor 3 sends out different laser induction signals, and outputs corresponding control signals to the drive circuit 4 after being judged and processed by the single-chip microcomputer control processor 3 . Utilize the above principles to program the single-chip control processor 3, set the following program: within the visual angle V range of the laser sensor 2 above or below the intersection A of the laser beam L1 and L2, extend the laser beam L1 with the palm 7 and extend When the laser beam L1 moves upward, it is an instruction for the LED lamp "dimming and brightening remote control"; when the palm 7 is extended to block the laser beam L2 and moves upward along the laser beam L2, it is an instruction for the LED lamp "dimming and dimming remote control"; When the palm 7 stretches into the laser beams L1 and L2 at the same time and moves up an appropriate distance and then moves down again, it is an instruction of "on and off" for the LED light. According to the needs, more control instructions can be compiled with more kinds of hand movements, moving speed and dwell time, and the number of laser beams can be increased to increase the number of control instructions to achieve a more complex control mode.

Claims (1)

1. one kind by generating laser, laser inductor, the control processor constitutes the ceiling light control device with the drive circuit that is connected light fixture, wherein, laser inductor is connected with the control processor, the output of control processor is connected to drive circuit, drive circuit connects the ceiling light light source again, the generating laser that is installed on the ceiling is launched a branch of above laser beam earthward, the visual angle is less than the laser inductor central vision contrast laser beam interlude of 10 degree, central vision and laser beam form and intersect, produce control signal in the laser inductor by stopping that laser beam formation reflection light point in the laser inductor angular field of view dynamically projects.

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