CN205883193U - A multifunctional sensor switch - Google Patents

Abstract

The utility model discloses a multi-functional sensing switch, this multi-functional sensing switch include the power input part to and by the infrared ray sensing part of power input part power supply, heat release electric sensing part, the switching part of adjusting luminance, MCU control part, infrared ray sensing part, heat release electric sensing part, the switching part of adjusting luminance is connected with MCU control part's input respectively, MCU control part is according to the height of different sensing part signals level, correspondingly sends PWM signal control load part action, this multi-functional sensing switch is based on the height of input signal level, with this source of judgement signal, thereby control load part does corresponding action, with this satisfy the house, the fire control, the intelligent switch requirement of aspects such as building.

Description

A multifunctional sensor switch

technical field

The utility model relates to a switch circuit, in particular to a multifunctional sensing switch.

Background technique

With the advancement of modern technology, the development of single-chip microcomputer technology is becoming more and more mature. Nowadays, people can use single-chip microcomputer technology to form a sensing switch. Usually, when people use single-chip microcomputer technology, they are often limited to single-function sensing. A single detection module converts the signal Send it to the microcontroller, and then drive the load to act. This method is relatively simple and can only be used for the detection of a single state. We hope to have multiple detection modules for multi-functional sensing.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a multifunctional sensing switch.

The technical scheme that the utility model adopts is:

A multifunctional sensing switch, comprising a power input part, an infrared sensing part powered by the power input part, a pyroelectric sensing part, a dimming switching part, an MCU control part, the infrared sensing part, a pyroelectric The electrical sensing part and the dimming switching part are respectively connected to the input ends of the MCU control part, and the MCU controlling part is used to judge and process the signal electric signals from the infrared sensing part, the pyroelectric sensing part and the dimming switching part. Level high and low, and send a control signal to the load.

The infrared sensing part is provided with an infrared sensing chip, an infrared emitting head and an infrared receiving head, and the infrared sensing chip is electrically connected with the MCU control part, the infrared emitting head and the infrared receiving head respectively.

The pyroelectric sensing part is provided with a pyroelectric chip and a pyroelectric probe, and the pyroelectric chip is electrically connected with the MCU control part and the pyroelectric probe respectively.

The MCU control part is provided with a voltage regulator chip and an MCU, and the voltage regulator chip is electrically connected with the MCU.

The beneficial effects of the utility model:

The multifunctional sensing switch of the utility model, the infrared sensing part, the pyroelectric sensing part, and the dimming switching part are connected to the input end of the MCU control part, and the MCU control part sends signal levels according to different sensing parts, correspondingly Send a PWM signal to control the action of the load part. This multi-function sensing switch judges the source of the signal based on the level of the input signal, so as to control the load to do the corresponding action, so as to meet the requirements of home furnishing, fire protection, construction, etc. Smart switch requirements.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

Fig. 1 is a schematic diagram of the utility model multifunctional sensing switch.

Fig. 2 is a circuit diagram of the MCU control part of the utility model multifunctional sensing switch.

Fig. 3 is a circuit diagram of the infrared sensing part of the multifunctional sensing switch of the present invention.

Fig. 4 is a circuit diagram of the pyroelectric sensing part of the multifunctional sensing switch of the present invention.

Fig. 5 is a circuit diagram of the dimming switching part of the multifunctional sensing switch of the present invention.

detailed description

As shown in Figure 1, the utility model multifunctional sensing switch includes a power input part 1 and an infrared sensing part 21 powered by the power input part 1, a pyroelectric sensing part 22, a dimming switching part 23, and an MCU control part 3. In this embodiment, the infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23 are used for the detection part, and the temperature sensing part, the oxygen concentration sensing part, the carbon dioxide concentration sensing part, etc. can also be used. Devices for detection and sensing. The infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23 are respectively connected to the input end of the MCU control part 3, and the infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23 respectively detect the environment, the infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23 respectively set different output levels, and the MCU control part 3 judges and processes the signals from the infrared sensing part 21, pyroelectric The level of the signal sent by the electrical sensing part 22 and the dimming switching part 23 is used to determine the source of the signal, and send a control signal to the corresponding load.

As shown in Figure 2, the MCU control part 3 is provided with a voltage regulator chip 31 and an MCU32, and the voltage regulator chip 31 is electrically connected to the MCU32. The CMOS single-chip microcomputer and the voltage regulator chip 31 are used to improve circuit impedance and reduce noise interference to the MCU32.

As shown in Figure 3, the infrared sensing part 21 is provided with an infrared sensing chip 211, the output end of the infrared sensing chip 211 is electrically connected with the MCU control part 3, and the infrared sensing part 21 is also provided with an infrared emitting head 212 and an infrared receiving head 213, the infrared sensing chip 211 is electrically connected to the infrared emitting head 212 and the infrared receiving head 213 respectively. The infrared emitting head 212 emits infrared rays, the infrared receiving head 213 receives the infrared rays and inputs the signal to the infrared sensor chip 211 , and the infrared sensor chip 211 inputs the signal to the MCU control part 3 .

As shown in Figure 4, the pyroelectric sensing part 22 is provided with a pyroelectric chip 221 and a pyroelectric probe 222, and the pyroelectric chip 221 is electrically connected to the MCU control part 3 and the pyroelectric probe 222 respectively. The pyroelectric probe 222 detects whether there is a human body in the environment, and inputs the signal to the pyroelectric chip 221 , and the pyroelectric chip 221 inputs the signal to the MCU control part 3 .

As shown in Figure 5, the dimming switching part 23 is provided with a single-pole double-throw switch SW2, the single-pole double-throw switch SW2 includes an output terminal and two input terminals, and the two input terminals are respectively connected to resistors with different resistance values to obtain different voltages. Flat signal, the output end is connected to the MCU control part 3.

The power input part 1 supplies power to the infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23, and the infrared sensing part 21, the pyroelectric sensing part 22, and the dimming switching part 23 respectively detect signals and input In the MCU control part 3, the MCU control part 3 sends a PWM signal to control the load action according to the level of the signal sent by different sensing parts. When the infrared sensing part 21 has a V=2V-3V level input to the MCU32, MCU32 judges the signal to determine that the infrared sensing part 21 can sense, when the pyroelectric sensing part 22 has a V=1V level input to the MCU32, the MCU32 judges the signal to determine that the pyroelectric sensing part 22 can sense According to the measurement, when the dimming switching part 23 has V=4V level input to the MCU32, the MCU32 judges the signal to determine that the dimming switching part 23 can sense it. The multi-function sensing switch judges the source of the signal based on the level of the input signal, so as to control the load to make corresponding actions, so as to meet the requirements of smart switches in home furnishing, fire protection, construction, etc.

The above is only the preferred implementation of the utility model, the utility model is not limited to the above implementation, as long as the technical solutions to achieve the purpose of the utility model by basically the same means are within the scope of protection of the utility model.

Claims (4)

1. A multifunctional sensing switch, characterized in that it includes a power input part (1), an infrared sensing part (21) powered by the power input part (1), a pyroelectric sensing part (22), The dimming switching part (23), the MCU control part (3), the infrared sensing part (21), the pyroelectric sensing part (22), the dimming switching part (23) are respectively connected with the MCU control part (3) The input terminal of the MCU is connected, and the MCU control part (3) is used to judge and process the signal level from the infrared sensing part (21), the pyroelectric sensing part (22), and the dimming switching part (23). High and low, and send a control signal to the load. 2. A multifunctional sensing switch according to claim 1, characterized in that: the infrared sensing part (21) is provided with an infrared sensing chip (211), an infrared emitting head (212), an infrared receiving head (213), the infrared sensing chip (211) is electrically connected to the MCU control part (3), the infrared emitting head (212), and the infrared receiving head (213) respectively. 3. A multifunctional sensing switch according to claim 1, characterized in that: the pyroelectric sensing part (22) is provided with a pyroelectric chip (221) and a pyroelectric probe (222), The pyroelectric chip (221) is electrically connected with the MCU control part (3) and the pyroelectric probe (222) respectively. 4. A multifunctional sensing switch according to claim 1, characterized in that: the MCU control part (3) is provided with a voltage regulator chip (31) and an MCU (32), the voltage regulator chip ( 31) It is electrically connected with the MCU (32).