CN201830228U

CN201830228U - Human-body counting-type electrical-appliance switch

Info

Publication number: CN201830228U
Application number: CN2010205000486U
Authority: CN
Inventors: 王显平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2011-05-11
Anticipated expiration: 2020-08-23

Abstract

The utility model relates to a human-body counting-type electrical-appliance switch, which comprises a plastic shell and a circuit board, and is characterized in that human-body infrared pyroelectric sensors (PIR1 and PIR2) are respectively installed on the two planes of the plastic shell, the mutual angle of the two planes is 45 degrees, a convex lens is installed on the surface of each human-body infrared pyroelectric sensor, the output ends of the two infrared pyroelectric sensors (PIR1 and PIR2) are connected with the input pins 7 and 8 of a singlechip (AT89C2051) on the circuit board, and a relay is controlled by the output pin 13 of the singlechip (AT89C2051) through a triode. Through the utility model, the problem that a human-body infrared pyroelectric inductive switch generally used at present can not be used as a long-time control switch is better solved, not only can human bodies be utilized to generate an infrared radiation signal as a switching signal, but also the number of the human bodies can be detected, electrical appliances are automatically started and shut down according to the change of the number of the human bodies, and the human-body counting-type electrical-appliance switch has the characteristics of simple structure, convenience in installation and high reliability, can be used in school classrooms, offices or rooms where personnel often go in and out, and has certain market prospects.

Description

Human body counter appliance switch

Technical field

The utility model relates to a kind of appliance switch, particularly relates to a kind of human body counter appliance switch, belongs to the appliance switch field.

Background technology

At present, mostly known human induction switch is human body infrared thermal release electric inductive switch, utilize to survey human body infrared having or not to be used as switching signal, such as the control people promptly open, the people walks the corridor lamp of promptly closing, automatically-controlled door, electromagnetically operated valve etc.The detection range of human body infrared thermal release electric inductive switch is limited, generally can be above 10 meters, only within its investigative range, just work, and, can only pass through the opening time that delay circuit could be controlled light fixture, door and window, electromagnetically operated valve, therefore, human body infrared thermal release electric inductive switch is the control switch in short-term that a kind of human body must be at the scene, and for human body not at the scene, the place of the time control of rectificating again, such as the light fixture in classroom, the air-conditioning of office etc., this switch obviously is not suitable for.

Summary of the invention

The purpose of this utility model is exactly to solve the problem that the human body infrared thermal release electric inductive switch that generally uses at present can not control switch uses when long, propose and announce a kind of human body counter appliance switch, it not only can utilize the infrared signal of human body as switching signal, and can also survey the number of human body, and open and close automatically electrical equipment according to the variation of human body number, have simple in structure, easy for installation, high reliability features.

The purpose of this utility model is to realize by such technical scheme: structurally comprise plastic casing and circuit board two parts, it is characterized in that: on two planes of the mutual miter angle of plastic casing, be separately installed with human body pyroelectric infrared sensor (PIR1, PIR2), in described human body pyroelectric infrared sensor mounted on surface convex lens are arranged, input 7 pin, 8 pin of single-chip microcomputer (AT89C2051) on the output connecting circuit plate of two pyroelectric infrared sensors (PIR1, PIR2), output 13 pin of single-chip microcomputer (AT89C2051) are by the triode control relay.Operation principle of the present utility model is: (1) is installed in human body counter appliance switch on the doorframe crossbeam in rooms such as classroom, office, and will control lamp switch, air-conditioning switch series connection, the energized then in cable and room.(2) as the people from entering the room outdoors, pyroelectric infrared sensor PIR1 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR2, at this moment, after the order that single-chip microcomputer reads in signal is the PIR2 of PIR1 elder generation, handle through internal processes, counter advances to be " 1 " (expression has a people in the room) from " 0 ", at this moment, 13 pin output high level, the relay adhesive, power connection arrives lamp switch SK1 and air-conditioning switch SK2, as long as open light fixture switch S K1 or air-conditioning switch SK2, light fixture, air-conditioning just can be worked.(3) when the people being arranged again from entering the room outdoors, pyroelectric infrared sensor PIR1 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR2, at this moment, after the order that single-chip microcomputer reads in signal is the PIR2 of PIR1 elder generation, handle through internal processes, counter advances to be " 2 " (expression has two people in the room) that at this moment, 13 pin still keep high level from " 1 ", the relay adhesive, power supply is connected as usual.(4) walk out outdoors from the room as the people, pyroelectric infrared sensor PIR2 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR1, at this moment, after the order that single-chip microcomputer reads in signal is the PIR1 of PIR2 elder generation, handle through internal processes, counter is kept to " 1 " (expression also has a people in the room) from " 2 ", and at this moment, 13 pin still keep high level, the relay adhesive, power supply is connected as usual.(5) walk out outdoors from the room as the people, pyroelectric infrared sensor PIR2 on the doorframe crossbeam detects human body earlier, detects human body behind the PIR1, at this moment, after the order that single-chip microcomputer reads in signal is the PIR1 of PIR2 elder generation, handle through internal processes, counter is kept to " 0 " (expression is had no talent in the room) from " 1 ", at this moment, 13 pin output low levels, relay discharges, and dump is even the people also can automatically shut down not turning off the light or close under the situation of air-conditioning.Enter just energized of room again up to next people.This shows, the utility model enters by calculating or the number that withdraws from a room is come control apparatus, just enter " 1 " automatically when entering room one people's counter, the people's counter that withdraws from a room just subtracts " 1 " automatically, when counter is not " 0 ", and single-chip microcomputer output high level, by the relay energized, when counter was " 0 ", the single-chip microcomputer output low level was cut off the electricity supply by relay.Like this, just can have for a long time in the room under people's the situation and power, cut off the power supply under the situation of having no talent in the room, realize that the people comes light fixture, air-conditioning work, the people walks light fixture, air-conditioning is not worked, thereby reaches the purpose of saves energy.

Owing to adopted technique scheme, the utility model has solved the problem that the human body infrared thermal release electric inductive switch that generally uses at present can not control switch uses when long preferably, not only can utilize the infrared signal of human body as switching signal, and can also survey the number of human body, and open and close automatically electrical equipment according to the variation of human body number, have simple in structure, easy for installation, high reliability features, can use in classroom, office or the room that has personnel often to come in and go out, have certain market prospect.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is a scheme of installation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is circuit theory diagrams of the present utility model;

Fig. 4 is relay contact K and lamp switch SK1, air-conditioning switch SK2 annexation figure.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

As shown in Figure 1 and Figure 2, the utility model is installed on the doorframe crossbeam in rooms such as classroom, office, and will control lamp switch SKI, the air-conditioning switch SK2 series connection in cable and room, energized then.

As shown in Figure 3, Figure 4, the utility model structurally comprises plastic casing and circuit board two parts, it is characterized in that: on two planes of the mutual miter angle of plastic casing, be separately installed with human body pyroelectric infrared sensor (PIR1, PIR2), in described human body pyroelectric infrared sensor mounted on surface convex lens are arranged, input 7 pin, 8 pin of single-chip microcomputer (AT89C2051) on the output connecting circuit plate of two pyroelectric infrared sensors (PIR1, PIR2), output 13 pin of single-chip microcomputer (AT89C2051) are by the triode control relay.Operation principle of the present utility model is: (1) as the people from entering the room outdoors, pyroelectric infrared sensor PIR1 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR2, at this moment, after the order that single-chip microcomputer reads in signal is the PIR2 of PIR1 elder generation, handle through internal processes, counter advances to be " 1 " (expression has a people in the room) from " 0 ", at this moment, 13 pin output high level, the relay adhesive, power connection arrives lamp switch SK1 and air-conditioning switch SK2, as long as open light fixture switch S K1 or air-conditioning switch SK2, light fixture, air-conditioning just can be worked.(2) when the people being arranged again from entering the room outdoors, pyroelectric infrared sensor PIR1 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR2, at this moment, after the order that single-chip microcomputer reads in signal is the PIR2 of PIR1 elder generation, handle through internal processes, counter advances to be " 2 " (expression has two people in the room) that at this moment, 13 pin still keep high level from " 1 ", the relay adhesive, power supply is connected as usual.(3) walk out outdoors from the room as the people, pyroelectric infrared sensor PIR2 on the doorframe crossbeam detects human body earlier, detect human body behind the PIR1, at this moment, after the order that single-chip microcomputer reads in signal is the PIR1 of PIR2 elder generation, handle through internal processes, counter is kept to " 1 " (expression also has a people in the room) from " 2 ", and at this moment, 13 pin still keep high level, the relay adhesive, power supply is connected as usual.(4) walk out outdoors from the room as the people, pyroelectric infrared sensor PIR2 on the doorframe crossbeam detects human body earlier, detects human body behind the PIR1, at this moment, after the order that single-chip microcomputer reads in signal is the PIR1 of PIR2 elder generation, handle through internal processes, counter is kept to " 0 " (expression is had no talent in the room) from " 1 ", at this moment, 13 pin output low levels, relay discharges, and dump is even the people also can automatically shut down not turning off the light or close under the situation of air-conditioning.Enter just energized of room again up to next people.This shows, the utility model enters by calculating or the number that withdraws from a room is come control apparatus, just enter " 1 " automatically when entering room one people's counter, the people's counter that withdraws from a room just subtracts " 1 " automatically, when counter is not " 0 ", and single-chip microcomputer output high level, by the relay energized, when counter was " 0 ", the single-chip microcomputer output low level was cut off the electricity supply by relay.Like this, just can have for a long time in the room under people's the situation and power, cut off the power supply under the situation of having no talent in the room, realize that the people comes light fixture, air-conditioning work, the people walks light fixture, air-conditioning is not worked, thereby reaches the purpose of saves energy.

Claims

1. human body counter appliance switch, comprise plastic casing and circuit board two parts, it is characterized in that: on two planes of the mutual miter angle of plastic casing, be separately installed with human body pyroelectric infrared sensor (PIR1, PIR2), in described human body pyroelectric infrared sensor mounted on surface convex lens are arranged, input 7 pin, 8 pin of single-chip microcomputer (AT89C2051) on the output connecting circuit plate of two pyroelectric infrared sensors (PIR1, PIR2), output 13 pin of single-chip microcomputer (AT89C2051) are by the triode control relay.