How to judge the pin of the human infrared sensor Emergency 200

Why don't you contact the manufacturer directly?

Technical parameters: 1. Working voltage:

2. Level output: 3V high level for someone, 0V low level for no one.

3. Induction angle: 110 degrees.

4. Quiescent current: less than 40 A

5. Induction distance: 4 to 5 meters.

6. Trigger delay: seconds.

7. Trigger mode: H: repeat L: do not repeat.

8. Dimensions: PCB dimensions: 32*24*20mm, screw hole spacing 28mm, screw hole diameter 2mm;

Look at this again.

Let's ask a professional about this.

As a medical worker, I don't agree with saying that these things can cure diseases, so why do you need hospitals, just ask the person who sold them to you to test it, and you can see the reliability of the things.

NC is empty, GND is the negative pole of the power supply, and 12V is connected to the positive pole of the 12V power supply......That's all I can help.

There are two key elements in the passive infrared detector, one is the pyroelectric infrared sensor (PIR), which can convert the infrared signal change between the wavelength of 8 and 12um into an electrical signal, and can suppress the white light signal in nature, so in the warning area of the passive infrared detector, when there is no human body moving, the pyroelectric infrared sensor only senses the background temperature, when the human body enters the warning area, through the Fresnel lens, The pyroelectric infrared sensor senses the difference signal between the temperature of the human body and the background temperature, therefore, the basic concept of infrared detection of infrared detectors is to sense the difference in temperature between moving objects and background objects.

Another device is the Fresnel lens, which comes in two forms, namely refractive and reflective. Fresnel lens has two functions: one is the focusing effect, that is, the pyrolytic infrared signal is refracted (reflected) on the PIR, and the second function is to divide the warning area into a number of bright and dark areas, so that the moving object entering the warning area can produce a change pyrothermal infrared signal on the PIR in the form of temperature change, so that the PIR can produce a changing electrical signal.

The sensitivity of infrared pyroelectric sensors to the human body is also closely related to the direction of human movement. Infrared pyroelectric sensors are the least sensitive to radial movement and the most sensitive to cross-cutting (i.e., perpendicular to the radius). Choosing the right installation location in the field is an important part of avoiding false alarms and achieving the best detection sensitivity.

Fresnel filter lenses, pyroelectric infrared sensors (PIRs) and matching low-noise amplifiers.

The Fresnel lens has two functions: one is the focusing effect, that is, the pyrothermal infrared signal is refracted on the PIR: the other is to divide the detection area into several bright and dark areas, so that the moving object (person) entering the detection area can produce a changing pyrothermal infrared signal on the PIR in the form of temperature change.

It is also generally matched with a low-noise amplifier, which compensates for the gain and increases its sensitivity when the ambient temperature on the detector rises, especially when it is close to the normal body temperature (37). The output signal can be used to drive electronic switches to realize the on-off control of LED lighting circuits. This is an E27 standard screw lamp head, its power supply range is AC180V-250V (50 60Hz), the infrared sensor detection range is about 3m-15m, its standard products IFS-BULB 3W lamp up to 80 LM, 5W lamp up to 140 LM.

An infrared sensor is embedded in the ** part of the LED light source module. Once the infrared sensor detects a person's body temperature, the LED bulb will automatically turn on and off within 50 seconds. Suitable for any kind of indoor application, such as corridors, storage rooms, stairs and hall entrances.

Infrared sensors can be divided into the following according to the action

1) A thermal type that converts part of the infrared ray into heat, and uses the heat to extract the output signal such as the change in resistance value and electromotive force.

2) A quantum type that uses the photoelectric effect of the semiconductor migration phenomenon to absorb the energy difference and the optical electromotive force effect due to PN bonding.

The thermal phenomenon is commonly known as the scorching effect, and the most representative of them are thermal bolometers, thermopiles and pyroelectric elements.

The advantages of the thermal type are: it can be operated at room temperature, wavelength dependence (there is a large change in the sensitivity of different wavelengths) does not exist, and the cost is cheap;

Disadvantages: low sensitivity, slow response (MS spectrum).

Advantages of quantum type: high sensitivity, fast response ( s spectrum);

Disadvantages: must be cooled (liquid nitrogen), wavelength dependent, **high;

Infrared sensors, in particular, use the sensitivity of the far-infrared range for human examination, and the wavelength of infrared rays is longer than visible light and shorter than radio waves. Infrared rays make people think that they are only emitted by hot objects, but in fact this is not the case, all objects that exist in nature, such as humans, fire, ice, etc., all emit infrared rays, but their wavelengths vary depending on the temperature of the object. The body temperature of the human body is about 36 37 ° C, and the peak of the far infrared rays emitted is 9 10 microns, and the objects heated to 400 700 ° C can emit intermediate infrared rays with a peak of 3 5 microns (not mm).

1. Optical receiver: it receives part of the infrared radiation of the target and transmits it to the infrared sensor 2. Infrared detector: this is the core of the infrared system.

3. Detector cooler: after refrigeration, the equipment can shorten the response time and improve the detection sensitivity 4. Signal processing system: amplify and filter the detected signals, and extract information from these signals.

5. Display device: This is the terminal equipment of infrared equipment.

gnd+5v

The main operating parameters of the output infrared sensor RE200B are:

Working voltage: The commonly used pyroelectric infrared sensor works in the range of 3 15V;

Operating wavelength: typically m;

Source voltage: typically, r=47k;

Output signal voltage: usually greater than;

Detection distance: The detection distance of commonly used pyroelectric infrared sensors is about 6 10m;

Horizontal angle: about 120°;

Operating temperature range: 10 to 40 .