company news about How do temperature and humidity sensors create a comfortable living environment?

Temperature and humidity may seem ordinary, but they are closely related to health. In an environment with excessively high temperature (＞28℃) and high humidity (＞70%), it is as if a "reproduction paradise" has been created for bacteria and mites. Especially for mites, at a temperature of 25℃ and humidity of 60% or above, their reproduction speed is truly "frenetic", and their massive proliferation can easily trigger allergic symptoms, causing great suffering to people with allergic constitutions. On the contrary, when the temperature is too low (＜20℃) and the humidity is too low (＜30%), the respiratory mucosa will become fragile due to dryness, significantly increasing the chances of contracting respiratory diseases such as colds and pharyngitis.

The temperature and humidity sensor is like a "behind-the-scenes manager", by sensing the environmental temperature and humidity, it redefines our daily experience of home life.

How do temperature and humidity sensors "read" the environment?

1. Temperature and humidity sensors can convert the temperature (°C) and relative humidity (% RH) in the environment into interpretable electrical signals. Take the common thermistor as an example. Its working principle is like a "resistance regulator" that is extremely sensitive to temperature. When the environmental temperature changes, the resistance value of the thermistor will change accordingly. At 0°C, it has a specific resistance value. Once the temperature rises, the resistance gradually decreases. By precisely measuring this resistance change, the specific temperature value can be calculated.

2. In terms of humidity measurement, for an capacitive humidity sensor, it works by utilizing the characteristic that the dielectric constant of the hygroscopic material changes after absorbing moisture, which in turn causes a change in capacitance. When the moisture content in the air varies, its "electrical capacitance" also changes accordingly. By capturing this change, the sensor can accurately calculate the relative humidity. For example, a relative humidity of 50% means that the current moisture content is half of the saturated moisture content at the same temperature.

How do sensors enable smart homes to create comfort?

1. When a humidity and temperature sensor is integrated into the smart home system, it enables "on-demand energy regulation". When no one is at home, the air conditioner temperature is automatically adjusted to the energy-saving mode (28°C in summer), and the humidity is maintained at the basic appropriate level, significantly reducing energy consumption and saving electricity costs.

2. The sensor can complete a data update every 1 - 5 minutes, and it precisely captures differences based on the characteristics of different areas. For example, the temperature in the kitchen often surges instantly due to cooking activities, while the bedroom requires a more constant and stable environment. The collected data is quickly transmitted to the smart home gateway, where it is compared with the user's pre-set "comfort threshold". Once the data exceeds the set range, an efficient "device control action" is immediately initiated.

3. At night, when the sensor detects that the bedroom temperature drops to 23°C, which is below the user's set 24°C comfortable temperature, and the humidity rises to 62%, which is higher than the ideal 60%, the sensor quickly feeds the data back to the smart home system. The air conditioner then stops cooling to prevent people from getting cold due to continuous low temperatures; the dehumidifier also starts quietly and automatically shuts off when the humidity drops to 55%.

4 The bathroom is often in a high-humidity environment. After taking a bath, the humidity often surges to over 90%. In such an environment, the surface of the tiles is highly prone to mold growth, which not only affects the appearance but also may pose a health hazard; the slippery floor also significantly increases the risk of slipping. At this time, once the temperature and humidity sensor detects that the humidity exceeds 80%, it can immediately trigger the bathroom humidifier to start. The humidifier, while working, also has an efficient dehumidification function, quickly reducing the humidity. When the humidity drops to 60%, the humidifier automatically shuts off to avoid excessive dehumidification that leads to energy waste, effectively maintaining a dry bathroom.