KR20190058004A - High responsability temperuture and humidity sensor module with multi sensing type - Google Patents

Abstract

The present invention relates to a multi-measurement high-reliability temperature/humidity module and, more specifically, to a multi-measurement high-reliability temperature/humidity module which measures humidity values from a plurality of humidity sensors to analyze a distribution of the measurement values to detect errors of the sensors and obtain precise humidity values. According to a proper embodiment of the present invention, the multi-measurement high-reliability temperature/humidity module allows humidity sensors to accurately make measurements since cases where a sensing portion is contaminated by a foreign substance or incorrect measurements are made by relatively large water drops are excluded. Calculation algorithms in accordance with purposes of a plurality of humidity sensors can be selected to make precise measurements.

Description

[0001] HIGH RESPONSIBILITY TEMPERATURE AND HUMIDITY SENSOR MODULE WITH MULTI SENSING TYPE [0002]

The present invention relates to a multi-measurement type high reliability temperature and humidity module, and more particularly, to a humidity measurement module for measuring humidity values from a plurality of humidity sensors and analyzing the distribution of the measured values, Humidity module having a multi-measurement system capable of obtaining a high-reliability temperature and humidity module.

Typically, temperature sensors and humidity sensors have been manufactured and sold using separate processes.

Temperature and humidity sensors are indispensably used for control devices in various living environments, and each sensor is treated as a separate component.

At this time, a temperature sensor uses a temperature dependency of a semiconductor device, a temperature-resisting resistor having a resistance change depending on a temperature, and a thermocouple using a thermoelectric power of a dissimilar metal contact.

Humidity sensors are mostly battery resistance type and capacitive type, and capacitive type is widely used in precision humidity measurement field.

Conventionally, a technique of forming only a first conductor and a second conductor is used, and a technique of forming a sensing film forming technique by dipping in a sensing solution followed by drying is used. This technique has been proposed in Patent Application No. 91-6206.

However, the manufacturing cost of the temperature sensor and the humidity sensor is increased by the separate process, and in particular, in the case of the humidity sensor, since the sensing film is dipped, it is difficult to secure the operation reliability according to the constant sensitivity.

The plurality of measured humidity values may allow the user to select and output the calculation algorithm. The temperature sensor is attached to a PCB such as a humidity sensor and features a structure that is combined with a five-piece material to increase the thermal conductivity between the sensor element and the outside air.

In order to solve the above-described problems, a conventional temperature and humidity sensor has been disclosed in Korean Patent Publication No. 0363687 and the like.

However, the conventional humidity sensor has the following problems.

(1) The humidity sensor is often mistakenly measured due to contamination by foreign substances or relatively large water droplets in the sensing portion for measuring humidity.

(2) The temperature sensor measures the air temperature. If it is in the humidity sensor area, the thermal conductivity is reduced because it is inside the filter.

In order to solve the above-described problems, the present invention provides a humidity sensor comprising a plurality of humidity sensors and a temperature sensor coupled to each other,

And a calculation algorithm for judging the failure of the wet sensor is included,

Wherein the calculating algorithm comprises: calculating an overall average value; Calculating an average value excluding the maximum value and the minimum value; Arranging sensor values in order of magnitude and calculating a sensor value located in the middle; Calculating a sensor value closest to a midpoint between a maximum value and a minimum value of the sensor values, and measuring each of the calculated sensor values to determine that the sensors having a relatively large amount of change are determined as failures.

The multi-measurement type high reliability temperature and humidity module formed as the preferred embodiment of the present invention has the following effects.

(1) The humidity sensor can be accurately measured except when the sensing part for measuring humidity is mistakenly measured by contamination by foreign substances or relatively large water droplets.

(2) By using a plurality of humidity sensors, it is possible to select a calculation algorithm according to the application, and more precise measurement is possible.

1 is a conceptual diagram of a multi-measurement type high reliability temperature and humidity module formed as a preferred embodiment of the present invention.

The present invention is characterized in that a plurality of humidity sensors and a temperature sensor are combined,

And a calculation algorithm for judging the failure of the wet sensor is included,

Wherein the calculating algorithm comprises: calculating an overall average value; Calculating an average value excluding the maximum value and the minimum value; Arranging sensor values in order of magnitude and calculating a sensor value located in the middle; Calculating a sensor value closest to a midpoint between the maximum value and the minimum value of the sensor values, and measuring the calculated sensor values to determine that the sensors having a relatively large amount of change are determined as failures.

Most of the failure pattern of the humidity sensor is a case where the humidity value is maintained at a constant value or a case where the humidity value changes rapidly. Therefore, when a plurality of humidity sensors are measured at regular intervals and stored, and the amount of change is observed, when the relative amount of change is small or large, it can be judged that the humidity is faulty.

The plurality of sensors may be disposed on both sides of the PCB to determine whether the sensor is contaminated or faulty.

In the integrated structure, the humidity sensor part should be able to replace the filter with a structure for mounting the filter on the outside.

Combine the pipes and seal them with thermally conductive silicone to protect the thermal elements and increase the thermal conductivity.

According to the multi-measurement type high-reliability temperature and humidity module formed by the preferred embodiment of the present invention, the humidity sensor can accurately measure the humidity of the sensing portion except for the case where the sensing portion is incorrectly measured due to contamination by foreign substances or relatively large waterdrops And a plurality of humidity sensors can be used to select a calculation algorithm according to the use, so that a more precise measurement can be performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims (1)

A plurality of humidity sensors and a temperature sensor are coupled to each other,
And a calculation algorithm for judging the failure of the wet sensor is included,
Wherein the calculating algorithm comprises: calculating an overall average value; Calculating an average value excluding the maximum value and the minimum value; Arranging sensor values in order of magnitude and calculating a sensor value located in the middle; And calculating a sensor value closest to a midpoint between a maximum value and a minimum value of the sensor values, and wherein each of the calculated sensor values is measured to determine a sensor having a relatively large change amount as a failure High Reliability Temperature and Humidity Measurement Module

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