Multilayer electric heating tiles

Abstract

The present invention provides an electric heating tile that includes a control module connected to the electric heating tile, which collects temperature data from a temperature sensor placed inside the electric heating tile and controls heating by the heating wire in a safe and simple manner based on that temperature data. [Solution] The present disclosure relates to an electric heating tile comprising a first layer including at least one temperature sensor and a power line electrically connected to the temperature sensor, a second layer disposed on the upper surface of the first layer and including an electric heating wire electrically connected to the power line, an upper cover covering the upper surface of the second layer, and a lower cover covering the lower surface of the first layer, wherein the lower cover has at least one fastening member on one side that is electrically connected to the power line formed in the first layer.

Claims

1. A temperature sensor and The system includes a sensor error monitoring unit that determines whether or not foreign matter is attached to the temperature sensor based on temperature data collected from the temperature sensor. The sensor error monitoring unit calculates the average value and standard deviation of sensor values ​​measured at a preset time interval, identifies sensor values ​​outside the standard deviation from the average value as noise data, calculates the time interval between the identified noise data, and determines that foreign matter is attached to the temperature sensor if the time interval between the noise data is not constant. Electric heating tiles.

2. The sensor error monitoring unit has a maximum difference value M ｄ The average value T of the time interval between the noise data. ａｖｇ Based on this, it is determined whether the time interval is constant or not. Here, the maximum difference M in the time interval between the noise data is found. ｄ However, the following formula, [Math 1] Satisfying N ｍａｘ This is the maximum value of the time interval between the noise data, N ｍｉｎ This is the minimum time interval between the noise data, and the average value T is the minimum value. ａｖｇ The following formula, [Math 2] Satisfying T （ｉ－１） ｔｏ ｉ is the time interval between the (i-1)th noise data and the i-th noise data, and T ０ ｔｏ １ n is the time interval between the start of sensor operation and the appearance of the first noise data, and n is the number of noise data points. The electric heating tile according to claim 1.

3. The sensor error monitoring unit is configured to determine that the time interval is not constant when the maximum difference value M ｄ is greater than or equal to a predetermined constant multiple of the average value T ａｖｇ of the time intervals between the noise data, and to determine that the time interval is constant when the maximum difference value M ｄ is less than the predetermined constant multiple of the average value T ａｖｇ of the time intervals between the noise data. The electric heating tile according to claim 2.

4. The predetermined constant is 2. The electric heating tile according to claim 3.

5. A first layer having the temperature sensor and power lines electrically connected to the temperature sensor, A second layer having a heating element electrically connected to the power line, which is positioned on the upper surface of the first layer, An upper cover that covers the upper surface of the second layer, The device comprises a lower cover that covers the lower surface of the first layer, The lower cover has at least one fastening member on one side that is electrically connected to the power line formed in the first layer. The electric heating tile according to any one of claims 1 to 4.

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