JPH0436516A - Electronic carpet - Google Patents

Abstract

PURPOSE:To effect the heating only at a heating-requiring portion and enable automatically cutting off power when the heating is not required by a method wherein a carpet is divided into a plurality of sections, each of these sections is provided with a heater to which power can be applied independent of the others, and the heater is turned on only for the section where presence of a body thereon is detected. CONSTITUTION:A location-detective sensor of a contact type is provided. An abscissa detective line R and an ordinate detective line L, when pressure is applied from above, come into contact at their intersection corresponding to the pressure. A current passes in each of the detective lines corresponding to the pressure and coordinate detectors 20, 30 determine the coordinates for the position where the pressure is applied. When a person mounts at a position A on a carpet 10 which, for example, is divided into nine sections, as shown in the drawing, current passes in each of detective lines x4, x5, and y4, signifying detection of a body on the sections 5, 6, and as a result, power is supplied to only these sections for heating. If a body continues to be present at a position B, as shown in the drawing, from the initialized stage, a current continues to flow in each of detective lines x1, y1 from the initialized stage, and, as a result, the position B is memorized as an operation-free coordinate point; unless detection occurs at any of the three other points in the section 1, this section is not supplied with power for heating.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an electronic carpet that heats the upper surface of the carpet by energizing a heater wired inside the carpet.

C) Conventional technology Conventional electronic carpets divide the carpet into several sections in order to reduce power consumption, and use a switch to select the section that requires carpet heating. This situation is shown in FIG. (a), (b), and (C) represent the carpet sections, and (x) represents the switch for heating each section. For example, in order to heat section (a), changeover switch (2) may be manually connected to side a. Furthermore, if all of the sections (a), (b), and (c) are to be heated, the changeover switch (2) may be connected to the d side. In addition, the electronic carpet heating can be started and stopped using the switch ).

In this method, a person must operate the changeover switch (2) and the switch (1) when changing the section to be heated or when starting and stopping heating.

(c) Problems to be Solved by the Invention When it becomes necessary to change the section to be heated, human operations are required. To prevent operations from becoming cumbersome, the shapes of the compartments are simplified and the number of compartments is reduced. As a result, even areas of the carpet where no one is sitting on the carpet are heated, resulting in wasted electricity.

Also, I don't have to judge whether the heating is running or not, and if I'm not careful, I forget to turn off the electronic carpet.

In order to solve this problem, the present invention confirms the presence and position of an object on the electronic carpet, automatically starts heating operation only in the area where the object is present, and automatically starts heating operation only when the object is no longer present. The purpose is to stop heating operation.

(D) Means for Solving Problem yA The present invention divides the carpet body into a plurality of sections,
It has a configuration in which a heater that is individually energized is wired to each of these compartments, and also includes a detection means that detects the presence of a human body in the compartment, and an energization unit that energizes only the heater in the detected compartment. ing.

(E) Function According to the present invention, the heater is automatically energized only in the compartment where the user is present.

(F) Embodiment FIG. 2 is an example of a position detection sensor (S) as a detection means used in the present invention. This sensor (A) is a contact type, and normally the X coordinate detection line (R) and Y coordinate detection line (L) are not in contact, and by applying pressure from the top of the sensor, the corresponding X coordinate detection line ( R)
The intersection of the Y-coordinate detection line (L) and the Y-coordinate detection line (L) come into contact.

If a voltage is applied between the lines (R) and (L) in advance, the corresponding X coordinate detection line (R
) and the Y-coordinate detection line (L), and the X-coordinate detector (20) and Y-coordinate detector (30) detect the (X, Y) coordinates of the position where pressure is applied.

FIG. 3 shows an embodiment of the present invention incorporating the sensor shown in FIG. The X and Y coordinate detection lines are represented by dotted lines, and this carpet (10) is composed of nine sections. Now, if human body A is placed in the position shown in the figure, current flows through the detection lines of xi, x5, and y4, and human body A
is detected to exist in partition (5) and partition (6),
Electric power for heating is supplied only to compartments (5) and (6). When human body A no longer exists in sections (5) and (6), the currents flowing through xi, x5, and y4 stop, it is detected that object A no longer exists, and it is detected that object A no longer exists in sections (5) and
The supply of power to (6) is stopped.

Next, if object B (furniture leg, etc.) exists in the position shown in Figure 3 from the initial state,
Since current continues to flow through the detection line of yl, section (1)
, it is detected that object B exists continuously on the carpet (1G) from the initial state, and the non-moving coordinate point is (xi
, yl) are stored. Therefore, the other three points in section l (
xi, y2), (x2, yl), (X2, y2) is not detected, the section (1) containing the coordinate point (xi, yl)
No electricity is provided for heating.

The sensor of this embodiment is just one example, and similar effects can be obtained by using sensors of other types.

Figure 3 shows an example of a carpet with nine sections.
Furthermore, increasing the number of sections and dividing the area into smaller sections will result in less wasted electricity.

FIG. 4 shows a block diagram for implementing the present invention.

An event occurring in the position detection sensor is detected by the sensor state detection section (40), and the sensor state is detected by the main control section (40).
Send to 1). The main control unit (41) determines the section where the change occurred, and determines whether to start or stop supplying power. In the power supply section (42), the main control section (41
) starts or stops supplying power to the partition determined by , the flow of the operation of the main control section (41) is shown in the figure.

(G) Effects of the Invention As described above, according to the present invention, in the heating operation of the electronic carpet, only the necessary parts are heated, and the power supply is automatically stopped when it is unnecessary, so that unnecessary power is consumed. You don't have to.

[Brief explanation of drawings]

fa) and fb) in FIG. 1 are explanatory diagrams showing the sections of a conventional electronic carpet and an example of a switch for selecting this section. FIG. An explanatory diagram showing an example of a sensor, FIG.
FIG. 4 is an explanatory diagram showing an example of partitions and sensor arrangement when the present invention is implemented, and FIG. 4 is a block diagram and a flowchart diagram of the present invention. FIG. 5 shows the structure of the present invention.

Claims (1)

[Claims] (1) A detection means for detecting the division by forming a carpet main body into a plurality of divisions, and wiring a heater that is individually energized for each division, and confirming the presence of a human body riding on the upper surface of the carpet body. An electronic carpet characterized by comprising: energizing means for energizing a heater wired to the detected compartment.