JP3956505B2 - Omni-directional tilt angle sensor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an omnidirectional tilt angle sensor, and more particularly to an omnidirectional tilt angle sensor that detects acceleration in all horizontal directions.
[0002]
[Prior art]
The conventional (not shown) omnidirectional tilt angle sensor is used for the purpose of detecting the tilt in an unspecified direction by the attached device, and measures the tilt of the spring plate that supports the weight from the front, rear, left and right. Since the angle of inclination was measured by a method such as obtaining the angle or measuring the light passing through the light source fixed to the ceiling using the light sensor on the bottom and obtaining the angle of inclination, The positional relationship was immobile, and it was impossible to measure a large inclination beyond that.
[0003]
The horizontal omnidirectional acceleration sensor responds to an optical sensor consisting of a light emitting part and a light receiving part by pushing up the lever when the weight inserted in the holder is tilted with an acceleration of a predetermined value or more from the horizontal direction. Therefore, it was impossible to measure stepwise acceleration.
[0004]
[Problems to be solved by the invention]
However, the conventional omnidirectional tilt angle sensor cannot measure a large tilt when the device incorporating the omnidirectional tilt angle sensor is tilted or turned over unexpectedly, such as a fall, and the horizontal direction 360 Acceleration sensor for all directions is a device that detects that acceleration more than a predetermined value is applied, and since it cannot measure real-time acceleration, it cannot measure steplessly how much acceleration has been applied was there.
[0005]
In addition, since two sensors, that is, an inclination angle measurement and an acceleration measurement, require separate sensors, there is a problem that a plurality of sensors must be mounted.
[0006]
Accordingly, an object of the present invention is to provide an inclination angle sensor that detects an inclination angle in all directions and an acceleration with respect to all directions in a horizontal direction with a single sensor unit.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, an omnidirectional tilt angle sensor according to the present invention includes a global exterior part made of a hollow insulator and a weight part and a floating part incorporated in the exterior part. A float formed by a portion, an insulating liquid that is inserted into a gap between the float and the exterior portion to minimize frictional resistance, and a conductive contact piece provided at the center of gravity of the bottom surface of the weight portion of the float. And a matrix having innumerable contacts in the vertical and horizontal directions on the inner wall surface of the exterior part, and the vertical contacts and the horizontal contacts are short-circuited by touching the contact points of the matrix and the contact pieces to make a three-dimensional total. It is characterized by detecting the inclination of the azimuth.
[0008]
Further, the omnidirectional tilt angle sensor of the present invention is characterized in that the inclination is continuously detected from the matrix at intervals of a minimum time to detect acceleration in 360 degrees in the horizontal direction.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an omnidirectional tilt angle sensor according to an embodiment of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 is a configuration diagram of an omnidirectional tilt angle sensor according to an embodiment of the present invention.
[0011]
FIG. 2 is a matrix diagram of the coordinate detection circuit of the omnidirectional tilt angle sensor according to the embodiment of the present invention.
[0012]
FIG. 3 is an operation explanatory diagram of the omnidirectional tilt angle sensor according to the embodiment of the present invention.
[0013]
As shown in FIG. 1, an omnidirectional tilt angle sensor according to an embodiment of the present invention includes a global-shaped exterior portion 100 made of a hollow insulator and an interior of the exterior portion 100. The float 102 formed by the weight portion 104 and the floating portion 103, the insulating liquid 101 that is inserted into the gap between the float 102 and the exterior portion 100 to minimize the frictional resistance, and the center of gravity of the bottom surface of the weight portion of the float 102 And a matrix 204 having innumerable contacts 121 and 122 vertically and horizontally on the inner wall surface of the exterior part 100.
[0014]
Further, the matrix 204 may be arranged so that two contacts in vertical and horizontal pairs form a substantially square shape like the matrix contact portion 120, but it is intended to be arranged on the spherical surface without any gaps. It may be formed in a polygonal shape such as a square, and finally a vertical and horizontal matrix is formed at all contacts on the spherical surface, and in order to detect the contacts on the matrix 204, for example, as shown in FIG. The coordinate detection circuit 200 is composed of an electric circuit connected to the measurement end point 202 or the measurement end point 203 via a fixed resistor 201 having a different resistance value for each column of the matrix 204.
[0015]
Next, the operation of the omnidirectional tilt angle sensor according to the embodiment of the present invention will be described with reference to the drawings.
[0016]
The operation of the omnidirectional tilt angle sensor according to an embodiment of the present invention is as follows. First, as shown in FIGS. 1 to 3, the omnidirectional tilt angle sensor 300 of FIG. In the case of the device 301, the float 102 is always stabilized with the contact piece 105 having the center of gravity directed downward, and assuming that the state of FIG. As shown in (B) of FIG. 3, the device 301 itself rolls over, but the incorporated omnidirectional tilt angle sensor 300 always stands perpendicular to the direction of gravity.
[0017]
Accordingly, the contact piece 105 contacts a certain point on the inner surface 110 of the exterior part, and the position on the matrix 204 is calculated by measuring the resistance value between the measurement end point 202 and the measurement end point 203. The omnidirectional tilt angle sensor 300 can measure the tilt angle with respect to all directions.
[0018]
Further, the acceleration measurement operation of the omnidirectional tilt angle sensor according to the embodiment of the present invention is performed as shown in FIG. 3 because the float 102 freely operates inside the omnidirectional tilt angle sensor 300. When the vehicle is accelerated in a certain direction, the contact force on the matrix 204 is temporarily moved by the inertial force of the weight 104 in the same manner as when the device 301 is tilted to temporarily stay there. By monitoring the moving amount and moving speed, the magnitude and direction of acceleration can be measured, and the acceleration in all directions can be measured.
[0019]
【The invention's effect】
As described above, according to the omnidirectional tilt angle sensor of the present invention, it is possible to easily measure the tilt angle even with respect to the tilt so that the top and bottom are interchanged with respect to all directions, and to move in all directions in the flat direction. Is performed, the direction and acceleration can be measured, and the two effects of measuring the tilt angle and the acceleration can be obtained by using one sensor.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an omnidirectional tilt angle sensor according to an embodiment of the present invention.
FIG. 2 is a matrix diagram of a coordinate detection circuit of an omnidirectional tilt angle sensor according to an embodiment of the present invention.
FIG. 3 is an operation explanatory diagram of an omnidirectional tilt angle sensor according to an embodiment of the present invention.
[Explanation of symbols]
100 exterior part 101 insulating liquid 102 float 103 float (floating part)
104 Float (weight)
105 contact piece 110 exterior part (exterior part inner surface)
120 Matrix (Matrix contact part)
121 matrix (vertical matrix contact)
122 Matrix (Horizontal matrix contact)
200 matrix (coordinate detection circuit)
201 matrix (fixed resistor)
202, 203 Measurement end point 204 Matrix 300 Omnidirectional tilt angle sensor

Claims (2)

A globally shaped exterior part made of a hollow insulator inside, a float formed inside the exterior part and formed by a weight part and a floating part, and inserted into the gap between the float and the exterior part It consists of an insulating liquid that minimizes frictional resistance, a conductive contact piece provided at the center of gravity of the bottom surface of the weight of the float, and a matrix having countless contacts vertically and horizontally on the inner wall surface of the exterior part. An omnidirectional type inclination angle sensor which detects a three-dimensional omnidirectional inclination by short-circuiting the vertical contact and the horizontal contact by touching the contact of the matrix and the contact piece. 2. The omnidirectional tilt angle sensor according to claim 1, wherein the inclination is continuously detected from the matrix at intervals of a minimum time to detect acceleration in 360 degrees in all directions in the horizontal direction.

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