JP2015092155A - Magnetic setting apparatus, and clinometer using magnetic setting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately accomplish prescribed setting while maintaining satisfactory sealing performance.SOLUTION: A magnetic setting apparatus 1 comprises a setting unit 10 and a magnetic key 30. A plurality of Hall elements are arranged on a plane and built into the setting unit 10. The magnetic key 30 has a plurality of magnets so built into it as to coincide with the position of one of the Hall elements, and each pair of the magnets opposing the Hall elements are so combined with each of the Hall elements that the S pole and the N pole of each magnet are arranged to be rotationally asymmetric. Further, the setting unit 10 is configured to perform prescribed setting if, when a combination of the S pole and the N pole of the magnet opposing a Hall element differs every time, the detection pattern of the output value of each Hall element obtained for each of two or more times of combining the magnetic key 30 with the setting unit 10 coincides with a predetermined first pattern of the output value.

Description

  The present invention relates to a magnetic setting device for making a predetermined setting by bringing a key means having a magnet from the outside close to setting means for making a predetermined setting such as setting of an inclination angle, and an inclinometer using the magnetic setting device. About.

  As a magnetic setting device that performs a predetermined setting by bringing a magnetic key means close to the setting means from the outside, for example, there is an apparatus having a non-contact adjusting means described in Patent Document 1. This apparatus is configured so that a sensor and a magnet are provided in a completely sealed cylindrical case, a rotatable ring is assembled to the case, and the magnet moves according to the rotation of the rotating ring. In this apparatus, the rotating ring is rotated to change the magnet to a position of a predetermined angle, the position of the changed magnet is detected by a sensor, and a parameter value corresponding to the detected position is set. Thus, the parameter value set in the apparatus can be set to a desired value by turning the rotating ring.

JP 2009-152199 A

  However, since the apparatus of Patent Document 1 detects the position of one magnet with a sensor in the case, when there is an object having a magnetic field in the vicinity of the case, the influence of the magnetic field near the case causes the magnet to be detected by the sensor. Position detection may be wrong. In this case, since an appropriate position cannot be detected, there is a problem that a parameter value different from the original is set.

  Moreover, the apparatus of patent document 1 is comprised by assembling | attaching a rotation ring rotatably to a completely sealed case. Since the rotating ring is frequently rotated when changing the parameter value settings, there is a possibility that a gap will be formed between the rotating ring and the case that fine dust will enter the case. .

  The present invention has been made in view of such a background, and provides a magnetic setting device capable of appropriately performing predetermined setting while maintaining hermeticity, and an inclinometer using the magnetic setting device. The task is to do.

  In order to solve the above-described problem, the magnetic setting device according to claim 1 of the present invention detects at least one magnetism and outputs a detection value corresponding to the detected S-pole or N-pole. The setting means including the magnetic detection means described above is separate from the setting means, and is built in such a manner that the S pole or the N pole faces the position of the magnetic detection means when superimposed on the setting means. A key means having at least one magnet, and the magnetic means when the key means is overlapped with the setting means and the S or N pole of the magnet is combined with the magnetism detecting means in an opposing state. Control means for detecting an output value of the detection means and controlling to perform a predetermined setting according to the detected output value, wherein the key means is at least twice in a different posture from the setting means. When superimposed, the control means The detection pattern of the output value of the magnetic detection means has detected each time superimposed over times, if they match the first pattern of the predetermined output value, and controlling to perform predetermined setting.

  According to this configuration, the key unit can be combined with the setting unit at least twice in different postures to perform predetermined setting and output. For this reason, even if an object having a magnetic field exists in the vicinity of the setting means, the detection pattern of the output value of each Hall element does not match the first pattern due to the influence of the near magnetic field. Therefore, the predetermined setting can be appropriately performed.

In addition, the more different the above-described different combination postures are, the more difficult it is to cause a malfunction for performing a predetermined setting. However, considering the workability of the combination, a realistic and appropriate number of times is desirable. For example, in an environment where there are many near magnetic fields, it is desirable to suppress malfunctions by increasing the number of combinations.
In addition, since the key means for performing the predetermined setting is separate from the setting means, there are no gaps or movable parts for setting numerical values in the setting means, and thus the sealing performance is maintained even after long-term use. can do.

  The invention according to claim 2 is characterized in that, in claim 1, the control of the predetermined setting performed by the control means is control for setting a predetermined numerical value.

  According to this configuration, it is possible to set and output a predetermined numerical value by combining the key means with the setting means at least twice in different postures.

  According to a third aspect of the present invention, in the first or second aspect, the control unit resets the predetermined setting when the detection pattern matches a second pattern having an output value different from the first pattern. Control is performed.

  According to this configuration, the detection pattern of the output value of each Hall element does not match the second pattern due to the influence of the near magnetic field of the setting means. For this reason, a predetermined setting can be reset appropriately.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the setting means includes a housing that contains the magnetic detection means and the control means in a sealed manner.

  According to this configuration, the setting means incorporates the magnetic detection means and the control means in a sealed manner in the casing, and there are no gaps or movable parts in the casing. For this reason, it is applicable to the use which requires airtightness, for example, the use which requires waterproofing.

  The invention according to claim 5 is an inclinometer comprising the magnetic setting device according to any one of claims 1 to 4, having an inclination sensor that measures an inclination angle and outputs the measured angle. When the key means is overlapped at least twice with the setting means in a different posture, the control means has a detection pattern of the output value of the magnetic detection means detected every time the key means is overlapped twice or more. When the first pattern coincides with the first pattern, control is performed to set a predetermined angle.

  According to this configuration, if the inclinometer of the present invention is used for level adjustment required when, for example, the crane truck is shipped or the crane truck is installed, the level adjustment can be performed easily and appropriately.

  The invention according to claim 6 is the angle measured by the tilt sensor when the control unit sets a predetermined angle when the detection pattern coincides with the first pattern. A difference angle from the set angle is held, and after this holding, control is performed to correct an angle measured by the tilt sensor by subtracting the difference angle from the angle.

  According to this configuration, for example, an inclinometer is placed on the upper surface of a specific device that requires angle setting, and a key unit is combined with the inclinometer, and a predetermined angle (for example, 0 degree) is set on the inclinometer (first time After setting), the following effects can be obtained. At the time of the initial setting, the difference angle (0.5 degrees) between the angle (0.5 degrees) measured by the tilt sensor and the angle (0 degrees) set for the first time is held.

Therefore, when the specific device is installed in another place, when the angle of the upper surface of the specific device is adjusted to the angle (0 degree) set for the first time, the angle measurement is performed by placing an inclinometer on the upper surface. At this time, if the angle measured by the tilt sensor is 0.5 degrees, for example, 0.5 degrees of the difference angle is subtracted from the 0.5 degrees and corrected to 0 degrees. This 0 degree is output from the inclinometer.
If the predetermined angle is set in the inclinometer in the first time as described above, the inclinometer can be easily set to the initial set angle after the next measurement.

  According to a seventh aspect of the present invention, in the sixth aspect of the present invention, when the detection pattern coincides with a second pattern having an output value different from the first pattern, the control unit calculates the held difference angle. It is characterized by performing control to erase or invalidate.

  According to this configuration, since the held differential angle is erased, a new predetermined angle can be easily and appropriately set in the inclinometer. Further, when the held difference angle is invalidated, it is possible to set another difference angle while keeping the difference angle. As a result, a plurality of differential angles can be held, and the differential angles that are invalidated when necessary can be used as valid.

  According to the magnetic setting device and the inclinometer using the magnetic setting device of the present invention, it is possible to appropriately perform a predetermined setting while maintaining hermeticity.

It is a block diagram which shows the structure of the magnetic setting apparatus which concerns on embodiment of this invention. (A) The top view which shows the structure of the setting part in a magnetic type setting apparatus, (b) is a side view of the setting part seen from the arrow Y1 direction shown to (a). (A) is a top view which shows the structure of the magnetic key in a magnetic type setting apparatus, (b) is a side view of the magnetic key seen from the arrow Y2 direction shown to (a). 4 shows the postures of the four patterns when combining the magnetic key in contact with the setting unit, (a) is a plan view showing the first posture of the magnetic key, (b) is a plan view showing the second posture of the magnetic key, (C) is a top view which shows the 3rd attitude | position of a magnetic key, (d) is a top view which shows the 4th attitude | position of a magnetic key. The S pole and N pole of each magnet on the Hall element side and the output value of the Hall element in the four patterns of the magnetic key are shown, and (a) shows the output of the S pole and N pole of each magnet and the Hall element in the first posture. The figure which shows a value, (b) is a figure which shows the S pole and N pole of each magnet in a 2nd attitude | position, and the output value of a Hall element, (c) is the S pole and N pole of each magnet in a 3rd attitude | position, and a Hall element (D) is a figure which shows the output value of the south pole of each magnet in a 4th attitude | position, and an output value of a Hall element. It is a block diagram which shows the connection relationship of the Hall element in a setting part, a control part, and a memory | storage part. It is a figure which shows the 4-bit output value of each Hall element in a 1st-4th attitude | position, the hexadecimal number which converted the 4-bit value, and the decimal number corresponding to this. It is a flowchart for demonstrating the operation | movement at the time of setting a numerical value to a setting part with a magnetic key in the magnetic type setting apparatus of this embodiment. It is a flowchart for demonstrating the operation | movement at the time of resetting a numerical value to a setting part with a magnetic key in the magnetic setting apparatus of this embodiment. (A) is a top view which shows the structure of the inclinometer to which the setting part of the magnetic type setting apparatus of this embodiment is applied, (b) is a side view of the inclinometer seen from the arrow Y3 direction shown to (a). It is a block diagram which shows the connection relationship of the Hall element in a clinometer, a control part, a memory | storage part, and a inclination sensor. It is a side view of a crane vehicle.

Next, an embodiment of the present invention (hereinafter referred to as “embodiment”) will be described.
<Configuration of Embodiment>
FIG. 1 is a block diagram showing a configuration of a magnetic setting device according to an embodiment of the present invention.
A magnetic setting device 1 shown in FIG. 1 includes a setting unit 10 and a plate-like magnetic key 30, and is used by combining the magnetic key 30 in contact with the setting unit 10. . The setting unit 10 constitutes the setting means described in the claims, and the magnetic key 30 constitutes the key means described in the claims.

  The configuration of the setting unit 10 will be described with reference to FIG. FIG. 2A is a plan view showing the configuration of the setting unit 10, and FIG. 2B is a side view of the setting unit 10 viewed from the direction of the arrow Y1 shown in FIG.

  The setting unit 10 includes a printed circuit board (simply referred to as a substrate) 14 indicated by a broken line, a plurality of (four in this example) Hall elements HA, HC, HE, HF, a control unit, inside a rectangular parallelepiped housing 11. 15 and a storage unit 16. The substrate 14, the hall elements HA to HF, the control unit 15, and the storage unit 16 are accommodated in a sealed (or waterproof) form in the housing 11. The casing 11 may be made of a material that transmits the lines of magnetic force. The Hall elements HA to HF constitute the magnetic detection means described in the claims. Further, the control unit 15 and the storage unit 16 constitute the control means described in the claims.

  In addition, the setting unit 10 has a connector 12 for connecting the cable 13 to the wiring of the substrate 14 attached to the outer side surface of the housing 11 without a gap. The upper surface portion in the vicinity of the side surface of the housing 11 to which the connector 12 is attached has a concave opening for attaching the connector 12, and thus is a convex portion 10 a swelled in a rectangular parallelepiped shape. As shown in FIG. 2B, the surface having the convex portion 10a is defined as the upper surface, and the opposite surface is defined as the lower surface. The cable 13 is connected to a power source, a device that uses numerical values set in the setting unit 10, and the like. However, the power source (battery) may be built in the setting unit 10.

As shown in FIG. 2A, the hall elements HA to HF are mounted in a predetermined state at a predetermined position on the upper surface side of the substrate 14. The Hall elements HA to HF are preferably arranged in a non-rotational symmetry, but may be arranged in a manner other than the non-rotational symmetry. Each of the Hall elements HA to HF is named in the order of HC, HE, and HF counterclockwise (counterclockwise) from the upper left HA.
In the case of the present embodiment, the Hall element HA is mounted at the upper left corner of the rectangular surface indicated by the broken line of the substrate 14, the Hall element HC at the lower left corner, the Hall element HE at the upper and lower middle positions, and the Hall element HF at the upper right corner. Has been implemented.

  Each Hall element HA to HF detects the S pole when the S pole of the magnet approaches a predetermined distance, and its output value becomes the “L” level (also referred to as “L”). Further, the Hall elements HA to HF detect the N pole when the N pole approaches a predetermined distance, the output value thereof becomes the “H” level (also referred to as “H”), and “H” even when there is no magnetic field. " However, “L” is also expressed as “0” and “H” as “1”. The output value “0” or “1” of each Hall element HA to HF is output to the control unit 15. The control unit 15 and the storage unit 16 will be described later.

  However, each Hall element HA to HF described that the output value is “L” when detecting the S pole, the output value is “H” when detecting the N pole, and “H” when there is no magnetic field. It is also possible for this to function at the opposite level. It is also possible to change the pattern of the output values of the hall elements HA to HF by changing the arrangement of the magnets.

  Next, the configuration of the magnetic key 30 will be described with reference to FIG. FIG. 3A is a plan view showing the configuration of the magnetic key 30, and FIG. 3B is a side view of the magnetic key 30 viewed from the direction of the arrow Y2 shown in FIG.

The magnetic key 30 is formed of a material such as plastic that transmits magnetic field lines into a square plate shape, and includes a plurality of (six in this example) magnets MA, MB, MC, MD, ME, and MF indicated by broken lines. It has a configuration.
The magnetic key 30 has a cutout portion 30a in which one corner is cut obliquely among four corners of a quadrangular shape, one side surface of two side surfaces sharing the cutout portion 30a, A side surface opposite to the side surface has a first recess 30b and a second recess 30c obtained by cutting a side surface portion into a concave shape.

  As shown in FIG. 4, the first and second concave portions 30 b and 30 c have a concave shape with a dimension to which the convex portion 10 a of the setting portion 10 is fitted. The first and second recesses 30b and 30c and the notch 30a can define the postures of a plurality of patterns when the magnetic key 30 is brought into contact with the setting unit 10 and combined. In this embodiment, there are four patterns shown in FIGS. 4A to 4D.

  First, as shown in FIG. 4A, the magnetic key 30 is brought into contact with the setting unit 10 in a state where the notch 30a is located at the upper left corner and the convex portion 10a is fitted to the first concave portion 30b. The combination is defined as the first posture of the magnetic key 30. In the magnetic key 30 in the first posture, as shown in FIG. 3B, the upper surface side is defined as the A surface and the lower surface side is defined as the B surface. That is, in the first posture, the B surface of the magnetic key 30 is brought into contact with the upper surface of the setting unit 10.

  As shown in FIG. 4B, the B surface of the magnetic key 30 where the A surface is visible in a state where the notch 30a is located in the lower right corner and the convex portion 10a is fitted in the second concave portion 30c. A case where the magnetic key 30 is combined in contact with the upper surface of the setting unit 10 is defined as the second posture of the magnetic key 30.

  As shown in FIG. 4C, the A surface of the magnetic key 30 where the B surface is visible in a state where the notch 30a is located in the upper right corner and the convex portion 10a is fitted in the second concave portion 30c. A case where the magnetic key 30 is combined in contact with the upper surface of the setting unit 10 is defined as a third posture of the magnetic key 30.

  As shown in FIG. 4D, the A surface of the magnetic key 30 where the B surface is visible in a state where the notch 30a is located in the lower left corner and the convex portion 10a is fitted to the first concave portion 30b. The combination with the upper surface of the setting unit 10 is defined as the fourth posture of the magnetic key 30.

  Further, in the magnetic key 30, six magnets MA, MB, MC, MD, ME, and MF indicated by broken lines in FIG. 3A are arranged in a matrix of 3 rows and 2 columns (rectangular shape). ing. When the magnetic key 30 is in the first posture, the magnet MA is disposed in the vicinity of the notch 30a in the upper left corner with the north pole facing the A plane, and is counterclockwise (counterclockwise) from the magnet MA at this disposed position. Are arranged in the order of magnets MB, MC, MD, ME, and MF.

That is, on the rectangular A surface side of the magnetic key 30, the magnet MA is disposed in the vicinity of the notch 30a in the upper left corner, the magnet MB is the central portion on the left side, the magnet MC is the lower left corner, the magnet MD is the lower right corner, the magnet ME is arranged in the central part on the right side, and magnet MF is arranged in the upper right corner.
Further, the magnet MA faces the N pole, the magnet MB faces the S pole, the magnet MC faces the S pole, the magnet MD faces the N pole, the magnet MD faces the S pole, and the magnet MF faces the A surface side of the magnetic key 30. It is arranged with the north pole facing. In such an arrangement, each of the magnets MA to MF has the S pole and the N pole on the A side and the B side in the same magnet, as shown in FIG. And the opposite polarity.

  In addition, as shown in FIGS. 4A to 4D, the magnets MA to MF are symmetrical with respect to the arrangement relationship between the S pole and the N pole facing the same surface of the A or B surface of the magnetic key 30. Further, it is preferable that they are arranged so as to be asymmetric which is not rotationally symmetric.

  As shown in FIGS. 5A to 5D, by combining such a magnetic key 30 on the upper surface of the setting unit 10 in the first to fourth postures, the output values of the Hall elements HA to HF can be obtained. As will be described later, the value is “0” or “1” corresponding to the first to fourth postures. Hall elements HA to HF are also simply referred to as elements HA to HF.

  That is, as shown in FIG. 5A, it is assumed that the magnetic key 30 is combined in contact with the setting unit 10 in the first posture. In this case, the south pole of the magnet MA is close to the Hall element HA, and the output value of the element HA becomes “0”. Further, the N pole of the magnet MC is close to the Hall element HC, the output value of the element HC is “1”, the N pole of the magnet ME is close to the Hall element HE, the output value of the element HE is “1”, and the magnet MF The S pole of this element is close to the Hall element HF, and the output value of the element HF becomes “0”.

  Similarly, as shown in FIGS. 5B to 5D, when the magnetic key 30 is in contact with the setting unit 10 in the second to fourth postures, the output values of the Hall elements HA to HF are illustrated. The value becomes “0” or “1”. However, when the magnetic key 30 is combined with the setting unit 10, the Hall elements HA to HF may be close to each other so that the magnetic poles can be detected even if they are not completely in contact with each other.

  The S poles and N poles of the six magnets MA to MF of the magnetic key 30 and the four Hall elements HA to HF of the setting unit 10 are the first shown in FIGS. As in the fourth posture, when the surfaces are brought into contact with each other and combined, the combination relationship is not rotationally symmetric. In other words, they are arranged so as to be non-rotational symmetric.

  The output value “0” or “1” of each Hall element HA to HF is output to the control unit 15 as shown in FIG. For example, a microcontroller (or a microcomputer) is applied to the control unit 15. In this case, although not shown, the output terminals of the Hall elements HA to HF are pulled up to the power supply voltage via a 10 kΩ resistor and connected to the input / output terminals of the microcomputer. The pull-up is to prevent the “L” level (output value “0”) of the output signals of the Hall elements HA to HF from rising and being unable to be properly read as “L” by the microcomputer. .

  As shown in FIG. 7, the control unit 15 detects the output value “0” or “1” of the four Hall elements HA, HC, HE, and HF as 4 bits, and the 4-bit value is expressed in hexadecimal. Convert to numerical value (hexadecimal number). More specifically, the output value of the Hall element HA is regarded as MSB (Most Significant Bit) and HF is regarded as LSB (Least Significant Bit), and from the MSB side in the order of HA, HC, HE, HF. Detection is performed by a 4-bit binary number, and the 4-bit value is converted into a hexadecimal number. In FIG. 7, a decimal number is written in parentheses next to the hexadecimal number for easy recognition.

  More specifically, when the magnetic key 30 is combined with the setting unit 10 in the first posture, the control unit 15 outputs 4 of the output values “0, 1, 1, 0” of the Hall elements HA, HC, HE, and HF. The bit value is converted into a hexadecimal number Ox6 (= 6). When combined in the second attitude, the 4-bit values of the output values “0, 0, 1, 1” of the Hall elements HA, HC, HE, and HF are converted into hexadecimal numbers Ox3 (= 3). When combined in the third attitude, the 4-bit values of the output values “1, 1, 0, 1” of the Hall elements HA, HC, HE, and HF are converted into hexadecimal numbers OxD (= 13). When combined in the fourth attitude, the 4-bit values of the output values “0, 1, 0, 1” of the Hall elements HA, HC, HE, and HF are converted into hexadecimal numbers Ox5 (= 5).

When the magnetic key 30 is not in contact with the setting unit 10 (when there is no key), the output values of the hall elements HA, HC, HE, and HF are “1, 1, 1, 1”. Therefore, the control unit 15 converts the 4-bit value “1, 1, 1, 1” into the hexadecimal number OxF (= 15).
The control unit 15 may convert the 4-bit output values of the Hall elements HA, HC, HE, and HF into decimal numbers other than hexadecimal numbers, octal numbers, and binary numbers.

  Next, the control unit 15 outputs the 4-bit output value from each Hall element HA, HC, HE, HF when the magnetic key 30 is combined with the setting unit 10 in a predetermined order of the first to fourth postures. Detection is performed in order, and each hexadecimal value obtained by converting the detected output value is obtained. Further, the control unit 15 uses the first pattern (for example, the hexadecimal value of each of the first, second, third, and fourth postures) that the detection pattern based on the obtained hexadecimal value and order is stored in advance. And a pattern in accordance with the order), a predetermined numerical value is stored in the storage unit 16 and is controlled to be set (set).

Therefore, the control unit 15 does not store the numerical value in the storage unit 16 when the detection pattern is different from the first pattern.
Note that a storage device such as a RAM (Random Access Memory) or a flash memory (not shown) is used for the storage unit 16.

  In addition, the control unit 15 has a second detection pattern of output values of the hall elements HA, HC, HE, and HF different from the first pattern when the magnetic key 30 is sequentially combined with the setting unit 10 in each posture. Control is performed to reset the storage unit 16 when it matches a pattern (for example, a pattern based on hexadecimal values and order of the third, fourth, first, and second postures). As the reset value, a predetermined numerical value such as “Ox0” or “OxF” is used.

Therefore, the control unit 15 does not reset the storage unit 16 when the detection pattern is different from the second pattern.
The first and second patterns when the operator performs setting or reset are preferably patterns that are easy for the operator to memorize.

  The storage unit 16 outputs a numerical value NV corresponding to the hexadecimal number set as described above. The numerical value NV is displayed on a display unit (not shown) or output to a device (not shown) using the numerical value NV via the cable 13 (see FIG. 2). The numerical value NV may be a decimal number that can be easily recognized by a person, a parameter value, a character, a character string, or a symbol when displayed on the display unit. In the present invention, the numerical value NV includes parameter values, characters, character strings, symbols, and the like. In addition, the n-ary number when the control unit 15 converts the output values of the Hall elements HA, HC, HE, and HF can be arbitrarily changed.

<Operation of Embodiment>
Next, the setting operation of the numerical value NV by the magnetic setting device 1 according to the present embodiment will be described.
However, it is assumed that the number of combinations for setting or resetting the numerical value NV in the storage unit 16 by combining the magnetic key 30 with the setting unit 10 is four. Further, it is assumed that a predetermined numerical value NV to be set is Ox0 (= 0), and a reset value is OxF (= 15). Further, it is assumed that the first pattern used by the control unit 15 at the time of setting is the hexadecimal number and order of the first, second, third, and fourth postures shown in FIG. Further, it is assumed that the second pattern used by the control unit 15 at the time of reset is the hexadecimal numbers and the order of the third, fourth, first, and second postures.

First, in the magnetic setting device 1, the operation when setting a predetermined numerical value NV {Ox0 (= 0)} in the setting unit 10 with the magnetic key 30 will be described with reference to the flowchart shown in FIG. To do.
In step S1 shown in FIG. 8, it is assumed that the operator sets the numerical value, and the magnetic key 30 is combined with the setting unit 10 by contacting with the setting unit 10 four times in different postures.

  In step S2, the control unit 15 detects the output values of the Hall elements HA, HC, HE, and HF when they are combined four times in that order, and converts these detected output values into hexadecimal numbers.

  Next, in step S3, the control unit 15 determines whether or not the detected value that is the value and order of each hexadecimal number detected in step S2 matches the first pattern. If the result of this determination is that they do not match, the process returns to step S1. In this case, the operator redoes the combination of the magnetic key 30 with the setting unit 10 so as to be in the first pattern posture order.

  On the other hand, if they match, in step S4, the control unit 15 stores and sets Ox0 (= 0) of a predetermined numerical value NV in the storage unit 16. The storage unit 16 outputs Ox0 (= 0) of the set numerical value NV.

Next, in the magnetic setting device 1, an operation when the numerical value NV set in the setting unit 10 is reset with the magnetic key 30d will be described with reference to a flowchart shown in FIG.
In step S11 shown in FIG. 9, it is assumed that the operator has combined the magnetic key 30 in contact with the setting unit 10 four times in different postures in order to reset the numerical values.

  In step S12, the control unit 15 detects the output values of the Hall elements HA, HC, HE, and HF when combined four times in that order, and converts the detected output values into hexadecimal numbers.

  Next, in step S13, the control unit 15 determines whether or not the detection pattern based on the value and order of each hexadecimal number detected in step S12 matches the second pattern. If the result of this determination is that they do not match, the process returns to step S11. In this case, the operator redoes the combination of the magnetic key 30 with the setting unit 10 so as to be in the order of the posture of the second pattern.

  On the other hand, if they match, in step S14, the control unit 15 resets Ox0 (= 0) of the numerical value NV set in the storage unit 16. Thus, the reset value OxF (= 15) is stored and output as an initial value in the storage unit 16.

<Effect of embodiment>
As described above, the magnetic setting device 1 according to the present embodiment includes the setting unit 10 and the magnetic key 30, and the setting unit 10 includes the control unit 15 and the storage unit 16.

  The setting unit 10 includes a plurality of Hall elements HA to HF arranged on a plane.

  The magnetic key 30 has a plurality of magnets MA to MF built in so as to coincide with any position of the Hall elements HA to HF, and the S pole and N of the magnets MA to MF facing the Hall elements HA to HF. Each of the magnets MA to MF is paired with each of the Hall elements HA to HF so that the arrangement of the poles is non-rotationally symmetric.

  When the magnetic key 30 is combined with the setting unit 10 at least twice so that the combination of the south and north poles of the magnets MA to MF facing the hall elements HA to HF is different every time the combination is made. When the detection pattern of the output value of each Hall element HA to HF obtained for each combination matches the first pattern of the predetermined output value, a predetermined numerical value is stored in the storage unit 16 and set.

  According to this configuration, it is possible to set and output the predetermined numerical value NV by combining the magnetic key 30 with the setting unit 10 at least twice in different postures. For this reason, even if an object having a magnetic field exists in the vicinity of the setting unit 10, the detection patterns of the output values of the Hall elements HA to HF do not match the first pattern due to the influence of the near magnetic field. For this reason, the predetermined numerical value NV can be set appropriately.

  In addition, the control unit 15 is set in the storage unit 16 when the detection pattern of the output value of each Hall element HA to HF obtained for each combination matches the second pattern of the output value different from the first pattern. The numerical value NV is controlled to be reset.

  According to this configuration, the detection pattern of the output value of each Hall element HA to HF does not match the second pattern due to the influence of the near magnetic field of the setting unit 10. For this reason, the set numerical value can be reset appropriately.

The setting unit 10 is configured to include a housing in which the Hall elements HA to HF, the control unit 15 and the storage unit 16 are sealed.
According to this configuration, the setting unit 10 incorporates the Hall elements HA to HF, the control unit 15 and the storage unit 16 in a sealed manner in the housing, and is electrically connected by the contact (or proximity) of the magnetic key 30. The numerical value NV can be set without any change. Accordingly, there are no gaps or movable parts in the casing, so that no gaps are generated due to deterioration in use. For this reason, it is applicable to the use which requires airtightness, for example, the use which requires waterproofing.

  In addition, in the above embodiment, an example in which six magnets MA, MB, MC, MD, ME, and MF are arranged in a matrix of 3 rows and 2 columns inside the magnetic key 30 (FIG. 3). Indicated. In the setting unit 10, Hall elements HA, HC, HE, and HF are arranged at positions corresponding to the magnets MA, MC, ME, and MF among the matrix-like six magnets MA to MF. An example is shown.

  As described above, the arrangement of the magnets and the hall elements is such that the south and north poles of the magnets MA to MF of the magnetic key 30 and the hall elements HA to HF of the setting unit 10 are as shown in FIG. ) To (d), as long as they are in contact with each other and combined as in the first to fourth postures, the combination relationship may be an arrangement relationship that does not become rotationally symmetric. In other words, it may be non-rotationally symmetric.

  Accordingly, the magnetic key 30 has a plurality of magnets arranged in a matrix of m rows and n columns, and the setting unit 10 has positions corresponding to a plurality of each of the magnets in a matrix of m rows and n columns. It is sufficient that a plurality of Hall elements are arranged.

  Moreover, in the said embodiment, the magnetic key 30 was combined with the setting part 10 like the 1st-4th attitude | position shown to Fig.5 (a)-(d). That is, the magnetic key 30 is rotated 180 degrees on the A or B surface and combined with the setting unit 10, but a method of rotating the magnetic key 30 by an arbitrary angle such as 90 degrees may be used.

  In the above description, the Hall elements HA to HF are described as an example of the magnetic detection means. However, the magnetic detection means may be the following elements or sensors, but is not limited thereto. is not. That is, it may be a magnetoresistive effect element, a magneto-impedance element {MI (Magneto-Impedance element) element}, or the like.

  However, magnetoresistive elements include MR (Magneto Resistive effect) elements, AMR (anisotropic magnetoresistance) elements, GMR (Giant Magneto Resistive) elements, TMR (Tunneling Magneto-resistive) elements, and the like.

<Application example of embodiment>
FIG. 10A is a plan view showing the configuration of the inclinometer 50 to which the setting unit 10 of the magnetic setting device 1 according to the embodiment of the present invention is applied, and FIG. 10B is a view from the direction of the arrow Y3 shown in FIG. FIG. However, the inclinometer 50 is provided with the magnetic key 30 (FIG. 3) as a pair. Moreover, the control part 15a of the setting part 10 also performs control different from the control part 15 {FIG. 2 (b)} described above as described later.

  The inclinometer 50 includes an inclination sensor 52 that measures an inclination angle and the setting unit 10 described above inside a sealed (or waterproof) casing 11a. In the inclinometer 50, as shown in FIG. 10B, the surface having the convex portion 10a is the upper surface, the opposite surface is the lower surface, and the inclination sensor 52 is disposed on the lower surface side.

  The tilt sensor 52 is a tilt sensor formed by a known technique. For example, the tilt sensor 52 has two electrodes arranged in an array on a substrate, one electrode being a fixed electrode and the other electrode being a movable electrode. The movable electrode is made possible by attaching an electrode to a spring spring. Further, the tilt sensor 52 is based on the electrostatic capacitance when the tilt sensor 52 is horizontal, and when the tilt sensor is tilted, the position of the movable electrode varies with respect to the fixed electrode, and the capacitance of the capacitance that changes due to this variation. The amount of change is converted into an angle, and the tilt angle is measured.

  As shown in FIG. 11, the angle θ1 measured by the tilt sensor 52 is output to the control unit 15a. The control unit 15a performs control to store the angle θ1 in the storage unit 16 as the angle θ2. The storage unit 16 outputs the stored angle θ2. Whenever the angle θ1 input from the tilt sensor 52 is different, the control unit 15a performs control to overwrite the storage unit 16 with the different angle θ1 as the angle θ2.

  Further, as described above, the control unit 15a is configured so that the operator can set each angle when the magnetic key 30 (FIG. 3) is combined with the setting unit 10 of the inclinometer 50 in contact with each other four times in different postures. The output values of the Hall elements HA, HC, HE, and HF are detected in that order, and the detected output values are converted into hexadecimal numbers. Further, the control unit 15a determines that the detection pattern based on the converted hexadecimal value and order is the first pattern (for example, each hexadecimal number in the first, second, third, and fourth postures shown in FIG. 7). Value and order) are determined by collation. However, the first pattern is held in advance in a memory unit (not shown) in the control unit 15. Hereinafter, the memory unit in the control unit 15 is simply referred to as a memory unit.

  If they match as a result of the collation, the control unit 15a corrects the angle (measured angle) θ1 input from the tilt sensor 52 to a predetermined set angle θ1a, and stores the corrected angle θ2 in the storage unit 16. set. At this time, the difference between the measured angle θ1 and the set angle θ1a is stored in the memory unit as the difference angle θ1b. The set angle θ1a is set to 0 degrees as an example in the following, but may be an arbitrary angle such as 10 degrees.

  For example, when the set angle θ1a = 0 degrees and the actually measured angle θ1 = 2 degrees, the control unit 15a corrects the actually measured angle θ1 = 2 degrees to the set angle θ1a = 0 degrees when the above-described matching results match. The corrected angle θ2 = 0 degree is set in the storage unit 16. At this time, a difference angle θ1b = 2 degrees obtained by subtracting the set angle θ1a = 0 degrees from the actually measured angle θ1 = 2 degrees is held in the memory unit.

  Further, after setting the angle θ2 to the storage unit 16, the control unit 15a subtracts the differential angle θ1b from the input actual measurement angle θ1 every time an actual measurement angle θ1 different from the conventional one is input from the tilt sensor 52. To correct. The angle θ2 obtained by this correction is set in the storage unit 16.

  Next, as described above, the control unit 15a is used when the operator combines the magnetic key 30 with the setting unit 10 of the inclinometer 50 in contact with the setting unit 10 four times in a posture different from that at the time of setting. The output values of the hall elements HA, HC, HE, and HF are detected in that order, and the detected output values are converted into hexadecimal numbers. Further, the control unit 15a uses the second pattern (for example, the third, fourth, first, and first patterns shown in FIG. 7) in which the detection pattern based on the converted hexadecimal value and order is stored in the memory unit in advance. It is determined by collation whether or not it matches the hexadecimal values and order of the two postures.

  If they match as a result of the collation, the control unit 15a erases the difference angle θ1b held in the memory unit and sets it to an initial value (simply referred to as erasure) (sets to 0). Thus, the control unit 15a performs control to output the angle θ1 input from the tilt sensor 52 through the storage unit 16 as it is.

  Further, when the result of the collation is that they match, the control unit 15a may invalidate the difference angle θ1b held in the memory unit. In this case, since the difference angle θ1b held in the memory unit is invalidated, it is possible to set another difference angle while holding the difference angle θ1b. As a result, a plurality of differential angles can be held, and the differential angles that are invalidated when necessary can be used as valid.

<Example of use of inclinometer>
Next, with reference to FIG. 12, the case where the inclinometer 50 is used for the crane vehicle 60 will be described. FIG. 12 is a side view of the crane vehicle 60. The crane 61, which is a construction machine, needs to be placed with the upper surface 62a of the vehicle body 62 held horizontally in order to prevent accidents such as falling. The level of the upper surface 62a of the vehicle body is defined (manufacturer-defined) by an administrator of a construction machine manufacturer at an assembly factory or the like. At this time, the inclinometer (70) has been conventionally used. However, since the parallelism between the vehicle body upper surface 62a and the inclinometer mounting surface 63a does not appear, when the vehicle body upper surface 62a is in a manufacturer-defined horizontal state, the inclinometer The mounting surface 63a is not horizontal. For example, when the vehicle body upper surface 62a is in a manufacturer-defined horizontal state (for example, 0 degrees), the inclinometer mounting surface 63a is 0.5 degrees.

  In the present state (conventional), the angle measured by the inclinometer (70) placed on the inclinometer mounting surface 63a inclined by 0.5 degrees is 0.5 degrees, so the inclinometer mounting surface 63a and the inclinometer ( 70) to adjust the output value of the inclinometer (70) to be horizontal (inclination angle = 0 degree). For this reason, it takes time for adjustment.

  The case where the inclinometer 50 of this embodiment is used is demonstrated. However, the inclinometer 50 measures the angle in the X direction and the Y direction on the XY plane, but will be described as measuring either one of the angles.

  First, the inclinometer 50 is placed on the inclinometer mounting surface 63a inclined by 0.5 degrees. Next, the operator sets the angle by setting the magnetic key 30 (FIG. 3) in contact with the setting unit 10 (FIG. 10) of the inclinometer 50 four times with different predetermined postures. With each combination, the control unit 15a of the inclinometer 50 detects the output values of the Hall elements HA, HC, HE, and HF in the order of the combination and converts them into hexadecimal numbers. Further, the control unit 15 collates whether or not the detected detection value based on the converted hexadecimal value and order matches the first pattern.

  If they match as a result of the collation, the control unit 15a corrects the measured angle θ1 = 0.5 degrees input from the tilt sensor 52 to the set angle θ1a = 0 degrees, and the corrected angle θ2 = 0 degrees. Is set in the storage unit 16. At this time, the difference angle θ1b = 0.5 degrees between the actually measured angle θ1 = 0.5 degrees and the set angle θ1a = 0 degrees is held in the memory unit.

The held differential angle θ1b = 0.5 degrees is used as follows when the crane 60 is fixed horizontally on the site after setting the angle θ2.
When the crane vehicle 60 is installed on the site, the body of the crane vehicle 60 is installed at a predetermined position on the site and is visually leveled.

  Next, the angle measurement function of the inclinometer 50 is turned on. In this case, if the measured angle θ1 of the tilt sensor 52 of the inclinometer 50 placed on the inclinometer mounting surface 63a is 1.5 degrees, the difference angle θ1b = 0.5 degrees from the measured angle θ1 = 1.5 degrees. Is subtracted, and this angle θ2 = 1 degree is set in the storage unit 16 and output. In this case, the display unit displays the tilt angle as 1 degree.

  Therefore, the angle of the vehicle body upper surface 62a is adjusted by the four outriggers 64 that adjust the level of the vehicle body so that the display angle of the inclinometer 50 becomes 0 degrees. As a result of this adjustment, when the measured angle θ1 of the tilt sensor 52 of the inclinometer 50 placed on the inclinometer mounting surface 63a becomes 0.5 degrees, the difference angle θ1b = 0.5 from the measured angle θ1 = 0.5 degrees. The degree is subtracted, and the same angle θ2 = 0 degrees as the set angle θ1a set at the time of shipment is set in the storage unit 16 and output. The display unit displays an inclination angle of 0 degrees (horizontal).

  In this way, if the inclinometer 50 is used for level adjustment required at the time of shipment of the crane truck 60, installation of the crane truck 60, etc., the level adjustment can be performed easily and appropriately.

Even when the set angle θ2 is reset, it can be easily and properly reset by combining the magnetic key 30 with the setting unit 10 of the inclinometer 50 four times in a posture pattern different from that at the time of setting. Can do.
In addition, the inclinometer 50 can also be used for robots, industrial machines, and the like that require horizontal adjustment and adjustment at a predetermined angle.

  In addition, in the embodiment described above, the specific configuration can be appropriately changed without departing from the gist of the present invention.

<Other application examples of the embodiment>
The magnetic setting device 1 can be applied as follows in addition to the inclinometer 50. In the inclinometer 50, the position (angle) at which the horizontal is output is an important reference, but there is an important reference position in other position detection techniques. For example, a linear displacement sensor and a rotation angle sensor are used for detecting the position of a drive unit of an industrial machine. Even in these sensors, when the drive unit of the industrial machine comes to a specific reference position, it is desirable to set a reference output (reference value) and output the set reference value.

  In such a case, in the case of a linear displacement sensor or a rotation angle sensor using the magnetic setting device 1, the magnetic key 30 (see FIG. 1) is driven after the drive unit of the assembled industrial machine is driven to the reference position. ) Are combined with the linear displacement sensor or the rotation angle sensor setting unit 10 (see FIG. 1) a predetermined number of times in different posture patterns and combined to set the current position of the linear displacement sensor or the rotation angle sensor as the reference position. A pattern is output from the Hall elements HA, HC, HE, and HF (see FIG. 11). This pattern is detected by the control unit 15a (see FIG. 11), collated with a predetermined pattern (the first pattern described above), and the reference value is stored in the storage unit 16 (see FIG. 11). Can be set.

DESCRIPTION OF SYMBOLS 1 Magnetic type setting apparatus 10 Setting part 10a Convex part 11,11a Case 12 Connector 13 Cable 14 Board | substrate 15 Control part 16 Memory | storage part 30 Magnetic key 30a Notch part 30b 1st recessed part 30c 2nd recessed part 50 Inclinometer 52 Inclination sensor HA , HC, HE, HF Hall element MA, MB, MC, MD, ME, MF Magnet

Claims (7)

Setting means including at least one or more magnetic detection means for detecting magnetism and outputting a detection value corresponding to the detected magnetic S pole or N pole;
Key means having at least one or more magnets which are separate from the setting means and are built in such a way that the S pole or N pole faces the position of the magnetic detection means when superimposed on the setting means. ,
When the key means is overlapped with the setting means and the S pole or N pole of the magnet is combined with the magnetism detection means in an opposed state, the output value of the magnetism detection means is detected and the detected output Control means for controlling to perform a predetermined setting according to a value;
With
When the key unit is superimposed on the setting unit at least twice in a different posture, the control unit detects a detection pattern of the output value of the magnetic detection unit detected every time the key unit is superimposed twice or more. A magnetic setting device that controls to perform a predetermined setting when the output value matches the first pattern. The magnetic setting device according to claim 1, wherein the control of the predetermined setting performed by the control means is a control of setting a predetermined numerical value. 3. The control unit according to claim 1, wherein the control unit performs control to reset the predetermined setting when the detection pattern coincides with a second pattern having an output value different from that of the first pattern. Magnetic setting device. The magnetic setting device according to any one of claims 1 to 3, wherein the setting means includes a casing that houses the magnetic detection means and the control means in a sealed manner. An inclinometer comprising the magnetic setting device according to any one of claims 1 to 4, having an inclination sensor that measures an angle of inclination and outputs the measured angle,
When the key unit is superimposed on the setting unit at least twice in a different posture, the control unit detects the detection pattern of the output value of the magnetic detection unit detected every time the key unit is superimposed twice or more. An inclinometer using a magnetic setting device that controls to set a predetermined angle when it matches one pattern. The control means holds a difference angle between the angle measured by the tilt sensor and the set angle when a predetermined angle is set when the detection pattern matches the first pattern. The inclinometer using the magnetic setting device according to claim 5, wherein after the holding, an angle measured by the tilt sensor is controlled by subtracting the difference angle from the angle. The control means performs control to erase or invalidate the held difference angle when the detection pattern matches a second pattern having an output value different from that of the first pattern. An inclinometer using the magnetic setting device according to claim 6.

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