JP2014092921A - Operation terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation terminal capable of appropriately operating a control object according indirect swing operation, even if the control object is not directly held by a hand.SOLUTION: A smart key 2 is equipped with a three-axis acceleration sensor for detecting acceleration added in three axial directions orthogonal to each other, and a three-axial angle speed sensor for detecting angle speed. While the acceleration with grounding during walking is detected, a direction of gravity which the smart key 2 receives is determined. When swing operation for rotating the smart key 2 so as to apply centrifugal force along a plane surface orthogonal to a gravity direction is carried out, and when swing operation for linearly displacing the smart key 2 along the plane surface orthogonal to the gravity direction is carried out, vehicle action assigned to each swing operation is required.

Description

  The present invention includes a triaxial acceleration sensor that detects acceleration applied in three axial directions orthogonal to each other and a triaxial angular velocity sensor that detects angular velocity, and is defined as an input operation in which acceleration and angular velocity are detected by each sensor. The present invention relates to an operation terminal that operates a control target based on a swing operation.

  Patent Document 1 discloses an operation terminal that operates a vehicle based on an input operation based on a combination of these when a swing operation is performed with a switch operation. For example, when a swing operation is performed in the opening direction of the slide door with the operation of the unlock switch, the direction of the swing operation on the assumption that the operation terminal is gripped in the reference direction is detected by the acceleration sensor, A remote operation signal for requesting the opening operation of the sliding door assigned in this direction is transmitted, and the opening operation of the sliding door is performed through analysis on the vehicle side.

JP2011-903A

  However, it is necessary to hold the operation terminal in the hand due to the switch operation, and it becomes difficult to perform an input operation in a state where both hands cannot be used (for example, when carrying a baggage or holding an umbrella and holding a bag).

  The present invention has been made paying attention to such problems, and the purpose thereof is to allow the controlled object to be accurately operated in accordance with an indirect swinging operation without being held directly in the hand. Is to provide a simple operation terminal.

  In order to solve the above problems, a three-axis acceleration sensor for detecting acceleration applied in three axial directions orthogonal to each other and a three-axis angular velocity sensor for detecting angular velocity are provided, and an input operation in which acceleration and angular velocity are detected by each sensor. An operating terminal that moves a control target based on a swing operation defined as: a determination unit that determines the direction of gravity received by the operating terminal while detecting the acceleration applied to the operating terminal by the three-axis acceleration sensor And control means for requesting the operation of the control object assigned to the swing operation of the operation terminal along a plane orthogonal to the direction of gravity received by the operation terminal, the control means in the direction of gravity On the other hand, when a swing operation is performed in which the operation terminal is rotated so that centrifugal force works along a plane orthogonal to the plane, and along a plane orthogonal to the direction of gravity. The manipulation terminal is its gist to request and the operation of the control object assigned to each when swing operation to be linearly displaced is made.

  According to this configuration, when a swing operation is performed in which the operation terminal is rotated so that centrifugal force works along a plane orthogonal to the direction of gravity, and the operation terminal along a plane orthogonal to the direction of gravity. Differentiated from when the swing operation is performed in which the angle is linearly displaced. Regardless of the swing operation, it is not always necessary to hold the operation terminal in the hand. For example, the operation of the control target can be requested by swinging the operation terminal while keeping the operation terminal in the bag. Therefore, even if it is not directly held in the hand, the control target can be accurately operated according to an indirect swing operation.

  With respect to the operation terminal, the determination unit detects, by the triaxial acceleration sensor, an acceleration in one axis direction or an acceleration in a combined direction based on a plurality of axis directions that suggests landing accompanying walking of the user who has the operation terminal. At this time, this direction may be determined as the direction of gravity received by the operation terminal.

  According to this configuration, when the user who has the operation terminal walks, the operation terminal is compared with the reference data that suggests that, based on the fact that a relatively large acceleration is given in a specific direction with landing. It is possible to accurately determine the direction of gravity received.

  For the operation terminal, the control means specifies a swing operation of the operation terminal along a plane orthogonal to the direction of gravity received by the operation terminal on the condition that the control terminal is not in a walking state, and is assigned to the swing operation. It is also possible to request the operation of the controlled object.

  According to this configuration, since the landing is not affected by walking, the swing operation can be specified with high accuracy.

  According to the present invention, the control target can be accurately operated in accordance with an indirect swing operation without being held directly in the hand.

The block diagram which shows the structure of a smart key system. The perspective view which shows the structure of a smart key. The schematic diagram which shows the operation | movement at the time of a walk.

Hereinafter, an embodiment of the operation terminal will be described.
As shown in FIG. 1, a smart key (registered trademark) 2 which is an example of an operation terminal is a component of a smart key system 1 applied to a vehicle and is carried as a vehicle key. The smart key 2 is referred to as a portable device because of its possession, and is capable of bidirectional communication with the security device 3 mounted on the vehicle and unidirectional communication with the smart key 2 as a transmission side.

  The smart key 2 includes a reception antenna 21, a reception circuit 22, a microcomputer 23, a transmission circuit 24, a transmission antenna 25, a lock switch 26, an unlock switch 27, an acceleration sensor 28, and an angular velocity sensor 29.

  The receiving antenna 21 is a medium for receiving an interrogation signal transmitted from the security device 3. The reception circuit 22 generates a reception signal while electrically processing the interrogation signal received by the reception antenna 21, and outputs the reception signal to the microcomputer 23.

  The microcomputer 23 includes a nonvolatile memory 23a, and an ID unique to the smart key 2 is stored in the memory 23a. When the reception signal related to the challenge signal is input from the reception circuit 22, the microcomputer 23 generates an original signal including the ID in order to respond to the challenge signal, and outputs the original signal to the transmission circuit 24.

  The transmission circuit 24 generates a response signal while electrically processing the original signal input from the microcomputer 23. The transmission antenna 25 is a medium for transmitting the response signal generated by the transmission circuit 24.

  The lock switch 26 is a push button type switch, and when a pressing operation is performed, a detection signal indicating that an input operation has been performed is output to the microcomputer 23. When the detection signal is input from the lock switch 26, the microcomputer 23 generates an original signal including an operation code for requesting locking of the door lock and the ID, and outputs the original signal to the transmission circuit 24. In this case, the transmission circuit 24 transmits a remote operation signal for requesting locking of the door lock from the transmission antenna 25 while electrically processing the original signal.

  The unlock switch 27 is a push button type switch, and when a pressing operation is performed, a detection signal indicating that an input operation has been performed is output to the microcomputer 23. When the detection signal is input from the unlock switch 27, the microcomputer 23 generates an original signal including an operation code for requesting unlocking the door lock and the ID, and outputs the original signal to the transmission circuit 24. In this case, the transmission circuit 24 transmits a remote operation signal for requesting unlocking of the door lock from the transmission antenna 25 while electrically processing the original signal.

  The acceleration sensor 28 is a medium for detecting acceleration applied in three axial directions orthogonal to each other. On the other hand, the angular velocity sensor 29 is a medium for detecting angular velocities applied in three axial directions orthogonal to each other. The microcomputer 23 detects the acceleration applied to the smart key 2 by the acceleration sensor 28, determines the direction of gravity received by the smart key 2, and is on a plane orthogonal to the direction of gravity received by the smart key 2. The swing operation of the smart key 2 is identified through analysis of detection signals by the acceleration sensor 28 and the angular velocity sensor 29, and the vehicle operation assigned to the swing operation is requested. In this example, when a swing operation is performed in which the smart key 2 is rotated so that a centrifugal force acts along a plane orthogonal to the direction of gravity, a remote operation signal requesting an opening operation of the slide door is transmitted. . On the other hand, when a swing operation is performed in which the smart key 2 is linearly displaced along a plane orthogonal to the direction of gravity, a remote operation signal requesting a closing operation of the slide door is transmitted.

  The security device 3 includes a transmission circuit 31, a transmission antenna 32, a reception antenna 33, a reception circuit 34, and a verification ECU (Electronic Control Unit) 35. The transmission circuit 31 generates an interrogation signal while electrically processing the original signal input from the verification ECU 35. The transmission antenna 32 is a medium for transmitting an interrogation signal generated by the transmission circuit 31 to the periphery of the vehicle.

  The receiving antenna 33 is a medium for receiving a response signal transmitted from the smart key 2 in response to the call signal, and a medium for receiving a remote operation signal from the smart key 2. The reception circuit 34 generates a reception signal while electrically processing the response signal and the remote operation signal received by the reception antenna 33, and outputs the reception signal to the verification ECU 35.

  The verification ECU 35 includes a non-volatile memory 35a, and the ID of the regular smart key 2 suitable for the host vehicle is registered as a reference ID in the memory 35a. When a reception signal related to each of the above signals is input from the reception circuit 34, the verification ECU 35 performs verification of the ID included therein with the reference ID. The verification ECU 35 permits vehicle operations (door lock locking and unlocking, engine starting, sliding door opening and closing operations) on condition that the IDs match.

  As shown in FIG. 2, the smart key 2 is developed in a substantially square plate shape along the X-axis direction, the Y-axis direction, and the Z-axis direction orthogonal to each other, and the short direction is set along the X-axis direction. A longitudinal direction is set along the axial direction, a thickness direction is set along the Z-axis direction, and two XY planes are defined as a front surface and a back surface, respectively. Both the lock switch 26 and the unlock switch 27 are provided on the surface of the smart key 2. The acceleration sensor 28 is a multi-axis acceleration sensor that detects acceleration applied in the three-axis direction, and the angular velocity sensor 29 is a multi-axis acceleration sensor that similarly detects angular velocity applied in the three-axis direction. The smart key 2 is held in a state where the surface is directed upward and the lock switch 26 is located on the back side, for example, in a state where the X-axis direction is placed vertically in a bag. The

Next, the operation of the smart key 2 will be described.
As shown in FIG. 3, when the user walks, a relatively large acceleration is given in a specific direction with landing. When the smart key 2 is held vertically by the user in the bag in the X-axis direction, the acceleration sensor 28 detects an acceleration exceeding the threshold value as the acceleration in the X-axis direction. In this case, the microcomputer 23 determines that the X-axis direction is the direction of gravity received by the smart key 2 by comparison with reference data that suggests acceleration during walking.

  When the user performs a swinging operation to rotate the kite so that centrifugal force works along a plane perpendicular to the direction of gravity (in this case, the YZ plane) near the vehicle, the microcomputer 23 causes the acceleration sensor 28 and the angular velocity sensor to move. The detection signal by 29 is analyzed, and the swing operation by the rotation is specified. Therefore, in this case, a remote operation signal requesting the opening operation of the sliding door is transmitted from the smart key 2, and the opening operation of the sliding door is performed as a result of analyzing the remote operation signal on the vehicle side.

  On the other hand, when a swing operation is performed to linearly displace the eyelid along a plane orthogonal to the direction of gravity, the detection signals from the acceleration sensor 28 and the angular velocity sensor 29 are analyzed by the microcomputer 23, and the swing operation by the straight line is specified. Is done. Therefore, in this case, a remote operation signal for requesting the closing operation of the slide door is transmitted from the smart key 2, and as a result of analyzing the remote operation signal on the vehicle side, the sliding door is closed.

  As another aspect, when the smart key 2 is placed and held in a bag in a reference direction, the Z-axis direction is determined as the direction of gravity through analysis during walking. When the user performs a swing operation to rotate the heel so that centrifugal force acts along a plane orthogonal to the direction of gravity (in this case, the XY plane), the swing operation by the rotation is identified through analysis by the microcomputer 23. Is done. Therefore, in this case, a remote operation signal requesting the opening operation of the sliding door is transmitted from the smart key 2, and the opening operation of the sliding door is performed as a result of analyzing the remote operation signal on the vehicle side. On the other hand, when a swing operation is performed that linearly displaces the kite along a plane orthogonal to the direction of gravity, the swing operation by the straight line is specified through analysis by the microcomputer 23. Therefore, in this case, a remote operation signal for requesting the closing operation of the slide door is transmitted from the smart key 2, and as a result of analyzing the remote operation signal on the vehicle side, the sliding door is closed.

  Similarly, when the smart key 2 is held obliquely in a bag, the direction of gravity received by the smart key 2 is determined through analysis during walking, and the plane perpendicular to the direction of gravity is determined. The sliding door is opened or closed in response to the swinging motion of the eyelids. By the way, in this case, when the acceleration in the combined direction by a plurality of axial directions selected from the X-axis direction, the Y-axis direction, and the Z-axis direction exceeds the threshold with landing, this direction is determined as the direction of gravity.

As described above, according to the present embodiment, the following effects can be obtained.
(1) When the swing operation is performed in which the smart key 2 is rotated so that centrifugal force works along a plane orthogonal to the direction of gravity, and the smart key 2 is moved along a plane orthogonal to the direction of gravity. Differentiation from when a swing operation that is linearly displaced is performed. Regardless of the manner of swinging, it is not always necessary to hold the smart key 2 in the hand, and the vehicle operation can be requested by swinging the smart key 2 while keeping the smart key 2 in the bag. Therefore, even if it is not directly held in the hand, the vehicle can be accurately operated according to an indirect swing operation.

  (2) When a user who has the smart key 2 walks, the smart key 2 receives by comparing with reference data that suggests that a relatively large acceleration is given in a specific direction when landing. The direction of gravity can be accurately determined.

  (3) Regardless of the orientation of the smart key 2 in the cage, if the swing operation of the cage is the swing operation by the rotation, the sliding door is opened, and if the swing operation is by the straight line, The sliding door is closed. For this reason, the user only has to swing and operate the eyelid in a manner in which the intended operation can be obtained without worrying about the direction of the smart key 2. Therefore, operational mistakes can be suppressed and convenience can be improved.

In addition, the said embodiment can also be changed and actualized as follows.
-It may be configured to require the movement of the control object based on the swinging operation of the heel while walking, or after determining the direction of gravity, a plane orthogonal to the direction of gravity, provided that it is not in a walking state The configuration may be such that the swing operation along the line is specified and the operation of the control target assigned to the swing operation is requested. According to the latter structure, since it is not influenced by the landing accompanying walking, the swing operation can be specified with high accuracy.

  The operation to be controlled is not limited to the opening and closing operations of the sliding door, and is not limited to the vehicle operation. For example, it may be a constituent element of a remote keyless entry system applied to a vehicle that does not have an electric sliding door, and may be an operation terminal that locks and unlocks a door lock based on a swing operation. In this case, the lock switch and the unlock switch can be omitted.

  DESCRIPTION OF SYMBOLS 1 ... Smart key system, 2 ... Smart key (operation terminal), 3 ... Security apparatus, 21 ... Reception antenna, 22 ... Reception circuit, 23 ... Microcomputer (determination means, control means), 23a ... Memory, 24 ... Transmission circuit, 25 ... Transmitting antenna, 26 ... Lock switch, 27 ... Unlock switch, 28 ... Acceleration sensor (3-axis acceleration sensor), 29 ... Angular velocity sensor (3-axis angular velocity sensor), 31 ... Transmitting circuit, 32 ... Transmitting antenna, 33 ... Reception antenna 34... Reception circuit 35. Verification ECU 35 a memory.

Claims (3)

A triaxial acceleration sensor for detecting acceleration applied in three axial directions orthogonal to each other and a triaxial angular velocity sensor for detecting angular velocity are provided. Based on a swing operation defined as an input operation for detecting acceleration and angular velocity by each sensor. In the operation terminal that operates the controlled object,
Determining means for determining the direction of gravity received by the operation terminal while detecting the acceleration applied to the operation terminal by the triaxial acceleration sensor;
Control means for requesting the operation of the control object assigned to the swing operation of the operation terminal along a plane orthogonal to the direction of gravity received by the operation terminal,
The control means performs the operation along a plane orthogonal to the direction of gravity when a swing operation is performed in which the operation terminal is rotated so that a centrifugal force acts along a plane orthogonal to the direction of gravity. An operation terminal characterized by requesting an operation of a control object assigned to each when a swing operation in which the terminal is linearly displaced is performed. When the triaxial acceleration sensor detects the acceleration in the uniaxial direction that suggests landing accompanying walking of the user who has the operation terminal or the acceleration in the combined direction of a plurality of axial directions, the determination unit determines the direction. The operation terminal according to claim 1, wherein the operation terminal is determined to be a direction of gravity received by the operation terminal. The control means specifies the swing operation of the operation terminal along a plane orthogonal to the direction of gravity received by the operation terminal on the condition that the control terminal is not in a walking state, and the operation of the control target assigned to the swing operation The operation terminal according to claim 2.