JP2008139957A - Control system and automobile having it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of a conventional control system using rhythm input, wherein secure apparatus operation from the outside of a structure is not allowed in the system since erroneous operation is caused by mischief, noise or the like. <P>SOLUTION: In the control system for controlling operation of an apparatus according to an instruction based on rhythm given by a user, an operation area for inputting rhythm is arranged in a door handle 3 on the outside of an automobile body, and the rhythm input based on vibration, is detected by a cable-shaped piezoelectric sensor 4. In this way, a power window 103a, a room light 103b, and the like installed inside the automobile are operated from the outside of the automobile. For example, if a user notices that a window is left opened after getting off and locking the automobile, the user can close the window without unlocking and getting on the automobile. The control system greatly improved in convenience is thereby provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a control system using a rhythm input that performs an operation related to the rhythm pattern by inputting a predetermined rhythm pattern.

  As a control system using a rhythm input that performs an operation related to the rhythm by inputting a predetermined rhythm, for example, in a car, by inputting an encryption signal registered in advance from the outside of a door When the keyless entry control circuit provided in the vehicle compares the pre-registered and stored encryption code with the input encryption signal and determines that they match, it outputs an output to release the door lock. In a keyless entry device that activates the door lock release actuator to open the door without a key, the door outer handle is used as an encryption signal input means from the outside of the door. An automobile door that is actuated in a signal-unlatching direction to enable input of an encryption signal. Over-less entry system is disclosed in Patent Document 1. In this keyless entry system for automobile doors, a switch element that is activated by an unlatching operation of the outer handle emits a pulse signal corresponding to the operation, and a pulse pattern resulting from repeated unlatching operations is used as an input signal. Then, the number of continuous operations of the outer handle is set as one input, for example, “2” is set as the input twice, and a 4-digit number such as “2, 2, 1, 3” is used for the encryption signal input. The door lock is released. In other words, the control system uses a contact bonding type switch, inputs a personal identification number with the number of operations as a number, and releases a door lock as a single device.

Further, Patent Document 2 discloses a control system that performs device operation control based on an instruction from a user by an input pattern of a plurality of keys. This includes a storage means for storing a plurality of key input patterns, a setting means for selecting and setting one of the plurality of key input patterns stored in the storage means, and a key input means for receiving a key input during a limiting operation. A comparison means for comparing the pattern input by the key input means with the key input pattern set by the setting means, and an operation control means for releasing the restriction of the operation based on the comparison result of the comparison means. With the configuration provided, the operation restriction of the apparatus is canceled by using a password selected by the user as arbitrarily selected from a plurality of key input patterns (see, for example, Patent Documents 1 and 2).
JP 58-222267 A JP 2004-341935 A

  However, the above-described conventional control system using rhythm input needs to store and operate a plurality of complicated key input patterns. If the key input pattern is set easily, a third party other than the authorized user happens to randomly input a key, or a book or document etc. is moved by a person's movement or surrounding vibration, and hits the key. In other words, if a signal that is not intended by the user is input as a set key input pattern, there has been a problem that the operation of the apparatus is controlled. Also, when operating the door outer handle in the unlatching direction, if a large action is used to make the contact bonding type switch respond, the operation may be seen by a third party or an operation sound may be heard. Thus, there is a problem that the operation is controlled. Furthermore, the rhythm input means using the contact bonding type, the capacitance type, and the like have problems such as contact failure due to secular change and malfunction due to rain.

The present invention has been made in view of the above situation, and has high operability and high-convenient rhythm input that can operate various devices only by a simple operation by a user without the above-described malfunction and high security. An object is to provide a control system.

  In order to solve the above-described conventional problems, a control system according to the present invention includes a rhythm input unit that allows a user to input a rhythm in the control system that performs operation control of a device based on an instruction by a rhythm from the user, and the input And a control means for recognizing the rhythm pattern and performing a device operation corresponding to the rhythm pattern, and the operation part for inputting the rhythm is provided outside the structure containing the device to be operated. .

  As a result, when the user operates the rhythm input means and inputs a cipher signal that is a predetermined rhythm pattern, the control circuit analyzes the cipher signal and refers to the stored rhythm pattern to recognize the control contents and is connected. Since the operation of the device corresponding to the rhythm pattern among the devices is controlled, a control system capable of controlling the operations of the various devices with as few input devices as possible is provided. In addition, it is possible to operate equipment in the vehicle or indoors from the outside of the vehicle body or building / house, which is a structural body, that is, outside or outside the vehicle. In addition, a control system that is not affected by noise is provided. Furthermore, since the user can operate various devices only by inputting a predetermined rhythm pattern, a troublesome operation such as switching to the voice recognition mode as in the case of the voice recognition system becomes unnecessary, and the control system has good operability. Will be provided. Furthermore, it can be expected that the user can learn the operation in a short period of time.

  The control system of the present invention is a control system that performs device operation control based on a rhythm instruction from a user, and recognizes the rhythm pattern that the user inputs a rhythm and recognizes the input rhythm pattern. Control means for performing the device operation, and the operation part for inputting the rhythm is provided outside the structure containing the device to be operated, so that the user operates the rhythm vibration detection means to perform predetermined vibration. When an encryption signal that is a rhythm pattern is input, the operation of the corresponding device can be controlled, so that operability and convenience are improved. And by providing input means that can operate internal equipment from outside the car body or building / house, which is a structure, that is, outside or outside the car, for example, the user notices that he / she forgot to close the window after getting off the car and locking it In this case, it becomes possible to close the window by operating the rhythm input means, and the convenience is extremely improved without bothering to unlock and ride and operate.

  According to a first aspect of the present invention, there is provided a control system for controlling the operation of a device based on an instruction by a rhythm from a user, a rhythm input means for the user to input a rhythm, and the input rhythm pattern to recognize the corresponding rhythm pattern. A control means for operating the device, and the operation part for inputting the rhythm is provided outside the structure containing the device to be operated, so that the user operates the rhythm input means according to a predetermined rhythm pattern. When a certain encryption signal is input, the control means analyzes the encryption signal, refers to the stored rhythm pattern, recognizes the control content, and controls the operation of the device corresponding to the rhythm pattern among the connected devices. In this way, since the user simply performs the operation, the operability and convenience are improved. And by providing input means that can operate internal equipment from outside the car body or building / house, which is a structure, that is, outside or outside the car, for example, the user notices that he / she forgot to close the window after getting off the car and locking it In this case, it becomes possible to close the window by operating the rhythm input means, and the convenience is extremely improved without bothering to unlock and ride and operate.

In the second invention, in particular, the rhythm input means of the first invention is a vibration detection means for detecting rhythm vibration from the user, so that rhythm input can be performed with a simple operation such as tapping, and practicality is improved. . And since a rhythm input means becomes what outputs a rhythm input signal, such as a user's impact vibration and impact sound, into an electrical signal, a rhythm input part can be provided with a simple structure at low cost. Therefore, it is possible to provide a rhythm input unit that improves the user's operation convenience while reducing the installation area and effectively utilizing the space.

  In the third invention, since the vibration detecting means of the second invention is a coaxial cable-shaped piezoelectric sensor, and the piezoelectric sensor is used for the vibration detecting means, minute vibrations caused by taps can be detected with high sensitivity. Is possible. In addition, since a central electrode, a piezoelectric body, an outer electrode, and a coating layer are provided and are formed by sequentially forming them coaxially, a coaxial cable-shaped piezoelectric sensor in which the outer electrode is formed of a braided metal wire is used. The flexibility of the piezoelectric sensor is improved, and the degree of freedom of sensor layout is increased.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the invention, the apparatus further comprises: a user authentication unit; and an authentication permission unit that permits device operation when the user authentication unit authenticates a user. When the user operates the vibration detecting means after authenticating the user by the authenticating means, even if a rhythm pattern is input to the control means while the device is in the unauthenticated state, the device operation is not performed. Since the control means controls the operation of the device corresponding to the rhythm pattern among the connected devices, a non-user does not operate the device arbitrarily against the user's intention, so even if there are people around It can be operated without worrying about crime prevention being operated by others.

  In the fifth aspect of the invention, in particular, in the user authentication means of the fourth aspect of the invention, user authentication is always performed, so that even when the vehicle is stopped, it is on standby to always perform user authentication, so that the user can be authenticated. The user authentication is completed just by approaching the area, and the user authentication is already completed when you want to operate the rhythm input means, so you can start the rhythm input operation immediately, saving user trouble and convenience Will improve.

  In the sixth aspect of the invention, the rhythm input means of the fourth or fifth aspect of the invention is provided in the portable device possessed by the user, so that the rhythm input means can be operated remotely, so that convenience is particularly improved. .

  According to a seventh aspect of the invention, in particular, in any one of the fourth to sixth aspects of the invention, the control circuit is provided by notifying the user that the rhythm input has been received, so that the user can operate the rhythm input means. When the correct encryption signal is input and the stored rhythm pattern is referred to and the control content is recognized, the user may check the correctness of the operation by answering back by a notification means such as lighting or blinking of the blinker lamp. In particular, in the case where the rhythm input means is operated remotely, the convenience is greatly improved.

  According to an eighth aspect of the present invention, there is provided a vehicle equipped with the control system according to any one of the fourth to seventh aspects, wherein the structure is a vehicle body and the rhythm input means is provided at one location of the vehicle body. The manufacturing cost is lower than installing the input means at multiple locations, and it can be prevented from being operated by a third party by another input means that is the blind spot of the user, and even if there are people around, it can be operated by others It can be operated without worrying about crime prevention.

  According to a ninth aspect of the invention, in particular, the rhythm input means of the eighth invention is arranged on a door handle of an automobile, and on the basis of an output signal of the rhythm input means, opening / closing of the automobile window, lighting of a room light, side mirror Control of the operation of on-vehicle equipment such as storage of lights, hazard lamp lighting, air conditioner operation, engine operation, etc., for example, by inputting a rhythm by tapping the door handle from outside the car, Can be controlled, and convenience is improved.

  In a tenth aspect of the invention, particularly in the eighth or ninth aspect of the invention, the automobile has a smart entry system, and the authentication means also uses the authentication operation of the smart entry system so that the authentication means can authenticate the smart entry system. Since the operation is shared, the system can be rationalized and the convenience is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a block diagram of a control system using a rhythm input according to the first embodiment of the present invention. A control system 101 using rhythm input is a device control that controls the operation of vibration detection means 102 that is a rhythm input means for a user to input a predetermined rhythm and at least one or more connected devices 103a to 103f. , A rhythm pattern storage unit 105 that stores a rhythm dictionary in which the output of the vibration detection unit 102 and the control content of the device control unit 104 are associated with each other by a rhythm pattern, and the output of the vibration detection unit 102 is analyzed. A processing unit 106 for recognizing the input rhythm, recognizing the corresponding control content with reference to the rhythm pattern storage unit 105, and controlling the connected devices 103a, 103b,. 104, the rhythm pattern storage unit 105, and the processing unit 106 constitute a control means, and from the processing unit 106 And operation prohibition means 107 prohibits the operation of the device 103 by the device control unit 104 regardless of the force content, a user authentication unit 108 for authenticating the user to enter, and a notification unit 109.

  The user authentication means 108 includes a wireless slave device 108a that can be carried by the user, and a master device 108b that can wirelessly communicate with the slave device 108a and performs a predetermined authentication operation. Then, an authentication permission unit 110 that permits the operation of the device 103 by the control unit when the user is authenticated by the authentication operation of the user authentication unit 108 is provided. Further, the control system 101 is provided with an engine detection unit 111 connected to the operation prohibiting unit 107 as a control system using a rhythm input for an automobile.

  FIG. 2 is an external view of an automobile door provided with a door handle device 100 which is a tap input means provided with a vibration detection means 102. In the figure, a handle bracket 2 is attached to the door 1. The handle bracket 2 has a door handle 3. 3 is an external view of the handle bracket 2 as viewed from the outside of the vehicle, FIG. 4 is an external view of the handle bracket 2 as viewed from the inside of the vehicle, and FIG. 5 is an enlarged perspective view showing the main part of the handle bracket 2. In the drawing, a flexible cable-like piezoelectric sensor 4 is mounted on the handle bracket 2 together with the detecting means 5. A power source, a detection signal output cable 6 and a connector 7 are connected to the detection means 5 and incorporate a signal processing circuit. The plate-like support means 8 is pivotally supported and extended at the lower left end portion toward the drawing of the detection means 5, and the piezoelectric sensor 4 is supported and fixed to the tip portion of the support means 8 (in the drawing). Support part 8b). The piezoelectric sensor 4 is provided with a multi-layer overlapping portion 9 serving as a simultaneous deformation portion composed of a plurality of bent portions 4a formed by turning the piezoelectric sensor 4 at least once or more (in FIG. 3 and FIG. 4, two and a half turns). I have.

Here, the piezoelectric sensor 4 is turned by the bent portion 4a, and is bundled and supported by the support means 8 and the support portion 8b, and a guide portion 5d extends from the upper part of the detection means 5, and is a position restricting means. The piezoelectric sensor 4 is supported by the guide portion 5d and the support portion 5e. In the support portions 8b and 5e, the laminated state of the support means 8, the guide portion 5d, and the rotated piezoelectric sensor 4 is held and fixed using a binding band or the like. Fixing is not limited to this method, and it may be configured to be hooked on a hook-shaped fixture, etc., and may be fixed in a loose-fitting state, but it will fix the support part and the piezoelectric sensor with an adhesive. Preferably not. If this is a configuration in which the shape of the piezoelectric sensor 4 itself is fixed with an adhesive or the like, the deformation of the piezoelectric body is hindered, and the deformation of the piezoelectric sensor 4 is suppressed and the output is reduced.

  The contact surface of the support portion 8b and the support portion 5e with the piezoelectric sensor 4 may be in contact with a part of the bent portion 4a, but is wider than the bent portion 4a of the stacked piezoelectric sensor 4 facing the support portion 8b. It is preferable to use an area because the bent portion 4a can be surely deformed simultaneously. That is, the configuration is not limited to this, since it is sufficient that the plurality of bent portions of the piezoelectric sensor 4 are in contact with the support portion 8b and the support portion 5e so as to cause deformation at the same time.

  As shown in FIGS. 4 and 5, the movable portion 8c of the support means 8 is in contact with the arm portion 10 that operates in conjunction with the door handle 3 at the upper end 10a. A portion indicated by five arrows A in FIG. 5 is a simultaneous deformation portion of a bent portion formed by winding the piezoelectric sensor 4. The support means 8 is rotatably supported with a shaft 11 fixed to the detection means 5 and the guide portion 5d as a rotation axis, and is supported by the spring 12 as an elastic body connection means when the door handle 3 is not used. A predetermined pressure 8 is biased to contact the upper end 10a of the arm portion. A predetermined spring pressure is applied to the arm portion 10 by a handle spring 13 so that the door handle 3 is always pressed in the closing direction. The detection means 5 is attached to the handle bracket 2 with screws 5c through attachment fittings 5a and 5b.

  FIG. 6 is a cross-sectional view of the piezoelectric sensor 4. The piezoelectric sensor 4 is formed by coaxially forming a center electrode 4b, a piezoelectric body 4c, an outer electrode 4d, and a coating layer 4e, and has a configuration excellent in flexibility as a whole. The center electrode 4b may be an ordinary metal single wire, but here, an electrode in which a metal coil is wound around an insulating polymer fiber is used. The insulating polymer fiber and the metal coil are each preferably a polyester fiber commercially used in electric blankets and a copper alloy containing 5 wt% silver.

  The piezoelectric body 4c is obtained by kneading a polyethylene resin and a piezoelectric ceramic (here, lead zirconate titanate) powder, and is continuously extruded together with the center electrode 4b to form a flexible piezoelectric body 4c. . As the piezoelectric ceramic, it is preferable to use a lead-free material, for example, a bismuth sodium titanate or alkali niobate piezoelectric ceramic material in consideration of the environment.

  After extruding the piezoelectric body 4c around the center electrode 4b, the piezoelectric body 4c is polarized by applying a DC voltage of several kV between the center electrode 4b and the pseudo electrode brought into contact with the surface of the piezoelectric body 4c. . Thereby, the piezoelectric body 4c has a piezoelectric effect.

  The outer electrode 4d is configured using a braided metal wire. In the formation of the multi-layer superposed portion 9, if the number of turns of the piezoelectric sensor 4 is increased, the rigidity of the entire deformed portion provided with the bent portion 4a increases, and it becomes difficult to deform. Therefore, in order to avoid this, the outer electrode of the piezoelectric sensor 4 As 4d, a braided wire is used.

  At this time, for example, an ultrafine wire having a diameter of 50 μm or less of a tin-plated copper wire is used as a strand constituting the braided wire, and the braided wire around the piezoelectric body 4c has a pitch of 4 to 10 mm. Since the flexibility of the piezoelectric sensor 4 is increased and the flexibility is improved as compared with the configuration in which the band-like electrode to which the film is adhered is wound, the piezoelectric sensor 4 is bent even in the configuration in which the piezoelectric sensor 4 is swung by the bending portion 4a as described above. It is possible to realize a configuration that can be easily deformed while suppressing an increase in rigidity of the portion 4a.

If the braided wire as described above is used, the processing speed for forming the outer electrode 4d can be equal to or higher than that of the configuration in which the strip electrode is wound, and the productivity can be improved. Moreover, the tolerance to strong electric field noise equivalent to the configuration in which the strip electrode is wound by the braided wire can be ensured.

  Further, in the case where the piezoelectric sensor 4 has a configuration in which a belt-like electrode is wound as the outer electrode 4d, the belt-like electrodes are partially overlapped and wound. Therefore, when the piezoelectric sensor 4 is bent and disposed, a bent portion is provided. Then, the strip electrode is partially loosened in the coating layer 4e. Accordingly, when the bent portion of the piezoelectric sensor 4 is deformed, the strip electrode is partially loosened, and the strip electrode and the piezoelectric body 4c are rubbed to generate triboelectricity, which becomes noise and causes false detection. Sometimes. On the other hand, when the braided wire composed of the fine wires as described above is used for the outer electrode 4d, the close contact between the piezoelectric body 4c and the braided wire is good, so that the braided wire does not partially loosen even at the bent portion. Even if the bent part is deformed, the generation of triboelectricity that becomes noise is suppressed, and erroneous detection can be prevented.

  The detection means 5 is at least one band-pass filter unit composed of an operational amplifier and peripheral components, and if necessary, a band elimination filter composed of an operational amplifier and peripheral components to remove signal components including the natural vibration frequency of the door 1 Or the low-pass filter unit serves as a determination unit that determines whether the detection unit 5 is a rhythm input by the user or noise such as an impact. And the determination part for detecting tap operation | movement as a user's rhythm input to the door handle 3 based on the output signal of the said filter part, and door handle operation at the time of a user opening a door is provided. As the determination unit, at least two comparators are used. Each of the filter unit and the determination unit uses a low current consumption type element of 1 mA or less.

  As a characteristic of the band-pass filter unit, for example, a frequency range of 3 Hz to 8 Hz is obtained as a characteristic frequency band by analyzing the frequency of the output signal from the piezoelectric sensor 4 when the door handle 3 is experimentally operated. Set the characteristics to pass.

  The band elimination filter unit or the low-pass filter unit can be set, for example, as a characteristic frequency band by analyzing the frequency of the output signal from the piezoelectric sensor 4 when the door 1 is intentionally hit. The characteristic is set so as to remove a frequency region of 10 Hz or more. In addition, when the intensity | strength of a natural vibration is small and the influence on the output signal of the piezoelectric sensor 4 is small, it is not necessary to provide a band elimination filter part or a low-pass filter part.

  Furthermore, since it is assumed that the natural vibration characteristics of the door differ depending on the vehicle type, door size, weight, etc., based on the above experimental analysis, the bandpass filter unit, the band elimination filter unit, the lowpass filter unit It is preferable to optimize the setting.

  In order to remove extraneous electrical noise, the detection means 5 is preferably covered with a shield member to be electrically shielded. Further, a countermeasure against strong electric field may be taken by adding a feedthrough capacitor, an EMI filter or the like to the input / output part of the detection means 5.

  The devices 103a to 103f are power window, room light, side mirror, hazard lamp, air conditioner, and engine ignition, respectively. Further, the door handle device 100 includes a smart entry system, and the user authentication means 108 also serves as an authentication operation of the smart entry system. That is, the slave unit 108a is a smart key carried by the user, and the master unit 108b is built in the vehicle body together with the antenna. The base unit 108b is always energized. When the slave unit 108a enters the detection target area of the antenna, the base unit 108b communicates with the slave unit 108a to perform a predetermined authentication operation.

  Next, the operation will be described. The master unit 108b and the slave unit 108a are always energized at intervals of at least 1 minute, preferably at intervals of 5 seconds, to confirm communication with each other, and the user carrying the slave unit 108a is attached to the locked vehicle body. When approaching and entering an area to be detected by the antenna of the master unit 108b, the master unit 108b and the slave unit 108a communicate with each other and perform an authentication operation of a predetermined method such as a method of transmitting / receiving the unique code of the slave unit. . Then, when the authentication is completed, the operation of the device 103 by the control means is permitted by the authentication permission means 110. For example, the hazard lamp is turned on a predetermined number of times, the authentication is normally completed, and the input of the rhythm input is waiting. Inform the user. Note that even if a person who does not carry the child device 108a approaches the locked vehicle body, the parent device 108b does not establish communication, so the authentication operation is not performed and the authentication permission means 110 is in an unauthenticated / unauthorized state. , Rhythm input is not in input standby.

  After the authentication is completed, the user performs a rhythm input by lightly tapping the door handle 3 as an operation part. Here, for example, when the power window 103a is opened and closed, it is tapped twice at a predetermined interval with “●●” (mad). (● represents a single tap.) Similarly, “●●●” (light) when the room light 103b is turned on and off, and “●●●●●” when the side mirror 103c is stored and unfolded. (Side mirror), hazard lamp 103d blinking and extinguished, “●●-●” (hazard) (“−” represents a one-beat pause), and air conditioner 103e on / off Tap “●●●●” (engine) to turn “●-●” (cooler) or on / off of the engine ignition 103f.

  When the door handle 3 is vibrated slightly by these tap operations, the arm portion 10 is also vibrated slightly in conjunction with the door handle 3. This vibration propagates to the piezoelectric sensor 4 via the support means 8 in contact with the arm portion 10, and the piezoelectric sensor 4 generates an output signal corresponding to the magnitude of the vibration acceleration due to the piezoelectric effect.

  FIG. 7 shows these six rhythm patterns as an example. The rhythm pattern corresponds to the control content name of the operation by the control means, and a rhythm pattern equivalent to the rhythm pattern when the control content name is uttered as speech is used. That is, in FIG. 7, as a rhythm pattern rule, one syllable is expressed as “●” and one long sound is expressed as “−”. A long sound is a word or a double vowel represented by the letters “-” or “tsu”, and a single syllable is a consonant or vowel such as “ma” or “e”, excluding the long sound. When the user taps the door handle 3, which is a simple operation, using a rhythm pattern that typifies the pronunciation pattern of the name representing the control content in this way, an output signal corresponding to the tap is generated from the piezoelectric sensor 4.

  FIG. 8 is a characteristic diagram showing the signal V amplified and filtered in the detection means 5 and the determination output J1 of the determination unit at this time. In the figure, the vertical axis indicates V and J1 in order from the top, and the horizontal axis indicates time t. When there is vibration due to the tap operation of the door handle 3 and the piezoelectric sensor 4 is deformed, the piezoelectric sensor 4 outputs a signal corresponding to the acceleration of the vibration applied to the piezoelectric sensor 4 due to the piezoelectric effect. At this time, a signal having a frequency of about 3 to 8 Hz appears in the output signal, and the signal is amplified and filtered in the detection means 5 to obtain a signal as shown in V of FIG. If the amplitude V-V0 from V0 of V0 is equal to or greater than D0, the determination unit outputs a pulse signal of Lo → Hi → Lo as a determination output J1 because there is one beat of tap. For example, when “●●” (mad) is tapped, a 2-pulse signal is output as the determination output J1, as shown in FIG.

In the rhythm pattern storage unit 105, pulse train information of “0” and “1” corresponding to the above six rhythm patterns is stored as a rhythm dictionary in a data table together with the control contents of the related apparatus. For example, “11” is a control for opening and closing the power window 103a, “111” is a control for turning on and off the room light 103b, “11111” is a control for storing and unfolding the side mirror 103c, and “1101” is a hazard lamp 103d. “101” is the on / off control of the air conditioner 103e, and “1111” is the engine ignition 103f on / off control.

  As shown in FIG. 8, when there is an output of two pulses as the determination output J1, when the processing unit 106 recognizes that it is pulse train information corresponding to “●●” (mad), the rhythm pattern storage unit 105 With reference to the rhythm dictionary, a control command for opening and closing the power window 103a is transmitted to the apparatus control unit 104. As a pulse train information recognition method, for example, as pulse train information, there is a second pulse within 300 milliseconds from the first pulse, and there is no pulse within 1 second from the second pulse. If “11” is confirmed, there is no pulse within 300 milliseconds from the second pulse, but there is a third pulse within one second and a pulse within one second from the third pulse. If there is no signal, the pulse train information is recognized according to a determination rule such as “1101”.

  As described above, when a control command for opening / closing the power window 103a is transmitted from the processing unit 106 to the device control unit 104, the device control unit 104 until the power window 103a of the tapped door is fully opened. Control to perform the opening operation. In this state, if there is a tap input corresponding to “●●” (mad) again, the closing operation is performed until the power window 103a is fully closed. For the same input thereafter, full open and full close are repeated in order.

  Similarly, when the pulse train information of “111” is recognized, the room light 103b is controlled to be turned on, and for the subsequent recognition of the same pulse train information, the room light 103b is controlled to be turned off. Further, when the pulse train information “11111” is recognized, the side mirror 103c is controlled to be folded and housed, and for the subsequent recognition of the same pulse train information, the side mirror 103c is controlled to be deployed. When the pulse train information “1101” is recognized, the hazard lamp 103d is controlled to blink, and for the subsequent recognition of the same pulse train information, the hazard lamp 103d is controlled to be turned off. Further, when the pulse train information of “101” is recognized, the air conditioner 103e is controlled to be turned on, and for the subsequent recognition of the same pulse train information, the air conditioner 103e is controlled to be turned off.

  Next, a case where the pulse train information “1111” is recognized and the ignition 103f of the engine is controlled will be described. In this case, since the engine is controlled, the following procedure is used to prevent malfunction and confirm the user's intention. First, when the pulse train information “1111” is recognized by the processing unit 106, a control command is transmitted from the processing unit 106 to the apparatus control unit 104 so that the hazard lamp 103 d as the notification unit 109 blinks a predetermined number of times. Then, after the hazard lamp 103d blinks a predetermined number of times, if there is a predetermined tap input within a predetermined time and is recognized by the processing unit 106, the reception of the pulse train information of “1111” is finally completed. Then, a control command is transmitted from the processing unit 106 to the apparatus control unit 104 to turn on the ignition 103f of the engine.

  As the predetermined tap input, for example, a single tap such as “●” may be set, or a tap pattern not set as described above such as “●-●●”. May be set. Further, when there is no predetermined tap input within a predetermined time, the reception of the pulse train information “1111” is not permitted, and the control command is not transmitted to turn on the ignition 103f. When the ignition 103f is turned on and the pulse train information “1111” is recognized again during engine start (idling), a control command is issued to blink the hazard lamp 103d a predetermined number of times, and the hazard lamp 103d. Immediately after flashing a predetermined number of times, the ignition 103f is turned off and the engine is stopped. The reason why the predetermined tap input as described above is not confirmed after the hazard lamp 103d blinks is because the engine stop is a safe operation, but as necessary, the predetermined tap input may be performed. There may be a procedure for checking whether or not there is a tap input.

  In the above configuration, the hazard lamp 103d is used as the notification unit 109. However, as another configuration, a buzzer may be provided on the door and the buzzer may be used as the notification unit 109.

  Next, the smart entry function of the door handle device 100 will be described. When the user carrying the slave unit 108a approaches the locked vehicle body and enters the area to be detected by the antenna of the master unit 108b, the master unit 108b and the slave unit 108a communicate with each other and perform a predetermined authentication operation. . When the authentication is completed, for example, the hazard lamp is turned on a predetermined number of times to notify the user that the authentication is normally completed and the door handle operation detection is on standby. Note that even if a person who does not carry the child device 108a approaches the locked vehicle body, the parent device 108b does not establish communication, so that the authentication operation is not performed and the door handle operation detection is not waited.

  When the user pulls the door handle 3 to open the door after the authentication is completed, the door handle 3 is displaced to the outside of the vehicle and the arm portion 10 is displaced in conjunction with the door handle 3. FIG. 9 is an external view of the handle bracket 2 at this time as viewed from the inside of the vehicle. FIG. 10A is a schematic diagram showing the displacement of the door handle 3, the piezoelectric sensor 4, the support means 8, and the arm unit 10 before the door handle is operated. FIG. 10B is a diagram when the door handle is operated. FIG. 4 is a schematic view showing how the door handle 3, the piezoelectric sensor 4, the support means 8, and the arm portion 10 are displaced. 10A corresponds to FIG. 4 viewed from the S direction, and FIG. 10B corresponds to FIG. 9 viewed from the S direction. As shown in the figure, when the door handle 3 is displaced to the outside of the vehicle, the upper end 10a of the arm portion 10 is lowered, and the support means 8 biased to the upper end 10a by a predetermined pressure also rotates while the tip end portion rotates about the shaft 11. Shows maximum displacement and moves downward. Therefore, the piezoelectric sensor 4 is also deformed and deformed in the direction in which the radius of curvature of the bent portion 4a is increased.

  FIG. 11 is a characteristic diagram showing the signal V amplified and filtered in the detection means 5 and the determination output J2 of the determination unit at this time. In the figure, the vertical axis indicates V and J2 in order from the top, and the horizontal axis indicates time t. When there is a displacement due to the operation of the door handle 3 and the piezoelectric sensor 4 is deformed, the piezoelectric sensor 4 outputs a signal corresponding to the deformation acceleration of the piezoelectric sensor 4 due to the piezoelectric effect. At this time, a signal having a frequency of about 3 to 8 Hz appears in the output signal, and the signal is amplified and filtered in the detecting means 5 to obtain a signal as shown in V of FIG.

  If the absolute value | V−V0 | of the amplitude of V from V0 is equal to or greater than D1, the determination unit determines that at least one of an object contact with the door handle 3, an opening operation with the door handle 3, and a closing operation with the door handle 3 has occurred. At time t2, a pulse signal Lo → Hi → Lo is output as a determination output J2. Here, D1 is set to a value larger than the threshold D0 for rhythm input determination. This is because when comparing the acceleration of vibration propagated to the piezoelectric sensor 4 by a light tap on the door handle during rhythm input and the acceleration of displacement of the piezoelectric sensor 4 by door handle operation, the latter is better than the former. Since the acceleration is large and the output signal of the piezoelectric sensor 4 is larger in the latter than in the former, the rhythm input and the door handle operation are distinguished by providing D0 and D1. As a reference, the waveform of the output V and D0 when tapping the door handle are shown in the R part of FIG.

Even if the door handle 3 is pushed from the outside of the vehicle, the piezoelectric sensor 4 is deformed via the arm portion 10 and the support means 8. In this case, since the bent portion 4a of the piezoelectric sensor 4 is deformed in a direction in which the radius of curvature decreases, the output characteristics of the piezoelectric sensor 4 have a polarity opposite to that when the bent portion 4a is deformed in a direction in which the radius of curvature of the bent portion 4a increases. An output signal is output from the piezoelectric sensor 4. As a result, a signal on the minus side of the reference potential V0 of FIG. When the absolute value | V−V0 | of the amplitude of V from V0 is equal to or greater than D1, the determination unit performs at least one of an object contact with the door handle 3, an opening operation with the door handle 3, and a closing operation with the door handle 3. It is determined that it has occurred, and a Hi signal is output during a period in which | V−V0 | Thus, even when the door handle 3 is pushed from the outside of the vehicle, it can be detected, which is convenient. In particular, when holding an object in both hands, or when a weak child or elderly person uses it, it is easier to push the door handle 3 from the outside of the vehicle than to pull the door handle 3 to the outside. improves.

  When door handle operation is detected as described above, for example, an actuator such as a lock motor of a key cylinder or a solenoid is controlled to unlock the door so that the door is unlocked. Can continue to lift the door handle to open the door.

  When the user closes the door and locks the door, the output signal of the piezoelectric sensor 4 has a polarity different from that of the reference potential V0 when the door handle 3 is pulled and pushed from the outside as described above. It is good also as a structure which locks, if it detects using this and pushing the door handle 3 from the vehicle outer side.

  Next, a rhythm input control prohibition setting function by the user will be described. When the user carrying the child device 108a gets off the vehicle, locks it, and leaves the vehicle body, if the rhythm input control is unnecessary for the time being, tap “●-●●●●” (Dosakinshi). By this tap operation, the vibration of the door handle 3 is propagated to the piezoelectric sensor 4, and the piezoelectric sensor 4 generates an output signal corresponding to the vibration due to the piezoelectric effect, so that pulse train information “101111” is output. At this time, since the slave unit 108a is in an area to be detected by the antenna of the master unit 108b, a predetermined authentication operation is completed between the master unit 108b and the slave unit 108a, and user notification by a hazard lamp or the like is completed. Therefore, the authentication permission means 110 is in a permitted state. Therefore, when the pulse train information “101111” is recognized by the processing unit 106, the operation prohibiting unit 107 is enabled, and the operation of the device 103 by the device control unit 104 is prohibited, and the processing unit 106 to the device control unit thereafter. Regardless of the content of the control command for 104, rhythm input control of all connected devices 103 is prohibited.

  Therefore, after that, the user carrying the child device 108a unintentionally approaches the locked vehicle body and unintentionally enters the detection target area of the antenna of the parent device 108b, and the authentication permission means 110 is in the permitted state. Even if it is, the control means is connected even if a signal that is not intended by the user, such as a child's prank, vibration noise, or electromagnetic noise, is input to the control means and coincides with the control content of the stored rhythm pattern. The device 103 is never controlled to operate.

  As a method for setting the operation prohibiting means 107 to the valid state, tap input such as “●-●●●●” may be performed as described above, or the vicinity of the door handle 3 as another configuration, Alternatively, a setting switch may be provided on the slave unit 108a.

  Furthermore, the return from the prohibition state after the prohibition setting of the rhythm input control by the user will be described. A user carrying the handset 108a approaches the locked vehicle body in order to drive the car. At this time, since the smart entry function of the door handle device 100 is not prohibited, when entering the area to be detected by the antenna of the main unit 108b, a predetermined authentication operation is performed, and the user operates the door handle 3. The door is unlocked and can be boarded. When the user starts the engine, the engine detection unit 111 detects the operation of the engine and outputs engine operation information to the operation prohibition unit 107, so that the operation prohibition unit 107 returns from the valid state to the invalid state. That is, from the viewpoint of the user, the operation prohibiting means 107 automatically returns from the valid state to the invalid state by starting the engine after setting the prohibition of rhythm input control. Therefore, the next time the engine is stopped and the vehicle gets off, the device operation control by rhythm input becomes possible again.

  As described above, for example, when the user notices that the user has forgotten to close the window after getting off the vehicle after locking the vehicle, it is possible to close the window by operating the vibration detecting means, and bother to unlock and ride to operate. Therefore, since the user simply performs the operation, the operability and convenience are improved. Therefore, by providing input means that can operate the devices 103a, 103b,... 103f outside the vehicle body, which is the structure, that is, from the outside of the vehicle, for example, the user forgets to close the window after getting off the vehicle and locking it. When noticed, it becomes possible to close the window by operating the rhythm input means, and the convenience is greatly improved without bothering to unlock and get on and operate. In addition, when this control system is used in a residence or office having a building / house as a structure, for example, an indoor device can be operated from the outside of the door of the residence.

  Since there is an operation prohibition means, when the operation of the vibration detection means is unnecessary, the user sets the operation prohibition means to an effective state, so that a signal unintended by the user such as a child's mischief, vibration noise, electromagnetic wave noise, etc. Even if it coincides with the control content of the rhythm pattern that is input to the control means and happens to be stored, the control means never controls the operation of the connected apparatus, and can prevent malfunction of the apparatus against the user's intention.

  In addition, a rhythm pattern obtained by typifying the control content and the pronunciation pattern of the name representing the control content is registered in the rhythm dictionary, and the operation of various devices is controlled simply by the user simply operating the rhythm input unit using the rhythm pattern. Therefore, operations of various apparatuses can be controlled by a small number of input devices (typically, one switch or sensor). And it is not affected by noise like voice input, and the user can operate various devices just by inputting the rhythm pattern according to the rhythm of natural language, so a control system with good operability is provided Therefore, it can be expected that the user can learn the operation in a short period of time. Furthermore, since the input rhythm pattern is recognized by simplifying the temporal change in the amplitude level of the rhythm input signal, the possibility that the recognized input rhythm pattern matches the rhythm pattern intended by the user is increased. As a result, the operation of various devices can be controlled as intended by the user, and a control system with high operability and convenience that prevents malfunction of the device against the user's intention can be provided.

  In addition, since user authentication is required at the time of rhythm input, operation of rhythm input by people other than the user is prohibited, so that a non-user does not operate the device without permission against the user's intention, Even if there are people around you, it can be operated without worrying about crime prevention such as being operated by others.

  In addition, even when the vehicle is stopped, it is on standby to perform user authentication at intervals of 5 seconds or less, so user authentication is completed simply by approaching the area where the user can authenticate and the rhythm input means is to be operated. Sometimes user authentication has already been completed, so that rhythm input operation can be started immediately, and the convenience of the user is improved by saving the user's trouble.

  Further, the control system using rhythm input is provided with vibration detecting means for detecting a tap as a predetermined rhythm, and the rhythm input can be performed by a simple operation such as tapping, so that practicality is improved. And since a vibration detection means becomes what outputs a rhythm input signal, such as a user's striking vibration and a striking sound, into an electrical signal, a rhythm input part can be provided with a simple structure at low cost. Therefore, it is possible to provide a rhythm input unit that improves the user's operation convenience while reducing the installation area and effectively utilizing the space.

In addition, since the vibration detecting means is a coaxial cable-shaped piezoelectric sensor, minute vibrations caused by the tap can be detected with high sensitivity. In addition, since a central electrode, a piezoelectric body, an outer electrode, and a coating layer are provided and are formed by sequentially forming them coaxially, a coaxial cable-shaped piezoelectric sensor in which the outer electrode is formed of a braided metal wire is used. The flexibility of the piezoelectric sensor is improved, and the degree of freedom of sensor layout is increased.

  In addition, since the automobile is configured such that the operation prohibiting means automatically returns from the valid state to the invalid state when the engine is started, the user does not need the rhythm input, and the user can control the rhythm input control in order to prevent the device from malfunctioning due to mischief or noise. Even if the prohibition operation is performed, when the engine is started after that, the vehicle leaves the place and there is no fear of malfunction of the device and it is desired to use the rhythm input again, the operation prohibition means automatically returns from the valid state to the invalid state by starting the engine. Therefore, automatic return from prohibition of rhythm input control is made, and the operation of the connected device can be controlled by inputting the encryption signal for device control by the operation of the vibration detecting means. Will improve.

  Further, the vibration detection means includes a detection means 5 that is a determination means that extracts a signal component of at least one frequency band from the output signal of the piezoelectric sensor and determines a tap. For example, disturbance vibration other than the tap, etc. Even if the noise component due to is included in the output signal of the piezoelectric sensor, the tap can be determined by extracting the signal component of at least one frequency band peculiar to the tap. Therefore, even if the detection accuracy is improved and a signal unintended by the user is output from the vibration detection means to the control circuit and happens to coincide with the control content of the rhythm pattern storage unit, the control circuit never controls the connected device. Therefore, it is possible to prevent malfunction of the device against the user's intention.

  In addition, since a notification means for notifying the user that the rhythm input has been received is provided, and it can be seen that the rhythm signal input by the notification has been reliably received, the user can confirm whether the operation is correct or not. The sense of security is improved. Particularly in the case of a form in which the rhythm input means is operated remotely, the convenience is greatly improved.

  In addition, after the notification signal is generated from the notification means, if the user makes a predetermined input within a predetermined time, the reception of the rhythm input is completed, and if the input is not within the predetermined time, the rhythm input is completed. Since the acceptance is not permitted, the reliability of the input of the rhythm input is improved, and even if an incorrect input is made, it is only necessary to input again after a predetermined time, so that the usability is improved.

  Further, the user authentication means includes a wireless slave device that can be carried by the user, and a master device that is capable of wireless communication with the slave device and performs a predetermined authentication operation, and performs the authentication operation wirelessly. It can be convenient.

  In addition, since the rhythm input means is provided at one location of the vehicle body so as to be arranged at the driver's seat door handle of the automobile, the manufacturing cost is lower than installing at multiple locations, and the blind spot of the user is reduced. It can be prevented from being operated by a third party by another input means, and even if there is a person around, it can be operated without worrying about crime prevention that it is operated by another person.

  Further, the vibration detection means is disposed on the door handle of the automobile, and based on the output signal of the vibration detection means, the opening / closing of the automobile window, lighting of the room light, storage of the side mirror, lighting of the hazard lamp, lighting of the air conditioner Controls the operation of on-vehicle equipment such as operation, engine operation, etc. For example, tapping the door handle from outside the vehicle makes it possible to control the operation of the on-vehicle equipment by inputting the rhythm. improves.

  In addition, since the automobile has a smart entry system, the authentication operation of the smart entry system is also used by the user authentication means, and the user authentication means is also used by the authentication operation of the smart entry system, so that the system can be rationalized. , Improve convenience.

  Further, in this door handle device, the cable-like piezoelectric sensor 4 has flexibility and can be attached to a contact detection target such as the door handle 3. In addition, when detecting a minute displacement at the time of contact of a person or an object by detecting a displacement of the movable portion 8c, it is detected by simultaneous deformation of a plurality of locations of the piezoelectric sensor 4, so that bending occurs when the same displacement is received. If there are many locations, the amount of charge generated by the piezoelectric effect increases by the amount of the bent portion, and the output signal can be increased. Therefore, the sensitivity of the piezoelectric sensor 4 is improved and detection with higher sensitivity and higher output becomes possible. Therefore, the touch on the contact detection target is detected to detect the user's vibration rhythm input, and the control circuit controls the operation of the apparatus, so that the operability and convenience can be improved.

  FIG. 12 is a characteristic diagram showing the relationship between the number of bent portions and the output signal. In the figure, among the output signals shown at V in FIG. 11 appearing when the door handle is operated, the value at which the absolute value | V−V0 | of the amplitude of V from V0 becomes maximum is set to | V−V0 | max. When the output | V−V0 | max is obtained by changing the number of turns by changing the number of turns, the output value becomes clear as the number of bends increases. When the number of bends exceeds three, In the detection means 5 that performs predetermined amplification and filtering, the output value is saturated. This saturation phenomenon is due to the characteristics of the circuit. If the limitation of the circuit characteristics is eliminated, the output of the signal increases with the amount of deformation. Therefore, a sufficient signal output can be obtained by simply touching the contact detection target, and a touch on the contact detection target can be detected. When the sensitivity of the piezoelectric sensor 4 is improved, even in the detection circuit housed in the detection means 5, for example, the signal processing gain can be reduced, so that the influence of electrical noise can be reduced, an operational amplifier or the like The number of amplifiers can be reduced, and the unit can be downsized. Further, since it is not necessary to expose the electrode, it is not easily affected by disturbance, adhering dust, rain, snow, or the like. Furthermore, since the cable-like piezoelectric sensor 4 can be flexibly deformed, there are few restrictions on the installation place and the arrangement space is also reduced.

  Further, a guide part 5d and a support part 5e are fixed to the detection means 5 as position restricting means of the piezoelectric sensor 4, and a spring 12 as a connecting means is provided on the support means 8 and rotated to thereby move the movable part 8c. The position restricting means is connected with elasticity, and the bent portion of the multilayer superimposing portion 9 is deformed simultaneously with the displacement of the movable portion, so that the movable portion 8c is displaced when the contact target is touched. Since it is possible to urge the pressure by the elasticity of the spring 12 so that it can be easily performed, a stable operation is possible regardless of the elasticity of the piezoelectric sensor 4. It can be done with high sensitivity and high output, and it can improve reliability.

  In addition, the simultaneous deformation portion is formed by the multi-layer overlapping portion 9 composed of a plurality of bent portions 4a configured by turning the piezoelectric sensor 4 at least once or more, so that the configuration becomes compact, and there are few restrictions on the installation place, In addition, the arrangement space is reduced.

  In addition, since the outer electrode 4d of the cable-like piezoelectric sensor 4 is formed of a braided metal wire, the flexibility of the cable-like piezoelectric sensor 4 is improved, so that it is easy to bend to form the simultaneously deformed portion and Therefore, it is possible to prevent deterioration of flexibility and output abnormality caused by deformation of the outer electrode 4d due to the above, and to stably realize high-sensitivity and high-output detection and improve reliability.

  Further, when the door handle 3 is not used, a part of the support means 8 is urged by a predetermined pressure and is in contact with the upper end of the arm portion 10, so that when the door handle 3 is opened, the arm portion 10 is moved along with the displacement of the door handle 3. The support means 8 and the piezoelectric sensor 4 follow and displace at the upper end, and the detection means 5 outputs an open detection signal according to the deformation of the piezoelectric sensor 4. Then, after the predetermined displacement, the support means 8 is not displaced, and the piezoelectric sensor 4 also remains deformed. Therefore, the displacement is too large and the piezoelectric sensor 4 is not disconnected. Therefore, the reliability of the detecting means 5 is improved.

  Moreover, by adjusting the positional relationship among the arm unit 10, the support means 8, and the piezoelectric sensor 4, the detection area and the displacement amount can be adjusted, and detection is also possible for various door handle devices having different structures and dimensions. The means 5 can be optimized.

  In addition, the piezoelectric sensor 4, the support means 8, and the detection means 5 are integrally molded to form the detection means 5. Since the detection means 5 can be attached to the door 1, the assembly as a door handle device can be efficiently performed.

  In the present embodiment, the rhythm pattern of the rhythm input is six patterns, but it is also possible to store the rhythm pattern storage unit 105 so that the user can additionally register an arbitrary rhythm pattern and control an arbitrary device. is there. That is, for example, the processing unit 106 includes a rhythm registration unit capable of setting a rhythm pattern registration mode. Then, after selecting a registration mode in the rhythm registration unit, inputting a device to be controlled and control content from the rhythm registration unit, and performing a tap with an arbitrary rhythm from the vibration detection means 102, a rhythm pattern of the tap and the device The information corresponding to the control contents is stored in the rhythm pattern storage unit 105. As a result, when the vibration detection means 102 is tapped with a newly registered rhythm pattern, the corresponding device is controlled with the registered control content.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS.

  FIG. 13 is a block diagram of a control system using a rhythm input according to the second embodiment of the present invention, and FIG. 14A is an external view of the handle bracket 2 according to the second embodiment of the present invention as viewed from the vehicle interior side. FIG. 14 and FIG. 14B are schematic views of FIG. 14A viewed from the S direction. In the following description, the same components as those described above are denoted by the same reference numerals, and the description thereof is omitted. The difference between the present embodiment and the first embodiment is that in FIG. 13, the rhythm inhibition switch 112, which is an operation inhibition means for inhibiting the operation of the device 103 by rhythm input, and the valid state of the operation inhibition means are invalidated. The slave unit 108a is provided with a return switch 113 which is a return means for returning to the state and releasing the prohibition of operation. The control system 101 is also different in that the control system 101 includes travel detection means 114 connected to the processing unit 106 as a control system using rhythm input for automobiles.

  Further, as shown in FIG. 14, the piezoelectric sensor 4 swung to form the multi-layer superposed portion 9 is sandwiched between two support portions 19b from above and below the swiveling plane by a support means 19 made of a leaf spring. The difference is that 19 is fixed in a cantilever shape and the arm 20 extending from the door handle is displaced so that the movable portion 19c is displaced in the direction of bending the turning plane.

  A function in which the user performs the rhythm input control prohibition setting with the above configuration will be described. Before the user carrying the child device 108a gets off the vehicle, locks it, and leaves the vehicle body, if the rhythm input control is unnecessary for the time being, the user presses the rhythm inhibition switch 112 provided on the child device 108a. At this time, since the slave unit 108a is in an area to be detected by the antenna of the master unit 108b, a predetermined authentication operation is completed between the master unit 108b and the slave unit 108a, and user notification by a hazard lamp or the like is completed. Therefore, the authentication permission means 110 is in a permitted state. When the information that the rhythm prohibition switch 112 is pressed is recognized by the processing unit 106 via the master unit 108b, the operation prohibition is enabled and the operation of the device 103 by the device control unit 104 is prohibited. Thereafter, no control command is issued from the processing unit 106 to the device control unit 104, and rhythm input control of all the connected devices 103 is prohibited.

Therefore, after this, even if a signal unintended by the user, such as a child's mischief, vibration noise, or electromagnetic noise, is input to the control means and coincides with the control content of the stored rhythm pattern, the control means is connected. The device 103 is never controlled to operate.

  Furthermore, the return from the prohibition state after the prohibition setting of the rhythm input control by the user will be described. When the user carrying the child device 108a approaches the locked vehicle body and enters the detection target area of the antenna of the parent device 108b, a predetermined authentication operation is performed. When the user presses the return switch 113 that is a return means provided in the slave unit 108a, the output is recognized by the processing unit 106 via the master unit 108b, and the operation prohibition setting returns from the valid state to the invalid state. . Therefore, after the return switch 113 is pressed, the device operation control by the rhythm input can be performed again.

  Note that when the user presses the rhythm prohibition switch 112 and is in an operation prohibition state, an LED provided in the slave unit 108a may emit light to notify the user of the operation prohibition valid state. At this time, when the return switch 113 is pressed next time, the LED turns off. Alternatively, as a switch that doubles as the rhythm prohibition switch 112 and the return switch 113, a switch having a configuration in which the state can be discriminated by the position of the operation unit such as a toggle switch or a rocker switch is used to make the rhythm operation prohibition valid or invalid. May be determined.

  Further, a rhythm input control prohibition setting function while the vehicle is running will be described. When the user gets into the automobile and starts the engine and starts running, the running detection means 114 that detects running based on the vehicle speed outputs information that the vehicle is running to the processing unit 106. When the processing unit 106 recognizes that the vehicle is traveling, the operation prohibition is enabled, the device control unit 104 prohibits the operation of the device 103, and the control unit 106 does not issue a control command to the device control unit 104. The rhythm input control of all connected devices 103 is prohibited. Therefore, even if a signal unintended by the user, such as vibration noise due to running, is input to the control means and coincides with the control content of the stored rhythm pattern, the control means never controls the connected device. Absent.

  Here, a description will be given of a system that allows a user to edit a registered rhythm pattern so that it matches the input rhythm pattern of the rhythm dictionary in which the rhythm pattern is registered.

  The rhythm pattern storage unit 105 includes a storage device such as a RAM, a ROM, or a hard disk. The rhythm pattern storage unit 105 stores a rhythm dictionary table, parameters necessary for input rhythm pattern recognition, and setting information regarding a feedback method.

  It is assumed that the rhythm dictionary table is defined in advance by the user registering a rhythm pattern according to the control content name. Parameters required for input rhythm pattern recognition (hereinafter referred to as recognition parameters) include the beat and rest level thresholds, the strong and weak beat level thresholds, the long interval time, This is information necessary for detecting temporal changes in the rhythm input signal, such as the end interval time.

  The setting information related to the feedback method (hereinafter referred to as feedback setting information) refers to information indicating whether the content to be fed back to the user is a screen display, audio output, or vibration.

The output unit 115 includes a screen device such as a display, a sound generation device such as a speaker and an amplifier, a vibration device such as a vibrator, and the like, and is a sensation device for applying some stimulus to the user's five senses.

  The processing unit 106 includes a CPU, a memory, and the like, refers to the recognition parameters stored in the rhythm pattern storage unit 105, analyzes the rhythm input signal output from the vibration detection unit 102, and recognizes the input rhythm pattern. To do. The processing unit 106 refers to the rhythm dictionary table stored in the rhythm pattern storage unit 105 to determine whether there is a registered rhythm pattern that matches the recognized input rhythm pattern. If there is a matching registered rhythm pattern, the processing unit 106 feeds back the determination result to the user via the output unit 115 and controls the operation of the apparatus 103.

  FIG. 15 is a flowchart showing the operation of the processing unit 106 which is also a content changing unit when the user confirms / edits the content of the rhythm dictionary table. Hereinafter, the operation of the processing unit 106 when the user confirms / edits the contents of the rhythm dictionary table will be described with reference to FIG.

  First, when the processing unit 106, which is a changing unit, enters the rhythm dictionary confirmation / editing operation, for example, displays options such as “addition / correction”, “confirmation”, and “deletion” on the screen of the output unit 115. The user is allowed to select an item by touching the screen (step S801).

  When the user selects “add” in step S801, the processing unit 106 displays options such as “input by character” and “input by rhythm” on the screen of the output unit 115, and waits for the user's input (step S801). S802).

  In step S802, when the user selects an input based on a rhythm, the processing unit 106 receives a rhythm input signal from the vibration detecting unit 102 (step S803), recognizes an input rhythm pattern (step S804), and step S807. Proceed to the operation.

  In step S802, when the user selects input by characters, the processing unit 106 receives character input from the user via a character input unit (not shown) such as a keyboard and a voice recognition unit (step S805), Characters are converted into rhythm patterns (step S806), and the process proceeds to step S807. In step S806, the processing unit 106 converts the input character into a rhythm pattern by dividing the input character into predetermined units and assigning a predetermined unit rhythm pattern to each unit after the division.

  In step S807, the processing unit 106 checks whether or not the rhythm pattern determined in step S804 or S806 overlaps with an existing registered rhythm pattern stored in the rhythm pattern storage unit 105. Since the number of rhythm patterns that can be taken is limited, rhythm patterns may overlap. Accordingly, the processing unit 106 makes a determination as in step S807.

  If there are overlapping registered rhythm patterns, the processing unit 106 returns to step S802 to prompt the user to input again. On the other hand, when there is no overlapping rhythm pattern, the processing unit 106 registers a new rhythm pattern and control content in the rhythm pattern storage unit 105 (step S808), and ends the process. In addition, when correcting, the process part 106 changes the rhythm pattern corresponding to the registered control content name to a new rhythm pattern. Here, the control content may be designated by the user, or the processing unit 106 may cause the user to select the control content. As described above, the processing unit 106 adds the registered contents of the rhythm dictionary table by registering a rhythm pattern by directly operating the rhythm to the user or by inputting characters to the user. Or correct it.

  Returning to the description of the operation after step S801. In step S801, when the user selects “confirm”, the processing unit 106 causes the output unit 115 to experience the registered rhythm pattern selected by the user (step S809), and ends the process. Specifically, the output unit 115 displays an animation pattern on the screen or displays an audio pattern according to the beat of the registered rhythm pattern (strong beat or weak beat if there is strength) and / or the pause tempo. Outputs a vibration pattern. Thereby, the user can experience the registered rhythm pattern.

  In step S801, when the user selects “delete”, the processing unit 106 deletes the item corresponding to the selected rhythm pattern from the rhythm pattern storage unit 105 (step S810), and ends the process.

  Thus, since the control system can let the user experience the registered rhythm pattern, the user can learn the registered rhythm pattern.

  Further, the control system can perform editing such as addition, correction, and deletion of the rhythm dictionary in accordance with rhythm input and character input by the user. Therefore, since it is possible to construct a customized rhythm dictionary, it is possible to determine a rhythm pattern according to individual differences among users, and convenience is improved.

  Further, the operation of the vibration detection unit 102 will be described. The configuration shown in FIG. 14 is different from the configuration in which the simultaneous deformation portion is deformed when the turning curvature radius of the bending portion 4a of the configuration used in the first embodiment is increased or decreased, and the piezoelectric sensor is obtained by displacing the arm 20 The plurality of bent portions 4a are deformed in the direction in which the four turning planes bend. As a result, when detecting a minute displacement at the time of contact of a person or an object by detecting the displacement of the movable portion 19c, it is detected by simultaneous deformation of a plurality of locations of the piezoelectric sensor. If there are many locations, the amount of charge generated by the piezoelectric effect increases by the amount of the bent portion, and the output signal can be increased. Therefore, the sensitivity of the piezoelectric sensor 4 is improved, and detection with higher sensitivity and higher output becomes possible.

  Therefore, a sufficient signal output can be obtained by simply touching the contact detection target, and a touch on the contact detection target can be detected. When the sensitivity of the piezoelectric sensor 4 is improved, even in the signal processing means housed in the detection means 5, for example, the signal processing gain can be reduced, so that the influence of electrical noise can be reduced. The number of mounted amplifiers can be reduced and the unit can be downsized. Further, since it is not necessary to expose the electrode, it is not easily affected by disturbance, adhering dust, rain, snow, or the like. Furthermore, since the cable-like piezoelectric sensor can be flexibly deformed, there are few restrictions on the installation location, and the arrangement space is also reduced.

  In the present embodiment, when the piezoelectric sensor 4 is swung by the bent portion 4a, the winding shape of the piezoelectric sensor 4 is sequentially stacked so as to be the same shape. For example, the piezoelectric sensor 4 is like a mosquito coil. The multi-layer superposed portion 9 is formed by swirling in a spiral shape to form the bent portion 4a, or turning the piezoelectric sensor 4 in a spherical shape from various directions to form a bent portion 4a as in the case of making a handle. Alternatively, the piezoelectric sensor 4 may be meandered to form a simultaneous deformation portion having a plurality of bent portions 4a. Even if the simultaneous deformation portion A of the piezoelectric sensor 4 is not provided in the bent portion 4a, for example, when meandering, a plurality of parallel linear piezoelectric sensors may be arranged so as to be simultaneously deformed. The same effect can be obtained if the amount of deformation of the simultaneous deformation portion is large.

As described above, since the operation prohibiting means includes the return means for returning from the valid state to the invalid state, the user is prohibited from rhythm input control in order to prevent malfunction of the apparatus due to mischief or noise that does not require rhythm input. If you want to use the rhythm input again without worrying about device malfunction after operation, there is a return means from the rhythm prohibition enabled state. This makes it possible to control the operation of the apparatus, thereby improving convenience.

  In addition, since the vehicle has a traveling detection means and the vehicle is configured to enable the operation prohibiting means during traveling, the traveling detection means determines whether the vehicle is traveling or stopped, and is traveling. When the determination is made, the control means activates the operation prohibiting means and stops the apparatus operation control by rhythm input. Then, even if a signal not intended by the user, such as vibration noise due to running, is input to the control means and happens to coincide with the control content of the stored rhythm pattern, the control means never controls the operation of the connected device. It is possible to prevent malfunction of the device against the user's intention.

  It should be noted that at least one function of the function of the return means in Embodiment 2 of the present invention or the function of enabling the operation prohibiting means during traveling may be used in Embodiment 1.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIGS. In the following description, the same components as those described above are denoted by the same reference numerals, and the description thereof is omitted. The door handle device 600 is assembled to a door (door outer panel) 63 of the vehicle. The handle 61 has a handle body 23 that supports one end side 23a on a door 63 via a support shaft 21 so as to be swingable, and moves the other end side 23b in the pulling direction by this swinging. That is, a handle 61 called a pull-rise type, a grip type, or a grab type with a hinge on one side is formed.

  FIG. 17 is a schematic configuration diagram of the inside of the handle 61. In the same figure, a flexible cable-like piezoelectric sensor 4 is mounted on a handle bracket together with the detecting means 5 and fixed to the outer panel 63. The piezoelectric sensor 4 is formed in a swivel shape (winding shape) so as to have a plurality of bent portions that are simultaneously deformed portions by the binding bands 67a and 67b. A part of the turning shape portion (winding shape portion) is fixed to the position restricting portion 66, and the other side of the winding shape is connected to the arm portion 64 of the handle via a support portion 65 made of a leaf spring. It is integrally fixed to the movable part of the support part 65 so as to move in conjunction. The detecting means 5 is fixed in the bracket by the fixing portion 5c, and similarly, the position restricting portion 66 is fixed in the bracket by the fixing portion 66a, and the support portion 65 is a movable portion at a portion in contact with the arm portion 64. Thus, it is being fixed in the bracket in the shape of a cantilever by the fixing part 65a. In this way, only a part of the swivel portion of the piezoelectric sensor is fixed, and the others are fixed in a loose fitting state having a play portion.

  FIG. 18A is a diagram of the third embodiment viewed from the z direction in FIG. 17 when the handle is in the normal position. FIG. 18B is a diagram of the third embodiment viewed from the z direction in FIG. 17 when the handle is pulled in the front b direction. As shown in FIGS. 18A and 18B, the wound shape portion 4g of the piezoelectric sensor 4 is pulled in conjunction with the displacement of the arm 64 before and after the operation, so that the turning plane is bent. It is deformed.

  With this configuration, when detecting a minute displacement upon contact of a person or an object, a plurality of bent portions formed in the wound shape portion of the piezoelectric sensor 4 are simultaneously deformed by the displacement of the arm. High output can be detected.

(Embodiment 4)
As a fourth embodiment of the present invention, a configuration may be adopted in which a piezoelectric sensor is provided in the slave unit and a predetermined rhythm can be input from the slave unit. Since the slave unit has both authentication and rhythm input functions, the system can be rationalized and the convenience is improved. Furthermore, even if there is a car in the place without lighting at night, it can be easily taken out and operated if it is a portable handset, and can be easily operated at night by operating the handset under illumination.

(Embodiment 5)
As a fifth embodiment of the present invention, an authentication stop setting unit capable of setting authentication stop may be provided. With this configuration, for example, when the user carrying the child device to be authenticated is away from the parent device and does not want to perform rhythm input, if authentication stop setting is performed by the authentication stop setting means, the authentication operation is not performed. . At this time, even if an unnecessary rhythm input is made by a third party, the authentication operation is stopped, so that the rhythm input is not accepted and no malfunction occurs.

  In the present embodiment, the user authentication means is composed of a wireless slave unit and a master unit. However, for example, it may be configured to authenticate biometrics applications such as iris and vein pattern. In the present embodiment, the vibration detection means for detecting taps as an input means is provided in the rhythm. However, it may be configured to detect other physical quantities and input the rhythm. For example, a light emitting element and a light receiving element are provided on a door, and a rhythm input is performed by detecting a change in reflected light caused by a user's action, or an infrared sensor is provided to detect a change in infrared ray caused by a user's action. It is good also as composition which performs input. Moreover, it is good also as a structure which detects the change of the electromagnetic field by a user's hand holding, or detects a capacitance change, a volume change, a change of distance, etc., and performs a rhythm input.

  In addition, for example, a device that wants to control vibration detection means such as arranging the piezoelectric sensor 4 on the side mirror 103c, tapping the side mirror 103c to input a rhythm, and storing and unfolding the side mirror 103c. It is good also as a structure arrange | positioned in itself, and the convenience improves.

  In addition, it is possible to provide a vehicle in which the door handle device of the above embodiment is applied to a smart entry system using a door such as a side door or a tailgate, or a building applied to a smart entry system using a door such as a front door. As a result, the operability and functionality of the door handle portion are improved, and a multifunctional and convenient door handle device can be realized.

  Moreover, it is good also as a structure which performs various control of another apparatus based on the output signal of the door handle apparatus of the said embodiment. For example, the door handle device of the above embodiment is arranged on a door such as a power slide door, a power hatch back door of a car, an automatic door of a building, etc., and detects the operation of the door handle to control the automatic opening and closing of the door. The convenience is often improved. At this time, as described in the description of the operation of the above embodiment, the polarity of the output signal of the piezoelectric sensor 4 is reversed between when the door handle 3 is pulled from the outside of the vehicle and when the door handle 3 is pushed, For example, when the door handle 3 is pulled from the outside of the vehicle, the door is opened, and when the door handle 3 is pushed from the outside of the vehicle, the door is closed. It is good also as a structure to perform.

  Further, the door opening / closing speed may be controlled according to the magnitude of the output signal of the piezoelectric sensor 4. For example, if the door opening / closing speed is increased as the output signal of the piezoelectric sensor 4 increases, the door handle 3 is strongly operated to increase the output signal from the piezoelectric sensor 4 if the door is to be opened and closed quickly. Well, convenience is improved.

As described above, since the control system using rhythm input according to the present invention is provided with the rhythm input operation prohibiting means, it is possible to prohibit the operation of rhythm input by a person other than the user. Therefore, since it is possible to provide a control system using a rhythm input that does not cause a malfunction as in the past and also improves security, for example, as a control system using a rhythm input in various fields other than the door of an automobile. Applicable. For example, if it is applied to doors and gates of houses and office buildings, it is possible to control residential equipment such as indoor lighting and air conditioners without entering the house, and a control system using rhythm input that combines security and convenience. realizable. It can also be used as a simple remote control device in facilities where people are restricted from entering, such as nuclear facilities and factory clean rooms. Application is also possible.

The block diagram of the control system using the rhythm input in the 1st Embodiment of this invention 1 is an external view of an automobile door provided with a control system using a rhythm input according to the first embodiment of the present invention. 1 is an external view of the handle bracket 2 according to the first embodiment of the present invention as viewed from the outside of the vehicle. 1 is an external view of the handle bracket 2 according to the first embodiment of the present invention as viewed from the vehicle interior side. The principal part expansion perspective view of the handle bracket 2 in the 1st Embodiment of this invention Sectional drawing of the piezoelectric sensor 4 in the 1st Embodiment of this invention The figure which shows an example of the rhythm pattern in the 1st Embodiment of this invention The characteristic view which shows the signal V amplified and filtered by the detection means in the 1st Embodiment of this invention, and the determination output J1 of a determination part Schematic showing how the door handle 3, piezoelectric sensor 4, support means 8, and arm portion 10 are displaced when the door handle 3 is operated. (A) Schematic diagram showing how the door handle 3, piezoelectric sensor 4, support means 8, and arm 10 are displaced before the door handle is operated. (B) Door handle 3, piezoelectric sensor 4, when the door handle is operated. Schematic showing how the support means 8 and the arm 10 are displaced The characteristic view which shows the signal V amplified and filtered by the detection means in the 1st Embodiment of this invention, and the determination output J2 of a determination part The characteristic view which shows the relationship between the number of bending locations of the piezoelectric sensor in the 1st Embodiment of this invention, and an output signal The block diagram of the control system using the rhythm input in the 2nd Embodiment of this invention (A) External view of the handle bracket 2 according to the second embodiment of the present invention viewed from the inside of the vehicle (b) Schematic view of FIG. 14 (a) viewed from the S direction A flowchart showing the operation when the user confirms / edits the contents of the rhythm dictionary table External view of an automobile door provided with a control system using a rhythm input in the third embodiment of the present invention External view of the handle bracket according to the third embodiment of the present invention as seen from the vehicle interior side (A) External view of the third embodiment viewed from the z direction in FIG. 17 when the handle is in the normal position (b) When the handle is pulled in the b direction in the figure, from the z direction in FIG. External view of the third embodiment

Explanation of symbols

3 Door handle 4 Piezoelectric sensor 4b Center electrode 4c Piezoelectric body 4d Outer electrode (braided metal wire)
4e Coating layer 100 Door handle device 101 Control system 102 Vibration detection means (rhythm input means)
DESCRIPTION OF SYMBOLS 103 apparatus 104 apparatus control part 105 rhythm pattern memory | storage part 106 process part 108 user authentication means 110 authentication permission means 600 door handle apparatus

Claims (10)

In a control system for controlling the operation of a device based on an instruction by a rhythm from a user, a rhythm input means for a user to input a rhythm, and a control means for recognizing the input rhythm pattern and performing an apparatus operation corresponding to the rhythm pattern A control system in which the operation part for inputting the rhythm is provided outside the structure containing the device to be operated. The control system according to claim 1, wherein the rhythm input means is vibration detection means for detecting rhythm vibration from a user. The control system according to claim 2, wherein the rhythm input means is a coaxial cable-shaped piezoelectric sensor. A user authentication unit, and an authentication permission unit that permits device operation when the user authentication unit authenticates the user. Even if the control unit receives an input of a rhythm pattern while the authentication permission unit is in an unauthenticated state. The control system according to claim 1, wherein the device operation is not performed. 5. The control system according to claim 4, further comprising user authentication means, wherein user authentication is always performed (at least at intervals of 1 minute or less, preferably at intervals of 5 seconds or less). The control system according to claim 4 or 5, wherein the rhythm input means is provided in a portable device held by a user. The control system according to any one of claims 4 to 6, further comprising notification means for notifying a user that a rhythm input has been accepted. 8. A vehicle equipped with the control system according to any one of claims 4 to 7, wherein the structure is a vehicle body and the rhythm input means is provided at one location of the vehicle body. Rhythm input means is disposed on the door handle of the automobile, and based on the output signal of the rhythm input means, opening and closing of the automobile window, lighting of the room light, storage of the side mirror, blinking of the hazard lamp, operation of the air conditioner, The vehicle according to claim 8, wherein the operation of an on-vehicle device such as an engine is controlled. The automobile according to claim 8 or 9, further comprising a smart entry system, wherein an authentication means also serves as an authentication operation of the smart entry system.

Images