JP2013068035A - Child lock release device - Google Patents

Abstract

There is provided a child lock releasing device capable of smoothly releasing a child lock from a vehicle interior while suppressing power consumption.
A child lock releasing device mounted on a car having a child lock function, wherein a power control means 150 for detecting that a door knob of the car has been pulled and controlling power on to the apparatus, and a child ID storage means 130 for storing the first number string for releasing the lock, tone signal input means 110 for receiving a plurality of tone signals transmitted from the mobile phone by user input, and the received plurality of tone signals Tone signal recognizing means 120 for converting the first numerical string to a second number string, and a match determining means 140 for comparing the second number string with the first number string stored in the ID storage means to determine whether or not they match. The coincidence determination means 140 releases the child lock when it is determined that the first number string and the second number string match.
[Selection] Figure 1

Description

  The present invention relates to a child lock release device for releasing a child lock of a car using a mobile phone.

  There is a car with a child lock function that prevents the rear seat door from being opened from the passenger compartment so that a small child does not accidentally open the door while riding. If you open the door, move the child lock knob to the ON side, and then close the door, the door will not open even if the child accidentally releases the key from the inside.

  Child lock is a convenient feature to prevent accidents in small children, but it is also inconvenient. For example, in the state where the child lock is applied, the door cannot be opened from the inside even if it is an adult riding in the rear seat, so it is possible to get off unless the front seat occupant opens it from the outside could not.

  In order to solve such a problem, it is necessary to consider a method in which an adult who is a passenger in the rear seat can release the child lock from the inside in a manner that cannot be easily performed by a small child. In general, various techniques have been developed to date using conventional techniques for unlocking keys. For example, a system has been developed in which power is turned on by radio waves from a mobile phone and a key such as a door is unlocked with an ID number by a tone signal that is a push sound of the mobile phone (see Patent Document 1).

JP 2000-31248 A

  However, it takes time and effort to turn on the release system by inserting the mobile phone antenna at a predetermined location as in the prior art. Moreover, if the detection sensitivity of the radio wave is increased to save the trouble, even if there is no intention to release it, the power is turned on only by possessing it.

  In addition, when a power-on signal using radio waves is used in the vehicle, certainty may be lost due to noise or the like. Furthermore, in order to operate, it is necessary to always maintain a constant power source, and there is a possibility that the battery runs out. Therefore, it is necessary to keep power consumption to a minimum.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a child lock releasing device that can smoothly release a child lock from the vehicle interior while suppressing power consumption.

  In order to achieve the above object, the present invention is a child lock release device mounted on a car having a child lock function, which detects that a door knob of the car has been pulled and controls the power supply to the apparatus. Power control means, ID storage means for storing ID for releasing child lock, tone signal input means for receiving a plurality of tone signals transmitted from a mobile phone by user input, and a plurality of received tone signals Tone signal recognizing means for converting the first numerical string to a first number string, and a coincidence determining means for determining whether the first number string is compared with the ID stored in the ID storage means. The child lock is released when it is determined that the numeric string of 1 matches the ID.

  The ID storage means further stores a registration mode ID. The match determination means shifts to the registration mode when the first numeric string matches the registration mode ID. A plurality of tone signals transmitted from the mobile phone by the input of the above are converted into a second number string, and the second number string is stored in the ID storage means as an ID for releasing the child lock.

  The ID stored in the ID storage means may be set from an in-vehicle device connected to the outside.

  According to the child lock release device of the present invention, when the child lock is applied when the door knob is pulled, the child lock release device is automatically turned on, and then the ID number is transmitted to smoothly release the child lock. can do. In addition, since no power is required until the door knob is pulled, power consumption can be reduced.

The block diagram which shows the structure of the child lock release apparatus of 1st embodiment of this invention The figure which shows the combination of the frequency of the tone signal corresponding to the telephone number key The flowchart which shows the flow of operation | movement at the time of "registration mode" of the child lock release apparatus of 1st embodiment of this invention The flowchart which shows the flow of operation | movement at the time of "release mode" of the child lock release apparatus of 1st embodiment of this invention. The block diagram which shows the structure of the child lock release apparatus of 2nd embodiment of this invention. The flowchart which shows the flow of operation | movement of the child lock release apparatus in 2nd embodiment of this invention.

  Hereinafter, a child lock release apparatus according to an embodiment of the present invention will be described with reference to the drawings. The embodiment of the present invention described below shows a preferred specific example of the present invention. The numerical values, shapes, components, arrangement of components, connection forms, and the like shown in this embodiment are merely examples, and are not intended to limit the present invention. The invention is limited only by the claims. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims are not necessarily required to achieve the object of the present invention, but are described as constituting more preferable embodiments. The

(Embodiment 1)
The configuration of the child lock release device according to the first embodiment of the present invention will be described with reference to the block diagram of FIG. In FIG. 1, the child lock release apparatus 100 of the present embodiment includes a tone signal input means 110, a tone signal recognition means 120, an ID storage means 130, a coincidence determination means 140, a power supply control means 150, and a registration start. Means 160 are provided. In addition to the child lock release device 100, FIG. 1 also shows a rear seat door knob 200, a door lock release mechanism 300, and a mobile phone 400 owned by the user, which are provided in a car having a child lock function. .

  The tone signal input unit 110 is a microphone and accepts a tone signal input from the mobile phone 400. The tone signal input means 110 may be installed anywhere near the rear seat, but is preferably installed at a predetermined position on the rear door to be released from the viewpoint of the user's understanding. More preferably, it is installed in the vicinity of a door knob that allows a user in the rear seat to easily receive a tone signal emitted from a mobile phone.

  The tone signal recognizing unit 120 recognizes the tone signal received by the tone signal input unit 110 and identifies a number (including symbols “#” and “*”). The standard stipulates that the tone signal emitted from the cellular phone 400 is transmitted as a synthesized signal sound of two voice frequency bands of the low group and the high group shown in FIG. For example, when the user presses the “1” button of the mobile phone 400, a synthesized sound of two audio signals of 697 Hz and 1209 Hz is emitted as a tone signal. Therefore, since it does not depend on a mobile phone, the user in the rear seat can operate using his / her mobile phone.

  The tone signal recognizing means 120 detects two frequencies from the received tone signal and identifies the number pressed by the user based on the table shown in FIG. When tone signals are continuously input, they are specified as converted numeric strings.

  The ID storage unit 130 is constituted by a nonvolatile recording medium, and may be a semiconductor memory such as FLASHROM or EEPROM (registered trademark) or an HDD. A numerical string obtained by converting a tone signal input in a “registration mode” described later is stored as an ID. Here, the registered ID may be one digit, but is preferably two digits or more in order to prevent a small child from imitating and canceling it.

  The coincidence determination unit 140 determines whether or not the numeric string stored in the ID storage unit 130 matches the numeric string specified by the tone signal recognition unit 120.

  The power control means 150 includes a switch that detects that the door knob 200 of the rear door of the vehicle has been operated, and turns on the child lock release device 100. A function may be provided to turn off the power to the child lock release device 100 by detecting that a predetermined time has elapsed after the power is turned on or that the rear door has been opened. In this way, power is supplied to the child unlock device 100 only when necessary, and battery consumption can be suppressed.

  The registration start unit 160 includes a switch and is operated by a user to send a “registration mode” start signal to be described later to the tone signal recognition unit 120. The “registration mode” start signal is also sent to the power control unit 150 in advance, and the power control unit 150 turns on the power when the child lock release device 100 is not powered on.

  Here, the switch of the registration start means 160 can also be used as a switch for detecting that the door knob 200 of the rear door of the vehicle by the power supply control means 150 is operated. In this case, by detecting an operation that cannot be performed by the normal operation of the door knob 200, such as continuing to pull the door knob 200 for a predetermined time or a predetermined number of times, a “registration mode” start signal is sent to the tone signal recognition means 120. You may do it. By doing so, it is not necessary to provide a separate switch, and power is turned on by the power control means 150 by operating the door knob 200, so there is no need to instruct the power control means 150 to turn on power in advance. .

  Next, the processing flow of the child lock releasing device 100 when the registration start means 160 detects a user operation and the “registration mode” starts will be described with reference to the flowchart of FIG. This “registration mode” is a process in which the ID is stored in the ID storage means 130 by the user operating the mobile phone 400 to form a numeric string for releasing the child lock.

  First, when the “registration mode” is entered, a tone signal input is waited for (step S10). When the user inputs a number to be registered with the mobile phone 400, a corresponding tone signal is input to the tone signal input unit 110, and the tone signal recognition unit 120 detects the input (Yes in step S10). The tone signal recognizing means 120 converts the input tone signal into a number (step S11).

  Next, the tone signal recognizing unit 120 determines whether or not the input from the user has been completed (step S12). The determination condition includes, for example, when there is no input of a tone signal for a predetermined time, whether a predetermined number of numeric strings are detected, or a tone signal other than a number indicating the end of input (for example, “*” or “#”). ”) Is detected, it can be determined that the input from the user has been completed. If it is determined that the input from the user has not been completed yet (No in step S12), the process returns to step S10 to wait for the input of a tone signal corresponding to the next number.

  If it is determined in step S12 that the user input has been completed (Yes), the tone signal recognizing unit 120 stores the converted number string in the ID storage unit 130 as an ID (step S13). Next, after a predetermined time elapses, the power control unit 150 turns off the power for power saving (step S13) and ends the process. In step S13, when the ID is stored in the ID storage unit 130, the user may be informed that the registration is normally performed by lighting the lamp or by voice.

  As described above, the user can register an ID for releasing the child lock in the ID storage unit 130 using the mobile phone 400.

  In addition, when it is preferable that the ID is managed by the driver, a numeric string input by an in-vehicle device such as a navigation device provided in the console is used as the ID storage unit 130 so that the driver can easily input the ID. It may be configured to be stored in

  Next, the child lock release ("release mode") operation will be described with reference to the flowchart of FIG. When the user pulls the door knob, the power control means 150 detects that the door knob has been pulled, and the child lock releasing device 100 is turned on to enter the “release mode”.

  When the “release mode” is entered, the input of the tone signal is waited (step S20). When the user inputs a number with the mobile phone 400, the corresponding tone signal is input to the tone signal input means 110, and the tone signal recognition means 120 detects the input (Yes in step S20). The tone signal recognizing means 120 converts the input tone signal into a number (step S21).

  Next, the tone signal recognizing unit 120 determines whether or not the input from the user is completed (step S22). The determination condition includes, for example, when there is no input of a tone signal for a predetermined time, whether a predetermined number of numeric strings are detected, or a tone signal other than a number indicating the end of input (for example, “*” or “#”). ”) Is detected, it can be determined that the input from the user has been completed. If it is determined that the input from the user has not been completed yet (No in step S22), the process returns to step S20 to wait for the input of the tone signal corresponding to the next number.

  If it is determined in step S22 that the user's input has been completed (Yes), the coincidence determination unit 140 compares the numeric string input by the user with the ID stored in the ID storage unit 130 (step S23). If the match determination unit 140 determines that the number string and the ID match (Yes in step S23), the process proceeds to step S25. If the match determination unit 140 determines that they do not match (No in step S23), The user is notified of the mismatch by voice (step S24) and waits for the user's input again (step S20).

  In step S25, since the digit string and the ID match, the coincidence determination means 140 instructs the door lock release mechanism 300 of the car to release the door lock on the side where the user of the rear door pulled the door knob 200, The door lock is released by the door lock release mechanism 300 (step S25).

  Next, by detecting that a predetermined time has elapsed or the rear door has been opened, the power supply control means 150 cuts off the power supply to the child lock release device 100 for power saving (step S26), and processing Exit.

  As described above, in the “release mode”, the user can release the child lock of the rear door by inputting the same numeric string as the ID registered in the “registration mode” with the mobile phone 400. In many cases, the user usually finds out that the child lock is applied when the door knob 200 is pulled to get out of the vehicle. The user always pulls the door knob 200 to get out of the vehicle, and the child lock release device 100 is turned on by detecting this.

  The user notices that the child lock is applied, and the door lock is released by inputting a numeric string corresponding to the ID registered in the mobile phone that the user has. Therefore, the user does not need to perform a useless operation for turning on the power. Further, normally, since the door lock release device is not turned on, battery consumption can be suppressed.

  In the case of a small child, it is rare that he owns his own mobile phone, and even if an attempt is made to perform the release operation by imitating with the parent's mobile phone, it cannot be released without knowing the ID.

  The user's action of pulling the door knob 200 is an indication of the user's intention to open the side door. Since only the child lock release device 100 corresponding to the door pulled by the user is powered on and operated, even if a small child sits on the opposite door side by mistake, the opposite door is released. Absent.

  Therefore, the child lock can be released from the passenger compartment without impairing the safety of the child lock function.

(Embodiment 2)
Hereinafter, the configuration of the child lock releasing apparatus 500 according to the second embodiment of the present invention will be described with reference to the block diagram of FIG. 5 differs from FIG. 1 in that the registration start unit 160 is not provided, and therefore the operations of the ID storage unit 530 and the coincidence determination unit 540 are different. Since other components are the same as those in the first embodiment, the same reference numerals are given and description thereof is omitted.

  The ID storage unit 530 stores, as an ID, a numeric string obtained by converting the tone signal input in the “registration mode” as in the first embodiment, but in addition to this, the registration mode ID for entering the “registration mode”. Is remembered. The registration mode ID is composed of a specific numeral string or a symbol (for example, “*” or “#”) that can be input from the mobile phone 400 as a tone signal other than numerals. It is preferable to assign “***”, “##”, etc. from the viewpoint of easy understanding by the user, and they are registered in advance.

  Similar to the first embodiment, the coincidence determination unit 540 determines whether the ID for cancellation stored in the ID storage unit 530 and the numeric string specified by the tone signal recognition unit 120 match. In addition, it is determined whether the numeric string specified by the tone signal recognizing unit 120 matches the registration mode ID stored in the ID storage unit 530. If they match, the “registration mode” is set. The tone signal recognition means 120 is notified to enter.

  Next, operations in the “registration mode” and the “release mode” of the child lock release device 500 will be described with reference to the flowchart of FIG.

  When the user pulls the door knob 200, it is detected that the door knob 200 has been pulled, and the child lock release device 500 is turned on and waits for a tone signal input (step S200). Hereinafter, the processing of step S21 and step S22 is the same as the processing of FIG.

  If it is determined in step S22 that the user's input has been completed (Yes), the coincidence determination unit 540 compares the numeric string input by the user with the registration mode ID stored in the ID storage unit 530 (step S30). ). If the match determination unit 540 determines that the numeric string matches the registration mode ID (Yes in step S30), the match determination unit 540 notifies the tone signal recognition unit 120 to shift to “registration mode”, and the process proceeds to step S10. If it is determined that they do not match (No in step S30), the process proceeds to step S23.

  The processing from step S10 to S14 is the same as the processing of “registration mode” shown in FIG. On the other hand, if the number string input by the user in step 30 does not match the registration mode ID (No), the match determination unit 540 stores the child number string stored in the ID storage unit 530 in step 23. It is determined whether the ID matches the unlocking ID. Thereafter, the processing from step S23 to step S26 is the same as the processing of the “release mode” shown in FIG.

  As described above, in the child lock release device 500 of the second embodiment, the match determination unit 540 detects the start of the registration mode based on the registration mode ID stored in the ID storage unit 530. The switch of the registration start unit 160 shown in FIG.

  In the first and second embodiments, the ID is stored in the “registration mode” in the ID storage unit, but an arbitrary number string may be written in advance.

  In addition, although the ID is registered in the ID storage means by the mobile phone from the “registration mode”, it can be written from another device having a number input means such as an in-vehicle device connected to the outside. Good.

  As described above, according to the child lock release device of the present invention, the child lock can be smoothly released from the vehicle interior while suppressing power consumption, and is useful for a vehicle having a child lock function. .

100, 500 Child lock release device 110 Tone signal input means 120 Tone signal recognition means 130, 530 ID storage means 140, 540 Match determination means 150 Power supply control means 160 Registration start means 200 Door knob 300 Door lock release mechanism 400 Mobile phone

Claims (3)

A child lock release device mounted on a vehicle having a child lock function, wherein the vehicle lock is detected by detecting that a door knob of the vehicle has been pulled, and power control to the device is controlled. ID storage means for storing an ID for canceling, tone signal input means for receiving a plurality of tone signals transmitted from a mobile phone by user input, and the received plurality of tone signals in a first number string A tone signal recognizing means for converting; and a coincidence determining means for determining whether the first number string is compared with the ID stored in the ID storage means, and the coincidence determining means includes the first number. A child lock releasing device that releases the child lock when it is determined that the column and the ID match. The ID storage means further stores a registration mode ID. The match determination means shifts to a registration mode when the first number string matches the registration mode ID, and the tone signal recognition means Then, a plurality of tone signals transmitted from the mobile phone by the user's input are converted into a second number string, and the second number string is stored in the ID storage means as an ID for releasing the child lock. The child lock release device according to claim 1. The child lock release device according to claim 1, wherein the ID stored in the ID storage means is set from an in-vehicle device connected to the outside.

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