JP2015093581A - On-vehicle dock, electronic equipment, theft detection program, theft detection method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress consumption of power when theft is detected.SOLUTION: An on-vehicle dock 10, which comprises a power receiving coil 21 and to which electronic equipment 20 for notifying theft on the basis of induction electromotive force to be generated in the power receiving coil 21 can be attached, comprises: a power supply coil 11 provided at a position facing the power receiving coil 21 when the electronic equipment 20 is attached to the on-vehicle dock 10; and a magnet 12 provided in the power supply coil 11. The on-vehicle dock 10 generates the induction electromotive force in the power receiving coil 21 by the magnet 12 when the electronic equipment 20 is removed in a state where the power supply coil 11 is not energized.

Description

  The present invention relates to an antitheft system for an electronic device detachably mounted on a vehicle.

  Conventionally, it has a primary coil that is mounted in an instrument panel and transmits a transmission signal, and a secondary coil that is mounted on an in-vehicle electronic device and receives a transmission signal of the primary coil. There is an anti-theft system that emits an alarm sound when a change in mutual impedance is detected (see Patent Document 1).

JP 2003-48512 A

  In the anti-theft system described in Patent Document 1, power is supplied to the primary coil and power is consumed while the anti-theft system is operating. For this reason, in the anti-theft system of patent document 1, there exists a possibility that the power consumption of a battery may increase by operation | movement of an anti-theft system.

  The present invention has been made in order to solve the above-described problems, and its main purpose is to suppress power consumption when detecting theft.

  The present invention has been made to solve the above problems, and is an in-vehicle dock that includes a power receiving coil and can be attached to an electronic device that notifies theft based on an induced electromotive force generated in the power receiving coil. When the electronic device is removed with the power supply coil provided at the position facing the power receiving coil and the magnet provided on the power supply coil when the device is attached and the power supply coil is not energized. An induced electromotive force is generated in the power receiving coil by a magnet.

  According to the above configuration, since the theft is notified based on the induced electromotive force generated in the power receiving coil when the electronic device is removed, no power supply to the power supply coil is required when notifying the theft, and the theft is notified. Power consumption can be suppressed. In addition, since the power supply coil is provided at a position facing the power reception coil, it is not necessary to provide means having only a function of supplying power, and the manufacturing cost of the in-vehicle dock can be reduced.

  Further, the present invention is an electronic device that can be attached to a vehicle-mounted dock including a power supply coil provided with a magnet, and a power receiving coil provided at a position facing the power supply coil when attached to the vehicle-mounted dock; An informing means for informing the occurrence of theft, and informing by the informing means when an induced electromotive force is generated in the power receiving coil in a state where no power is received by the power receiving coil.

  According to the above configuration, since the theft is notified based on the induced electromotive force generated when the electronic device is removed, the power receiving coil does not need to receive power when notifying the theft, and the power consumption when notifying the theft Can be suppressed. In addition, since the power receiving coil is provided at a position facing the power feeding coil, it is not necessary to include means having only a function of receiving power, and the manufacturing cost of the electronic device can be reduced.

  Further, the present invention is a theft detection program, which can be attached to a vehicle-mounted dock including a power supply coil provided with a magnet, and a power receiving coil provided at a position facing the power supply coil when attached to the vehicle-mounted dock. The electronic device is provided such that when an induced electromotive force is generated in the power receiving coil in a state where power is not received by the power receiving coil, a process of notifying the theft is executed.

  According to the above configuration, since the theft is notified based on the induced electromotive force generated when the electronic device is removed, the power receiving coil does not need to receive power when notifying the theft, and the power consumption when notifying the theft It is possible to provide a theft detection program capable of suppressing

  In addition, the present invention is mounted on a vehicle and includes an in-vehicle dock including a power feeding coil, and an electronic device including a power receiving coil provided at a position facing the power feeding coil when attached to the in-vehicle dock. And a theft detection method using a magnet provided on one of the power supply coil and the power reception coil, in which the power supply coil or the power reception coil is not energized. When power is generated, the occurrence of theft is notified.

  According to the above configuration, power can be exchanged, and theft is detected by the induced electromotive force generated when the electronic device is removed without supplying power to the power supply coil when theft is detected. Therefore, theft detection capable of suppressing power consumption can be realized.

  The present invention is also an in-vehicle dock that can be attached to an electronic device that is mounted on a vehicle and includes a power receiving coil provided with a magnet, and is provided at a position facing the power receiving coil when the electronic device is attached. A power supply coil and a notification means for notifying the occurrence of theft, and when the induced electromotive force is generated in the power supply coil in a state in which the power supply coil is not energized, the notification means performs notification. .

  According to the above configuration, since the theft is notified based on the induced electromotive force generated in the power receiving coil when the electronic device is removed, when the theft is notified, the power feeding coil is not required and the theft is notified. Power consumption can be suppressed. In addition, since the power supply coil is provided at a position facing the power reception coil, it is not necessary to provide means having only a function of supplying power, and the manufacturing cost of the in-vehicle dock can be reduced.

It is a block diagram of 1st Embodiment. It is a figure which shows the flow to the alert | report of theft in 1st Embodiment. It is a flowchart which shows operation | movement of the vehicle-mounted dock of 1st Embodiment. It is a flowchart which shows operation | movement of the wireless terminal of 1st Embodiment. It is a block diagram of 2nd Embodiment. It is a figure which shows the flow to alert | report theft in 2nd Embodiment. It is a flowchart which shows operation | movement of the vehicle-mounted dock of 2nd Embodiment.

  Hereinafter, each embodiment will be described with reference to the drawings. In the following embodiments, parts that are the same or equivalent to each other are denoted by the same reference numerals in the drawings, and the description of the same reference numerals is used.

(First embodiment)
FIG. 1 is a configuration diagram showing a theft detection system according to the present embodiment. The theft detection system according to the present embodiment includes an in-vehicle dock 10 and a wireless terminal 20 that is an electronic device. The in-vehicle dock 10 is mounted on a vehicle instrument panel or the like. The wireless terminal 20 that is an electronic device is a car navigation device that performs map display, route search, and the like. The wireless terminal 20 is detachably attached to the in-vehicle dock 10, and the user can remove the wireless terminal 20 from the in-vehicle dock 10 when the vehicle is stopped or the like and can be used outside the vehicle.

  An ECU 31 is connected to the in-vehicle dock 10, and an in-vehicle antenna 32 and an in-vehicle battery 33 are connected to the ECU 31. That is, the in-vehicle dock 10 is connected to the in-vehicle antenna 32 and the in-vehicle battery 33 through the ECU 31.

  The in-vehicle dock 10 is provided with a power supply coil 11 wound around a magnet 12 and a first CPU 13. The first CPU 13 is driven by electric power supplied from the in-vehicle battery 33. The first CPU 13 has a function of controlling power feeding to the power feeding coil 11. Further, the first CPU 13 controls the in-vehicle antenna 32 via the ECU 31 and transmits / receives information through the in-vehicle antenna 32.

  The wireless terminal 20 is provided with a power receiving coil 21, a current detection IC 22, a second CPU 23, a communication antenna 24, and a driving battery 25.

  The power receiving coil 21 is provided at a position facing the power feeding coil 11 when the wireless terminal 20 is attached to the in-vehicle dock 10. Therefore, when power is supplied to the power feeding coil 11 in the in-vehicle dock 10, an induced electromotive force is generated in the power receiving coil 21, and power can be supplied from the in-vehicle dock 10 to the wireless terminal 20. The wireless terminal 20 drives the second CPU 23 and charges the driving battery 25 by power feeding.

  The current detection IC 22 has a function of detecting a current generated in the power receiving coil 21. The current detection IC 22 can be activated by an induced electromotive force generated when the wireless terminal 20 is detached from the in-vehicle dock 10.

  The second CPU 23 functions as a control unit for the communication antenna 24 by the installed program. The communication antenna 24 controlled by the second CPU 23 can communicate with the vehicle-mounted antenna 32. Further, the wireless terminal 20 includes a display (not shown), and a map or the like is displayed on the display. The second CPU 23 also has a function of performing display control of the display.

  The in-vehicle dock 10 and the wireless terminal 20 can be set to two types of modes, a normal mode and a theft detection mode, and the mode is changed by a user input operation.

  First, the operation in the normal mode will be described. In the normal mode, the feeding coil 11 is energized in the in-vehicle dock 10. When the power feeding coil 11 is energized, an induced electromotive force is generated in the power receiving coil 21 as described above, and power is supplied to the second CPU 23 and the driving battery 25. The supplied power is consumed by the driving of the second CPU 23 and is used for charging the driving battery 25 if the capacity of the driving battery 25 is less than a predetermined amount.

  Here, it is assumed that the wireless terminal 20 is removed from the in-vehicle dock 10 in the state set to the normal mode. When the wireless terminal 20 is removed from the in-vehicle dock 10, the induced electromotive force is generated or the induced electromotive force is changed. However, as long as the normal mode is set, the theft notification is not performed. After the removal, since no induced electromotive force is generated in the power receiving coil 21, the power supply source to the second CPU 23 is switched from the power receiving coil 21 to the driving battery 25, and power is supplied from the driving battery 25. It will be. It is also possible to communicate with the in-vehicle dock 10 via the communication antenna 24 driven by the power supplied from the driving battery 25, and to transmit and receive various data.

  Next, a flow until the user is set in the anti-theft mode and a theft report is made to the user will be described with reference to FIG.

  First, since the user normally uses in S101, the in-vehicle dock 10 and the wireless terminal 20 are set to the normal mode in S102 and S103, respectively. In S104, the user sets the wireless terminal 20 to the anti-theft mode, and in S105, the user leaves the vehicle. Then, in S106, the wireless terminal 20 shifts to the anti-theft mode, and the first CPU 13 of the in-vehicle dock 10 and the second CPU 23 of the wireless terminal 20 are stopped in S107 and S108, respectively.

  Here, when the wireless terminal 20 is removed in S109, an induced electromotive force is generated in the power receiving coil 21 in S110. Then, in S111, the current detection IC 22 is driven by the generated induced electromotive force, and the supply of power from the drive battery 25 to the second CPU 23 is started. As a result, the second CPU 23 is activated in S112, and in S113, a detection signal is transmitted to the in-vehicle dock 10 by the communication antenna 24 driven by the power supplied from the driving battery 25 in the same manner as the second CPU 23. In S114, when the vehicle-mounted antenna 32 receives the detection signal, supply of power from the vehicle-mounted battery 33 to the first CPU 13 is started, and the first CPU 13 is activated. In S115, the activated first CPU 13 controls the in-vehicle antenna 32 to transmit a notification signal to the mobile terminal owned by the user. Then, in S116, when the mobile terminal owned by the user receives the notification signal, the notification to the user is completed.

  Next, specific processing performed in the wireless terminal 20 will be described with reference to the flowchart of FIG. Note that the processing of FIG. 3 is executed at a predetermined cycle.

  First, in S201, it is determined whether or not a predetermined stop input operation from the user has been performed. If it is determined that no stop input has been made by the user, the series of processing ends. On the other hand, if it is determined that a stop input from the user has been made, a stop signal is transmitted to the in-vehicle dock 10 in S202, and the process waits until a stop completion signal is received from the in-vehicle dock 10 in S203. When a stop completion signal is received from the in-vehicle dock 10 in S203, the operation shifts to a theft detection mode in S204, and in S205, the supply of power from the driving battery 25 to the second CPU 23 is cut off, and the second CPU 23 is stopped.

  In S206, if it is determined that the current detection IC 22 is activated by the induced electromotive force generated in the power receiving coil 21 and the current is detected, supply of power from the drive battery 25 to the second CPU 23 is started and the second CPU 23 is activated in S207. To do. The activated second CPU 23 controls the communication antenna 24 to transmit a detection signal to the in-vehicle dock 10 in S208, and waits until an input for canceling the theft detection state is performed in S209. That is, for example, until the password set by the user is entered, the wireless terminal 20 is in a standby state and cannot be used. In S209, if a cancel input of the theft detection state is performed by the user, a return signal is transmitted to the in-vehicle dock 10 in S210, and the normal mode is shifted in S211 to end the series of processes.

  Here, in the theft detection mode, the detection of the current by the current detection IC 22 corresponds to the detection of the theft. Therefore, the transmission of the detection signal to the in-vehicle dock 10 by the communication antenna 24 is a notification of the theft. There is nothing to do. That is, the communication antenna 24 functions as a theft notification means.

  On the other hand, if the current detection IC 22 does not detect the current in S206 and the activation input from the user is performed in S212, the supply of power from the drive battery 25 to the second CPU 23 is started in S213. The second CPU 23 is activated. Here, the activation input may be performed by an input operation similar to the above-described theft release state, or may be performed by an input operation similar to the stop input. The activated second CPU 23 controls the communication antenna 24 to transmit an activation signal to the in-vehicle dock 10 in S214. In step S211, the process shifts to the normal mode, and a series of processing ends.

  If the current detection IC 22 does not detect a current in S206 and no activation input is made by the user in S212, the theft detection mode is maintained.

  Finally, specific processing performed in the in-vehicle dock 10 will be described using the flowchart of FIG. Note that the processing in FIG. 4 is also executed at a predetermined cycle as in the processing in FIG.

  First, in S301, it is determined whether or not a stop signal is received from the wireless terminal 20. In S301, when it is not determined that the stop signal from the wireless terminal 20 has been received, a series of processing ends.

  On the other hand, if it is determined in S301 that a stop signal from the wireless terminal 20 has been received, the process proceeds to the theft detection mode in S302. When shifting to the theft detection mode, it is necessary not to generate an induced electromotive force in the power receiving coil 21 of the wireless terminal 20, so power supply to the power supply coil 11 is stopped in S303, and the wireless terminal 20 is stopped in S304. Send a completion signal. In step S <b> 305, the first CPU 13 is stopped by cutting off the power supply from the in-vehicle battery 33 to the first CPU 13.

  In S306, when a detection signal is received from the wireless terminal 20, in S307, power from the in-vehicle battery 33 is input to the first CPU 13 via the ECU 31, and the first CPU 13 is activated. In step S308, the activated first CPU 13 issues a command to transmit a notification signal to the in-vehicle antenna 32, and transmits the notification signal to the communication terminal owned by the user. Thereafter, the process waits until a return signal is received from the wireless terminal 20 in S309. If it is determined that the return signal has been received, the process shifts to the normal mode in S310, starts feeding the power supply coil 11 in S311, and performs a series of processes. Exit.

  On the other hand, when the stop signal is not received from the wireless terminal 20 in S306 and the ECU 31 determines in S312 that the activation signal is received from the wireless terminal 20, supply of power from the in-vehicle battery 33 to the first CPU 13 is started. As a result, the first CPU 13 is activated in S313. In S310, the process shifts to the normal mode. In S311, the power supply to the power supply coil 11 is started, and the series of processes ends.

  If it is not determined in S306 that the detection signal is received from the wireless terminal 20 and the ECU 31 does not determine that the activation signal is received from the wireless terminal 20 in S312, the state where the first CPU 13 is stopped is maintained. .

  Since the theft detection system of the present embodiment has the above configuration, the following effects can be obtained.

  Detecting the theft because the current detection IC 22 is driven by the induced electromotive force generated when the wireless terminal 20 is removed without detecting the power supply to the power supply coil 11 when the theft is detected. The power consumption at the time of doing can be suppressed.

  Since power is supplied by the power feeding coil 11 and the power receiving coil 21, it is not necessary to provide each of the in-vehicle dock 10 and the wireless terminal 20 with a function having only a function of supplying power, and the manufacturing cost can be reduced. .

  Since the driving of the first CPU 13 and the second CPU 23 is stopped until the current detection IC 22 detects a current, power consumption in the first CPU 13 and the second CPU 23 can be suppressed.

(Second Embodiment)
FIG. 5 is a configuration diagram of this embodiment. As in the first embodiment, the present embodiment includes an in-vehicle dock 10 ′ and a wireless terminal 20 ′. An ECU 31 is connected to the in-vehicle dock 10 ′, and an in-vehicle antenna 32 and an in-vehicle battery 33 are connected to the ECU 31.

  In the present embodiment, unlike the first embodiment, the in-vehicle dock 10 ′ includes the current detection IC 14, the wireless terminal 20 ′ includes the magnet 26, and the power receiving coil 21 provided in the wireless terminal 20 ′ is connected to the magnet 26. It is rolled up.

  This embodiment is different from the first embodiment in that only the in-vehicle dock 10 'is set to the theft detection mode.

  Next, a flow until the user is set in the anti-theft mode and a theft report is made to the user will be described with reference to FIG.

  First, since the user normally uses in S401, the in-vehicle dock 10 'is set to the normal mode in S402. In S403, the user sets the in-vehicle dock 10 'to the anti-theft mode, and in S404, the user leaves the vehicle. Then, in S405, the in-vehicle dock 10 'shifts to the anti-theft mode, and the first CPU 13 of the in-vehicle dock 10' stops in S406.

  Here, when the wireless terminal 20 ′ is removed in S <b> 407, an induced electromotive force is generated in the feeding coil 11 in S <b> 408. Then, in S409, the current detection IC 14 is driven by the generated induced electromotive force, and supply of power from the in-vehicle battery 33 to the first CPU 13 is started. As a result, the first CPU 13 is activated in S410, the in-vehicle antenna 32 is controlled by the first CPU 13 in S411, and a notification signal is transmitted to a mobile terminal or the like owned by the user. In step S412, the mobile terminal owned by the user receives the notification signal, whereby the notification to the user is completed.

  Next, specific processing performed in the in-vehicle dock 10 'will be described with reference to the flowchart of FIG. Note that the process of FIG. 7 is executed at a predetermined cycle.

  First, in S501, it is determined whether or not a stop input from the user has been made. If it is determined that no stop input has been made by the user, the series of processing ends. On the other hand, if it is determined that the stop input from the user has been made, the power supply to the power supply coil 11 is stopped in S502, the operation proceeds to the theft detection mode in S503, and the power supply to the first CPU 13 is stopped in S504. .

  In S505, an induced electromotive force is generated in the power feeding coil 11, and when a current is detected by the current detection IC 14 driven by the generated induced electromotive force, power is supplied from the in-vehicle battery 33 to the first CPU 13 in S506. By starting, the first CPU 13 is activated. In S507, the activated first CPU 13 controls the in-vehicle antenna 32 to transmit a notification signal to the communication terminal owned by the user. After transmitting the notification signal, in step S508, the process waits until the user inputs to cancel the theft detection state. If an input for canceling the theft detection state is made in S508, the process proceeds to the normal mode in S509, and a series of processing ends.

  Here, in the theft detection mode, detecting the current by the current detection IC 14 is equivalent to detecting the theft, and therefore transmitting the notification signal to the mobile terminal owned by the user by the in-vehicle antenna 32 is a cause of the theft. This is nothing but notification. That is, the vehicle-mounted antenna 32 functions as a theft notification means.

  On the other hand, if no current is detected by the current detection IC 14 in S505 and a start-up input is made by the user in S510, supply of power from the in-vehicle battery 33 to the first CPU 13 is started in S511. The first CPU 13 is activated. In step S509, the process shifts to the normal mode, and the series of processes ends.

  If no current is detected by the current detection IC 14 in S505 and no activation input is made by the user in S510, the theft detection mode is maintained.

  Since the theft detection system of the present embodiment has the above configuration, the same effects as those of the first embodiment can be obtained.

<Modification>
In each of the above embodiments, the car navigation device is exemplified as the wireless terminals 20 and 20 ′, but it can also be used for a tablet terminal or a smartphone. Furthermore, in the second embodiment, since only the power receiving coil 21 and the magnet 26 are indispensable constituent requirements, the second embodiment can be applied to various electronic devices.

  In each of the above embodiments, the notification signal is transmitted to the communication terminal owned by the user, but the theft notification method is not limited to this. For example, it is possible to employ means such as sounding a horn provided in a vehicle or transmitting a report signal to a device other than the communication terminal owned by the user. A combination of these means can also be employed.

  In the first embodiment, the program may be stored in advance in a storage unit (not shown), or a unit that downloads and acquires a program through a communication line or a unit that acquires from a storage medium in which the program is recorded is adopted. May be.

  In each of the above embodiments, only the theft notification of the wireless terminals 20, 20 ′ is performed. However, the antitheft operation of the vehicle may be performed using the theft detection system of the wireless terminals 20, 20 ′. . In other words, a notification signal is transmitted to the communication terminal owned by the user, and a travel prohibiting means such as a means for locking the steering wheel, a means for locking the shift lever, a means for prohibiting engine starting, etc. is activated. The vehicle may be shifted to a state where it cannot move.

  By carrying out like this, since a theft prevention operation | movement is performed with the notification of a theft, theft of a vehicle can be prevented using the antitheft detection system of an electronic device.

  In the first embodiment, the detection signal is transmitted from the wireless terminal 20 to the in-vehicle dock 10 and the notification signal is transmitted from the in-vehicle dock 10 to the communication terminal owned by the user. It is good also as a structure which transmits a report signal to the communication terminal to perform.

  In each embodiment described above, the first CPU 13 of the in-vehicle docks 10 and 10 ′ and the in-vehicle antenna 32 are connected via the ECU 31. However, the in-vehicle antenna 32 may be provided in the in-vehicle docks 10 and 10 ′.

  In each of the above embodiments, the wireless terminal 20 is fed using the feeding coil 11 and the receiving coil 21, but functions other than feeding using the feeding coil 11 and the receiving coil 21, for example, signal Transmission / reception may be performed.

  DESCRIPTION OF SYMBOLS 10 ... In-vehicle dock, 10 '... In-vehicle dock, 11 ... Feeding coil, 12 ... Magnet, 20 ... Wireless terminal, 20' ... Wireless terminal, 21 ... Power receiving coil, 24 ... Communication antenna, 26 ... Magnet, 32 ... In-vehicle antenna .

Claims (7)

An in-vehicle dock (10) that is mounted on a vehicle and includes a power receiving coil (21) and to which an electronic device (20) that notifies theft based on an induced electromotive force generated in the power receiving coil can be attached,
A feeding coil (11) provided at a position facing the power receiving coil when the electronic device is attached;
A magnet (12) provided in the feeding coil,
An in-vehicle dock characterized in that an induced electromotive force is generated in the power receiving coil by the magnet when the electronic device is removed while the power feeding coil is not energized. An electronic device (20) that can be attached to an in-vehicle dock (10) including a feeding coil (11) provided with a magnet (12),
A power receiving coil (21) provided at a position facing the power feeding coil when attached to the vehicle dock;
An informing means (24) for informing the occurrence of theft,
An electronic device that performs notification by the notification means when an induced electromotive force is generated in the power receiving coil in a state where power is not received by the power receiving coil. The electronic apparatus further includes a control unit (23) for controlling the notification unit, and a drive battery (25) for supplying electric power to the control unit,
When power is not received by the power receiving coil in the state where it is attached to the vehicle-mounted dock, the driving of the control means is stopped, and when an induced electromotive force is generated in the power receiving coil, The electronic apparatus according to claim 2, wherein power supply is started to activate the control unit. A power receiving coil (21) that can be attached to a vehicle-mounted dock (10) including a power feeding coil (11) provided with a magnet (12), and that is provided at a position facing the power feeding coil when mounted on the vehicle-mounted dock In an electronic device (20) comprising
A theft detection program for executing a process of notifying a theft when an induced electromotive force is generated in the power receiving coil in a state where no power is received by the power receiving coil. A vehicle-mounted dock (10, 10 ') mounted on a vehicle and provided with a feeding coil (11);
An electronic device (20, 20 ′) that can be attached to the in-vehicle dock and includes a power receiving coil (21) provided at a position facing the feeding coil when attached to the in-vehicle dock;
A theft detection method using magnets (12, 26) provided in either the power feeding coil or the power receiving coil,
A theft detection method characterized by notifying the occurrence of a theft when an induced electromotive force is generated in either the power supply coil or the power receiving coil in a state where the power supply coil is not energized. An on-vehicle dock (10 ′) to which an electronic device (20 ′) mounted on a vehicle and provided with a power receiving coil (21) provided with a magnet (26) can be attached,
A feeding coil (11) provided at a position facing the power receiving coil when the electronic device is attached;
An informing means (32) for informing the occurrence of theft,
An in-vehicle dock characterized in that, when an induced electromotive force is generated in the power supply coil in a state where the power supply coil is not energized, notification is performed by the notification means. The vehicle includes an in-vehicle battery (33),
The in-vehicle dock is further provided with a control means (13) that is supplied with electric power from the in-vehicle battery and controls the informing means,
When the power supply coil is not energized with the electronic device attached, the driving of the control means is stopped, and when an induced electromotive force is generated in the power supply coil, The in-vehicle dock according to claim 6, wherein the control unit is activated by starting the supply of electric power.

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