JP5135094B2 - Vehicle remote control device - Google Patents

Description

  The present invention relates to a vehicle remote control device.

2. Description of the Related Art Conventionally, there has been known a control device that performs an opening operation, a closing operation, and a reversing operation of a vehicle slide door when a slide door operation signal transmitted from, for example, a portable controller is received (see, for example, Patent Document 1).
JP 2003-253961 A

By the way, in the control device according to an example of the above-described prior art, it is not sufficient to simply perform the opening operation, the closing operation, and the reversing operation of the vehicle sliding door when the sliding door operation signal transmitted from the portable controller is received. Even if it is difficult to see the vehicle from a remote location, the slide door of the vehicle can be easily operated, and the desired safety may not be ensured.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle remote control device capable of ensuring desired safety.

  In order to solve the above problems and achieve the object, a vehicle remote control device according to a first aspect of the present invention includes a mobile terminal capable of transmitting an operation signal (for example, the mobile terminal 11 in the embodiment), A vehicle remote control device (for example, in the embodiment) provided with a vehicle-mounted control device (for example, the vehicle-mounted control device 12 in the embodiment) that can control the vehicle by receiving the operation signal transmitted from the portable terminal The vehicle remote control device 10), wherein the in-vehicle control device includes a reception intensity detection means (for example, a reception intensity detection unit 31 in the embodiment) for detecting the reception intensity of the operation signal, and the reception intensity and a predetermined value. Comparing means for comparing the values (for example, the received intensity comparing unit 32 in the embodiment) and the operation of the predetermined device of the vehicle are prohibited when the received intensity is equal to or less than the predetermined value in the comparison result by the comparing means Ban Means (e.g., device control section 34 in the embodiment) and a said inhibiting means inhibits the closing operation of the opening and closing of the vehicle.

  Furthermore, in the vehicle remote control device according to the second aspect of the present invention, the in-vehicle control device includes a plurality of receiving means having different reception sensitivities (for example, two first antennas A and second antennas B in the embodiment). The reception intensity detection means detects the reception intensity of the operation signal based on the reception state of the operation signal for each of the plurality of reception means.

According to the vehicle remote control device according to the first aspect of the present invention, when various devices of the vehicle are controlled in accordance with operation signals transmitted from the mobile terminal, the operating state or operating environment of the device is visually recognized by the operator. Operation of the device that does not necessarily require confirmation (for example, unlocking and locking of the vehicle door) is permitted regardless of the distance between the mobile terminal 11 and the vehicle, and the operation state or operation of the device by the operator's visual recognition. For devices that require favorable environmental confirmation (for example, automatic doors such as sliding doors and tailgates), it is possible to prevent the vehicle from being easily operated in a state where it is difficult to see the vehicle from an excessively remote location. By doing so, it is possible to ensure desired safety against remote operation of the vehicle. Moreover, by prohibiting the closing operation of the opening / closing body of the vehicle, the opening / closing body is unnecessarily closed without being visually recognized by the operator due to, for example, an erroneous operation of the operator of the mobile terminal. And the desired safety can be further ensured.
According to the vehicle remote control device according to the second aspect of the present invention, it is possible to easily detect the reception intensity.

  Hereinafter, a vehicle remote control device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, for example, the vehicle remote control device 10 according to the present embodiment includes a mobile terminal 11 and an in-vehicle control device 12 that can receive an operation signal transmitted from the mobile terminal 11 and execute an answerback. I have.
And the vehicle-mounted control apparatus 12 is provided with the communication apparatus 21, the processing apparatus 22, and the actuator 23, for example, and the processing apparatus 22 is the receiving intensity detection part 31, the receiving intensity comparison part 32, and the answer back control part 33. The device control unit 34 is provided.

The mobile terminal 11 is capable of wireless communication with the in-vehicle control device 12 and transmits an operation signal having predetermined terminal-side identification information in accordance with an input operation by the operator, and in response to the operation signal, the in-vehicle control device 12. When the response signal by the answerback is received from, it is determined whether or not the predetermined vehicle-side identification information included in the response signal matches the terminal-side identification information. Various operations according to the response signal, for example, display of the direction of presence of the in-vehicle control device 12 (that is, the direction of presence of the vehicle) and the state of the vehicle are performed on a display unit (not shown).
The operation signal output from the mobile terminal 11 is a command signal for instructing operations of various devices of the vehicle. For example, each unlocking signal and locking signal for instructing unlocking and locking of the vehicle door, and a sliding door And an opening / closing signal for instructing opening / closing of an automatic opening / closing door such as a tailgate, and a driving signal for instructing operations of an electric seat and an electric lift.

The communication device 21 of the in-vehicle control device 12 includes an antenna 21a having a predetermined minimum reception sensitivity, receives an operation signal transmitted from the mobile terminal 11, and includes predetermined terminal-side identification information included in the received operation signal. It is determined whether or not the vehicle-side identification information is matched, and if the match is recognized, the received operation signal is output to the reception intensity detection unit 31 of the processing device 22.
Moreover, the communication apparatus 21 transmits the response signal by the answerback output from the answerback control part 33 of the processing apparatus 22 with predetermined vehicle side identification information.
Note that the communication device 21 may be provided with a plurality of antennas.

The reception intensity detection unit 31 of the processing device 22 includes, for example, an RSSI (Received Signal Strength Indicator) circuit, and the like. The reception intensity of the operation signal transmitted from the mobile terminal 11 and received by the communication device 21 is determined based on the current related to the operation signal. And detected by measuring the voltage.
The reception intensity comparison unit 32 of the processing device 22 compares the reception intensity detected by the reception intensity detection unit 31 with a predetermined value, and determines whether or not the reception intensity is equal to or less than the predetermined value.

  For example, as shown in FIG. 2, the electric field strength (reception strength) received by the communication device 21 of the in-vehicle control device 12 with respect to the operation signal transmitted from the mobile terminal 11 depends on the distance from the mobile terminal 11. As the distance increases, the electric field strength tends to decrease. Therefore, for example, when the predetermined distance L1 shorter than the detectable upper limit distance Lth of the distance from the mobile terminal 11 corresponds to the predetermined electric field strength R1 larger than the minimum reception sensitivity Rth of the communication device 21 of the in-vehicle control device 12, the processing When the reception intensity detected by the reception intensity detector 31 of the device 22 is smaller than the predetermined electric field strength R1, the distance between the mobile terminal 11 and the in-vehicle control device 12 is longer than the predetermined distance L1, while the reception of the processing device 22 When the reception intensity detected by the intensity detection unit 31 is equal to or greater than the predetermined electric field intensity R1, it is determined that the distance between the mobile terminal 11 and the in-vehicle control device 12 is shorter than the predetermined distance L1.

  The answerback control unit 33 of the processing device 22 responds to an operation signal transmitted from the portable terminal 11 and received by the communication device 21. A hazard lamp (not shown) is turned on, a buzzer (not shown) is blown, and the vehicle direction on the mobile terminal 11 is notified.

The device control unit 34 of the processing device 22 drives various devices of the vehicle according to the operation signal output from the mobile terminal 11 when the reception strength is larger than a predetermined value in the determination result by the reception strength comparison unit 32. The operation of the actuator 23 is controlled. For example, for each unlocking signal and locking signal instructing unlocking and locking of the vehicle door, an actuator (for example, door lock actuator) 23 for locking and unlocking the vehicle door is driven and controlled. In response to an opening / closing signal for instructing opening / closing of an automatic opening / closing door such as a tailgate, the actuator (for example, an opening / closing actuator) 23 for opening / closing the automatic opening / closing door is driven and controlled, for example, operation of an electric seat, an electric lift, etc. In response to the drive signal, the actuator 23 that drives the electric seat and the electric lift is driven and controlled.
In addition, when the reception intensity is equal to or lower than a predetermined value in the determination result by the reception intensity comparison unit 32, the apparatus control unit 34 performs a predetermined operation (for example, the operation state of the apparatus by the visual recognition of the operator or the Confirmation of the operating environment is a preferable operation, and execution of automatic doors such as sliding doors and tailgates is prohibited.

  The vehicle remote control device 10 according to the present embodiment has the above-described configuration. Next, the operation of the vehicle remote control device 10 will be described with reference to the accompanying drawings.

First, in step S01 shown in FIG. 3, the in-vehicle control device 12 determines whether or not an operation signal has been received from the mobile terminal 11.
If the determination result is “NO”, the determination process of step S01 is repeatedly executed.
On the other hand, if this determination is “YES”, the flow proceeds to step S 02.

In step S02, the reception intensity of the received operation signal is detected.
In step S03, it is determined whether the reception intensity is less than a predetermined value.
If the determination result is “NO”, the process proceeds to step S04. In step S04, for example, a sliding door and a tailgate, which are preferable operations to check the operation state or the operation environment of the device by visual recognition of the operator, etc. The operation of the actuator 23 for driving various devices of the vehicle is permitted in accordance with the operation signal output from the mobile terminal 11 including the closing operation of the automatic opening / closing door, the process proceeds to the end, and the process is terminated.
On the other hand, if this determination is “YES”, the flow proceeds to step S 05.

In step S05, the operator performs a predetermined input operation on the mobile terminal 11, for example, a special operation other than a normal operation, such as a special operation in a predetermined order for a plurality of input buttons provided in the mobile terminal 11. In response to a command signal transmitted in response to, for example, a closing instruction for instructing execution of a closing operation of an automatic opening / closing door such as a sliding door and a tailgate, which is a preferable operation to check the operating state or operating environment of the device by the operator's visual recognition. It is determined whether or not an operation permission command is output.
If this determination is “YES”, the flow proceeds to step S 04 described above.
On the other hand, if this determination is “NO”, the flow proceeds to step S 06.
Then, in step S06, among the operations of the actuator 23, for example, it is a predetermined operation that preferably confirms the operating state or operating environment of the device by visual recognition of the operator, and the closing operation of the automatic opening / closing doors such as the slide door and the tailgate. Is prohibited, the process proceeds to the end, and the process is terminated.

As described above, according to the vehicle remote control device 10 according to the present embodiment, the electric field strength of the operation signal transmitted from the mobile terminal 11 increases as the distance between the mobile terminal 11 and the vehicle increases. Since it changes to a decreasing tendency, it is determined whether or not the reception intensity of the operation signal in the in-vehicle control device 12 is equal to or less than a predetermined value, and various devices of the vehicle are set according to the operation signal transmitted from the mobile terminal 11. When controlling, the operation of the device that does not necessarily require confirmation of the operating state or operating environment of the device by visual recognition of the operator (for example, unlocking and locking the vehicle door) is a distance between the mobile terminal 11 and the vehicle. Regardless of the device (such as automatic doors such as sliding doors and tailgates) that allow the user to check the operating state or operating environment by visual recognition, it is excessive. By septum was viewing position etc. of the vehicle is prevented from becoming easily operable under difficult conditions, it is possible to ensure the desired security against remote operation of the vehicle.
In particular, when the reception intensity is below a predetermined value, for example, an operator of the portable terminal 11 is prohibited by prohibiting a closing operation of a vehicle opening / closing body (for example, an automatic opening / closing door such as a sliding door and a tailgate or a power window). It is possible to prevent the opening / closing body from being unnecessarily closed without the operator seeing the situation around the opening / closing body due to an erroneous operation, and to further ensure the desired safety.

In the above-described embodiment, the reception intensity comparison unit 32 can change the predetermined value compared with the reception intensity detected by the reception intensity detection unit 31 according to, for example, an input operation by the operator or, for example, for each vehicle. It may be.
As a result, for example, as shown in FIG. 4, the predetermined value is greater than the minimum reception sensitivity Rth of the communication device 21 of the in-vehicle control device 12 according to the input operation by the operator or for each vehicle, and from the mobile terminal 11. In a state in which the first predetermined electric field strength Ra corresponding to the first predetermined distance La shorter than the detectable upper limit distance Lth is set, the reception intensity detected by the reception intensity detection unit 31 of the processing device 22 is a predetermined value. Is smaller than the first predetermined distance La, while the reception intensity detected by the reception intensity detection unit 31 of the processing device 22 is greater than or equal to a predetermined value, It is determined that the distance between the mobile terminal 11 and the in-vehicle control device 12 is shorter than the first predetermined distance La.

  Further, the predetermined value is greater than the minimum reception sensitivity Rth of the communication device 21 of the in-vehicle control device 12 and smaller than the first predetermined electric field strength Ra as a predetermined value in accordance with an input operation by the operator or for each vehicle. In a state where the second predetermined electric field strength Rb corresponding to the second predetermined distance Lb which is shorter than the detectable upper limit distance Lth of the distance from the terminal 11 and longer than the first predetermined distance La is set, the reception intensity of the processing device 22 When the reception intensity detected by the detection unit 31 is smaller than a predetermined value, the distance between the mobile terminal 11 and the in-vehicle control device 12 is longer than the second predetermined distance Lb, while the reception intensity detection unit 31 of the processing device 22 When the detected reception intensity is greater than or equal to a predetermined value, it is determined that the distance between the mobile terminal 11 and the in-vehicle control device 12 is shorter than the second predetermined distance Lb.

  In the above-described embodiment, the reception intensity detection unit 31 of the processing device 22 directly detects the reception intensity of the operation signal received by the communication device 21 by measuring current and voltage. However, the present invention is not limited to this. For example, an RSSI (Received Signal Strength Indicator) circuit or the like is omitted, and the communication apparatus 21 includes a plurality of antennas (for example, two first antennas A and second antennas B) having different reception sensitivities. Depending on whether the operation signal transmitted from the portable terminal 11 has been received (that is, whether the operation signal is received at each of the plurality of antennas as the reception state of the operation signal at each of the plurality of antennas) The reception intensity may be detected.

  For example, as shown in FIG. 5, for the first antenna A and the second antenna B having relatively higher reception sensitivity than the first antenna A, the operation signals are transmitted by the two first antennas A and B. Can be received, it is determined that the distance between the mobile terminal 11 and the in-vehicle control device 12 is shorter than the first detectable upper limit distance LAth corresponding to the minimum reception sensitivity Rth at the first antenna A. When the operation signal can be received by the second antenna B although the operation signal cannot be received by the first antenna A, the distance between the mobile terminal 11 and the vehicle-mounted control device 12 is the minimum at the first antenna A. It is determined to be longer than the first detectable upper limit distance LAth corresponding to the reception sensitivity Rth and shorter than the second detectable upper limit distance LBth corresponding to the lowest reception sensitivity Rth at the second antenna B. It is is will be.

In the above-described embodiment, the determination process for the reception intensity of the operation signal output from the mobile terminal 11 is collectively executed in the in-vehicle control device 12 as in the third modified example shown in FIGS. 6 and 7, for example. Alternatively, for example, as in the fourth modification shown in FIGS. 8 and 9, various devices (for example, a door lock actuator of a vehicle door, a power slide door, a power tailgate, (Power tail lift, power window, power lift, etc.) may be executed individually.
That is, in the above-described embodiment, a plurality of predetermined values to be compared with the received intensity of the received operation signal are not provided for each of various devices that are the operation target of the operation signal, and a single predetermined value and the operation signal A value obtained by weighting the reception intensity for each device may be compared, or a predetermined value to be compared with the reception strength of the received operation signal may be compared for each device to be operated by the operation signal. A plurality of them may be provided.

For example, in the third modification of the embodiment described above, first, in step S11 shown in FIG. 6, the in-vehicle control device 12 determines whether or not the radio wave of the operation signal has been received from the mobile terminal 11.
If this determination is “NO”, the flow proceeds to the end.
On the other hand, if this determination is “YES”, the flow proceeds to step S12.
In step S12, an RSSI (Received Signal Strength Indicator) circuit of the reception intensity detection unit 31 that detects the reception intensity of the received operation signal performs RSSI signal conversion processing on the received operation signal, and receives the reception intensity. The RSSI value concerning is calculated.

In step S13, a code (that is, command content) is acquired from the received operation signal.
In step S14, it is determined whether or not the acquired code has been normally confirmed.
If the determination result is “NO”, it is determined that the code has not been normally acquired from the received operation signal, and the process proceeds to the end.
On the other hand, if the determination is “YES”, the flow proceeds to step S15.

Then, in step S15, it is determined whether or not the acquired code instructs to lock the vehicle door (door lock).
If this determination is “NO”, the flow proceeds to step S 19 described later.
On the other hand, if this determination is “YES”, the flow proceeds to step S16.
In step S16, a value obtained by calculating a predetermined weight Wt (1) (for example, Wt (1) = 1) for the locking (door lock) of the vehicle door to the RSSI value (for example, RSSI value × Wt (1)) is newly set as the RSSI value.

In step S17, it is determined whether or not the RSSI value is equal to or greater than a predetermined threshold (for example, threshold = 10).
If this determination is “NO”, the flow proceeds to the end.
On the other hand, if this determination is “YES”, the flow proceeds to step S18.
In step S18, the acquired code is transmitted, and the process proceeds to the end.

In step S19, it is determined whether or not the acquired code instructs to unlock the vehicle door (door unlock).
If this determination is “NO”, the flow proceeds to step S 23 described later.
On the other hand, if the determination is “YES”, the flow proceeds to step S20.
In step S20, a value (for example, RSSI) obtained by calculating a predetermined weight Wt (2) (for example, Wt (2) = 1) for unlocking (door unlocking) of the vehicle door to the RSSI value. Value × Wt (2)) is newly set as the RSSI value.

In step S21, it is determined whether or not the RSSI value is equal to or greater than a predetermined threshold (for example, threshold = 10).
If this determination is “NO”, the flow proceeds to the end.
On the other hand, if this determination is “YES”, the flow proceeds to step S22.
In step S22, the acquired code is transmitted, and the process proceeds to the end.

In step S23, it is determined whether or not the acquired code instructs the start (start) of the opening operation of the slide door (PSD) that can be electrically opened and closed of the vehicle.
When the determination result is “NO”, the operation is performed in the same manner as the processing described in steps S15 to S18 described above, steps S19 to S22 described above, or steps S23 to S26 described below. A process (not shown) for determining and transmitting a code is executed for each type of device that is a signal operation target.
On the other hand, if this determination is “YES”, the flow proceeds to step S24.
In step S24, a value obtained by calculating a predetermined weight Wt (3) (for example, Wt (3) = 0.5) for the start of the sliding door (PSD) of the vehicle to the RSSI value (for example, RSSI value × Wt (3)) is newly set as the RSSI value.

In step S25, it is determined whether or not the RSSI value is equal to or greater than a predetermined threshold (for example, threshold = 10).
If this determination is “NO”, the flow proceeds to the end.
On the other hand, if the determination is “YES”, the flow proceeds to step S26.
In step S26, the acquired code is transmitted, and the process proceeds to the end.

Below, in this 3rd modification, the control processing for every various apparatuses connected to the vehicle-mounted control apparatus 12 by vehicle-mounted communication networks (for example, CAN (Controller Area Network) etc.) is demonstrated.
For example, in step S31 shown in FIG. 7, it is determined whether or not a CAN signal transmitted from the in-vehicle control device 12, that is, a signal including a command content (code) for the operation of the device is received.
If this determination is “YES”, the flow proceeds to step S32.
On the other hand, if this determination is “NO”, the flow proceeds to the end.
In step S32, control output corresponding to the received code is performed, the process proceeds to the end, and the process is terminated.

  In the third modification, the predetermined threshold value in the RSSI value determination process (for example, steps S17, 21, 25, etc.) is a single value, and each control process for each type of device is different from each other. Weights Wt (1),... Are set.

For example, in the fourth modification of the above-described embodiment, first, in step S41 illustrated in FIG. 8, the in-vehicle control device 12 determines whether or not an operation signal radio wave has been received from the mobile terminal 11.
If this determination is “NO”, the flow proceeds to the end.
On the other hand, if this determination is “YES”, the flow proceeds to step S42.
In step S42, an RSSI (Received Signal Strength Indicator) circuit of the reception intensity detector 31 that detects the reception intensity of the received operation signal performs RSSI signal conversion processing on the received operation signal, and receives the reception intensity. The RSSI value concerning is calculated.

In step S43, a code (that is, command content) is acquired from the received operation signal.
In step S44, it is determined whether or not the acquired code has been normally confirmed.
If the determination result is “NO”, it is determined that the code has not been normally acquired from the received operation signal, and the process proceeds to the end.
On the other hand, if this determination is “YES”, the flow proceeds to step S45.

In step S45, it is determined whether or not the acquired code indicates locking of the vehicle door (door lock).
If this determination is “NO”, the flow proceeds to step S 47 described later.
On the other hand, if this determination is “YES”, the flow proceeds to step S46.
In step S46, the acquired code and RSSI value are transmitted, and the process proceeds to the end.

In step S47, it is determined whether or not the acquired code instructs to unlock the vehicle door (door unlock).
If this determination is “NO”, the flow proceeds to step S 49 described later.
On the other hand, if this determination is “YES”, the flow proceeds to step S48.
In step S48, the acquired code and RSSI value are transmitted, and the process proceeds to the end.

In step S49, it is determined whether or not the acquired code instructs the start (start) of the opening operation of the slide door (PSD) that can be electrically opened and closed.
When the determination result is “NO”, the operation is performed in the same manner as the processing described in steps S45 to S46 described above, steps S47 to S48 described above, or steps S49 to S50 described below. A process (not shown) for determining and transmitting a code is executed for each type of device that is a signal operation target.
On the other hand, if this determination is “YES”, the flow proceeds to step S50.
In step S50, the acquired code and RSSI value are transmitted, and the process proceeds to the end.

Below, in this 4th modification, the control processing for every various apparatuses connected to the vehicle-mounted control apparatus 12 by vehicle-mounted communication networks (for example, CAN (Controller Area Network) etc.) is demonstrated.
For example, in step S61 shown in FIG. 9, it is determined whether or not a CAN signal transmitted from the in-vehicle control device 12, that is, a signal including an instruction content (code) and an RSSI value for the operation of the device is received.
If this determination is “YES”, the flow proceeds to step S62.
On the other hand, if this determination is “NO”, the flow proceeds to the end.
In step S62, it is determined whether the received RSSI value is equal to or greater than a predetermined threshold value.
If this determination is “YES”, the flow proceeds to step S63.
On the other hand, if this determination is “NO”, the flow proceeds to the end.
In step S63, a control output corresponding to the received code is performed, the process proceeds to the end, and the process ends.

  In the fourth modification, the predetermined threshold value in the RSSI value determination process (for example, step S62) for each type of device is set for each type of device.

It is a lineblock diagram of a vehicle remote control device concerning an embodiment of the present invention. It is a graph which shows an example of the change of the electric field strength according to the distance of the operation signal output from the portable terminal which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the vehicle remote control apparatus which concerns on embodiment of this invention. It is a graph which shows an example of the change of the electric field strength according to the distance of the operation signal output from the portable terminal which concerns on the 1st modification of embodiment of this invention. It is a graph which shows an example of the change of the electric field strength according to the distance of the operation signal output from the portable terminal which concerns on the 2nd modification of embodiment of this invention. It is a flowchart which shows operation | movement of the vehicle remote control apparatus which concerns on the 3rd modification of embodiment of this invention. It is a flowchart which shows the operation | movement of the control processing for every various apparatuses connected to the vehicle remote control apparatus which concerns on the 3rd modification of embodiment of this invention. It is a flowchart which shows operation | movement of the vehicle remote control apparatus which concerns on the 4th modification of embodiment of this invention. It is a flowchart which shows the operation | movement of the control processing for every various apparatuses connected to the vehicle remote control apparatus which concerns on the 4th modification of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle remote control apparatus 11 Portable terminal 12 Car-mounted control apparatus 21a Antenna 31 Reception intensity detection part (reception intensity detection means)
32 Reception strength comparison unit (comparison means)
34 Equipment control section (prohibited means)

Claims (2)

A vehicle remote control device comprising: a portable terminal capable of transmitting an operation signal; and an in-vehicle control device capable of receiving the operation signal transmitted from the portable terminal and controlling the vehicle;
The in-vehicle control device is
Reception intensity detection means for detecting the reception intensity of the operation signal;
A comparison means for comparing the received intensity with a predetermined value;
A prohibiting unit that prohibits the operation of a predetermined device of the vehicle when the received intensity is equal to or lower than the predetermined value in the comparison result by the comparing unit;
The vehicle remote control device according to claim 1, wherein the prohibiting unit prohibits a closing operation of the opening / closing member of the vehicle. The in-vehicle control device includes a plurality of receiving means having different receiving sensitivities,
2. The vehicle remote control device according to claim 1, wherein the reception intensity detection unit detects a reception intensity of the operation signal based on a reception state of the operation signal for each of the plurality of reception units.

Images