JP2013106573A - Sound wave generation controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drive out small animals and insects from the inside and the circumference of a moving body before start of the moving body.SOLUTION: A sound wave generation control part 23 of a sound wave generation control system 11 mounted on an electric vehicle 1 starts generation of extermination sound from sound wave generation parts 25a and 25b when the start of the electric vehicle 1 is detected by a start detection part 21 and stops generation of extermination sound from the sound wave generation parts 25 when a regulation time is passed from the detection of the start of the electric vehicle 1 or when the start of the electric vehicle 1 is detected by a start detection part 22. The sound wave generation controller is, for example, applied to a system for driving out small animals, insects, etc., from the inside and the circumference of an electric vehicle.

Description

  The present invention relates to a sound wave generation control apparatus, and more particularly to a sound wave generation control apparatus suitable for use in driving away small animals, insects, and the like from inside and around a moving body.

  Conventionally, it has been proposed to generate a noise wave that repels insects and beasts when charging an electric vehicle to prevent the insects and beast from approaching the electric vehicle (see, for example, Patent Document 1).

  Conventionally, it has been proposed to remove harmful animals such as mice by connecting a high frequency generation circuit to a charger of a forklift and generating a high frequency during charging (see, for example, Patent Document 2).

  However, in the invention described in Patent Document 1 or 2, since generation of sound waves (including noise waves and high frequencies) stops when charging stops, it is possible to prevent small animals or insects from approaching the vehicle. Can not. Therefore, for example, when starting the vehicle for a while after stopping charging, or starting the vehicle without charging, there is a possibility that an accident involving small animals or insects that have entered under or inside the vehicle may occur. is there.

JP 2008-289432 A JP-A-7-144894

  The present invention makes it possible to drive off small animals, insects, and the like from inside and around the moving body before the moving body starts.

  The sound wave generation control device according to one aspect of the present invention starts generating a sound wave including a predetermined frequency toward or around the moving body when the moving body is detected to detect the start of the moving body. A sound wave generation control unit for stopping the generation of sound waves.

  In the sound wave generation control device according to one aspect of the present invention, when the start of the moving body is detected, generation of sound waves including a predetermined frequency is started toward or around the moving body, and the start of the moving body is detected. The generation of sound waves is stopped.

  Therefore, it is possible to drive away small animals and insects from inside and around the moving body before the moving body starts.

  The sound wave generation control device is configured by, for example, an ECU (Electrical Control Unit).

  The sound wave generation control unit can further stop the sound wave generation when a specified time has elapsed since the start of the sound wave generation.

  Thereby, after the moving body is started, the generation of sound waves is automatically stopped without starting the moving body.

  The sound wave generation control device may further include a start detection unit that detects the start of the moving body and a start detection unit that detects the start of the moving body.

  The start detection unit can determine that the mobile body has started when the parking brake of the mobile body is released or when the absolute value of the speed of the mobile body exceeds a predetermined threshold.

  The sound wave generation control device can further include a sound wave generator that generates sound waves.

  According to one aspect of the present invention, it is possible to drive away small animals, insects, and the like from inside and around the moving body before the moving body starts.

It is a schematic diagram showing an embodiment of a sound wave generation control system to which the present invention is applied. It is a flowchart for demonstrating a sound wave generation | occurrence | production control process.

Hereinafter, modes for carrying out the present technology (hereinafter referred to as embodiments) will be described. The description will be given in the following order.
1. Embodiment 2. FIG. Modified example

<1. Embodiment>
[1-1. Configuration example of sound wave generation control system 11]
FIG. 1 is a schematic diagram showing an embodiment of a sound wave generation control system 11 to which the present invention is applied.

  For example, as shown in FIG. 1, the sound wave generation control system 11 is provided in the electric vehicle 1. In addition, since the drive mechanism of the electric vehicle 1 is a motor, generation | occurrence | production of a sound and a vibration is small at the time of start and driving | running | working compared with the motor vehicle which uses an engine as a drive mechanism. Accordingly, even when small animals or insects are around the electric vehicle 1 or under the floor while the electric vehicle 1 is stopped, the electric vehicle 1 starts without feeling such noise or vibration. Probability is high. As a result, there is a high risk that such small animals and insects will hit or be hit by the electric vehicle 1.

  On the other hand, the sound wave generation control system 11 is a sound wave (hereinafter referred to as a disinfecting sound wave) for driving away small animals and insects (hereinafter referred to as a disinfecting object) from inside or around the electric vehicle 1 before the start of the electric vehicle 1. This is a system for controlling the occurrence of

  The sound wave generation control system 11 is configured to include a start detection unit 21, a start detection unit 22, a sound wave generation control unit 23, a timer 24, and sound wave generation units 25a and 25b.

  The start detection unit 21 detects the start of the electric vehicle 1 and supplies the detection result to the sound wave generation control unit 23. Here, any method can be adopted for detecting the start of the electric vehicle 1. For example, it is detected that the driver of the electric vehicle 1 has operated a switch for starting power supply to a drive circuit of a motor (not shown), and a battery (not shown) mounted on the electric vehicle 1 Examples include detection of a switch operation for supplying power to a part or all of the power, detection of a driver sitting on a driver's seat, and the like.

  The start detection unit 22 detects the start of the electric vehicle 1 and supplies a signal indicating the detection result to the sound wave generation control unit 23. An arbitrary method can be adopted as a method for detecting the start of the electric vehicle 1. For example, when the parking brake of the electric vehicle 1 is released, when the speed of the electric vehicle 1 is not zero, or when the absolute value of the speed of the electric vehicle 1 exceeds a predetermined threshold, The start of the electric vehicle 1 can be detected.

  The sound wave generation control unit 23 is constituted by, for example, an ECU (Electrical Control Unit) or the like, and controls the generation of the removal sound wave from the sound wave generation units 25a and 25b. The sound wave generation control unit 23 has a built-in timer 24.

  The sound wave generators 25a and 25b are constituted by, for example, an ultrasonic generator, a sound source, a speaker, and the like, and generate sound waves including a predetermined frequency. The sound wave generation units 25a and 25b continuously generate sound waves from the sound wave generation control unit 23 until receiving the sound wave generation stop instruction after receiving the sound wave generation start instruction.

  The frequency of the removal sound wave is not particularly limited, and is set based on, for example, the type of removal object. For example, in Patent Document 1 described above, the range of sound wave frequencies suitable for combating mosquitoes is about 6 kHz to 9 kHz, and the range of sound wave frequencies suitable for combating cats is about 18 kHz to 23 kHz. It has been shown that the range of sound wave frequencies suitable for exterminating mice is about 30 kHz to 50 kHz.

  Further, the number of types of removal targets is arbitrary. When a plurality of types of disinfection targets are assumed, for example, the frequency of the disinfecting sound wave may be set so as to include all frequencies suitable for disinfecting each disinfection target.

  Furthermore, when the extermination object is different depending on the season or time zone (for example, when animals appearing in summer and winter are different), the frequency of the extermination sound wave may be changed according to the change of the extermination object. .

  If possible, it is desirable to set the frequency of the extinct sound wave in an ultrasonic range (20 kHz or higher) that is difficult for humans to hear so as not to cause a noise problem.

  Moreover, although the position where the sound wave generators 25a and 25b are installed varies depending on the structure of the electric vehicle 1, it is difficult to see from around the electric vehicle 1 or inside the vehicle interior, for example, under the floor of the electric vehicle 1 or in the hood, and is removed. It is desirable to install it at a position where an extinct sound wave can be generated near the place where the object tends to stay. For example, the sound wave generator 25a is installed at a position where sound waves are generated under the floor of the electric vehicle 1, and the sound wave generator 25b emits sound waves toward a place where the removal target is likely to enter from outside, such as in a hood. Installed at the location where it occurs.

  Note that the number of the sound wave generators is arbitrary, and can be increased or decreased as necessary.

  Hereinafter, the sound wave generators 25a and 25b are simply referred to as the sound wave generator 25 when it is not necessary to distinguish them individually.

[1-2. Processing of sound wave generation control system 11]
Next, the sound wave generation control process executed by the sound wave generation control system 11 will be described with reference to the flowchart of FIG.

  In step S <b> 1, the sound wave generation control unit 23 determines whether or not the electric vehicle 1 has started based on the detection result by the start detection unit 21. The determination process of step S1 is periodically performed until it is determined that the electric vehicle 1 has been started. When it is determined that the electric vehicle 1 has been started, the process proceeds to step S2.

  In step S <b> 2, the sound wave generation control unit 23 starts the timer 24.

  In step S <b> 3, the sound wave generation unit 25 starts generating sound waves (disinfecting sound waves) under the control of the sound wave generation control unit 23.

  In step S4, it is determined whether a specified time has elapsed since the timer 24 was started. If it is determined that the specified time has not yet elapsed, the process proceeds to step S5.

  In step S <b> 5, the sound wave generation control unit 23 determines whether or not the electric vehicle 1 has started based on the detection result by the start detection unit 22. If it is determined that the electric vehicle 1 has not started, the process returns to step S4.

  Thereafter, the processes of steps S4 and S5 are repeatedly executed until it is determined in step S4 that the specified time has passed or until it is determined in step S5 that the electric vehicle 1 has started.

  On the other hand, if it is determined in step S4 that the specified time has elapsed or it is determined in step S5 that the electric vehicle 1 has started, the process proceeds to step S6.

  In step S <b> 6, the sound wave generator 25 stops the generation of sound waves (disinfecting sound waves) under the control of the sound wave generation controller 23.

  As described above, the disinfecting sound wave is continuously generated until the specified time elapses after the start of the electric vehicle 1 is detected or until the electric vehicle 1 starts. Therefore, the removal target under the floor of the electric vehicle 1 can be driven away before moving, and the removal target can be prevented from hitting or being hit by the electric vehicle 1.

  Note that this specified time is set to a time sufficient to drive away the object to be removed from the inside or around the electric vehicle 1.

In addition, after the electric vehicle 1 is started, it is not necessary to drive away the removal target, so that the generation of the removal sound wave is automatically stopped.
<2. Modification>
Hereinafter, modifications of the embodiment of the present invention will be described.

  In the above description, an example in which the present invention is applied to an electric vehicle has been shown. However, the present invention can be applied to all moving objects regardless of whether the present invention is electric. Therefore, of course, the present invention can also be applied to engine-driven vehicles other than electric vehicles. In addition, it is necessary to change the detection method of the starting of a moving body and the detection method of the start of a moving body according to the difference in the drive mechanism of a moving body.

  Further, for example, the processing of step S4 in FIG. 2 is omitted, and the sound wave is generated until the moving body starts or the moving body stops after the start of the moving body is detected. Also good.

  In this specification, the system means a set of a plurality of components (devices, modules (parts), etc.), and it does not matter whether all the components are in the same housing. Accordingly, a plurality of devices housed in separate housings and connected via a network and a single device housing a plurality of modules in one housing are all systems. .

  The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Electric vehicle 11 Sound wave generation control system 21 Start detection part 22 Start detection part 23 Sound wave generation control part 24 Timer 25a, 25b Sound wave generation part

Claims (5)

When starting of the moving body is detected, generation of sound waves including a predetermined frequency is started toward or around the moving body, and when generation of the moving body is detected, generation of the sound waves is stopped. A sound wave generation control device comprising a sound wave generation control unit. 2. The sound wave generation control device according to claim 1, wherein the sound wave generation control unit further stops the sound wave generation when a predetermined time has elapsed after the sound wave generation is started. A start detector for detecting start of the moving body;
The sound wave generation control device according to claim 1, further comprising: a start detection unit that detects start of the moving body. The start detection unit determines that the mobile body has started when the parking brake of the mobile body is released, or when the absolute value of the speed of the mobile body exceeds a predetermined threshold value. The sound wave generation control device according to claim 3. The sound wave generation control device according to claim 1, further comprising a sound wave generation unit that generates the sound wave.

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