JP2017138806A - Vehicle fall-down notification system and on-vehicle unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle fall-down notification system capable of notifying that a vehicle has fallen down while reducing an affection of an obstacle or noise.SOLUTION: A vehicle fall-down notification system 2 is provided that comprises: on-vehicle equipment 3 which is used on a bicycle 1 and which transmits in radio transmission, a fall-down signal for notifying that the bicycle 1 has fallen down; and notification equipment 4 for receiving the fall-down signal which is transmitted by the on-vehicle equipment 3 and notifying that the bicycle 1 has fallen down. The on-vehicle equipment 3 comprises: a fall-down detection section for detecting that the bicycle 1 has fallen down; a fall-down signal generation section for generating the fall-down signal based on detection of fall-down of the bicycle 1 by the fall-down detection section; and an on-vehicle equipment transmission section for transmitting in radio transmission, the fall-down signal generated by the fall-down signal generation section. The notification equipment 4 comprises: a notification equipment reception section for receiving the fall-down signal transmitted from the on-vehicle equipment 3; and a notification section for notifying that the bicycle 1 has fallen down based on reception of the fall-down signal by the notification equipment reception section.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a notification vehicle falling notification system and a vehicle-mounted device included in the system.

  Patent Document 1 discloses a technique for informing the surroundings when a vehicle falls and the user cannot immediately raise the vehicle. When the technique disclosed in Patent Document 1 determines that the state in which the vehicle is falling has continued for a certain time or more, the vehicle-mounted device notifies the surroundings that the vehicle cannot be raised using light or sound.

JP2013-144517A

  As described above, in the method disclosed in Patent Document 1, the vehicle-mounted device emits light or sound to notify the surroundings. However, when notifying with light, there is a high possibility that the light emitted from the vehicle-mounted device cannot be seen when the vehicle cannot be seen due to an obstacle or the like. In the case of notification by sound, there is a possibility that the sound generated by the vehicle-mounted device cannot be heard due to ambient noise or the like.

  The present invention has been made based on this situation, and the object of the present invention is to reduce the influence of obstacles, noise, etc., and to notify that the vehicle has fallen and a vehicle overturn notification system and in-vehicle device. Is to provide.

  The above object is achieved by a combination of the features described in the independent claims, and the subclaims define further advantageous embodiments of the invention. Reference numerals in parentheses described in the claims indicate a correspondence relationship with specific means described in the embodiments described later as one aspect, and do not limit the technical scope of the present invention. .

  The present invention for achieving the above object is used in the vehicle (1), and receives the fall signal transmitted by the on-board unit (3) and the on-board unit (3) that wirelessly transmits the fall signal notifying that the vehicle has fallen. A vehicle fall notification system (2) provided with a notification device (4) for notifying a vehicle fall, wherein the vehicle-mounted device detects a fall detection unit (S1) for detecting that the vehicle has fallen, and a fall detection unit. Includes a fall signal generation unit (S2) that generates a fall signal based on detecting the fall of the vehicle, and an onboard device transmission unit (33) that wirelessly transmits the fall signal generated by the onboard device control unit, The notification device includes a notification device reception unit (41) that receives a fall signal transmitted by the vehicle-mounted device, and a notification unit (43) that notifies that the vehicle has fallen based on the reception of the fall signal by the notification device reception unit. ).

  According to the above configuration, when the fall detection unit detects that the vehicle has fallen, the fall signal generation unit generates a fall signal. The generated fall signal is wirelessly transmitted by the in-vehicle device transmission unit. When the notification signal is received by the alarm receiver, the notification unit is activated to notify that the vehicle has fallen. Here, the fact that the vehicle has fallen is notified by the vehicle-mounted device wirelessly transmitting a fall signal. Therefore, it is possible to reduce the influence of obstacles and noise and to notify that the vehicle has fallen, compared to the case where the on-vehicle device is notified by emitting light or sound.

  Moreover, the invention which concerns on the onboard equipment for achieving the said objective is an invention which concerns on the onboard equipment with which the vehicle fall notification system of this invention is equipped. That is, the invention relating to the vehicle-mounted device for achieving the above object is the vehicle-mounted device (3) that is used in the vehicle (1) and wirelessly transmits a fall signal notifying that the vehicle has fallen. A fall detection unit (S1) that detects that the fall has occurred, a fall signal generation unit (S2) that generates a fall signal based on the fall detection unit detecting a fall of the vehicle, and a fall generated by the fall signal generation unit An in-vehicle device transmission unit (S6) that wirelessly transmits a signal.

It is a figure showing the utilization condition of the vehicle fall notification system 2 which concerns on 1st Embodiment of this invention. It is a figure showing the structure of the onboard equipment 3 which concerns on 1st Embodiment. It is a figure showing the structure of the alarm device 4 which concerns on 1st Embodiment. It is a flowchart which shows the action | operation of the onboard equipment control part 32 which concerns on 1st Embodiment. It is a flowchart which shows the action | operation of the alarm control part 42 which concerns on 1st Embodiment. It is a figure showing the utilization condition of the vehicle fall notification system 2a which concerns on 2nd Embodiment of this invention. It is a figure showing the alerting | reporting condition of the vehicle fall alerting | reporting system 2a which concerns on 2nd Embodiment. It is a figure showing the structure of the portable device 5 which concerns on 2nd Embodiment. It is a figure showing the structure of the onboard equipment 3a which concerns on 2nd Embodiment. It is a flowchart which shows the action | operation of the onboard equipment control part 32a which concerns on 2nd Embodiment. It is a flowchart which shows the action | operation of the alarm control part 42a which concerns on 2nd Embodiment.

<First Embodiment>
Hereinafter, a vehicle overturn notification system 2 as a first embodiment of the present invention will be described with reference to the drawings. The relationship between the vehicle-mounted device 3 mounted on the bicycle 1 and the alarm device 4 will be described with reference to FIG. The bicycle 1 corresponds to the vehicle recited in the claims.

  The vehicle-mounted device 3 is mounted on the bicycle 1 and is fixed to the lower side of the saddle in the present embodiment. When the on-vehicle device 3 detects that the bicycle 1 has fallen, the vehicle-mounted device 3 wirelessly transmits a fall signal indicating that the bicycle 1 has fallen. In addition, the fall signal contains the onboard equipment ID which identifies the onboard equipment 3, and can identify the onboard equipment 3 which transmitted the fall signal from the fall signal. The notification device 4 is held by, for example, a user who receives the notification, and when the fall signal transmitted from the vehicle-mounted device 3 is received, the notification device 4 notifies that the bicycle 1 has fallen.

  The structure of the onboard equipment 3 is demonstrated along FIG. The on-vehicle device 3 includes an acceleration sensor 31, an on-vehicle device control unit 32, and an on-vehicle device transmission unit 33.

  The acceleration sensor 31 sequentially measures a bicycle acceleration that is an acceleration applied to the bicycle 1. This bicycle acceleration corresponds to the vehicle acceleration in the claims. The acceleration sensor 31 is preferably capable of detecting acceleration in a direction orthogonal to the traveling direction of the bicycle 1.

  The in-vehicle device control unit 32 is configured mainly by a microcomputer including a CPU, a ROM, a RAM, and the like, and the CPU uses a temporary storage function of the RAM and a non-transitional tangible recording medium (non -transitory tangible storage medium) is executed, the process shown in FIG. 4 is executed to detect the fall of the bicycle 1 and generate a fall signal. When the CPU executes the program, a method corresponding to the program is executed. Note that some or all of the functions executed by the vehicle-mounted device control unit 32 may be configured in hardware by one or a plurality of ICs.

  The onboard equipment transmission unit 33 modulates and amplifies the fall signal generated by the onboard equipment control unit 32 and wirelessly transmits it. The frequency used for transmission is, for example, the 300 MHz band.

  The structure of the alarm device 4 is demonstrated along FIG. The notification device 4 includes a notification device reception unit 41, a notification device control unit 42, and a notification unit 43. The alarm receiver 41 receives and demodulates the fall signal transmitted by the vehicle-mounted device 3 and outputs it to the alarm controller 42.

  The alarm control unit 42 is configured mainly by a microcomputer including a CPU, a ROM, a RAM, and the like, and the CPU stores in a non-transitional tangible recording medium such as a ROM while using a temporary storage function of the RAM. The processing shown in FIG. 4 is executed by executing the program. When the CPU executes the program, a method corresponding to the program is executed. Note that some or all of the functions executed by the alarm control unit 42 may be configured in hardware by one or a plurality of ICs. The alarm control unit 42 includes a storage unit 44.

  The storage unit 44 stores the vehicle-mounted device ID of the vehicle-mounted device 3 that constitutes the same vehicle overturn notification system 2 as the alarm device 4. As will be described later, even if a fall signal is received, if the vehicle-mounted device ID included in the fall signal does not match the vehicle-mounted device ID stored in the storage unit 44, no notification is given. Therefore, it can be said that the vehicle-mounted device ID stored in the storage unit 44 is the vehicle-mounted device ID to be notified. The storage unit 44 may be the above-described ROM.

  The notification unit 43 operates in response to the notification signal output from the notification device control unit 42 and notifies the user of the notification device 4 that the bicycle 1 has fallen. The notification unit 43 may be a buzzer, a lamp, a vibrator, or the like.

  The operation of the vehicle-mounted device control unit 32 will be described along the flowchart of FIG. When the vehicle-mounted device 3 is turned on, the vehicle-mounted device control unit 32 executes the processing shown in FIG. 4 in order from step S1 (hereinafter, step is omitted).

  In S1, it is determined whether or not the bicycle 1 has fallen. In the present embodiment, it is determined that the bicycle 1 has fallen when the bicycle acceleration in the left-right direction of the bicycle is equal to or greater than a threshold value. That is, it is determined that the bicycle 1 has fallen on the basis of a change in bicycle acceleration due to an impact applied to the bicycle 1. If it is determined that the vehicle has fallen, the process proceeds to S2. If it is determined that the vehicle has not fallen, the process of S1 is performed again. This process corresponds to the fall detection unit in the claims.

  In S2, a fall signal for notifying that the bicycle 1 has fallen is generated. The fall signal is generated including the vehicle-mounted device ID that identifies the vehicle-mounted device 3. This process corresponds to the fall signal generation unit in the claims.

  In S6, the fall signal generated in S2 is output to the vehicle-mounted device transmission unit 33 to wirelessly transmit the fall signal, and the process shown in the flowchart of FIG. 4 ends.

  The operation of the alarm controller 42 will be described with reference to the flowchart of FIG. When the power of the alarm 4 is turned on, the alarm controller 42 executes the process shown in FIG. 5 in order from S11.

  In S11, it is determined whether or not a fall signal is input from the alarm receiver 41. If it is determined that a fall signal has been input, the process proceeds to S13. If it is determined that a fall signal has not been input, the process of S11 is performed again.

  In S13, the vehicle-mounted device ID stored in the storage unit 44 is acquired. In S14, it is determined whether or not the vehicle-mounted device ID included in the fall signal input from the notification device receiving unit 41 in S11 matches the vehicle-mounted device ID acquired from the storage unit 44 in S13. If it is determined that they match, the process proceeds to S15. If it is determined that they do not match, the process of S11 is performed again.

  In S15, the notification unit 43 is operated to notify that the bicycle 1 has fallen, and the process shown in the flowchart of FIG. 5 ends.

  As mentioned above, according to 1st Embodiment demonstrated, since the judgment of S1 will be YES when the bicycle 1 carrying the onboard equipment 3 falls, the process of S2 and S3 will be performed and the fall signal will be transmitted by radio | wireless, The notification device 4 notifies that the bicycle 1 has fallen based on the reception of the fall signal.

  Since the vehicle-mounted device 3 notifies the alarm device 4 that the bicycle 1 has fallen by wireless communication, the influence of surrounding obstacles is reduced compared to the case where the vehicle-mounted device 3 emits light and notifies the surroundings. Is possible. Moreover, since the vehicle-mounted device 3 mounted on the bicycle 1 emits a sound and notifies the surroundings, the notification is performed from the notification device 4 held by the user, so that the notification is performed near the user. become. Therefore, even if the notification is made by sound, the influence of noise can be reduced.

  Furthermore, in this embodiment, when the onboard equipment ID which identifies the onboard equipment 3 is memorize | stored in the memory | storage part 44, and the same onboard equipment ID as the onboard equipment ID memorize | stored in the memory | storage part 44 is contained in the fall signal Only notify. Therefore, notification is performed only when the bicycle 1 falls, and notification is not performed when another bicycle falls. This makes it possible to know that a specific bicycle such as a child's bicycle has fallen.

  In addition, since the fall detection is performed by measuring the impact caused by the fall with the acceleration sensor 31, the possibility of erroneously detecting the fall due to the inclination of the bicycle 1 can be reduced.

Second Embodiment
Next, a second embodiment will be described. In the following description of the second embodiment, elements having the same reference numerals as those used so far are the same as elements having the same reference numerals in the previous embodiments unless otherwise specified. Further, when only a part of the configuration is described, the above-described embodiment can be applied to the other parts of the configuration.

  A vehicle overturn notification system 2a as a second embodiment will be described with reference to FIG. The vehicle fall notification system 2a includes a portable device 5 in addition to the configuration of the vehicle fall notification system 2 in the first embodiment. The portable device 5 is provided in a baggage such as a bag and transmits a portable device acceleration, which is an acceleration applied to the portable device 5, to the vehicle-mounted device 3a as a portable device signal. When the luggage provided with the portable device 5 is moving together with the bicycle 1, the bicycle acceleration and the portable device acceleration change in the same manner.

  However, as shown in FIG. 7, when the bicycle 1 is caught and the baggage provided with the portable device 5 is taken away, and then the balance is lost due to the baggage being taken away and the bicycle 1 falls down, the shock caused by the fall is in-vehicle equipment. It is added to 3a but not to the portable device 5. As described above, when it is detected from the change in the bicycle acceleration and the acceleration of the portable device that the vehicle-mounted device 3 is impacted and is not applied to the portable device 5, the vehicle-mounted device 3a encounters snatching and the bicycle 1 falls. A theft signal notifying the effect is transmitted.

  The configuration of the portable device 5 will be described with reference to FIG. The portable device 5 includes a portable device acceleration sensor 51 and a portable device transmission unit 52.

  The portable device acceleration sensor 51 sequentially measures portable device acceleration, which is acceleration applied to the portable device 5, and outputs the measured portable device acceleration to the portable device transmission unit 52 as a portable device signal. The portable device transmission unit 52 modulates and amplifies the input portable device signal, and sequentially wirelessly transmits the signal to the in-vehicle device reception unit 34 illustrated in FIG.

  The configuration of the vehicle-mounted device 3a will be described with reference to FIG. The on-vehicle device 3a includes an on-vehicle device receiver 34 in addition to the configuration of the on-vehicle device 3a in the first embodiment.

  The on-vehicle device reception unit 34 receives and demodulates the portable device signal transmitted by the portable device 5 and outputs the demodulated signal to the on-vehicle device control unit 32a.

  The operation of the vehicle-mounted device control unit 32a will be described along the flowchart of FIG. In the second embodiment, when the vehicle-mounted device 3 is turned on, the vehicle-mounted device control unit 32a sequentially executes the process shown in FIG. 10 from S1 instead of the process shown in FIG.

  In S <b> 3, the mobile device acceleration is acquired from the mobile device signal input from the in-vehicle device receiver 34.

  In S4, based on the bicycle acceleration used in the determination in S1 and the mobile device acceleration acquired in S3, the change in the same level as the change in the bicycle acceleration when it is determined that the bicycle 1 has fallen is the mobile device acceleration. To determine whether or not In the present embodiment, when the mobile device acceleration is less than the threshold used in the determination of S1, it is determined that the same change does not occur in the mobile device acceleration. If it is determined that the same level of change has occurred, the process proceeds to S6. If it is determined that no change has occurred, the process proceeds to S5. That is, in the process of S <b> 4, it is determined whether the baggage provided with the portable device 5 falls with the bicycle 1 and the impact of the fall is also transmitted to the portable device 5. If the baggage falls after the baggage has been taken away, the impact of the rollover is not applied to the portable device 5, so that it can be determined that the device has been stolen, and the process proceeds to S5.

  In S5, a theft signal for notifying that the bicycle 1 has fallen due to snatching is added to the fall signal generated in S2. Since this process is performed, the onboard equipment control part 32a is equivalent to the theft signal addition part of a claim. In S6, the fall signal is wirelessly transmitted, and the process shown in the flowchart of FIG.

  The operation of the alarm controller 42a will be described with reference to FIG. In the second embodiment, when the alarm 4a is turned on, the alarm controller 42 executes the process shown in FIG. 11 in order from S11a instead of the process shown in FIG.

  S11a is a process for making a determination similar to S11 in FIG. 5, but if it is determined that a fall signal has been received, the process proceeds to S12 instead of S13.

  In S12, it is determined whether or not the theft signal received in S31 includes a theft signal. If it is determined that it is included, the process proceeds to S16, and if it is determined that it is not included, the process proceeds to S13.

  In S16, the notification unit 43 is activated to notify that the bicycle 1 has fallen over and snatched, and the processing shown in the flowchart of FIG. 11 is terminated. Note that the operating state of the notification unit 43 in this process is distinguished from the operating state in S15, which is a process when the bicycle 1 simply falls. For example, if the notification unit 43 is a lamp, it may be turned on for 10 seconds in the process of S15 and blinked for 10 seconds in the process of S16. This makes it possible to determine from the operation of the notification unit 43 whether the bicycle 1 has simply fallen or whether it has been snatched and fallen.

  As described above, according to the second embodiment described above, a fall signal is transmitted from the vehicle-mounted device 3 when the bicycle 1 falls as in the first embodiment, and a notification that the bicycle 1 has fallen is received when the alarm device receives the fall signal. To do.

  Furthermore, in this embodiment, when the baggage 1 provided with the portable device 5 is snatched and the bicycle 1 falls down, the baggage provided with the portable device 5 does not fall down together with the bicycle, and the shock caused by the bicycle 1 falling over. Is not transmitted to the portable device 5. Therefore, the determination in S4 is NO, the process in S5 is performed, and the theft signal is added to the fall signal. When the notification device 4a receives the fall signal to which the theft signal is added, the determination in S12 is YES. Therefore, the process of S16 is performed, and it is notified that the bicycle 1 has fallen due to snatching.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, The following modification is also contained in the technical scope of this invention, Furthermore, the summary other than the following is also included. Various modifications can be made without departing from the scope.

<Modification 1>
In 1st Embodiment, the onboard equipment control part 32 was going to judge whether the bicycle 1 fell down based on the bicycle acceleration which the acceleration sensor 31 measured changes with the impact of a fall. However, based on detecting the inclination of the bicycle 1 using an inclination sensor attached to the bicycle 1, it may be determined whether or not the bicycle 1 has fallen. For example, it may be determined that the bicycle 1 has fallen when the bicycle 1 has a certain inclination or more, such as when the inclination of the bicycle 1 is 45 degrees or more. Further, a combination of an acceleration sensor and a tilt sensor may be used to determine whether or not the vehicle has fallen based on a change in acceleration due to an impact and the tilt of the bicycle 1. For example, it may be determined that the bicycle 1 has fallen when the bicycle acceleration in the left-right direction is greater than or equal to a threshold value and the inclination of the bicycle 1 is greater than or equal to a certain value. As a result, it is possible to reduce the possibility that an impact other than an impact caused by a fall, such as an impact caused by a collision, is erroneously determined to fall.

<Modification 2>
In the first embodiment, the bicycle 1 is shown as the vehicle on which the vehicle-mounted device 3 is mounted. However, the vehicle on which the vehicle-mounted device 3 is mounted may be a single-seat vehicle other than the bicycle 1 such as a motor-driven bicycle or a senior car. The vehicle on which the vehicle-mounted device 3 is mounted may be a motorcycle such as a motorcycle.

<Modification 3>
In the first embodiment and the second embodiment, the alarm device 4 indicates that the bicycle 1 has fallen when the vehicle-mounted device ID included in the received fall signal matches the vehicle-mounted device ID stored in the storage unit 44. Information is going to be done. However, when the fall signal is received, it may be notified that the bicycle 1 has fallen without determining whether the vehicle-mounted device IDs match.

  Moreover, in 2nd Embodiment, when a theft signal is contained in the fall signal, it is judged whether the onboard equipment ID contained in the fall signal corresponds with the onboard equipment ID memorize | stored in the memory | storage part 44. FIG. It is assumed that the bicycle 1 is informed that the bicycle 1 has fallen. However, even if a theft signal is included, it is determined whether or not the vehicle-mounted device IDs match, and if the vehicle-mounted device IDs match, the bicycle 1 is informed that the bicycle 1 has fallen. It is good.

<Modification 4>
In the first embodiment, the 300 MHz band is used as the frequency band for transmitting the fall signal. However, other frequency bands such as the 2.4 GHz band and the 5 GHz band may be used.

DESCRIPTION OF SYMBOLS 1: Bicycle 2: Vehicle fall notification system 3: Vehicle-mounted device 4: Alarm device 5: Portable device 31: Acceleration sensor 32: Vehicle-mounted device control unit 33: Vehicle-mounted device transmission unit 34: Vehicle-mounted device reception unit 41: Alarm device reception unit 42 : Alarm control unit 43: Notification unit 44: Storage unit 51: Mobile device acceleration sensor 52: Mobile device transmission unit

Claims (6)

An in-vehicle device (3) used in the vehicle (1) for wirelessly transmitting a fall signal for notifying that the vehicle has fallen;
A vehicle fall notification system (2) comprising an alarm (4) for receiving the fall signal and notifying the vehicle to fall,
The in-vehicle device is
A fall detection unit (S1) for detecting that the vehicle has fallen;
A fall signal generation unit (S2) for generating the fall signal based on the fall detection unit detecting the fall of the vehicle;
An in-vehicle device transmission unit (33) for wirelessly transmitting the fall signal generated by the fall signal generation unit;
The alarm is
An alarm receiver (41) for receiving the fall signal transmitted by the vehicle-mounted device;
A vehicle fall notification system comprising a notification unit (43) for notifying that the vehicle has fallen based on reception of the fall signal by the notification receiver. In claim 1,
The fall signal generation unit generates an onboard device ID that identifies the onboard device in the fall signal,
The alarm device includes a storage unit that stores the vehicle-mounted device ID to be notified,
In addition to the notification device receiving unit receiving the fall signal, the notification unit may be configured such that the vehicle-mounted device ID included in the received fall signal matches the vehicle-mounted device ID stored in the storage unit. And a vehicle fall notification system for notifying that the vehicle has fallen. In claim 1 or 2,
The fall detection unit is a vehicle fall notification system that detects that the vehicle has fallen based on a change in vehicle acceleration, which is an acceleration applied to the vehicle, according to an impact. In claim 3,
The fall detection unit is a vehicle fall notification system that detects that the vehicle has fallen based on a change in the vehicle acceleration according to the impact and an inclination of the vehicle. In claim 3 or 4,
The vehicle overturn notification system includes a portable device (5) having a wireless communication function,
The portable device is
A portable device acceleration sensor (51) for sequentially measuring a portable device acceleration which is an acceleration applied to the portable device;
A portable device transmitter (52) for sequentially wirelessly transmitting portable device signals including the portable device acceleration,
The in-vehicle device is
An in-vehicle device receiver (34) for receiving the portable device signal;
Based on the fact that the mobile device acceleration included in the mobile device signal received by the in-vehicle device receiver does not change according to the impact, a theft signal notifying that a theft has occurred is added to the fall signal A theft signal adding unit (32a) for
The vehicle notifying system for notifying that the vehicle has fallen with theft, based on the fact that the theft signal received by the alarm receiver includes the theft signal. An on-vehicle device (3) used in the vehicle (1) for wirelessly transmitting a fall signal notifying that the vehicle has fallen,
A fall detection unit (S1) for detecting that the vehicle has fallen;
A fall signal generation unit (S2) for generating the fall signal based on the fall detection unit detecting the fall of the vehicle;
An on-vehicle device comprising: an on-vehicle device transmission unit (33) for wirelessly transmitting the overturn signal generated by the overturn signal generation unit.

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