JP2017138830A - Vehicle start notification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a portable terminal from being continuously used without being conscious of that a vehicle ahead of own vehicle starts or a traffic signal changes.SOLUTION: A vehicle start notification notice 100 having a vehicle speed detection part C1 and an inter-vehicle distance detection part C2 for detecting the presence or absence of a target for preventing a forward movement of a vehicle includes: a speed information acquisition part 10 for acquiring speed information from the speed detection part; a target information acquisition part 20 for acquiring prevention target information from a target detection part; a communication part 30 for performing a short-distance radio communication with a portable terminal F; a determination part 40 for determining a state of a portable terminal; and a notification part 50 for performing a notification to a portable terminal. When the speed information acquired by the vehicle speed information acquisition part shows a stop state and the prevention target information acquired by the target information acquisition part shows a forward movement prevention target presence state, the prevention target information acquired by the target information acquisition part shows the forward movement prevention target absence state, and when the determination part determines that the portable terminal is notifiable, the notification part notifies that the forward prevention target is not present in the portable terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle start notification device for notifying that a vehicle can be started, and more particularly to a vehicle start notification device for notifying that a vehicle can be started via a portable terminal.

  Conventionally, the vehicle in front of the vehicle has started in contrast to the fact that it may not be noticed even if the signal changes or the vehicle in front of the vehicle starts when the vehicle is driving, concentrating on things other than traffic jams or waiting for signals. An apparatus for notifying a driver of such a situation is known.

  For example, Patent Literature 1 discloses an inter-vehicle distance warning device that recognizes that the vehicle is moving away from a preceding vehicle when traveling is resumed from a traffic jam stop state and informs the driver. This inter-vehicle distance warning device is a reflected wave that is reflected by transmitting an ultrasonic wave from a transmitter toward the preceding vehicle when the preceding vehicle stops due to traffic jams, red lights, etc., and then stops following the preceding vehicle. The distance from the preceding vehicle is monitored. Then, the inter-vehicle distance warning device captures that the vehicle is moving away from the preceding vehicle and notifies the driver.

  Further, Patent Document 2 discloses a CRT display device for a vehicle in order to cope with the fact that the signal changes from red to blue while the vehicle is stopped, or when the vehicle is not aware that the front vehicle has started in a traffic jam. This CRT display device detects that the vehicle is in a stopped state, and displays a mark on the screen of the CRT display device when it detects that there is another vehicle in front of the vehicle. The CRT display device displays an alarm for blinking the mark when no other vehicle is detected while the mark is displayed on the screen of the CRT display device.

  Further, Patent Document 3 discloses a vehicle distance alarm device that can prevent the driver from feeling uncomfortable even when the vehicle distance alarm is activated based on communication using a mobile phone. This inter-vehicle distance warning device notifies the driver of the relationship when the relative positional relationship between the host vehicle and the preceding vehicle becomes a predetermined relationship. The communication state of the communication device in the vehicle is detected, and the notification start timing is advanced as the time elapses from the communication start of the communication device.

JP 2000-338240 A Japanese Utility Model Laid-Open No. 02-024749 JP 2004-220139 A

  In view of the increasing number of users operating mobile terminals such as smartphones when a vehicle is temporarily stopped, such as when a signal is stopped or a traffic jam occurs, the vehicle in front of the vehicle starts or the signal changes. In order to prevent the user from continuing to use the mobile terminal without noticing it, a vehicle start notification device is provided that notifies the user that the start of the vehicle is possible via the mobile terminal.

In order to solve the above-described problem, in a vehicle having a vehicle speed detection unit that detects a vehicle speed and a target detection unit that detects the presence or absence of a target that prevents the vehicle from moving forward in the forward direction of the vehicle, vehicle speed information is obtained from the vehicle speed detection unit. A vehicle speed information acquisition unit to be acquired, a target information acquisition unit that acquires blocking target information from the target detection unit, a communication unit that performs short-range wireless communication with the mobile terminal, and a determination that determines the state of the mobile terminal via the communication unit And a notification unit that notifies the mobile terminal via the communication unit based on the determination of the determination unit, the vehicle speed information acquired by the vehicle speed information acquisition unit indicates a stop state, and the target information acquisition unit is When the acquired blocking target information indicates a forward blocking target presence state, the blocking target information acquired by the target information acquisition unit indicates a forward blocking target non-state, and the determination unit determines that the mobile terminal can be notified. If Knowledge unit, vehicle start notification device for notifying the forward blocking object has disappeared in a mobile terminal is provided.
According to this, even if the vehicle ahead starts or the signal changes, the user can start the vehicle via the mobile terminal in order to prevent the mobile terminal from being used without being aware of it. It is possible to provide a vehicle start notification device that notifies the vehicle.

Furthermore, the object detection unit is an inter-vehicle distance detection unit that detects an inter-vehicle distance from the vehicle ahead of the vehicle, and the forward-blocking target presence state acquired by the target information acquisition unit is that the inter-vehicle distance from the preceding vehicle is less than a predetermined distance The state where the target information acquisition unit acquires no forward blocking target may be characterized in that the inter-vehicle distance from the preceding vehicle is a predetermined distance or more.
According to this, when the inter-vehicle distance with the vehicle becomes a predetermined distance or more, it is possible to notify the user that the vehicle can be started via the portable terminal.

  As described above, according to the present invention, in order to prevent the use of the mobile terminal without being noticed even when the vehicle ahead or the signal changes, it is possible to start the vehicle via the mobile terminal. Therefore, it is possible to provide a vehicle start notification device that notifies the user that it has become possible.

1 is a block diagram of a vehicle start notification device according to a first embodiment of the present invention. The detailed block diagram of the vehicle start notification apparatus of 1st Example which concerns on this invention. The flowchart of the control method in the vehicle start notification apparatus of 1st Example which concerns on this invention. The flowchart of the control method in the vehicle start notification apparatus of the modification of 1st Example which concerns on this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Example>
With reference to FIGS. 1-2, the vehicle start notification apparatus 100 in a present Example is demonstrated. The vehicle start notification device 100 is provided in a vehicle C that communicates with the mobile terminal F. The vehicle C includes a vehicle speed detection unit C1 that detects the speed (vehicle speed) of the vehicle C, and a target detection unit C2 that detects the presence or absence of a target that prevents the vehicle C from moving forward in the forward direction of the vehicle C. The vehicle speed detection unit C1 periodically detects the number of rotations of the tire with a sensor, and the latest vehicle speed is obtained by the CPU through the vehicle speed recognition circuit. The vehicle speed detection unit C1 may be based on any known vehicle speed detection method.

  The object detection unit C2 includes both or one of an inter-vehicle distance detection unit C21 that detects the inter-vehicle distance between the vehicle C and the vehicle ahead and a front signal detection unit C22 that detects the state of the front signal. The inter-vehicle distance detection unit C21 periodically detects the front vehicle with a sensor such as a laser radar or a vehicle-mounted camera, and the latest inter-vehicle distance is obtained by the CPU through a front recognition circuit that recognizes the distance from the front vehicle. The inter-vehicle distance detection unit C21 may be based on any known inter-vehicle distance detection method. The inter-vehicle distance is information on whether or not the vehicle C can move forward, and the fact that the inter-vehicle distance with the preceding vehicle is less than the predetermined distance is a forward-preventing target presence state, and the inter-vehicle distance with the preceding vehicle is predetermined. Beyond the distance is a state where there is no forward blocking object.

  The front signal detection unit C22 periodically detects the presence and state of a front signal with a sensor such as an in-vehicle camera, and updates the current state of the CPU through a front recognition circuit that recognizes which of the red, yellow, and blue signals the front signal is. The signal state is determined. The forward signal detection unit C22 may be based on any known signal detection method. The state of the signal is information to be blocked whether or not the vehicle C can move forward. A yellow-red signal state is a forward-blocking target presence state, and a green signal state is a forward-blocking target absence. State.

  The portable terminal F is received by the portable terminal communication unit F1 that performs near field communication with the vehicle C, the portable terminal display unit F2 that can display to the user of the portable terminal F, and the portable terminal communication unit F1. A portable terminal control unit F3 that performs control to display a notification or the like on the portable terminal display unit F2. The mobile terminal communication unit F1 can perform communication between devices separated by several meters to several tens of meters, and performs communication in accordance with standards for in-vehicle LAN and Bluetooth (registered trademark). In addition, the portable terminal F registers beforehand according to a communication standard so that it can communicate with the vehicle C.

  The portable terminal display unit F2 displays visual information such as characters and figures using liquid crystal, organic EL, or the like. The portable terminal control unit F3 is a CPU that controls them. The portable terminal F is typically a smartphone that is connected to the Internet via a telephone line or a wireless LAN, and allows a user to easily view an email or browse a home page. Therefore, the user may use the portable terminal F by using the time when waiting for traffic lights or traffic jams.

  The vehicle start notification device 100 includes a vehicle speed information acquisition unit 10 that acquires vehicle speed information from the vehicle speed detection unit C1, and a target information acquisition unit 20 that acquires blocking target information (information on the distance between vehicles and signal status) from the target detection unit C2. With. The vehicle start notification device 100 further includes a communication unit 30 that performs short-range wireless communication with the mobile terminal F, a determination unit 40 that determines the state of the mobile terminal F via the communication unit 30, and a mobile unit that is portable via the communication unit 30. The notification part 50 which notifies to the terminal F is provided, and the control part 60 which controls these whole is provided.

  Based on an instruction from the control unit 60, the vehicle speed information acquisition unit 10 acquires the latest speed of the vehicle C detected by the vehicle speed detection unit C1 via a vehicle communication circuit (for example, CAN, Controller Area Network). The target information acquisition unit 20 acquires the latest inter-vehicle distance from the preceding vehicle and the latest state of the front signal detected by the target detection unit C2 via the vehicle communication circuit based on an instruction from the control unit 60. The communication unit 30 performs short-range wireless communication in accordance with the above-described standard capable of communicating with the mobile terminal communication unit F1, and acquires the state of the mobile terminal F when communicating with the mobile terminal communication unit F1. The state of the portable terminal F is that the screen display function such as pop-up of the portable terminal F is on or off when communication is possible, and the communication function or power supply of the portable terminal F is off when communication is not possible. .

  The determination unit 40 determines whether the notification unit 50 can notify the mobile terminal F based on the state of the mobile terminal F acquired by the communication unit 30. The determination unit 40 determines that notification is possible when the state of the mobile terminal F is a screen display function such as pop-up, and the screen display function such as pop-up is off or the communication function or power of the mobile terminal F is off. If it is in a state, it is determined that notification is impossible. The notification unit 50 notifies the mobile terminal F based on the determination of the determination unit 40.

  A control method of the vehicle start notification device 100 will be described with reference to FIG. In addition, the flowchart of this figure is description in case the object detection part C2 is the inter-vehicle distance detection part C21. S in the flowchart means a step. In S100, the control unit 60 of the vehicle start notification device 100 instructs the vehicle speed information acquisition unit 10 to acquire the latest vehicle speed detected by the vehicle speed detection unit C1, and inspects the vehicle speed of the vehicle C. If there is a vehicle speed, the step of S100 is repeated so as to monitor until the vehicle speed runs out.

  When the vehicle speed becomes zero, the control unit 60 instructs the target information acquisition unit 20 to acquire the latest inter-vehicle distance detected by the inter-vehicle distance detection unit C21 in S102, and the vehicle ahead is a predetermined vehicle. Inspect whether the distance is less than the inter-vehicle distance. That is, when the vehicle C changes from a moving state to a stopped state, the control unit 60 checks whether or not the preceding vehicle is less than a predetermined inter-vehicle distance. The predetermined inter-vehicle distance refers to a normal distance from the vehicle ahead when stopping due to traffic lights or traffic jams. If the preceding vehicle is not less than the predetermined inter-vehicle distance, it cannot be said that there is an object to prevent forward movement, and the vehicle C still has room to move forward. Therefore, the process returns to S100 and the vehicle speed is monitored.

  When it is less than the predetermined inter-vehicle distance, the control unit 60 attempts to receive the state of the mobile terminal F via the communication unit 30 in S104. In S200, the portable terminal F periodically checks whether or not the portable terminal F can be notified from the vehicle start notification device 100. The case where notification is possible means that the screen display function such as pop-up of the portable terminal F is in an on state, and the case where notification is impossible means that the screen display function is in an off state. If notification is possible, the portable terminal F transmits a notification that notification is possible to the communication unit 30 of the vehicle start notification device 100 in S202. If notification is impossible, the portable terminal F transmits a notification that notification is impossible to the communication unit 30 of the vehicle start notification device 100 in S204. Thereafter, the portable terminal F continues to check whether or not the notification from the vehicle start notification device 100 is received in S206.

  When the control unit 60 receives the state of the mobile terminal F via the communication unit 30 in S104, the determination unit 40 checks whether or not the mobile terminal F is in a state that can be notified in S106. If the notification is not possible or if the reception from the portable terminal F has been waited but has not been received within a predetermined time, the control unit 60 returns to S100 and performs the vehicle speed inspection. If the notification is possible, the control unit 60 instructs the target information acquisition unit 20 again to acquire the latest inter-vehicle distance detected by the inter-vehicle distance detection unit C21 in S108, and the vehicle ahead is predetermined. It is inspected whether it is more than the distance between cars. If the distance is equal to or greater than the predetermined inter-vehicle distance, the notification unit 50 notifies the mobile terminal F that the vehicle ahead has started and there is no longer an object to block forward in S110.

  When the mobile terminal control unit F3 of the mobile terminal F receives a notification that the preceding vehicle has started from the vehicle start notification device 100 in S206 and that there is no longer an object to block forward, in S208, the mobile terminal display unit F2 A message is displayed indicating that the vehicle ahead has started and there is no longer any object to block forward.

  As described above, when the vehicle speed information acquired by the vehicle speed information acquisition unit 10 indicates a stop state and the inter-vehicle distance acquired by the target information acquisition unit 20 is less than the predetermined inter-vehicle distance, the target information acquisition unit 20 is again obtained. When the inter-vehicle distance acquired is equal to or greater than the predetermined inter-vehicle distance and the determination unit 40 determines that the mobile terminal F can be notified, the notification unit 50 starts the front vehicle on the mobile terminal F and prevents forward travel. Notify that the subject is gone. In addition, when the vehicle speed information acquired by the vehicle speed information acquisition unit 10 indicates a stop state, and the inter-vehicle distance acquired by the target information acquisition unit 20 is less than a predetermined inter-vehicle distance, the vehicle C is once a normal inter-vehicle distance. This is the case where the car stops after a while.

  In this case, when the determination unit 40 determines that the mobile terminal F can be notified and the latest inter-vehicle distance acquired by the target information acquisition unit 20 is equal to or greater than a predetermined inter-vehicle distance, the notification unit 50 The portable vehicle F is notified that the preceding vehicle has started and that there is no longer any object to prevent the vehicle from moving forward. According to this, even if the vehicle ahead starts, the user is notified that the vehicle C can be started via the mobile terminal F in order to prevent the mobile terminal F from being used without noticing it. The vehicle start notification device 100 can be provided.

  When the object detection unit C2 is the front signal detection unit C22 and the object to be prevented from moving forward is a signal, in order to prevent the mobile terminal F from being used without being noticed even when the signal is switched from red to blue. The user is notified that the vehicle C can be started via the portable terminal F. Thus, when the user pauses during driving and uses the mobile terminal F, the mobile terminal F is notified that there is no longer any object to prevent forward movement, so that the vehicle C can start quickly. As a result, the traffic congestion is alleviated, and the stress of the driver of the vehicle C and the driver of the vehicle thereafter is reduced.

<Modification of the first embodiment>
With reference to FIG. 4, the control method of the vehicle start notification apparatus 100 in this modification is demonstrated. In addition, the flowchart of this figure is description in case the object detection part C2 is the inter-vehicle distance detection part C21. In S300, the control unit 60 instructs the vehicle speed information acquisition unit 10 to acquire the latest vehicle speed detected by the vehicle speed detection unit C1, and inspects the vehicle speed of the vehicle C. If there is a vehicle speed, the step of S300 is repeated so as to monitor until the vehicle speed runs out.

  When the vehicle speed becomes zero, the control unit 60 instructs the target information acquisition unit 20 to acquire the latest inter-vehicle distance detected by the inter-vehicle distance detection unit C21 in S302, and the vehicle ahead is a predetermined vehicle. Inspect whether the distance is less than the inter-vehicle distance. That is, when the vehicle C changes from a moving state to a stopped state, the control unit 60 checks whether or not the preceding vehicle is less than a predetermined inter-vehicle distance. If the preceding vehicle is not less than the predetermined inter-vehicle distance, it cannot be said that there is an object to prevent forward movement, and the vehicle C still has room to move forward. Therefore, the process returns to S300 and the vehicle speed is monitored.

  When the preceding vehicle is less than the predetermined inter-vehicle distance, the control unit 60 instructs the target information acquisition unit 20 to acquire the latest inter-vehicle distance detected by the inter-vehicle distance detection unit C21 again in S304, It is inspected whether the preceding vehicle is not less than a predetermined inter-vehicle distance. If the distance is equal to or greater than the predetermined inter-vehicle distance, the notification unit 50 notifies the mobile terminal F that the vehicle ahead has started and there is no longer an object to block forward in S306.

  The portable terminal control unit F3 of the portable terminal F checks whether or not a notification is possible in S400. If the notification is in a notificationable state, in S402, a target to prevent advance from the vehicle start notification device 100 is detected. Receive notification that it is gone. When the mobile terminal F receives a notification that the preceding vehicle has started from the vehicle start notification device 100 in S402 and that there is no longer an object to block forward, the mobile vehicle starts on the mobile terminal display unit F2 in S404. And the fact that there is no longer any object to block forward is displayed. In this case, the notification can be performed without waiting for the determination of the determination unit 40 regardless of whether the notification from the portable terminal F is possible or not, and thus simple and quick control is possible.

  In addition, this invention is not limited to the illustrated Example, The implementation by the structure of the range which does not deviate from the content described in each item of a claim is possible. That is, although the present invention has been particularly illustrated and described with respect to particular embodiments, it should be understood that the present invention has been described in terms of quantity, quantity, and amount without departing from the scope and spirit of the present invention. In other detailed configurations, various modifications can be made by those skilled in the art.

DESCRIPTION OF SYMBOLS 100 Vehicle start notification apparatus 10 Vehicle speed information acquisition part 20 Target information acquisition part 30 Communication part 40 Determination part 50 Notification part 60 Control part C Vehicle C1 Vehicle speed detection part C2 Target detection part C21 Inter-vehicle distance detection part C22 Forward signal detection part F Portable terminal F1 mobile terminal communication unit F2 mobile terminal display unit F3 mobile terminal control unit

Claims (2)

In a vehicle having a vehicle speed detection unit that detects a vehicle speed, and a target detection unit that detects the presence or absence of a target that prevents the vehicle from moving forward in the forward direction of the vehicle,
A vehicle speed information acquisition unit for acquiring vehicle speed information from the vehicle speed detection unit;
A target information acquisition unit for acquiring blocking target information from the target detection unit;
A communication unit for short-range wireless communication with a mobile terminal;
A determination unit for determining the state of the mobile terminal via the communication unit;
Based on the determination by the determination unit, a notification unit that notifies the mobile terminal via the communication unit;
With
When the vehicle speed information acquired by the vehicle speed information acquisition unit indicates a stop state, and the blocking target information acquired by the target information acquisition unit indicates a forward blocking target presence state, the target information acquisition unit acquires When the blocking target information indicates no advance blocking target state and the determination unit determines that the mobile terminal can be notified, the notification unit notifies the mobile terminal that there is no forward blocking target.
Vehicle start notification device. The target detection unit is an inter-vehicle distance detection unit that detects an inter-vehicle distance with a vehicle ahead of the vehicle,
The forward-prevention target presence state acquired by the target information acquisition unit means that the inter-vehicle distance with the preceding vehicle is less than a predetermined distance, and the forward-prevention target no state acquired by the target information acquisition unit means that the forward vehicle and The vehicle start notification device according to claim 1, wherein an inter-vehicle distance is a predetermined distance or more.

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