JP3850892B2 - Moving body detection device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an apparatus that detects and displays the presence of another moving body mounted on a vehicle within a predetermined distance.
[0002]
[Prior art]
Conventionally, for example, as shown in Japanese Utility Model Publication No. 59-45700, a transmitter that can transmit a signal within an area of one of a moving body such as a pedestrian and a vehicle and the other receives a specific signal. There has been known a traffic accident prevention apparatus that includes a receiver that can be used, and allows the receiving side to know the presence of the transmitting side by an alarm when both of them approach within a predetermined distance.
[0003]
[Problems to be solved]
However, in this example, the receiving side that has received the transmission signal can only know the existence of the transmitting side by means of an alarm, and the transmitting side checks whether the other party (receiving side) has recognized the existence of itself. It is not possible.
For this reason, the transmitting side approaches without confirming whether or not the other party has recognized.
[0004]
The present invention has been made in view of such a point, and when a signal transmitted by another moving body is received, the present invention informs the occupant of the existence of the moving body and also provides a transmission side to the moving body. Thus, a mobile object detection device capable of confirming reception is provided.
[0005]
[Means and Actions for Solving the Problems]
In order to achieve the above object, the present invention provides a mobile body detection device that detects a mobile body by receiving a signal transmitted from another mobile body that is mounted on a vehicle and is present in the surroundings. Discriminating means for discriminating whether the value is exceeded and detecting a moving body, driving state detecting means for detecting an operating state corresponding to at least the vehicle speed or the operating state of the blinker, brake and shift position, and detecting the moving body Vehicle interior display means for displaying to the occupant when the vehicle is detected, vehicle exterior display means for visual display to the outside when a moving body is detected, and the vehicle interior according to the driving state detected by the driving state detection means. The moving body detection apparatus includes a display unit and a display state changing unit that changes a display state of the outside display unit .
[0006]
In the case of simple display, it means that visual display that is sensed by visual sense as well as auditory display that is sensed by auditory sense, and changes in display status are displayed even when display is changed or not displayed. It means various changes, such as a change that changes the form / intensity, a change that combines visual display and auditory display, and changes its operating state.
[0007]
The visual display on the outside display means informs the mobile body that the vehicle on the receiving side has detected the presence of the mobile body on the transmission side, and other mobile bodies existing in the vicinity know the presence of the mobile body by this display. be able to.
[0008]
【Example】
An embodiment of the present invention shown in FIGS. 1 to 4 will be described below.
FIG. 1 is a partially transparent external view of a four-wheeled vehicle 1 equipped with a moving body detection device 10 of this embodiment.
Inside the instrument panel 2 in front of the front seat of the four-wheeled automobile 1, an alarm operation control device 11 and a receiver 12 constituting the moving body detection device 10 are arranged. An indicator lamp 13 and an alarm buzzer 14 are attached.
[0009]
An antenna 15 protrudes obliquely upward along the front pillar 3, and a vehicle exterior display lamp 16 is mounted on the left and right curved portions of the front bumper 4 at the front end of the vehicle body.
A schematic block diagram of a control system of the moving object detection apparatus 10 will be described with reference to FIG.
[0010]
A signal received by the antenna 15 is converted into a predetermined signal via the receiver 12 and input to the reception intensity comparator 20, and a signal equal to or higher than a set value is output to the alarm operation control device 11.
The alarm operation control device 11 is a display state changing means that outputs an instruction signal to the buzzer driving device 21 to drive and control the alarm buzzer 14, and outputs an instruction signal to the lamp driving device 22 to output the in-vehicle display lamp 13 Is a computer control device that controls the lighting or blinking of the lamp, and similarly outputs an instruction signal to the lamp driving device 23 to control the lighting or blinking of the outside display lamp 16, and inputs and processes signals indicating various driving states. The alarm buzzer 14, the vehicle interior display lamp 13, and the vehicle exterior display lamp 16 are controlled.
[0011]
The signal indicating the driving state includes a signal based on the vehicle speed detected by the vehicle speed sensor 25, a signal based on the on / off state of the winker switch 27, a signal based on the on / off state of the brake switch 29, a parking signal of the shift position switches 31 and 32, and neutral Signal, on / off signal of the side brake switch 33, and the like.
Each vehicle speed sensor 25, blinker switch 27, brake switch 29, shift position switches 31, 32, and side brake switch 33 are operating state detection means.
[0012]
A vehicle speed signal from the vehicle speed sensor 25 is compared with a predetermined vehicle speed (40 km / h in the present embodiment) via a vehicle speed comparator 26, and a signal indicating the result of comparison, that is, a signal indicating whether the vehicle speed is equal to or lower than the predetermined speed is an alarm operation control device 11. Is output.
The on / off signal of the winker switch 27 is output to the alarm operation control device 11 as it is, and the alarm operation control device also serves as a signal for determining whether or not 3 seconds have passed since the on signal is changed to the off signal via the winker timer 28. Is output to 11.
[0013]
Furthermore, the on / off signal of the brake switch 29 is output to the alarm operation control device 11 as it is, and is also turned on via the brake timer 30 to determine whether it has continued for 2 seconds and an off signal for 3 seconds. It is output to the alarm operation control device 11 as a signal for determining whether or not the operation is continued.
[0014]
The operation procedure of alarm control performed by the alarm operation control device 5 based on the signal indicating the above operation state will be described below according to the flowchart of FIG.
First, in step 1, alarm radio waves are captured. In next step 2, it is determined whether or not the received signal is a signal having an electric field strength equal to or higher than a set value. If it does not exceed the set value, the moving object is in the alarm area. It is determined that there is no noise or that noise has been received, and this routine is exited, and steps 1 and 2 are repeated to always enter a reception standby state.
Note that various vehicles, pedestrians, and the like are conceivable as mobile bodies that transmit alarm radio waves.
[0015]
If the alarm radio wave shows an electric field strength exceeding the set value due to the approach of the moving body, the process proceeds from step 2 to step 3 to capture information on the driving state of the vehicle.
That is, signals indicating the various operating states are input.
In the next step 4, the operating state is analyzed based on the signal, and the value of the alarm flag W for designating the display state is determined.
The details of step 4 are shown in FIG. 4 as an operating state analysis subroutine, which will be described later.
[0016]
The alarm flag W is a value of “0” or “1”. In the next step 5, it is determined whether or not “1” is set. If the alarm flag W = 1, step 6 Then, the in-vehicle display lamp 13 flashes, and the in-vehicle display lamp 16 also flashes (step 7), and the alarm buzzer 14 is driven to issue an alarm (step 8).
On the other hand, if the warning flag W = 0, the process proceeds from step 5 to step 9 and the in-vehicle display lamp 13 is turned on, and the outside display lamp 16 is also turned on (step 10), and no alarm is issued.
That is, if the alarm flag W is “0”, no alarm is issued, but if “1” is set, an alarm is issued.
[0017]
However, regardless of the value of the warning flag W, whether the moving body is detected by receiving the warning radio wave transmitted on the mobile body side is indicated outside the vehicle provided on the front bumper 4 of the automobile 4. This can be confirmed by the blinking or lighting of the lamp 16.
[0018]
In addition to moving bodies that have transmitted alarm radio waves, there are also mobile bodies that have transmitted alarm radio waves around the four-wheeled vehicle 1 by blinking or lighting of the outside display lamp 16 of the four-wheeled vehicle 1. It is possible to know even if the user does not enter the field of view and cannot be confirmed with the eyes.
In addition, since the mobile unit confirms reception by flashing or lighting the outside indicator lamp 16 instead of a warning by sound, it is possible to identify which vehicle has received, and it does not bother surrounding mobile units and causes noise. Don't be.
[0019]
Next, the operation state analysis in step 4 of the flowchart will be described based on the subroutine of FIG.
First, at step 21, it is determined from the signal of the vehicle speed comparator 8 whether or not the vehicle speed V is 40 km / h or less. If it exceeds 40 km / h, the jump alarm flag W is set to "0" at step 34 and 40 km / h. At the following vehicle speed, the routine proceeds to step 22 where an alarm is possible.
That is, when traveling at a speed exceeding 40 km / h, it is a case where the vehicle is traveling at a high speed and the necessity for alarming is low. In such a case, the alarm flag W is set to 0 so that no alarm is issued.
[0020]
When the process proceeds to step 22 and the alarm is enabled, it is determined whether or not the winker switch 27 is in the on state. If the winker switch 27 is in the on state, the process jumps to step 30 and normally proceeds to step 33 to set “1” to the alarm flag W. If it is in the off state, the process proceeds to step 23, and it is determined from the signal from the blinker timer 28 whether or not it is within 3 seconds after the change to the off state.
If it is within 3 seconds after switching from ON to OFF, the routine jumps to step 30 and proceeds normally to step 33, and continues to alarm flag W = 1. If 3 seconds are exceeded, it proceeds to step 24 and depending on the brake state, alarm flag W = 0.
[0021]
That is, when the turn signal switch 27 is turned on in order to turn left or right, the alarm flag W = 1, and even if the vehicle turns completely, the winker lever returns and the winker switch 27 is turned off, the alarm flag W = 1. Control as it is.
Turn the blinker switch 27 to turn left or right and turn it for about 3 seconds, so it is necessary to pay close attention to the approach of a motorcycle, etc. When there is a moving object nearby, the warning flag W = An alarm is issued as 1.
[0022]
If the blinker switch 27 is in the off state and is not within 3 seconds after changing to the off state, the process proceeds from step 23 to step 24 to determine whether or not the brake switch 29 is in the on state. Goes to step 25 to determine whether it is on for more than 2 seconds, and if it is not on for more than 2 seconds, it is a case where the vehicle speed is reduced by stepping on the brake temporarily during steady running. The advance warning flag W is set to “0” and no warning is issued.
If the brake switch 29 is on for more than 2 seconds, the routine proceeds to step 26 where the flag F is set to "1", the process proceeds to step 30 and step 33, and the warning flag W is set to "1". And issue an alarm.
[0023]
When the brake switch 29 is turned off, the process proceeds from step 24 to step 27 to determine the state of the flag F. If F = 1, the process proceeds to step 28 to determine whether or not the brake switch 29 is turned off for 3 seconds or more. If it is less than 3 seconds, the process proceeds to step 30 and step 33 to issue an alarm with the alarm flag W = 1, and if it is 3 seconds or more, the process proceeds to step 29 to set the flag F to “0” and jump to step 34 to alarm flag W = 0.
[0024]
In other words, when starting from a stopped state, etc., when the brakes are released from the state where the brakes are applied (when the brake switch 11 changes from on to off), the brakes are released for 3 seconds while the vehicle is accelerating when starting. Since it is necessary to pay particular attention to the moving body, a warning is issued (warning flag W = 1).
[0025]
When the routine proceeds to step 30, it is determined whether or not the shift position is in parking or neutral. When the shift position is neither parking nor neutral, that is, during normal driving, the routine proceeds to step 33 and an alarm is issued with an alarm flag W = 1.
[0026]
When parking or neutral, the process proceeds from step 30 to step 31 to determine whether or not the vehicle is in the parking state. If parking, the vehicle is stopped and the routine jumps to step 34, where the warning flag W = 0 and no warning is issued.
When the parking is not performed at step 31, that is, when the vehicle is neutral, the routine proceeds to step 32, where it is determined whether or not the side brake is activated and the side brake switch 33 is turned on. The warning flag W = 0 and no warning is issued, and when the side brake is not activated, the routine proceeds to step 33 at the time of starting or the like, and the warning flag W = 1 is issued.
[0027]
As described above, the alarm operation control device 11 prohibits an alarm during traveling at a vehicle speed of 40 km / h or more when a moving body such as a motorcycle is detected for a vehicle being driven, and blinker switch when turning right or left 27 is on and off from on and issues a warning for 3 seconds. If the brake is not being depressed or the brake is depressed for less than 2 seconds, the alarm is prohibited. When the brake is depressed for more than 2 seconds and when the brake is released and the vehicle starts for less than 3 seconds, an alarm is issued. When the shift position is parked or when the side brake is operating in neutral, the alarm is prohibited. However, when the side brake is not operating, it is controlled to issue an alarm.
[0028]
In the present embodiment, when it is determined that the alarm is not required with the alarm flag W = 0 as a result of analyzing the driving state, the alarm buzzer 14 is not driven and no alarm is issued, but the in-vehicle display lamp 13 is lit and the automatic In addition to notifying the driver of the automobile 4 that a moving body is present within a predetermined distance of the automobile 1, the automatic automobile 1 receives a warning radio wave transmitted by turning on the outside display lamp 16. The moving body side can confirm that the moving body has been detected.
[0029]
If it is determined that the alarm is required with the alarm flag W = 1 as a result of analyzing the driving state, the alarm buzzer 14 is driven to issue an alarm to the driver of the automobile 1 and the in-vehicle display lamp 13 and the vehicle outside display lamp 16 are both flashed to give special attention to the driver and the moving body side of the four-wheeled vehicle 1. On the moving body side, the vehicle outside display lamp 16 is flashing instead of being lit. In addition to confirming that the alarm radio wave has been received and the moving object has been detected, it is possible to know that the automobile 4 needs special attention.
[0030]
In addition to the moving body that has transmitted the alarm radio wave, a mobile body that has transmitted the alarm radio wave to the surroundings of the automobile 4 by the blinking of the outside display lamp 16 of the automobile 4 requires attention. Even if it cannot be confirmed with eyes, it can be known that it exists in a positional relationship.
[0031]
【The invention's effect】
In the present invention, when a signal transmitted from another moving body is received, the vehicle display means informs the occupant of the presence of the moving body, and the reception state is displayed by the vehicle outside display means, whereby the mobile body on the transmission side is displayed. Can also confirm the reception.
[0032]
In addition, by changing the display state according to the driving state of the vehicle, it is possible not only to confirm that the alarm signal is received and the moving body is detected on the moving body side, but also to know whether or not the vehicle requires special attention. it can.
[0033]
In addition to the moving body that has transmitted the alarm radio wave, there is also a moving body that is in the vicinity of the vehicle in a positional relationship that requires attention, depending on the display state of the vehicle outside display means. You can know even if you can't confirm with your eyes.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of a four-wheeled vehicle equipped with a moving body detection apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic block diagram of a control system of the mobile object detection device.
FIG. 3 is a flowchart showing an alarm control work procedure in the control system;
FIG. 4 is a flowchart showing an operation state analysis subroutine.
[Explanation of symbols]
1 ... Automobile, 2 ... Instrument panel, 3 ... Front pillar, 4 ... Front bumper,
10 ... moving body detection device, 11 ... alarm operation control device, 12 ... receiver, 13 ... in-vehicle display lamp, 14 ... alarm buzzer, 15 ... antenna, 16 ... out-vehicle display lamp,
20 ... Reception intensity comparator, 21 ... Buzzer drive, 22,23 ... Lamp drive,
25 ... vehicle speed sensor, 26 ... vehicle speed comparator, 27 ... winker switch, 28 ... winker timer, 29 ... brake switch, 30 ... brake timer, 31 ... shift position switch P, 32 ... shift position switch N, 33 ... side brake switch .

Claims (1)

In a moving body detection apparatus that detects a moving body by receiving a signal transmitted by another moving body that is mounted on a vehicle and is present in the surrounding area,
A discriminating means for discriminating whether the electric field intensity of the received signal exceeds a set value and detecting a moving body;
Driving state detection means for detecting a driving state according to at least the speed of the vehicle or the operating state of the blinker, brake, and shift position;
In-vehicle display means for displaying to the occupant when a moving object is detected,
Vehicle outside display means for visual display to the outside when a moving object is detected ;
A moving body detection apparatus comprising: a display state changing unit that changes a display state of the in-vehicle display unit and the outside display unit according to the driving state detected by the driving state detection unit.

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