JPH07260930A - Travel body detection device - Google Patents

Abstract

PURPOSE:To maintain the importance of indication without causing any trouble on a driver by receiving a corresponding return signal and indicate an alarm or the like, only when a demand signal is transmitted from both sides of an own vehicle. CONSTITUTION:When a vehicle speed is equal to or less than the prescribed value (e.g. 40km/h), a control device 1 instructs an oscillator 3 to issue a demand signal (a signal to demand a return signal when a mating vehicle is within the preset distance from an own vehicle). The oscillator 3 inputs an oscillation signal to a frequency mixer 4, and amplifies at a step 6 the demand signal combined with a signal synthesized with a PLL synthesizer 5 for transmission at a step 7. Concurrently, a timer 2 starts a counting process. Furthermore, when a counted time (corresponding to a distance up to the mating vessel) exceeds the preset time upon receipt of the return signal, only an indicator lamp 13 is made to light, thereby informing that the mating vehicle exists at a position not so near within the preset distance. Also, when the counted time is equal to or less than the preset time, the lamp 13 is made to flash and a buzzer 15 is sounded, thereby informing that the mating vehicle exists at a considerably near position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting the presence of a moving body around a vehicle.

[0002]

2. Description of the Related Art Conventionally, as disclosed in, for example, Japanese Patent Laid-Open No. 2-216600, a vehicle equipped with a transmitting device capable of transmitting an alarm radio wave within a certain area, and a reception capable of receiving a constant alarm radio wave. 2. Description of the Related Art There is known a vehicle proximity warning device that informs a driver of a receiving vehicle of a mutual proximity by an alarm when a vehicle equipped with the device approaches within a certain distance.

[0003]

[Problems to be Solved] However, the vehicle proximity warning device always issues a proximity warning if the other vehicle approaches within a certain distance of the other vehicle regardless of the driving states of the both vehicles. The alarm is given even when there is no alarm, and the driver is bothered. Also, the useless alarm is mixed, and when the alarm is really needed, the awareness of the alarm decreases and the importance of the alarm cannot be maintained. Had the problem of.

Further, since the alarm is made by detecting only the presence of the other party's moving object within a predetermined distance, information about the type of the other party's vehicle and the driving state cannot be obtained. Therefore, the lack of this amount of information makes the warning important. It may be lowered.

The present invention has been made in view of the above points,
The purpose of this is to provide a moving body detection device which can maintain the importance of the display without giving the driver trouble and without causing unnecessary display.

[0006]

In order to achieve the above object, the present invention provides a moving body detecting apparatus for detecting the presence of a moving body such as a vehicle by receiving a signal transmitted from the moving body. Request signal transmitting means for transmitting a request signal requesting a reply signal to the surrounding area, receiving means for receiving the reply signal transmitted by the mobile body in response to the request signal, and display means for displaying the presence of the mobile body, The moving body detection device includes a display control unit that controls the display of the display unit when the reception unit receives the reply signal.

Only when a request signal is transmitted from the vehicle side of the vehicle, a reply signal to the request signal is received and an alarm or the like is displayed. Therefore, the alarm or the like is not issued except when necessary, and the display is not performed. The importance of can be maintained. Further, by detecting the state or type of the other party moving body from the reply signal and changing the display state of the display means according to the same state or type, the amount of information to be displayed can be increased and the importance of the display can be maintained.

The term "display" here means not only a visual display that is visually perceptible but also an auditory display that is perceptually perceived, and the change of the display state is to change or display the display or not. Even in such a case, it means various changes such as a change in the display intensity, a change in which the visual display and the auditory display are combined and the operating state thereof is changed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in FIGS. 1 to 4 will be described below. Figure 1 shows the transmitter 7 on the automobile side.
1 is a schematic block diagram of a mobile unit detection control device including a receiver 10.

The control device 1 is a control device by a microcomputer, which is provided with a timer 2 for instructing an oscillator 3 to oscillate a request signal and receiving a signal via an antenna 9.
Input the received reply signal to 10 and the vehicle speed sensor 11
The vehicle speed information of the four-wheeled vehicle detected by is input.

The oscillator 3 oscillates when instructed, and the oscillating signal is input to the frequency mixer 4 and the PLL synthesizer 5
Is combined with the signal combined in step S1, and then amplified to the power required for transmission by the amplifier 6 and then transmitted to the antenna 8 by the transmitter 7.
Sends a request signal from.

The motorcycle has a display lamp 13 and a buzzer 15 provided on its instrument panel.
The lamp driving signal from the controller 1 is the lamp driving means 12
Is output to the display lamp 13, the indicator lamp 13 is turned on or off by the lamp driving means 12, and when the control device 1 outputs a buzzer driving signal to the buzzer driving means 14, the buzzer driving means 14 causes the buzzer 15 to generate a buzzer sound. .

On the other hand, FIG. 2 is a schematic block diagram of a communication control device including a receiver 23 and a transmitter 28 on the motorcycle side.
The control device 21 is a control device using a microcomputer, and inputs the request signal received by the receiver 23 via the antenna 22 to the control device 21 and instructs the oscillator 24 to oscillate a reply signal. The signal of the oscillator 24 is the frequency mixer 25.
Is input to the signal and is combined with the signal synthesized by the PLL synthesizer 26, is then amplified by the amplifier 27, and is transmitted as a reply signal from the antenna 29 by the transmitter 28.

Further, the motorcycle is equipped with a buzzer 31, and a buzzer driving signal is sent from the control device 21 to the buzzer driving means.
When output to 30, the buzzer driving means 30 causes the buzzer 31 to generate a buzzer sound.

The control procedure by the moving body detection control device provided in the present four-wheeled motor vehicle and the communication control device provided in the other party motorcycle as described above will be described with reference to FIGS. 3 and 4, respectively. First, the control procedure on the side of the four-wheeled motor vehicle of FIG. 3 determines in step 1 whether the vehicle speed detected by the vehicle speed sensor 11 is less than or equal to a predetermined value. Here, the predetermined value is, for example, about 40 km / h. When the vehicle speed exceeds the predetermined value, it means that the vehicle is running normally and the necessity of the information about the moving objects existing in the surroundings is low. Therefore, the moving object does not proceed to the previous step of the moving object detection control routine. Is not detected.

If the vehicle speed is equal to or lower than the predetermined value, the process proceeds to step 2 and the request signal is transmitted by the transmitter. The request signal is
This signal is a request to send a reply signal if the other motorcycle is within a predetermined distance of our motorcycle, and the timer 2 starts timing at step 3 almost at the same time as the transmission of the request signal.

Then, it is determined in step 4 whether or not the predetermined time limit T _MAX is timed, in step 5 it is determined whether or not the reply signal is received, and in step 5 until the reply signal is received within the time limit. Return to step 3, then step 3,
Repeat steps 4 and 5 to continue timer 2 timing. If no reply signal is received within the time limit T _MAX , step 4
Then, the process jumps to step 1 to determine again whether the vehicle speed is equal to or lower than a predetermined value. If it is lower than the predetermined value, a request signal is transmitted and the timer 2 is restarted.

When a reply signal is received within the time limit T _MAX , the process proceeds from step 5 to step 6 to determine whether the time t measured by the timer 2 is the predetermined time T or less. Here, the time t measured by the timer 2 is the time from the transmission of the request signal to the reception of the reply signal, which corresponds to the distance between the automatic four-wheeled vehicle and the other motorcycle, and the predetermined time T. If it is below, it can be determined that the distance between the two vehicles is considerably close.

When the measured time t exceeds the predetermined time T, the process proceeds to step 7 and the lamp driving means 12 is instructed to turn on only the display lamp 13 so that the driver of the automatic four-wheeled vehicle is within a predetermined distance. Can inform that the motorcycle exists at a position that is not so close, and when the time count t is the predetermined time T or less, proceed to step 8 and instruct the lamp drive means 12 to blink the display lamp 13. Further, the buzzer driving means 14 can be instructed to sound the buzzer 15 to give an alarm, and the presence of the motorcycle at a considerably close position can be notified in a form that calls attention.

On the other hand, the control procedure on the opponent motorcycle side in FIG. 4 is in the reception standby state while judging whether or not the request signal is received in step 11, and when the request signal is received, step 12 is executed.
Then, the buzzer driving means 30 is instructed to ring the buzzer 31 to inform the driver of the motorcycle that the motorcycle exists within the predetermined distance and the request signal is transmitted from the motorcycle, and then in step 13. The transmitter transmits a reply signal within a predetermined distance.

As described above, since the request signal is transmitted only when the automatic four-wheeled vehicle is running at the vehicle speed equal to or lower than the predetermined value, and the reply signal is returned based on the request signal, an alarm etc. is issued except when necessary. Since the display is not performed and the driver is not bothered, and the display is not useless, the importance of the display can be maintained by paying particular attention when the display is highly recognized. Further, the motorcycle side also needs to transmit the signal only when the request is received, which brings about an effect that unnecessary transmission is not required.

Further, the display state is changed by recognizing whether or not the distance between our four-wheeled motor vehicle and the other-handed motorcycle is considerably close, and the display state is changed to a position within a predetermined distance but not so close. Indicator 13 when motorcycle is present
Only the lights are turned on to inform the driver of our automobile and no alarm is given, so it is not bothersome. Further, in some cases, the display lamp 13 may not be turned on. On the other hand, when the opponent motorcycle exists at a position quite close to the other side, the indicator lamp 13 blinks and the buzzer 15 sounds, and an alarm is issued, so that the driver of our motorcycle can be particularly alerted. The importance of the display can be increased.

Next, another embodiment will be described with reference to FIGS. FIG. 5 is a schematic block diagram of a moving body detection control device provided in the four-wheeled motor vehicle of the present embodiment,
Although it is almost the same as that shown in FIG. 1 (the same members use the same reference numerals), the signals input to the control device 1 include the detection signal of the winker switch 16 in addition to the vehicle speed sensor 11. The winker switch 16 is a switch operated by the driver when the automobile turns left or right,
This is a device that detects the driving state of the automobile with the vehicle speed sensor 11.

On the other hand, FIG. 6 is a schematic block diagram of the communication control device provided in the opponent motorcycle of this embodiment, and the basic structure is the same as that shown in FIG. 2 (the same members use the same reference numerals). Separately, in the present embodiment, the detection signal is input to the control device 21 from the vehicle speed sensor 40 of the motorcycle.

The control device 21 inputs the vehicle speed information of the vehicle speed sensor 40, sets it in a predetermined radio wave format, outputs it to the frequency mixer 25, and transmits the vehicle speed information in a reply signal by the frequency mixer 25. It is transmitted by the device 28. In the moving body detection control device on our motorcycle, the control device 1 analyzes the reply signal received by the receiver 23, extracts the vehicle speed information of the opponent motorcycle, and uses it for display control.

FIG. 7 is a flow chart showing the procedure in the same control. Steps 21 to 25 are the same as steps 1 to 5 in FIG. 3 of the above-mentioned embodiment, and when a reply signal is received in step 25. When it is determined, the process proceeds to step 26, and it is determined whether or not the vehicle speed of the opponent motorcycle (vehicle speed information sent in the reply signal) is equal to or higher than a predetermined value. If it is less than the predetermined value, the process proceeds to step 27 and the winker switch 16 is operated. From the detection signal, determine whether or not the four-wheeled motor vehicle is turning right or left. If it is not turning right or left, step
Proceed to 28 and light only the indicator lamp 13.

That is, when the opponent motorcycle is at a low speed below a predetermined value and the four-wheeled motor vehicle is not in the right / left turning state, the motorcycle exists within the predetermined distance from the four-wheeled motor vehicle, but it is not enough to warn. Therefore, only the display lamp 13 is turned on to inform the driver only and no troublesome display such as an alarm is given.

When the opponent motorcycle has a speed equal to or higher than a predetermined value, the process jumps from step 26 to step 29 to blink the indicator lamp 13 and sound the buzzer 15 to give an alarm. Further, even if the opponent motorcycle is not at a speed equal to or higher than the predetermined value, if the other motorcycle is in the state of turning left or right, step 27 to step 29.
The indicator lamp 13 is blinked, the buzzer 15 is sounded, and an alarm is issued.

In this way, when the opponent motorcycle is within the predetermined distance and the vehicle speed is equal to or higher than the predetermined value, or when the automatic four-wheeled vehicle is in the right / left turning state, the indicator lamp 13 blinks and the buzzer 15 is turned on. Since the ringing alarm is issued, it is possible to call the driver of the four-wheeled motor vehicle of particular attention, and the importance of the display can be further increased.

In the above-mentioned embodiment, the display state is controlled by judging the driving state of the four-wheeled motor vehicle from the detection information of the vehicle speed sensor 11 and the winker switch 16. However, the shift state switch further shifts the state such as parking or neutral. Information and the braking information from the brake switch, etc. to determine the operating state and display lamp 13 and buzzer
The display state may be changed by controlling the driving of 15.

As yet another embodiment, an example in which control as shown in FIG. 8 is performed in a moving body detection control device mounted on a counterpart motorcycle is conceivable. That is, in the control procedure shown in FIG. 4, step 32 for determining whether the vehicle speed of the motorcycle is a predetermined value or more is inserted between step 11 and step 12, and it is determined that the request signal is received in step 31. If so, the process proceeds to step 32, and it is determined whether the vehicle speed of the motorcycle is a predetermined value or more.
Proceed to step 3 to drive the buzzer and send a reply signal in the next step 34. If the vehicle speed is below the predetermined value, step 32
The process returns from step 31 to step 31 so that the reply signal is not transmitted.

Therefore, on the side of the four-wheeled motor vehicle, when the other motorcycle is at a low speed less than the predetermined value, even if the other motorcycle is within the predetermined distance and the request signal is transmitted, the reply signal is not transmitted. After all, the display is not made, the driver is not bothered and the importance of the display can be maintained without wasteful display.

In the above embodiments, the opponent moving body is a motorcycle, but it can be applied to a pedestrian or the like other than other vehicles or vehicles. In the case of a pedestrian, the moving body detection shown in FIG. Carry a miniaturized control device.

As described above, when each type of moving body is equipped with the moving body detection control device, an identification signal for identifying the type of the moving body is placed in the reply signal, and on the side of the four-wheeled motor vehicle, the control device causes the identification signal to be sent by the control device. It is possible to determine what the opponent mobile body is by displaying the type. By increasing the amount of information displayed, the importance of display can be maintained.

Further, another signal indicating the driving state of the other party moving body, such as a brake signal, is placed in the reply signal, and in the case of our vehicle, the signal is discriminated and the display state is changed to further increase the amount of information that can be displayed. The importance of display can be further increased.

[0036]

According to the present invention, since the reply signal is received and the warning is displayed only when the request signal is transmitted from the vehicle side of the present invention, the driver is not warned except when necessary. It is possible to maintain the importance of the display without giving any trouble. Further, by changing the display state according to the time from the transmission of the request signal to the reception of the reply signal, it is possible to increase the information amount of the display and maintain the importance of the display.

By placing the traveling state information of the opponent mobile unit on the reply signal and changing the display state according to the traveling state information of the reply signal received by the receiving means, the amount of information to be displayed is increased and the importance of the display is increased. Can be maintained. Further, by adding the moving body identification information of the opponent moving body to the reply signal and changing the display state of the display means according to the moving body identification information of the reply signal received by the receiving means, the amount of information to be displayed can be increased. The importance of the display can be maintained.

By transmitting the request signal according to the driving state of the vehicle, it is possible to prevent useless communication without transmitting the signal itself requesting the reply signal except when necessary. Further, by changing the display state of the display means in accordance with the driving state of the vehicle, it is possible to maintain the importance of the display without giving an alarm and the like except when necessary, without giving any trouble.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a moving body detection control device mounted on a four-wheeled automatic vehicle of a moving body detecting apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a communication control device mounted on a counterpart motorcycle of the present embodiment.

FIG. 3 is a flowchart showing a control procedure by a moving body detection control device mounted on our automatic four-wheeled vehicle.

FIG. 4 is a flowchart showing a control procedure by a communication control device mounted on a counterpart motorcycle.

FIG. 5 is a schematic block diagram of a moving body detection control device mounted on a four-wheeled motor vehicle of another embodiment.

FIG. 6 is a schematic block diagram of a communication control device mounted on a counterpart motorcycle in the embodiment.

FIG. 7 is a flowchart showing a control procedure by a moving body detection control device mounted on our automatic four-wheeled vehicle.

FIG. 8 is a flowchart showing a control procedure by a communication control device mounted on a counterpart motorcycle according to another embodiment.

[Explanation of symbols]

1 ... Control device, 2 ... Timer, 3 ... Oscillator, 4 ... Frequency mixer, 5 ... PLL synthesizer, 6 ... Amplifier, 7 ... Transmitter, 8, 9 ... Antenna, 10 ... Receiver, 11 ... Vehicle speed sensor, 12 ... lamp driving means, 13 ... indicator lamp, 14 ... buzzer driving device, 15 ... buzzer, 16 ... winker switch, 21 ...
Control device, 22 ... Antenna, 23 ... Receiver, 24 ... Oscillator, 25
… Frequency mixer, 26… PLL synthesizer, 27… Amplifier,
28 ... Transmitter, 29 ... Antenna, 30 ... Buzzer driving means, 31 ...
Buzzer, 40 ... Vehicle speed sensor.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G08G 1/16 A

Claims (6)

[Claims] 1. A moving object detection device for detecting the presence of a moving object by receiving a signal transmitted from a moving object such as a vehicle, and a request signal transmitting means for transmitting a request signal requesting a reply signal to the surroundings. Receiving means for receiving a reply signal transmitted by the mobile body in response to the request signal, display means for displaying the presence of the mobile body, and display for the display means when the receiving means receives the reply signal. A moving object detection device comprising: a display control unit for controlling. 2. A time measuring means for measuring the time from the transmission of the request signal to the reception of the reply signal, wherein the display control means changes the display state of the display means according to the time measured by the time measuring means. The moving body detection device according to claim 1, wherein 3. The reply signal has traveling state information of a mobile body, and the display control means changes the display state of the display means according to the traveling state information of the reply signal received by the receiving means. The moving body detection device according to claim 1. 4. The reply signal has moving body identification information of the opponent moving body, and the display control means changes the display state of the display means according to the moving body identification information of the reply signal received by the receiving means. The moving body detection device according to claim 1, wherein 5. A driving state detecting means for detecting a driving state such as a running state of a vehicle or an operating state of various operating devices is provided, and the request signal transmitting means is provided in accordance with the driving state detected by the driving state detecting means. The moving object detecting device according to claim 1, wherein the moving object detecting device transmits a request signal. 6. A driving state detecting means for detecting a driving state such as a running state of a vehicle or an operating state of various operating devices, wherein the display control means displays the display according to the driving state detected by the driving state detecting means. 2. The moving body detection device according to claim 1, wherein the display state of the means is changed.