JPH1086861A - Driving recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving recorder which can be used for improvement of an automobile driving technique or specification of an accident cause. SOLUTION: A driving recorder is provided with recording units 60-62, which can record information about moving speed, acceleration, and a position of a moving body in the respective space axes, a motor driving condition, a driver's action, a periphery of the moving body, an internal image and sound, or a time, and a controller 55, which controls at least a part of the information recorded in the recording units 60-62 by automatically deleting it along with the elapse of time or selectively storing the recorded data so as to copy it to another medium or so as to transmit it to another apparatus by communication. At least a part of the recorded information is protected so as not to be changed/deleted without a coded order such as a password or a hardware mechanism such as a key.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a driving recorder in, for example, a car navigation system.

[0002]

2. Description of the Related Art A car navigation system specifies a traveling position of a moving body such as an automobile based on signals, speeds, accelerations, and map information from a satellite, and records a passage or guides a route to a destination on a screen. Alternatively, it is performed by voice. FIG. 6 is a diagram showing a basic configuration of such a car navigation system, and includes a system main body 101.
And a display device 102 connected via a cable 103
And

[0003]

However, since the above-mentioned conventional car navigation system has a main purpose of knowing the position of the car, the information recorded on the driving recorder is small, and the recorded data is used for driving the car. It could not be used to identify the cause of technical improvements or accidents.

The driving recorder of the present invention has been made in view of such a problem, and an object of the invention is to provide a driving recorder which can be used for improving the driving technique of an automobile and identifying the cause of an accident or the like. To provide.

[0005]

In order to achieve the above object, a driving recorder according to a first aspect of the present invention provides a driving recorder in which the speed, acceleration, position,
A recording medium capable of recording information relating to the driving state of the prime mover, operation of the driver, images and sounds around and inside the moving body, time, and the like, and at least a part of the information recorded in the recording medium is automatically recorded by elapse of time or the like. To erase, to selectively save the recorded data, or to copy to another medium, or equipped with control means to control to communicate to other devices by communication, at least a part of the recorded information, It is protected so that it cannot be changed or erased without a coded instruction such as a password or a hardware mechanism such as a key.

A driving recorder according to a second aspect of the present invention provides a moving recorder in which the speed, acceleration, and position of motion in each spatial axis direction of a moving body, the driving state of a prime mover, the operation of a driver, the image and sound around or inside the moving body, A recording medium capable of recording information relating to time and the like, and automatically erasing at least part of the information recorded on this recording medium with the passage of time, selectively storing recorded data, and other media Control means for controlling transmission to another device by copying or communication, and at least a part of the recorded information can be performed without a coded instruction such as a password or a hardware mechanism such as a key. Protect from reading.

A driving recorder according to a third aspect of the present invention provides a driving recorder in which the speed, acceleration, and position of movement of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, the image and sound around or inside the moving body, A recording medium capable of recording information relating to time and the like, and automatically erasing at least part of the information recorded on this recording medium with the passage of time, selectively storing recorded data, and other media And control means for controlling transmission to another device by copying or communication, wherein the recording medium is protected against mechanical external force.

A driving recorder according to a fourth aspect of the present invention provides a driving recorder in which the speed, acceleration, and position of motion of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, the image and sound around or inside the moving body, A recording medium capable of recording information relating to time and the like, and automatically erasing at least part of the information recorded on this recording medium with the passage of time, selectively storing recorded data, and other media And control means for controlling transmission to another device by copying or communication, and the recording medium is detachable from the recorder main body.

A driving recorder according to a fifth aspect of the present invention provides a driving recorder in which the speed, acceleration, and position of motion of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, the image and sound around or inside the moving body, Recording means for recording information relating to time and the like; at least a part of the information recorded by the recording means is automatically erased as time elapses, etc .; A control means for controlling transmission to other devices by copying or communication is provided, and when a driver performs an inappropriate operation with respect to the state of the moving body, a warning is given by voice.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, it is assumed that a driving recorder is used together with a car navigation system.

FIG. 1 is an external perspective view of a driving recorder according to an embodiment of the present invention. As shown in FIG. 1, a display 2 with a touch panel, a navigation window 2a, a time display window 2b, an input window 2c, buttons and switches 3,
A microphone 4, a speaker 5, a connector 6, an IC card slot 7, and the like are provided, and buttons and switches 4, a speaker 5, a connector 6, an IC card slot 7, and the like are provided on the outside of the housing 1. .

A processor, a memory, and the like are provided inside the housing 1. FIG. 2 is a perspective view showing a configuration of a driving recorder according to another embodiment.

The upper casing is a main casing 1.
1 and the protective plate 12 have a double structure, and when placed on the dashboard of an automobile, the influence of the temperature rise on the uppermost surface is less likely to reach the internal circuit even when exposed to direct sunlight.
An inclined air flow path is formed between the protection plate 12 and the main body casing 11, and when the temperature of the protection plate 12 increases, air flows by natural convection.

The main board 1 inside the main body casing 11
3 includes a processor 14, an LSI 15 such as a memory,
An acceleration sensor 16, a storage card 17, a connector 18, a secondary battery 19, and the like are attached. Furthermore, although the camera 20 is built in, two are provided to obtain distance information by parallax.

The information at the time of operation is recorded on the storage card 17, and even if the main board 13 is damaged by an accident or the like, only the record can be taken out. It is also possible to record information for each operator of the vehicle.

FIG. 3 is a diagram for explaining information recorded by the above-mentioned driving recorder.
The driving recorder 40 includes a motor rotation speed from the motor 30, a transmission position, an accelerator and brake operation amount from the steering unit 35, a vehicle speed from the wheels 36, a steering angle, an image from the console 34, a sound, the front camera 32. Then, information on the surrounding moving image from the rear camera 33 is recorded in a memory (for example, the LSI 15 in FIG. 2).

Further, acceleration information is recorded from an acceleration sensor 31 built in the driving recorder 40.
The acceleration sensor 31 is mounted near the center of gravity of the vehicle body, and detects accelerations in a plane parallel to the ground, in six directions of vertical, roll, yaw, and pitch. Information from the acceleration sensor 31 is stored in a non-volatile memory (for example, the LSI 15 in FIG. 2) in a robust container in the driving recorder 40.
And the past data in a range falling within the capacity of the nonvolatile memory is accumulated.

The above-mentioned data storage is sequentially overwritten on the memory, and information for the past certain time is always stored. Even when power is not supplied from the outside, the memory is retained by the built-in battery and the operation of the device can be performed. The built-in battery is automatically charged when connected to an external power supply, but it is also possible to take out only the battery and perform charging. A memory that does not require a power supply for storing data, such as a flash memory, may be used. It has a card slot and can retrieve information stored in the memory.

Further, the torque and the number of revolutions of the motor 30 of the motor vehicle are input in advance as numerical data from the outside, or are identified by information from various parts obtained by the operation of the driver when the vehicle is considered to have no trouble. The throttle opening, the suspension spring coefficient and the damping coefficient deviate from the values obtained during driving by more than a certain range. 34 and emit a warning sound.

FIG. 4 is a block diagram showing a control device (for example, the processor 1 shown in FIG. 2) in the driving recorder in response to information from each unit.
FIG. 4D is a diagram for explaining what kind of processing is performed. That is, the control device 55 includes the surrounding images from the front camera 51 and the rear camera 52, the acceleration from the acceleration sensor 53, the speed from the speedometer 54, the time from the clock device 56, the operation amount from the brake 70, the throttle 69 , The number of rotations from a tachometer 68 attached to the prime mover 67, the position (position) from the transmission 66, the amount of operation from the rudder 65, the travel position from the GPS antenna 64, and the like are input. .

The control unit 55 receives information from the above-described units,
A predetermined process is performed in response to an input from the input device 57 and the digital display via the image display device 58, the speaker 59, the recording device 60 for the analog amount, the recording device 2 (61) for the digital amount, and the encryption device 63. The processing result is output to the recording device 1 (62).

For example, the control device 55 controls the operating condition of the prime mover 67 and various operating devices (the brake 70 and the throttle 6).
9, the operation amount of the rudder 65), the surrounding image, the speed, and the acceleration are acquired at regular intervals based on a signal from the clock device 56,
The information is recorded on the recording device together with the information acquisition time. At this time, the character information input from the input device 57 may be simultaneously recorded. For example, the surrounding images from the front and rear cameras 51 and 52 that capture the front and rear images are recorded on an analog recording device 60 such as a video tape. Alternatively, the digital image may be recorded in the digital recording device 2 (61) as a digital image photographed at regular intervals.

When an acceleration equal to or higher than a preset value is detected, the driver is first notified that excessive acceleration has been detected by a sound such as a buzzer bell, and the acceleration becomes sufficiently small. In addition, the recording is stopped after a lapse of a sufficiently short time from the preset total recordable time of the memory from the detection of the excessive acceleration. In addition, when the driver performs an inappropriate operation with respect to the state of the vehicle, the driver is alerted by voice. Also,
Even when power is not supplied to the vehicle, the recording operation is started when the acceleration sensor 53 detects acceleration equal to or higher than a predetermined value.

The information is encrypted by the encryption device 63 and recorded in the digital amount recording device 1 (62).
The digital amount recording device 1 (62) is housed in a durable housing with a key (for example, a metal housing), and is removable from the driving recorder as a nonvolatile memory card or a magnetic recording medium. .

More specifically, the storage card 17 is attached to the main board 13 inside the main body casing 11, and a lid 11a provided on the main body casing 11 is provided with a cylinder lock 11 so that the storage card 17 cannot be easily taken out.
b is locked by a key 11c (FIG. 5A)
reference). The key 11c is separately stored by a key manager (an insurance company or the like), and when it becomes necessary to remove the storage card 17, the key 11c is used to hold the cylinder lock 11c.
The lock of b is released (see FIG. 5B).

A key for decrypting the encrypted information is not given to the driver, and a key for decryption is separately stored by a key manager (for example, an insurance company). I have.

On the other hand, information other than accident analysis for use as a part of car navigation is recorded by a recording device (digital recording device 2 (6) which is not encrypted by the driver.
1)) can be freely read and written.

As described above, in the present embodiment, the speed, acceleration, and position of the movement of the automobile in each spatial axis direction, the driving state of the prime mover, the operation of the driver, the image and sound around or inside the moving body, and the time are stored. Then, a part of the stored information can be automatically erased with the passage of time or the like, the stored data can be selectively saved, copied to another medium, or transmitted to another device by communication.

[0029]

According to the above-described embodiment, the operation of the driver and the recording of the behavior of the vehicle can be used to identify the cause of the accident in the event of an accident and to improve the driving technique in the normal case. Also,
By notifying the driver of an inappropriate operation during driving, an accident can be prevented.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a driving recorder according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a configuration of a driving recorder according to another embodiment.

FIG. 3 is a diagram for describing information recorded by a driving recorder.

FIG. 4 is a diagram for explaining what processing is performed by a control device in response to information from each unit.

FIG. 5 is a diagram for explaining how to protect the recording device of the driving recorder according to an embodiment of the present invention.

FIG. 6 is a diagram showing a basic configuration of a car navigation system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Housing, 1a ... Sensor and antenna accommodating part, 1b ... Fixing and heat dissipation bracket, 2 ... Display with touch panel,
2a navigation window, 2b time display window, 2c input window, 3 button and switch, 4 microphone, 5 speaker, 6 connector, 7
IC card slot, 8 camera, 11 body casing, 12 protection plate, 13 main board, 14 processor, 15 LSI, 16 acceleration sensor, 17 storage card, 18 connector, 19 secondary battery , 20 ... Camera.

Claims (5)

[Claims] 1. A recording medium capable of recording information on speed, acceleration, position of a moving body in each spatial axis direction, driving state of a motor, operation of a driver, image / sound around or inside the moving body, time, and the like. Automatically erases at least part of the information recorded on this recording medium with the passage of time, selectively saves the recorded data, copies it to another medium, or transmits it to another device by communication. And control means for controlling the transmission of information, wherein at least a part of the recorded information is protected from being changed or erased without a coded instruction such as a password or a hardware mechanism such as a key. Driving recorder characterized by the following. 2. A recording medium capable of recording information relating to the speed, acceleration, and position of motion of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, images and sounds around and inside the moving body, time, and the like. Automatically erases at least part of the information recorded on this recording medium with the passage of time, selectively saves the recorded data, copies it to another medium, or transmits it to another device by communication. And control means for controlling the communication so that at least a portion of the recorded information is protected from being read without a coded instruction such as a password or a hardware mechanism such as a key. Driving recorder. 3. A recording medium capable of recording information relating to the speed, acceleration, and position of motion of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, images and sounds around and inside the moving body, time, and the like. Automatically erases at least part of the information recorded on this recording medium with the passage of time, selectively saves the recorded data, copies it to another medium, or transmits it to another device by communication. Control means for controlling the recording medium to be transmitted, wherein the recording medium is protected against mechanical external force. 4. A recording medium capable of recording information relating to the speed, acceleration, and position of motion of a moving body in each spatial axis direction, the driving state of a prime mover, the operation of a driver, the image / voice around and inside the moving body, time, and the like. Automatically erases at least part of the information recorded on this recording medium with the passage of time, selectively saves the recorded data, copies it to another medium, or transmits it to another device by communication. Control means for controlling the recording medium to be transmitted, wherein the recording medium is detachable from the recorder main body. 5. A recording means for recording information relating to the speed, acceleration, and position of motion of the moving body in each spatial axis direction, the driving state of the prime mover, the operation of the driver, the image and sound around or inside the moving body, the time, and the like. Automatically deletes at least a part of the information recorded by the recording means as time elapses, selectively saves the recorded data, copies it to another medium, or transmits it to another device by communication A driving recorder comprising: a control unit for controlling the moving object so as to alert the driver by voice when the driver performs an inappropriate operation on the state of the moving object.