JP2010224790A - Drive recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive recorder, improved in vehicle mountability and life. <P>SOLUTION: The drive recorder D includes a camera 2 installed in a vehicle; an acceleration sensor 3 capable of detecting two longitudinal and lateral axial accelerations of the vehicle; a storage means 4 for storing images taken by the camera 2 and the accelerations detected by the acceleration sensor 3; and a recorder-side cord C1 connectable to a vehicle power source to supply power to the camera 2, the acceleration sensor 3 and the storage means 4. One of a 5-pin mini universal serial bus connector 25 and a mini universal serial bus receptacle 24 is provided at an end of the recorder-side cord C1. When voltage signal is input from an ID pin 24d, the camera 2 and the acceleration sensor 3 are driven to store the image information in the storage means 4, and when no voltage signal is input from the ID pin 24d, the image information is not stored in the storage means 4 without driving the camera 2 and the acceleration sensor 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a drive recorder that stores a traveling state of a vehicle.

  This type of drive recorder includes a camera installed in a two-wheeled vehicle, an acceleration sensor that detects the acceleration of the two-wheeled vehicle, and storage means that always stores an image captured by the camera, and the acceleration data has a threshold value. When this exceeds a certain time continuously, this is set as a condition (trigger), and the image stored in the storage means is read and the images before and after the trigger detection are recorded on the memory card (for example, each patent document) reference).

  The camera, the acceleration sensor, and the control device provided with the storage means are not particularly integrated, and are installed separately on the two-wheeled vehicle and electrically connected with a cord so as to function as a drive recorder. It has become.

  The drive recorder described above is set to a stationary type, does not consider removal from the motorcycle, removes the memory card on which the image information is recorded from the drive recorder, and stores the image information recorded on the memory card. Images are read and read by an external device such as a personal computer.

JP 2008-221969 A Japanese Patent Laid-Open No. 2008-221970 JP 2008-225735 A JP 2008-225976 A JP 2008-225977 A JP 2008-226075 A JP 2008-257616 A JP 2008-257617 A JP 2008-257618 A

  As described above, when the image is confirmed, the memory card is removed from the drive recorder and this memory card is read by the external device. However, the external device may not have hardware for reading the memory card. Yes, it is convenient that the memory card can be accessed from the external device by connecting the drive recorder itself to the external device.

  Conventional drive recorders are used in vehicles and are used to check images in a memory card connected to an external device, whether shooting with a camera and detection of acceleration are necessary. Therefore, it is impossible to determine whether it is unnecessary to take a picture with the camera and detect the acceleration.

  Therefore, if the camera is set to automatically start shooting and acceleration detection when the accessory power supply is turned on when the vehicle is mounted, the drive recorder will start shooting and acceleration detection when connected to an external power supply that supplies power. In order to start the operation, it is troublesome for the user to manually operate the drive recorder.

  Therefore, the present invention has been developed to improve the above-described problems, and an object of the present invention is to provide a drive recorder that can perform an operation suitable for a use situation.

  The problem-solving means of the present invention includes a camera installed in a vehicle, an acceleration sensor capable of detecting at least biaxial accelerations in the front, rear, left and right directions of the vehicle, and a memory for storing an image photographed by the camera and acceleration detected by the acceleration sensor And a recorder-side cord that can be connected to a vehicle power source and that supplies power to the camera, the acceleration sensor, and the storage means, a 5-pin mini universal serial bus connector and a mini-pin at the end of the recorder-side cord When one of the universal serial bus re-stables is provided and a voltage signal is input from the ID pin, the camera and acceleration sensor are driven to store image information in the storage means, and no voltage signal is input from the ID pin Is characterized in that the camera and acceleration sensor are not driven and image information is not stored in the storage means. .

  According to the drive recorder of the present invention, when a voltage signal is input from the ID pin, the drive recorder performs the normal operation of driving the camera and the acceleration sensor to store the image information in the storage means, and the voltage from the ID pin. If there is no signal input, the camera and acceleration sensor are not driven and the image information is not stored in the storage means, so whether the drive recorder itself is mounted on the vehicle and shooting and acceleration detection are required, It is possible to determine whether the camera is connected to an external device such as a personal computer and does not require shooting and acceleration detection, and can perform an operation in accordance with the usage status.

  Therefore, shooting is automatically started when mounted on a vehicle without incurring a situation in which shooting is started by connection to an external device and a file containing important image information is updated to a new file. It is possible to avoid forgetting to shoot.

  Further, since the drive recorder itself performs an operation suitable for the use situation, there is an advantage that it is not necessary for the user to manually select and control the operation of the drive recorder by manual operation, thereby reducing the burden on the user.

It is a front end side perspective view of the drive recorder in one embodiment. It is a rear-end side perspective view of the drive recorder in one embodiment. It is sectional drawing of the drive recorder in one Embodiment. It is a perspective view of the attachment in the case side mount in one embodiment. It is a perspective view of the vehicle side mount in one embodiment. It is a perspective view in the state where the rear end side cap of the drive recorder in one embodiment was opened. It is the disassembled perspective view which looked at the drive recorder in one embodiment from the lower part. It is a disassembled perspective view of the code | cord | chord which connects the drive recorder of one Embodiment to a vehicle power supply. It is a circuit diagram of the code | cord | chord which connects the drive recorder of one Embodiment to a vehicle power supply. It is a perspective view of the cord which connects the drive recorder of one embodiment to a vehicle power supply. It is the figure which showed the hardware constitutions of the drive recorder of one Embodiment. It is an example of the flowchart which shows a part of operation | movement in the drive recorder of one Embodiment. It is an example of the flowchart which shows a part of operation | movement in the drive recorder of one Embodiment.

  The present invention will be described below based on the embodiments shown in the drawings. As shown in FIGS. 1 to 8, the drive recorder D according to the embodiment includes a camera 2, an acceleration sensor 3 that can detect biaxial acceleration in the front, rear, left, and right directions of the vehicle, and images and accelerations captured by the camera 2. It comprises a storage device 4 as storage means for storing the acceleration detected by the sensor 3 and a control device 5 for controlling them. In this case, each of these units, that is, the camera 2, the acceleration sensor 3, and the storage device 4 are configured. The control device 5 is accommodated in one case 1 and attached to the two-wheeled vehicle via the case 1.

  The case 1 will be described in detail below. The case 1 includes a cylindrical case body 10 that accommodates a camera 2, an acceleration sensor 3, a storage device 4, and a control device 5 therein, and a handle of a two-wheeled vehicle provided at the lower portion of the case body 10. A case-side mount 11 that is attachable to and detachable from the vehicle-side mount 7 that grips the lens, a tip cap 12 that includes a photographing window 12a to close the tip opening of the case body 10, and a rear end opening of the case body 10 that is closed. The rear end cap 13, the opening 14 provided in the lower part of the case body 10, and a partition member 19 that closes the opening 14 are configured.

  The case-side mount 11 includes a holding ring 11a that holds the outer periphery of the case body 10, a ring nut 11b that is rotatably provided at the lower part of the holding ring 11a, and an attachment 11c that includes a pair of claws 11d and 11d. And a disk 11e that is provided on the top of the attachment 11c and has a screw part on the outer periphery thereof and is screwed to the top ring-shaped ring nut 11b. When the disk 11e is screwed to the deepest depth of the ring nut 11b, the ring nut 11b becomes non-rotatable with respect to the holding ring 11a. The child 11c is allowed to rotate in the lateral direction with respect to the case main body 10, and can be fixed in an arbitrary direction.

  As shown in FIGS. 1 and 2, the vehicle-side mount 7 is integrated with the mount attaching / detaching portion 7 a that holds the mount 11 c of the case-side mount 11 and the mount attaching / detaching portion 7 a and holds the handle H of the motorcycle. A gripping portion 7b is provided. The vehicle-side mount 7 can rotate around the axis about the handle H, and the mounting posture with respect to the handle H can be adjusted. The mount attaching / detaching portion 7a is a U-shaped socket, and by inserting the attachment 11c of the case side mount 11 from the side, the attachment 11c is held by the mount attaching / detaching portion 7a and integrated. When the main body portion 11a is completely inserted into the mount attaching / detaching portion 7a, the claws 11d, 11d engage with the claws 7c, 7c provided at the rear end of the mount attaching / detaching portion 7a, so that the vehicle side mount 7, the case side mount 11 is fixed. When the claws 11d and 11d are pressed to approach each other, the engagement of the mount attaching / detaching portion 7a with the claws 7c and 7c is released, so that the attachment 11c is pulled out from the mount attaching / detaching portion 7a to the side of the case. The mount 11 can be removed from the vehicle-side mount 7.

  The tip cap 12 is provided with a photographing window 12a so that the camera 2 can photograph the front side of the case 1 from inside the case 1, and in this case, a lens 15 is attached to the photographing window 12a. The cap 12 is sealed with a seal member (not shown). Therefore, in this case, the camera 2 is installed on the distal end side of the case body 10 with the photographing direction being the front side on the distal end side of the case body 10 and can be photographed via the lens 15.

  In addition, when the camera 2 is individually provided with a lens or when it is not necessary to install a lens, the photographing window 12a may be closed with a transparent plate formed of resin or glass. Further, in this case, the camera 2 is configured as a CCD camera including a CCD (charge coupled device, not shown). However, for example, a camera using a complementary metal oxide semiconductor (CMOS) is also used. It is also possible to use it.

  Since the vehicle-side mount 7 can rotate with respect to the handle H, and the case body 10 can rotate laterally with respect to the case-side mount 11, the mounting position of the case body 10 with respect to the motorcycle and the camera 2 The shooting direction can be arbitrarily adjusted, and the camera 2 can shoot a range that the user wants to shoot.

  The rear end cap 13 is hinged to the rear end opening of the case main body 10 so that the rear end opening of the case main body 10 can be opened and closed as shown in FIGS. .

  Further, the rear end cap 13 includes a display unit 17 and an operation button 18. The display unit 17 can display the setting status of the function of the drive recorder D and information necessary for the operation. Yes. Further, various settings on the function of the drive recorder D can be performed by the operation of the operation buttons 18 by the user.

  An annular packing 13 a is attached to the outer periphery of the rear end cap 13. When the rear end opening of the case main body 10 is closed with the rear end cap 13, the packing 13 a is in close contact with the inner periphery of the opening end of the case main body 10. Thus, entry of water or dust into the case body 10 can be prevented. When the case main body 10 is closed with the rear end cap 13, the case main body 10 is hooked on a hook receiving portion 10 a provided at the upper end of the case main body 10 with a hook 13 b hinged to the upper portion of the rear end cap 13. The rear end cap 13 can be fixed to the rear end opening.

  Note that an insertion slot 31 into which an SD memory card 33 that constitutes a part of the storage device 4 is inserted is provided at the rear end of the case body 10, and when the SD memory card 33 is inserted into the insertion slot 31, the card The connector 32 is connected.

  Subsequently, a substantially rectangular opening 14 is provided in the lower part of the case body 10, and the opening 14 is closed by a partition member 19. The partition member 19 includes a small window 19a. The power supply terminal 6 faces the small window 19a, and the power supply terminal 6 can be accessed from the outside through the small window 19a. . A speaker 20 is fixed to the partition member 19, and the speaker 20 can generate a warning sound according to a command from the control device 5.

  The small window 19a is surrounded by an annular groove 19b, and an annular packing 21 is fitted in the annular groove 19b.

  The power source terminal 6 is connected to a cord side terminal 23c provided at the end of the recorder side cord C1, and the recorder side cord C1 is connected to a power source side cord C2 connected to a vehicle power source. When the accessory power source is turned on, power is supplied from the vehicle power source to the power source terminal 6. The code referred to in the present invention is composed of a recorder side code C1 and a power source side code C2.

  As described above, in the drive recorder D of the present embodiment, the power supply terminal 6 is provided in the lower portion of the case body 10, and the power supply terminal 6 and the cord side terminal 23 c can be connected even during rainy weather. Since the chance of the connection portion being exposed to rainwater can be reduced, the reliability and practicality of the drive recorder D can be improved, and further the life of the drive recorder D can be improved.

  In this case, the power terminal 6 is composed of six pins and is a male terminal, and the cord-side terminal 23c is composed of six female pins into which the pins are inserted. And this cord side terminal 23c is hold | maintained at the connector 23 which can be fitted to the small window 19a provided in the edge part of the code | cord | chord main body 22 of the recorder side code | cord | chord C1, This connector 23 is a base part facing the packing 21. 23a and a distal end portion 23b that rises from the base portion 23a and is inserted into the small window 19a and holds the cord side terminal 23c. One of the female pins of the cord side terminal 23c is a dummy, and one of the pins of the power supply terminal 6 is also a dummy.

  As described above, the recorder-side cord C1 is connected to the power supply terminal 6 and integrated with the case 1 as described later, and extends from the lower part of the case body 10 outward. If this is not supported at all, the recorder-side cord C1 is vibrated by vibration during traveling of the two-wheeled vehicle, and a large bending stress acts repeatedly on the attachment portion of the cord body 22 to the base portion 23a of the connector 23. Therefore, there is a risk that deterioration will be accelerated. Therefore, in this drive recorder D, as shown in FIG. 6, a hook-shaped cord holding portion 11f for holding the recorder-side cord C1 is provided on the side portion of the holding ring 11a in the case-side mount 11. By holding the recorder-side code C1 with the code holding section 11f, it is possible to suppress a large bending stress from being repeatedly applied to the recorder-side code C1, and to suppress deterioration in the recorder-side code C1, thereby reducing the drive recorder D. The service life of the battery can be made long. Since the cord holding portion only needs to be provided in the case 1, for example, the case main body 10 may be provided in addition to the case side mount 11, and not only the recorder side cord C1 but also the power source side cord C2 may be provided. You may make it hold | maintain. Furthermore, the shape of the cord holding portion 11f is not limited to the hook shape described above as long as it can hold the recorder side cord C1 or the power source side cord C2.

  And in the drive recorder D of this Embodiment, it is used in order to supply electric power to the camera 2, the acceleration sensor 3, and the memory | storage means 4 accommodated in the case 1, and there exists a possibility that it may be shaken by a vehicle body vibration. The cords are a recorder side cord C1 and a power source side cord C2 connected thereto, and the number of cords is smaller and the chance of cord damage is reduced as compared with the conventional drive recorder, and the recorder side cord C1 or the power source side cord is reduced. Since C2 is held by the cord holding portion 11f provided in the case 1, the recorder side cord C1 and the power source side cord C2 connected thereto are not greatly shaken during the vibration of the vehicle body. Deterioration of C1 and the power supply side cord C2 connected thereto is suppressed.

  Thus, since the deterioration of the recorder side cord C1 and the power source side cord C2 connected to the recorder side cord C1 can be suppressed, the problem that the replacement of the cord is frequent and the maintenance cost increases is also improved.

  Returning, the recorder-side cord C1 includes a cord body 22 having five conductors (not shown) therein, a cord-side terminal 23c provided at one end of the cord body 22, and a terminal provided at the other end of the cord body 22. A 5-pin mini universal serial bus (miniUSB) receivable 24, and the pins of the mini universal serial bus receivable 24 are connected to the corresponding female pins of the cord side terminal 23c via the five conductors, respectively. Yes. The above-described mini-universal serial reusable 24 includes a power pin 24a, an ID pin 24d, a GND pin 24e, and two signal pins 24b and 24c, which are connected to a vehicle power source via a power-side cord C2 described later. I have. The mini universal serial bus reusable 24 may use either the A type or B type standard.

  Further, as shown in FIGS. 8 and 9, the power supply side cord C2 is connected to two terminals 26 and 27 connected to a vehicle power supply provided at one end and a mini universal serial bus reusable 24 provided at the other end. A 5-pin mini universal serial bus connector 25 as a connectable terminal, a step-down DC / DC converter 28 provided in the middle, and terminals 26 and 27 are connected to input terminals 28a and 28b of the DC / DC converter 28, respectively. Two conducting wires 29a and 29b, a conducting wire 30a for connecting the output terminal 28c of the DC / DC converter 28 to the power supply pin 25a and the ID pin 25d of the mini universal serial bus connector 25, and a GND pin 28d of the DC / DC converter 28. And a conductor 30b for connecting to the GND pin 25e of the mini universal serial bus connector 25. It is configured Te. The two signal pins 25b and 25c of the mini universal serial bus connector 25 are not connected anywhere and are not used. In this embodiment, the recorder side code C1 is provided with the mini universal serial bus reusable 24, and the power source side code C2 is provided with the mini universal serial bus connector 25. The code C1 may be provided with a mini universal serial bus connector, and the power supply side code C2 may be provided with a mini universal serial bus reusable.

  The DC / DC converter 28 is provided to step down the 12V vehicle power source to the operating voltage of the drive recorder D so that the vehicle power source can be used as the power source of the drive recorder D. Note that when the drive recorder D operates with the vehicle power supply voltage, the DC / DC converter 28 can be eliminated.

  Further, a coupler 40 having a cylindrical shape and having a screw portion on the inner periphery is rotatably provided on the outer periphery of the mini universal serial bus resectable 24, and the coupler 40 is also provided on the outer periphery of the mini universal serial bus connector 25. A socket 41 that is screwed into the inner periphery is provided. When the coupler 40 and the socket 41 are screwed together, the mini universal serial bus reusable 24 and the mini universal serial bus connector 25 remain firmly connected. These connecting portions are accommodated in the coupler 40 so as not to receive interference from rainwater, dust, or the like.

  Further, as shown in FIG. 10, a pair of binding bands B and strings can be inserted on the outer periphery of the mini universal serial bus reusable 24 and the outer periphery of the mini universal serial bus connector 25, respectively, as shown in FIG. Through holes 42 and 43, so that the mini-universal serial bus reusable 24 and the mini-universal serial bus connector 25 can be fixed to the frame, handle, etc. of the motorcycle using the binding band B or the like. It has become.

  In this way, by setting the through holes 42 and 43, one or both of the mini universal serial bus reusable 24 and the mini universal serial bus connector 25 can be fixed to any place of the motorcycle. The serial bus reusable 24 and the mini universal serial bus connector 25 can be reliably prevented from colliding with each part of the two-wheeled vehicle due to vibration during the two-wheeled vehicle travel, and the deterioration of the drive recorder D can be suppressed. The lifetime can be made long.

  Furthermore, since one or both of the mini universal serial bus reusable 24 and the mini universal serial bus connector 25 can be fixed to any place of the motorcycle, the recorder side cord C1 and the power source side cord connected thereto C2 is not greatly shaken during the vibration of the vehicle body, and deterioration of the recorder side cord C1 and the power source side cord C2 connected thereto is suppressed. As described above, since the deterioration of the recorder side cord C1 and the power source side cord C2 connected to the recorder side cord C1 is suppressed, the problem that the cords are frequently exchanged and the maintenance cost is increased is also improved.

  Further, by setting the through holes 42 and 43, one or both of the mini universal serial bus reusable 24 and the mini universal serial bus connector 25 can be easily fixed to an arbitrary place of the motorcycle. Mountability will also be improved. Since the mini universal serial bus reusable 24 and the mini universal serial bus connector 25 are connected and used, through holes 42 and 43 may be provided in either one of them.

  Returning, after inserting the tip 23b of the connector 23 in the recorder side cord C1 into the small window 19a to connect the power terminal 6 and the cord side terminal 23c, the holding plate 16 screwed to the partition member 19 is used. The connector 23 is fixed to the partition member 19 by pressing the base portion 23a from below, and the recorder-side cord C1 is integrated with the case 1.

  At that time, since the upper surface of the base 23a of the connector 23 is in close contact with the packing 21, the space between the partition member 19 which is a part of the case 1 and the connector 23 is tightly sealed, so that water and dust can enter from the small window 19a. The reliability and practicality of the drive recorder D can be further improved without exposing the connecting portion between the power supply terminal 6 and the cord-side terminal 23c to rainwater even when traveling in the rain. In addition, the life of the drive recorder D can be further extended.

  In addition, after fixing the connector 23 in this way, the decorative plate 44 is fitted to the opening 14 and the opening 14 is covered by screwing, so that the connection portion between the partition member 19 and the connector 23 is provided. It hides and improves the appearance of the drive recorder D. In addition, the decorative board 44 is provided with a plurality of long holes not shown, and consideration is given so as not to block the sound generated from the speaker 20.

  The power supply terminal 6 is connected to a control device 5 provided in the case body 10. The control device 5 is connected to the camera 2, the acceleration sensor 3, the card connector 32, the display unit 17, and the operation buttons 18 via an interface (not shown), and the power supply terminal 6 is connected to the camera 2, acceleration via the control device 5. Power can be supplied to the sensor 3, the connector 32, the display unit 17, and the operation button 18.

  For example, as shown in FIG. 11, the control device 5 includes a CPU (Central Processing Unit) 51, a RAM (Synchronous Dynamic Random Access Memory) 52 that provides a storage area for the CPU 51, a camera 2, and an acceleration sensor 3. , An interface 54 connected to the display unit 17 and the operation button 18, an application executed by the CPU 51 for performing processing necessary for controlling the camera 2, the acceleration sensor 3 and the storage device 4 to function as the drive recorder D A ROM (Read Only Memory) 55 for storing a program such as a system is connected to the CPU 51, RAM 52, ROM 55, interface 54, and card connector 32. And a bus 53. The storage device 4 includes a card connector 32 and an SD memory card 33, and the storage means includes the control device 5 and the storage device 4.

  Subsequently, the acceleration sensor 3 may basically be any sensor that can detect the acceleration of the front, rear, left, and right axes of the two-wheeled vehicle. A three-axis acceleration sensor that can detect the acceleration may be used. As the acceleration sensor 3, specifically, for example, a piezoelectric type, a semiconductor piazo resistance type, a capacitance type, and other various acceleration sensors can be used.

  The acceleration sensor 3 detects the acceleration of the front, rear, left and right of the two-wheeled vehicle at a predetermined sampling cycle, for example, a cycle of 10 ms (milliseconds), and outputs an acceleration signal that is an analog voltage signal. The acceleration signal is converted into a digital signal and input to the control device 5.

  On the other hand, the camera 2 continuously captures this imaging range, converts the captured image into an electrical signal, and outputs it to the control device 5. Note that images are interpreted in a broad sense, and images include moving images as well as still images.

  As shown in the example of the flowchart of FIG. 12, the camera 2 continues shooting, the acceleration sensor 3 continues to detect acceleration (step S <b> 1), and the control device 5 detects the image information from the camera 2 and the detection of the acceleration sensor 3. When the received acceleration information is received, the acceleration information at the time when the image information is obtained, the date and the time are associated with each other (step S2), and this is stored in the RAM 52 or the SD memory card 33 once. When the image information for the preset shooting time is accumulated, all the image information obtained after the association is completed and one file is generated (steps S3 and S4). Is stored in the SD memory card 33 through the card connector 32 (step S5). Thereafter, when image information for the shooting time is accumulated, a new file is generated in the same procedure. As described above, the control device 5 sequentially generates the files and stores them in the SD memory card 33. When the SD memory card 33 stores the above file with the full storage capacity, it starts from an old file other than the file whose overwrite is prohibited. Delete in order and remember the new file.

  This operation is started when the accessory power supply of the motorcycle is turned on and the power supply terminal 6 is turned on, and is continuously repeated until the accessory power supply is turned off or the acceleration detected by the acceleration sensor 3 exceeds the threshold value. To be done.

  More specifically, the mini universal serial bus reusable 24 of the recorder side code C1 is connected to the vehicle power supply, and is connected to the mini universal serial bus connector 25 of the power side code C2 whose voltage signal is input to the ID pin 25d. When the accessory power supply is turned on, the control device 5 applies a voltage to one of the pins of the power supply terminal 6 connected to the ID pin 25d of the mini universal serial bus connector 25 via the recorder-side cord C1. It is detected that a signal is input, shooting is started by the camera 2, acceleration is detected by the acceleration sensor 3, a file is generated and stored in the SD memory card 33, and each unit functions as a drive recorder D.

  On the other hand, when the mini universal serial bus reusable 24 of the recorder side code C1 is connected to a UBS code mini universal serial bus connector connected to an external device such as a personal computer (not shown), Since no voltage signal is input to the ID pin of the mini universal serial bus connector, the control device 5 is connected to the ID pin 24d of the mini universal serial bus resectable 24 even when power is supplied to the power supply terminal 6. Since no voltage signal is input to one of the pins of the power supply terminal 6, neither the camera 2 nor the acceleration sensor 3 is operated, and the SD memory card 33 is operated as an external storage device of the personal computer. The file on the SD memory card 33 can be operated on the side.

  That is, according to the drive recorder D of the present embodiment, whether the drive recorder D itself is mounted on a vehicle and is in a situation where shooting and acceleration detection are necessary, or is connected to an external device such as a personal computer. It is possible to determine whether the acceleration detection is unnecessary and to perform an operation according to the use situation.

  Therefore, shooting is automatically started when mounted on a vehicle without incurring a situation in which shooting is started by connection to an external device and a file containing important image information is updated to a new file. It is possible to avoid forgetting to shoot.

  In this way, since the drive recorder D itself performs an operation suitable for the use situation, there is no need for the user to bother to select and control the operation of the drive recorder D by manual operation, and there is an advantage that the burden on the user can be reduced. is there.

  The shooting time for generating one file can be selected by the user within a certain shooting time width according to the user's needs. For example, 15 minutes, 30 minutes, 60 minutes, and 120 minutes. Thus, it can be set by specifying the shooting time in one file. That is, for example, when the shooting time is set to 15 minutes, the control device 5 stores the image information for the shooting time associated with the acceleration information and the date and time when the image information shot by the camera 2 is accumulated for 15 minutes. A single file is generated as a collection of information and stored in the SD memory card 33.

  Since the shooting time for generating one file can be changed in this way, it is possible to specify a shooting time that matches the running time and obtain image information that meets the user's needs. . In addition, since it is possible to specify a shooting time that matches the travel time, the user can obtain a file containing seamless image information without interruption.

  Further, as shown in the example of the flowchart of FIG. 13, the control device 5 includes two-axis accelerations of the front and rear, left and right of the two-wheeled vehicle output from the acceleration sensor 3, and threshold values set in advance corresponding to the respective accelerations. (Step S6), if one of the front, rear, left and right accelerations detected by the acceleration sensor 3 exceeds the above threshold, and if the condition is fulfilled, the time when the condition is fulfilled, in this case Shooting and acceleration detection are continued for a predetermined time, for example, 10 seconds from the time when the acceleration exceeds the threshold (step S8), and a file is generated regardless of the set shooting time (step S9). The generated file is stored in the memory card 33 (step S10), and overwriting of the file is prohibited (step S11). It terminates all processing in the drive recorder D such time detection and file generation turns off the power to the drive recorder D (step S12). The control device 5 constantly monitors the acceleration, and when it is determined in step S6 that the acceleration exceeds the threshold value, the subsequent processing is executed as interrupt processing. In addition, a file that has been subjected to the overwrite prohibition process is not automatically updated by the subsequent use of the drive recorder D, and is replaced with another file by the drive recorder D itself unless the overwrite prohibition process is canceled manually. There is no such thing. Specifically, for example, when writing a new file to the SD memory card 33, if the unused capacity for storing the new file in the SD memory card 33 is insufficient, the file attribute is confirmed. Then, it is only necessary to delete a file that is not overwritten and has an old creation date and store the new file.

  Therefore, when an accident occurs during the traveling of the motorcycle and an acceleration exceeding the threshold is detected, the control device 5 is photographed before the accident in the image information photographed for 10 seconds after the accident. If there is image information before being filed, in addition to this, these are stored in the SD memory card 33 as a set of files. Therefore, image information taken over a long period of time from the occurrence of the accident to the time after the accident is left in the storage device 4 as a single file, so that the entire accident can be confirmed and the cause of the accident can be easily identified. In addition, important image information that can identify the cause of the accident is not lost.

  In addition, the above file containing image information taken at the time when the acceleration exceeds the threshold value is prohibited from being overwritten, so when resuming shooting after an accident, it will not be overwritten and lost. It is possible to reliably prevent the loss of important image information that can identify the cause.

  Furthermore, since image information other than when an accident occurs is also stored in the storage means, the user can refer to image information other than the accident, and can improve his own driving skills and enjoy the scenery around the road on which he traveled It can contribute to such use.

  In addition, after shooting for a predetermined time after the accident occurs, the drive recorder D is turned off and no processing such as shooting, acceleration detection, file generation, and file storage is performed. It is possible to reliably leave a file including image information obtained by photographing the whole story in the storage means.

  In the drive recorder D of the present embodiment, the control device 5 determines whether or not the acceleration exceeds the threshold value. The acceleration sampled by the acceleration sensor 3 at a predetermined sampling period continues for a predetermined number of times. When the threshold value is exceeded, it is determined that the acceleration exceeds the threshold value, and a file is generated and stored in the storage device 4. That is, on the condition that the acceleration exceeds a certain time obtained by adding a predetermined number of times to the sampling period with the threshold value, a file including image information captured for a predetermined time from the time when the condition is satisfied is generated and stored. A file is stored in the device 4. As described above, the condition for generating a file at the time of an accident may be that not only the acceleration exceeds the threshold value but also the acceleration exceeds the threshold value for a certain time. In addition, the above-mentioned fixed time does not indicate that the fixed time cannot be changed and is always constant, and is fixed for convenience in order to distinguish it from a predetermined time that is a shooting time after the condition is satisfied, As will be described later, it can be changed by user settings.

  If the acceleration exceeds the threshold value even once, it may be judged as an accident when suddenly a large acceleration is detected due to noise or disturbance during driving. On the condition that it exceeds the threshold for a certain time, there is an advantage that an accident can be detected with high accuracy without making a judgment error due to noise or disturbance.

  Although there is an upper limit in terms of the sampling period and the fixed time, the above-mentioned predetermined number of times and threshold value can be set by the user. In this way, the user can change the predetermined number of times and the threshold according to the road condition and road surface condition to be driven from now on, the specification in the vehicle in which the drive recorder D is installed, and the driving habit. The control device 5 can make a determination suitable for the specifications of the vehicle in which the drive recorder D is installed, the habit of driving, the road conditions and road conditions on the road.

  Furthermore, in the drive recorder D of the present embodiment, as described above, after attaching the case 1 to the handle H or the like, the user operates the operation button 18 to move the acceleration sensor 3 to the vehicle while the saddle riding vehicle is stopped. The initial value of acceleration is detected by the acceleration sensor 3 with this mounting posture, and this is stored in the control device 5 as offset acceleration, and the offset sensor is removed from the acceleration detected by the subsequent acceleration sensor 3 to obtain an acceleration sensor. The influence of gravity contained in the acceleration detected by the acceleration sensor 3 is removed depending on the mounting posture of the vehicle 3 on the vehicle.

  Therefore, in the drive recorder of this embodiment, the acceleration of the vehicle generated depending on the traveling of the vehicle can be accurately detected regardless of the mounting posture of the acceleration sensor 3, and the occurrence of the accident can be accurately detected. be able to.

  In addition, if the detection axis of the acceleration sensor 3 is two axes, the acceleration in each direction of the vehicle can be accurately determined without mounting it in the front-rear, left-right direction of the vehicle, and if it is three-axis, without being accurately oriented in the front-rear direction Can be detected, so that the drive recorder D can be easily installed on the vehicle.

  Further, the drive recorder D is provided with a sub power source 35 in the case 1, and as shown in the example of the flowchart of FIG. 13, when power supply from the vehicle power source is interrupted during driving (step S7), Even if the acceleration does not exceed the threshold value, the control device 5 is supplied with power from the sub power source 35, takes 10 seconds, detects acceleration (step S8), generates a file (step S9), and writes to the SD memory card 33. The operation similar to that at the time of the accident of storing (step S10) is performed. That is, in the drive recorder D of the present embodiment, the power supply from the vehicle power source is interrupted, either when the acceleration detected by the acceleration sensor 3 exceeds the threshold or when the acceleration exceeds the threshold for a certain time. If the condition is fulfilled on condition that either one of the conditions is satisfied, the photographing and the acceleration detection are continued for a predetermined time, in this case 10 seconds, from the time when the condition is fulfilled. A file is generated regardless of time and the generated file is stored in the SD memory card 33 and overwriting is prohibited (steps S10 and S11), and further shooting, acceleration detection, and file generation are performed. All the processes in the drive recorder D are terminated, and the power of the drive recorder D is turned off (step S12).

  Specifically, even if the acceleration does not exceed the threshold value, the recorder side cord C1 or the power source side cord C2 connected to the vehicle power source is disconnected due to the two-wheeled vehicle touching or overturning, or the accessory power source is turned off. Then, since the power supply from the vehicle power supply is cut off, the control device 5 captures the image information photographed over the subsequent 10 seconds from the occurrence of the situation before taking the file as a file before the occurrence of the situation. Are stored in the SD memory card 33 as a set of files, and the drive recorder D is turned off.

  Therefore, in addition to detecting an accident based on acceleration, even if a situation occurs in which some abnormality occurs in the vehicle and the power supply is interrupted, image information captured before and after the occurrence of the situation is stored as a single file. No. 4 will be left, so that the entire situation can be confirmed.

  And even when the power supply is interrupted, files are generated and stored, so even if accident detection based on acceleration cannot be performed, the possibility of detecting a two-wheeled vehicle falling or contact accident is increased, and the accident is accurately performed. The image information at the time of the accident can be stored by recognizing the occurrence of the accident.

  In addition, since the above file is overwritten, when the power supply is reunited and shooting is resumed, it will not be overwritten and lost, and image information that may have caused an accident It can be surely prevented from being lost.

  In addition, after shooting for a predetermined time after the power supply is cut off, the drive recorder D is turned off and no processing such as shooting, acceleration detection, file generation and file storage is performed. A file containing image information that may have caused an accident can be reliably left in the storage means.

  The sub power supply 35 stores electric power necessary for photographing with the camera 2 for 10 seconds or more, detection of acceleration, file generation, and storage in the SD memory card 33. Therefore, it is possible to reliably leave the file including the images taken before and after the accident and confirming the entire accident in the storage device 4.

  Furthermore, if the power supply from the vehicle power supply is interrupted during driving, a file is generated and stored in the SD memory card 33. Therefore, the image is taken from the end of the previous storage to the SD memory card 33 until the power supply is interrupted. Even if the user has stopped the saddle vehicle and turned off the accessory power, even if the image information is small and the amount of information is small and the file size is smaller than the file size set as described above, the drive is turned off. If the power supply from the vehicle power supply is interrupted, the power supply from the vehicle power supply is interrupted during driving. Therefore, the control device 5 receives the power supply from the sub power supply 35 for 10 seconds as before. Operations such as shooting, acceleration detection, file generation, and storage in the SD memory card 33 are performed. Therefore, even when the file size is not enough, a file can be generated and stored in the storage device 4 without user operation at the end of traveling, which is convenient and does not cause omission of saved captured images.

  In addition, there are two threshold values that can be registered in the drive recorder D for each of the biaxial accelerations. One of the thresholds is detected when an accident occurs, the photographing of the camera 2 is stopped, a file is generated, and the SD memory card 33 is generated. However, an acceleration that is lower than this threshold but may lead to an accident can be set as a warning threshold with an arbitrary value that the user faces.

  When the acceleration corresponding to the warning threshold value exceeds the warning threshold value, the control device 5 generates a warning sound from the speaker 20 to inform the user who is driving the vehicle that dangerous acceleration has been detected. Therefore, in the drive recorder D in the present embodiment, a warning sound is generated from the speaker 20 when the warning threshold value is exceeded. Therefore, when the user listens to the warning sound, his / her driving becomes rough or the speed is increased. It is possible to realize that it is too much and prevent accidents from occurring.

  Note that in determining whether the acceleration exceeds the warning threshold, the above-described determination is made by removing the influence of gravity depending on the mounting posture of the case 1 described above. Can be warned.

  As described above, according to the drive recorder D of the present embodiment, when a voltage signal is input from the ID pin, the drive recorder D drives the camera and the acceleration sensor to store the image information in the storage means. When the normal operation to be stored is performed and no voltage signal is input from the ID pin, the camera and the acceleration sensor are not driven and the image information is not stored in the storage means. Determine whether you are in a situation that requires detection or whether you are connected to an external device such as a personal computer and do not require shooting and acceleration detection, and perform actions that match your usage conditions Can do.

  Therefore, shooting is automatically started when mounted on a vehicle without incurring a situation in which shooting is started by connection to an external device and a file containing important image information is updated to a new file. It is possible to avoid forgetting to shoot.

  Further, since the drive recorder D itself performs an operation suitable for the use situation, there is an advantage that the user does not have to bother to select and control the operation of the drive recorder D by manual operation, and the burden on the user can be reduced.

  Further, when all the hardware such as the camera 2, the acceleration sensor 3, the storage device 4, and the control device 5 necessary for functioning as the drive recorder D is accommodated in the case 1, the installation in the vehicle is easy. The mounting property on the vehicle can be improved.

  Further, when all of the hardware is accommodated in the case 1, it is convenient to carry the drive recorder D and can be easily attached to and detached from a vehicle such as a saddle-riding vehicle or an automobile. The drive recorder D can be removed and carried around, and the drive recorder D can be prevented from being stolen.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is of course not limited to the details shown or described.

The present invention can be used for a drive recorder that stores a traveling state of a vehicle.

DESCRIPTION OF SYMBOLS 1 Case 2 Camera 3 Acceleration sensor 4 Storage device 5 as storage means Control device 6 Power supply terminal 7 Vehicle side mount 7a Mount attaching / detaching portion 7b Grip portion 7c Claw 10 Case body 10a Hook receiving portion 11 Case side mount 11a Holding ring 11b Ring nut 11c Attachment 11d Claw 11e Disk 11f Cord holding part 12 End cap 12a Shooting window 13 Rear end cap 13a Packing 13b Hook 14 Opening 15 Lens 16 Holding plate 17 Display part 18 Operation button 19 Partition member 19a Small window 19b Annular groove 20 Speaker 21 Packing 22 Cord body 23 Connector 23a Base portion 23b Tip portion 23c Cord side terminal 24 Mini universal serial bus reusable 24a, 25a Power supply pins 24b, 24c, 25b, 25c Signal pins 24d, 25d ID pins 24e, 2 5e GND pin 25 Mini universal serial bus connector 26, 27 Terminal 28 DC / DC converters 28a, 28b Input terminal 28c Output terminal 28d GND pins 29a, 29b, 30a, 30b Conductor 31 Insert port 32 Card connector 33 SD memory card 40 Coupler 41 Socket 42, 43 Through hole 44 Decorative plate 50, 51 Ear ring B Binding band C1 Recorder side cord C2 Power source side cord H Handle

Claims (2)

Connectable to a vehicle power supply, a camera installed in the vehicle, an acceleration sensor capable of detecting at least two-axis acceleration of the front, rear, left and right of the vehicle, a storage means for storing an image photographed by the camera and an acceleration detected by the acceleration sensor A drive recorder comprising a camera, an acceleration sensor, and a recorder-side cord for supplying power to the storage means, and one of a 5-pin mini universal serial bus connector and a mini universal serial bus resectable at the end of the recorder side cord When the voltage signal is input from the ID pin, the camera and the acceleration sensor are driven to store the image information in the storage means. When the voltage signal is not input from the ID pin, the camera and the acceleration sensor are driven. A drive recorder characterized in that image information is not stored in the storage means. A power supply side cord connected to the vehicle power supply is provided, connected to one of the mini universal serial bus connector and mini universal serial bus reusable provided at the end of the recorder side cord, and the power supply voltage is output from the ID pin. 2. The drive recorder according to claim 1, wherein the other of the mini universal serial bus connector and the mini universal serial bus resectable is provided at an end of the power supply side cord.

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