JP7109802B2 - drive recorder and program - Google Patents

Description

The present invention relates to an electronic device having a function of recording generated data, an information system for processing the recorded data, and a program for these.

Electronic devices exist that have the ability to generate and record data. For example, there is an electronic device that records data acquired by a sensor or the like in a medium such as a detachable nonvolatile memory such as an SD card. Also, for example, electronic devices such as GPS loggers that receive radio waves from GPS and record information about the current position on a medium, and drives that record vehicle conditions such as vehicle acceleration on a medium along with video data captured by a camera. There are electronic devices such as recorders and electronic devices such as speed measuring devices that measure the speed of a ball or the swing speed of a bat or a golf club and record them on a medium. The data recorded on these media can be processed on the computer by removing it from the electronic device, bringing it to the place where the computer is, connecting it to the computer, copying the data to the computer, and referencing it. For example, the recorded data can be displayed as numerical values, graphs, etc., or data can be analyzed.

However, it takes time and effort to remove a medium such as an SD card from an electronic device, bring it to a computer, insert it into the computer, and transfer data. There is the problem of forgetting to put it back on the electronic device and not being able to use it when it matters most.

In order to solve this problem, it is conceivable to build a wireless communication function in the electronic device and transfer data to a personal computer or the like by wireless communication. There is a problem that the product price becomes high.

To solve this problem, a digital camera has the same shape and electrical characteristics as a medium without being connected to a personal computer, and is equipped with a recording means similar to the medium. There is a product called an Eye-Fi (registered trademark) card that can automatically transfer photo data stored in this storage means to a personal computer via a wireless LAN (Non-Patent Document 1). The Eye-Fi (registered trademark) card is an SD memory card with a built-in wireless LAN function for connecting to the Internet. Just by setting the camera in the digital camera, the photographed data is automatically transferred to a preconfigured personal computer or various online photo services via a wireless LAN access point.

Fumitada Takahashi, "A New Era of Digital Cameras", Nikkei Electronics Nikkei Business Publications, June 15, 2009, No. 1006, pp.51-60

However, a data transfer device such as an Eye-Fi (registered trademark) card transmits files in a predetermined file format among stored files by wireless communication, and transmits files in a file format other than the predetermined file format by wireless communication. There is no configuration. For example, it is configured to transfer only jpg format data, which is one of image file formats, and mpg format files, which is one of moving image file formats.

Therefore, even if a device (medium) having such a data transfer function is set in a conventional electronic device that records in a file format other than this, there is a problem that the data cannot be transferred by wireless communication. there were.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve such problems, and provides an electronic device capable of transferring information generated by the electronic device by wireless communication even if the electronic device does not have a wireless communication function. intended to provide

In order to achieve the above object, an electronic device according to the present invention includes: (1) data having a function of transmitting, by wireless communication, a file in a predetermined file format among files stored in the storage means; An electronic device connectable to a transfer device, comprising connection means for connecting the data transfer device, and control means for storing a file in the predetermined file format in the storage means of the data transfer device, The control means is characterized by having a function of embedding information generated by the electronic device in the file of the predetermined file format.

In this way, since the information generated by the electronic device is embedded in the file of the predetermined file format, the data transfer device judges that the file is of the predetermined file format, and transmits the file by wireless communication. will be sent. Therefore, even an electronic device that does not have a wireless communication function can transfer information generated by the electronic device to the information system by wireless communication. Note that the data transfer device may have a function of transferring files in file formats other than the predetermined file format, and the present invention can be applied to devices that transfer files in all file formats.

(2) The data transfer device is configured to be compatible with a memory card standard, the connection means is for connecting a memory card conforming to the memory card standard, and the control means controls the file generating an image file or a moving image file as a file in a format, generating information not specified by the file format standard of the image file or moving image file as information generated by the electronic device, and converting the information into a file in the predetermined file format; It may be embedded and stored in the storage means.

In this way, the data transfer device can be connected instead of the memory card.

(3) The predetermined file format may be a file format with a predetermined extension.
(4) For example, as the configuration of (3), the predetermined extension may be any one of jpg, jpeg, bmp, tiff, mov, wmv, and avi.

In this way, the file can be reproduced and displayed as a still image or a moving image in the information system, and the information generated by the electronic device included in the file can be easily confirmed.

(5) The data transfer device is for transmitting only files in a specific folder by the wireless communication, and has a function of deleting the files already transmitted by the wireless communication from the storage means, The control means preferably stores the file of the predetermined file format in the specific folder, and stores a backup file of the stored file in a folder other than the specific folder.

In this way, for example, when the electronic device tries to use again for processing the information generated by the electronic device embedded in the file deleted from the storage means in the data transfer device by the data transfer device, A backup file can be referred to and used for processing. For example, even if a recording medium storing a file obtained by wireless communication from a data transfer device is lost or the file is deleted from the recording medium, the data can be transferred to the information system provided with the connection means. By connecting a transfer device, information generated by the electronic device can be reacquired from a folder other than the specific folder of the data transfer device.

The file to be backed up may be a file containing information generated by the electronic device, and this file may be one file or a plurality of files. This file may be added to an existing file, or may be created as a new file. Alternatively, for example, the file itself in the predetermined file format containing the information generated by the electronic device stored in the specific folder may be used. Also, it may be a file containing all information generated by the electronic device, or a file containing only an important part of the information.

(6) A configuration for performing the embedding when storing a file of a predetermined file format in the specific folder and determining whether or not to store the backup file in a folder other than the specific folder. should be In other words, it is not necessary to create backup files corresponding to all the files in the predetermined file format. For example, it is preferable to create backup files for only necessary information generated by the electronic device. For example, if the electronic device is an in-vehicle drive recorder, a backup file may be created only when a file in a predetermined file format containing acceleration information corresponding to the impact at the time of collision is stored. .

(7) The file of the predetermined file format has a file format identification area for identifying whether it is a file of the predetermined file format, and the information generated by the electronic device is identified in the predetermined file format. The function to be embedded in a file may be configured to store information generated by the electronic device in an area other than the file format identification area.

The data transfer device refers to the file format identification area to identify whether the file is in the specified file format. Then, the file is transmitted by wireless communication. Therefore, even an electronic device that does not have a wireless communication function can transfer information generated by the electronic device by wireless communication.

(8) The predetermined file format is a file format for storing information that can be visualized, and the control means embeds information generated by the electronic device into a file of the predetermined file format, and It is preferable that the information generated by is also generated as the visible information.

In this way, for example, information generated by the electronic device can be displayed as information that can be visualized by the information system. For example, by embedding the information generated by the electronic device in a file of image file format as a file format for storing visible information, and generating the information generated by the electronic device as the image data, If an image is displayed using image viewer software such as a personal computer, the information generated by the electronic device is included as visible information in the image. Information generated by the device can be checked. For example, you can easily check which file contains the necessary information by displaying images as thumbnails or a slide show on the destination computer, mobile phone, digital camera, etc. become.

(9) Assuming the configuration of (8), the information generated by the electronic device may be generated as character string information and a two-dimensional code as the visible information.

In this way, for example, in an information system, it is possible to display character string information as information that can be visualized. Also, the two-dimensional code can be read by a mobile device or the like, and at least part of the information generated by the electronic device can be easily transferred to the mobile device or the like.

(10) Assuming the configuration of (8) or (9), a display means is provided, and the control means generates at least part of the information displayed on the display means as the visible information. good.

In this way, at least part of the information displayed on the display means of the electronic device is displayed as visible information simply by opening the file with a viewer of the information system or the like. Therefore, the information displayed on the display means of the electronic device can be easily recalled by looking at the thumbnail display or the like, and it is possible to easily specify when the recorded information is included.

(11) In particular, on the premise of the configuration of (10), the visualizeable information is generated as information displayed in a display mode similar to that displayed on the display means when the visualizeable information is visualized. It should be configured to For example, it is preferable to generate a screen shot image of the screen displayed on the display means as the information that can be visualized. In particular, it is preferable that the display means performs segment display, and the control means generates image data visually recognized as the segment display as the visible information.

(12) Assuming the configurations of (8) to (11), the information generated by the electronic device is information that changes over time, and the predetermined file format is a video file format, As the visible information, information that changes with the passage of time may be generated as the visible information by synchronizing it with the passage of time of the moving image file.

In this way, it is possible to grasp the information generated by the electronic device at that point in time contained in the file simply by playing back the moving image file on the information system.

(13) The predetermined file format is a file format for storing audible information, and the control means embeds the information generated by the electronic device in the file of the predetermined file format, It is preferable that the information generated by the device is also generated as the audible information.

In this way, for example, information generated by the electronic device can be reproduced as information that can be made audible by the information system. For example, by embedding the information generated by the electronic device in a file of audio file format as a file format for storing audible information, and generating the information generated by the electronic device as the audio data, the transfer destination If you play the audio with audio playback software such as a personal computer, the audio contains information generated by the electronic device as audible information, and just by listening to the audio, you can hear the electronic information contained in the file. Information generated by the device can be checked.

(14) The predetermined file format is a format capable of storing position information, and an information system for processing files in the predetermined file format transmitted from the data transfer device by the wireless communication, wherein the data transfer The device acquires position specifying information, which is information for specifying a position at the time when the file is stored, based on the wireless reception state, and stores the acquired position specifying information in association with the file. The electronic device has a function of transmitting by wireless communication, the electronic device includes position detection means for detecting a current position, and the control means detects the position detected by the position detection means as information generated by the electronic device The information system generates location information of a location, and the information system includes location information specified based on the location specifying information associated with the file of the predetermined file format, and the electronic device detected by the location detection means. determining the position information to be stored in the predetermined file format based on the position information embedded in the file of the predetermined file format as the information generated by the above.

In this way, the position information specified based on the position specifying information acquired by the data transfer device and the information detected by the position detection means of the electronic device and generated by the electronic device are stored in the file of the predetermined file format. Since the position information to be stored in the predetermined file format is determined based on the position information of both of the embedded position information, the position information finally embedded in the file of the predetermined file format is can also be used as position information with high position accuracy. Note that, for example, a conventionally known method can be used as a method of calculating highly accurate position information from a plurality of pieces of position information.

(15) The function of the control means in the electronic device according to any one of (1) to (13) can be configured as a program to be implemented by a computer.

(16) Further, the information system is an information system that processes the file in the predetermined file format transmitted from the data transfer device by wireless communication, and extracts the embedded electronic device from the file in the predetermined format. The configuration may be characterized by having a function of retrieving the generated information and storing it as a separate file.

In this way, information generated by the electronic device can be recorded as a separate file. The separate file can also have a file format unique to the electronic device. For example, a file in a file format conventionally used by the electronic device may be used. By doing so, it is possible to acquire the file by wireless communication without changing the program in the information system from the conventional one.

(17) The information to be embedded in the file of the predetermined file format includes information on the transfer destination of the file, reads the information on the transfer destination, and transfers at least one of the file and the other file to the transfer destination. It is preferable to adopt a configuration having a transfer function.

By doing so, the information generated by the electronic device can be transferred to a predetermined transfer destination. For example, even if the transfer destination in the transfer device is fixed to a predetermined transfer destination, the file can be transferred to a transfer destination other than the predetermined transfer destination. In the case of this configuration, for example, the control means of the electronic device may perform a process of embedding information including transfer destination information of the file as information to be embedded in the file of the predetermined file format.

The information system functions of (18), (13), (15), and (16) can be configured as a program to be implemented by a computer.

According to the present invention, even an electronic device that does not have a wireless communication function can transfer information generated by the electronic device by wireless communication.

1 is a diagram showing the configuration of a radar detector that is a preferred embodiment of the present invention; FIG. 1 is a block diagram of a radar detector; FIG. It is a figure which shows the example of a display of a standby screen, a radar scope, and a GPS alarm. It is a figure which shows the example of a display of the warning screen in a radar wave warning function. 3 is a block diagram showing the configuration of a memory card; FIG. It is a flowchart which shows the flow of operation log data imaging processing. FIG. 4 is a diagram showing an example of display on a display unit; It is a figure which shows another embodiment of an electronic device. It is a figure which shows the example of a display to the display part of another embodiment. It is a figure which shows the example of a display to the display part of another embodiment.

1 and 2 show the configuration of a radar detector having a drive recorder function, which is a preferred embodiment of the electronic device of the present invention. This radar detector is provided with a ball joint portion 31 having a spherical surface on its bottom surface, and the ball joint receiving portion 33a provided on the upper part of the base 33 has a spherical surface receiving portion that receives the spherical surface. When applied, it moves within the movable range of the ball joint portion 31, and is fixed when no force is applied by hand. That is, the inner diameter of the spherical surface receiving portion of the ball joint receiving portion 33a is made smaller than the outer diameter of the spherical surface of the ball joint portion 31 to such an extent that the frictional resistance can be obtained. The pedestal 33 has a ball joint receiving portion 33a on the upper portion of a plate-shaped fixing portion 33b, and is fixed on the dashboard by sticking the bottom surface of the fixing portion 33b on the dashboard.

This radar detector, as shown in FIG. An infrared projector 21 for irradiating an infrared ray ahead of the vehicle and an exterior photographing camera 23 for photographing the front of the vehicle are mounted on the front side of the case body 1 (the side arranged in front of the vehicle (the windshield side)). Prepare. A microwave receiver 4 for detecting microwaves in the frequency band emitted by the velocity measuring device is arranged inside the front side. A display unit 5 , an alarm lamp 6 , an infrared communication device 7 , and a remote control receiver 16 are provided on the rear side of the case body 1 (on the side arranged toward the rear of the vehicle (user side (driver side)). A GPS receiver 8 is provided on the upper surface side inside the case body 1, and a battery is provided on the lower surface side inside the case body 1. Further, a memory card reader 13 is provided inside one side surface of the case body 1, and the A memory card slot 30 for inserting a memory card 14 into a memory card reader 13 is provided on one side of the case body 1. The other side is provided with a power switch 10 and a DC jack (not shown). It also contains a speaker 20 and an acceleration sensor 25. The acceleration sensor 25 is installed so as to detect acceleration in the longitudinal direction.

The display unit 5 is a 3-inch color dot matrix liquid crystal display of 320 dots wide by 240 dots long, and the display surface is the rear side of the case body 1 (the side arranged toward the rear of the vehicle (user side (driver side))). The height H of the rear side of the case body 1 on which the display section 5 is mounted is made larger than the height H0 of the other portions.
As shown in FIG. 2, the infrared communication device 7 transmits and receives data to and from a communication device having an infrared communication device such as a mobile phone 12 or the like.

The memory card reader 13 takes in data stored in the memory card 14 attached to the memory card reader 13 and writes the contents of the memory of the database 19 and the control unit 18 to the memory card 14 . More specifically, the data stored in the memory card 14 includes new target information (position information including longitude and latitude, type information, etc.), information on road signs for vehicles requiring caution, and new map data. If there is update information such as , the control unit 18 stores (downloads) the update information in the database 19 built in the apparatus, and updates the data in the database 19 .

The database 19 is a non-volatile memory (for example, EEPROM) inside the microcomputer of the control unit 18 or externally attached to the microcomputer. In the database 19, data and map data on fixed targets are registered at the time of shipment, and data on targets and map data added after that can be updated as described above. Data update can also be performed via the infrared communication device 7 .

The DC jack is for connecting a cigar plug cord (not shown), and is connected to a cigar socket of the vehicle via the cigar plug cord to receive power supply. The power supplied from the DC jack and the power supplied from the solar panel 2 are supplied to the battery and charged, and the power supplied from the DC jack, the power supplied from the solar panel 2, and the battery are supplied. Power is supplied to each part of the electronic circuit shown in FIGS.

The radio receiver 15 receives incoming radio waves of a predetermined frequency. A remote control receiver 16 performs data communication with a remote control (portable device: child device) 17 by infrared rays, and performs various settings for the device. The switch unit 3 is also connected to the control unit 18 (not shown) so that the same settings as the remote controller 17 can be performed. The remote controller 17 has a play button, a standby switching button, a setting button, a selection button, a cancel button, an enter button, and up, down, left, and right cross buttons.

The exterior photographing camera 23 is a CCD camera capable of photographing in visible light and infrared bands, and is internally connected to a USB port provided in the microcomputer of the control section 18 . The camera outside the vehicle 23 has a function of A/D-converting an image taken by the CCD camera and sending it to the control unit 18 as image data. This function has a configuration similar to that of a so-called USB camera. The control unit 18 determines whether or not the illuminance necessary for reading the road sign is insufficient from the brightness of the image data of the image captured by the CCD camera, and if the illuminance is insufficient, the infrared projector 21 is turned on. and irradiate the front of the vehicle with infrared rays.

The control unit 18 is a microcomputer having a main CPU, a sub CPU, a ROM, a RAM, a nonvolatile memory, an I/O, etc., and is connected to the respective units described above as shown in FIG. , and controls the above units to output predetermined alarms/messages and information. It should be noted that the basic configuration of these can be basically the same as the conventional ones. In this embodiment, the main CPU performs processing that is not specifically described.

The functions of the radar detector of this embodiment are stored in the EEPROM of the control unit 18 as programs to be executed by the computer of the control unit 18, and are realized by the computer of the control unit 18 executing the programs. Font data is stored in the non-volatile memory, and the control section 18 has a function of expanding the font corresponding to the character code and displaying it at an arbitrary position on the display section 5 .

Functions realized by the computer by the program of the control unit 18 include a standby screen display function, a radar scope display function, a GPS alarm function, a radar wave alarm function, a wireless alarm function, a video display function, a video recording function, a video playback function, There is also an operation log function.
The standby screen display function is a function of displaying the speed, latitude, longitude and altitude of the host vehicle detected by the GPS receiver 8 on the display unit 5, as shown in FIG. 3(a).

The radar scope display function, as shown in FIG. This is a function of searching information and displaying the relative positional relationship between the position of the vehicle and the position of the target on the display unit 5 . In FIG. 3(b), "W" on the left side indicates the direction of west, "E" on the right side indicates the direction of east, and "N" on the upper side indicates the direction of north. The icon at the point of intersection with the vertical line extending downward from ” indicates the position of the vehicle. Icons having characters such as "L", "RD", "P", "N" indicate the type and position of the target.

When the pressing of the standby switching button provided on the remote control 17 is detected during execution of the standby screen display function as shown in FIG. 3(a), the display is switched to the radar scope display function as shown in FIG. 3(b). Further, when it is detected that the standby switching button provided on the remote controller 17 is pressed while the radar scope display function is being executed, the display function is switched to the image display function. Further, when it is detected that the standby switching button provided on the remote controller 17 is pressed while the image display function is being executed, processing for switching to the standby screen display function is performed.

The control unit 18 controls the GPS alarm function, radar It executes processing for realizing each function such as a wave alarm function and a radio alarm function. The priority of each function is set in order of radar wave warning function, radio warning function, and GPS warning function from the highest one.

The GPS alarm function is a process that is executed at predetermined time intervals (1 second intervals) by an event from a timer in the control unit 18. The latitude and longitude of the target stored in the database 19 and the GPS receiver 8 detected The distance between the two is obtained from the latitude and longitude of the current position, and when the obtained distance becomes a predetermined proximity distance (for example, within 500 m), that effect is displayed on the display unit 5, and an approach warning is given from the speaker 20 to that effect. This is the process of outputting the sound of

These targets include drowsy driving accident points, radars, speed limit switching points, control areas, inspection areas, parking monitoring areas, N systems, traffic monitoring systems, intersection monitoring points, signal ignoring control systems, police stations, and frequent accidents. area, frequent car-targeting area, sharp/continuous curve (highway), branch/merge point (highway), ETC lane advance guidance (highway), service area (highway), parking area (highway), highway Oasis (highway), smart interchange (highway), PA/SA gas station (highway), tunnel (highway), highway radio reception area (highway), prefectural border announcement, roadside station, view point parking, etc. The type information of these targets, the latitude and longitude information indicating their positions, the data of schematic diagrams or photographs displayed on the display unit 5, and the audio data are associated with each other and stored in the database 19 .

As the map data, the same data as the map data used for car navigation is stored. That is, road network data, place name data, etc. associated with latitude and longitude.

The radar wave warning function is activated when the microwave receiver 4 detects a signal corresponding to microwaves in the frequency band emitted from a speed measuring device (such as a mobile radar (hereinafter simply referred to as "radar")). This is an alarm function for displaying an alarm screen on the display unit 5 and outputting an alarm sound from the speaker 20 . For example, when microwaves in the microwave frequency band emitted by a radar are detected by the microwave receiver 4, the schematic diagram or photograph of the radar stored in the database 19 is displayed on the display unit 5 as shown in FIG. Along with displaying the warning screen, the voice data stored in the database 19 is read out and the voice saying "It's radar. Be careful of speed" is output from the speaker 20. - 特許庁The alarm lamp 6 is turned on during voice output.

The radio alarm function is a function of issuing an alarm so as not to hinder the movement of the emergency vehicle or the like when the radio receiver 15 receives the radio wave emitted by the emergency vehicle or the like. In the radio alarm function, control radio, car location radio, digital radio, special radio, station active radio, police phone, police activity radio, tow radio, helicopter radio, fire helicopter radio, firefighting radio, emergency radio, expressway radio , security radio frequencies, etc., and when a radio signal is received at the scanned frequency, a schematic diagram indicating that the radio signal corresponding to the frequency stored in the database 19 for each radio type has been received is displayed as an alarm screen. While displaying on the display unit 5, the voice data stored in the database 19 for each wireless type is read out, and an alarm sound indicating the wireless type is output from the speaker 20. FIG. For example, when receiving a crackdown radio, it outputs a voice such as "This is crackdown radio. Be careful of speed." The alarm lamp 6 is turned on during voice output.
The image display function is a function of displaying image data received by the control unit 18 from the outside camera 23 on the display unit 5 .

The video recording function is a function for recording video data received by the control unit 18 from the camera 23 outside the vehicle in the memory card 14 . The control unit 18 detects the presence or absence of power supply from the DC jack, starts video recording when the power supply from the DC jack starts, and starts video recording when the power supply from the DC jack ends. finish. This processing is executed by a sub CPU provided in the control unit 18 . This video data is compressed into the MPEG format and recorded in a file with the extension ".MPG" with the date and time when the video recording started as the file name in the "DCIM" folder of the memory card 14. FIG. In a typical vehicle, power supply to the DC jack starts when the vehicle key is turned from OFF to ACC, and power supply to the DC jack ends when the vehicle key is turned to ACC. is turned off. If this section is defined as a travel section of the vehicle, one video file is created for one travel section of the vehicle.

The operation log function stores the vehicle status data including the acceleration obtained from the acceleration sensor 25 and the current position, current time, and speed (vehicle speed) obtained from the GPS receiver 8 in the "operation record" folder provided in the memory card 14. It is a function to record as each line of the log file. This processing is executed by a sub CPU provided in the control unit 18 . This operation log file is created in the CSV file format in the "operation record" folder of the memory card 14, with the date and time when the operation log recording is started as the file name, and one operation log file is generated for one traveling section of the vehicle.
The video reproduction function is a function for the control unit 18 to expand and display the video data recorded in the memory card 14 on the display unit 5 .

The memory card 14 is compatible with the SDHC memory card shown in FIG. 5(a) in terms of electrical characteristics and structure, and further has a wireless LAN function. Specifically, for example, a product commercialized as an Eye-Fi (registered trademark) card can be used.

The memory card 14 has a controller 48 made up of a microcomputer therein, to which a memory card interface 42, a flash memory 44 as storage means, and a wireless LAN module 46 are connected. When the memory card 14 is inserted into the memory card slot 30 , the memory card interface 42 is connected with the memory card reader 13 . When the memory card reader 13 is controlled by the control unit 18 to perform file write control, the control unit 48 receives the file data via the memory card interface 42 and stores the file in the flash memory 44 . The control unit 48 also controls the wireless LAN module 46 to search for a connectable wireless LAN access point, and if there is a connectable wireless LAN access point, connects to that access point. Then, an image server on the Internet is accessed via a wireless LAN access point, and the jpg, jpeg, bmp, It has a function to transfer files that have not yet been transferred among files with extensions of tiff, mov, wmv, avi, mpg, mpeg.mp4, flv, and mpo. Files stored outside the "DCIM" folder and extensions of images (including video) such as jpg, jpeg, bmp, tiff, mov, wmv, avi, mpg, mpeg.mp4, flv, mpo (specific extension ) will not be transferred. The address, ID, and password of a server connected to the Internet are set in a predetermined setting file from a personal computer and stored in advance, and the transfer destination of the file is determined by the address, ID, and password of the server stored in the setting file. The disk of the logged-in file storage service server.

In this way, the video file recorded in the "DCIM" folder of the memory card 14 by the video recording function is wirelessly transferred to the disk of the file storage service server preset by the personal computer.

Then, the radar detector having the drive recorder function of the present embodiment starts operating with the battery when the power supply from the DC jack is terminated. Operation with this battery is performed for one hour. That is, one hour after the start of operation by this battery, the power supply is cut off. This time of one hour is determined in consideration of the time required for the video files and the like recorded in the "DCIM" folder of the memory card 14 to be wirelessly transferred after the engine is stopped.

When the power supply from the DC jack is terminated, the operation log data imaging process shown in FIG. 6 is performed. In this process, the acceleration obtained from the acceleration sensor 25 and the current position, current time, and speed (vehicle speed ) into the image data and record it in the "DCIM" folder.
The flow of processing for realizing the operation log data imaging function by the control unit 18 will be described with reference to FIG.

First, in step (hereinafter referred to as S) 110, it is determined whether or not there is a file in the operation record folder. If there is no file (S110:N), this process is terminated. This is because, for example, when the engine is turned off immediately after being started, the operation log data imaging function is terminated without being executed. If there is a file in the operation record folder (S110: Y), the process proceeds to S120.

At S120, an operation log file for the current travel section is selected, and an image containing characteristic contents of the operation log in the file is generated. An image including departure date/time, departure place, arrival date/time, and arrival place is generated as characteristic contents of the operation log. For example, as shown in FIG. 7, the title "operation log", departure date and time "2010/01/10 10:30:25", departure location "Meito Ward, Nagoya City, Aichi Prefecture", arrival date and time "2010/01/10 11: 25:13", arrival place "Toyota-cho, Toyota-shi, Aichi-ken", etc. The fonts stored in the non-volatile memory are expanded and displayed. Below the title, a dividing line is drawn in the horizontal direction.

The date and time of departure is the date and time recorded in the first line of the operation log file, and the departure location is searched from the first line of the operation log file, and the latitude and longitude data obtained from the line where the data of the current position is first recorded. The corresponding place name is specified based on the map data in the database 19 and displayed. This is because it may not be possible to acquire position information from the GPS receiver 8 immediately after departure. The date and time of arrival is the date and time recorded in the last line of the operation log file, and the place name corresponding to the latitude and longitude data acquired from the last line of the operation log file is specified and displayed based on the map data of the database 19. - 特許庁

In S130, the image data displayed in S120 on the display unit 5 is encoded into a JPEG format image file, and the operation log file for the current travel section is embedded in the encoded JPEG format image file. Generate an embedded image file. This file is embedded in the implant JPEG format. That is, when the JPEG file is read and displayed by JPEG file viewer software, the operation log file is embedded in a data area that does not affect the development and display of the image in the JPEG image format.
In subsequent S140, the embedded image file generated in S130 is moved into the "DCIM" folder and stored.

In the following S150, the operation data file for this time is moved to the "image generated" folder, and this process is terminated.
In this way, the image files stored in the "DCIM" folder are wirelessly transferred to the disk of the server of the file storage service preset by the personal computer.

The data transferred in this way can be accessed by entering the address of the server into the browser of a personal computer connected to the Internet, entering the ID and password, and accessing this server. can do. From the displayed list of thumbnails, select the file to be downloaded to your personal computer by checking the check box and download it.

In this way, when displayed as thumbnails, for example, as shown in FIG. You can check and select which data by looking at the thumbnail of the image.
Download the checked files and store them in the "My Pictures" folder of your personal computer. For example, the file shown in FIG. 7 is stored.

Then, just by displaying thumbnails of the files in the "My Pictures" folder using the filer of your personal computer (for example, a standard filer called Explorer for Windows (registered trademark) and Finder for Mac), you can see which file is which operation. You can see if the log is embedded inside.

My personal computer stores a program for extracting the embedded file from the implanted JPEG file. When this program is executed, a JPEG file selection screen is displayed, and the file embedded in the selected JPEG file is extracted and stored as a new file in the selected folder (directory). will be

For example, when a file displaying the thumbnail image of FIG. 7 is selected, the operation file embedded in this file is extracted and stored in the "extracted operation data" folder designated by the user.

As described above, the radar detector is provided with the flash memory 44 and is connectable to the memory card 14 having the function of transmitting the files in the JPEG file format among the files stored in the flash memory 44 by wireless communication. It comprises a memory card reader 13 to which the card 14 is connected, and a control unit 18 that performs control to store a JPEG file format file in the flash memory 44 of the memory card 14. The control unit 18 generates the radar detector. It has a function to embed information to be used in a JPEG file format file. Therefore, since the information generated by the radar detector is embedded in the JPEG file format, the controller 48 of the memory card 14 determines that the file is in the JPEG file format, and transmits the file to the wireless LAN module via wireless communication. 46. Therefore, even a radar detector without a wireless communication function can transfer information generated by the radar detector to an information system such as a server or a personal computer by wireless communication.

The memory card 14 is a memory card compatible with an SDHC memory card in terms of electrical characteristics and structure. The memory card reader 13 is for connecting a memory card conforming to the SDHC memory card standard. generates an image file as a JPEG file format file, generates operation log information that is not specified in the file format standard of the JPEG image file as information generated by the radar detector, and embeds it in the JPEG file format file. , is stored in the flash memory 44 .

In this way, the memory card 14 having the wireless LAN connection function can be connected instead of the normal SDHC memory card having a mere storage function. The JPEG file format is recorded as a file with a ".JPG" extension. Video data is recorded as a file having an extension of ".MPG" in MPEG format. Therefore, it can be reproduced and displayed as a still image or moving image in an information system, and the information generated by the radar detector included in the file can be easily confirmed.

Note that the memory card 14 is for transmitting only files in the "DCIM" folder by wireless communication, and may have a function of deleting files that have been transmitted by wireless communication from the storage means. The control unit 18 may be configured to store a file in the JPEG file format in the "DCIM" folder, and store a backup file of the stored file in a folder other than the "DCIM" folder. For example, in S140 of FIG. 6, the embedded image file generated in S130 may be copied into the "backup" folder and then moved into the "DCIM" folder for storage. In this way, for example, the information generated by the radar detector embedded in the file deleted from the flash memory 44 in the memory card 14 by the controller 48 of the memory card 14 can be processed again by the radar detector. If you try to use it, you can refer to the backup file in the "backup" folder and use it for processing. For example, the contents of the previous operation log can be displayed when the engine is next turned on. For example, when the engine is turned on this time after the operation in which the display of FIG. 7 is performed, the image of FIG. 7, which is the latest image stored in the "backup" folder, is displayed on the display unit 5 for 20 seconds. Let By doing so, it is possible to reconfirm the acquisition status of the previous operation log at the start of the next operation. Of course, it can be used for various kinds of processing without being limited to this. In addition, for example, even if the recording medium storing the file obtained by wireless communication from the memory card 14 is lost or the file is deleted from the recording medium, the information system (including the memory card reader) For example, by connecting the memory card 14 to a personal computer, etc., the information generated by the radar detector can be reacquired from the “backup” folder of the memory card 14 .

The backup file may be a file containing information generated by the radar detector, and this file may be one file or a plurality of files. This file may be added to an existing file, or may be created as a new file.

In addition, when storing a file in the JPEG file format in the "DCIM" folder, the aforementioned embedding may be performed, and it may be determined whether or not to store the backup file in the "backup" folder. That is, it is not always necessary to create backup files corresponding to all JPEG file format files. For example, it is preferable to create a backup file for only necessary information among the information generated by the radar detector. For example, when the radar detector detects from the acceleration sensor 25 an acceleration in the longitudinal direction of 0.3 G or more, which is the acceleration corresponding to the impact at the time of collision, the screen of the display unit 5 is displayed in the same manner as the screen of FIG. Display "Caution for sudden deceleration" in the title of , display a screen displaying the date and time when sudden deceleration was detected, and create a JPEG file format file with these information embedded as a text file. and store it in the "DCIM" folder and create a backup file in the "backup" folder, but do not copy it to the "backup" folder in S140 of FIG. good too.

The JPEG file format file of this embodiment has a file format identification area for identifying whether it is a JPEG file format file, and the function of embedding the information generated by this radar detector in the JPEG file format file is Information (operation log information) generated by the radar detector is embedded in an implant JPEG format in an area other than the file format identification area. The memory card 14, which has the extension ".JPG", refers to the file format identification area to identify whether the file is in the JPEG file format. However, the JPEG file format is determined to be used, and the JPEG file is transmitted by wireless communication. Therefore, even a radar detector without a wireless communication function can transmit information generated by the radar detector by wireless communication.

The JPEG file format is a file format for storing information that can be visualized, and the control unit 18 embeds the log information generated by the radar detector in the JPEG file format, and visualizes the information generated by the radar detector. It is configured to be generated as possible information. Therefore, the operation log information generated by the radar detector can be displayed as information that can be visualized by an information system such as a personal computer. For example, if you display the image of this JPEG file with the image viewer software of the destination computer, etc., the information generated by the radar detector is included as visible information in the image, so you can simply view the image. , you can see the information generated by the radar detector contained in that file. For example, it is possible to easily confirm which file contains necessary information by displaying images as thumbnails or a slide show on a personal computer or the like of the transfer destination.

Further, in the present embodiment, the information generated by the radar detector is generated as character string information as the information that can be visualized, but it may be generated as a two-dimensional code. For example, together with the character string displayed as shown in FIG. 8, the contents of the character string may be displayed in the two-dimensional code and embedded in the JPEG file. In this way, for example, on an information system such as a personal computer, character string information can be displayed as visible information, and the information generated by the radar detector included in the file can be confirmed by the character string. In addition, for example, the two-dimensional code can be read by a mobile device or the like, and at least part of the information generated by the radar detector can be easily transferred to the mobile device or the like.

Further, in this embodiment, the display unit 5 is provided, and the control unit 18 is configured to generate at least part of the information displayed on the display unit 5 as visible information. Therefore, at least part of the information displayed on the display unit 5 of the radar detector is displayed as visible information simply by opening the file with a viewer of an information system such as a personal computer. Also, at least part of the information displayed on the display unit 5 of the radar detector can be displayed as visible information on a terminal such as a mobile phone or a digital camera other than a personal computer. Therefore, the information displayed on the display unit 5 of the radar detector can be easily recalled by looking at the thumbnail display or the like, and when the information is recorded can be easily recognized by various devices. can be specified.

In this embodiment, the visible information is generated as information displayed in a display mode similar to that displayed on the display unit 5 when the visible information is visualized. That is, the screen shot image of the screen displayed on the display unit 5 is generated as information that can be visualized.

Further, the information generated by the electronic device is information that changes with the passage of time, the predetermined file format is a video file format, and the visible information is information that changes with the passage of time. may be generated as the visible information by synchronizing with the passage of time of the moving image file. For example, the video data in the embodiments described with reference to FIGS. 1 to 7 may be configured to display items to be recorded in the operation log file. For example, longitudinal acceleration may be displayed in the video. In this way, it is possible to grasp the information generated by the electronic device at that time contained in the file simply by playing back the moving image file on the information system.

Furthermore, the video data may contain audible information. For example, the present radar detector may be further provided with a microphone, and the control unit 18 may capture the voice from the microphone and store it in the video data. The control unit 18 can embed the operation log information generated by the radar detector into a file in the file format of the video data, read out the operation log information generated by the radar detector by voice synthesis, and make it audible in the video data. It is preferable to have a configuration in which the information is also generated as a For example, when the acceleration exceeds a predetermined value, the acceleration is read out by voice synthesis and generated as audible information in the video data. In this way, for example, it is possible to reproduce the sound of the acceleration in the video data generated by the radar detector as information that can be made audible by an information system such as a personal computer.

Further, the operation log information may be embedded in an audio file format as a file format for storing audible information, and the log information generated by the radar detector may be generated as audio data. In this way, if the voice is played back by voice playback software on the destination computer, etc., the voice will contain the information generated by the radar detector as information that can be made audible. , you can check the operation log information generated by the radar detector included in the file.

Further, the predetermined file format is a JPEG format capable of storing position information, and is provided with an information system (server) for processing files in the JPEG file format transmitted from the memory card 14 by wireless communication. Position specifying information, which is information for specifying the position at the time of storing this file, is acquired based on the wireless reception state of the wireless LAN module 46 (SSID acquisition status and SSID distribution map). It is preferable to have a function of storing the position specifying information in association with the file and transmitting it by wireless communication. The radar detector has a GPS receiver 8 for detecting the current position, and the control unit 18 generates position information of the position detected by the GPS receiver 8 as information generated by the radar detector. , the information system (server) stores location information specified based on location specifying information associated with a file in JPEG file format, and information in JPEG file format as information detected by the GPS receiver 8 and generated by the radar detector. The position information to be stored in the JPEG file format may be determined based on the position information embedded in the file. In this way, the location information specified based on the location specifying information (SSID) acquired by the memory card 14 and the information detected by the GPS receiver 8 of the radar detector and generated by the radar detector are stored in a JPEG file. Since the position information to be stored in the JPEG file format is determined based on both position information embedded in the JPEG file format, the position information finally embedded in the JPEG file format is It is possible to obtain position information with higher position accuracy than the above. Note that, for example, a conventionally known method can be used as a method of calculating highly accurate position information from a plurality of pieces of position information.

The personal computer of this embodiment is an information system that acquires and processes a JPEG file format file transmitted from the memory card 14 to the server by wireless communication from the server. It has a function to extract the operation log information generated by the aircraft and store it as a separate file. Therefore, the operation log information generated by the radar detector can be recorded in the personal computer as a file separate from the JPEG format file. This separate file can also be in a file format unique to the radar detector. For example, it may be a file in a file format conventionally used by this radar detector. By doing so, it is possible to acquire the file by wireless communication without changing the program in the information system from the conventional one.

The information to be embedded in the JPEG file format file includes the information of the transfer destination of the file, and has a function of reading the information of the transfer destination and transferring at least one of the file and the other file to the transfer destination. may be configured. By doing so, the information generated by the radar detector can be transferred to a predetermined transfer destination. For example, even if the transfer destination in the transfer device is fixed to a predetermined transfer destination, the file can be transferred to a transfer destination other than the predetermined transfer destination. In this configuration, for example, the control unit 18 of the radar detector may perform a process of embedding the transfer destination information of the file as information to be embedded in the JPEG file format file.

In this embodiment, a radar detector with a drive recorder function is used as an example of an electronic device, but the present invention is not limited to this, and can be applied to various electronic devices having an SDHC memory card slot. In addition, the present invention can be applied to various electronic devices that support memory card standards other than SDHC and have a function of recording data other than image data.

For example, FIGS. 8 and 9 show examples in which the present invention is applied to a speed measuring instrument. This speed measuring device uses the Doppler effect of emitted microwaves to measure the head speed and ball speed of a golf club. It displays the estimated flight distance of the ball and the hit rate. The measurement results are stored in the memory card inserted in the SDHC memory card slot. recorded in For example, in the example of FIGS. 8 and 9, the data "2011/08/10,10:00,48.9,252,68.9,1.41,1W" is stored in the "DATA" folder of the SDHC memory card with the file name "20110810". ” file as a new line. The speed measuring instrument shown in FIG. 8 has a display portion shown in FIG. 9, which is composed of a color dot matrix liquid crystal display. As described above, when adding the measured data to the CSV file, generate image data in JPEG format as shown in FIG. 252,68.9,1.41,1W” and save it in the “DCIM” folder with the file name “201108101000.jpg”. By doing so, the file with the file name "201108101000.jpg" is wirelessly transferred to the server. When this file transferred to the server is obtained and opened on a personal computer, an image such as that shown in FIG. 9 is displayed. Also, if the measurement data is extracted from the embedded area of this file, the measurement data "2011/08/10,10:00,48.9,252,68.9,1.41,1W" can be extracted.

The image to be JPEG format image data may be the content displayed on the display unit as shown in FIG. good. If the image includes the main body, it is easy to determine by looking at the image what kind of device the data saved in is embedded.

Also, the display on the display unit may be a segment type display screen as shown in FIG. 10 instead of the dot matrix display, and the generated image data may be generated as an image simulating this segment.

In this embodiment, the embedded image file is generated by the implant JPEG method, but a method such as digital watermarking or steganography may be used to embed the file in the image itself. In addition, for example, using a known method described in "Patent Office Standard Technology Collection Denki 2002 Digital Watermark http://www.jpo.go.jp/shiryou/s_sonota/hyoujun_gijutsu/denshi_sukashi/index.htm" can be done.

Claims (4)

A drive recorder having a function of operating with a battery when power supply from a vehicle is terminated,
A function to record the current position,
a function of generating image data in which the recorded current position is embedded by operating the battery for a predetermined time when the power supply from the vehicle is terminated;
A function of recording video in a predetermined folder used for wireless transfer in a data transfer device connected to its own drive recorder when power is supplied from the vehicle;
has
The generating function records the generated embedded image data in the predetermined folder,
During the predetermined time, the embedded image data is generated and recorded in the predetermined folder, and the image data in the predetermined folder and the image recorded before the power supply from the vehicle is terminated. is a predetermined time in consideration of the time required to wirelessly transfer by the data transfer device
A drive recorder characterized by: A drive recorder having a function of receiving power supply from a vehicle to record video and a function of performing battery operation when the power supply from the vehicle is terminated,
a function of recording vehicle state data of the vehicle;
a function of generating image data in which the recorded vehicle state data is embedded by operating the battery for a predetermined time when the power supply from the vehicle is terminated;
A function of recording video in a predetermined folder used for wireless transfer in a data transfer device connected to its own drive recorder when power is supplied from the vehicle;
has
The generating function records the generated embedded image data in the predetermined folder,
During the predetermined time, the embedded image data is generated and recorded in the predetermined folder, and the image data in the predetermined folder and the image recorded before the power supply from the vehicle is terminated. is a predetermined time in consideration of the time required to wirelessly transfer by the data transfer device
A drive recorder characterized by: Equipped with a radar detection function,
3. The drive recorder according to claim 1, wherein said video is recorded by a camera capable of shooting in an infrared band. A program for causing a computer to implement the functions of the drive recorder according to any one of claims 1 to 3 .

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