JP6655892B2 - In-vehicle recorder - Google Patents

Description

  The present invention relates to an in-vehicle recording device that automatically records data such as video of an in-vehicle camera on a predetermined recording medium, and particularly to a technique for controlling display.

  Conventionally, a drive recorder has been used as one of the vehicle-mounted devices mounted on a vehicle. Such a drive recorder can record data such as video captured by a vehicle-mounted camera on a predetermined recording medium when an event such as a traffic accident occurs or periodically.

  For example, in a company or the like that operates taxi vehicles and other commercial vehicles, an administrator analyzes data recorded by a drive recorder mounted on the vehicle, and uses this data to promote the safe driving of crew members. be able to.

  On the other hand, there is also a drive recorder (for example, Patent Document 1) equipped with a function of displaying an image of a vehicle-mounted camera on a screen of an external monitor device. The drive recorder of Patent Literature 1 has a function of synthesizing a plurality of videos respectively captured by a plurality of in-vehicle cameras according to a predetermined layout, and displaying the output on a screen of one external monitor device.

JP 2013-167862 A

  By the way, in a company or the like that operates taxi vehicles and other business vehicles, it is necessary to appropriately manage the operation state of each vehicle and each crew member. In addition, each crew member must be properly managed so that each crew member does not work in violation of the Labor Standards Law. Therefore, an in-vehicle recording device such as a drive recorder is mounted on each business vehicle, and data indicating the operation state of each vehicle and each crew is automatically recorded. In other words, the manager in the company can obtain the data recorded by the drive recorder of each vehicle and analyze it to objectively grasp the actual vehicle operation status and the actual crew status of the crew. is there.

  However, it is not always possible to automatically record all the data necessary for grasping the actual operation status of the vehicle and the actual crew status of the crew by the drive recorder.For example, inaccurate data due to the self-report of each crew May be provided to the administrator.

  Specifically, in a normal operation, a crew may start a crew in a state where a crew member forgets to attach a recording medium such as a memory card to a vehicle-mounted recording device on a vehicle to be caught. It is also conceivable to start a crew with the recording medium attached to the vehicle-mounted recording device in an incompletely inserted state. It is also conceivable that the crew may operate the vehicle with the wrong button operation of a special vehicle-mounted device such as a taxi meter.

  Therefore, there is a possibility that the recording of data indicating the actual operation state of the vehicle or the actual operation state of the crew may fail, or erroneous data different from the actual operation state of the vehicle may be recorded by the onboard recording device. Therefore, the administrator may not be able to grasp accurate information.

  The above-described problems occur due to erroneous operations by crew members. Therefore, it is desirable to provide a display that allows the crew to reliably grasp the current state of the vehicle and the current operation state so that an erroneous operation does not occur. However, it is indispensable to reduce the size of a vehicle-mounted device such as a current drive recorder as much as possible, so that it is difficult to mount a large display that is easy to see. Further, even when an external monitor device is connected to the vehicle-mounted device as in Patent Document 1, only the image of the vehicle-mounted camera can be displayed on the screen of the external monitor device.

  The present invention has been made in view of the above circumstances, and has as its object to provide an in-vehicle recording device having a display function useful for preventing erroneous operations by crew members.

In order to achieve the above-mentioned object, an in-vehicle recording device according to the present invention is characterized by the following (1) to ( 5 ).

(1) Obtain an image from a vehicle-mounted camera mounted on a vehicle, obtain operation information related to the state of the vehicle or operation of the vehicle, and record the data of the image and the data of the operation information on a predetermined recording medium. An in-vehicle recording device,
An image output unit for outputting the image of the vehicle-mounted camera to a monitor display device,
A data processing unit that superimposes information corresponding to the operation information on a video output to the video output unit,
Equipped with a,
The data processing unit includes, as information to be superimposed on a video output to the video output unit, information indicating whether it is possible to record the data of the operation information on the recording medium,
It is characterized by the following.

According to this in-vehicle recording device, an image can be displayed on an external monitor display device using the image output unit. In addition, information such as character information corresponding to the operation information is superimposed on the video output from the in-vehicle recording device to the monitor display device by the function of the data processing unit. Therefore, the crew of the commercial vehicle can grasp the state of the vehicle or the operation information related to the operation of the vehicle by referring to the display contents on the screen of the monitor display device. Further, since it is not necessary to mount a large display unit on the in-vehicle recording device itself, the in-vehicle recording device can be downsized.
Furthermore, according to this in-vehicle recording device, when the operation of the commercial vehicle is started in a state where the data of the operation information cannot be recorded on the recording medium, an abnormality is displayed on the screen of the monitor display device. The crew can be immediately aware of the occurrence of the abnormality. Therefore, it is possible to prevent the operation business from being started without the data of the operation information being recorded.

(2) The in-vehicle recording device according to (1),
The data processing unit, as the operation information, handles at least one of data representing a state specific to the operation of the commercial vehicle, and data related to management of the working state of the crew driving the commercial vehicle,
It is characterized by the following.

  According to this on-vehicle recording device, in a company that operates commercial vehicles, a predetermined manager can automatically record operational information that is useful when managing the operational status of commercial vehicles and performing labor management of crew members. Can be. Further, when the crew actually operates the commercial vehicle, the operation information is displayed on the screen of the monitor display device as information such as character information, so that the crew operates the vehicle currently recorded by the on-board recording device. You can grasp information. Therefore, for example, in the case of an abnormal state in which the operation information cannot be recorded due to some operation error, the crew will immediately notice this abnormality when starting the crew on the day. In other words, it is possible to prevent a situation in which the user notices that the operation information has not been recorded after the operation of the business vehicle on the day ends.

(3) The in-vehicle recording device according to (1),
The data processing unit handles a plurality of types of data as the operation information, identifies a high or low priority according to the type of the operation information, and, for the operation information with a high priority, displays the corresponding information on a screen of the corresponding information. A display control unit that receives designation of at least one of a display size and a display color;
It is characterized by the following.

  According to this in-vehicle recording device, it is possible to adjust the display color and the display size of the information indicating the operation information with high priority so as to be conspicuous. Therefore, the visibility of the operation information with high priority on the display screen can be improved.

(4) The in-vehicle recording device according to (1),
A display state holding unit that holds display designation information for designating a display state of the operation information on a screen,
It is characterized by the following.

  According to this in-vehicle recording device, the display designation information for displaying the operation information in an optimal state is determined in advance and written in the display state holding unit, so that it is suitable for the operation state of the commercial vehicle. The operation information can be displayed in an easy-to-use state.

( 5 ) The on-vehicle recording device according to any one of (1) to ( 4 ),
With a function of automatically recording the data of the video and the data of the operation information on the recording medium when a specific abnormal state occurs in the own vehicle,
It is characterized by the following.

  According to this in-vehicle recording device, for example, when a dangerous situation occurs, video data and operation information data can be automatically recorded. Therefore, by analyzing the contents of the data recorded by the in-vehicle recording device, the manager can grasp the occurrence state of a dangerous situation and use it for promoting safe driving.

  According to the in-vehicle recording device of the present invention, the crew of the commercial vehicle can grasp the state of the vehicle or operation information related to the operation of the vehicle by referring to the display contents on the screen of the monitor display device. Thereby, erroneous operation of the crew can be prevented. Further, since it is not necessary to mount a large display unit on the in-vehicle recording device itself, the in-vehicle recording device can be downsized.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through embodiments for carrying out the invention described below (hereinafter, referred to as “embodiments”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a configuration example of a system including a vehicle-mounted recording device according to an embodiment of the present invention. FIG. 2 is a schematic diagram illustrating a configuration example of the operation information management table. FIG. 3 is a front view showing a specific screen display example of the external monitor display device. FIG. 4 is a flowchart showing a characteristic operation of the drive recorder.

  Specific embodiments of the present invention will be described below with reference to the drawings.

<Overview of the overall system>
FIG. 1 shows a configuration example of a system including an on-vehicle recording device according to an embodiment of the present invention. In the system shown in FIG. 1, the drive recorder 10 corresponds to the on-vehicle recording device of the present invention.

  The system shown in FIG. 1 is used in a state where it is mounted on a commercial vehicle such as a taxi vehicle. As shown in FIG. 1, the system includes a drive recorder 10, a plurality (n) of on-vehicle cameras 31 (1) to 31 (n), a GPS receiver 32, a vehicle speed sensor 33, and an external monitor display. It has a device 40 and an on-board taxi meter device 50.

  Each of the on-vehicle cameras 31 (1) to 31 (n) is installed in the vehicle compartment with the shooting directions facing different directions. As typical examples, it is possible to photograph a road or the like in front of or behind the traveling direction of the own vehicle through a window glass, photograph a subject existing in the left and right direction outside the vehicle, or photograph the driving situation of a crew driving the own vehicle. The in-vehicle cameras 31 (1) to 31 (n) are installed in such a state. By photographing the driving status of the crew, a video that can be used by a manager in the company to know whether the crew is driving safely is obtained.

  The drive recorder 10 shown in FIG. 1 captures video data captured by the in-vehicle cameras 31 (1) to 31 (n) when an event occurs or periodically, like a general drive recorder. Thus, data can be recorded (stored) on the recording medium 15.

  Further, the drive recorder 10 includes, in addition to the video, at least one of data representing a state specific to the operation of the commercial vehicle and data related to management of the working state of the crew driving the commercial vehicle. The data of “information” can also be automatically recorded on the recording medium 15. The “operation information” will be described later in detail.

  The drive recorder 10 shown in FIG. 1 has a function of outputting a video signal so that the video of the in-vehicle cameras 31 (1) to 31 (n) can be displayed using an external display device. . The drive recorder 10 also has a characteristic function of superimposing character information indicating the content of the "operation information" on the video signal to be output.

  In the system shown in FIG. 1, a video signal output from the drive recorder 10 is input to the external monitor display device 40. Therefore, the images of the in-vehicle cameras 31 (1) to 31 (n) and the character information of "operation information" are displayed on the screen of the external monitor display device 40. As the external monitor display device 40, it is assumed that a television monitor device, which is standardly mounted on a vehicle, or a display device of a car navigation system is used to display various information.

  The on-board taxi meter device 50 has functions necessary for the own vehicle to operate as a taxi vehicle. That is, it has a function of displaying an appropriate fare according to the operation state of the own vehicle, a function of adjusting the fare, and issuing a receipt. Further, the on-board taxi meter device 50 has various operation buttons (not shown) for switching various operation states of the taxi vehicle. Various information indicating the current operation state can be input from the on-board taxi meter 50 to the drive recorder 10.

<Configuration of Drive Recorder 10>
As shown in FIG. 1, the drive recorder 10 includes a microcomputer (CPU) 11, a nonvolatile memory 12, a memory card slot 14, a recording medium 15, a memory (SDRAM) 16, a G (acceleration) sensor 17, an interface (I / I / F) 18 (1) to 18 (n), 19, 23, and 24, a speed interface 20, a data processing unit 21, and a monitor video output unit 22.

  The microcomputer 11 performs an operation necessary for controlling the entire drive recorder 10 by executing a program incorporated in advance therein. That is, control for recording the data of the video obtained by photographing with the on-vehicle cameras 31 (1) to 31 (n) and the data of the "operation information" on the recording medium 15, the control of recording the video and the "operation information" Is performed by the microcomputer 11 in order to display "" on the screen of the external monitor display device 40.

  The nonvolatile memory 12 is a semiconductor memory capable of reading and rewriting data, and holds data of the operation information management table 13 as shown in FIG. Although details will be described later, the operation information management table 13 holds management information necessary for recording and displaying the “operation information”. The contents of the operation information management table 13 are updated as needed under the management of the microcomputer 11.

  The recording medium 15 is a card-shaped medium incorporating a large-capacity semiconductor memory capable of reading and rewriting data, and can store a large amount of data such as video. In addition, information such as a unique ID associated with a specific crew member who is the owner (or user) of the recording medium 15 is written in advance.

  The memory card slot 14 is an interface for connecting a recording medium 15 of a predetermined standard to the microcomputer 11, and has a card insertion slot (card slot) for physically holding the recording medium 15 in a detachable state. I have. It is also possible to mount a plurality of recording media 15 in the memory card slot 14 at the same time.

  The memory 16 is a volatile semiconductor memory (SDRAM) from which data can be read and written by accessing the microcomputer 11. The microcomputer 11 uses the memory 16 as a storage area for temporary storage.

  The G sensor 17 can detect acceleration applied to a vehicle on which the drive recorder 10 is mounted. That is, a signal representing this abnormality can be output in the case of sudden acceleration, sudden deceleration, a traffic accident, or the like of the own vehicle. The G sensor 17 is connected to the microcomputer 11 via the interface 23.

  The interfaces (I / F) 18 (1) to 18 (n) capture signals of the video images captured by the on-vehicle cameras 31 (1) to 31 (n), and the images suitable for the microcomputer 11 to process. The data can be converted into data and given to the microcomputer 11.

  The GPS receiver 32 can calculate the latitude and longitude position information indicating the current position of the receiving point based on radio waves received from a plurality of GPS (Global Positioning System) satellites. The interface 19 can provide the microcomputer 11 with the position information calculated by the GPS receiver 32 as the current position of the vehicle.

  The vehicle speed sensor 33 is installed near the output shaft of the transmission of the host vehicle, and can output a vehicle speed pulse signal every time the output shaft rotates a predetermined amount. Therefore, the number of appearances of the vehicle speed pulse per fixed time or the appearance cycle of the vehicle speed pulse can be associated with the traveling speed (vehicle speed) of the own vehicle.

  The speed interface 20 can calculate the running speed of the own vehicle based on the signal of the vehicle speed pulse output from the vehicle speed sensor 33 and can provide the calculated vehicle speed information to the microcomputer 11.

  The interface 24 can receive various operation information and a signal indicating the status from the on-board taxi meter 50 and provide the microcomputer 11 with the signal.

  The monitor image output unit 22 receives image data corresponding to images of the on-vehicle cameras 31 (1) to 31 (n) from the microcomputer 11, and generates an image signal that can be input to the external monitor display device 40. That is, by connecting the output terminal of the monitor image output unit 22 to the image input terminal of the external monitor display device 40 as shown in FIG. 1, the images captured by the onboard cameras 31 (1) to 31 (n) can be displayed on the external monitor. It can be displayed on the screen of the device 40.

  The data processing unit 21 receives the image data corresponding to the images of the on-board cameras 31 (1) to 31 (n) and the "operation information" from the microcomputer 11, and performs data processing so that these are superimposed in a predetermined state. The processing is performed, and the result is output to the monitor video output unit 22. That is, by providing the data processing unit 21, for example, as shown in FIG. It can be displayed on the screen at the same time.

<Configuration Example of Operation Information Management Table 13>
FIG. 2 shows a specific configuration example of the operation information management table 13. As shown in FIG. 2, in the present embodiment, the following items are managed in the operation information management table 13 as the operation information Do.

Entry / exit status Do01
General road / expressway / dedicated road condition Do02
Recording medium inserted state Do03
Cumulative stop time Do04
Stop time 10 minutes Bar Do05
Exercise run warning countdown Do06
Empty / Real vehicle condition Do07
Regular Crew / Co-Crew Do08
Land transport mode Do09
Working time Do10
Location information Do11
Vehicle speed Do12
Acceleration Do13

  The entry / exit status Do01 indicates whether the own vehicle that is a taxi vehicle is currently in “entry” or “exit”. The microcomputer 11 switches the content Do01a of the data of the entry / exit status Do01 in accordance with the button operation of the taxi meter vehicle-mounted device 50 by a crew member so as to match the state of the taxi meter vehicle-mounted device 50.

  The general road / highway / dedicated road state Do02 indicates whether the type of the road on which the own vehicle that is a taxi vehicle is currently traveling is “general road”, “highway”, or “dedicated road”. The microcomputer 11 switches the content Do02a of the data of the general road / highway / dedicated road state Do02 according to the button operation of the taxi meter vehicle-mounted device 50 by a crew member so as to match the state of the taxi meter vehicle-mounted device 50.

  The recording medium insertion state Do03 indicates a result of the microcomputer 11 identifying whether or not the microcomputer 11 can correctly access the normal recording medium 15 (read and write data). The content Do03a of the data in the recording medium inserted state Do03 is updated so as to match the identification result of the microcomputer 11.

  The cumulative stop time Do04 indicates the cumulative value of the length of time during which the host vehicle has been stopped in an “empty” state on the day. The content Do04a of the data of the cumulative stop time Do04 is sequentially updated under the control of the microcomputer 11.

  The 10-minute stop time bar Do05 is information for displaying the elapsed time from when the host vehicle stops in an “empty” state to the present time with a bar length of up to 10 minutes. The content Do05a of the data of the stop time 10 minute bar Do05 is sequentially updated under the control of the microcomputer 11.

  The exercise running warning countdown Do06 is information indicating the remaining time until an alarm is generated when any abnormal running state is detected. The contents of the data of the exercise running warning countdown Do06 are sequentially updated under the control of the microcomputer 11.

  The empty / real vehicle state Do07 indicates whether the own vehicle that is a taxi vehicle is currently in an “empty” or “real” state. The microcomputer 11 switches the content Do07a of the data of the empty / actual vehicle state Do07 so as to match the state of the taxi meter vehicle-mounted device 50 in accordance with the button operation of the taxi meter vehicle-mounted device 50 by a crew member.

  The regular crew member / sub-crew member Do08 indicates whether the crew member currently driving the vehicle is “regular crew member” or “sub-crew member”. The microcomputer 11 updates the content Do08a of the data of the regular crew member / sub-crew member Do08 based on the crew member ID number and the like held in the recording medium 15 currently mounted on the drive recorder 10.

  The land transportation mode Do09 indicates whether or not the own vehicle is currently traveling in the “land transportation mode”. The microcomputer 11 switches the content Do09a of the data in the land transportation mode Do09 in response to a button operation of a crew member on the drive recorder 10.

  The work time Do10 represents the cumulative value of the work time of the current crew corresponding to the recording medium 15 on the day or the current month. This work time is used as an index for determining whether or not the crew has worked more than the standards of the Labor Standards Act. The content Do10a of the data of the work time Do10 is sequentially updated by the microcomputer 11.

  The position information Do11 indicates the current position of the own vehicle calculated by the GPS receiver 32. The content Do11a of the data of the position information Do11 is sequentially updated by the microcomputer 11 to the latest information.

  The vehicle speed Do12 represents the current vehicle speed [km / h] of the own vehicle calculated based on the vehicle speed pulse output from the vehicle speed sensor 33. The content Do12a of the data of the vehicle speed Do12 is sequentially updated to the latest information by the microcomputer 11.

  The acceleration Do13 represents the current acceleration corresponding to the signal output from the G sensor 17. The content Do13a of the data of the acceleration Do13 is sequentially updated by the microcomputer 11 to the latest information.

  In the operation information management table 13 shown in FIG. 2, for each of the items Do01 to Do13 of the operation information Do, in addition to the data contents, “display presence / absence”, “importance”, “character size”, and “character size” There is provided an area for holding information of “display color”. For example, regarding the entry / exit status Do01, in addition to the content Do01a, information of “display presence / absence” Do01b, “importance” D01c, “character size” Do01d, and “display color” Do01e are stored in the operation information management table 13 in the operation information management table 13. Can be managed.

  Here, “display presence / absence” Do01b indicates whether or not the character information of the content Do01a is to be displayed in the output video. The “importance” Do01c indicates a high / low importance category regarding the item of the incoming / outgoing state Do01. "Character size" Do01d indicates a designated value of the character size when displaying the character information of the content Do01a. The “display color” Do01e indicates a designated value of the display color when the character information of the content Do01a is displayed.

  Therefore, it becomes possible for a user such as an administrator to execute various display controls related to the operation information Do by rewriting the information in the operation information management table 13 as necessary. As for a method of rewriting each information in the operation information management table 13, data may be transferred from the recording medium 15 to the nonvolatile memory 12 via the microcomputer 11, or a dedicated terminal (not shown) may be connected to the microcomputer 11. You may connect and rewrite.

  For example, it is also possible to provide a number of switches that can be operated by the user and use the switches instead of the operation information management table 13. That is, it is possible to control the display of the operation information by treating the state of each switch in the same manner as each information in the operation information management table 13. However, if the number of switches increases, an extra installation space is required and the cost of parts increases, so it is desirable to use the operation information management table 13.

<Screen display example>
FIG. 3 shows a specific screen display example of the external monitor display device 40. In the example illustrated in FIG. 3, the display content of the display screen 43 of the external monitor display device 40 includes the main video 42 and the operation information display unit 41.

  Here, the main image 42 corresponds to an image captured by any of the on-vehicle cameras 31 (1) to 31 (n). The display contents of the operation information display unit 41 correspond to the operation information Do superimposed on the video by the data processing unit 21. In the example illustrated in FIG. 3, the operation information display unit 41 includes a large number of various displays 41a to 41k.

  The display 41a in the operation information display section 41 in FIG. 3 is a character pattern representing “shipping”, and is visible display information corresponding to the content Do01a of the entry / exit state Do01 on the operation information management table 13. That is, when the content Do01a is a value corresponding to “shipping” and the microcomputer 11 outputs the character information “shipping” of the content Do01a to the data processing unit 21, the data processing unit 21 displays the character “shipping” on the video. To superimpose the information, the display 41a of FIG. 3 is displayed.

  The display 41b is a character pattern representing “dedicated”, and is visible display information corresponding to the content Do02a of the general road / highway / dedicated road state Do02 on the operation information management table 13. That is, when the microcomputer 11 outputs the character information “dedicated” of the content Do02a to the data processing unit 21 when the content Do02a is a value (dedicated road) corresponding to “dedicated”, the data processing unit 21 displays “ The display 41b in FIG. 3 is displayed to superimpose the “dedicated” character information.

  The display 41c is a character pattern representing "actual vehicle", and is visible display information corresponding to the content Do07a of the empty / actual vehicle state Do07 on the operation information management table 13. In other words, when the content Do07a is a value corresponding to "actual vehicle" and the microcomputer 11 outputs the character information "actual vehicle" of the content Do07a to the data processing unit 21, the data processing unit 21 displays the character "actual vehicle" on the video. To superimpose the information, the display 41c of FIG. 3 is displayed.

  The display 41d is a character pattern representing “square power”, and is visible display information corresponding to the content Do08a of the normal crew member / sub-crew member Do08 on the operation information management table 13. That is, when the microcomputer 11 outputs the character information “square power” of the content Do08a to the data processing unit 21 when the content Do08a is a value corresponding to “regular crew member”, the data processing unit 21 displays “square power” on the image. The display 41d in FIG. 3 is displayed to superimpose the character information "."

  The display 41e is a character pattern representing “land transportation”, and is visible display information corresponding to the content Do09a of the land transportation mode Do09 on the operation information management table 13. That is, when the microcomputer 11 outputs the character information “land transportation” corresponding to the content Do09a to the data processing unit 21 when the content Do09a is a value corresponding to the land transportation mode, the data processing unit 21 displays “land transportation” on the image. The display 41e of FIG. 3 is displayed to superimpose the character information of.

  The display 41f is a character pattern representing “continuous 1:23”, and is visible display information corresponding to the content Do04a of the cumulative stop time Do04 on the operation information management table 13. That is, when the value of the content Do04a is “1 hour and 23 minutes” and the microcomputer 11 outputs the character information “continuous 1:23” corresponding to the content Do04a to the data processing unit 21, the data processing unit 21 The display 41f of FIG. 3 is displayed in order to superimpose the character information of "Continuous 1:23" on.

  The display 41g is a character pattern representing “work 9:00”, and is visible display information corresponding to the content Do10a of the work time Do10 on the operation information management table 13. That is, when the content Do10a is a value corresponding to 9 hours and the microcomputer 11 outputs the character information “work 9:00” corresponding to the content Do10a to the data processing unit 21, the data processing unit 21 displays “ The display 41g of FIG. 3 is displayed to superimpose the character information of "Work 9:00".

  The display 41h is a character pattern representing "stop 4:56", and the display 41i is a "stop time 10 minute bar" composed of the characters "stop time" and ten rectangular patterns. These are visible display information corresponding to the content Do05a of the 10-minute stop time bar Do05 on the operation information management table 13. That is, when the content Do05a has a value of “4 minutes and 56 seconds”, the microcomputer 11 outputs “stop 4:56”, “stop time”, and ten rectangular patterns as character information corresponding to the content Do05a. Is output to the data processing unit 21, the displays 41h and 41i of FIG. 3 are displayed because the data processing unit 21 superimposes the corresponding character information on the video. . The "stop time 10 minute bar" of the display 41i can represent the time length in units of one minute by the length of the bar represented by the combination of the number of rectangles filled inside and the number of rectangles only for the frame.

  The display 41k is a character “1” surrounded by a rectangular pattern, and the display 41j is a character “2” surrounded by a rectangular pattern. The displays 41k and 41j correspond to the content Do03a of the recording medium inserted state Do03. That is, the display 41k indicates that the first recording medium 15 is correctly mounted in the memory card slot 14, and the display 41j indicates that the second recording medium 15 is correctly mounted in the memory card slot 14.

  Note that the display position and the display range of the operation information display unit 41 on the screen can be changed as necessary. Further, information for specifying the display position and the display range can be added to the operation information management table 13.

<Description of operation>
FIG. 4 shows a characteristic operation of the drive recorder 10. That is, the microcomputer 11 performs the operation shown in FIG. 4 based on the operation information management table 13 configured as shown in FIG. Thereby, the actual display form of the operation information display unit 41 shown in FIG. 3 can be variously changed according to the user's request. The operation shown in FIG. 4 will be described below.

  When recording data on the recording medium 15, the microcomputer 11 firstly transmits the video data captured by any of the vehicle-mounted cameras 31 (1) to 31 (n) in step S11 in FIG. ) To 18 (n).

  In the next step S12, the microcomputer 11 identifies whether or not to add the operation information Do to the video to be recorded and the video to be displayed. In the case where the operation information management table 13 shown in FIG. 2 is used, information Do01b to Do13b indicating the presence or absence of display is stored for each item of the operation information Do. Can be. Then, in the case of "displayed", the process proceeds to S13.

  In step S13, the microcomputer 11 transmits the character information to the data processing unit 21 so that the character information of the corresponding operation information is displayed on the screen of the external monitor display device 40 for the item "displayed" of the operation information Do. Output.

  For example, when the content of the information Do01b is “displayed”, the character information corresponding to the content Do01a of the storage / exit status Do01 is displayed as a display 41a in FIG. When the content of the information Do01b is “no display”, the display 41a is not displayed.

  In step S14, the microcomputer 11 identifies whether or not to change the display color of the operation information Do for the video to be displayed. In the present embodiment, of the many items included in the operation information Do, only the display color of a predetermined initial value is used for the information with low importance, and the display specified by the user is used for the information with high importance. Can be changed to color. When changing the display color to the designated color, the process proceeds to the next step S15.

  In step S15, the microcomputer 11 changes the display color of the character to the designated color for the items of high importance in the operation information Do. For example, since the item of the recording medium insertion state Do03 is very important, the information Do03c indicating the importance holds data indicating “high importance”. Further, data representing a designated color can be held as the information Do03e. In this case, when the recording medium insertion state Do03 is displayed as the displays 41j and 41k in FIG. 3, the display color is changed to the color specified by the information Do03e. Items with low importance or items for which no display color is specified are displayed in the default display color.

  In step S16, the microcomputer 11 identifies whether or not to change the character size of the operation information Do for the video to be displayed. In the present embodiment, among many items included in the operation information Do, only information of a predetermined initial value is used for information of low importance, and a character specified by a user is used for information of high importance. Can be changed to size. When changing the character size to the designated size, the process proceeds to the next step S17.

  In step S17, the microcomputer 11 changes the character size to the designated size for the items of high importance in the operation information Do. For example, since the item of the recording medium insertion state Do03 is very important, the information Do03c indicating the importance holds data indicating “high importance”. Further, data representing a character size can be held as the information Do03d. In this case, when the recording medium inserted state Do03 is displayed as the display 41j, 41k in FIG. 3, the character size is changed to the character size specified by the information Do03d. Items with low importance or items for which no character size is specified are displayed with the initial character size.

  In step S18, the microcomputer 11 outputs character information representing the contents of the corresponding item in the operation information Do to the data processing unit 21 while reflecting the results of the above steps S13, S15, and S17. It is added to the display content of the display device 40.

  The basic operation of the drive recorder 10 is the same as that of a general drive recorder. That is, when operating in the trigger recording mode, the recording operation is performed for a certain period of time (for example, 60 seconds) triggered by, for example, a trigger generated when the G sensor 17 detects a large acceleration. In addition, by constantly recording an image captured for a fixed time in the past (for example, 30 seconds) in an area such as the memory 16 as temporary data, an image for a fixed time captured before the timing when the trigger is generated can also be recorded. It can be read from the memory 16 and stored. In addition, when operating in the continuous recording mode, captured video is repeatedly acquired in a short cycle, and all video data is recorded on the recording medium 15. In the case of the continuous recording mode, when an event such as a large acceleration occurs, data indicating the presence or absence of the event and the type of the event is recorded on the recording medium 15 in association with the video.

  When analyzing data recorded on the recording medium 15, a management computer installed in an office of a company that manages commercial vehicles is used. Normally, when the operation on the day is finished, each crew removes the recording medium 15 on which the data is recorded from the drive recorder 10 and brings it into the office, and transfers the data to the management computer. Then, by executing a predetermined analysis program on the management computer, data that can be used for management of crew members' safe driving and labor management can be obtained.

<Advantages of the drive recorder 10>
Since the drive recorder 10 shown in FIG. 1 displays an image or the like using the external monitor display device 40 connected to the outside, it is not necessary to incorporate a large-sized display in the drive recorder 10 and it is easy to reduce the size. It is.

  By using the drive recorder 10 shown in FIG. 1, various operation information is displayed as character information on an appropriate operation information display section 41 on a display screen 43, for example, as shown in FIG. The state specific to the operation of the train or the state related to the management of the working state of the crew can be instantly grasped by referring to the displayed contents.

  For example, when the crew starts the operation of operating the business vehicle on the day, there is a possibility that the recording medium 15 may be forgotten to be mounted on the drive recorder 10 or the operation may be started while the mounting is incomplete. . In that case, the crew notices that the data has not been recorded after the operation on the day has been completed, resulting in a loss of valuable data. However, when the drive recorder 10 of FIG. 1 is used, the crew notices from the display contents of the operation information display section 41 on the screen of the external monitor display device 40 that there is a problem before starting the operation work. In addition, it is possible to prevent data recording from failing.

  In addition, by displaying the status related to the management of the working state of the crew (working time Do10 and the like) on the operation information display unit 41, it is possible to prevent the crew from starting operation in a state in violation of the Labor Standards Law. .

  In addition, if the crew mistakenly operates a button on the on-board taxi meter 50 or the like and starts or continues the operation as it is, various problems such as display of an incorrect fare may occur, and the efficiency of the operation operation may be increased. It leads to decline. However, when the drive recorder 10 is used, the operation information is displayed on the screen of the external monitor display device 40, so that the crew immediately notices the occurrence of an operation error. Therefore, it is possible to efficiently operate the operation.

  Also, since the external monitor display device 40, which can be shared with other on-vehicle devices, is used as a display device, the components of the drive recorder 10 itself can be reduced as compared with the conventional device, and the cost of the device is also reduced. it can.

  Further, since the content of the operation information displayed on the screen of the external monitor display device 40 is managed using the operation information management table 13, display / non-display can be selected for each type of operation information, It is also possible to display the operation information with a high degree of prominence according to the specified character size and display color. Therefore, it is possible for the user to optimize the display form of the operation information according to the contents of the operation work.

<Supplementary explanation>
The characteristic items related to the above-described drive recorder 10 will be listed below.
[1] An image is acquired from an on-vehicle camera (31) mounted on a vehicle, operation information (Do) related to the state of the vehicle or operation of the vehicle is acquired, and the data of the image and the data of the operation information are predetermined. An in-vehicle recording device for recording on a recording medium (15),
A monitor image output unit (22) for outputting an image of the on-vehicle camera to an external monitor display device (40);
A data processing unit (21) for superimposing information corresponding to the operation information on a video output to the video output unit;
An in-vehicle recording device (drive recorder 10) comprising:

[2] The data processing unit (21) includes, as the operation information (Do), data representing a state specific to the operation of a commercial vehicle, and data related to management of a working state of a crew driving the commercial vehicle. Handles at least one of (Do01 to Do10),
The in-vehicle recording device (drive recorder 10) according to the above [1], wherein:

[3] The data processing unit (21) handles a plurality of types of data as the operation information, identifies a high or low priority according to the type of the operation information, and determines whether the operation information has a high priority. A display control unit (S14 to S17) that receives designation of at least one of a display size and a display color of information to be displayed on a screen;
The in-vehicle recording device (drive recorder 10) according to the above [1], wherein:

[4] a display state holding unit (non-volatile memory 12) for holding display designation information (operation information management table 13) for designating a display state of the operation information on the screen;
The in-vehicle recording device (drive recorder 10) according to the above [1], wherein:

[5] The data processing unit (21) outputs the video to the video output unit in accordance with at least a state (Do03) of whether or not the data of the operation information can be recorded on the recording medium. Switch the contents (41k, 41j) of the information to be superimposed,
The in-vehicle recording device (drive recorder 10) according to the above [1], wherein:

[6] a function of automatically recording the video data and the operation information data on the recording medium when a specific abnormal state occurs in the vehicle;
The in-vehicle recording device (drive recorder 10) according to any one of the above [1] to [5].

Reference Signs List 10 drive recorder 11 microcomputer 12 non-volatile memory 13 operation information management table 14 memory card slot 15 recording medium 16 memory 17 G sensor 18, 19, 23, 24 interface 20 speed interface 21 data processing unit 22 monitor video output unit 31 in-vehicle camera 32 GPS receiver 33 Vehicle speed sensor 40 External monitor display device 41 Operation information display unit 41a, 41b, 41c, 41d, 41e, 41f display 41g, 41h, 41i, 41j, 41k display 42 Main video 43 Display screen 50 On-board taxi meter device Do operation information Do01 Entry / exit status Do02 General road / expressway / dedicated road status Do03 Recording medium insertion state Do04 Cumulative stop time Do05 Stop time 10 minutes bar Do06 Exercise warning counter Emissions Do07 unladen / vehicle state Do08 positive crew / sub crew Do09 land transportation mode Do10 Work Do11 location Do12 speed Do13 acceleration

Claims (5)

An in-vehicle recording device that acquires an image from an in-vehicle camera mounted on a vehicle, acquires operation information related to the state of the vehicle or operation of the vehicle, and records the data of the image and the data of the operation information on a predetermined recording medium. And
An image output unit for outputting the image of the vehicle-mounted camera to a monitor display device,
A data processing unit that superimposes information corresponding to the operation information on a video output to the video output unit,
Equipped with a,
The data processing unit includes, as information to be superimposed on a video output to the video output unit, information indicating whether it is possible to record the data of the operation information on the recording medium,
An in-vehicle recording device, characterized in that: The data processing unit, as the operation information, handles at least one of data representing a state specific to the operation of the commercial vehicle, and data related to management of the working state of the crew driving the commercial vehicle,
The in-vehicle recording device according to claim 1, wherein: The data processing unit handles a plurality of types of data as the operation information, identifies a high or low priority according to the type of the operation information, and, for the operation information with a high priority, displays the corresponding information on a screen of the corresponding information. A display control unit that receives designation of at least one of a display size and a display color;
The in-vehicle recording device according to claim 1, wherein: A display state holding unit that holds display designation information for designating a display state of the operation information on a screen,
The in-vehicle recording device according to claim 1, wherein: With a function of automatically recording the data of the video and the data of the operation information on the recording medium when a specific abnormal state occurs in the own vehicle,
The in-vehicle recording device according to any one of claims 1 to 4 , wherein: