JP2013117778A - In-vehicle device and travel data transfer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle device which allows travel data recorded in a recording medium to be easily transferred without extraction of the recording medium.SOLUTION: When a near-miss occurs during traveling, an on-vehicle device 10 records travel data including image data photographed at the time of the occurrence of the near-miss or the like, into a memory card 34 together with the time. When a vehicle 5 is put into a garage, the on-vehicle device 10 establishes a connection to a PC 50 on the side of an office 70 to which a plurality of on-vehicle devices can be connected via a wireless LAN, and transmits travel data and the like recorded in the memory card 34, to the PC 50. When completing reception of the travel data and the like, the PC 50 instructs the on-vehicle device 10 to initialize the memory card 34. The PC 50 uses the travel data and the like to create a journal 85 and registers it with a storage memory 77 and erases unnecessary data in the travel data. When receiving the initializing instruction, the on-vehicle device 10 initializes the memory card 34.

Description

  The present invention relates to a vehicle-mounted device and a travel data transfer system mounted on a vehicle.

  Conventionally, a drive recorder, which is an on-vehicle device, detects acceleration (G value) by an acceleration sensor, and when this G value exceeds a threshold, it records image data taken by a camera, travel data such as acceleration, on a memory card. It was.

  After the operation is finished, the driver pulls out the memory card from the drive recorder body, inserts it into the card R / W of the data processing device (PC) on the office side, and reads the driving data recorded on the memory card. Transferred to PC.

  The PC on the office side analyzed the occurrence of a near-miss or an accident (hereinafter referred to as a near-miss) based on the transferred travel data.

  As this type of prior art, a drive recorder that transfers image data at the time of an accident to an external device by short-range wireless communication is known (see Patent Document 1).

JP 2010-072845 A

  However, the conventional vehicle-mounted device has the following problems. As described above, the driver pulls out the memory card in which the traveling data is recorded from the drive recorder that is the vehicle-mounted device and brings it to the office. The driver then inserts a memory card into the card R / W connected to the office data processing device (PC), and causes the PC to read the travel data recorded on the memory card, thereby transferring data. Had gone. As described above, conventionally, when data transfer is performed, a driver is required to perform troublesome work, which places a burden on the driver.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an on-vehicle device and a travel data transfer system that can easily transfer travel data recorded on a recording medium without removing the recording medium. It is to provide.

In order to achieve the above-described object, the vehicle-mounted device according to the present invention is characterized by the following (1) to (4).
(1) An on-vehicle device mounted on a vehicle,
An acquisition unit that acquires the traveling data of the vehicle during traveling;
A recording unit that records the vehicle travel data acquired by the acquisition unit in a recording medium that can be inserted into and removed from the vehicle-mounted device;
After entering the vehicle, a transmission unit that connects to a plurality of on-vehicle devices that can be connected by a wireless LAN, and transmits travel data recorded on the recording medium to the external device;
Be provided.
(2) The vehicle-mounted device configured as described in (1) above,
The transmission unit transmits driver identification information and vehicle information stored in the recording medium together with the travel data.
(3) The vehicle-mounted device having the above configuration (1) or (2),
After the travel data is transmitted to the external device, a receiving unit that receives an instruction to initialize the recording medium from the external device;
When receiving the initialization instruction, an initialization unit that initializes the recording medium;
Be provided.
(4) The vehicle-mounted device having any one of the configurations (1) to (3),
A detector that detects an abnormality of the vehicle while the vehicle is running;
A communication unit that transmits information indicating that the abnormality has occurred to the external device via a wide-area communication network different from the wireless LAN when the detection unit detects the abnormality of the vehicle;
Be provided.

In order to achieve the above-described object, the traveling data transfer system according to the present invention is characterized by the following (5) to (8).
(5) A travel data transfer system that includes an on-vehicle device mounted on a vehicle and an external device capable of communicating with the on-vehicle device, and transfers travel data of the vehicle to the external device,
The in-vehicle device is
An acquisition unit that acquires the traveling data of the vehicle during traveling;
A recording unit that records the vehicle travel data acquired by the acquisition unit in a recording medium that can be inserted into and removed from the vehicle-mounted device;
A data transmission unit that connects to the external device to which a plurality of the vehicle-mounted devices can be connected via a wireless LAN after the vehicle is stored, and transmits the traveling data recorded in the recording medium to the external device;
With
The external device is
A wireless LAN access point capable of connecting a plurality of the vehicle-mounted devices to the wireless LAN;
A data receiving unit for receiving travel data transmitted from the in-vehicle device connected to the wireless LAN;
An analysis unit for performing data analysis using the received travel data;
Be provided.
(6) A travel data transfer system configured as described in (5) above,
The external device includes a determination unit that determines whether to save the travel data received from the vehicle-mounted device in a storage medium after performing the data analysis,
When the travel data is not stored in a storage medium, the travel data is deleted except for predetermined data included in the travel data.
(7) A travel data transfer system configured as described in (5) or (6) above,
The external device includes an instruction transmission unit that transmits an instruction to initialize the recording medium to the vehicle-mounted device after receiving the travel data,
The on-vehicle device includes: an instruction receiving unit that receives the initialization instruction; and an initialization unit that initializes the recording medium when the initialization instruction is received.
(8) A travel data transfer system having any one of the configurations (5) to (7),
The analysis unit creates a daily report using the travel data.

  According to the vehicle-mounted device having the configuration of (1) to (4) and the travel data transfer system having the configuration of (5) to (8), the wireless LAN can be connected to a plurality of vehicle-mounted devices after the vehicle is received. Since the traveling data recorded on the recording medium is transmitted to the external device, the traveling data recorded on the recording medium can be easily transferred.

  According to the present invention, after the vehicle is stored, the wireless LAN that can be connected to a plurality of vehicle-mounted devices is connected to an external device, and the traveling data recorded on the recording medium is transmitted to the external device. Data transfer of the recorded traveling data can be easily performed.

FIG. 1 is a diagram illustrating a configuration of a travel data transfer system 1 including an on-vehicle device 10 according to an embodiment. FIG. 2 is a diagram illustrating an outline of the travel data transfer system 1 (FIG. 2A) and an appearance of the vehicle-mounted device 10 (FIG. 2B). FIG. 3 is a diagram showing the recorded contents of the memory card 34. FIG. 4 is a flowchart showing an operation procedure of the vehicle-mounted device 10. FIG. 5 is a flowchart showing an operation procedure of the PC 50. FIG. 6 is a diagram showing a daily report 85 created as a result of data analysis.

  An in-vehicle device and a travel data transfer system according to an embodiment of the present invention will be described with reference to the drawings. The vehicle-mounted device of this embodiment is applied to a drive recorder device.

  FIG. 1 is a diagram illustrating a configuration of a travel data transfer system 1 including an on-vehicle device 10 according to an embodiment.

  The travel data transfer system 1 is installed in the vehicle-mounted device 10 and the office 70 mounted on the vehicle 5 (see FIG. 2), and is installed in the wireless LAN access point 72 that performs wireless communication with the vehicle-mounted device 10 and the office 70. Data processing device 75.

  The on-vehicle device 10 includes a CPU 11, a nonvolatile memory 12, a volatile memory 13, a card interface (I / F) 14, an audio I / F 15, a real-time clock (RTC) 16, and a SW input unit 17 inside the on-vehicle device body 10 a. Have

  The vehicle-mounted device 10 includes a CAN interface (I / F) 18, a communication terminal I / F 19, a wireless LAN unit 32, a power supply 20, a G sensor 21, a camera I / F 22, a speed / engine rotation I / F 23, and a speed / engine. A rotation alarm unit 24 is provided.

  Moreover, the onboard equipment 10 has external input I / F25, signal input I / F26, external output I / F27, ETCI / F28, and GPSI / F29.

  CPU11 controls the onboard equipment 10 whole. The nonvolatile memory 12 stores an operation program executed by the CPU 11 and travel data described later. The volatile memory 13 is used as a working memory.

  A memory card 34 possessed by the driver can be inserted into and removed from the card I / F 14. A speaker 53 is connected to the audio I / F 15. The RTC 16 includes a clock IC and measures the current time.

  The SW input unit 17 receives ON / OFF signals of various switches such as operation start / end. Various devices are connected to a CAN (Controller Area Network) I / F 18.

  A wide area communication terminal 31 is connected to the communication terminal I / F 19. The wide area communication terminal 31 performs wide area communication via the antenna 31a and connects the vehicle-mounted device 10 to a packet communication network (not shown). On the other hand, the wireless LAN unit 32 connects to the wireless LAN access point (AP) 72 installed in the office 70 via the antenna 32a via a wireless LAN (Local Area Network), and transmits data between the vehicle-mounted device 10 and the PC 50. Send and receive.

  The G sensor 21 detects gravitational acceleration. The camera I / F 22 is connected to a camera 55 that is mounted on the vehicle 5 and photographs the periphery of the vehicle 5 (for example, the front of the vehicle). A vehicle speed sensor 56 and an engine speed (NE) sensor 57 are connected to the speed / engine rotation I / F 23.

  The speed / engine rotation alarm unit 24 is an alarm device such as a lamp or a buzzer. Various external signals such as a distance meter 64 that measures the travel distance of the vehicle 5 are input to the external input I / F 25. To the signal input I / F 26, an ON / OFF signal of an ignition (IG) SW60, an ON / OFF signal of a brake SW61, an ON / OFF signal of a blinker SW62, a signal of a gear position sensor 63 that detects a gear position, and the like are input. The Various signals are output to the external output I / F 27. An ETC vehicle-mounted device 59 is connected to the ETCI / F 28. A GPS receiver 58 is connected to the GPS I / F 29.

  On the other hand, a wireless LAN access point 72 and a data processing device 75 are installed on the office 70 side. The data processing device 75 and the wireless LAN access point 72 correspond to external devices that can communicate with the vehicle-mounted device 10. The wireless LAN access point 72 connects to the vehicle-mounted device 10 mounted on each of the plurality of vehicles 5 (5a, 5b, 5c) via the antenna 72a by wireless LAN, and performs data communication with each vehicle-mounted device 10.

  The data processing device 75 is connected to the wireless LAN access point 72 and performs data analysis based on travel data, and includes a computer device (PC) 50, a display 73, a card I / F 76, a storage memory 77, and the like. . The memory card 34 can be inserted into and removed from the card I / F 76. The storage memory 77 (storage medium) consists of a hard disk drive (HDD) and registers various data.

  FIG. 2 is a diagram illustrating an outline of the traveling data transfer system 1 and an appearance of the vehicle-mounted device 10. As shown in FIG. 2A, when a near-miss or an accident (hereinafter referred to as a near-miss) occurs while the vehicle 5 is traveling, the vehicle-mounted device 10 captures images and driving data taken when the near-miss occurs. Recorded in the memory card 34 along with the time.

  In addition, when the vehicle 5 is received, the vehicle-mounted device 10 performs wireless LAN connection with the PC 50 on the office 70 side via the wireless LAN unit 32 and the wireless LAN access point 72, and the travel data recorded in the memory card 34. Etc. are transmitted to PC50. Here, the wireless LAN access point 72 can be connected to a plurality of vehicles 5 via a wireless LAN, and performs wireless communication with the vehicle-mounted device 10 mounted on each vehicle 5. When it is not necessary to distinguish the plurality of vehicles 5a, 5b, and 5c, they are referred to as vehicles 5.

  In addition, when the PC 50 finishes receiving the travel data and the like from the vehicle-mounted device 10, it instructs the vehicle-mounted device 10 to initialize (format) the memory card 34. Further, the PC 50 creates a daily report (see FIG. 6) using the received travel data and the like, and registers it in the storage memory 77.

  On the other hand, when the in-vehicle device 10 receives an initialization instruction from the PC 50, the on-vehicle device 10 initializes (formats) the memory card.

  As shown in FIG. 2 (B), on the front surface of the vehicle-mounted device main body 10a, a card I / F 14 in which a memory card 34 is removably mounted, a SW input unit 17 having various switches such as operation start / end, and the like. A speaker 53 that emits sound is disposed. In addition, as described above, the camera 55 is installed separately from the vehicle-mounted device main body 10a, and is connected to the vehicle-mounted device main body 10a by wire.

  FIG. 3 is a diagram showing the recorded contents of the memory card 34. In addition to driver identification information (driver ID) and vehicle information (vehicle number etc.), traveling data such as image data and driving data are recorded along with the time on the memory card 34. For example, a near-miss occurred at time 8:30, and further, an image taken at that time (a near-miss image) and operation data are recorded. The driving data includes vehicle speed, acceleration, engine speed (NE), brake SW ON / OFF, turn signal SW ON / OFF, GPS position information, travel distance, and the like.

  As a result, data can be analyzed on the PC side simply by transferring the data recorded on the memory card 34 (recording medium) to the PC 50 on the office side. In this embodiment, an SD card (registered trademark) or a CF card is used as the memory card.

  Operation | movement of the driving | running | working data transfer system which has the said structure is shown. FIG. 4 is a flowchart showing an operation procedure of the vehicle-mounted device 10. This operation program is stored in the ROM in the CPU 11 and is executed by the CPU 11.

  First, the CPU 11 waits until the ignition SW 60 is turned on (step S1). When the ignition SW 60 is turned on, the CPU 11 performs an initialization process (step S2).

  CPU11 takes in vehicle information (Step S3). The vehicle information includes a vehicle body number and the like.

  CPU11 reads the image data image | photographed with the camera 55 (step S4). Further, the CPU 11 reads acceleration information by the G sensor 21 (step S5). Then, the CPU 11 determines whether or not the longitudinal or lateral acceleration (G value) obtained from the acceleration information exceeds a preset threshold (recording trigger level) (step S6). In the present embodiment, this threshold is set to a value that can detect the occurrence of a near-miss or the like. The process of step S6 corresponds to an abnormality detection unit that detects an abnormality of the vehicle during traveling.

  If the threshold is not exceeded, the CPU 11 returns to the process of step S4. On the other hand, if the threshold value is exceeded, it is determined that a near-miss or the like has occurred, and the CPU 11 records the image data recorded in the volatile memory 13 for a certain period of time and the currently captured image data in the memory card 34. Start (step S7). Further, in step S7, the CPU 11 starts to obtain the above-mentioned operation data (vehicle speed, engine speed, position, travel distance, brake ON / OFF, turn signal ON / OFF) and record it in the memory card 34. To do. The process in step S7 corresponds to an acquisition unit. In step S7, a trigger mark indicating that the threshold has been exceeded is stored in the volatile memory 13.

  Thereafter, the CPU 11 completes recording on the memory card 34 (step S8). Steps S7 and S8 correspond to a recording unit. CPU11 discriminate | determines whether it is operation completion from the various signals input via SW input part 17 (step S9).

  When the operation is not finished, the CPU 11 returns to the process of step S4. On the other hand, when the operation is terminated in step S9, the CPU 11 waits until the vehicle 5 returns to the parking lot and enters the parking lot (step S10). This confirmation of entry is performed, for example, based on whether or not the gear position detected by the gear position sensor 63 input via the signal input I / F 26 is parked.

  After the warehousing, the CPU 11 determines whether or not the vehicle 5 has entered a communication range where the wireless LAN unit 32 and the wireless LAN access point 72 in the office 70 can be connected by wireless LAN (step S11). If not in the communication range, the CPU 11 returns to the process of step S10.

  On the other hand, when the vehicle 5 is within the communication range, the CPU 11 starts communication by the wireless LAN unit 32 (step S12). The CPU 11 waits until a connection between the wireless LAN unit 32 and the wireless LAN access point 72 is established (step S13).

  When the connection between the wireless LAN unit 32 and the wireless LAN access point 72 is established, the CPU 11 receives the travel data, driver ID, and vehicle information recorded in the memory card 34 in response to a request from the PC 50 on the office side. (Step S14).

  In the data transmission in step S14, operation data including time, travel distance, vehicle speed and the like periodically recorded in the memory card 34 is also transmitted to the PC 50 in a routine different from this routine. Note that the processing in step S14 corresponds to a transmission unit (data transmission unit).

  Thereafter, the CPU 11 waits for an instruction for initialization processing from the PC 50 (step S15). When there is an instruction for initialization processing, the CPU 11 performs initialization (format) (step S16) and ends this operation. The process of step S15 corresponds to a receiving unit (instruction receiving unit). Further, the process of step S16 corresponds to an initialization unit.

  In step S16, even if the CPU 11 receives an instruction for initialization processing, the CPU 11 may not execute the processing immediately, but may perform the initialization processing only when a predetermined condition is satisfied. For example, the initialization process may be performed only when the instruction for the initialization process reaches a predetermined number of times or when it is performed at a predetermined timing. Thereby, the formatting is automatically performed without being conscious of the format of the memory card, so that it is possible to suppress the occurrence of a defective sector in the memory card and the fragmentation of the storage area.

  FIG. 5 is a flowchart showing an operation procedure of the PC 50. This operation program is stored in a recording medium in the PC 50 and is executed by the CPU in the PC 50. The PC 50 waits until the connection between the wireless LAN unit 32 and the wireless LAN access point 72 in the vehicle-mounted device 10 mounted on any of the vehicles 5 (5a, 5b, 5c) is established (step S31).

  The PC 50 requests the vehicle-mounted device 10 with which the connection is established to read the travel data recorded in the memory card 34, and receives the travel data, the driver ID, and the vehicle information transmitted from the vehicle-mounted device 10 (step S32). ). The process of step S32 corresponds to a data receiving unit.

  The PC 50 analyzes the travel data using the received travel data, driver ID, and vehicle information (step S33). The process in step S33 corresponds to an analysis unit. Further, the PC 50 creates a daily report based on the analysis result (step S34). FIG. 6 is a diagram showing a daily report 85 created as a result of data analysis. The daily report 85 includes a car number (body number), a driver ID, and a driver name. In addition, the delivery time, entry time, and break time are recorded. In addition, the travel distance at the time of entry, the travel distance at the time of exit, and the travel distance of today are written. In addition, data such as the number of near misses, the number of sudden accelerations, the number of sudden decelerations, the maximum speed, etc. are recorded.

  Thus, since the PC 50 automatically creates daily reports based on the data recorded in the memory card 34, data input for daily report creation by the driver can be omitted, and the driver's load is reduced.

  Thereafter, the PC 50 confirms whether or not all data are set to be stored in the storage memory 77 (step S35). The process of step S35 corresponds to a determination unit. If it is set to save all data, the PC 50 saves all the received travel data and the like in the storage memory 77 (step S36). On the other hand, if it is not set to save all data, the PC 50 saves only the modulo 3 element data (time, distance and speed) in the storage memory 77 and erases the other data (step S37). That is, data such as position, engine speed, acceleration, brake ON / OFF, turn signal ON / OFF, and the like are deleted, except for the time, travel distance, and vehicle speed that are regularly recorded by the vehicle-mounted device. As a result, unnecessary data is not backed up to the storage memory, and an increase in storage capacity can be suppressed.

  After the processes in steps S36 and S37, the PC 50 transmits an initialization instruction for the memory card 34 to the vehicle-mounted device 10 (step S38). The process of step S38 corresponds to an instruction transmission unit. Thereafter, the PC 50 ends this operation.

  Thus, according to the vehicle-mounted device of the present embodiment, data transfer such as travel data recorded in the vehicle-mounted device can be easily performed. This eliminates the need for the driver to bring a memory card and insert it into a PC on the office side, thereby enabling so-called cardless analysis.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration that can achieve the function of the configuration of the present embodiment is applicable.

  For example, in the above-described embodiment, the case where the present invention is applied to a drive recorder device as an in-vehicle device is shown. However, the present invention is not limited to this, and a device having a communication function and capable of recording travel data, such as a digital tachograph, may be used. Good.

  In the above embodiment, when a near-miss occurs, the trigger mark indicating that the threshold value has been exceeded is only stored in the volatile memory 13 in step S7. In this case, the vehicle-mounted device 10 issues an alarm with the speaker 53 and is connected to the wide area communication network via the wide area communication terminal 31 so as to notify the PC 50 on the office 70 side of the data including the trigger mark and vehicle information. You may make it (communication part). Thereby, when a plurality of vehicle-mounted devices 10 are connected to the wireless LAN, the PC 50 can perform data analysis by giving priority to the data transfer of the vehicle-mounted device to which the trigger mark is added.

  INDUSTRIAL APPLICATION This invention can perform the data transfer of the driving | running | working data recorded on the onboard equipment easily, and is useful.

DESCRIPTION OF SYMBOLS 1 Traveling data transfer system 5 Vehicle 10 Onboard equipment 10a Onboard equipment main body 11 CPU
12 Nonvolatile memory 13 Volatile memory 14, 76 Card I / F
15 Voice I / F
16 RTC
17 SW input section 18 CAN I / F
19 Communication terminal I / F
20 Power supply 21 G sensor 22 Camera I / F
23 Speed / Engine rotation I / F
24 Speed / Engine rotation warning unit 25 External input I / F
26 Signal input I / F
27 External output I / F
28 ETCI / F
29 GPS I / F
31 Wide Area Communication Terminal 32 Wireless LAN Unit 34 Memory Card 50 Computer Device (PC)
53 Speaker 55 Camera 56 Speed sensor 57 Engine speed (NE) sensor 58 GPS receiver 59 ETC on-board unit 60 Ignition (IG) SW
61 Brake SW
62 Winker SW
63 Gear position sensor 64 Distance meter 70 Office 72 Wireless LAN access point 73 Display device 75 Data processing device 77 Storage memory 85 Daily report

Claims (8)

An in-vehicle device mounted on a vehicle,
An acquisition unit that acquires the traveling data of the vehicle during traveling;
A recording unit that records the vehicle travel data acquired by the acquisition unit in a recording medium that can be inserted into and removed from the vehicle-mounted device;
After entering the vehicle, a transmission unit that connects to a plurality of on-vehicle devices that can be connected by a wireless LAN, and transmits travel data recorded on the recording medium to the external device;
A vehicle-mounted device comprising: The in-vehicle device according to claim 1,
The transmission unit transmits driver identification information and vehicle information stored in the recording medium together with the travel data. The vehicle-mounted device according to claim 1 or 2,
After the travel data is transmitted to the external device, a receiving unit that receives an instruction to initialize the recording medium from the external device;
When receiving the initialization instruction, an initialization unit that initializes the recording medium;
A vehicle-mounted device comprising: The on-vehicle device according to any one of claims 1 to 3,
A detector that detects an abnormality of the vehicle while the vehicle is running;
A communication unit that transmits information indicating that the abnormality has occurred to the external device via a wide-area communication network different from the wireless LAN when the detection unit detects the abnormality of the vehicle;
A vehicle-mounted device comprising: An on-vehicle device mounted on a vehicle; and an external device capable of communicating with the on-vehicle device;
The in-vehicle device is
An acquisition unit that acquires the traveling data of the vehicle during traveling;
A recording unit that records the vehicle travel data acquired by the acquisition unit in a recording medium that can be inserted into and removed from the vehicle-mounted device;
A data transmission unit that connects to the external device to which a plurality of the vehicle-mounted devices can be connected via a wireless LAN after the vehicle is stored, and transmits the traveling data recorded in the recording medium to the external device;
With
The external device is
A wireless LAN access point capable of connecting a plurality of the vehicle-mounted devices to the wireless LAN;
A data receiving unit for receiving travel data transmitted from the in-vehicle device connected to the wireless LAN;
An analysis unit for performing data analysis using the received travel data;
A travel data transfer system comprising: The travel data transfer system according to claim 5,
The external device includes a determination unit that determines whether to save the travel data received from the vehicle-mounted device in a storage medium after performing the data analysis,
When the travel data is not stored in a storage medium, the travel data is erased except for predetermined data included in the travel data. The travel data transfer system according to claim 5 or 6,
The external device includes an instruction transmission unit that transmits an instruction to initialize the recording medium to the vehicle-mounted device after receiving the travel data,
The vehicle-mounted device includes: an instruction receiving unit that receives the initialization instruction; and an initialization unit that initializes the recording medium when the initialization instruction is received. . The travel data transfer system according to any one of claims 5 to 7,
The analysis unit generates a daily report using the travel data, and the travel data transfer system.

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