JP2019053399A - On-vehicle device - Google Patents

Abstract

To eliminate the need for troublesome operations such as a button operation of a driver for data transfer at the time of vehicle entry, and to significantly reduce the chances of failure in a data transfer operation.SOLUTION: When a vehicle enters, operation data recorded by a digital tachograph is automatically transferred to an office PC using a wireless LAN access point. The digital tachograph starts data transmission even without a button operation by detecting ignition-off and detecting that the state of the ignition-off continues for a certain period of time. After starting data transmission, the chances of the vehicle starting to move and failing to transmit data can be reduced. A user change input of transmission start condition is accepted. When transmission starts during data recording, the data recording is ended simultaneously with starting the transmission, eliminating the need of a driver's button operation.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle-mounted device, and more particularly to a technique for transferring recorded operation data to a device outside the vehicle.

  For example, companies that manage the operation of trucks, buses, taxi vehicles, etc. need to manage the operation state of each vehicle, and perform labor management and safe driving management for each crew member driving each vehicle.

  Therefore, an in-vehicle device such as a digital tachograph, which is an operation recorder, is mounted on each vehicle so that the actual operation status of the vehicle can be grasped. Such an in-vehicle device automatically collects various operation data, and records and stores the operation data in a recording medium such as a memory card.

  For example, when a company creates a daily report on the operation of each vehicle as a daily work, generally, a memory card on which operation data is recorded is manually removed from the vehicle-mounted device and taken home to the office. The data is transferred to the management PC in the office. The management PC can extract important data, for example, and create a daily report based on the result by performing predetermined data processing on the operation data read from the memory card. Therefore, each crew member is forced to perform daily operations of attaching and detaching memory cards and carrying them.

  On the other hand, Patent Literature 1 shows a technique for an in-vehicle device to acquire information from a server on the Internet via a repeater and a wireless base station. In addition, a technique for reliably updating provided information without bothering the user is shown. Specifically, the vehicle-mounted device is configured such that when the vehicle ignition SW is turned off, the vehicle is located at a predetermined location, the time is within a predetermined time zone, and the voltage of the RSSI signal is higher than the voltage threshold. If it is larger, the information profile is transmitted to the information management server. Then, after the vehicle-mounted device updates the stored contents of the provided information storage unit with the data received from the information management server, the standby power supply is turned off to stop the vehicle-mounted device.

  Patent Document 2 shows a technique for easily and inexpensively constructing a mobile management system that can monitor the status of a mobile using a wireless transmission / reception device having a wireless LAN function. Specifically, a wireless transmission / reception device arranged on a vehicle or the like includes a sensor that acquires information on a moving object, a position information acquisition unit of the moving object, a time acquisition unit, a clock function unit, a storage unit that accumulates data, A wireless LAN transceiver and a central processing unit are provided. Then, the state, position information, and time information of the measurement target provided in the moving body are wirelessly transmitted.

  Moreover, the vehicle-mounted device of Patent Document 3 shows a technique for easily transferring travel data recorded on a recording medium without removing the recording medium. Specifically, the vehicle-mounted device records traveling data including image data taken at the time of occurrence of a near-miss or the like during traveling of the vehicle along with the time on a memory card. Further, when the vehicle enters the vehicle, the vehicle-mounted device connects to the office-side PC via the wireless LAN, and transmits the traveling data recorded on the memory card to the PC. When the PC finishes receiving the travel data and the like, it instructs the in-vehicle device to initialize the memory card. The PC creates daily reports using travel data and the like, registers them in the storage memory, and deletes unnecessary data from the travel data. When the in-vehicle device receives the initialization instruction, the in-vehicle device initializes the memory card.

JP 2008-261867 A JP 2011-109290 A JP2013-117778A

  For example, when the technique of Patent Document 3 is adopted, the data recorded on the memory card can be transferred from the vehicle-mounted device to the office-side PC using wireless LAN communication. There is no need to remove or carry it from the vehicle-mounted device, reducing the troublesome work of daily operations.

  However, since a system such as Patent Document 3 is configured independently for each company, wireless communication is performed between the vehicle-mounted device and the access point in places other than the vicinity of a specific access point of the wireless LAN. The line cannot be secured. Therefore, when the daily operation of each vehicle ends and enters the warehouse, the vehicle stops within a specific area specified in advance with a good radio reception environment at the access point. Thus, the crew member is required to operate a specific button for starting data transfer. Therefore, it is not necessary to remove or carry the memory card, but the crew member has to perform troublesome work to start data transfer of the vehicle-mounted device.

  Note that, for example, as in Patent Document 1, the vehicle ignition SW is OFF, the vehicle is located at a predetermined location, the time is within a predetermined time zone, and the voltage of the RSSI signal is larger than the voltage threshold. It is also conceivable to start processing automatically based on this. However, since Patent Document 1 is a technology for the vehicle-mounted device to acquire information from an external device, there is a problem in applying it to control for transmitting operation data of the vehicle-mounted device to the external device.

  For example, a situation may be assumed in which the vehicle after operation ends and the engine is turned off (ignition off) and then the engine is turned on immediately and the vehicle starts moving again. Further, since the operation data stored in a recording medium such as a memory card has a very large amount of information, the time required for data transfer tends to be long. Therefore, if the transfer of operation data is automatically started according to the conditions as in Patent Document 1, the vehicle may move out of the communication area before the operation data transfer ends. Therefore, there is a possibility that the transfer of operation data may fail. Further, when the transfer of the operation data fails, the crew member has to perform troublesome work such as removal and carrying of the memory card.

  The present invention has been made in view of the above-described circumstances, and its purpose is to eliminate troublesome operations such as a button operation of a crew member for data transfer at the time of warehousing, and the possibility of failure of data transfer work. An object of the present invention is to provide a vehicle-mounted device capable of greatly reducing the performance.

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 operation data acquisition unit that automatically collects operation data related to the operation of the vehicle on the vehicle, records it in a predetermined recording medium, and holds it;
A communication unit having a wireless communication function for the device on the vehicle to communicate with a wireless access point outside the vehicle;
A communication control unit that starts transmission of the operation data held by the operation data acquisition unit to a predetermined destination using wireless communication of the communication unit when a predetermined transmission start condition is satisfied;
With
The communication control unit detects, as the transmission start condition, that at least the ignition of the vehicle is off and that a certain time has passed since the ignition was turned off.
In-vehicle device characterized by that.

(2) The communication control unit detects, as the transmission start condition, that at least the operation data acquisition unit is recording operation data on the recording medium,
The vehicle-mounted device according to (1) above, wherein

(3) The communication control unit detects, as the transmission start condition, that at least the communication unit is connected to a predetermined wireless access point and / or that the received signal strength is equal to or higher than a predetermined value.
The on-vehicle device according to (1) or (2) above, wherein

(4) The communication control unit accepts user input related to switching or changing the transmission start condition.
The on-vehicle device according to any one of (1) to (3) above,

  According to the vehicle-mounted device having the above configuration (1), transmission of operation data can be started after a predetermined time has elapsed since the ignition of the vehicle-mounted device is turned off. Therefore, for example, when the engine is stopped for a short time after entering the vehicle and the engine is started again, the operation data transmission is not started, and the interruption of communication during the data transmission can be avoided. . If ignition remains off even after a certain period of time has passed since the on-vehicle ignition is turned off, the possibility that the vehicle will start in a short period of time is small. However, transmission can be completed while maintaining a stable communication state.

  According to the vehicle-mounted device having the configuration (2), transmission of operation data can be started during operation data recording. Accordingly, transmission of operation data can be started without special operation as a part of the work before the day's work of the crew member on board the vehicle ends.

  According to the vehicle-mounted device having the configuration (3), since transmission of operation data can be started when the communication unit is connected to a predetermined wireless access point, it is possible to prevent occurrence of useless operations outside the communication area. Moreover, since transmission of operation data can be started when the received signal strength is greater than or equal to a predetermined value, occurrence of communication errors can be suppressed.

  According to the vehicle-mounted device having the configuration (4), the transmission start condition is optimized according to the actual work environment of the user of the company or the like who manages the vehicle or the crew or according to the behavior pattern of each crew. can do.

  According to the vehicle-mounted device of the present invention, it is possible to eliminate a troublesome operation such as a button operation of a crew member for data transfer at the time of warehousing, and to greatly reduce the possibility of failure of the data transfer operation.

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

FIG. 1 is a block diagram illustrating a configuration example of a system used for vehicle operation management. FIG. 2 is a block diagram illustrating a specific example of a use environment of the system illustrated in FIG. FIG. 3 is a flowchart showing a state of the vehicle-mounted device and a characteristic operation example according to the embodiment of the present invention. FIG. 4 is a flowchart showing processing in the condition adjustment mode of the vehicle-mounted device in the embodiment of the present invention.

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

<System configuration example>
A configuration example of a system used for vehicle operation management is shown in FIG. The operation management system 5 of the present embodiment is introduced as equipment of a business operator such as a trucking company or a bus company. The operation management system 5 manages the operation status of vehicles such as trucks and buses, and is an operation recording device (hereinafter referred to as a digital tachograph) 10 and an office PC 30 that are used in each vehicle as a vehicle-mounted device. Including.

  The office PC 30 is composed of a general-purpose computer device installed in the office, and manages the operation status of the vehicle. The network 70 is a local network (LAN) capable of packet communication, and includes a wireless LAN access point 8. The office PC 30 is connected to the access point 8 via the network 70.

  The digital tachograph 10 is mounted on a vehicle, and records operation data such as entry / exit time, travel distance, travel time, travel speed, speed over, engine speed over, sudden start, sudden acceleration, sudden deceleration. The digital tachograph 10 includes a CPU 11, a nonvolatile memory 26 </ b> A, a volatile memory 26 </ b> B, a recording unit 17, a card I / F 18, an audio I / F 19, an RTC (clock IC) 21, a SW input unit 22, and a display unit 27.

  The CPU 11 comprehensively controls each part of the digital tachograph 10. The nonvolatile memory 26A stores an operation program executed by the CPU 11.

  The recording unit 17 records data such as operation data and video. A memory card 65 possessed by a crew member is detachably connected to the card I / F 18. The CPU 11 writes data such as operation data and video to the memory card 65 connected to the card I / F 18. A built-in speaker 20 is connected to the audio I / F 19. The speaker 20 emits sound such as an alarm.

  The RTC 21 (timer) keeps the current time. The SW input unit 22 is input with ON / OFF signals of various buttons such as a warehousing button and a warehousing button. The display unit 27 is composed of a liquid crystal display (LCD) and displays alarms and the like in addition to communication and operation states.

  The digital tachograph 10 includes a speed I / F 12A, an engine rotation I / F 12B, an external input I / F 13, a sensor input I / F 14, an analog input I / F 29, a GPS receiver 15, a camera I / F 16, a communication unit 24, and A power supply unit 25 is included.

  A vehicle speed sensor 51 that detects the vehicle speed is connected to the speed I / F 12A, and a speed pulse from the vehicle speed sensor 51 is input. The vehicle speed sensor 51 may be provided as an option in the digital tachograph 10 or may be provided as a device different from the digital tachograph 10. A rotation pulse from an engine rotation speed sensor (not shown) is input to the engine rotation I / F 12B. An external device (not shown) is connected to the external input I / F 13.

  The sensor input I / F 14 is connected to an acceleration sensor (G sensor) 28 that detects acceleration (G value) (senses an impact), and receives a signal from the G sensor 28. Examples of the G sensor include those having a method of reading mechanical displacement due to acceleration as vibration or a method of optically reading, but are not particularly limited. The G sensor detects an impact from the front of the vehicle (detects a deceleration G), may also detect an impact from the left and right directions (detects a lateral G), or an impact from the rear of the vehicle. May be detected (acceleration G may be detected). The G sensor is composed of one or a plurality of sensors so that these accelerations can be detected.

  Signals such as a temperature sensor (not shown) for detecting the engine temperature (cooling water temperature) and a fuel amount sensor (not shown) for detecting the fuel amount are input to the analog input I / F 29. CPU11 detects various driving | running states based on the information input via these I / F.

  The GPS receiver 15 is connected to the GPS antenna 15a, receives a signal transmitted from a GPS satellite, and acquires a current position (GPS position information).

  Connected to the camera I / F 16 is an in-vehicle camera 23 that is installed in the vehicle and captures image data by imaging the periphery (for example, the front) of the vehicle. The in-vehicle camera 23 includes an image sensor in which, for example, 300,000, 1,000,000, and 2,000,000 pixels are arranged on an imaging surface that is imaged through a fisheye lens. The image sensor includes a known sensor such as a CMOS (complementary metal oxide semiconductor) sensor or a CCD (charge coupled device) sensor. The video (image data) captured by the in-vehicle camera 23 is recorded in time series in the recording unit 17, but is repeatedly overwritten so as to be recorded for a predetermined time. The predetermined time is a time corresponding to several seconds (for example, 2 seconds, 4 seconds, 10 seconds, etc.) before and after the accident so that the situation of the accident can be understood when the accident occurs. The image captured by the camera 23 may be a still image or a moving image. The video before and after the occurrence of the accident is displayed on the display unit 33 of the office PC 30 as will be described later.

  Further, the in-vehicle camera 23 may be provided in a plurality so as to be able to image the rear, left side, and right side of the vehicle in addition to the front of the vehicle, or one image sensor that images each direction. What was accommodated in the housing | casing may be used. Therefore, the in-vehicle camera 23 can simultaneously capture a left-right image and a rear image in addition to the image in front of the vehicle.

  In addition, the vehicle-mounted camera 23 may be able to capture an image in an arbitrary angle direction (for example, 45 ° direction), not limited to imaging in the front, left and right directions, and rear of the vehicle. Moreover, the vehicle-mounted camera 23 may be provided with an infrared camera so that it can image at night besides imaging visible light.

  The communication unit 24 is a wireless communication module that supports a wireless LAN communication standard, and can secure a wireless communication line with a predetermined access point. In this embodiment, when the digital tachograph 10 exists within a predetermined range (for example, a range of about 100 m in radius) from the access point 8 installed in the vicinity of the office, the communication unit 24 can be connected to the access point 8. become.

  The power supply unit 25 supplies power to each unit of the digital tachograph 10 when the ignition switch is turned on. In addition, a binary signal indicating the on / off state of the ignition switch is output to the CPU 11.

  In this embodiment, after the vehicle arrives, the operation data related to the operation operation of the day held by the memory card 65 or the like is transferred to the office PC 30 via the communication unit 24, the access point 8, and the network 70. The CPU 11 has a function of the communication control unit 11a for this purpose. Moreover, this communication control part 11a can start transmission of operation data automatically. Data representing a condition for automatically starting transmission of operation data is held in the transmission condition table TB1.

  This transmission condition table TB1 may be assigned to a storage area on the nonvolatile memory 26A, for example, or may be assigned to a storage area on the memory card 65. However, it is desirable to arrange the transmission condition table TB1 in a storage area such as a flash memory where data can be rewritten so that the user can change the transmission conditions as necessary.

The transmission condition table TB1 holds the following data DC1 to DC5, for example.
DC1: Data representing validity / invalidity of setting one condition that the ignition is switched from on to off.
DC2: Data representing validity / invalidity that one condition is that the time during which the ignition-off state continues is a fixed time (T seconds). Data of a fixed time (T seconds) is also included.
DC3: Data representing the validity / invalidity of having one condition that the operation data is being recorded.
DC4: Data representing the validity / invalidity of making it one condition to be connected to an access point.
DC5: Data representing validity / invalidity that one condition is that the received signal strength (RSSI) is equal to or greater than a threshold value. Also includes RSSI threshold data.

  Further, the transmission condition table TB1 also holds data of the whole logical expression indicating that the five conditions of the data DC1 to DC5 are combined by logical product (AND) or logical sum (OR).

  The CPU 11 has a function of a condition adjustment mode for updating the contents of the transmission condition table TB1 in accordance with a user instruction.

  On the other hand, the office PC 30 is configured by a PC that operates on a general-purpose operating system. The office PC 30 functions as an operation management device and includes a CPU 31, a communication unit 32, a display unit 33, a storage unit 34, a card I / F 35, an operation unit 36, an output unit 37, a voice I / F 38, and an external I / F 48. .

  The CPU 31 comprehensively controls each unit of the office PC 30. The communication unit 32 can communicate with the digital tachograph 10 via the network 70. Further, the communication unit 32 can be connected to various databases (not shown) connected to the network 70 and can acquire necessary data.

  In addition to the operation management screen, the display unit 33 displays an accident video, a hazard map, and the like. The storage unit 34 stores various programs such as system analysis software for displaying images received from the digital tachograph 10 and displaying vehicle position information on a map.

  A memory card 65 is detachably attached to the card I / F 35. The card I / F 35 receives operation data measured by the digital tachograph 10 and stored in the memory card 65. The operation unit 36 includes a keyboard, a mouse, and the like, and accepts operations of an office manager. The output unit 37 outputs various data. A microphone 41 and a speaker 42 are connected to the audio I / F 38. The manager of the office can also make a voice call using the microphone 41 and the speaker 42. When a vehicle accident occurs, the manager of the office makes an emergency call or contacts the police.

  In this embodiment, since the operation data held in the memory card 65 can be transferred to the office PC 30 by using the wireless LAN communication function, it is not necessary to remove the memory card 65 from the digital tachograph 10. Further, the card I / F 35 of the office PC 30 can be omitted.

  An external storage device (storage memory) 54 is connected to the external I / F 48. The external storage device 54 stores an accident point database (DB) 55, an operation data DB 56, and a hazard map DB 57. In the accident point database (DB) 55, GPS position information (latitude and longitude) of the vehicle at the time of the accident transmitted from the digital tachograph 10 is registered. In the operation data DB 56, as the operation data, in addition to loading / unloading time, speed, travel distance, etc., rapid acceleration / deceleration, sudden steering, speed over, engine speed over, etc. are recorded. Registered in the hazard map DB 57 is map data in which marks representing points where accidents have occurred in the past (accident points) are superimposed on the map. In addition, the hazard map may describe an area where a disaster such as a natural disaster is expected, an evacuation site, or the like.

<Specific examples of system usage environment>
A specific example of the use environment of the system shown in FIG. 1 is shown in FIG.
The digital tachograph 10 is mounted on the vehicle 81 and is disposed at a position where the driver can operate. The front panel of the digital tachograph 10 is provided with a plurality of buttons 22a and a display unit 33 that can be operated by the driver.

  For example, as shown in FIG. 2, the vehicle 81 that comes in after the operation work on that day passes through the entrance gate 82 and enters the company site, and moves to a predetermined parking lot and parks. In the example of FIG. 2, the office PC 30 is installed inside the office building 83, and the access point 8 is installed near the office building 83.

  When the parking lot exists near the access point 8, the digital tachograph 10 can connect a line with the access point 8 while the vehicle 81 is parked in the parking lot. However, since the received vehicle 81 may move temporarily for some work, the radio wave of the access point 8 does not always reach the digital tachograph 10 that has been received.

  If the incoming vehicle 81 stays at the same place where the radio waves of the access point 8 reach for a long time, the access point 8 can use the large-capacity operation data recorded by the digital tachograph 10 on the memory card 65 or the like. Can be transferred to the office PC 30. However, for example, when the vehicle 81 starts to move before the operation data transfer is completed, there is a possibility that the wireless communication line between the digital tachograph 10 and the access point 8 is disconnected and the operation data transfer fails. is there.

  Since the communication control unit 11a of the digital tachograph 10 starts the transfer of operation data in an appropriate state, a failure in data transfer can be avoided. Further, when the communication control unit 11a automatically starts to transfer operation data, the driver's button operation or the like is not necessary.

<Operation example of OBE>
FIG. 3 shows a state and a characteristic operation example of the digital tachograph 10 in the embodiment of the present invention.

  When the operation of the vehicle 81 on the current day is completed and the vehicle 81 is received as shown in FIG. 2, for example, the operation data and the like recorded on the memory card 65 of the digital tachograph 10 are transferred to the office PC 30 side. Need to transfer. The office PC 30 can create a daily report on the day-to-day operation of the corresponding crew member or vehicle by acquiring operation data from the digital tachograph 10 of each vehicle.

  In the present embodiment, since the digital tachograph 10 of each vehicle includes the communication unit 24 having a wireless LAN function, the digital tachograph 10 is connected to the office by wirelessly connecting the communication unit 24 and the access point 8. Data transfer to the PC 30 becomes possible.

  Accordingly, the driver of each vehicle that enters the vehicle drives the vehicle and moves to a predetermined communication area where the radio waves of the access point 8 reach (S11). For example, the vehicle is stopped at a predetermined parking lot in a site of a specific company. Then, the driver turns off the ignition switch of the own vehicle and stops the engine of the vehicle (S12).

  In the case of a general digital tachograph, after step S12, the driver needs to make a determination and button operation to instruct the start of data transfer. However, in the digital tachograph 10 of this embodiment, since the communication control unit 11a has a function for automatically starting data transfer, the driver does not need to perform a button operation. That is, the communication control unit 11a of the CPU 11 can automatically instruct the start of data transfer by executing the process PR1 shown in FIG.

  Further, the contents of the process PR1 shown in FIG. 3 are determined according to the contents of the data held in the transmission condition table TB1. That is, the content of the process PR1 shown in FIG. 3 is an example, and the actual determination condition may change according to the content of the above-described data DC1 to DC5. The process PR1 shown in FIG. 3 will be described below.

  As a first condition, the communication control unit 11a identifies in S13 whether or not the engine state has been switched from on to off. In practice, the engine state is identified by turning on and off the ignition switch. This condition corresponds to the contents of the data DC1 on the transmission condition table TB1.

  As a second condition, the communication control unit 11a identifies in S15 whether or not the engine is kept off (S14) and whether the elapsed time after turning off has reached a certain time (T seconds). . This condition corresponds to the contents of the data DC2 on the transmission condition table TB1.

  The communication control unit 11a identifies whether or not the recording unit 17 is recording data as the third condition (S16), and the communication unit 24 connects the wireless line to the access point 8 as the fourth condition. Whether it is medium or not is identified (S16). Here, the third condition and the fourth condition correspond to the contents of the data DC3 and DC4 on the transmission condition table TB1, respectively.

  In addition, as a fifth condition, the communication control unit 11a identifies whether the wireless LAN received signal strength (RSSI) in the communication unit 24 is good or not by comparing with a threshold value in S17. The fifth condition corresponds to the content of the data DC5 on the transmission condition table TB1.

  In the process PR1 shown in FIG. 3, the process proceeds to S18 only when all of the first to fifth conditions are satisfied. In step S18, the communication control unit 11a performs data communication processing for transferring operation data and the like recorded on the memory card 65 and the like to the office PC 30 via the communication unit 24, the access point 8, and the network 70. Instruct the start of.

  Further, when data communication is started in S18, the communication control unit 11a stops the recording operation by the recording unit 17. That is, the start of data communication automatically recognizes that the current day's operation has been completed, and even if there is no special button operation input by the driver, the recording unit 17 forcibly records the data. finish. Therefore, the button operation by the driver is not required at the end of the operation work, and the non-operation mode can be realized.

  When the data communication started in S18 is completed in a normal state, the communication control unit 11a proceeds from S19 to S20. In step S20, the communication control unit 11a displays a message indicating that the transmission of the operation data is completed on the screen of the display unit 33 of the digital tachograph 10, and outputs a similar message by voice to notify the driver. .

<Significance of each transmission condition>
Employing each of the first condition to the fifth condition in the process PR1 shown in FIG. 3 has the following significance.

First condition (DC1): Unintentional communication that can occur when the operation recorder is activated can be avoided.
Second condition (DC2): It is possible to exclude a situation in which the engine of the vehicle is stopped for a short time and the engine is immediately restarted to start moving. That is, when there is a possibility that the vehicle may move to an area where communication cannot be performed after data transfer is started, communication is not started in order to avoid the failure of data transfer in the middle.
Third condition (DC3): Operation data can be transferred as part of the operation of the vehicle. Furthermore, since the end of the operation service can be automatically identified, it can be used to eliminate the need for the driver's button operation to instruct the end of the operation service.
Fourth condition (DC4): When the vehicle is located outside the communication area of the access point 8, it is possible to avoid the communication unit 24 from repeatedly trying to connect to the wireless line.
Fifth condition (DC5): The occurrence of a communication error can be suppressed.

<Condition adjustment mode>
FIG. 4 shows a process in the condition adjustment mode of the vehicle-mounted device in the embodiment of the present invention.
The digital tachograph 10 shown in FIG. 1 can accept an input for the user to change the contents of the transmission condition table TB1 as necessary. That is, the CPU 11 can update the contents of the transmission condition table TB1 by executing the process of the condition adjustment mode shown in FIG. Thereby, for example, it becomes possible to optimize the system in consideration of the difference in the actual operational environment in each company and the difference in the behavior pattern of each crew member. The contents of the process of FIG. 4 will be described below.

  For example, when the user performs a special operation such as pressing and holding a specific button 22a for 5 seconds, the CPU 11 detects this in S31 and S32, regards it as an adjustment mode start instruction, and proceeds to S33.

  The CPU 11 further monitors the button operation of the user to identify the presence / absence of a transmission start condition combination change instruction in S33. If there is an instruction to change the combination of transmission start conditions, the process proceeds to S34, and the CPU 11 changes the content of the combination of transmission start conditions on the transmission condition table TB1 according to the user's input operation, and sends the changed data to the transmission condition table TB1. Save to.

  Thereby, the user changes the validity / invalidity of each condition of the data DC1 to DC5 on the transmission condition table TB1 and the combination of the logical product (AND) or the logical sum (OR) of the five conditions of the data DC1 to DC5. can do.

  Further, the CPU 11 further monitors the button operation of the user to identify the presence / absence of an instruction to adjust the engine off time length (T seconds) in S35. If there is an instruction to adjust the engine off time length, the process proceeds to S36, and the CPU 11 changes the engine off time length related to the condition of the data DC2 on the transmission condition table TB1 according to the input operation of the user, and transmits the changed data. Save in the condition table TB1.

  Further, the CPU 11 further monitors the button operation of the user to identify the presence / absence of an RSSI threshold change instruction in S37. If there is an instruction to change the RSSI threshold, the process proceeds to S38, and the CPU 11 changes the content of the RSSI threshold data related to the condition of the data DC5 on the transmission condition table TB1 and transmits the changed data according to the input operation of the user. Save in the condition table TB1.

  Further, the CPU 11 further monitors the button operation of the user to identify whether or not it is an instruction to end the adjustment mode in S39. If it is an end instruction, the CPU 11 ends the processing of FIG. 4 and returns to the normal operation mode.

<Advantages of digital tachograph 10>
The above-described digital tachograph 10 can save the operation data recorded in the memory card 65 or the like on the wireless LAN even if the driver does not perform a special button operation or the like when the operation is completed on the day and the vehicle is stored. It can be transferred to the office PC 30 using the access point 8. Moreover, since the communication control unit 11a starts transmission at an appropriate transmission start timing according to the contents of the transmission condition table TB1, transmission failures can be reduced. For example, even if the ignition of the vehicle is off, transmission is not started in a situation where there is a high possibility that the vehicle will start moving again, so that it is possible to avoid stopping data transfer in the middle.

  Further, since the CPU 11 accepts a user input operation for changing the contents of the transmission condition table TB1 and executes the operation shown in FIG. 4, the transmission start condition can be changed for each user as necessary. . That is, for example, it is possible to optimize the system in consideration of differences in actual operating environments in each company and differences in behavior patterns of crew members.

  In the above-described embodiment, it is assumed that the vehicle-mounted device is the digital tachograph 10, but the present invention can also be applied to a vehicle-mounted device other than the digital tachograph 10, for example, a drive recorder. Further, the present invention may be applied to a vehicle-mounted device in which a digital tachograph and a drive recorder are integrated.

Here, the features of the vehicle-mounted device according to the embodiment of the present invention described above are briefly summarized and listed in the following [1] to [4], respectively.
[1] An operation data acquisition unit (recording unit 17) that automatically collects operation data related to the operation of the vehicle on a vehicle and records and stores the operation data in a predetermined recording medium;
A communication unit (24) having a wireless communication function for a device on the vehicle to communicate with a wireless access point outside the vehicle;
A communication control unit (11a) for starting transmission of the operation data held by the operation data acquisition unit to a predetermined destination using wireless communication of the communication unit when a predetermined transmission start condition is satisfied;
With
The communication control unit detects, as the transmission start condition, that at least the ignition of the vehicle is off and that a certain time has elapsed since the ignition was turned off (S13 to S15).
Onboard equipment (digital tachograph 10) characterized by the above.

[2] The communication control unit detects that at least the operation data acquisition unit is recording operation data on the recording medium as the transmission start condition (S16),
The on-vehicle device according to [1] above, wherein

[3] The communication control unit, as the transmission start condition, at least the communication unit is connected to a predetermined wireless access point (S16), and / or the received signal strength is equal to or higher than a predetermined value (S17). Detect,
The on-vehicle device according to the above [1] or [2], wherein

[4] The communication control unit allows user input regarding switching or changing of the transmission start condition (S34, S36, S38),
The vehicle-mounted device according to any one of [1] to [3], wherein

5 Operation management system 8 Access point 10 Digital tachograph 11, 31 CPU
11a Communication control unit 12A Speed I / F
12B Engine rotation I / F
13 External input I / F
14 Sensor input I / F
15 GPS receiver 15a GPS antenna 16 Camera I / F
17 Recording unit 18 Card I / F
19 Voice I / F
20, 42 Speaker 21 RTC
22 SW input part 22a Button 23 Car-mounted camera 24, 32 Communication part 25 Power supply part 26A Nonvolatile memory 26B Volatile memory 27 Display part 28 G sensor 29 Analog input I / F
30 office PC
33 Display unit 34 Storage unit 35 Card I / F
36 Operation unit 37 Output unit 38 Audio I / F
41 Microphone 48 External I / F
51 Vehicle speed sensor 54 External storage device 55 Accident point DB
56 Operation data DB
57 Hazard Map DB
65 Memory card 70 Network 81 Vehicle 82 Entrance gate 83 Office building PR1 Processing TB1 Transmission condition table

Claims (4)

An operation data acquisition unit for automatically collecting operation data related to the operation of the vehicle on the vehicle and recording and storing the operation data in a predetermined recording medium;
A communication unit having a wireless communication function for the device on the vehicle to communicate with a wireless access point outside the vehicle;
A communication control unit that starts transmission of the operation data held by the operation data acquisition unit to a predetermined destination using wireless communication of the communication unit when a predetermined transmission start condition is satisfied;
With
The communication control unit detects, as the transmission start condition, that at least the ignition of the vehicle is off and that a certain time has passed since the ignition was turned off.
In-vehicle device characterized by that. The communication control unit detects, as the transmission start condition, that at least the operation data acquisition unit is recording operation data on the recording medium,
The on-vehicle device according to claim 1. The communication control unit detects, as the transmission start condition, that at least the communication unit is connected to a predetermined wireless access point and / or that the received signal strength is equal to or higher than a predetermined value.
The on-vehicle device according to claim 1, wherein the vehicle-mounted device is provided. The communication control unit accepts user input related to switching or changing the transmission start condition;
The on-vehicle device according to any one of claims 1 to 3, wherein

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