JP2020008986A - Vehicle information management system - Google Patents

Abstract

To provide a vehicle information management system capable of reducing a data amount of information related to a vehicle travel state and also facilitating performance of a travel state analysis work or the like.SOLUTION: A vehicle information management system S1 includes: information recording means 17 mounted on a vehicle so as to record information related to a vehicle travel state; transmission means 24 for transmitting information recorded in the information recording means; transmission control means 11 for controlling transmission processing of the transmission means; reception means 101 for receiving information to be transmitted from the transmission means; and information storage means 102 for storing information D10 received by the reception means. The transmission control means includes distance determination means 50 for determining whether or not a travel distance to be acquired based on information has reached a predetermined distance. The transmission control means performs control to transmit information related to a vehicle travel state at a time point when a travel distance is determined to reach a predetermined distance whenever the distance determination means determines that a travel distance reaches the predetermined distance.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle information management system that manages information about vehicles.

  2. Description of the Related Art Conventionally, there have been proposed various technologies related to vehicle information management in which an onboard device such as a digital tachograph is mounted on a vehicle such as a transportation truck, information about a running state is recorded, and the information is transmitted to a server for management. Reference 1).

JP-A-2006-103267

  By the way, conventionally, the vehicle-mounted device has transmitted information on the running state of the vehicle every time a predetermined time elapses (for example, every minute).

  That is, as illustrated in FIG. 9A, in the mechanism of transmitting information at regular time intervals (T50), when the vehicle V10 runs at a relatively low speed, information is frequently transmitted. (In FIG. 9A, for example, a total of three transmissions are performed between the point A and the point B).

  Therefore, similar information is stored in a plurality of times in the server, and there is a disadvantage that the data amount increases.

  Conversely, as shown in FIG. 9B, when the vehicle V10 travels at a relatively high speed on an expressway or the like, the data interval becomes wide (in FIG. There is a problem that the transmission is performed only twice in total between the points), and the result of the analysis of the running state and the like becomes rough.

  As illustrated in FIG. 10, when displaying the information on the traveling state on the map M10, the interval between the data plots (d21 to d36) becomes narrower or wider during low-speed running and during high-speed running. Therefore, there is a problem that it is difficult to see because of lack of uniformity, and there is a problem that it is difficult to perform a running state analysis work.

  In particular, if the information is transmitted at regular intervals in a state where the vehicle V10 is stopped, a plurality of plots are provided at the same location, such as the data plots d24, d25 or d33 to d35 in FIG. There is an inconvenience that the information is displayed in an overlapped state and becomes more difficult to see.

  The present invention has been made in view of the above-described problems, and provides a vehicle information management system that can reduce the data amount of information related to a traveling state of a vehicle and can easily perform a work of analyzing a traveling state. With the goal.

  In order to achieve the above object, a vehicle information management system according to the present invention includes an information recording unit mounted on a vehicle for recording information on a traveling state of the vehicle, and a transmission for transmitting the information recorded on the information recording unit. Means, transmission control means for controlling transmission processing of the transmission means, reception means for receiving the information transmitted from the transmission means, and information storage means for storing the information received by the reception means. In the vehicle information management system provided, the transmission control unit includes a distance determination unit that determines whether a traveling distance obtained based on the information has reached a preset distance, the transmission control unit includes: Each time the distance determination means determines that the preset distance has been reached, control is performed so as to transmit information on the traveling state of the vehicle at that time. That.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a vehicle information management system that can reduce the data amount of information relating to the traveling state of a vehicle and can easily perform an analysis operation of the traveling state.

It is a functional block diagram showing the functional composition of the vehicle information management system concerning an embodiment. It is a block diagram showing the example of composition of the digital tachograph as an in-vehicle device applied to the vehicle information management system concerning an embodiment. It is a front view showing the schematic structure of the digital tachograph as an in-vehicle device applied to the vehicle information management system concerning an embodiment. It is a flowchart which shows the processing procedure of the information transmission process performed by the vehicle information management system which concerns on embodiment. It is explanatory drawing which shows the example of the transmission state of the information at the time of driving | running | working in fine weather. It is explanatory drawing which shows the example of the transmission state of information at the time of driving | running | working in bad weather conditions. It is explanatory drawing which shows the example of the transmission state of the information at the time of a stop. It is explanatory drawing which shows the example of the plot state of the received information. It is explanatory drawing (a) which shows the example of the information transmission state at the time of low speed driving | running in the prior art, and is explanatory drawing (b) which shows the example of the information transmission state at the time of high speed driving | running | working. FIG. 11 is an explanatory diagram illustrating an example of a plot state of received information in the related art.

[Embodiment]
A vehicle information management system S1 according to an embodiment of the present invention will be described with reference to FIGS.

(Functional configuration of vehicle information management system)
The functional configuration of vehicle information management system S1 according to the present embodiment will be described with reference to the functional block diagram of FIG.

  The vehicle information management system S1 according to the present embodiment transmits the information D10 recorded in the information recording unit 17 and the recording unit 17 mounted on the vehicle and recording information on the running state of the vehicle. The communication unit 24 includes a communication unit 24 serving as a transmission unit that performs transmission, and a transmission control unit 11 that includes a CPU or the like that controls transmission processing of the transmission unit 24.

  In the present embodiment, the information recording unit 24 and the transmission unit 11 are mounted on a vehicle and can record, as information relating to the traveling state of the vehicle, time and operation data including a vehicle speed and a traveling distance at each time. It is composed of a digital tachograph DT1 as a vessel. A configuration example of the digital tachograph DT1 will be described later.

  In the present embodiment, it is assumed that a plurality of vehicles are operated and each vehicle is equipped with a digital tachograph DT1.

  Further, the server 100 forming a part of the vehicle information management system S1 includes a receiving unit 101 that receives the information D10 transmitted from the transmitting unit 24, a hard disk device that stores the information received by the receiving unit 101, and the like. And information storage means 102 to be executed.

  Further, the transmission control means 11 of the digital tachograph DT1 as the on-vehicle device includes the distance determination means 50 for determining whether or not the traveling distance acquired based on the information D10 has reached a preset distance.

  Then, each time the distance determining means 50 determines that the distance has reached the preset distance, the transmission control means 11 controls to transmit information D10 relating to the running state of the vehicle at that time.

  This makes it possible to reduce the data amount of the information on the traveling state of the vehicle. A specific example of the transmission state will be described later.

  Further, the transmission control means 11 further includes a lapse determination means 51 for determining whether or not a preset time has elapsed.

  Then, the transmission control means 11 can control to transmit the information D10 relating to the running state of the vehicle at that time when the elapsed time determination means 51 determines that the preset time has elapsed when the vehicle stops.

  Thus, it is possible to avoid a situation in which similar information is frequently transmitted when the vehicle stops.

  In order to prevent a temporary stop state due to a signal waiting or the like from being determined as a vehicle stop, for example, a case where the vehicle has not traveled for about 10 minutes from the travel state may be determined as “the vehicle is stopped”.

  In addition, the digital tachograph DT1 as an on-vehicle device further includes a weather information acquisition unit 52 that acquires weather information (D20) from an external weather information distribution system 200 or the like.

  Then, the distance determination unit 50 can change the preset distance to be extended or shortened based on the weather information D20.

  Thereby, for example, when it is determined that the weather condition is good and there is little hindrance to driving, the distance set in advance can be extended so that the transmission interval of the information D10 about the traveling state of the vehicle can be adjusted to be longer. .

  In addition, for example, when it is determined that the weather is severely hindered by driving, the distance set in advance is shortened, and the transmission interval of the information D10 on the traveling state of the vehicle is adjusted so as to be shorter. Data can be obtained more finely.

  It should be noted that the weather information distribution system 200 and the like are configured to, for example, distribute the quality of the weather as an evaluation value of a plurality of levels in addition to the normal weather data (information on fine weather, rain, heavy rain, snow, etc.). Thus, a preset distance can be changed based on the evaluation value.

  Further, the elapse determination unit 51 may change the preset time based on the weather information D20 so as to extend or shorten the preset time. This makes it possible to appropriately change the transmission interval of the information D10 relating to the traveling state of the vehicle based on the weather information D20 when the vehicle is stopped.

  The information D10 relating to the running state of the vehicle is transmitted even when the vehicle is stopped. If the transmission of the information D10 is completely stopped while the vehicle is stopped, the real-time operation of the vehicle management is impaired. However, this is to avoid a situation where the status of the vehicle cannot be confirmed.

  The weather information is not limited to the case where the weather information is distributed from the weather information distribution system 200, and may be distributed from an office of each transportation company.

(Configuration example of on-board unit (digital tachograph))
A configuration example of the vehicle-mounted device (digital tachograph) DT1 will be described with reference to FIGS.

  FIG. 2 is a block diagram showing a configuration example of a digital tachograph DT1 as an on-vehicle device applied to the vehicle information management system S1, and FIG. 3 is a front view showing a schematic configuration of the digital tachograph DT1.

  The digital tachograph DT1 as the on-vehicle device shown in FIG. 2 is mounted on a commercial vehicle such as a truck, for example, and includes operation data including operation data indicating an operation state such as engine over speed, sudden start, sudden acceleration, sudden deceleration, and the like. It is recorded for each time.

  The digital tachograph DT1 includes a CPU 11, a speed / engine speed I / F 12, an external input I / F 13, a sensor input I / F 14, a GPS receiving unit 15, a CAN_I / F 16, a recording unit 17, a card I / F 18, and a voice I / F 19. , Speaker 204, RTC (clock IC) 21, exit / entry button SW input unit 22, display controller 23, communication unit 24, power supply unit 25, memory 26, LED display unit 27, training button SW input unit 30, and land transportation ON / An OFF button SW input unit 31 is provided.

  The CPU 11 is a control unit constituted by a microcomputer, and controls the entire digital tachograph DT1 according to a program. A program executed by the CPU 11 and data such as constants necessary for control are stored in the memory 26. The memory 26 is nonvolatile, and can read and write data.

  On the memory 26, two threshold tables 26a and 26b and an area information table 26c are stored as constant data. In the two threshold tables 26a and 26b, thresholds (set values) that are compared with values representing speed, engine speed, and the like and serve as references for evaluating driving are registered. The area information table 26c holds information indicating the position of a specific area and its range.

  The recording unit 17 is a nonvolatile memory that can read and write data, and is used for recording and holding operation data. The recording unit 17 also stores data of the driving history of the past traveling as a history table 17a. The location, speed, engine speed, and fuel efficiency are registered in the history table 17a.

  The card I / F (interface) 18 is an interface for connecting a memory card conforming to a predetermined standard to the CPU 11, and has a card slot for detachably holding the memory card. A predetermined memory card 55 possessed by each crew driving a commercial vehicle is attached to the card I / F 18. The memory card 55 has a built-in nonvolatile memory, and is used in a state in which a number for identifying each crew member is registered.

  The audio I / F 19 is an interface for synthesizing and outputting a pseudo audio signal, and can output audio signals corresponding to various messages under the control of the CPU 11. A speaker 204 is connected to the output of the audio I / F 19.

  The RTC (real-time clock) 21 keeps track of information on the current time by constantly counting predetermined clock pulses. The RTC 21 also has a timer function. By controlling the RTC 21, the CPU 11 can acquire information on the current time and use a timer.

  The ON / OFF signal of the exit / entry button is input to the exit / entry button SW input unit 22. Accordingly, the CPU 11 monitors the ON / OFF state of the exit / entry button via the exit / entry button SW input unit 22 and can grasp which state of the vehicle is the exit / entry state.

  The display controller 23 controls display contents of the display 205. The display 205 is composed of, for example, a liquid crystal display device, an organic EL display device, or the like, and can display various kinds of information such as the contents of questions, etc., with a graphic display. The CPU 11 can control the display unit 205 to display the received weather information and the like via the display controller 23.

  The LED display unit 203 incorporates a plurality of LEDs (light emitting diodes), and can turn on, off, or blink each LED under the control of the CPU 11 to display the state of communication and operation.

  The land transportation ON / OFF button SW input unit 31 is operated by a crew member, an operator, or the like, and is used to manually switch on / off the land transportation mode.

  The speed / engine rotation I / F 12 receives a speed pulse and a rotation pulse from a vehicle speed sensor and an engine speed sensor, respectively. The speed / engine speed I / F 12 converts the input signal into a signal suitable for processing by the CPU 11.

  The external input I / F 13 is an interface for connecting an external device to the CPU 11, and can connect a receiving device for the weather information D20 and the like.

  The sensor input I / F 14 is an interface for connecting various sensors to the CPU 11. As the input of the sensor input I / F 14, signals such as a temperature sensor for detecting an engine temperature, a fuel sensor for detecting a fuel amount, a G sensor for detecting an impact (G value) applied to the vehicle, and a blinker SW are input.

  The GPS receiving unit 15 receives radio waves from a plurality of GPS (Global Positioning System) satellites with the GPS antenna 15a, performs predetermined calculation processing, and acquires information on the latitude and longitude representing the current position of the vehicle from the received signal. .

  The CAN_I / F 16 is an interface for connecting to a communication network of a CAN (Controller Area Network) standard. The CPU 11 can communicate with various devices connected to a communication network on the vehicle via the CAN_I / F 16. Actually, various data such as speed, engine speed, and fuel amount are communicated.

  The communication unit 24 includes a predetermined wireless communication interface, and can perform data communication with the outside of the vehicle using a wireless communication line.

  The power supply unit 25 generates a stable voltage (for example, +5 [V]) necessary for the operation of the CPU 11 and the like based on electric power supplied from a battery of the vehicle, and operates the digital tachograph DT1 when the ignition switch is turned on. Power is supplied to each circuit.

  In FIG. 3, reference numeral 201 denotes a main switch. Button switches B1 to B4 for selecting operations of various functions are provided below the display 205.

  Various messages such as “weather information: the wind and rain will increase” are displayed in the display 205.

(About information transmission processing)
Next, with reference to the flowchart of FIG. 4 and the explanatory diagrams of FIGS. 5 to 7, a processing procedure and an information transmission state of an information transmission process performed by the vehicle information management system S1 according to the present embodiment will be described.

  When this process is started, the weather information is acquired from the weather information distribution system 200 in step S101.

  The acquisition of the weather information from the weather information distribution system 200 may be a push method in which the weather information distribution system 200 simultaneously distributes the weather information at predetermined intervals, or the weather information acquisition unit 52 may transmit the weather information at a predetermined timing. A method of requesting the system 200 to distribute weather information may be used.

  Next, in step S102, it is determined whether the weather is good based on the weather information.

  Here, the method of determination is not particularly limited. For example, as described above, a multi-level evaluation in which normal weather data (information on fine weather, rain, heavy rain, snow, etc.) is made to correspond to the quality of the weather. A value can be assigned, and the quality of the weather can be determined based on the evaluation value.

  If the determination result is “Yes”, the process proceeds to step S103, and the data transmission interval is set to the distance and time in good weather. That is, when the weather condition is good, it is determined that there is little hindrance to driving, so the preset distance and time are extended so that the transmission interval of the information D10 on the traveling condition of the vehicle is adjusted to be longer. I do.

  Accordingly, as shown in FIG. 5, when the vehicle V1 travels in a fine weather condition, for example, when the vehicle V1 travels a distance K10 (for example, 3 km) that is longer than a preset distance K1 (for example, 2 km). Alternatively, the information D10 can be transmitted when a time T10 (for example, 2 minutes) that is longer than a preset time T1 (for example, 1 minute) has elapsed. Therefore, the transmission interval of the information D10 can be lengthened, and the data amount of the information on the traveling state of the vehicle V1 can be reduced.

  On the other hand, when the result of the determination is “No”, the process proceeds to step S104, and the data transmission interval is set to the distance and time during bad weather. That is, when the weather condition is poor, it is determined that there is a problem with driving, so that the distance and time set in advance are reduced so that the transmission interval of the information D10 relating to the running condition of the vehicle is adjusted to be shorter. I do.

  As a result, as shown in FIG. 6, when the vehicle V1 travels in bad weather, the vehicle travels, for example, a distance K20 (for example, 0.5 km) shorter than a preset distance K1 (for example, 1 km). At this time, or when a time T20 (for example, 30 seconds) shorter than the preset time T1 (for example, 1 minute) has elapsed, the information D10 can be transmitted, and the data can be obtained more finely. . Therefore, the manager can grasp the operation status of the vehicle V1 in the bad weather more finely.

  Next, in step S105, distance count initialization and time count initialization are performed, and the process proceeds to step S106.

  In step S106, it is determined whether the vehicle V1 is traveling.

  If the result of the determination is "Yes", the flow shifts to step S107 to start the running distance counting process, and shifts to step S108.

  In step S108, it is determined whether or not the vehicle has been running in the last 10 minutes. If “No”, the process returns to step S105. If “Yes”, the process proceeds to step S109.

  In step S109, it is determined whether or not the travel distance account has reached a certain distance. If “No”, the process returns to step S107, and if “Yes”, the process proceeds to step S110 to transfer data (information D10). Then, the process proceeds to step S111.

  In step S111, it is determined whether or not the required time (for example, one hour) of the weather information has elapsed. If “Yes”, the process returns to step S101 to continue the same processing. Returns to step S105.

  On the other hand, if the result of the determination in step S106 is “No”, the flow shifts to step S112, starts the stop time counting process, and shifts to step S113.

  In step S113, it is determined whether or not the vehicle V1 is stopped. If “No”, the process proceeds to step S105, and if “Yes”, the process proceeds to step S114.

  In step S114, it is determined whether or not the stop time count has reached a predetermined time (for example, T30 set to 30 minutes). If “No”, the process returns to step S112; if “Yes”, “Yes”. Move to step S110.

  Thus, as shown in FIG. 7, for example, the transmission of the information D10 when the vehicle is stopped can be performed every time T30 (30 minutes). Therefore, even when the vehicle is stopped, the data amount of the information D10 can be reduced as compared with the case where transmission is performed at relatively short intervals (for example, one minute).

  When the information D10 is transmitted every time the vehicle V1 travels a certain distance, as shown in FIG. 8, the interval between the data plots (d1 to d10) becomes constant during low-speed running and high-speed running. Therefore, the display is easy to see, and the convenience of the work of analyzing the running state is improved.

  As described above, the vehicle information management system of the present invention has been described based on the illustrated embodiment. However, the present invention is not limited to this, and the configuration of each unit is replaced with an arbitrary configuration having a similar function. be able to.

S1: vehicle information management system 11: transmission setting means (CPU)
17 Information recording means (recording unit)
24 transmission means (communication unit)
Numeral 50: distance determining means 51: elapse determining means 52: weather information acquiring means 100: server 101: receiving means 102: information storing means 200: weather information distribution system DT1: digital tachograph (vehicle-mounted device)
D10: Information on the running state of the vehicle D20: Weather information V1: Vehicle

Claims (5)

Information recording means mounted on the vehicle to record information about the running state of the vehicle,
Transmitting means for transmitting the information recorded in the information recording means,
Transmission control means for controlling transmission processing of the transmission means,
Receiving means for receiving the information transmitted from the transmitting means,
And an information storage unit for storing the information received by the receiving unit.
The transmission control unit includes a distance determination unit that determines whether the traveling distance obtained based on the information has reached a preset distance,
The vehicle information is characterized in that the transmission control means controls the vehicle to transmit information on the running state of the vehicle at that time each time the distance determination means determines that the preset distance has been reached. Management system. The transmission control means further includes a time elapse determination means for determining whether a preset time has elapsed,
The transmission control means, when the vehicle is stopped, controls to transmit information on the running state of the vehicle at that time when the elapsed time determination means determines that the preset time has elapsed. The vehicle information management system according to claim 1, wherein: Further comprising a weather information acquisition means for acquiring weather information,
The vehicle information management system according to claim 1, wherein the distance determination unit changes the preset distance so as to extend or shorten the distance based on the weather information.   4. The vehicle information management system according to claim 3, wherein the time determination unit changes the preset time so as to extend or shorten the time based on the weather information. 5.   The information recording unit, the transmission unit, and the transmission control unit are mounted on the vehicle and record a time, and operation data including a vehicle speed and a traveling distance at each time as information on a traveling state of the vehicle. The vehicle information management system according to any one of claims 1 to 4, wherein the vehicle information management system comprises:

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