JP2016045790A - Information recording device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information recording device for a vehicle for recording predetermined operation information on the basis of the fact that a predetermined state amount exceeds a threshold, and for suppressing operation information which is relatively low in availability from being recorded.SOLUTION: A determination information acquisition part acquires a vehicle speed as a state amount for determination, and when a threshold determination part determines that the vehicle speed exceeds any of a plurality of vehicle speed thresholds, a storage processing part temporarily stores recording object information at that point of time in a temporary storage part. Afterwards, when the vehicle speed exceeds a threshold which is higher than the threshold that the vehicle speed has already exceeded, the storage processing part updates the recording object information stored in the temporary storage part, and when the vehicle speed becomes below a threshold which is lower than the threshold that the vehicle speed has exceeded last, transmits the recording object information stored in the temporary storage part to an operation management server 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information recording apparatus for a vehicle that records operation information representing a driving state of a vehicle and a driver's situation.

  In Patent Document 1, a terminal device that acquires information (referred to as operation information) indicating various state quantities (for example, vehicle speed and acceleration) related to traveling of the vehicle, and a wireless communication with the terminal device that is provided outside the vehicle. An operation monitoring system including the operation monitoring device is disclosed.

  In the terminal device described in Patent Document 1, when one or a plurality of detection values of a plurality of sensors that detect various state quantities related to vehicle travel exceed a threshold set in advance for each state quantity. The data indicating the detection result is transmitted to the operation monitoring device. The operation monitoring device accumulates data received from the terminal device in a database provided in the operation monitoring device.

  That is, the terminal device described in Patent Document 1 plays a role as a device for recording operation information (hereinafter referred to as a vehicle information recording device).

2011-Gazette

  In the vehicle information recording device disclosed in Patent Document 1, one threshold is set for each of various state quantities included in the operation information, and a certain state quantity exceeds the threshold corresponding to the state quantity. If it is, information about the state quantity is recorded.

  By the way, as another configuration of the vehicle information recording device, a configuration in which a plurality of thresholds are set for one state quantity and predetermined operation information at the moment when each threshold is exceeded is recorded. (Assumed configuration) is also assumed. For example, when a plurality of threshold values such as 30, 60, 90 [unit: km / h] are set with respect to the vehicle speed, the vehicle information recording device having the assumed configuration has a vehicle speed of each vehicle. Every time the threshold is exceeded, predetermined operation information is recorded.

  It should be noted that the operation information (recording target information) that is recorded in this assumed configuration is not limited to information about the state quantity that has been detected to exceed the threshold, but includes various other state quantities. Also good. Further, the storage destination of the recording target information may be a memory provided in the vehicle information recording apparatus, or a server memory provided outside the vehicle.

  In such an assumed configuration, for example, when the driver performs a sudden acceleration operation, the vehicle speed exceeds a plurality of threshold values within a relatively short time. As a result, the vehicle information recording apparatus records the information to be recorded at all times exceeding each threshold.

  Here, if the storage capacity of the memory for storing the information to be recorded is unlimited, all the information may be recorded. Usually, however, the storage capacity of the memory is limited, so that it is relatively useful. Preferably, low information is not recorded. Further, when the data stored in the memory increases, there is a risk that disadvantages such as difficult to find necessary information may occur.

  Therefore, it is preferable that the vehicle information recording apparatus has a configuration in which information with relatively low usefulness is not recorded. Of the data at a plurality of points recorded along with the driver's rapid acceleration as described above, the information having relatively high usefulness is the threshold at which the vehicle speed exceeds the highest threshold. Information. Further, the information having relatively low usefulness is information at the time when the vehicle speed exceeds a threshold other than the highest threshold among the thresholds exceeded.

  The present invention has been made based on this situation, and an object thereof is an information recording apparatus for a vehicle that records predetermined operation information based on a predetermined state quantity exceeding a threshold value. Thus, an object of the present invention is to provide a vehicle information recording apparatus that suppresses the recording of operation information that is relatively less useful.

  In order to achieve the object, the present invention provides information that is preliminarily set as a record target among operation information including at least one of vehicle information indicating the traveling state of the host vehicle and driver information indicating the state of the driver. A recording target information acquisition unit (F2) that sequentially acquires the recording target information and a state quantity included in the operation information, and a determination state quantity used to determine whether or not the recording target information should be recorded A determination information acquisition unit (F1) that acquires a value, and a threshold that stores a plurality of thresholds that are set in advance for the state quantity and are used to determine whether or not to record recording target information The storage unit (M1), each of the plurality of threshold values stored in the threshold storage unit, and the value of the determination state quantity acquired by the determination information acquisition unit are compared, and the determination state quantity Value exceeds one of multiple thresholds The threshold determination unit (F3) that determines whether or not the recording target information is lower, and the recording target information acquired by the recording target information acquisition unit based on the determination result of the threshold determination unit in the temporary storage unit (M2) A storage processing unit (F4) for storing, and the storage processing unit is determined by the threshold determination unit that the value of the determination state quantity exceeds the threshold in a state where the recording target information is not stored in the temporary storage unit. If the recording target information acquired by the recording target information acquisition unit at that time is stored in the temporary storage unit, the threshold value that exceeded the determination state quantity value among the plurality of threshold values is set to the latest excess threshold value. In the state where the recording target information is stored in the temporary storage unit and the threshold determination unit determines that the value of the determination state quantity exceeds the threshold value higher than the latest excess threshold value, the temporary storage unit Stored in The current recording target information is updated to the recording target information at that time, the threshold value for which the state quantity for determination is newly exceeded is set as the latest excess threshold value, and the recording target information is stored in the temporary storage unit. In the state where the threshold value determination unit determines that the value of the determination state quantity is lower than the threshold value lower than the latest excess threshold value, the recording target information stored in the temporary storage unit is recorded at a plurality of points in time. It moves to the operation information storage part (14, 22) which can memorize | store information, It is characterized by the above-mentioned.

  In the above configuration, when the value of the determination state quantity exceeds the threshold, the recording target information at that time is temporarily stored in the temporary storage unit. After that, when the determination state quantity exceeds a threshold that is higher than the already exceeded threshold, the recording target information currently acquired by the recording target information acquisition unit is stored in the temporary storage unit. Update to Moreover, the case where the recording target information stored in the temporary storage unit is moved to the operation information storage unit is a case where the state quantity for determination falls below a threshold value lower than the threshold value that was last exceeded.

  According to such a configuration, for example, even when the determination state quantity exceeds a plurality of threshold values in a relatively short time, the recording target information finally stored in the temporary storage unit is This is the recording target information (referred to as peak time information) at the time when the highest threshold value is exceeded among the plurality of threshold values that have exceeded the determination state quantity. And when the state quantity for determination falls below the threshold value lower than the threshold value, the peak time point information is stored in the operation information storage unit.

  That is, according to the above configuration, not all recording target information at the time when each threshold is exceeded is stored in the operation information storage unit. Specifically, the recording target information at the time when a threshold value other than the highest threshold value among a plurality of threshold values that have exceeded the determination state quantity is not stored. Moreover, the recording target information at the time when a threshold other than the highest threshold among the plurality of thresholds at which the determination state quantity has exceeded is less useful than the peak time information.

  Therefore, according to the above configuration, it is possible to suppress the recording of relatively low useful information.

  In addition, the code | symbol in the parenthesis described in the claim shows the correspondence with the specific means as described in embodiment mentioned later as one aspect, Comprising: The technical scope of this invention is limited is not.

1 is a block diagram illustrating an example of a schematic configuration of a vehicle information recording system 100 according to the present embodiment. It is a functional block diagram which shows an example of the schematic structure of the control part 11 with which the vehicle side terminal 1 is provided. It is a flowchart which shows an example of the operation information recording process which the control part 11 implements. It is a figure for demonstrating the action | operation of this embodiment with respect to the time change of a vehicle speed. It is a figure for demonstrating the action | operation of this embodiment with respect to the time change of a vehicle speed. It is a figure for demonstrating the action | operation of this embodiment with respect to the time change of a vehicle speed. 10 is a block diagram showing a schematic configuration of a temporary storage unit M2 in Modification 2. FIG. It is a figure for demonstrating the action | operation of this embodiment with respect to the time change of a vehicle speed. It is a block diagram which shows the schematic structure of the temporary memory part M2 in the modification 3. It is a block diagram which shows an example of the schematic structure of 1 A of vehicle side terminals in the modification 4.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating an example of a schematic configuration of a vehicle information recording system 100 according to the present embodiment. As shown in FIG. 1, the vehicle information recording system 100 includes a vehicle-side terminal 1 used in a vehicle and an operation management server 2 provided outside the vehicle. The vehicle-side terminal 1 and the operation management server 2 perform mutual communication via a known communication network 3 such as a telephone network or the Internet.

  The operation management server 2 is a server managed by an operation management company that manages the operation status of the vehicle in which the vehicle-side terminal 1 is used. The operation status here refers to the running state of the vehicle, the state of the driver (physical condition, etc.), and the like. The operation management server 2 manages the operation state of the vehicle by collecting operation information including at least one of vehicle information indicating the vehicle driving state and driver information indicating the driver state.

  As shown in FIG. 1, the operation management server 2 includes a server-side communication unit 21 and an operation result database (hereinafter, the database is abbreviated as DB) 22. The server side communication unit 21 includes a transmission / reception antenna and communicates with the vehicle side terminal 1 via the communication network 3. For example, the server-side communication unit 21 receives operation management data (details will be described later) transmitted from the vehicle-side terminal 1.

  The operation record DB 22 stores operation management data received by the server-side communication unit 21. The operation record DB 22 may be realized by using a rewritable nonvolatile storage medium such as an HDD (Hard Disk Drive). The operation result DB 22 corresponds to an example of an operation information storage unit described in the claims.

  As shown in FIG. 1, the vehicle-side terminal 1 includes a vehicle communication interface unit (hereinafter, vehicle communication IF unit) 12, a terminal-side communication unit 13, and a control unit 11. The control unit 11, the vehicle communication IF unit 12, and the terminal side communication unit 13 are connected so as to be able to communicate with each other. In the following, the configuration and operation of the vehicle-side terminal 1 will be described on the assumption that the vehicle-side terminal 1 is mounted on the vehicle as an example. However, the vehicle-side terminal 1 is a terminal carried by the user. May be.

  The vehicle communication IF unit 12 acquires vehicle information representing a running state of the vehicle from an ECU (Electronic Control Unit) mounted on the host vehicle and various sensors. For example, the vehicle communication IF unit 12 may acquire vehicle information by performing mutual communication with an ECU or a sensor via a known in-vehicle network. The in-vehicle network is a network that connects ECUs and sensors mounted on the vehicle. The vehicle information acquired by the vehicle communication IF unit 12 is sequentially provided to the control unit 11.

  The elements included in the vehicle information include, for example, position information, travel speed (hereinafter, vehicle speed), traveling direction, longitudinal acceleration, vehicle width direction acceleration, yaw rate, engine speed, shift position, brake pedal depression amount, Various state quantities representing the traveling state of the host vehicle such as the accelerator pedal depression amount, the steering speed, and the steering angle are applicable. The longitudinal acceleration described above refers to acceleration acting in the longitudinal direction of the vehicle, and the vehicle width direction acceleration refers to acceleration acting in the vehicle width direction.

  In addition to the above, when the own vehicle has a system for detecting the driver's body temperature, pulse, alcohol concentration in exhalation, and arousal level, the vehicle communication IF unit 12 performs various operations related to these drivers. The state quantity may be acquired. In the present embodiment, as an example, the vehicle communication IF unit 12 acquires the driver's body temperature (for example, the temperature of the face surface). The above-described driver information includes state quantities related to these drivers.

  In addition, what is necessary is just to use a well-known technique for the method of detecting, measuring, or estimating various state quantities mentioned above.

  The terminal-side communication unit 13 includes a transmission / reception antenna and performs mutual communication with the operation management server 2 via the communication network 3. That is, the terminal side communication unit 13 demodulates the signal received from the operation management server 2 and outputs the demodulated signal to the control unit 11, and modulates the data input from the control unit 11 and transmits the data to the operation management server 2.

  This terminal side communication part 13 should just be implement | achieved by the communication module used with a well-known 4th generation mobile communication system, for example. Of course, various other devices such as an in-vehicle communication module such as DCM (Data Communication Module) can be adopted as the terminal side communication unit 13. The terminal side communication unit 13 corresponds to the communication unit described in the claims.

  The control unit 11 is configured as a computer, and includes a well-known CPU, ROM, nonvolatile memory such as flash memory, volatile memory such as RAM, I / O, and a bus line (not shown) for connecting these configurations. Etc. A nonvolatile memory such as a ROM or a flash memory stores programs for the control unit 11 to execute various processes.

  In the rewritable and non-volatile storage area provided in the control unit 11, a plurality of threshold values used for determination as to whether or not recording target information to be described later is recorded are stored. Of the storage areas provided in the control unit 11, an area storing those threshold values is referred to as a threshold storage unit M <b> 1. Of the rewritable storage areas included in the control unit 11, an area for temporarily storing the recording target information is referred to as a temporary storage unit M2.

  As shown in FIG. 2, the control unit 11 includes a recording target information acquisition unit F1, a determination information acquisition unit F2, a threshold determination unit F3, a storage processing unit F4, and a transmission processing unit F5. In addition, although these functional blocks shall be implement | achieved by software in this embodiment, a part or all of these functional blocks may be implement | achieved by hardware as another aspect.

  The recording target information acquisition unit F1 acquires predetermined recording target information from the vehicle communication IF unit 12. The recording target information is information about a type of state quantity that is predetermined as a recording target in the operation information. The state quantity included in the recording target information may be a kind of state quantity necessary for the operation management company to manage the operation result of the vehicle.

  As an example, in the present embodiment, the recording target information includes vehicle speed, acceleration, position information, and a traveling direction. Of course, the type of information to be recorded is not limited to this. What is necessary is just to set suitably.

  Moreover, the recording target information does not necessarily include a state quantity (determined state quantity for determination) adopted as information for determination described later in the operation information. For example, when the vehicle speed is adopted as the determination state quantity, the recording target information does not include the vehicle speed, and may be, for example, only acceleration and position information, or only position information. Of course, only acceleration may be used. Conversely, the recording target information may be only the determination state quantity.

  The determination information acquisition unit F2 is a state amount included in the operation information from the vehicle communication IF unit 12, and is a state amount for determining whether or not the above-described recording target information should be recorded (that is, a determination state). Value) is acquired as determination information. The determination state quantity may be set as appropriate, and in the present embodiment, the vehicle speed is taken as an example.

  Of course, as another aspect, the determination state quantity may be a longitudinal acceleration, an accelerator pedal depression amount, a brake pedal depression amount, a steering speed, or the like. However, it is necessary to be a state quantity that can be expressed as a numerical value so that a plurality of threshold values can be set for the state quantity.

  The plurality of threshold values stored in the threshold value storage unit M1 are threshold values set for the determination state quantity. The threshold storage unit M1 of the present embodiment stores three thresholds set for the vehicle speed; a first vehicle speed threshold V1, a second vehicle speed threshold V2, and a third vehicle speed threshold V3. For example, the first vehicle speed threshold V1 is 30 km / h, the second vehicle speed threshold V2 is 60 km / h, and the third vehicle speed threshold V3 is 90 km / h.

  The number of threshold values set for one determination state quantity may be two or more, and may be appropriately designed. In addition, the value of each threshold may be set as appropriate. However, it is assumed that a magnitude relationship is established between a plurality of threshold values.

  In the present embodiment, the recording target information and the determination information are acquired from the vehicle via the vehicle communication IF unit 12, but the present invention is not limited thereto. When the vehicle terminal 1 itself includes a sensor that detects part or all of the state quantities included in the recording target information and the determination information, a value detected by the sensor may be used. In particular, when the vehicle-side terminal 1 itself includes all the sensors that detect the state quantities included in the recording target information and the determination information, it is not necessary to include the vehicle communication IF unit 12.

  The threshold determination unit F3 compares the determination state quantity acquired by the determination information acquisition unit F2 with a plurality of threshold values corresponding to the determination state quantity stored in the threshold storage unit M1, and determines the determination information. It is determined whether or not one of the plurality of thresholds has been exceeded and below. More specifically, the threshold determination unit F3 of the present embodiment includes the vehicle speed value acquired by the determination information acquisition unit F2, the first vehicle speed threshold V1, the second vehicle speed threshold V2, and the third vehicle speed threshold V3. Compare Then, it is determined whether or not the vehicle speed exceeds any one of a plurality of threshold values and whether or not the vehicle speed falls below. The operation of the threshold determination unit F3 will be described in more detail in the description of the flowchart shown in FIG.

  Based on the determination result of the threshold determination unit F3, the storage processing unit F4 assigns time information (so-called time stamp) indicating the storage time of the recording target information to the recording target information acquisition unit F1 recording target information and temporarily stores it. Stored in the part M2.

  In the present embodiment, the case where the storage processing unit F4 stores the recording target information in the temporary storage unit M2 is a case where the threshold determination unit F3 determines that the vehicle speed has exceeded any of a plurality of thresholds. When the recording processing unit F4 stores the recording target information in the temporary storage unit M2, the storage processing unit F4 holds, as the latest excess threshold, a threshold at which the vehicle speed has exceeded among a plurality of thresholds.

  Then, the storage processing unit F4 instructs the transmission processing unit F5 to transmit the recording target information stored in the temporary storage unit M2 to the operation management server 2 when a predetermined condition is satisfied. The operation of the storage processing unit F4 will also be described in more detail in the description of the flowchart shown in FIG.

  The transmission processing unit F5 generates operation management data including the recording target information stored in the temporary storage unit M2 based on an instruction from the storage processing unit F4, and transmits the operation management data to the operation management server 2. The operation management data includes, for example, a time stamp, a generation time of the operation management data, an identifier for specifying the terminal that transmitted the data, and the like in addition to the recording target information.

  Here, with reference to the flowchart shown in FIG. 3, a series of processing (hereinafter, operation information recording processing) for transmitting the recording target information to the operation management server 2 performed by the control unit 11 will be described. The flowchart shown in FIG. 3 may be performed sequentially (for example, every 100 milliseconds) when the ignition power is turned on, for example.

  First, in step S100, the determination information acquisition unit F2 acquires the determination information, and proceeds to step S101. That is, in the present embodiment, the current vehicle speed value is acquired, and the process proceeds to step S101.

  In step S101, it is determined whether or not recording target information is stored in the storage processing unit F4 and the temporary storage unit M2. Here, when the recording target information is stored in the temporary storage unit M2, step S101 is YES, and the process proceeds to step S104. On the other hand, when the recording target information is not stored in the temporary storage unit M2, step S101 is NO and the process proceeds to step S102.

  In step S102, the threshold determination unit F3 determines whether or not the vehicle speed value acquired as the determination information exceeds any of a plurality of thresholds. More specifically, the vehicle speed acquired as the determination information is compared with each of the first vehicle speed threshold value V1, the second vehicle speed threshold value V2, and the third vehicle speed threshold value V3, and whether or not any threshold value is exceeded. judge. Here, if the vehicle speed value exceeds any of the first vehicle speed threshold value V1, the second vehicle speed threshold value V2, and the third vehicle speed threshold value V3, step S102 is YES and the process proceeds to step S103.

  On the other hand, if the vehicle speed value does not exceed any of the first vehicle speed threshold value V1, the second vehicle speed threshold value V2, and the third vehicle speed threshold value V3, step S102 is NO and this flow is ended. In addition, since there is a relationship of V1 <V2 <V3 between the first vehicle speed threshold V1, the second vehicle speed threshold V2, and the third vehicle speed threshold V3, the current vehicle speed does not exceed any threshold. Indicates that the vehicle speed is equal to or lower than the first vehicle speed threshold value V1 (the lowest threshold value).

  In step S103, the storage processing unit F4 adds a time stamp to the recording target information acquired by the recording target information acquisition unit F1 and stores it in the temporary storage unit M2. In addition, a threshold value that exceeds the current vehicle speed among a plurality of threshold values is held as the latest excess threshold value.

  Here, the threshold held as the latest excess threshold is the threshold closest to the vehicle speed among the thresholds exceeded by the current vehicle speed. For example, when the vehicle speed is 70 km / h, the first vehicle speed threshold value V1 (= 30 km / h) and the second vehicle speed threshold value V2 (= 60 km / h) are set to the threshold values exceeding the current vehicle speed. Applicable. In such a situation, what is held as the latest excess threshold is the second vehicle speed threshold V2 that is closer to the current vehicle speed among the first vehicle speed threshold V1 and the second vehicle speed threshold V2. When the processing in step S103 is completed, this flow ends.

  In step S104, the threshold determination unit F3 determines whether or not the vehicle speed exceeds a threshold that is one higher than the latest excess threshold. If the vehicle speed exceeds a threshold value that is one higher than the latest excess threshold value, step S104 becomes YES and the process moves to step S105. On the other hand, when the vehicle speed does not exceed the threshold value one higher than the latest excess threshold value, step S104 is NO and the process proceeds to step S106.

  In step S105, the storage processing unit F4 updates the content of the recording target information stored in the temporary storage unit M2. More specifically, the recording target information stored in the temporary storage unit M2 is discarded, and the time stamp is added to the recording target information acquired by the recording target information acquisition unit F1 when it is determined YES in the previous step S104. And save.

  The latest excess threshold is also set to a threshold newly exceeded by the current vehicle speed among the plurality of thresholds. That is, a threshold value that is one higher than the latest excess threshold value used up to step S104 is set as the latest excess threshold value. When the process in step S105 is completed, this flow ends.

  In step S106, the threshold determination unit F3 determines whether or not the current vehicle speed is below a threshold that is one lower (one step smaller) than the latest excess threshold. If the current vehicle speed is below the threshold value one lower than the latest excess threshold value, step S106 becomes YES and the process moves to step S108. On the other hand, when the current vehicle speed is not less than the threshold value one lower than the latest excess threshold value, step S106 is NO and this flow is finished.

  In step S107, the storage processing unit F4 refers to the time stamp given to the recording target information stored in the temporary storage unit M2, and the elapsed time since the recording target information was stored is a fixed time (holding time). Ta)) or not.

  In step S107, if the elapsed time since the recording target information is stored is equal to or longer than the holding time Ta, step S107 is YES and the process proceeds to step S108. On the other hand, when the elapsed time since the recording target information is stored is less than the holding time Ta, step S107 is NO and this flow is finished.

  In step S107, the time change of the determination state quantity (here, the vehicle speed) is small with respect to a plurality of threshold intervals, and the state in which the recording target information is held in the temporary storage unit M2 continues for a relatively long time. It is a process to avoid doing. The holding time Ta may be appropriately designed. In the present embodiment, the holding time Ta is 1 minute as an example. Of course, the holding time Ta may be other values such as 5 seconds, 10 seconds, 30 seconds, 2 minutes, 5 minutes, or the like.

  In step S108, the storage processing unit F4 requests the transmission processing unit F5 to transmit the recording target information stored in the temporary storage unit M2 to the operation management server 2. Then, based on the request from the storage processing unit F4, the transmission processing unit F5 generates operation management data including the recording target information stored in the temporary storage unit M2, and transmits the operation management data to the operation management server 2.

  When the operation management server 2 receives the operation management data from the vehicle side terminal 1, the operation management server 2 stores the operation management data in the operation result DB 22 and receives the operation management data normally with respect to the vehicle side terminal 1. A response signal indicating that this is returned.

  When the transmission processing unit F5 completes transmission of operation management data and receives a response signal indicating completion of reception from the operation management server 2, the storage processing unit F4 deletes the transmitted recording target information from the temporary storage unit M2. Then, this flow is finished. That is, by performing this step S108, the recording target information stored in the temporary storage unit M2 is moved to the operation result DB 22 provided in the operation management server 2.

  Next, the operation of the operation information recording process described above will be described with reference to FIGS. 4, 5, and 6. 4, 5, and 6 are graphs showing changes in vehicle speed over time, with the horizontal axis representing time [unit: seconds] and the vertical axis representing speed [unit: km / h]. In any initial state of the graph, it is assumed that the recording target information is not stored in the temporary storage unit M2.

  FIG. 4 shows the time change of the vehicle speed when the vehicle speed monotonously increases after the vehicle speed monotonously increases. That is, from time T11 to time T14, an accelerating process (acceleration process) is represented, and after time T14, a deceleration process (deceleration process) is represented. It is assumed that the time from time T13 to T16 is shorter than the holding time Ta.

  More specifically, time T11 is a time when the vehicle speed exceeds the first vehicle speed threshold V1, time T12 is a time when the vehicle speed exceeds the second vehicle speed threshold V2, and time T13 exceeds the third vehicle speed threshold V3. Each time point is shown. Time T15 represents a time when the vehicle speed falls below the third vehicle speed threshold V3, and time T16 represents a time when the vehicle speed falls below the second vehicle speed threshold V2.

  As shown in FIG. 4, the operation of the control unit 11 when the vehicle speed changes with time is as follows. First, at time T11, since the recording target information is not stored in the temporary storage unit M2 in the initial state (NO in step S101), the storage processing unit F4 stores the recording target information at this time in the temporary storage unit M2. (Step S102). Further, the storage processing unit F4 holds the first vehicle speed threshold value V1 as the latest excess threshold value.

  At time T12, the threshold determination unit F3 determines that the vehicle speed has exceeded a second vehicle speed threshold V2 that is higher than the first vehicle speed threshold V1, which is the latest excess threshold (YES in step S104). In response to this, the storage processing unit F4 replaces the recording target information stored in the temporary storage unit M2 with the recording target information at time T12 and updates the latest excess threshold to the second vehicle speed threshold V2 (step S105). ).

  At time T13, the threshold determination unit F3 determines that the vehicle speed exceeds the third vehicle speed threshold V3 that is higher than the latest excess threshold (= second vehicle speed threshold V2) (YES in step S104). In response to this, the storage processing unit F4 replaces the recording target information stored in the temporary storage unit M2 with the recording target information at the time T13, and updates the latest excess threshold to the third vehicle speed threshold V3 (step S105). ).

  At time T15, the threshold determination unit F3 determines that the vehicle speed has fallen below the third vehicle speed threshold V3. Here, the threshold value at which the vehicle speed has fallen is the latest excess threshold value, and is not a threshold value that is one smaller than the latest excess threshold value. For this reason, in the flowchart shown in FIG. 3, step S106 becomes NO and moves to step S107. Further, since the elapsed time from time T13 is less than the holding time Ta, step S107 is also NO. That is, at time T15, nothing is performed on the recording target information stored in the temporary storage unit M2.

  Thereafter, as the vehicle speed further decreases, the vehicle speed falls below the second vehicle speed threshold value V2 at time T16. That is, at time T16, the threshold determination unit F3 determines that the vehicle speed has fallen below the second vehicle speed threshold V2 that is one lower than the latest excess threshold (third vehicle speed threshold V3) (YES in step S106). In response to this, the storage processing unit F4 requests the transmission processing unit F5 to transmit the recording target information to the operation management server 2, and the transmission processing unit F5 transmits the operation management data including the recording target information. It transmits to the operation management server 2 (step S108).

  The recording target information transmitted here is the recording target information stored at time T13 when the highest threshold value (here, the third vehicle speed threshold value V3) is exceeded among the threshold values V1, V2, and V3 at which the vehicle speed has exceeded. Even at time T11 and time T12, the vehicle speed exceeds the threshold value, but the recording target information at those times is discarded when the vehicle speed exceeds the higher threshold value, and thus is not transmitted to the operation management server 2. . That is, the recording target information is not transmitted when a threshold value other than the highest threshold value (here, the third vehicle speed threshold value V3) is exceeded among the threshold values that the vehicle speed has exceeded within the holding time Ta.

  In general, when a plurality of threshold values are continuously exceeded in a relatively short time, such as during rapid acceleration, for example, the highest threshold value (third vehicle speed threshold value V3) among the threshold values exceeded by those vehicle speeds has been exceeded. The recording target information at the time is more useful than the recording target information at the time when the other threshold (such as the first vehicle speed threshold V1) is exceeded.

  If the vehicle side terminal is configured to transmit the recording target information to the operation management server 2 every time the vehicle speed exceeds the threshold value (comparative configuration), the recording target at each time point is also at times T11 and T12. Information will be sent. In other words, in the comparison configuration, the recording target information at all times when the vehicle speed exceeds the threshold value is transmitted, so that the recording target information at a relatively low useful time is transmitted.

  On the other hand, according to the configuration of the present embodiment, the recording target information at the time when the threshold other than the highest threshold among the thresholds exceeding the vehicle speed within the holding time Ta is not transmitted, which is relatively useful. It is possible to reduce the risk of transmission of low-quality information. That is, it is possible to reduce the possibility of recording information that is relatively less useful.

  Moreover, since the frequency which transmits operation management data can also be reduced compared with a comparison structure, the communication amount of the vehicle side terminal 1 and the operation management server 2 can also be suppressed.

  Next, FIG. 5 will be described. FIG. 5 shows the time change of the vehicle speed when the vehicle speed vibrates so as to cross the second vehicle speed threshold value V2 within the holding time Ta.

  More specifically, the acceleration process is represented from time T21 to time T22. Time T21 is a time when the vehicle speed exceeds the first vehicle speed threshold V1, and time T22 is a time when the vehicle speed exceeds the second vehicle speed threshold V2. Respectively.

  After the vehicle speed exceeds the second vehicle speed threshold value V2 at time T22, acceleration and deceleration are repeated so that the vehicle speed crosses the second vehicle speed threshold value V2. Times T24 and T26 indicate times when the vehicle speed exceeds the second vehicle speed threshold V2, and times T23, T25 and T27 indicate times when the vehicle speed falls below the second vehicle speed threshold V2. Time T28 represents a point in time when the vehicle speed falls below the first vehicle speed threshold V1 while the deceleration process is maintained after the vehicle speed falls below the second vehicle speed threshold V2 at time T27.

  The operation of the control unit 11 when the vehicle speed changes with time is as follows. First, at time T21, the threshold value determination unit F3 determines that the vehicle speed has exceeded the first vehicle speed threshold value V1 (YES in step S102), and accordingly, the storage processing unit F4 performs the recording target information acquisition unit F1 at time T21. The acquired recording target information is stored in the temporary storage unit M2 (step S103). The latest excess threshold is the first vehicle speed threshold V1.

  At time T22, the threshold determination unit F3 determines that the vehicle speed has exceeded the second vehicle speed threshold V2 (YES in step S104), and the storage processing unit F4 stores the recording target information stored in the temporary storage unit M2 at time T22. Replace with the recording target information at the time (step S105). Further, the latest excess threshold is the second vehicle speed threshold V2.

  At time T23, the threshold determination unit F3 determines that the vehicle speed has fallen below the second vehicle speed threshold V2. Here, the threshold value at which the vehicle speed has fallen is the latest excess threshold value, and is not a threshold value that is one smaller than the latest excess threshold value (that is, the first vehicle speed threshold value V1), so in the flowchart shown in FIG. Move on. Further, since the elapsed time from time T22 is less than the holding time Ta, step S107 is also NO. That is, at time T23, nothing is performed on the recording target information stored in the temporary storage unit M2.

  At time T24, the threshold determination unit F3 determines that the vehicle speed has exceeded the second vehicle speed threshold V2. However, the threshold value at which the vehicle speed has exceeded here is the latest excess threshold value, and is not one higher than the latest excess threshold value (that is, the third vehicle speed threshold value V3), so step S104 becomes NO and the process moves to step S106. Steps S106 and S107 are also NO, and nothing is performed on the recording target information stored in the temporary storage unit M2 even at time T24.

  The operation at time T25 and time T27 is the same as the operation at time T23. The operation at time T26 is the same as the operation at time 24.

  At time T28, the threshold determination unit F3 determines that the vehicle speed has fallen below the first vehicle speed threshold V1. Here, since the threshold value at which the vehicle speed has fallen is one smaller than the latest excess threshold value, step S106 becomes YES, and the process proceeds to step S108. Then, at time T28, the storage processing unit F4 requests the transmission processing unit F5 to transmit the recording target information to the operation management server 2, and the transmission processing unit F5 includes the operation management data including the recording target information. Is transmitted to the operation management server 2.

  As described above, when the vehicle speed vibrates in the vicinity of the threshold value, the recording target information at all times T21, T22, T24, and T26 is sequentially transmitted to the operation management server 2 in the comparative configuration. However, the recording target information at the time T21 is less useful than the recording target information at the times T22, T24, and T26, as described above.

  Further, since the recording target information at each of T22, T24, and T26 is data sampled within a relatively short time less than the holding time Ta, there is no significant difference in the contents of each recording target information. What is necessary is just to transmit recording object information. That is, if the recording target information is transmitted at each time point every time the vehicle speed exceeds the threshold as in the comparison configuration, unnecessary data is accumulated in the operation result DB 22.

  On the other hand, in the configuration of the present embodiment, the recording target information at time T22 is transmitted, and the recording target information at other time points (T23 to T27) is not transmitted. That is, according to the configuration of the present embodiment, it is possible to reduce the possibility of storing the recording target information that is relatively less useful in the operation performance DB 22.

  FIG. 6 shows a case where the time fluctuation of the vehicle speed after the vehicle speed exceeds the second vehicle speed threshold value V2 is stabilized. More specifically, after the vehicle speed exceeds the second vehicle speed threshold value V2 at time T31, a value between the second vehicle speed threshold value V2 and the third vehicle speed threshold value V3 is maintained, and at time T33, the second vehicle speed threshold value V2 is maintained. It represents the situation that exceeded. However, the time during which the value between the second vehicle speed threshold V2 and the third vehicle speed threshold V3 is maintained after the vehicle speed exceeds the second vehicle speed threshold V2 at time T31 is equal to or longer than the holding time Ta.

  If the present embodiment does not execute the process of step S107 in such a time change of the vehicle speed, the recording target information stored in the temporary storage unit M2 at time T31 is the recording target information at time T33 after a lapse of time T31. Will be overwritten. That is, the recording target information at time T31 is not transmitted.

  However, in general, since the state of the vehicle changes from moment to moment, the content indicated by the recording target information at a certain time point and the content indicated by the recording target information at another time point differ as the interval between those two times increases. It is highly possible that That is, there is a possibility that the content indicated by the recording target information is changed between the content of the recording target information acquired at time T31 and the content of the recording target information acquired at time T33 after the holding time Ta has elapsed from time T31. high. Therefore, in managing the operation performance of the vehicle in which the vehicle-side terminal 1 is used, it is desired to record not only the recording target information at time T33 but also the recording target information at time T31.

  Therefore, in the present embodiment, when step S107 using the holding time Ta is introduced and the state where the same recording target information is stored in the temporary storage unit M2 exceeds the holding time Ta (time in FIG. 6). At T32), the information is transmitted to the operation management server 2. The value of the holding time Ta may be set to an appropriate value for managing the operation results.

  With such an aspect, by maintaining the vehicle speed at a constant value, it is possible to suppress the possibility that the recording target information stored in the temporary storage unit M2 will not be transmitted at a certain time (for example, time T31). .

  In the embodiment, since the vehicle speed is used as the determination state quantity, the change in the state quantity in the direction in which the determination state quantity exceeds the threshold is expressed by the term acceleration process. Of course, state quantities other than those relating to speed may be adopted as the determination state quantities. The embodiment represents an aspect in which the recording target information is recorded at the time when the determination state quantity exceeds the threshold with respect to the change of the determination state quantity with time.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, The following modification is also contained in the technical scope of this invention, Furthermore, the summary other than the following is also included. Various modifications can be made without departing from the scope.

<Modification 1>
When the step S107 is YES and the transmission is performed, if the latest excess threshold is the first vehicle speed threshold V1, the operation management data including the recording target information may not be transmitted. This is due to the following reason.

  First, according to the configuration of the above-described embodiment, since there is no threshold lower than the first vehicle speed threshold V1, the recording target information when the vehicle speed exceeds the first vehicle speed threshold V1 is YES in step S106. It is not transmitted to the operation management server 2 at step S108. In other words, any recording target information that is transmitted when step S106 is YES becomes recording target information when the vehicle speed exceeds the second vehicle speed threshold V2 or the third vehicle speed threshold V3.

  On the other hand, when step S107 is YES, the recording target information stored at the time when the first vehicle speed threshold value V1 is exceeded is also transmitted to the operation management server 2. That is, the recording target information that is not transmitted when step S106 is determined to be YES is transmitted via step S107.

  Therefore, in the first modification, when the latest excess threshold is the first vehicle speed threshold V1, a condition that does not transmit operation management data including the record target information is added to step S108. According to the aspect of the first modification, even when step S108 is reached via step S107, the recording target information at the time when the vehicle speed exceeds the first vehicle speed threshold is prevented from being transmitted to the operation management server 2. Can do.

  In the first modification, the recording target information at the time when the vehicle speed exceeds the first vehicle speed threshold value is not transmitted to the operation management server 2, thereby aligning the situation in which the information to be transmitted to the operation management server 2 is acquired. However, the present invention is not limited to this.

  In step S106, when the latest excess threshold value is the lowest threshold value among the plurality of threshold values (that is, the first vehicle speed threshold value V1), the vehicle speed comparison target is not a threshold value one lower than the latest excess threshold value. It may be the latest excess threshold. The situation where the information transmitted to the operation management server 2 was acquired also by such an aspect can be prepared.

<Modification 2>
In the above, the aspect in which the recording target information when the vehicle speed exceeds any of a plurality of thresholds is transmitted to the operation management server 2, that is, the aspect in which the recording target information in the acceleration process is recorded. Not limited to. The recording target information in the deceleration process may be recorded by transmitting the recording target information when the vehicle speed falls below any of the plurality of thresholds to the operation management server 2. A configuration of the second modification will be described with reference to FIGS. 7 and 8.

  The temporary storage unit M2 in the modified example 2 is an acceleration temporary storage unit M2A for storing the recording target information acquired in the acceleration process, and a deceleration for storing the recording target information acquired in the deceleration process. Temporary storage unit M2B. The acceleration temporary storage unit M2A corresponds to the excess temporary storage unit described in the claims, and the deceleration temporary storage unit M2B corresponds to the descending temporary storage unit described in the claims. The temporary storage unit for acceleration M2A and the temporary storage unit for deceleration M2B may be different storage areas.

  The operation of the control unit 11 in the acceleration process is the same as that in the above-described embodiment except that the storage destination of the recording target information is designated as the acceleration temporary storage unit M2A in the temporary storage unit M2. That is, in step S101, it is determined whether or not recording target information is stored in the acceleration temporary storage unit M2A. The storage destination of the recording target information in step S103 or step S105 is the acceleration temporary storage unit M2A, and the recording target information transmitted in step S108 is also the recording target information stored in the acceleration temporary storage unit M2A. is there.

  Next, the operation of the control unit 11 in the deceleration process will be described. The operation of the control unit 11 in the deceleration process is the reverse of the operation of the control unit 11 in the acceleration process, and the same concept can be applied. However, in the deceleration process, the latest descending threshold is introduced as a concept corresponding to the latest excess threshold in the acceleration process. When the threshold determination unit F3 determines that the vehicle speed has exceeded a threshold that is one higher than the latest lowering threshold, the control unit 11 uses the operation management server 2 to store the recording target information stored in the deceleration temporary storage unit M2B. Send to. This will be described more specifically with reference to FIG.

  FIG. 8 shows the time change of the vehicle speed when the vehicle speed monotonously decreases after the vehicle speed monotonously decreases within the holding time Ta. More specifically, the vehicle is decelerating from time T41 to time T44, and is accelerating after time T44.

  Time T41 represents a time when the vehicle speed fell below the third vehicle speed threshold V3, time T42 represents a time when the vehicle speed fell below the second vehicle speed threshold V2, and time T43 represents a time when the vehicle speed fell below the first vehicle speed threshold V1. ing. Time T45 is a time when the vehicle speed exceeds the first vehicle speed threshold V1, time T46 is a time when the vehicle speed exceeds the second vehicle speed threshold V2, and time T47 is a time when the vehicle speed exceeds the third vehicle speed threshold V3. Represents each.

  The operation of the control unit 11 when the vehicle speed changes with time is as follows. In the initial state (before time T41), it is assumed that the information to be recorded is not stored in the deceleration temporary storage unit M2B.

  First, at time T41, the threshold determination unit F3 determines that the vehicle speed has fallen below the third vehicle speed threshold V3. Accordingly, the storage processing unit F4 stores the recording target information at time T41 in the deceleration temporary storage unit M2B. In addition, the storage processing unit F4 holds the third vehicle speed threshold value V3 as the latest descending threshold value.

  At time T42, the threshold determination unit F3 determines that the vehicle speed has fallen below the second vehicle speed threshold V2. Here, the threshold value at which the vehicle speed has fallen is a threshold value that is one smaller than the latest excess threshold value (= third vehicle speed threshold value V3). Therefore, the storage processing unit F4 replaces the recording target information stored in the temporary deceleration storage unit M2B with the recording target information at time T42, and updates the latest descending threshold value to the second vehicle speed threshold value V2.

  At time T43, the threshold determination unit F3 determines that the vehicle speed has fallen below the first vehicle speed threshold V1. Here, the threshold value at which the vehicle speed has fallen is a threshold value that is one smaller than the latest excess threshold value (= second vehicle speed threshold value V2). Therefore, the storage processing unit F4 replaces the recording target information stored in the temporary deceleration storage unit M2B with the recording target information at time T43, and updates the latest descending threshold to the first vehicle speed threshold V1.

  At time T45, the threshold determination unit F3 determines that the vehicle speed has exceeded the first vehicle speed threshold V1. Here, the threshold at which the vehicle speed has exceeded is the latest descending threshold value, and is not one higher than the latest descending threshold value, so that the recording target information stored in the temporary storage unit for deceleration M2B is not transmitted.

  At time T46, the threshold determination unit F3 determines that the vehicle speed has exceeded the second vehicle speed threshold V2. Here, the threshold that the vehicle speed has exceeded is a threshold that is one higher than the latest descending threshold (first vehicle speed threshold V1). For this reason, the storage processing unit F4 requests the transmission processing unit F5 to transmit the recording target information stored in the temporary storage unit for deceleration M2B to the operation management server 2, and the transmission processing unit F5 The operation management data including the information to be recorded is transmitted to the operation management server 2.

  According to such a configuration, it is possible to transmit, to the operation management server 2, recording target information that is relatively useful among the recording target information at a plurality of points in the deceleration process. Further, by using the recording target information transmitted in the acceleration direction and the recording target information transmitted in the deceleration direction in a complementary manner, it is possible to verify a more detailed behavior of the vehicle than in the embodiment.

  In the second modification, since the vehicle speed is used as the determination state quantity, the change in the state quantity in the direction in which the determination state quantity falls below the threshold is expressed by the term deceleration process. Of course, state quantities other than those relating to speed may be adopted as the determination state quantities. This modified example 2 represents an aspect in which the recording target information is recorded at the time when the determination state quantity falls below the threshold with respect to the change over time of the determination state quantity. Even when a state quantity other than the vehicle speed and acceleration is employed as the determination state quantity, the concept of the second modification can be applied.

<Modification 3>
A plurality of types of state quantities may be set as determination state quantities. For example, each of the vehicle speed and the acceleration may be adopted as the determination state quantity. In this case, the threshold value storage unit M1 stores a plurality of threshold values for the vehicle speed (referred to as a vehicle speed threshold value) and a plurality of threshold values for acceleration (referred to as an acceleration threshold value). For example, a plurality of acceleration threshold may be in ascending order and ^{3m / s 2, 5m / s} 2, 7m / s 2. The determination information acquisition unit F2 sequentially acquires detected values of the vehicle speed and acceleration.

  Thus, when it is set as the aspect which uses multiple types of determination state quantity, the temporary memory part M2 shall be provided with the memory area which preserve | saves the recording object information for every determination state quantity. For example, when each of the vehicle speed and the acceleration is employed as the determination state quantity, the temporary storage unit M2 includes a vehicle speed temporary storage unit M21 and an acceleration temporary storage unit M22 as shown in FIG.

  The vehicle speed temporary storage unit M21 is a storage area for storing recording target information acquired based on the fact that the vehicle speed exceeds / below the vehicle speed threshold. The acceleration temporary storage unit M22 is a storage area for storing recording target information acquired based on whether the acceleration exceeds or falls below the acceleration threshold. The temporary storage unit for vehicle speed M21 and the temporary storage unit for acceleration M22 only need to be different storage areas.

  The configuration of the temporary storage unit M2 is not limited to the configuration illustrated in FIG. A configuration in which the storage processing unit F4 can perform data operations (save, delete, duplicate, move, etc.) separately from the recording target information acquired based on a change in vehicle speed and the recording target information acquired based on a change in acceleration. It only has to be. The vehicle speed temporary storage unit M21 may be further divided into a plurality of parts as shown in FIG.

  The recording target information stored in the vehicle speed temporary storage unit M21 due to the time change of the vehicle speed may be transmitted to the operation management server 2 based on the time change of the vehicle speed. The time change of the vehicle speed here refers to a behavior in which the vehicle speed exceeds / belows the vehicle speed threshold. For example, the record target information stored in the vehicle speed temporary storage unit M21 based on the fact that the vehicle speed exceeds a certain vehicle speed threshold is stored in the operation management server 2 when the vehicle speed falls below a threshold that is one lower than the latest excess threshold. Send.

  Similarly to the vehicle speed, the recording target information stored in the acceleration temporary storage unit M22 due to the time change of the acceleration may be transmitted to the operation management server 2 based on the time change of the acceleration.

  That is, the plurality of pieces of recording target information stored in the temporary storage unit M2 due to the respective time changes of the plurality of determination state quantities are distinguished and managed for each determination state quantity corresponding to each recording target information ( Update and transmission).

  The contents of the state quantity acquired as the recording target information may be different for each determination state quantity. For example, the recording target information acquired based on the fact that the vehicle speed exceeds / below the vehicle speed threshold is the vehicle speed and position information. On the other hand, the recording target information acquired based on the fact that the acceleration exceeds / below the acceleration threshold may be acceleration, accelerator pedal depression amount, brake pedal depression amount, and position information.

<Modification 4>
In the embodiment described above, the configuration in which the recording target information stored in the temporary storage unit M2 is accumulated in the operation performance DB 22 outside the vehicle is illustrated, but the present invention is not limited thereto. For example, 1 A of vehicle side terminals may be provided with the operation information storage part 14, as shown in FIG.

  The operation information storage unit 14 may be realized using a non-volatile storage medium such as a flash memory. The operation information storage unit 14 may be a storage medium that is removable from the vehicle-side terminal 1A such as an SD card. Of course, the operation information storage part 14 may be implement | achieved using a part of storage area of the non-volatile rewritable storage medium with which the control part 11 is provided.

  And the preservation | save process part F4 of the vehicle side terminal 1A in this modification 4 moves the recording object information stored in the temporary storage part M2 in step S108 to the operation information storage part 14. FIG. Also according to such an aspect, the operation information in a predetermined situation can be efficiently stored. Moreover, according to the structure of this modification 4, operation information can be recorded by vehicle side terminal 1A single-piece | unit.

<Modification 5>
By the way, in general, the legal speed of a road differs depending on the type of road. For example, the legal speed differs between a toll road such as an expressway and a general road. Of course, speed restrictions may be provided on ordinary roads. And if the legal speed is different, the cruise speed of the vehicle also changes.

  Therefore, when the vehicle speed is adopted as the determination state quantity, a threshold value corresponding to the road type is stored in the threshold value storage unit M1, and the threshold value determination unit F3 appropriately corresponds to the road type on which the host vehicle is traveling. The determination is preferably performed using a plurality of threshold values. According to such a configuration, in order to determine whether or not to record the recording target information using a more appropriate threshold according to the type of road that is running, the recording target information at a more appropriate time is stored. Can be recorded.

  In addition, what is necessary is just to use a well-known method for the method of acquiring the road classification on which the own vehicle is traveling. For example, the vehicle-side terminal 1 is configured to include a recording medium on which map data indicating road connection relationships and road types is recorded.

  Then, the threshold determination unit F3 acquires position information indicating the current position of the host vehicle from the vehicle communication IF unit 12 or the like, and the type of the road that is currently traveling based on the current position of the host vehicle and the map data. Should be specified. The map data need not be provided in the terminal itself, and may be configured to be acquired from the outside via the terminal side communication unit 13.

DESCRIPTION OF SYMBOLS 100 Information recording system for vehicles, 1.1A Vehicle side terminal (vehicle information recording device), 2 Operation management server, 3 Communication network, 11 Control part, 12 Vehicle communication IF part, 13 Terminal side communication part (communication part), F1 determination information acquisition unit, F2 recording target information acquisition unit, F3 threshold determination unit, F4 storage processing unit, F5 transmission processing unit, M1 threshold storage unit, M2 temporary storage unit, M2A acceleration temporary storage unit (excess temporary storage Part), M2B temporary storage part for deceleration (temporary storage part for descent), M21 temporary storage part for vehicle speed, M22 temporary storage part for acceleration, 14 operation information storage part, 22 operation result database (operation information storage part)

Claims (8)

A recording target that sequentially acquires recording target information, which is information predetermined as a recording target, among operation information including at least one of vehicle information indicating the driving state of the host vehicle and driver information indicating the state of the driver An information acquisition unit (F2);
A determination information acquisition unit (F1) that acquires a value of a determination state amount that is a state amount included in the operation information and is used to determine whether or not the recording target information should be recorded;
A threshold storage unit (M1) that stores a plurality of threshold values that are set in advance for the determination state quantity and are used to determine whether or not to record the recording target information;
Each of the plurality of threshold values stored in the threshold value storage unit is compared with the value of the determination state amount acquired by the determination information acquisition unit. A threshold determination unit (F3) that determines whether or not any of the plurality of thresholds is exceeded, and whether or not the threshold is exceeded;
A storage processing unit (F4) that stores the recording target information acquired by the recording target information acquisition unit based on a determination result of the threshold determination unit in a temporary storage unit (M2);
The storage processing unit
In a state where the recording target information is not stored in the temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity exceeds the threshold, the recording target information acquisition at that time Storing the recording target information acquired by the storage unit in the temporary storage unit, and holding the threshold value exceeding the determination state quantity value among the plurality of threshold values as the latest excess threshold value,
In the state where the recording target information is stored in the temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity exceeds the threshold higher than the latest excess threshold, The recording target information stored in the temporary storage unit is updated to the recording target information at that time, and the threshold at which the value of the determination state quantity is newly exceeded is set as the latest excess threshold,
In a state where the recording target information is stored in the temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity is lower than the threshold lower than the latest excess threshold, A vehicular information recording device, wherein the recording target information stored in a temporary storage unit is transferred to an operation information storage unit (14, 22) capable of storing the recording target information at a plurality of time points. In claim 1,
The vehicle information recording apparatus characterized in that at least a traveling speed of the host vehicle is used as the determination state quantity. In claim 1 or 2,
The temporary storage unit includes an excess temporary storage unit (M2A) for storing the recording target information when the determination state quantity exceeds the threshold value, and a time point when the determination state quantity falls below the threshold value. A temporary storage unit for lowering (M2B) for storing the recording target information in
The storage processing unit
As the storage destination of the recording target information when the threshold determination unit determines that the value of the determination state quantity exceeds the threshold, the excess temporary storage unit is used.
In the state where the recording target information is stored in the excess temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity is lower than the threshold value lower than the latest excess threshold value The recording target information stored in the excess temporary storage unit is moved to the operation information storage unit,
In a state where the recording target information is not stored in the descending temporary storage unit, if the threshold determination unit determines that the value of the determination state quantity is below the threshold, the recording target at that time The recording target information acquired by the information acquisition unit is saved in the temporary storage unit for lowering, and the threshold value that is lower than the determination state quantity among the plurality of threshold values is held as the latest lowering threshold value. ,
In a state where the recording target information is stored in the descending temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity is lower than the threshold lower than the latest descending threshold , Updating the recording target information stored in the temporary storage unit for lowering to the recording target information at that time, and setting the threshold value at which the value of the state quantity for determination newly falls as the latest lowering threshold value And
In a state where the recording target information is stored in the descending temporary storage unit, when the threshold determination unit determines that the value of the determination state quantity exceeds the threshold higher than the latest descending threshold The information recording apparatus for vehicles, wherein the recording target information stored in the temporary storage unit for descent is moved to the operation information storage unit. In any one of Claims 1-3,
The storage processing unit
When the recording target information is stored in the temporary storage unit, the elapsed time since the recording target information is stored in the temporary storage unit is measured,
The vehicular information recording apparatus, wherein the recording target information whose elapsed time is equal to or longer than a predetermined holding time is transferred to the operation information storage unit. In any one of Claims 1-4,
A communication unit (13) provided outside the host vehicle and communicating with the operation management server (2) including the operation information storage unit (22);
The storage processing unit, when moving the recording target information stored in the temporary storage unit to the operation information storage unit, transmits the recording target information to the operation management server via the communication unit, The vehicle information recording apparatus, wherein the operation management server stores the recording target information in the operation information storage unit. In any one of Claim 2 to 5,
A vehicle information recording device that uses each of a plurality of types of state quantities included in the operation information as the determination state quantity,
The threshold storage unit stores a plurality of the thresholds corresponding to the respective determination state quantities,
The threshold determination unit performs a comparison with a plurality of the thresholds corresponding to the determination state quantity for each of the plurality of determination state quantities,
The storage processing unit
When storing the recording target information in the temporary storage unit based on the determination result of the threshold determination unit, the recording target information is stored in the temporary storage unit separately for each of the plurality of determination state quantities,
In addition, the recording target information stored separately in the temporary storage unit for each of the plurality of determination state quantities is stored on the basis of a time change of the determination state quantity corresponding to each of the recording target information. An information recording apparatus for a vehicle, which is transferred to an information storage unit. In claim 6,
The vehicular information recording apparatus, wherein the content of the recording target information can be different for each state quantity for determination. In any one of Claims 1-7,
The vehicle information recording apparatus, wherein the recording target information includes at least one of position information, vehicle speed, and acceleration.

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