JP2804958B2 - Vehicle operation information collection and analysis system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle operation information collection / analysis system for collecting vehicle operation information including information indicating the speed of a vehicle that changes every moment in the form of digital data, and analyzing the collected digital data. Things.

[0002]

2. Description of the Related Art A vehicle operation information collection and analysis system of this type is mounted on a vehicle, monitors a speed and a traveling distance that change every moment, converts a signal obtained by the monitoring into digital data, and converts the signal into an IC. An in-vehicle device, generally called a digital tachograph, which is generally recorded on a recording medium such as a memory card, and is arranged in an office or the like which manages a vehicle, reads digital data in a recording medium recorded by the in-vehicle device, and reads the read digital data. An analysis device that analyzes and collects vehicle operation information necessary for vehicle management is configured as shown in FIG.

In FIG. 1, reference numeral 1 denotes a rotation sensor which inputs a rotation corresponding to the rotation speed of an axle from a transmission 2 of a vehicle, converts the rotation into a pulse signal having a frequency proportional to the rotation speed, and outputs a pulse signal. This is an in-vehicle device that samples and inputs a pulse signal from the sensor 1, obtains an instantaneous speed and a traveling distance by calculation, performs predetermined data compression processing, and records the data. An IC memory card 4 as a portable recording medium can be detachably mounted on the vehicle-mounted device 3. By mounting the IC memory card 4 on the in-vehicle device 3, the speed, distance, and the like are recorded in the form of digital data.

In FIG. 1, reference numeral 5 denotes an analyzer installed in an office or the like for controlling the operation of the vehicle. An IC memory card 4 removed from the in-vehicle device 3 is attached to the analyzer 5. In addition to reading digital data from the IC memory card 4 and saving it on a recording medium such as a floppy disk, it also collects vehicle operation information obtained by analyzing the saved digital data, and performs printing and display, In order to record data, the IC memory card 4 to be mounted on the in-vehicle device 3 and used is initialized and setting data is recorded.

[0005] In the system having the above-described configuration, when the analyzing device attempts to draw a traveling speed that changes with time on one screen, for example, for 24 hours, the resolution of the time axis becomes 1 minute or more. Conventionally, the following two methods have been considered for performing such drawing.

The first method is to obtain the maximum value or the average value during a unit time corresponding to the resolution and connect the points to draw a graph as shown in FIG. 16, and the second method is to draw the graph as shown in FIG. The corresponding unit time maximum and minimum values were determined, and both points were connected vertically (vertically) to draw a graph as shown in FIG.

[0007]

In the graph drawn by the above-mentioned second method, when the speed change is drastic, as shown in FIG. 17, the adjacent straight lines overlap each other, making it very difficult to see. I often draw graphs.

[0008] However, in the case of the graph drawn by the first method, there is a problem in that when the display is stopped for a short period of time less than the resolution (speed is 0), 0 is not displayed and the display is unnatural.

[0009] Further, even though the vehicle actually starts and ends with 0 at the start or end of the operation of the vehicle, 0 may not be displayed as shown in FIG. 16, resulting in a very uncomfortable graph. .

In view of the above-mentioned conventional problems, the present invention collects vehicle operation information including information indicating the speed of a vehicle that changes every moment in the form of digital data, and analyzes the collected digital data. In an operation information collection and analysis system, a vehicle operation information collection and analysis system is provided, in which when an analysis device draws a speed graph based on speed data collected by an in-vehicle device, a short-time stop state can be displayed on the graph. This is the first object.

In view of the above-mentioned conventional problems, the present invention also provides a vehicle for collecting vehicle operation information including information indicating the speed of a vehicle that changes every moment in the form of digital data, and analyzing the collected digital data. In the operation information collection and analysis system, when a speed graph is drawn in the analysis device based on the speed data collected in the in-vehicle device, the vehicle operation information collection that enables the stop state at the start and end of the operation to be displayed on the graph. A second object is to provide an analysis system.

[0012]

In order to achieve the first object, a system for collecting and analyzing vehicle operation information according to the present invention is provided with a speed measurement system which is measured at regular intervals as shown in FIG. Speed data processing means for obtaining the maximum or average value of the speed and the minimum value or speed 0 for each unit time based on
Calculated by the stage 31-1 and the speed data processing means 31-1
The speed is determined by the maximum value or the ablation value issued,
Create time series data and write to portable recording medium 4
Writing means 31-2 for storing the speed time series data.
Vehicle device 3 for collecting vehicle driving information consisting of data, the
The speed time-series data written in the recording medium 4 is read, and the maximum value or the average value of the read speed time-series data is plotted per unit time, and when there is a speed 0, the speed 0 and the maximum value or An analysis device 5 that draws a speed graph by vertically connecting the average value to the average value is provided.

[0013]

The analysis device 5 plots the maximum value or the average value of the speed time series data read from the recording medium 4 for each unit time, and when there is a speed 0, the speed 0 and the maximum value or the average value And a drawing means 51a-1 which draws a speed graph by connecting them vertically.

[0015] To achieve the second object, the vehicle operation information collection and analysis system according to the present invention, as shown in the basic configuration diagram of FIG. vehicle device 3 for collecting vehicle driving information by writing the rate time-series data consisting of data of the maximum value or the average value and the minimum value or zero velocity of the speed portable recording medium 4, the written in the recording medium 4 Speed time series data that has been read, the maximum value or average value of the read speed time series data is plotted for each unit time, and when there is a speed 0 at the start and end of operation, the speed 0 and the maximum value Alternatively, it is characterized by comprising an analyzing device 5 which draws a speed graph by vertically connecting the average value to the average value.

A speed data processing means 31-1 for obtaining a maximum value or an average value per unit time and a minimum value or a speed 0 per unit time based on the measured speed; The speed time-series data is created from the maximum value or the average value and the minimum value or the speed 0 calculated by the above, and is written on the portable recording medium 4 to write the data.
2 is provided.

The analysis device 5 plots the maximum value or the average value of the speed time series data read from the recording medium 4 for each unit time, and sets the speed 0 at the start and end of the operation.
When there is, a drawing means 51a-1 for drawing a speed graph by vertically connecting the speed 0 and the maximum value or the average value is provided.

[0018]

In the above construction, the maximum or average value of the speed and the minimum value or the data of the speed of zero per unit time are based on the speed measured at regular time intervals and written on the recording medium in the vehicle-mounted device. The analysis device 5 reads the speed time series data, plots the maximum value or the average value of the read speed time series data for each unit time, and outputs the speed 0
When there is, the speed graph is drawn by connecting the speed 0 and the maximum value or the average value vertically, so that the speed graph can be set to 0 even if the stop time is short.

Further, based on the speed measured at regular intervals, which is written and collected on the recording medium 4 in the vehicle-mounted device 3, the speed at which the maximum or average value of the speed and the minimum value or the data of the speed 0 are recorded per unit time. The analysis device 5 reads the series data, plots the maximum value or average value of the read speed time series data per unit time, and, when there is a speed 0 at the start and end of the operation, the speed 0 and the maximum value Alternatively, since the speed graph is drawn by connecting the average value and the average value, the speed graph can be set to 0 at the start and end of the operation.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a specific configuration of an in-vehicle device constituting a part of the vehicle operation information collection / analysis system according to the present invention,
In the figure, an in-vehicle device 3 is a microcomputer (CPU) 31 that operates according to a predetermined control program.
Having. The CPU 31 stores an RO for storing a control program.
It has a built-in RAM 31b for storing various data for M31a and signal processing.

The CPU 31 has an interface (I /
F) The distance pulse signal from the rotation sensor 1 via 32 and the accessory (A) of the ignition (IGN) switch
CC) A signal indicating the state of the switch is input, and an IC memory card 4 as a recording medium is detachably connected via a connector (not shown). Reference numeral 33 denotes a setting switch for calculating a speed or a traveling distance based on a signal from the connected rotation sensor 1 and, for example, a setting switch for setting a predetermined value or the like according to the type thereof; A lid open detection switch for detecting the opening of a lid provided in the opening for performing the operation.

In the in-vehicle apparatus 3 having the above-described configuration, when the IC memory card 4 in which a card ID for identifying the card is previously written is mounted, the card is mounted on the IC memory card 4. Compressed speed data and one-minute time-series data during each operation are written together with an operation ID for identifying each operation, which is defined as a period from when the lid is closed to when the lid is opened.

For this purpose, the CPU 31 inputs and processes a signal generated by the rotation sensor 1 in accordance with the running of the vehicle, measures the running speed of the vehicle every 0.5 seconds, and obtains the measured speed. The speed data is compressed and written to the IC memory card 4. In addition, the maximum and minimum speed values and the traveling distance for each minute are measured, and the one-minute time-series data obtained by this measurement is calculated as I
Write to C memory card 4.

FIG. 3 shows a write format for the IC memory card 4. In FIG.
Are the card ID writing area 41 and the operation I
And D areas 42 ₁ to 42n, the time series data area 43 ₁ to 43n 1 minute, and the speed compressed data area 44 ₁ to 44n, made up of option data area 45..

The above 1 minute time series data area 43 _{1 to} 4
3n is the maximum speed V for each run for one minute from the start of each operation.
n _max , minimum speed Vn _min and a predetermined resolution, for example, 1
It consists of a traveling distance Dn in units of 00 m.

The speed-compressed data every 0.5 seconds is analyzed when the drawing time on one screen is short and the enlargement ratio is large, and the one-minute time series data is analyzed when the drawing time on one screen is long and the enlargement ratio is small. Each is selected and used in the device.

The operation of the vehicle-mounted device 3 for writing data in the format shown in FIG. 3 will be described below with reference to the flowcharts of FIGS. The CPU 31 starts operation when the power is turned on, and performs initialization in the first step S1. In the initialization in step S1,
Various flags, which will be described later, are set to 0, and areas used for various processes are cleared. Thereafter, the process proceeds to step S2 to determine whether or not the ACC of the IGN switch is in an on state. When the determination in step S2 is YES, the process proceeds to step S3, in which the state of the lid open detection switch 34 for detecting the opening of the lid provided in the opening for inserting and removing the IC memory card 4 is determined. It is determined whether writing is possible.

If the determination in step S3 is YES, the flow advances to step S4 to determine whether or not IDOKF (flag) is 1, and if the determination is NO, the flow advances to step S5 to set IDOKF to 1 and then to step S5. The process proceeds to S6, where a card start process involving reading and writing of a card related to the mounting of the IC memory card 5 is performed, and then proceeds to step S7. If the determination in step S4 is YES, the process skips steps S5 and S6 and proceeds to step S7.

In step S7, the CPU 31
After performing the clock processing for the clock that counts the time of year, month, day, hour, minute, and second configured in the RAM 31b, the process proceeds to step S8. In step S8, it is determined whether or not 0.5 seconds have elapsed. If the determination is YES, the process proceeds to step S9, where the speed is calculated based on the distance pulse input from the rotation sensor 1, and the next step In S10, time-series data processing is performed on the calculated speed.

Then, the process proceeds to a step S11, in which a compression process for the calculated speed is performed, and then a step S14 is performed.
Proceed to. When the determination in step S8 is NO,
That is, when 0.5 second has not elapsed, the above-described step S is performed.
Skip steps 9 through S11 and proceed to step S14. In step S14, a clock is displayed, and the process returns to step S2.

If the determination in step S2 is NO, that is, if the ACC of the IGN switch is in the OFF state, the process proceeds to step S15 to put the CPU 31 in the sleep state, and then proceeds to step S16, where the same clock processing as in step S7 is performed. Is performed, and in the next step S17, a determination similar to the above 2 is performed, and the determination in step S17 is NO.
In step S15, the process returns to step S15, the ACC of the IGN switch is turned on, and the determination in step S17 is Y.
Steps S15 to S17 are repeated until ES is reached,
If the determination in step S17 is YES, the process returns to step S2.

If the determination in step S3 is NO, that is, the state of the lid open detection switch 34 for detecting the opening of the lid provided in the opening for inserting and removing the IC memory card 4, the IC memory card 4 If it is determined that writing cannot be performed, the process proceeds to step S18, where the ID
It is determined whether or not OKF is 1 and this step S18
Is YES in step S19.
OKF is set to 0, the card end processing is performed in the next step S20, and the process returns to the step S2. If the determination in step S18 is NO, step S1
Steps 9 and S20 are skipped and the process returns to step S2.

The time series data processing in step S10 is specifically performed by executing the flowcharts shown in FIGS. In order to execute this flowchart, various areas as shown in FIG. 8 are prepared in a predetermined area of the RAM 31b. That is, VMAX storing the maximum speed value, VMIN storing the minimum speed value, 1 minute counter area TIME, and card address pointer A
P, a distance area DSP, and a 100 m count area SP are prepared.

In the time series data processing, in the first step S10a, it is determined whether or not the current speed calculated in the step S9 is larger than the value stored in VMAX in the RAM 31b. If YES, the process proceeds to step S10b, where the current speed is stored in VMAX instead of the previous value, and then step S10b is executed.
Proceed to 10c. On the other hand, the determination in step S10a is N
In the case of O, step S10b is skipped and step S1
Go to 0c.

In step S10c, it is determined whether or not the current speed calculated in step S9 is smaller than the value stored in VMIN in the RAM 31b. If the determination is YES, the flow advances to step S10d to proceed to VMIN. Then, the current speed is stored instead of the previous value, and the process proceeds to step S10e. On the other hand, step S1
When the determination of 0c is NO, the process skips step S10d and proceeds to step S10e.

In step S10e, it is determined whether or not 100 mF (flag), which will be described later, is 1. When the determination is YES, the process proceeds to step S10f, where 1 is set.
00mF is set to 0. Next, the process proceeds to step S10g, where the DSP is incremented, that is, the DSP is changed to DS.
After setting P + 1, the process proceeds to step S10i. On the other hand, if the determination in step S10e is NO, step S1
Skip from 0f to S10g and proceed to step S10i.

In step S10i, it is determined whether one minute has elapsed. If the determination in step S10i is YES, the process proceeds to step S10j, where IC
The value stored in VMAX at the address M (AP) specified by the card address pointer AP of the memory card 4, the value stored in VMIN at the next address M (AP + 1), and the next address ( AP + 2) DS
Write the contents of P respectively. Then, the next step S
At 10k, AP + 3 is stored in the AP to prepare the next write address, and then the process proceeds to step S11. On the other hand, if the determination in the step S10i is NO, that is, if one minute has not elapsed, the step S10j
And skip S10k and proceed to step S11.

When a distance pulse is input from the rotation sensor 1 in the process of executing the flowcharts of FIGS. 5 and 6, the interrupt flowchart of FIG. 7 is executed, and SP is incremented in the first step S21. That is, SP is set to SP + 1. Thereafter, the process proceeds to step S22 to determine whether or not the vehicle has traveled 100 m according to the content of the SP. If the determination in step S22 is YES, the process proceeds to step S23, where SP is set to 0. In subsequent step S24, 100 mF is set to 1 and the original value is set. Return to step. On the other hand, when the determination in step S22 is NO,
That is, when the vehicle has not traveled for 100 m, the process skips steps S23 and S24 and immediately returns to the original step.

As is clear from the description of the flowcharts of FIGS. 6 and 7, the CPU 3 of the vehicle-mounted device 3 determines the maximum value or the average value per unit time and the minimum value or the speed 0 based on the measured speed. Required speed data processing means 3
1-1, and the maximum or average value and the minimum value or the speed 0 calculated by the speed data processing means 31-1 to create speed time-series data and write the data on the portable recording medium 4 to write the time series data. Working as 2.

The compression processing in step S11 is performed by shifting the speed calculated in step S9 to the address in the IC memory card 4 designated by the address pointer every 0.5 seconds in the opposite direction to the operation ID time-series data. Writing is performed from a position having a large address. As a specific method of this compression, for example, the method proposed in Japanese Patent Publication No. 3-53673 can be applied.

With the above operation, the data including the compressed speed data and the one-minute time series data as shown in FIG. 3 is written into the IC memory card 4 in the on-vehicle device 3, and this data is analyzed as described later. It is read and analyzed by the device 5.

On the other hand, the analysis device 5 installed in a vehicle management office of a transportation company that manages the operation of vehicles has a specific configuration as shown in FIG. It has a personal computer (personal computer) 51 that operates. The personal computer 51 includes a personal computer main body 51a, a keyboard 51b connected thereto, and a CR.
T51c, floppy disk (FD) driver 51d,
Printer 51e and card reader / writer (R / W) 5
1f is connected.

[0043] In the analyzing apparatus 5, by starting wearing the program floppy disk (FD) 51 g ₁ which stores such analysis program to floppy disk driver 51d, installed in the card R / W51f removed from the vehicle-mounted device 3 is read operational data from the IC memory card 4, or whether this or save the data floppy disk (FD) 51 g ₂ are attached to the FD driver 51d, to analyze the operational data read from the IC memory card 4 directly once analyzing the operational data that is saved in the data FD51g _2, list obtained as a result of this analysis, operation management table, graph, and safety management table C
In addition to displaying on the RT 51c or printing by the printer 51e, initialization of the IC memory card 4 mounted on the in-vehicle device 3 for use in recording operation data and recording of setting data are performed.

In the analyzing apparatus 5 having the above-described configuration, the personal computer main body 51a executes the work shown in the flowchart of FIG. That is, the personal computer main body 51a executes the program F
Start by mounting D51g _1, the processing menu screen in the first step S31 the CRT51
c. Then, the process proceeds to step S32, where the selection by the ten keys of the keyboard 51b is waited.

When the card reading is selected by the ten keys of the keyboard 51b, the flow advances to step S33 to perform card reading processing for reading operation data from the IC memory card 4 mounted on the card R / W 51f, and then to step S34. After the operation data is read and the operation data is stored, the process proceeds to step S35, where the card is initialized, and the next step S36 is performed.
Waits for selection by setting data.

The FD is operated by the ten keys on the keyboard 51b.
When the reading is selected, the process proceeds to step S37 and the FD
Waits for selection by the setting data proceeds to the step S36 after performing the FD reading process of reading the operational data from the data FD51g ₂ mounted on the driver 51d.

When the card confirmation processing is selected by the ten keys of the keyboard 51b, the process proceeds to a step S38, where the IC memory card 4 mounted on the card R / W 51f is read.
Perform a card confirmation process to confirm. Then step S3
The process proceeds to step S9, where a FW change process for changing a free word (FW) is performed. In step S40, a card reuse process is performed, and the process returns to the menu screen in step S31. When the end is selected in step S32, the end processing is performed in step S41, and the operation ends.

In the above step S36, selection is made of any of the list creation and display processing in step S42, the operation management table creation and display processing in step S43, the graph creation and display processing in step S44, and the safety management table creation and display processing in step S45. Perform processing. After the execution of steps S42 to S45, the process proceeds to step S46 to wait for selection by the function keys of the keyboard 51b.

According to the selection by the function key in step S46, a list creation and display process in step S47, an operation management table creation and display process in step S48, a safety management table creation and display process in step S49, a graph creation and display process in step S50, After performing the printing process in step S51, the process returns to step S46, and the process returns to step S31 by non-selection.

In the graph creation and display processing in steps S44 and S50, data output processing for causing the CRT 61c or the printer 61e to draw a speed graph or the like is performed. As one example, there is a speed graph shown in FIG. 11 in which the maximum value (average value) and 0 are vertically connected on the time axis when the minimum value of the speed per unit time is 0 when drawing. The maximum value (average value) only at the start and end of operation
There is a velocity graph shown in FIG.

The operation of creating and displaying the speed graphs shown in FIGS. 11 and 12 using the compressed speed data as described above will be described with reference to FIGS. 13 and 14 which are flowcharts of the graph creation and display processing. This will be described in detail below.

In the graph creation and display processing according to the flowchart of FIG. 13, the register n for designating the data number is set to 0 in the first step S101, and the register is read from the one-minute time series data read from the IC memory card 4 in the subsequent step S102. V specified by n
Read out _{n max} and plot it. Thereafter, the process proceeds to step S103, where V
It is determined whether or not _{n min} is 0, and in this step S10
When third determination is YES then outputs a signal to bear V _{n max} and V _{n min} proceeds to step S104 proceeds to step S105. On the other hand, if the determination in step S103 is NO
In the case of, step S104 is skipped and step S10
Go to 5.

In step S105, the register n is incremented, that is, set to n + 1. Thereafter, the flow advances to step S106 to determine whether or not n is equal to N + 1, that is, whether or not the processing has proceeded to the last data. If the determination in step S106 is YES, the graph creation and display process ends, and the process returns to the original process. If the determination is NO, the process returns to step S102 and repeats steps S102 to S106.

As is clear from the description of the flowchart of FIG. 13 described above, the main unit 5 of the personal computer 51 of the analyzer 5
1a plots the maximum value or average value of the speed time-series data read from the recording medium 4 for each unit time, and vertically connects the speed 0 and the maximum value or average value when there is a speed 0. It functions as a drawing means 51a-1 for drawing a speed graph.

In the graph creation display processing according to the flowchart of FIG. 14, the register n for designating the data number is set to 1 in the first step S201, and then the process proceeds to step S202, where it is determined whether or not V _{0 min} is 0. Is determined.

If the determination in step S202 is YES, the flow advances to step S203 to connect V _{0 max} and V _{0 min} , and the flow advances to step S204. If the determination in step S202 is NO, the flow advances to step S205 to plot V _{0 max} . Then, the process proceeds to step S204. Step S
In step 204, it is determined whether or not n is equal to N. If the determination is NO, the process proceeds to step S206 and V
_After plotting _{n max} , the process proceeds to step S207 and n
Is incremented, that is, n is set to n + 1. Thereafter, the process proceeds to step S208 to determine whether or not n is equal to N + 1, that is, whether or not the processing up to the last data has been completed. If the determination is YES, the process returns to the original flowchart. It returns to step S204.

If the determination in step S204 is YES, that is, if it is the last data, step S204
Proceeding to 209, it is determined whether or not V _{N min} is 0. When this determination is NO, the process proceeds to step S206,
When the determination is YES, the process proceeds to step S210 and V
From signed a _{N max} and V _{N min} proceeds to the step S207.

As is clear from the description of the flowchart in FIG. 14, the main unit 5 of the personal computer 51 of the analyzer 5
1a plots the maximum value or average value of the speed time series data read from the recording medium 4 per unit time, and when there is a speed 0 at the start and end of operation, the speed 0 and the maximum value or average It functions as a drawing unit 51a-1 that draws a speed graph by vertically connecting the values.

In the above embodiment, the minimum value data is collected separately from the maximum value data as one-minute time series data. However, the most significant bit of the maximum value data is used as a flag bit. The flag 0 may indicate the minimum speed 0, and the flag 1 may indicate that the minimum value is not 0.

[0060]

As described above, according to the present invention, the speed time series consisting of the data of the maximum value or average value and the minimum value or the speed 0 for each unit time based on the speed measured for each fixed time. Data is collected, the maximum value or average value of the speed time series data is plotted for each unit time, and the speed 0
When there is a speed 0 at the beginning or end of the operation and when the speed is 0, the speed 0 and the maximum value or the average value are connected vertically to draw a speed graph, and the speed graph at the start and end of the operation is surely obtained. Since it is set to 0, a natural speed graph without a sense of incongruity can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a vehicle operation information collection and analysis system according to the present invention.

FIG. 2 is a diagram showing a specific configuration of a vehicle-mounted device of the system according to the present invention.

FIG. 3 is a diagram showing an example of a format of data written to an IC memory card by the in-vehicle device in FIG. 2;

FIG. 4 is a diagram illustrating a configuration example of time-series data.

FIG. 5 is a flowchart showing tasks performed by a CPU of the vehicle-mounted device of FIG. 2;

FIG. 6 is a flowchart showing details of a part in FIG. 5;

FIG. 7 is a flowchart showing details of another part in FIG. 5;

8 is a diagram showing various areas prepared in a RAM for executing the flowchart of FIG. 6;

FIG. 9 is a diagram showing a specific configuration of a system analysis device according to the present invention.

FIG. 10 is a flowchart showing work performed by a personal computer of the analyzer of FIG. 9;

11 is a diagram illustrating an example of a speed graph drawn by executing the flowchart of FIG. 10;

FIG. 12 is a diagram showing another example of a speed graph drawn by executing the flowchart of FIG. 10;

FIG. 13 is a flowchart showing an example of details of a part in FIG. 10;

FIG. 14 is a flowchart showing another example of the details of a part of FIG. 11;

FIG. 15 is a diagram showing a schematic configuration of a conventional general vehicle operation information collection and analysis system.

16 is a diagram showing an example of a speed graph drawn by the analysis device in FIG.

17 is a diagram showing another example of a speed graph drawn by the analysis device in FIG.

[Explanation of symbols]

 Reference Signs List 3 vehicle-mounted device 4 recording medium (IC memory card) 5 analyzer 31-1 speed data processing means (CPU) 31-2 writing means (CPU) 51a-1 drawing means (personal computer body)

Claims (5)

(57) [Claims] 1. A maximum value or an average value and a minimum value or a speed of 0 for each unit time based on a speed measured for each fixed time.
Speed data processing means for determining
Maximum or average value and minimum value or speed 0 calculated by step
Creates time-series data by means of a portable recording medium
Writing means for writing to the speed time-series data.
An in-vehicle device that collects vehicle operation information consisting of data, reads speed time-series data written in the storage medium, plots the maximum value or average value of the read speed time-series data per unit time, and An analysis device for vertically connecting the speed 0 and the maximum value or the average value when there is a speed 0 to draw a speed graph; 2. An apparatus according to claim 1 , wherein said analyzing device reads from said recording medium.
The maximum value or average value of the incorporated speed time series data in unit time
Each time, and when there is a speed 0, the speed 0 and the
Draw a speed graph by connecting the maximum value or average value vertically
Vehicle driving information collection and analysis system according to claim 1, characterized in that it comprises a picture unit. 3. A simple method based on a speed measured at regular time intervals.
Maximum or average value of speed and minimum value or speed of 0 for each time
Portable time-series data consisting of multiple data
A vehicle-mounted device that collects vehicle operation information by writing to a vehicle, and reads speed time-series data written to the recording medium.
The maximum value or the average of the read speed time series data.
The average value is plotted every unit time, and the start and end of operation
When there is speed 0 at the end of the test, the speed 0 and the maximum value or average
With an analysis device and to draw the velocity graph by connecting the values vertically
A vehicle operation information collection and analysis system , characterized in that: 4. The method according to claim 1, wherein the on-vehicle device is configured to determine a speed based on the measured speed.
Maximum or average value and minimum value or speed per unit time
Speed data processing means for determining 0 and the speed data processing
Maximum or average value and minimum value or speed calculated by means
0 to create speed time-series data for portable recording media
Writing means for writing on the body .
The vehicle operation information collection and analysis system according to claim 3 . 5. An apparatus according to claim 1 , wherein said analyzing device reads from said recording medium.
The maximum value or average value of the incorporated speed time series data in unit time
Each time, and speed 0 at the start and end of operation
At some point, the speed 0 and the maximum value or average value are connected vertically.
It is characterized in that it comprises a drawing means for drawing the speed graph Nde
The vehicle operation information collection and analysis system according to claim 3 .