JPH0831143B2 - Digital operation data record analysis system, recording device and recording medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is a digital device that records digital operation data indicating an operation state such as a traveling speed and a traveling distance of a vehicle in a recording medium and analyzes the collected digital operation data. An operation data recording / analysis system, a recording device that records digital operation data indicating the operation status such as the traveling speed and mileage of a vehicle in a recording medium, and digital operation data indicating the operation status such as the traveling speed and mileage of the vehicle The present invention relates to a recording medium to be recorded.

[Conventional technology]

Generally, a recording / analyzing system of this kind of digital operation data comprises a recording device 1, an IC memory card 2 as a recording medium, and an analyzing device 3, as shown in FIG.

In the figure, the recording device 1 is mounted on a vehicle and creates digital operation data indicating the traveling speed and the traveled distance of the vehicle, which change every moment, and compresses the created digital operation data based on a predetermined set value. And is recorded on the recording medium 2. The analysis device 3 is installed in an office that manages the operation of the vehicle, reads the digital operation data compressed and recorded in the recording medium 2, expands the read digital operation data, analyzes the data, and displays the analysis result. The IC memory card 2 is initialized in addition to being displayed on the screen of the display device, printed on a print sheet by a printer, and output.

Generally, in order to perform the above-described recording analysis, the tolerance of speed compression used on the recording side (allowable error range), the sampling time, and the recording location of the recording medium (whether or not to record options) are set as specifications. It must be. For example, the accuracy of the digital speed data obtained by the compression process depends on the speed compression tolerance and the sampling time as the predetermined set values. Therefore, when the accuracy of the digital speed data desired by the user is different, I am trying to change the setting value.

By the way, since the set value is also used when the analyzing device 3 reads the digital operation data recorded in the recording medium 2 and expands the same, the recording medium 2 includes the compressed digital operation data and the above-mentioned set value. Predetermined set values are also recorded.

In the above-mentioned conventional system, more specifically, the recording device 1 samples and inputs an electric signal having a cycle corresponding to the rotation of an axle generated by a rotation sensor connected to a transmission of a vehicle by a connecting means, In addition to calculating the speed and mileage by calculation, data compression processing to shorten the data length when recording the speed and mileage calculated by this calculation as digital data in the detachably mounted IC memory card 2, etc. It is composed of a microcomputer (CPU) that does.

On the other hand, the analysis device 3 is a personal computer (PRT) having a cathode ray tube (CRT), keyboard, printer, etc.
C) and a card reader / writer (RW) connected to this PC
And the IC memory card 2 is attached to the RW,
The digital operation data recorded in the IC memory card 2 is read by the RW, transferred to the PC, and stored in the internal memory. The data stored in this memory is expanded or analyzed according to an analysis program, or recorded on a floppy disk (FD). The digital operation data for one day that has been expanded by the analysis device 3 is displayed in the form of a 24-hour graph on the screen of a CRT, for example, or printed on printer paper by the analysis process.

The RW of the analysis device 3 is also used to write predetermined data into the recording medium 2 when the IC memory card 2 is initialized.

[Problems to be Solved by the Invention]

In the above-mentioned conventional system, the digital operation data such as speed and mileage is basic, and is a common item even when manufacturers and models are different. Therefore, the recording format for the IC memory card 2 is the manufacturer and model. Data can be analyzed by any analysis device by making it common to in-vehicle recording devices different from each other.

However, other than basic digital operation data such as speed and mileage, items of optional data such as work content and tachometer data, and the memory capacity used for recording the data can be set arbitrarily for each manufacturer or model. Can be different from each other.

For this reason, if there are no restrictions on the writing of option data, if the IC memory card 2 is mounted on a plurality of manufacturers or different types of vehicle-mounted recording devices 1 and used, the basic digital data already written and recorded. The operation data may be destroyed by another vehicle-mounted recording device 1.

Therefore, in view of the above-mentioned point, the present invention can record the basic digital operation data by using different types of recording devices and can analyze the data by any analysis device. An object of the present invention is to provide a record analysis system for digital operation data that prevents the basic digital operation data that has already been recorded from being destroyed by the recording by the recording device.

In view of the above, the present invention is also capable of recording option data on a predetermined recording medium, and even if a recording medium that cannot record option data is attached, It is an object of the present invention to provide a digital operation data recording device capable of newly recording digital operation data without destroying the basic digital operation data already recorded.

Further, in view of the above, the present invention can record optional data in an arbitrary area by designation, and can record basic digital operation data by different types of recording devices. , Which can be analyzed by any analysis device, and even when the basic digital operation data is already recorded by another recording device, without destroying the already recorded data, It is an object of the present invention to provide a new recording medium for digital operation data in which basic digital operation data is recorded.

[Means for solving the problem]

In order to solve the above-mentioned problems, the digital operation data recording / analysis system according to the present invention records predetermined digital operation data indicating an operation state of a vehicle as shown in the basic configuration diagram of FIG. A recording medium 2 having a digital operation data recording area 2a ₂ and the recording medium 2 is detachably mounted, the operation state of a vehicle is monitored to create digital operation data, and the created digital operation data is used as the recording medium. A recording device 1 for recording on the recording medium 2 and the recording medium 2
In a digital operation data recording / analyzing system comprising an analyzing device 3 for reading the digital operation data recorded in (1) and analyzing and processing the read digital operation data, it is possible to determine by whom the recording medium 2 was initialized. and initialization identification information identifying the common data recording area in which the optional area designation information is recorded to specify an optional area for recording options data other than the digital operational data part of the digital operational data recording area 2a ₂
Have 2a _1, holding the recording device 2 and the common data recording reading means 12c ₁ for reading an initialization identification information and options area designation information recorded in the area 2a _1, the identification information set in advance an identification information holding means 12d for the comparing the read initialization identification information by reading means 12c ₁ and the identification information holding means 12d identification information held in a comparison means 12c ₂ for detecting the coincidence of both , The comparison means
When a match is detected by 12c ₂ and the option area designation information read by the reading means 12c ₁ is present,
Recording means 12c ₃ for recording option data in the option area designated by the option area designation information
When no match is detected by the comparing means 12c ₂ and there is option area designation information read by the reading means 12c ₁ , digital operation data is recorded in the option area designated by the option area designation information. and a recording inhibiting means 12c ₄ for prohibiting, said analysis device 3, the common data recording area 2a ₁ of the said initialization authorization information at the time of initialization of the recording medium 2 and the optional area designation information the recording medium 2 It is characterized by having an initialization means 31a ₁ for writing to.

As shown in the basic configuration diagram of FIG. 1, a digital operation data recording device according to the present invention for solving the above problems is a digital recording device in which predetermined digital operation data indicating an operation state of a vehicle is recorded. Operation data recording area 2a
_In the recording device 1 of the digital operation data, the recording medium 2 having 2 is detachably mounted, and the digital operation data for monitoring the operation state of the vehicle and creating the digital operation data is recorded in the recording medium 2. 2 recorded in the common data recording area 2a _1, and initialization is initialized identification information identifies whether made by anyone, the option data other than the digital operational data part of the digital operational data recording area 2a ₂ Reading means 12c ₁ for reading option area designation information designated as an option area to be recorded, identification information holding means 12d for holding preset identification information, initialization identification information read by the reading means 12c ₁ and the above comparing the identification information stored in the identification information holding means 12d, and comparing means 12c ₂ for detecting a coincidence between the two, said comparison means 12c ₂ Accordingly match is detected,
Further, when there is the option area designation information read by the reading means 12c ₁ , a match is detected by the recording means 12c ₃ which records the option data in the option area designated by the option area designation information and the comparison means 12c ₂ . Sarezu, and when the reading unit 12c is optional area designation information read out by the ₁ and a recording inhibiting means 12c ₄ to prohibit recording the digital operational data in the option area specified by the option area designation information It is characterized by having.

As shown in the basic configuration diagram of FIG. 1, a digital operation data recording medium according to the present invention for solving the above problems is a digital recording medium in which predetermined digital operation data indicating an operation state of a vehicle is recorded. Operation data recording area 2a
_{In the} recording medium 2 having 2, initialization identification information for identifying who has performed initialization and a part of the digital operation data recording area is designated as an option area for recording option data other than digital operation data. It is characterized by having a common data recording area 2a _{1 in} which option area designation information is recorded.

[Action]

In the configuration of FIG. 1 described above, by whom the recording medium 2 is initialized in addition to the digital operation data recording area 2a ₂ in which predetermined digital operation data indicating the operation state of the vehicle is recorded. common data recording area 2a in which the initializing identification information for identifying, and the optional area designation information for designating a portion of the digital operational data recording area 2a ₂ as optional area for recording options data other than the digital operational data is recorded Having _one .

Further, the recording medium 1 is detachably mounted, the operation state of the vehicle is monitored, digital operation data is created, and the created digital operation data is recorded in the recording medium 2. Reading means 12c ₁ for reading the initialization identification information and option area designation information recorded in the recording area 2a ₁ , identification information holding means 12d for holding preset identification information, and reading by the reading means 12c ₁ . Initialization identification information and the identification information holding means 12
comparing the identification information held in d, the comparing unit 12c ₂ for detecting a coincidence between the two, matching by the comparison means 12c ₂ is detected and the option area designation information read by said reading means 12c ₁ At some time, recording means 12c ₃ for recording option data in the option area designated by the option area designation information, and the comparing means
No match is detected by 12c ₂ and the reading means 12c ₁
When the option area designation information read by, and a recording inhibiting means 12c ₄ to prohibit recording the digital operational data in the option area specified by the option area designation information.

Further, the analysis device 3 that reads the digital operation data recorded on the recording medium 2 and analyzes the read digital operation data includes the initialization identification information and the option area designation information when the recording medium 2 is initialized. Is written in the common data recording area 2a ₁ of the recording medium 2 as an initialization means 31a ₁
Have.

Therefore, in the digital operation data recording / analysis system including the recording medium 2, the recording device 1, and the analysis device 3, the basic digital operation data can be recorded by different types of recording devices. At the same time, it can be analyzed by any analyzer.

Moreover, in the recording device 1, as a result of the comparison between the initialization identification information read by the reading means 12c ₁ by the comparison means 12c ₂ and the identification information held in the identification information holding means 12d, both of them coincide with each other, and the option area is designated. When there is information, the recording means 12c ₃ records the option data in the option area specified by the option area specification information, and when the two do not match, the recording prohibition means 12c ₄ causes the option area to be recorded even if the option area specification information exists. Since it is prohibited to record the digital operation data in, the basic digital operation data already recorded by another recording device 1 is not destroyed.

Further, in the recording apparatus 1 according to the present invention, the option data can be recorded on the predetermined recording medium, and even if the recording medium which cannot record the option data is attached, the option data is recorded on the recording medium. It is possible to newly record digital operation data without destroying the basic digital operation data already recorded.

Further, in the recording medium 2 according to the present invention, the optional data can be recorded in any area by designation, and the basic digital operation data can be recorded by different types of recording devices. , Which can be analyzed by any analysis device, and even when the basic digital operation data is already recorded by another recording device, without destroying the already recorded data, New basic digital operation data is recorded.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows an embodiment of a recording and analyzing system for digital operation data according to the present invention. In FIG. 2, the same parts as those described above with reference to FIG.
Detailed description thereof will be omitted.

In FIG. 2, the recording apparatus 1 samples a rotation sensor 11 connected to a transmission of a vehicle by connecting means (not shown) and an electric signal from the rotation sensor 11 and inputs the same to obtain a speed and a traveling distance by calculation. When recording the speed and mileage obtained by this calculation as basic digital operation data in the IC memory card 2 as a recording medium, the device main body 12 performs a work such as compression processing of the data. Twelve
A card insertion hole 12a for inserting / removing the IC memory card 2 is provided, and by mounting the IC memory card 2 in the card insertion hole 12a, various data of the card recorded in the IC memory card 2 is recorded. Is read or the compressed digital operation data is written in the IC memory card 2. The recording device 1 also has a function of recording work content, tachometer data, and the like as option data in an area designated by the various data, in addition to the basic digital operation data.

On the other hand, as shown in FIG.
A personal computer (PC) 31 including an RT 31b, a keyboard 31c, a floppy disk (FD) driver 31d, a printer 31e, etc., and a reader / liner (RW) 32 connected to the main body 31a of the PC 31. FD33 and 34 are detachably mounted, and RW32 is IC memory card 2 detachably mounted.

As shown in FIG. 3, the IC memory card 2 has a built-in memory 2a in which 1 word is composed of 8 bits (1 byte). In the memory 2a, a common data recording area 2a ₁ and basic digital operation are provided. A digital operation data recording area 2a ₂ for recording data and an option data recording area 2a ₃ provided when option data is recorded are provided.

The aforementioned common data recording area 2a _1, IC memory card 2
Initialization maker code consisting of 1 byte when initializing
In addition to the area in which 2a ₁₁ and the option start address 2a ₁₂ consisting of 2 bytes indicating the start address of the area used for recording option data are recorded, the number of IDs consisting of 1 byte corresponding to the number of times of operation 2 _The area where ₁₃ is recorded is formed.

The aforementioned digital operational data recording area 2a _2, recording the distance data 2a ₂₂ that the ID data 2a ₂₁ consisting of 8 bytes for each service toward from the lower to higher addresses consist of any number of bytes for each operation are alternately Area and the area where the speed data 2a ₂₃ consisting of an arbitrary number of bytes of each operation are recorded from the upper address to the lower address, and when the option data is recorded, the option data 2a An area consisting of an arbitrary number of bytes on the most significant side where ₂₄ is recorded is formed.

Each of the ID data 2a ₂₁ is a 1-byte manufacturer code 2a ₂₁₁ that identifies the manufacturer of the in-vehicle recording device 1, and
1-byte sales office code 2a ₂₁₂ indicating the sales office to which the vehicle on which the recording apparatus 1 is mounted belongs, and 1-byte vehicle code 2a indicating the vehicle on which the recording apparatus 1 is installed.
Distance end address consisting of ₂₁₃ and 2 bytes indicating the address where the last one of the distance data for each operation is recorded
2a ₂₁₄ , speed end address 2a ₂₁₅ consisting of 2 bytes indicating the address where the last one of the speed data of each operation is recorded, and speed sampling time 2a ₂₁₆ consisting of 1/2 byte used for speed calculation And the speed tolerance 2a ₂₁₇ consisting of 1/2 byte used when compressing the speed data, other than the distance end address 2a ₂₁₄ and speed end address 2a ₂₁₅ above, manufacturer code 2a ₂₁₁ , sales office code
2a ₂₁₂ , vehicle code 2a ₂₁₃ , speed sampling time 2a
_{The 216} and the speed tolerance 2a ₂₁₇ are fixed in advance for the recording device 1 which records the digital operation data on the IC memory card 2.

The speed tolerance 2a ₂₁₇ indicates an error range that is allowed during recording, and is related to the accuracy of the speed data collected together with the speed sampling time 2a ₂₁₆ , and the accuracy of the data obtained by the compression process depends on these. Dependent, these data are essential for decompression and analysis on the analysis side.

Further, at least one of the distance data and the speed data of each operation, the operation start time and the operation end time of each operation are recorded at the beginning and at the end, respectively. It is important for allocating during this time and knowing the speed and mileage at each time.

Further, one operation is defined as a period from when the IC memory card 2 is attached to the recording device 1 to when it is removed.

On the other hand, in the FD33 installed in the FD driver 31d, a data analysis program or the like is stored in advance.
By mounting the FD 33 on the FD driver 31d, the data analysis program and the like are read and stored in the internal memory in the apparatus main body 31a.

When the IC memory card 2 is mounted on the RW32 and the reading operation is performed, all the data recorded in the common data recording area 2a ₁ and the digital operation data recording area 2a ₂ of the memory 2a of the IC memory card 2 are read. It is transferred to the main body 31a of the PC 31 and temporarily stored in the internal memory in the apparatus main body 31a. The data stored in the internal memory in the apparatus main body 31a is subjected to decompression processing or analysis processing according to the analysis program, or recorded in the data collection FD 34 mounted in the FD driver 31d.

When the FD34, which has already recorded the digital operation data, is installed in the FD driver 31d, the digital operation data to be analyzed stored in the FD34 is read into the internal memory in the device main body 31a and the extension analysis is performed by the analysis program of the FD33. It can be processed.

As shown in FIG. 4, the device main body 12 of the recording device 1 includes a pulse counter 12b, a CPU 12c, an internal memory 12d including a ROM and a RAM, a battery 12e, a display 12f, an input / output interface 12g, and a time and date indicating real time. The input / output interface 12g includes a clock 12h that generates date / time / minute / second data, and the input / output interface 12g includes a connector to which the IC memory card 2 is detachably connected.

When a vehicle equipped with the device body 12 configured in this way travels, the rotation sensor 11 generates a pulse signal and supplies the signal to a pulse counter 12b in the device body 12. The pulse counter 12b is a device that counts the number of input pulses, and is configured to re-count from zero when the count value reaches the upper limit. The CPU 12c is a control device that integrates all the functions of the device main body 12, and is controlled by a control program stored in the ROM in the internal memory 12d. The CPU 12c monitors the setting values of the speed sampling time and the speed tolerance stored in the RAM of the internal memory 12d, determines the cycle of the sampling timing signal based on the setting value of the speed sampling time, and determines the speed tolerance. The allowable range for speed compression is determined based on the set value. Further, the manufacturer code of the recording device 1 is incorporated as a program in (ROM) inside the CPU, and the sales office and vehicle code are set by the dip SW (or non-volatile memory).

The CPU 12c reads the value of the pulse counter 12b in accordance with the sampling timing signal, calculates the speed by calculating the number of input pulses during the sampling period by the difference from the previous value stored in the RAM in the internal memory 12d, and It is determined that the vehicle has traveled a predetermined distance with a predetermined number of pulses, and these speeds and travel distances are used as digital operation data in the IC.
Compress and record in the memory card 2. When recording the above digital operation data, if this data is the first data at the start of operation, the CPU 12c outputs the time data generated by the clock 12h at that time to the recording medium 2 via the input / output interface 12g. Record.

Also, the CPU 12c compares the initialization maker code 2a ₁₁ of the data read from the common data recording area 2a _{1 with} the maker code in the internal memory 12d to determine whether the two match, and at the same time read the option It is determined whether or not there is the start address 2a _12, and when both match and there is the option start address 2a ₁₂ , the option data created by the recording device 1 is sequentially recorded in the area designated by the option start address 2a ₁₂ . To do. In order to create the above-mentioned optional data, the CPU 12c is connected to a switch (not shown) for setting the content of work performed using a vehicle and tachometer data of the vehicle.

Also, the above initialization maker code 2a ₁₁ and internal memory 12d
As a result of comparison with the manufacturer code in the above, they do not match, and the option start address 2a read at the same time
If there is ₁₂ records a common digital operation data in a portion other than the specified area by the option starting address 2a _12. And the option start address
If 2a ₁₂ is not available, record digital operation data as usual.

By the way, the speed compression process is performed based on the following concept. That is, when an allowable error range (tolerance) for each sampling speed value is set in advance and a straight line that crosses the allowable difference is considered, the straight line represents vehicle speed information within the allowable difference. If the length of the straight line is represented by the number of samples and recorded and the value of the end point of the straight line is also recorded, the vehicle speed during the period covered by the straight line can be regularly managed. In this way, if the vehicle speed is stored only by the length of the straight line and the final data, a large amount of information can be stored with a small amount of data and data compression can be realized.

FIG. 5 shows the vehicle speed V ₀ at the time of sampling from t ₀ to t ₁₁ .
~ V ₁₁ shows the relationship, the dotted line is the vehicle speed error range. At each sampling time, it is checked whether or not there is a straight line that crosses the error range of the data before that time. t ₀ ~ t ₉
The line exists up to, but it does not exist at t ₁₀ . At this time, of the straight lines that include the starting point V ₀ and cross the error range, a straight line L ₂ that passes the upper limit and a straight line L ₁ that passes the lower limit are drawn, and the straight lines L ₁ and L ₂ of the tolerance of the final sampling data V ₉ are drawn.
The midpoint V in the range sandwiched by is the end point data, and the length is "9". The end point becomes the start point of the next dotted line, and this operation is continued in the same manner. The compression speed data recorded in the IC memory card 2 by the above compression processing is recorded in the number of samples and the speed.

Digital velocity data was recorded by the recording device 1.
The IC memory card 2 is taken out from the card insertion hole 12a and inserted into the RW32 of the analysis device 3 in order to analyze the digital speed data therein.

On the other hand, in the analysis device 3, when the FD33 is attached to the FD driver 31d and the execution of the analysis program stored therein starts, first, various data in the FD33 are read and stored in the internal memory. , Display the menu on CRT31b. This menu includes card initialization processing, termination processing, FD reading processing, and card reading processing. When the card initialization processing is selected, the common data recording area 2a _{1 of the} IC memory card 2 mounted on the RW32 is selected. Write the specified data to. That is, the number 2a of IDs in the common data recording area 2a _1
When writing "00" in hexadecimal to area ₁₃ for initialization, write initialization maker code 2a ₁₁ and record option data 2a ₂₄ in IC memory card 2, select the area to be used for that recording. Option start address to indicate
Write 2a ₁₂ . The initialized IC memory card 2 is attached to the in-vehicle recording device 1 at the time of the next vehicle operation, and accordingly, the recording device 1 first writes the data in the common data recording area 2a ₁
The data is read from the C memory card 2 and stored in a predetermined area of the internal memory 12d, and thereafter, the recording process is performed using this data.

The general operation of the recording apparatus 1 and the analyzing apparatus 3 has been described above, and the details thereof will be described below with reference to the flowcharts of FIGS. 6 and 7.

FIG. 6 is a flowchart showing the work executed by the CPU 12c of the recording apparatus 1 in accordance with the control program. The CPU 12c starts its operation when its power is turned on, initializes it in the first step S1, and sets the initial flag to "0". That is, clear. Next, in step S2, it is determined whether the IC memory card 2 is recordable. In this determination, it is determined whether the ignition (IGN) switch of the vehicle is on, or whether the IC memory card is mounted in a recordable state. When the determination in step S2 is YES, the process proceeds to step S3, in which it is determined whether the initial flag is "1", that is, whether it is set, and when the determination is NO, the process proceeds to step S4.

In step S4, the initial flag is set to "1", that is, set and then the process proceeds to step S5 to read specific data of the IC memory card 2. The data read as this specific data is the initialization maker code 2a ₁₁ , the option start address 2a ₁₂ and the number of IDs 2a ₁₃ recorded in the common data recording area 2a ₁ and the number of read IDs 2a _{13 first.}
It is with ID2a _{21 of the} last operation that can be found by.
After that, the process proceeds to step S6, where the write address is determined by the data read in step S5, particularly the ID2a ₂₁ , and then the process proceeds to step S7, where the new operation ID is written and recorded at the address determined in step S6.

After that, the process proceeds to step S8, where the pulse counter 12b
The count value is read at the cycle of the sampling timing signal, the speed and mileage are calculated based on the read count value, and the digital operation data consisting of the calculated speed and mileage is compressed and then processed. I c
Data is sequentially written and recorded in a predetermined area of the digital operation data recording area 2a _{2 in} the memory card 2.

Next, in step S9, the initialization maker code 2a ₁₁ and the internal memory 12 read in step S5 are read.
The manufacturer code stored and held in the ROM d is compared to determine whether or not they match. If the determination is NO, the process returns to step S2, and if the determination is YES, the process proceeds to step S10. In step S10, the above steps
The option data created by performing the optional processing when there is optional start address 2a ₁₂ read by the S5 is the area specified by the optional start address 2a ₁₂ and then returns the write records to the step S2.

If the initial flag is set to "1", that is, set in step S4 as described above, the determination in step S3 is YE.
After S, step S3 is skipped and steps S4 to S7 are skipped, and the process proceeds to step S8.

Further, when the determination in step S2 is NO,
That is, when the IC memory card 2 is not in the recordable state, the process proceeds to step S11, and it is determined whether or not the initial flag is "1", that is, is set. This step S1
When the determination result in 1 is NO, the process returns to step S2 and the determination result is Y.
If ES, the process proceeds to step S12. In step S12, after ending processing is performed, the process proceeds to step S13 to clear the initial flag to "0", that is, clear, and then the process returns to step S2.

On the other hand, FIG. 7 is a flow chart showing the work performed by the PC 31 of the analysis device 3, in which the device main body 31a of the PC 31 is MS-DOS.
The operation is started by the activation, the command input is waited in the first step S31a, and when the command is input, it is determined in the following step S31b whether or not the analysis program is called. If the determination is NO, proceed to another step to perform the work according to the command, and if the determination in step S31a is YES, proceed to step S31 to perform time processing,
In the subsequent step S32, the processing menu is displayed on the CRT 31b. PC31 that the operator performs by seeing this menu display
The selection operation by the ten keys or the function keys of the keyboard 31c is waited in step S33, and when selected by the operation of the specific ten keys or the function keys, the selected process is performed according to the selection operation.

When the card initialization process is selected, step S3
At 4, the predetermined data is written in the common data recording area 2a ₁ of the IC memory card 2 mounted on the RW 32. That is, ₁ is set in the area of the number 2a ₁₃ of IDs in the common data recording area 2a 1.
"00" is written in hexadecimal, and the initialization maker code 2a ₁₁ is input by key operation of the keyboard 31c,
Option data can be selected by recording option data by operating the keyboard 31c.
The 2a ₂₄ and optional start address 2a ₁₂ to instruct the area used for recording in the IC memory card 2 is written. When recording option data is not selected by operating the keys on the keyboard 31c, the area where the option start address 2a ₁₂ is written is hexadecimal "000".
"0" is written.

When the card reading process is selected, the common data, the ID data and the digital speed data are read from the IC memory card 2 in step S35, the data saving process is performed in the following step S36, and the process proceeds to step S37 Perform the creation process, and display the list in step S38.
Display on RT31b. When the FD reading process is selected, the data is read from the FDs 33 and 34 in step S39, and then the process proceeds to step S37. When the end process is selected, the work is ended after performing a predetermined work for the end in step S40.

When the list is displayed in step S38, the operator operates the keyboard of PC31 by looking at the list.
Select operation using the 31c function key in step S41
When the selected function key is selected by operating the function key, the selected process is performed accordingly.

Now, when the management table creation process is selected, step S42 is executed to create a management table in a predetermined format, and this is displayed on the screen of the CRT 31b as the display means in step S43.

When the data decompression process is selected, step S44
In step S35, data decompression processing is performed based on the data read in step S35, and the speed that changes momentarily according to the resulting data for, for example, 24 hours (1 day)
In order to display the graph on one screen of the CRT 31b, a graph conversion process is performed in step S45, the graph of the result of this process is displayed on the CRT 31b in step S46, and then the process returns to step S41.

Further, when the printing process is selected, the content displayed on the CRT 31b, for example, is printed on the print paper in step S47, and then the process returns to step S41. Also step S41
In step S4, when list creation processing is selected, step S4
In step S49, the list creation process is performed, the created list is displayed on the CRT 31b in step S49, and then step S41 is performed.
Return to Moreover, when the processing menu is selected by operating the function key, the process returns to step S32 and the above-described selection operation can be performed again.

〔effect〕

As described above, according to the present invention, in addition to digital operation data, initialization identification information for identifying who has performed initialization and an option area designated as an option area for recording option data are provided on a recording medium. The designation information is recorded, and the recording device determines whether or not to record the option data in the option region based on the initialization identification information and the option region designation information and the identification information preset in the recording device. Since it is decided, for basic digital operation data,
It can be recorded by different types of recording devices, can be analyzed by any analysis device, and does not destroy the basic digital operation data already recorded by other recording devices. The system is obtained.

Further, the option data can be recorded on a predetermined recording medium, and even if a recording medium on which the option data cannot be recorded is attached, the basic data already recorded on the recording medium can be used. A recording device capable of newly recording digital operation data without destroying the digital operation data is obtained.

Furthermore, optional data can be recorded in any area by designation, and basic digital operation data can be recorded by different types of recording devices and analyzed by any analysis device. Even if the basic digital operation data is already recorded by another recording device, the newly recorded basic digital operation data is not destroyed without destroying the already recorded data. A recording medium to be recorded is obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a digital operation data recording analysis system, a recording device and a recording medium according to the present invention, and FIG. 2 is a diagram showing an embodiment of a digital operation data recording analysis system according to the present invention, FIG. 3 is a diagram showing the contents of recording in the recording area of the IC memory card, FIG. 4 is a block diagram showing an example of the configuration of the main body of the digital operation data recording device in FIG. 2, and FIG. 5 is vehicle operation data. FIG. 6 is a flow chart showing the work performed by the CPU in FIG. 4, and FIG. 7 is a flow chart showing the work performed by the main body of the digital operation data analysis device. FIG. 8 is a block diagram showing a configuration of a conventional recording analysis system. 1 ... Recording device, 12c ₁ ... CPU (reading means), 12c ₂ ... C
PU (comparing means), 12c ₃ ...... CPU (recording means), 12c ₄ ...... C
PU (recording prohibition means), 12d ... internal memory (identification information holding means), 2 ... IC memory card (recording medium), 2a ₁ ...
… Common data recording area, 2a ₂ …… Digital operation data recording area, 3 …… Analysis device, 31a ₁ …… Device body (initializing means).

Claims (3)

[Claims] 1. A recording medium having a digital operation data recording area in which predetermined digital operation data indicating an operation state of a vehicle is recorded, and the recording medium is detachably mounted to monitor an operation state of the vehicle. A recording device for creating digital operation data by using the recording medium and recording the created digital operation data in the recording medium; and an analysis device for reading the digital operation data recorded in the recording medium and analyzing the read digital operation data. In the system for recording and analyzing digital operation data, the recording medium is initialization identification information for identifying by whom initialization is performed, and a part of the digital operation data recording area is an option other than digital operation data. Common data that records the optional area specification information that is specified as the optional area for recording data A reading unit for reading the initialization identification information and the option area designation information recorded in the common data recording area; and an identification information holding unit for holding preset identification information. A comparison unit that compares the initialization identification information read by the reading unit with the identification information held in the identification information holding unit and detects a match between the two; and a match detected by the comparison unit, and When there is the option area designating information read by the reading means, a recording means for recording the option data in the option area designated by the option area designating information and the comparing means do not detect a match, and the reading means When there is optional area specification information read by, it is specified by the optional area specification information. And a recording prohibition unit that prohibits recording of digital operation data in the option area, wherein the analysis device initializes the recording medium with the initialization identification information and the option area designation information of the recording medium. A system for recording and analyzing digital operation data, comprising an initialization means for writing in a common data recording area. 2. A recording medium having a digital operation data recording area for recording predetermined digital operation data indicating an operation state of a vehicle is detachably mounted, and the operation state of the vehicle is monitored to obtain the digital operation data. In the recording device of the digital operation data to record the created digital operation data in the recording medium, recorded in the common data recording area of the recording medium, initialization identification information for identifying by whom the initialization was performed, Read-out means for reading out a part of the digital operation data recording area as option area specifying information for specifying as option area for recording option data other than digital operation data, and identification information holding means for holding preset identification information , The initialization identification information read by the reading means and held in the identification information holding means Comparing means for comparing the two pieces of identification information with each other and detecting a match between them, and when the comparing means detects a match and the option area specifying information read by the reading means is present, the option area specifying information is used. Recording means for recording option data in the designated option area, and when the comparison means does not detect a match and there is the option area designation information read by the reading means, the option area designation information specifies the option area designation information. A recording device for digital operation data, comprising recording prohibition means for prohibiting recording of digital operation data in an optional area. 3. Initialization identification information for identifying who has performed initialization in a recording medium having a digital operation data recording area in which predetermined digital operation data indicating an operation state of a vehicle is recorded, The digital operation data recording area has a common data recording area in which a part of the digital operation data recording area and option area designating information for designating an option area for recording option data other than the digital operation data are recorded. recoding media.