JPH0991478A - Data recorder and data recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve recording efficiency in the case of copying and preserving digital data collected and recorded by an on-vehicle device on the side of an analysis device. SOLUTION: A read means 5 reads the data of a recording area in a first recording medium 2 and outputs them to a recording means and the recording means 6 records the data recorded in the recording areas 1B and 1C excluding a non-recording area 1A where the data are not recorded yet among the inputted data recorded in the recording area 1 in a second recording medium 3. Thus, only the data other than the ones of the non-recording area are recorded in the second recording medium and the recording efficiency of the second recording medium is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording device and a data recording method, and in particular, it collects vehicle operation information including information indicating vehicle speed and vehicle operation status that change from moment to moment in the form of digital data. The present invention relates to a data recording device and a data recording method used in a vehicle operation information collection / analysis system for recording and analyzing the recorded digital data.

[0002]

2. Description of the Related Art FIG. 9 shows a schematic configuration diagram of a vehicle operation information collection / analysis system. Vehicle operation information collection and analysis system 80
Is roughly installed in the vehicle 81, monitors the speed, the operating state, etc., which change from moment to moment, converts the obtained signal into digital data and records it in the IC memory card 82 which is a non-volatile recording medium. A so-called so-called digital tachograph, a vehicle-mounted device 83, and an office or the like for managing the vehicle 81. Digital data collected and recorded by the vehicle-mounted device 83 is stored in the IC memory card 8.
2, and an analysis device 84 that analyzes vehicle operation information necessary for vehicle management.

[0003] A pulse signal having a frequency proportional to the rotation speed of the axle is input to an on-vehicle device 83 by a rotation sensor attached to a transmission 85 of the vehicle 81. The in-vehicle device 83 is mounted by sampling the input pulse signal and performing an arithmetic operation to calculate instantaneous speed data and mileage data, and also performing a predetermined data compression process on the instantaneous speed data and mileage data. It is recorded in the IC memory card 82 as digital data.

When the IC memory card 82 removed from the vehicle-mounted device 3 is attached to the analyzer 84, the analyzer 84 reads digital data from the IC memory card 82, and an external storage device 87 such as a flexible disk drive, an optical disk drive or a hard disk drive. The data is recorded to be stored in a recording medium such as a flexible disk, an optical disk, a hard disk via the, and vehicle information is analyzed based on the collected digital data to be printed out or displayed.

[0005] Further, the analyzer 84 initializes the IC memory card 82 and records various setting data. FIG.
0 shows a conceptual diagram of data recording of the IC memory card 82. The recording area of the IC memory card 82 is roughly divided into a memory card management area 90 in which various management data is recorded and a vehicle operation information recording area 91 in which vehicle speed data, operation data and the like are recorded. ing.

The vehicle operation information recording area 91 has an address A which is the lowest address of the vehicle operation information recording area 91.
The vehicle speed data area 92 in which vehicle speed data is sequentially recorded from 0 to the high address side, the unrecorded area 93 which has addresses continuous in the vehicle speed data area 92 and in which information has not yet been written, and the unrecorded area 93 And an operation data area 94 in which operation data is sequentially recorded from the highest address B0 of the vehicle operation information recording area 91 toward the lower address side.

In the above structure, the memory card management area 90 stores a manufacturer code, the number of times of operation, ID code data for specifying the IC memory card 82, and the like. The vehicle speed data area 92 stores vehicle speed data obtained by compressing the vehicle speed data measured during operation.

The operation data area 94 stores operation identification code data for identifying each operation, speed data final address, etc., from the time when the IC memory card 82 is attached to the vehicle-mounted device 83 to the time when it is removed. ing.
In this case, the vehicle speed data is recorded in the vehicle speed data area 92 from the low address side to the high address side, and the operation data is recorded in the operation data area 94 from the high address side to the low address side. Is
This is to effectively use the recording capacity. This is because the data amount of the vehicle speed data and the data amount of the operation data are indefinite, and the data having a large data amount can use a larger recording area.

[0009]

By the way, when the recording data in the conventional IC memory card 82 is stored in the recording medium via the external storage device 87 connected to the analyzing device 84, the IC memory card 82 is used. Recording was performed in a format according to the internal recording format.

More specifically, as shown in FIG. 11, a recording state conceptual diagram in the case where the recording data of the two IC memory cards 82A and 82B is stored (copied) in the flexible disk 87A via the external storage device 87. Indicates. In addition,
In FIG. 11, the memory card management area is not shown.

As shown in FIG. 11, a vehicle operation information recording area 91 in the two IC memory cards 82A and 82B.
A and 91B have unrecorded areas 93A and 93B, respectively.
Therefore, even if the recorded data of the two IC memory cards 82A and 82B are continuously stored (copied) in the flexible disk 87A, two unrecorded areas 93A ′, in the flexible disk 87A,
There is a problem that the recording efficiency is lowered due to the occurrence of 93B '.

Therefore, an object of the present invention is to provide a data recording device and a data recording method capable of improving the recording efficiency when the digital data collected and recorded by the on-vehicle device is copied and stored in the analysis device side. To provide.

[0013]

In order to solve the above-mentioned problems, according to the invention described in claim 1, as shown in the basic configuration diagram of FIG. 1, either data of speed data or operation data (in FIG. Speed data) is sequentially recorded from a low address side to a high address side of a predetermined recording area 1, and the other data (operation data in FIG. 1) is recorded from a high address side to a low address side of the recording area 1. In the data recording device 4 for reading the speed data and the operation data from the first recording medium 2 which is sequentially recorded and copying them to the second recording medium 3, the data of the recording area 1 in the first recording medium 2 is recorded. The reading unit 5 for reading and the data recorded in the recording areas 1B and 1C except the unrecorded area 1A in which the data is not yet recorded among the data recorded in the recording area 1 Recording means 6 for recording the second recording medium 3 is configured with a.

According to the invention described in claim 1, the reading means 5
Outputs the data in the recording area 1 of the first recording medium 2 to the recording means. The recording means 6 includes the recording area 1 except for the unrecorded area 1A in which the data is not yet recorded among the data recorded in the input recording area 1.
The data recorded in B and 1C are recorded in the second recording medium 3.

According to a second aspect of the invention, in the first aspect of the invention, the recording means 6 is configured to record the read speed data and operation data in a continuous recording area. According to the invention described in claim 2, claim 1 is provided.
In addition to the operation of the invention described above, the recording means 6 records the read speed data and operation data in a continuous recording area, so that the recording area can be further reduced.

According to a third aspect of the invention, in the invention of the first or second aspect, the recording end address of the speed data in the first recording medium 2 and the operation data in the first recording medium 2 are recorded. A calculation means for calculating the capacity of the unrecorded area 1A based on the recording end address,
The recording unit 6 sets the calculated capacity of the unrecorded area 1A to the second value.
The recording medium 3 is recorded together with the speed data and the operation data.

According to the invention described in claim 3, in addition to the operation of the invention described in claim 1 or 2, the calculating means includes the recording end address of the speed data in the first recording medium 2 and the The capacity of the unrecorded area 1A is calculated based on the recording end address of the operation data on the first recording medium 2 and output to the recording means.

As a result, the recording means 6 records the calculated capacity of the unrecorded area 1A on the second recording medium 3 together with the speed data and the operation data. According to a fourth aspect of the present invention, either one of speed data and operation data is sequentially recorded from a low address side to a high address side of a predetermined recording area, and the other data is the predetermined recording area. Data recording method of reading the speed data and the operation data from a first recording medium which is sequentially recorded from a high address side to a low address side and copying the speed data and the operation data to a second recording medium. In the reading step of reading the data in the predetermined recording area, and in the data recorded in the recording area excluding the unrecorded area in which the data is not yet recorded among the data recorded in the predetermined recording area. And a recording step of recording on the second recording medium.

According to the fourth aspect of the invention, in the reading step, the data in the predetermined recording area on the first recording medium is read, and in the recording step, the data still recorded among the data recorded in the predetermined recording area is read. The data recorded in the recording area excluding the unrecorded area in which is not recorded is recorded in the second recording medium.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described with reference to the drawings. FIG. 2 shows a schematic block diagram of the vehicle operation information collection / analysis system. The vehicle operation information collection / analysis system 10 is roughly classified into a non-volatile recording medium which is mounted on a vehicle and monitors the time-varying speed, the operation state, etc., and converts the obtained signals into digital data. The in-vehicle device 12 to be recorded in the memory card 11 is arranged in an office or the like for managing the vehicle 81, and the digital data collected and recorded by the in-vehicle device 12 is integrated into the IC
An analysis device 13 that reads out from the memory card 11 and analyzes vehicle operation information necessary for vehicle management is configured.

FIG. 3 shows a block diagram of the structure of the vehicle-mounted device.
The in-vehicle device 12 is roughly divided into a controller 15 that controls the entire in-vehicle device 12, a traveling pulse signal having a cycle corresponding to the vehicle speed, a brake signal generated in response to a brake depression, and an ignition (IGN) switch. When the IGN ON signal is input to the controller 1
An interface (I / F) unit 16 for performing an interface operation for inputting the data to the digital camera 5 and a digital display 17 for displaying a clock and various warnings are provided.

The controller 15 has a ROM 18 in which a control program is stored, a RAM 19 for storing various data for signal processing, a display interface (not shown), and a connector (not shown) so that the IC memory card 11 can be detachably attached. A memory card interface (memory I / F) unit 20 and an operation input unit 21 for inputting setting such as clock setting are provided.

FIG. 4 shows a block diagram of the structure of the analyzing apparatus.
The analysis device 13 includes a control unit 25 for controlling the entire analysis device, an input device 26 for inputting various data to the control unit 25, and a display device 27 for displaying various information for displaying an analysis result, an operation management table, and the like. A flexible disk drive (FD drive) 28 as an external storage device for storing various data in a flexible disk (FD) 29; and a hard disk drive 30 as an external storage device built in the control unit 25 and storing control programs and the like. And a printer 31 connected to the control unit 25 and printing out various data.
Write data to the IC memory card 11 or
And a card reader / writer (card R / W) 32 for reading data from the C memory card 11.

FIG. 5 shows a conceptual diagram of data storage in the IC memory card. The IC memory card 11 is roughly provided with a memory card management area 40 and a vehicle operation information recording area 41. The memory card management area 40 includes a final vehicle speed data address recording area 42 for recording a recording address An of final data of a vehicle speed data area 44 described later, and a final operation for recording a recording address Bm of final data of an operation data area 46 described later. It comprises a data address recording area 43 and other areas in which a maker code, the number of operations, ID code data for identifying the IC memory card 11 and the like are recorded.

The vehicle operation information recording area 41 is a vehicle speed data area 44 in which vehicle speed data is sequentially recorded from an address A0 which is the lowest address of the vehicle operation information recording area to a high address side (final vehicle speed data address = An).
And an unrecorded area 45 having a continuous address in the vehicle speed data area 44 and not yet having information written therein, and an unrecorded area 45 having a continuous address in the unrecorded area 45 and having the highest address of the vehicle operation information recording area 41. An operation data area 46 in which operation data is sequentially recorded from a certain address B0 to a lower address side (final operation data address = Bm).
And are provided.

Next, the operation of the vehicle-mounted device will be described. When the in-vehicle device 12 is loaded with the IC memory card 11, the content of the memory card management area 40 of the IC memory card 11 is read via the memory card interface unit 20 to determine whether the ID code data is written. If the ID code data is written, the period from the insertion of the IC memory card 11 to the removal thereof is defined as one operation period, and the operation data for identifying each operation period is set. Write in the operation data area 46.

During each operation period, the vehicle speed data is written in the vehicle speed data area 44. More specifically, the controller 15 processes a traveling pulse signal input according to the traveling of the vehicle to measure the traveling speed (vehicle speed) of the vehicle, compresses the measured vehicle speed raw data, and processes the vehicle speed data. Is generated and written in the vehicle speed data area 44.

Next, the operation of the analyzing apparatus will be described with reference to the operation processing flowcharts of FIGS. First, the control unit 25 activates the control program by driving the hard disk drive 30, and the processing menu screen is displayed on the display device 2 under the control of this control program.
7 (step S1) and waits for selection by the input device 26 (step S2).

When the processing to be performed is selected by the input device 26 (step S2) and the card reading is selected, the I attached to the card reader / writer is selected.
The vehicle operation information is read from the C memory card and the vehicle operation data is stored (step S4).

Here, the process of storing vehicle operation data will be described in detail with reference to FIGS. 7 and 8. In this case, the vehicle operation data is stored on the flexible disk 2
9 shall be performed. First, the control unit 25
Reads the recording address An of the final data, which is the speed data end address, from the final vehicle speed data address recording area 42 of the memory card management area 40 of the IC memory card mounted in the card reader / writer (step S
31).

Similarly, the control unit 25 reads the final data recording address Bm which is the final operation data address from the final operation data address recording area 43 of the memory card management area 40 (step S32). Subsequently, the control unit 25 obtains the unrecorded area capacity data M which is the capacity of the unrecorded area by the following equation (step S33).

M = Bm-An-1 Next, the control section 25 sequentially reads the recorded data from the memory card management area 40, the vehicle speed data area 44 and the operation data area 46 of the IC memory card 11 (step S34), and the flexible disk. The data is recorded in 29 recording areas.

More specifically, as shown in FIG. 8, the obtained unrecorded area capacity data M is stored in the flexible disk 29.
Saved in unrecorded area capacity data area 50 (copy)
Then, the record data of the memory card management area 40 is saved in the memory card management save area 51, the vehicle speed data that is the record data of the vehicle speed data area 44 is saved in the vehicle speed data save area 52, and the record data of the operation data area 46 is saved. Certain operation data is stored in the operation data storage area 53 (step S35).

As a result, there is no unrecorded area in the data stored on the flexible disk 29, and the recording capacity can be effectively used. Next, the control unit initializes the IC memory card (step S5) and shifts the processing to step S6.

When the FD reading process is selected by the selection in step S2, the operation data is read from the data flexible disk mounted in the FD drive (step S7), and the process proceeds to step S6.
When the card confirmation process is selected by the selection in step S2, the card confirmation process for confirming the IC memory card mounted in the card reader / writer (step S
8), the recorded free word (FW) changing process (step S9) and the card reusing process are performed (step S10), and the process menu screen is displayed again on the display device (step S1), and the standby state is established. Becomes

When the end processing is selected by the selection in step S2, the end processing such as saving of various data is performed (step S11), and the processing is ended. Step S5
After completion of (card initialization) or step S7 (FD reading process), the process proceeds to step S6, the contents of a preset process setting data file are read, and a list of various data is created and displayed. Display processing (step S12), operation management table creation display processing for creating and displaying operation management table (step S13), graph creation display processing for creating and displaying graph based on predetermined data (step S14), or safety management table Any one of the safety management table creation / display processing (step S15) to be created and displayed is automatically selected and processed, and the process proceeds to step S16.

Next, the control section creates a list of various data (step S17) by selecting a function key (not shown) of the input device (step S16), and creates an operation management table. Operation management table creation display processing to be displayed (step S18),
Graph creation display processing for creating and displaying a graph based on predetermined data (step S19) or safety management table creation display processing for creating and displaying a safety management table (step S2)
0), a printing process for printing out various data by the printer (step S21), or a process menu screen display (step S1) is performed, and the same process is repeated thereafter.

As described above, according to the present embodiment, when the vehicle operation information recorded in the IC memory card by the vehicle-mounted device is stored in the external recording device on the analysis device side, the recording medium (flexible disk or the like) is stored. The number of sheets and recording capacity can be reduced.

[0039]

According to the first aspect of the invention, the reading means 5 reads the data in the recording area 1 of the first recording medium 2 and outputs the data to the recording means, and the recording means 6 receives the input recording area. Recording area 1 excluding unrecorded area 1A in which data is not yet recorded among the data recorded in 1
Since the data recorded in B and 1C are recorded in the second recording medium 3, only the data other than the unrecorded area is recorded in the second recording medium, and the recording efficiency of the second recording medium is increased. Can be improved.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the recording means 6 records the read speed data and operation data in a continuous recording area. There is no unrecorded area between the recording areas of mutually related speed data and operation data,
The recording area can be further reduced.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the calculating means includes the recording end address and the recording end address of the speed data in the first recording medium 2. The capacity of the unrecorded area 1A is calculated based on the recording end address of the operation data on the first recording medium 2 and output to the recording means, and the recording means 6 calculates the capacity of the unrecorded area 1A as the second value. Since it is recorded on the recording medium 3 together with the speed data and the operation data,
The data can be recorded and stored in the second recording medium in a state in which the actual recording state of the recording medium is reflected.

According to the fourth aspect of the present invention, the reading step reads the data in the predetermined recording area on the first recording medium, and the recording step still includes the data recorded in the predetermined recording area. Since the data recorded in the recording area excluding the unrecorded area in which is not recorded is recorded in the second recording medium, only the data other than the unrecorded area is recorded in the second recording medium. The recording efficiency of the second recording medium can be improved.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of the present invention.

FIG. 2 is a schematic configuration diagram of a vehicle operation information collection / analysis system.

FIG. 3 is a schematic block diagram of an in-vehicle device.

FIG. 4 is a schematic configuration block diagram of an analysis device.

FIG. 5 is a conceptual diagram of a data recording state of an IC memory card.

FIG. 6 is a flowchart of an operation process of the analyzer.

FIG. 7 is an operation processing flowchart of data storage processing.

FIG. 8 shows data storage (storage) in a flexible disk.
It is a conceptual diagram of a state.

FIG. 9 is a schematic configuration diagram of a conventional vehicle operation information collection and analysis system.

FIG. 10 is a conceptual diagram of a data storage state of a conventional IC memory card.

FIG. 11 is a diagram illustrating a conventional data storage operation.

[Explanation of symbols]

1 Recording Area 1A Unrecorded Area 1B, 1C Recording Area Excluding Unrecorded Area 2 First Recording Medium 3 Second Recording Medium 4 Data Recording Device 5 Reading Means 6 Recording Means 10 Vehicle Operation Information Collection and Analysis System 11 IC Memory Card 12 In-vehicle device 13 Analysis device 15 Controller 16 Interface (I / F) section 17 Digital display 18 ROM 19 RAM 20 Memory card interface (memory I / F)
Part 21 Operation Input Part 25 Control Part 26 Input Device 27 Display Device 28 Flexible Disk Drive (FD Drive) 29 Flexible Disk (FD) 30 Hard Disk Drive 31 Printer 32 Card Reader / Writer (Card R / W) 50 Unrecorded Area Capacity Data Area 51 memory card management storage area 52 vehicle speed data storage area 53 operation data storage area

Claims (4)

[Claims] 1. Data of either speed data or operation data is sequentially recorded from a low address side of a predetermined recording area toward a high address side, and the other data is high address of the predetermined recording area. In the data recording device, the speed data and the operation data are read from a first recording medium which is sequentially recorded from a recording medium side to a low address side, and the data is copied to a second recording medium. Reading means for reading the data in the recording area, and the second recording data recorded in the recording area excluding the unrecorded area in which the data is not yet recorded among the data recorded in the predetermined recording area. A data recording device comprising: a recording unit for recording on a medium. 2. The data recording device according to claim 1, wherein the recording means records the read speed data and operation data in a continuous recording area. 3. The data recording device according to claim 1 or 2, wherein a recording end address of the speed data in the first recording medium and a recording end address of the operation data in the first recording medium are used. A recording means for calculating the capacity of the unrecorded area based on the second recording medium, the recording means recording the calculated capacity of the unrecorded area on the second recording medium. A data recording device characterized by. 4. One of speed data and operation data is sequentially recorded from a lower address side to a higher address side of a predetermined recording area, and the other data is higher address of the predetermined recording area. In the data recording method, the speed data and the operation data are read from a first recording medium that is sequentially recorded from a recording medium side to a low address side, and the data is copied to a second recording medium. And a step of reading the data in the recording area, and the second recording of the data recorded in the recording area excluding the unrecorded area of the data recorded in the predetermined recording area. A data recording method comprising: a recording step of recording on a medium.