JPH0221214A - Method and apparatus for recording driving of vehicle - Google Patents

Abstract

PURPOSE:To accurately determine data becoming a guideline for careful driving without increasing memory capacity by adding car speed data at every speed zone to record the added data on a memory as running distance data. CONSTITUTION:A speed zone is judged on the basis of car speed data at an instantaneous sampling cycle, which is detected by a car speed data detection means 100, by a speed zone judge means 102 and added at every speed zone by a data collection and processing means 104. This addition result is written in the memory of a data recording means 105 as running distance data at every speed zone in a freely readable state and data becoming a guideline for careful driving can be accurately determined without increasing memory capacity. Further, the running data of a speedway and that of a highway can be recorded in distinction from each other by a high speed running signal generating means 103.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method and apparatus for digitally recording driving data of a vehicle such as an automobile, and particularly to a driving record for recording mileage data in an outputtable manner. The present invention relates to a method and an apparatus thereof.

<Prior art> Conventionally, this kind of driving data is recorded using an analog method in which the rotation of the output shaft for measuring vehicle speed of the transmission is recorded mechanically interlocked via a recording needle on a disc-shaped recording paper. Tachographs are well known, but recently, with the increase in the capacity of semiconductor memory, tachographs that record driving data digitally have been proposed.

For example, the output shaft of the transmission
- A vehicle speed sensor that outputs a pulse signal proportional to the rotation speed of the output shaft is provided between the dometer cable and the vehicle speed data obtained by counting the output of this sensor at a constant sampling period and a clock means. The travel time data for each travel speed is recorded in a memory so as to be outputtable from the hour, minute, and second data of the vehicle, and the travel distance data is calculated by processing the travel distance data for each travel speed from the vehicle speed data and the travel time data, for example. - The mileage data for each day's driving is calculated, aggregated, and output.

<Problem to be solved by the invention> However, in this digital recording method, the vehicle speed data simply counted at a fixed sampling period is recorded in the memory together with the travel time data. There is a problem in that if the sampling period is shortened to obtain vehicle speed data, an enormous memory capacity is required.

Moreover, when recording driving data, it has been impossible to distinguish between driving on a general road and driving on a highway. Therefore, there is a problem in that even if the travel time data for each travel speed that is output and displayed is analyzed, the driving situation cannot be accurately grasped.

On the other hand, many of the causes of traffic fatalities that have been occurring frequently in recent years are reckless driving due to ``excessive speed.'' For safe driving managers who manage the safe driving of many vehicles using driving data, it is important to It is necessary to record driving data so that detailed safe driving guidance can be provided to prevent accidents.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to accurately collect travel distance data for driving speed without increasing memory capacity, and to provide data that serves as a guideline for safe driving guidance. The object of the present invention is to provide a recording method and a device for the recording method that can be used to understand the information.

<Means for Solving the Problems> In order to achieve the above object, the present invention collects vehicle speed data at an instantaneous sampling period, adds this data for each of a plurality of preset speed bands, and calculates the added speed. The present invention is characterized in that mileage data for each band can be outputably recorded from vehicle speed data for each band.

In addition, a means for switching between driving on ordinary roads and driving on expressways is provided, and by this switching, the vehicle speed data to be added for each speed band is divided into driving on ordinary roads and driving on expressways and added respectively. Features.

<Function> Vehicle speed data collected at every instantaneous sampling period in proportion to the vehicle's running speed is added and recorded for each of multiple speed bands and for driving on ordinary roads and driving on expressways. Through arithmetic processing, mileage data is output for each speed band, with the data divided into general road driving and expressway driving.

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

Figure 2 shows the vehicle speed (kll/h) and travel distance (kll/h).
It is a running curve diagram illustrated in relation to m).

Looking at this figure from the perspective of owning a large number of vehicles and managing safe driving, the distance traveled as driving data for preventing traffic accidents is calculated based on each traveling speed (for example, 5B, 60.65h/h).
), for example, data on how many times the vehicle ran at speeds of 60 km/h or more on general roads is more important than data on how many times the vehicle ran at speeds of 60 km/h or more when driving on general roads.

The present invention focuses on this point, and as shown in FIG. 2, the traveling speeds S+, S! ...Multiple speed bands A from S7
e, A+...A7 are set in advance, and vehicle speed data is collected and recorded for each speed band so that mileage data for each speed band Ao, A+...AA can be output.

FIG. 1 is a block diagram showing the basic configuration.

The vehicle speed data detection means 100 includes a sensor section that is inserted between the transmission and the speedometer and outputs a pulse signal proportional to the traveling speed, and a timing signal that outputs this pulse signal from the operation signal generation means 101. The speed band discriminating means 1 includes a counter unit that counts every instantaneous sampling period and outputs this value as vehicle speed data,
02 and is output to the data collection processing means 104.

The speed band determining means 102 uses the input vehicle speed data to
A plurality of preset speed bands (Fig. 2 A o,
Comparing units provided corresponding to A I . On the other hand, a signal for distinguishing between driving on a general road (hereinafter referred to as general driving) and driving on an expressway (hereinafter referred to as high speed driving) is output from the high speed driving signal generating means 103 which outputs a high speed driving signal when the driver turns on the switch. The data is output to the data collection processing means 104.

The data collection processing means 104 selects the adding units provided in the same number as the plurality of speed bands and divided into general driving and high-speed driving according to the discrimination signal and high-speed driving signal, and adds the corresponding sum. The unit repeatedly adds the input vehicle speed data at each sampling period. Therefore, at the end of driving, the plurality of adders add and accumulate vehicle speed data for each speed band and for general/high speed driving. The accumulated vehicle speed data is collected from a memory such as a RAM card, which is removably connected to the data collection processing means 104 via a connector (not shown), in response to an output signal from a data collection control means 106 comprising a microprocessor or the like. The data is recorded in the data recording means 105 so as to be outputtable as travel distance data by speed band and by general/high speed driving. After the above recording, each adding section of the data collection processing means 104 is re-centered by the output signal of the data collection control means 106.

Data recording means 1 where vehicle speed data is collected and recorded in this way
05 from the data collection processing means 104 and connected to an external computer processing means 107 such as a microcomputer via a connector (not shown). The vehicle speed data is read out by the external computer processing means 107 and processed, and mileage data classified by speed band and by general/high speed driving is output and displayed on a printer or CRT.

This will be explained with reference to FIG. Now, as shown in Figure 2, the multiple speed bands to be set in advance are A, ,A,
...A, l, and these bands and traveling speeds S,,S
, ...respectively the relationship with Sfi As < S
IS + ≦At<St, ...A,, ≧S,
Vehicle speed data for each sampling period.

It will be explained as follows. First, by turning on an engine key switch (not shown), driving is started.Whether the driving is normal driving or high-speed driving is judged based on the output signal of the high-speed driving signal generating means 103 (111).If the driving is not high-speed driving, the signal is proportional to the driving speed. The vehicle speed data D obtained by calculating the pulse signal at each sampling period is output from the vehicle speed data detecting means 100, and the speed band determining means 102 receives this and determines that the input vehicle speed data D1 is the band reference value S, <S, If the relationship is (112), a discrimination signal is output from the comparison section corresponding to the speed band A0, and the pig collection processing means 104 receives this and the output signal of the high speed running signal generation means 103, and the pig collection processing means 104 outputs a discrimination signal corresponding to the speed band A0. Select the running addition unit and manually add the vehicle speed data D8 to it (113), D
, if there is a relationship of Sl ≦Ds <sz (114),
It operates in the same manner as described above and inputs D to the general driving addition section of speed band A1 to add it.115),... D8 becomes S
If fi-1≦D, <S11 (116), then A
, -1 in the general running addition section (117), and D≧S,
, if there is a relationship, add it to the general driving addition section of A1 (11B)
, vehicle speed data D, are input and added. This addition operation is repeated every sampling period until the operation is completed.

At this time, during driving, the engine key switch may be turned off due to stopping or parking, etc., and the above-mentioned engine key switch is temporarily interrupted, but when the engine key switch is turned on, the above-mentioned addition operation continues until the driving on -day ends, for example. .

For example, when the operation on -day is completed and a data collection end signal is output from the data collection control means 106 (1
19) The vehicle speed data for general driving that has been repeatedly operated every sampling period and accumulated in each of the corresponding speed bands A0 to A1 is transferred to the data recording means 105 as mileage data for each speed band. , addresses are designated and recorded in a memory such as a RAM card in correspondence with the speed bands ○ to All.

During the repeated addition operation of the vehicle speed data for each sampling period, when a high-speed driving signal is output from the high-speed driving signal generating means 103 by the driver's switch-on operation, check this (111) to check the vehicle speed for each sampling period. The data D, is the speed band A0~ for high-speed running.
Please determine which of A7 applies in the same manner as above.121
to 125), and input to the high-speed running addition unit of the corresponding band for addition (122 to 127). This is repeated while the vehicle continues to travel at high speed, and the vehicle speed data D is accumulated in each adding section for high speed travel.

When the high-speed driving signal stops due to the driver's switch-off operation, it is assumed that the high-speed driving has changed to regular driving (128), and a check is made to see if the data collection has been completed (that is, the driving has ended) (119). If it continues, the operation of adding vehicle speed data for each speed band in general driving as described above is repeated, and when driving ends (119
), the vehicle speed data which are added and accumulated by classifying normal driving and high-speed driving according to the speed band are respectively recorded in the memory of the data recording means 105 as mileage data.

To further explain the above operation with reference to FIG. 2, the memory stores the mileage Do "" D corresponding to the speed band A0.
The vehicle speed data D added and accumulated corresponding to + and Da-Dq similarly corresponds to A1!D~D! , D3~D,
Vehicle speed data D added and accumulated corresponding to D, ~D,
However, the vehicle speed piggyback D3 that is added and accumulated corresponding to D5 to D6 corresponding to A7 is recorded as mileage data separately for normal driving and high-speed driving.

The vehicle speed data collected and recorded in this manner is read out by speed band and divided into general and high speed driving by command from the external computer processing means 107, and is subjected to arithmetic processing to obtain mileage data for each speed band. The results are output and displayed via a printer or CRT for general and high-speed driving.

As described above, according to the recording method of the present invention, vehicle speed data detected at every instantaneous sampling period is added and accumulated for each of a plurality of preset speed bands, and is divided into normal driving and high-speed driving. Since the accumulated vehicle speed data is recorded individually in memory, even if, for example, the driving distance of day 2 is recorded by speed band and by general/high-speed driving, the memory capacity can be saved without increasing memory capacity. It becomes possible to record efficiently.

Moreover, the multiple speed bands mentioned above can be set to the same band for safe driving management, so it is useful for safe driving managers who have and manage many vehicles, compared to a system that outputs and displays the driving time for each driving speed. This makes it possible to record more effective and accurate driving data.

FIG. 4 is a block diagram embodying FIG. 1. In the figure, 1 is a vehicle speed sensor that outputs a pulse signal proportional to the traveling speed. For example, a magnetized ring for detecting traveling speed is attached to the outer circumference of a rotating body that is interposed between the output shaft for measuring vehicle speed in the transmission and a flexible wire connected to the speedometer. By bringing a magnetic sensor such as a Hall element close to this and counting the number of magnetizations of the magnetized ring, a pulse signal proportional to the rotation speed of the output shaft (for example, 30 pulses per rotation) is generated and the running speed is increased. It is designed to detect. 2 counts at the rising edge of the input and sets the value to 8, for example.
This is a vehicle speed sensor that outputs a bit digital signal as vehicle speed data. This connects the output terminal of the vehicle speed sensor l to the input terminal CK via an AND circuit AND, and the AND circuit AND has a constant sampling period Cs (
For example, a timing signal t1 that is output at 0.2 seconds (1i131Jl') is inputted, and the pulse signal of the vehicle speed sensor 1 is counted and outputted every sampling period C. Further, this vehicle speed counter 2 is configured such that the control signal L4 of the operation signal generation circuit 3 is inputted to the input terminal CL via the NOT circuit N1, and the count value is cleared at the falling edge of the input. The operation signal generation circuit 3 generates a clock signal. +tco respectively, a timing signal generating section 3b which receives the clock signal tso and outputs the timing signal Ll, and receives the clock signal to0 and outputs the control signal 1. ．． 1. control signal generator 3 that outputs
It consists of c. To further explain each signal generation section 3a, 3b, and 3c, the clock signal generation section 3a is as follows.
The clock signal L S (++ t co
are output respectively. The timing signal generating section 3b receives the above-mentioned clock signal t. (a clock signal with the same period as the sampling period C1), one directly,
The other is connected to an AND circuit A via a multi-pipe lake MB that outputs a one-shot pulse signal at the rising edge of the input.
ND, and this AND circuit AND.

A knot circuit N2 is connected to the output terminal of the circuit, and a timing signal t1 is outputted from the output terminal of the knot circuit N2. And the multi-by-break MB mentioned above.

The pulse width C0 of the pulse signal output by the vehicle speed sensor 1 is set to be extremely narrow (C,<C,') compared to the sampling period C, (for example, 0.2 second period), and is set to be narrower (for example, 0.2 milliseconds) than the pulse width of the pulse signal when a pulse signal corresponding to a traveling speed of 200-/h is output, and the vehicle speed counter 2 receives the input pulse. It is now possible to count accurately. Further, the control signal generating section 3c connects the output end of the multi-pie flake M B + to a knot circuit N3.
is connected to the preset input terminal of a ring counter RC formed by a plurality of JK flip-flops etc.
The ring counter RC, which is preset by inputting the clock signal tco to the input terminal CP of the ring counter RC, and is preset at the rising edge of the output signal of the NOT circuit N, receives the clock signal LCO as shown in FIG. Control signals are sequentially output from the output terminals OI to 04 every time the output terminals OI to OI fall. ．． 0. Control signals ri, t, and t are output from each of the control signals. Therefore, the clock signal tco has an extremely narrow pulse width C0 that falls just before the sampling period p, )IC, of the timing signal t (at a short time), and the control signal L! +'4 is set as a clock signal with a cycle that can be output sequentially. 4a, 4b...47-
1 is a comparator that compares the vehicle speed data of the vehicle speed counter 2 with band reference values of a plurality of preset speed bands A and -A, respectively. This comparator 4
The vehicle speed data of the vehicle speed counter 2 is input to the input terminal A of a, 4b, 4, -1, and the reference signal generation circuit 5a is input to the input terminal B.

5b...5. -1 band reference value is input respectively,
When the re-input is in the A2B relationship, the output terminals A]・B, A
=8 through an OR circuit (not shown) (hereinafter output terminal A)
≧B), it is designed to send out an output signal of II HII level. The reference signal generation circuits 5a, 5b...5. -1 is a control voltage circuit (not shown) where a resistor is inserted between the constant voltage power supply Vce side and the ground to form 8-bit data consisting of "L" on the power supply resistance side and "0" on the ground resistance side, or Band reference values are set and transmitted using an 8-bit digital switch. In addition, the above-mentioned band reference values include a plurality of preset speed bands Aa, AI/AR, for example, As=less than 30h/h, A1=30km/h or more4
If it is classified as less than 0h/h, -A, -120km/h or more, the traveling speed is 30kll/h, 4
0 km/h...Set to an 8-bit digital signal corresponding to the vehicle speed data of the vehicle speed counter 2 output at 120 km/h.

Reference numeral 6 denotes a high-speed travel signal generation circuit that outputs a high-speed travel signal when the driver turns on the switch at the start of high-speed travel. This is done by inserting a switch SWI and a resistor R in series between the constant voltage voltage avcc and the circuit ground, and connecting the switch SWI to the connection point between the switch SW1 and the resistor R6.
By closing W1, an output signal of IT HI+ level is output as a high-speed running signal. 7a,
7b...7n and 8a, 8b...8n are adder circuits for general running and high speed running, which are provided in the same number as the plurality of speed bands A, . . . , A7. This is formed in the same way, and one of them will be explained with reference to FIG. 5.
), the 8-bit output signal of the vehicle speed counter 2 (
Vehicle speed data) are input manually, and the other input terminal is input (
(hereinafter referred to as input terminal B), the above comparator (for example, 4
Based on the output signal of a) and the output signal of the high-speed running signal generation circuit 6, a signal that discriminates the relevant speed band and general/high-speed running is input, and the output terminals of the AND circuits A, ~A are connected to the adder AD, The output terminals Z1 to Z of the adder AD are connected to the input terminals X l-X * of the latch circuit LA,
are connected to the input terminals Y I-Y @ of the adder AD, respectively, and the output terminal CA of the adder ADI is outputted from the output terminal C via the AND circuit A, and the AND circuit Input the control signal t to the input terminal of A,
This control signal RI is input as a latch signal to the latch circuit LA, and the adder AD has input terminals X, ~X.
.

The meat input signals Y, -Y, and Y are added, and the addition result is outputted from the output terminals 21 to Z8 to the launch circuit LA, and the latch circuit LA latches the human input signal according to the control signal and outputs it to the adder AD. , are output to input terminals Y1 to Y11 of the input terminals Y1 to Y11, and the vehicle speed data inputted at each sampling period are sequentially added, and a carry signal based on the addition result is outputted from the output #IC.

The input terminals B of the adder circuits 7a and 8a receive the output signal of the NOT circuit N4 connected to the output terminal A≧B of the comparator 4a, respectively, and the output signal of the NOT circuit N4 is connected to the input terminal B of the adder circuits 7a and 8a.
am, A N D s-, and an AND circuit A N D3 connected to the input @B of the adder circuits 7b and 8b from the output terminal A≧B of the comparator 4a.
The output terminal A≧B of the comparator 4b is connected to the other input terminal of the comparator 4b.
are connected via the NOT circuit 1'lsb, and the output signals of the AND circuit ANDsb are inputted via the AND circuits ANDab and ANDsb, respectively, to adder circuits 7c and 8c. , ...7□2 and 8M-8 (not shown) have a comparator 4 at their input ends B.
b, 4c...4. The output ends A≧B of l-□ are connected in the same manner as the adder circuits 7b and 8b described above, and the adder circuit 711-
A comparator 47 is connected to the input end B of 1 and 811-1.
-2 output terminal A≧B connected to AND circuit A N
Connect the output terminal A≧B of the comparator 4° to the other input terminal of D 3fi-1 via the knot circuit NSm-1,
The output signals of the AND circuit A N D s-+ are inputted through the AND circuits AND, □I, AND, . AND circuit A for each output terminal A≧B
ND, , , AND, A, and the output terminal of the high-speed running signal generation circuit 6 is connected to the other input terminal of the AND circuit AND, ,, AND, . . . and the NOT circuit N.
, and the AND circuit A N D's,, A
N D sb...AND2. The output terminal of the high-speed running signal generation circuit 6 is connected to the other input terminal of the adder circuits 7a, 7b...7n and 8ai1b...8n, and the adder circuits 7a, 7b, . They are input to an adder circuit and added. 9a, 9
b...9n and 10a, fob...Ion are the adder circuits 7a, 7b...7n and 8a, 8b...8n
This is a counter for mileage data for general driving and high-speed driving, which are arranged in parallel. This is counter 9a, 9b
. . .9n input terminal CK.
・The output terminal C of 7n is connected to the AND circuit AND, ,, AND&
b---AND&, and connect the output terminals C of the adder circuits 8a, 8b, . . . , 8n to the input terminals CK of the counters 10a, 10b, .
D,,,AND7. ...AND? , , and the above AND circuit AND&-, ANDib...
・AND &- and AND, , AND, , --AND
, to the other input terminal of the control signal 1. Let me enter
The value counted at the rising edge of the carry signal is sent out as a 16-bit output signal, for example. 11a.

11b...lln and 12a, 12b...12n are the mileage data counters 9a, 9b, 9n and l.
These multiplexers are arranged in parallel corresponding to oa and 1ob-1On, and input data signals of the mileage data counter, respectively. And multiplexers 11a, 1lb-11n and 12a, 12b・1
The data input to each of the input terminals 2n receives a select signal from an arithmetic processing unit 15 such as a processor via a decoder 13, and is outputted to a data recording device 14 consisting of a memory for recording.

In addition, the above-mentioned mileage data counters 9a, 9b...
9n, 10a, and 10b-10n are cleared all at once by a reset signal from the Juki arithmetic processing unit 15.

Next, its operation will be explained. When the engine key switch is turned on, the control signal t4 of the operation signal generation circuit 3 is
The vehicle speed counter 2, which is cleared in response to the pulse signal generated by the vehicle speed sensor 1 in proportion to the traveling speed, is sent via the AND circuit AND to the timing signal 1. is counted every sampling period C1, and the count value is used as vehicle speed data by a comparator 4a 4
b・47-1, and adder circuit 7a7b...
・Output to 7n, 8a, 8b...8n.

A comparator 4a14 that receives the above vehicle speed data at input terminal A.
b...4. , -1 receives the band reference signals from the reference signal generation circuits 5a, 5b, . The output signal of the output terminal A≧day of the comparator 4a, for example, is inverted to the uHIt level. At this time, if the human forces of the other comparators 4b, . . . , 4n are in the relationship A<B, their output signals are at the "L" level, and the input vehicle speed data corresponds to speed band A.

Now, the switch SW1 of the high-speed running signal generation circuit 6
is off and no high-speed driving signal is output (I
T L IT level output signal), AND circuit A N
D sb, A N D ah output signal is If HI
It is reversed to I level, and it is classified as i'JI for general driving.
The above vehicle speed data is input to the adder A D + of the adder circuit 7b, and the adder AD inputs both human power data X1 to X, and Y.
, ~Y, and output the result @z , ,,,
z, to the launch circuit LA, and the launch circuit LA,
In this case, the control signal generating section 3c of the operation signal generating circuit 3 generates a clock signal after the falling edge of the timing signal t1. . When the control signal t2 output from the ring counter RC rises due to the falling edge of the output terminal 2. of the adder AD, the output terminal 2. -2.
The input from the adder AD is latched and the added vehicle speed data is output to the input terminals Y1 to Y of the adder AD in preparation for the next addition.

This addition operation is performed by the adder of the general driving addition circuit for the corresponding speed band into which the vehicle speed data is input every sampling period C1, and the heavy speed data is added and accumulated for each speed band.

The adder circuit 7b that added the vehicle speed data sends a carry signal from the output terminal C to the AND circuit AND5. The control signal t2 is outputted to the mileage data counter 9b via the control signal t2. The counter 9b receiving this counts each rising edge of the input and outputs the count value as a 16-bit output signal to the multiplexer llb.

The above-described operations are performed similarly for the other comparators, the adder circuit travel distance data counter, and the multiplexer, so the operations for each speed band will be omitted.

During the above operation, the high speed running signal generation circuit 6
When the switch SW is turned on, a high-speed driving signal is output from the circuit 6, and -II constant driving is switched to high-speed driving. From then on, vehicle speed data for each sampling period C1 is used for high-speed driving in the corresponding speed band. Addition port IW8a, 8b...
・The carry signal generated at the time of addition is added to the mileage data counters 10a, 10b, . . .
1On, and the count values are output as control signals as 16-bit output signals to multiplexers 12a, 12b, . . . , 12n, respectively. These operations are performed in the same manner as described above, so their explanation will be omitted.

Then, the vehicle speed counter 2 is cleared by the control signal R output from the control signal generating section 3c of the operation signal generating circuit 3 during the falling period (pulse width C0) of the timing signal L1, and is cleared by the control signal R output from the control signal generating section 3c of the operation signal generating circuit 3 during the falling period (pulse width C0) of the timing signal L1. , during the rising period of the timing signal L1 of the vehicle speed sensor l.
The pulse signals are counted and output as vehicle speed data.

In this way, the vehicle speed data repeatedly detected every sampling period Cs is added up and totaled for each speed band and divided into general driving and high-speed driving, as driving data on -day, for example. The vehicle speed data is sent to multiplexers 11a, 1lb-11n and 12a, 12 in correspondence with the counter value of the carry signal generated by addition.
b.12n, and these multiplexers 11a, l
lb.--11n and 12a, 12b.12n are addressed via the decoder 13 by the select signal of the arithmetic processing unit 15, and are respectively recorded in the data recording device 14 consisting of a memory such as a 1<AM card. After recording, the mileage data counters 9a, 9b, -- 9n, 10a, 1O are activated by a reset signal from the arithmetic processing unit 15.
Clear b-・10n all at once.

The recorded data is read out by an external computer processing device 16, and through arithmetic processing, is printed out or output on a CRT screen as mileage data corresponding to the vehicle speed data added and accumulated for each speed band and for each touch/high speed run. Is displayed.

According to this embodiment, the pulse width C6 (i.e., the falling period of the timing signal 1.) as the control processing period in the instantaneous sampling period C3 is set when the traveling speed is, for example, 200.
Since the pulse width is set narrower than the pulse width of the pulse signal of the vehicle speed sensor 1 output at the time of ki+/h, the pulse width of the vehicle speed counter 2
can accurately output vehicle speed data proportional to the traveling speed without causing errors.

In addition, the vehicle speed data for each sampling period C1 is added and accumulated for each preset speed band and for general driving and high-speed driving, and the accumulated vehicle speed data is added to the count value of the carry signal generated at the time of addition Since the data is recorded in the memory in correspondence with the above, the amount of data can be reduced and the data can be recorded without increasing the memory capacity.

This has the advantage that the memory can be recorded using a so-called RAM card, and the driver only needs to submit the RAM card to the safe driving manager at the end of driving, making it extremely easy to read data and collect management data. has.

In the above embodiments, it has been explained that a plurality of speed bands are uniformly set, but the invention is not limited to this. For example, only a specific speed band can be set as a narrow band and others as a wide band. It goes without saying that it may be set variably depending on the type of industry or business type.

Furthermore, although the mileage data has been described as being output and displayed as a mileage i, it may also be output and displayed as a percentage of the mileage.

Further, although the collection of vehicle speed data by speed band and by touch/high-speed running has been described using a digital circuit, it is of course possible to perform program processing using a microcomputer.

<Effects of the Invention> According to the present invention, vehicle speed data proportional to the traveling speed detected at each instantaneous sampling period is collected for each of a plurality of preset speed bands and for dividing normal driving and high-speed driving. Since the sum is added and recorded in the memory, the data can be recorded without increasing the memory capacity.

Moreover, it is possible to output and display mileage data corresponding to each vehicle speed data that has been added up, and to
It is possible to visually analyze the mileage of regular and high-speed driving, whether there is ``excessive speed'' while driving, ``road congestion'', etc. In addition, if the above-mentioned mileage data is outputted together with preset evaluation reference values through calculation processing, appropriate individual guidance on safe driving can be provided, and this method and device is suitable for safe driving managers. It is possible to meet the demands of the government to monitor the prevention of traffic fatalities.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the basic configuration of the present invention, FIG. 2 is a traveling curve diagram, FIG. 3 is a flowchart explaining the recording method, FIG. 4 is a block diagram showing an embodiment of the device, and FIG.
4 is a block diagram of the adder circuit shown in FIG. 4, and FIG. 6 is a time chart diagram of the operation signal generating circuit shown in FIG. 4. 1: Vehicle speed sensor, 2: Vehicle speed counter, 3: Operation signal generation circuit, 4a 4b.--4n:: + comparator, 6: High-speed running signal generation circuit, 7a, 7b...7n 8a, 8b...8n : addition circuit, 9a, 9b--9n, 10a, 10b-10n: mileage data counter,

Claims (4)

[Claims] (1) In a vehicle driving recording method in which a pulse signal proportional to the running speed of the vehicle is counted at every instantaneous sampling period and this value is recorded as vehicle speed data, the above vehicle speed data is recorded in a plurality of preset numbers. A vehicle driving recording method characterized in that the added vehicle speed data for each speed band is recorded in a memory so as to be outputtable as mileage data for each speed band. . (2) The vehicle driving recording method according to claim 1, wherein the vehicle speed data is added separately for driving on a general road and driving on a highway. (3) A vehicle speed sensor that outputs a pulse signal proportional to the running speed of the vehicle, a vehicle speed counter that counts this pulse signal at every instantaneous sampling period and outputs it as vehicle speed data, and this vehicle speed data is set in advance. A plurality of comparator circuits that compare and judge band reference signals of a plurality of speed bands, a number of adder circuits that add vehicle speed data for each corresponding band based on the judgment signals of the plurality of comparator circuits, and a carry signal of the plurality of adder circuits that are the same in number as the plurality of speed bands. The vehicle is characterized by being equipped with a mileage data counter with the same number of additions as the number of additions, each of which is counted and output as mileage data, so that the mileage data can be recorded in a manner that can be output for each of a plurality of speed bands. Vehicle driving record device. (4) A high-speed driving signal generation circuit in which the same number of adder circuits as the plurality of speed bands are arranged separately for driving on ordinary roads and driving on expressways, and outputs a high-speed driving signal when a switch is turned on. 4. A driving recording device for a vehicle according to claim 3, wherein the vehicle speed data is switched and added by a high speed driving signal when driving on a highway.