JP2599970B2 - Vehicle driving recording method and device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for recording driving data of a vehicle such as an automobile in a digital manner, and in particular, to a driving record for recording mileage data in an outputable manner. A method and an apparatus therefor.

<Prior Art> This type of operation data is recorded on a conventional disk-shaped recording paper by using a so-called analog system in which the rotation of a transmission speed measurement output shaft of a transmission is mechanically interlocked via a recording needle and recorded. Tachographs are well known, but recently,
With the increase in the capacity of semiconductor memories, there has been proposed a system in which operation data is recorded in a digital system.

For example, a vehicle speed sensor that outputs a pulse signal proportional to the rotation speed of the output shaft is provided between the output shaft of the transmission and the cable of the speedometer, and the output of this sensor is set at a fixed sampling period. The traveling time data for each traveling speed is recorded in the memory so that the traveling time data for each traveling speed can be output to the memory from the vehicle speed data counted in step 1 and the hour, minute, and second data from the clock means. The mileage data is calculated, and the mileage data in one day driving is calculated and summed up and output, for example.

<Problems to be Solved by the Invention> However, in this digital recording, the vehicle speed data counted at a constant sampling cycle is simply recorded in the memory together with the traveling time data. There is a problem that if the sampling period is shortened to obtain vehicle speed data, a huge memory capacity is required.

Moreover, it is impossible to discriminate between traveling on a general road and traveling on an expressway in the recording of driving data. Therefore, there is a problem that even if the output and displayed travel time data for each travel speed is analyzed, the driving situation cannot be accurately grasped.

On the other hand, many of the recent traffic fatalities
It is a violent driving due to "excessive speed", and for a safe driving manager who manages safe driving of many vehicles based on driving data, driving data that can provide detailed safe driving guidance to drivers to prevent traffic accidents Records are required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object the purpose of accurately storing data as a guideline for safe driving guidance without increasing the memory capacity of traveling distance data with respect to traveling speed during driving. Another object of the present invention is to provide a recording method and a recording method which can be grasped.

<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 the collected data to a plurality of preset speed bands, and adds the added speed. It is characterized in that the traveling distance data for each band is recorded so as to be output from the vehicle speed data for each band.

Further, a switching means for switching between ordinary road driving and highway driving is provided, and the vehicle speed data to be added for each speed band by this switching is added separately for general road driving and highway driving. Features.

<Operation> The vehicle speed data collected for each instantaneous sampling period in proportion to the traveling speed of the vehicle is added and recorded for each of a plurality of speed bands and divided into general road traveling and highway traveling. By the arithmetic processing, the traveling distance data is output for each of the speed bands by classifying the traveling between the general road and the highway.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 3 is a travel curve diagram illustrating a relationship between a travel speed (km / h) and a travel distance (km) of the vehicle in FIG.

From the standpoint of managing the safe driving by owning a large number of vehicles, the figure shows that the mileage as driving data to prevent traffic accidents depends on the driving speed (for example, 50, 60, 65 km / h). For example, data on how many kilometers the vehicle has traveled at 60 km / h or more on a general road is more important than data on whether or not the vehicle has traveled km.

The present invention focuses on this point, as shown in FIG. 2, the traveling speed S _1, S ₂ ··· S multiple speeds bands from _n A _0, A ₁ a · · · A _n set in advance, the velocity band a _0, a ₁ ··· traveling distance data per a _n is collected for recording vehicle data for each velocity band to be capable of outputting.

FIG. 1 is a block diagram showing a basic configuration. The vehicle speed data detecting means 100 is interposed between the transmission and the speedometer to output a pulse signal proportional to the traveling speed, and the pulse signal is instantaneously output by the timing signal output from the operation signal generating means 101. A counting unit that counts each sampling period and outputs this value as vehicle speed data, and converts the vehicle speed data into the speed band determining means 102 and the data collection process at every instantaneous sampling period (for example, 0.2 second period). Output to means 104.

The speed band determining means 102 converts the input vehicle speed data into
A plurality of preset speed bands (A ₀ , A ₁ ... In FIG. 2)
A comparison unit provided corresponding to A _n ) compares each with a band reference value, and outputs a determination signal to the data collection processing unit 104 from the comparison unit of the corresponding band. On the other hand, the high-speed running signal generating means 103, which outputs a high-speed running signal by the driver's switch-on operation, outputs a signal for distinguishing between ordinary road running (hereinafter referred to as general running) and highway running (hereinafter referred to as high-speed running). The data is output to the data collection processing means 104.

The data collection processing means 104 selects an addition section provided in the same number as the plurality of speed bands and separately provided for general traveling and for high-speed traveling by the discrimination signal and the high-speed traveling signal and performs the corresponding addition. The unit repeatedly adds the input vehicle speed data for each instantaneous sampling period. Therefore,
At the end of the operation, the vehicle speed data is added and accumulated for each speed band and for each of the general / high-speed running to the plurality of adding units. The accumulated vehicle speed data is stored in a memory such as a RAM card or the like which is removably connected to the data collection processing means 104 via a connector (not shown) according to an output signal of the data collection control means 106 including a microprocessor or the like. The data is recorded in the data recording means 105 so as to be output as traveling distance data for each speed band and for general / high-speed traveling. Then, after the above recording, each adding section of the data collection processing means 104 is reset by an output signal of the data collection control means 106.

Data recording means for collecting and recording vehicle speed data in this way
105 is extracted from the data collection processing means 104 and is connected to an external computer processing means 107 such as a microcomputer via a connector (not shown). The vehicle speed data is read out and processed by the external computer processing means 107, and travel distance data classified by speed band and general / high-speed travel is output and displayed by a printer or CRT.

This will be described with reference to FIG. Now, as shown in FIG. 2, a plurality of speed bands set in advance are A ₀ , A _1.
... and A _n, traveling with these bands speed S _1, S ₂ the relationship between the · · · S _n respectively _{A 0 <S 1, S 1} ≦ A 1 <S 2, and ··· A _n ≧ S _n ,
The vehicle speed data for instantaneous sampling every period described as D _s. First, when the engine key switch (not shown) is turned on, the start of traveling is determined based on the output signal of the high-speed traveling signal generating means 103 as to whether the traveling is normal traveling or high-speed traveling (111). Be fast running, vehicle speed data D _s counted to the instantaneous sampling every cycle pulse signal proportional to the running speed is outputted from the vehicle speed data detecting means 100, velocity band determination unit 102 which has received this entered speed if data D _S is the relationship between the bandwidth reference values S ₁ and D _{s <S 1} (11
2), in response to the velocity band A ₀ is output determination signal from the comparison unit, which the high-speed traveling signal generating means data acquisition unit 104 which receives the output signal of 103 is added for general traveling velocity band A ₀ part select, is summed thereto to enter the vehicle speed data D _s (113). If D _s satisfies the relationship of S ₁ ≦ D _s <S ₂ (114), the same operation is performed as described above, and D _s is input to the general travel addition unit of the speed band A ₁ and added (115). .., D _s is S
If the relation _{n-1 <D s <S} n (116), A general travel addition of _n-1 (117), also for general running of A _n if the relationship D _s ≧ S _n to the adder (118), the vehicle speed data D _s is summed with the input. This addition operation is repeatedly performed at every instantaneous sampling period until the operation is completed.

At this time, during driving, the engine key switch is turned off due to a stop or parking, etc., and may be temporarily interrupted. However, when the engine key switch is turned on, the adding operation is continued again, for example, until one day of driving is completed. .

Then, for example, when the operation of one day is finished and a signal of the end of data collection is output from the data collection control means 106 (11
9), the vehicle speed data of the general cars that are summed accumulated each operation repeatedly instantaneous sampling every cycle ever appropriate band speed band A ₀ to A _n are as traveling distance data per rate band, data recording It is transferred to means 105, respectively address corresponding to the velocity band a ₀ to a _n in the memory of the RAM card or the like is recorded is specified.

During the repetitive addition operation of the vehicle speed data for each sampling period, when a high-speed running signal is output from the high-speed running signal generating means 103 by a driver's switch-on operation, this is checked (111) and instantaneous sampling is performed. the vehicle speed data D _s for each cycle, the speed band a ₀ as high speed
Or corresponds to any of to A _n same manner as described above to determine (121-1
25), input to the high-speed running addition section in the corresponding band and add it (122 to 127). This means that during high-speed driving,
The vehicle speed data is repeatedly stored in each addition section for high-speed driving.
D _s is added and accumulated.

When the high-speed running signal is stopped by the driver's switch-off operation, it is determined that the high-speed running has been switched to the normal running (128), and it is checked whether data collection has been completed (that is, whether driving has been completed) (119). Continues, the above-described addition operation of the vehicle speed data for each speed band in the general traveling is repeated, and (11
9) The vehicle speed data obtained by adding up the normal traveling and the high-speed traveling separately for each speed band is recorded in the memory of the data recording means 105 as the traveling distance data.

If further illustrated by Figure 2 the operation, the memory, the travel distance D ₀ to D ₁ and D ₈ to D ₉ speed data D _s of the addition accumulated in correspondence to corresponding to the velocity band A ₀ is, _{Similarly, D 5 ~D 6 D 1 ~D} 2, D 3 ~D 4, D 7 ~D 8 adds the accumulated vehicle speed data D _s corresponds to is also applicable to a _n corresponding to a ₁ speed data D _s of the addition accumulated in response to the, as the travel distance data, so that each is recorded in the normal driving and high speed driving by.

The vehicle speed data collected and recorded in this manner is read out separately for each speed band and for general and high-speed driving according to a command from the external computer processing means 107, and is subjected to arithmetic processing to calculate the traveling distance data for each speed band. Output is displayed via a printer or CRT for general and high-speed driving.

As described above, according to the recording method of the present invention, the vehicle speed data detected for each instantaneous sampling period is divided into general traveling and high-speed traveling for each of a plurality of preset speed bands, and the cumulative total is calculated. Since the added and accumulated vehicle speed data is recorded in the memory, for example, even when the driving distance of the driving data of the day is recorded separately for each speed band and for general / high-speed driving, the memory capacity is not increased. Recording can be performed efficiently.

In addition, since the plurality of speed bands can be set to bands suitable for safe driving management, and vehicle speed data is detected at an instantaneous sampling period, frequent speed changes to different speed bands are performed. Can be detected, and for safe driving managers who have many vehicles to manage, more effective and more accurate recording of driving data than those that output and display the driving time for each driving speed Becomes possible.

FIG. 4 is a block diagram that embodies FIG. In FIG. 1, reference numeral 1 denotes a vehicle speed sensor that outputs a pulse signal proportional to the traveling speed. This is achieved, for example, by attaching a magnetizing ring for detecting a traveling speed to the outer periphery of a rotating body inserted and cooperating between a vehicle speed measuring output shaft in a transmission and a flexible wire connected to a speedometer. Then, a magnetic sensor for each Hall element is brought close to and the number of magnetizations of the magnetized ring is counted, thereby generating a pulse signal (for example, 30 pulses per rotation) proportional to the number of rotations of the output shaft, thereby reducing the traveling speed. It is designed to detect. 2 is counted at the rising edge of the input, and the value is, for example, 8
This is a vehicle speed counter which is output as vehicle speed data with a bit digital signal. This causes the output terminal of the vehicle speed sensor 1 to the input terminal CK, the AND circuit is connected via the AND _1, AND circuit the AND ₁ from the operating signal generating circuit 3 of the instantaneous velocity detectable constant sampling period C _s ( for example by inputting a timing signal t ₁ to be output at 0.2 second interval), and outputs by counting the pulse signal of the vehicle speed sensor 1 for each instantaneous sampling cycle C _s. Also,
The vehicle speed counter 2 to the input terminal CL, a control signal t ₄ of the operation signal generating circuit 3 is inputted via the NOT circuit N _1, it adapted to clear the count value at the falling edge of the input. The operation signal generation circuit 3 outputs a clock signal
a clock signal generator 3a that outputs t _so and t _co respectively;
A timing signal generating section 3b for outputting the timing signal t ₁ by receiving the clock signal t _so, the clock signal t _co
And a control signal generator 3c that outputs control signals t ₂ and t ₄ . The signal generators 3a, 3b, and 3c will be further described. The clock signal generator 3a is formed by a crystal oscillator, a frequency divider, and the like, and outputs the clock signals t _so and t _co based on a reference clock. It is supposed to. The timing signal generator 3b is configured to output the clock signal t
_so the one hand the (clock signal having the same period as the sampling period C _s) directly, the other via the multivibrator MB ₁ that outputs a one-shot pulse signal at the rising edge of the input,
Is inputted to the AND circuit the AND _2, connects the NOT circuit N _2, consisted this output terminal outputs a timing signal t ₁ to the output terminal of the AND circuit the AND _2. Then, the pulse width C of the pulse signal output from the multivibrator MB _1
o is set to be extremely narrow (C _o ≪C _s ) compared to the sampling period C _s (for example, 0.2 second period), and the vehicle speed sensor 1 outputs a pulse corresponding to, for example, a traveling speed of 200 km / h. The pulse width is set to be narrower than the pulse width of the pulse signal when the signal is output (for example, 0.2 milliseconds), so that the vehicle speed counter 2 can accurately count the input pulses. The control signal generating unit 3c is an output terminal of the multivibrator MB _1, the NOT circuit N ₃ via a plurality of J
Ring counter R formed by K flip-flops etc.
Connected to the preset input terminal of C _1, the ring counter RC
The _first input terminal CP is input the clock signal t _co, ring counter RC ₁ which is preset at the rising edge of the output signal of the NOT circuit N _3, as shown in FIG. 6, the clock signal t
Control signals are sequentially output from the output terminals O _{1 to} O ₄ at each falling edge of _co , and in this example, the control signals t ₂ and t ₄ are output from the output terminals O ₁ and O ₃ , respectively. It has become. Therefore, (in a very short time) the clock signal t _co in the pulse width C _o of Tatsukudaru very narrow immediately before the timing signal t ₁ sampling period C _s, the control signals
t ₂ and t ₄ are set to clock signals having a cycle that can be sequentially output. 4a, 4b... 4 _n-1 are obtained by converting the vehicle speed data of the vehicle speed counter 2 into a plurality of predetermined speed bands A _{0 to An.}
Are respectively compared with the band reference values of.
4n _-1 are input with the vehicle speed data of the vehicle speed counter 2 and the input B is input with the band reference value of the reference signal generating circuits 5a, 5b... _5n-1. Input
When both inputs have a relationship of A ≧ B, the output terminals A> B, A = B
Through an OR circuit (not shown) (hereinafter, output terminal A ≧ B
"H" level output signal. Then, the reference signal generating circuits 5a, 5b... 5
_n-1 is an 8-bit data consisting of "1" on the power supply resistance side and "0" on the ground resistance side by inserting a resistor between the constant voltage power supply Vcc side of the control voltage circuit (not shown) and the ground. , Or by using an 8-bit digital switch, a band reference value is set and transmitted. In addition, the band reference value is a plurality of speed bands set in advance.
A ₀ , A ₁ ... _An is, for example, A ₀ = less than 30 km / h, A ₁ = 30 km / h
If it is classified into more than 40km / h, ... _An = 120km / h or more, it corresponds to the vehicle speed data of the vehicle speed counter 2 which is output when the traveling speed is 30km / h, 40km / h ... 120km / h. It is set to an 8-bit digital signal. 6: When the driver switches on at the start of high-speed driving,
It is a high-speed running signal generation circuit that outputs a high-speed running signal.
This inserts the switch SW ₁ and a resistor R ₁ in series between the constant voltage source Vcc and circuit ground, the connection point between the switch SW ₁ and the resistor R ₁ by closing of the switch SW _1, "H" level The output signal is output as a high-speed running signal. 7a, 7b ··· 7n and 8a, 8b ··· 8n are additive circuit of the plurality of velocity band A _0, A ₁ ··· A _n for normal driving are equal arranged with and fast traveling. It is formed similarly, to explain one of them by FIG. 5, the AND circuit A ₁ to A ₈
An input signal (vehicle speed data) of 8 bits of the vehicle speed counter 2 is input to one of the input terminals (hereinafter referred to as input terminal A), and the other input terminal (hereinafter referred to as input terminal B) is input to the other of the input terminals. the output signal of the output signal and the high speed signal generating circuit 6 of the comparator (e.g. 4a), to the input signals to determine the general and high speeds appropriate velocity band and, adds the output terminal of the aND circuit a ₁ to a ₈ respectively connected to the input terminal X ₁ to X ₈ vessels AD _1, the output Z ₁ to Z ₈ in the adder AD ₁ through the latch circuit LA _1, input Y ₁ of the adder AD ₁ to Y respectively connected to _8, formed so as to output an output terminal CA of adder AD ₁ from the aND circuit a ₉ an output terminal C through said aND circuit a ₉
The input terminal is input the control signal t _2, the control signal t ₂
To the latch circuit LA ₁ as a latch signal,
The adder AD ₁ adds the two input signals of the input terminals X ₁ to X ₈ and Y ₁ to Y _8, and outputs the sum from output terminal Z ₁ to Z ₈ in the latch circuits LA _1, latch circuits LA ₁ and outputs to the input terminal Y ₁ to Y ₈ of latches by the control signal t ₂ the input signal adder AD _1, sequentially adding the vehicle speed data to be input to each sampling period, outputs a carry signal by the sum The signal is output from the terminal C.

The knot circuit N ₄ connected to the output terminal A ≧ B of the comparator 4a is connected to the input terminals B of the addition circuits 7a and 8a.
_Are input via AND circuits AND _4a and AND _5a , respectively, and the input terminals B of the adders 7b and 8b are connected to the AND circuit AN connected from the output terminal A ≧ B of the comparator 4a.
The other end of the input terminal of D _3b has an output terminal A ≧ B of the comparator 4b.
Is connected through a knot circuit _N5b , and the AND circuit AND
The output signal of _3b, respectively AND circuits the AND _4b, is input via the the AND _5b, adder circuit 7c and 8c, the input terminal B of ··· 7 _n-2 and 8 _n-2 (not shown), a comparator 4b, 4c ・ ・ ・ 4
The output terminal A ≧ B of _n−2 is connected in the same manner as the above-described addition circuits 7b and 8b, and the input terminal B of the addition circuits 7 _n−1 and 8 _n−1 is connected to the output terminal of the comparator 4 _n−2 . AND circuit AN connected from A ≧ B
The other end of the input terminal of D _3n-1 is the output terminal A of the comparator 4 _n-1.
≧ B is connected via a knot circuit N _5n−1 , and the output signals of the AND circuit AND _3n−1 are respectively connected to AND circuits AND _4n−1 and AND
_5n-1 through to the input, the adder circuit 7n, to the input terminal B of 8n, connect the comparator 4 _n-1 of the output terminal A ≧ B each AND gate the AND _4n, via the AND _5n, the AND Circuit A
ND _4a, the output end of the high speed signal generating circuit 6 to the other input terminal of AND _4b ··· AND _4n connected through the NOT circuit N _6, AND circuit the AND _5a, the input of AND _5b ··· AND _5n An output terminal of the high-speed running signal generation circuit 6 is connected to the other of the terminals, and an addition circuit
.. 7n and 8a, 8b... 8n are adapted to input the vehicle speed data to the corresponding addition circuit by the input signal of the input terminal B and add them. 9a, 9b ... 9n and 10a, 10b
... 10n is the above-mentioned addition circuits 7a, 7b ... 7n and 8a, 8b
-Counters for running distance data for normal running and high speed running, which are arranged side by side against 8n. This is the counter 9a, 9b
... The output terminals C of the adders 7a, 7b ... 7n are connected to the input terminals CK of 9n via AND circuits AND _6a , AND _6b ... AND _6n , respectively, and the counters 10a, 10b ... 10n input terminal CK
To, the addition circuit 8a, 8b · · · 8n output terminal C of the AND circuit the AND _7a, each connected via AND _7b ··· AND _7n, the AND circuit AND _6a, AND _6b ··· AND _6n and AND _7a , AND _7b
... and to the other input terminal of the AND _7n is input the control signal t _2, the value, for example 16 counted by the rise of the carry signal
It is transmitted as a bit output signal. 11a, 11
b ... 11n and 12a, 12b ... 12n are arranged side by side in correspondence with the traveling distance data counters 9a, 9b ... 9n and 10a, 10b ... 10n. Are input to the respective data signals. Then, the multiplexers 11a, 11b... 11n and
The data input to 12a, 12b,... 12n are used to decode the select signal of the arithmetic processing unit 15 comprising a processor or the like.
The data is output to a data recording device 14 composed of a memory via a memory 13 and recorded.

Also, the traveling distance data counters 9a, 9b,.
, 10a, 10b,..., 10n are collectively cleared by the reset signal of the arithmetic processing unit 15.

Next, the operation will be described. When the engine key switch is turned on, the control signal t ₄ of the operation signal generation circuit 3 is output.
The vehicle speed counter 2, which has been cleared through the knot circuit N ₁ , outputs a pulse signal generated by the vehicle speed sensor 1 in proportion to the traveling speed via an AND circuit AND ₁ and a timing signal t _1.
It counted every sampling period C _s of the comparator 4a of the count value as the vehicle speed data, and outputs to 4b ··· 4 _n-1, adding circuit 7a, 7b · · · 7n and 8a, 8b · · ·
Output to 8n.

Comparators 4a, 4 receiving the vehicle speed data at input terminal A
b... 4 _n-1 are connected to the input terminal B at reference signal generating circuits 5a, 5b,.
Since the band reference signal is received from 5 _n-1 , both inputs are compared, and both inputs are in a relationship of A ≧ B. For example, the output signal of the output terminal A ≧ B of 4a is at “H” level. Flip to At this time, the output signal if both inputs of another comparator 4b · · · 4n is the relation of A <B In the "L" level, the vehicle speed data said input is that corresponding to the speed band A ₁ Become. And now, the high-speed running signal generation circuit 6
When the switch SW ₁ is to not output the high speed signal off ( "L" level of the output signal), the AND circuit AND
_3b, inverts the output signal is "H" level of the AND _4b, it is determined that the normal driving, the vehicle speed data is input to the adder AD ₁ of the adding circuit 7b, the adder AD ₁ both input data X _{1 ~X 8} and Y ₁
Adding to Y _8, latch circuits and the results from the output terminal Z ₁ to Z ₈
Output to LA _1, latch circuits LA _1, the control signal output by the falling of the operation signal generating circuit 3 of the control signal generating unit 3c is after the falling of the timing signal t ₁ clock signal t _co of the ring counter RC ₁ at the rise of t _2, the output terminal Z of the adder AD ₁
And latches the input from ₁ to Z _8, and outputs a vehicle speed data obtained by adding to the input terminal Y ₁ to Y ₈ adder AD _1, ready for the next addition.

This addition operation is the vehicle speed data is performed by the adder of the adder circuit for normal driving speed band corresponding input to each sampling period C _s, the vehicle speed data will be added accumulated for each speed band.

The adder circuit 7b that has added the vehicle speed data outputs the carry signal from the output terminal C via the AND circuit AND _6b to the control signal t.
₂ to output to the running distance data counter 9b. Upon receiving this, the counter 9b counts each time the input rises, and outputs the count value to the multiplexer 11b as a 16-bit output signal.

The above-described operation is similarly performed for the other comparators, the addition circuit, the mileage data counter, and the multiplexer, and therefore, the operation for each speed band is omitted.

Then, during the operation, high speed switch SW ₁ of the signal generating circuit 6 when it is turned on the circuit 6 high speed signal is output from, is switched to the high-speed traveling from the general traveling, thereafter, every sampling cycle C _s The vehicle speed data is added and accumulated in the high-speed running addition circuits 8a, 8b... 8n of the corresponding speed band, and the carry signal generated at the time of addition is counted by the running distance data counters 10a, 10b. the count value multiplexer 12a by the control signal t ₂ as a 16-bit output signal, 12b · · · 12n
Respectively. Since these operations are performed in the same manner as described above, the description is omitted.

Then, the vehicle speed counter 2 is cleared by a control signal t ₄ when output from the control signal generating section 3c of the operation signal generating circuit 3 during the falling period of the timing signal t ₁ (pulse width C _o), the next sampling counting the pulse signal of the vehicle speed sensor 1 during the rising period of the timing signal t ₁ cycle C _s, it will be output as vehicle speed data.

Thus, the vehicle speed data detected by repeated every instantaneous sampling period C _s as operating data, for example a day, every speed zone, and are added by dividing the normal driving and the high-speed running total, this .. 11n and 12a, 12b,... Corresponding to the count value of the carry signal generated by the addition.
・ Input to 12n, this multiplexer 11a, 11b ... 11
n and 12a, 12b... 12n are addressed through the decoder 13 by the select signal of the arithmetic processing unit 15, and RA
.. 9n and 10a, 1 for traveling distance data counters 9a, 9b,.
0b ... 10n are cleared all at once.

The recorded data is read out by the external computer processing device 16 and is printed out or displayed on the CRT screen as mileage data corresponding to the vehicle speed data added and accumulated for each speed band and for each of general and high-speed driving by arithmetic processing. Is done.

According to this embodiment, the pulse width of the control processing period in instantaneous sampling cycle C _s C _o (i.e., the falling period of the timing signal t ₁₎ the vehicle speed sensor 1 is running speed of outputting at for example 200 km / h Is set to be narrower than the pulse width of the pulse signal, the vehicle speed counter 2 can accurately output vehicle speed data proportional to the traveling speed without causing an error.

Further, the vehicle speed data of instantaneous sampling every period C _s in each speed range set in advance, and are added by dividing the normal driving and the high-speed running total, the sum total vehicle speed data, produced during the addition carry Since recording is performed in the memory in correspondence with the count value of the signal, recording can be performed without reducing the data amount and increasing the memory capacity.

This means that the memory can be recorded by a so-called RAM card, and the driver only has to submit the RAM card to the safe driving manager at the end of driving, which makes it extremely easy to read data and collect management data. Having.

In the above embodiment, a plurality of speed bands are described as being set uniformly.However, the present invention is not limited to this.For example, by narrowing only a specific speed band and widening the others, Needless to say, it can be variably set according to the type of business and business type.

In addition, although the mileage data is described as being output and displayed in the mileage km, the mileage data may be output and displayed as a percentage of the mileage.

Further, the collection of vehicle speed data for each speed band and for general / high-speed running has been described using a digital circuit. However, it is needless to say that a microcomputer can be used to perform program processing.

<Effect of the Invention> According to the present invention, the vehicle speed data proportional to the traveling speed detected for each instantaneous sampling period is divided into a plurality of preset speed bands, and a general traveling and a high-speed traveling are classified. Since the addition and accumulation are recorded in the memory, the recording can be performed without increasing the memory capacity.

Moreover, since the vehicle speed data is detected at an instantaneous sampling period, frequent speed changes to different speed bands can be recorded. This is a sudden start,
It is possible to grasp driving conditions such as sudden acceleration and sudden braking, and for those who are in a position to manage safe driving of many vehicles, a great advantage that it is possible to detect data important for individual guidance. Become. In addition, it is possible to output and display the mileage data corresponding to each of the accumulated vehicle speed data. It can be analyzed at a glance such as "road congestion". Further, since the vehicle speed data is detected at an instantaneous sampling period, a steep speed change such as a sudden acceleration or a sudden braking can be detected and recorded. Further, in a driving record of a vehicle running on a predetermined course, such as a vehicle running on a regular route, a driving standard for safe driving can be determined by collecting a plurality of data. If the evaluation reference value set in advance to the mileage data based on the criterion is output and displayed together with the arithmetic processing, it is possible to provide appropriate individual guidance on safe driving, a method suitable for a safe driving manager. And equipment can be provided to meet the demands of the government advocating the prevention of traffic fatal accidents.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the basic configuration of the present invention, FIG. 2 is a running curve diagram, FIG. 3 is a flowchart diagram for explaining a recording method, FIG. 4 is a block diagram showing an embodiment of the present apparatus, FIG.
4 is a block diagram of the adder circuit of FIG. 4, and FIG. 6 is a time chart of the operation signal generating circuit of FIG. 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: Counter for traveling distance data, 14: Data recording device, 15: Arithmetic processing device,

Claims (2)

(57) [Claims] In a vehicle operation recording method wherein a pulse signal proportional to the running speed of a vehicle is counted at each instantaneous sampling period and this value is recorded as vehicle speed data, the vehicle speed data is set in advance. For each of the plurality of speed bands, and divided into general road driving and highway driving, and added, the added vehicle speed data,
A vehicle operation recording method characterized in that the vehicle operation recording method is characterized in that it is recorded in a memory for each speed band and can be output as traveling distance data divided into general road traveling and highway traveling. 2. A vehicle speed sensor for outputting a pulse signal proportional to the running speed of the vehicle, a vehicle speed count for counting the pulse signal at every instantaneous sampling period and outputting the same as vehicle speed data, A plurality of comparison circuits that compare and determine with the band reference signals of the set plurality of speed bands, and the same number as the plurality of speed bands to add vehicle speed data for each corresponding band by the determination signal,
And an adder circuit arranged separately for general road travel and expressway travel, and the same number of travel distance data counts as the above adder circuit which counts the carry signal of each and outputs it as travel distance data. And a high-speed running signal generating circuit configured to output a high-speed running signal when the switch is turned on, so that the vehicle speed data is switched and added by the high-speed running signal when driving on a highway. Vehicle driving recorder.