JP2772353B2 - Vehicle driving condition recording method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]   The present invention relates to a method and apparatus for recording the driving situation of a vehicle such as an automobile.
And equipment. [Conventional technology and its problems]   Conventionally, this type of recording method and apparatus has been used in commercial trucks.
Called a tachograph, which must be attached to the
There is something.   This links the speed of the car, eg with the axis of rotation of the car
As a change in amplitude through a converter such as the governor
This is a disk-shaped record on a disk that rotates in conjunction with the clock
Lay the paper together and attach it. Write a pen on this disc-shaped recording paper.
The speed information is recorded over time.   However, according to this, for example, one disk-shaped
If one day's driving status is recorded on the recording paper, 24
The driving situation will be recorded in one revolution in time
In one minute recording, 360 ゜ /24×60=0.25 ゜
One minute driving status is always recorded in a narrow rotation angle range
This means that the analysis of the records can be extended with a special analyzer.
Judgment must be made, and many vehicles must be managed.
It is complicated and time-consuming for the operation manager to manage,
There is a problem that it is difficult to provide appropriate guidance. Only
The above record is a so-called analog graphic display.
Therefore, this is used as statistical management data for a certain period of time (for example,
1 month) It was difficult to collect and analyze.   It is driven by vehicles, especially liquid fuels such as gasoline.
For cars, refueling data for the distance traveled
It is necessary in terms of management and economic driving, but
Could not be recorded. [Object of the invention]   The present invention has been made in view of the above points, and
The goal is to manage the operation of many vehicles
And provide operational guidance to each driver.
It is possible to perform finely and accurately
It is to provide a recording method and an apparatus therefor. [Summary of the Invention]   The present invention achieves the above object by controlling the speed of a vehicle at an instant.
Speed data and data sampled at regular fixed time intervals.
A plurality of driving modes set in advance are
Running time data for each applicable band integrated for each speed band
Travel distance obtained by integrating the speed data with the timing signal
Data, the above speed data, and the engine key switch
On-off signal and timing signal.
Running / stop time data and the above engine key switch
Parking time integrated by the on / off signal of the vehicle and the timing signal
Interval data and both the previous and current sampled speed data
Braking / acceleration data determined from data
Sudden braking / sudden acceleration data detected in comparison with sudden braking / sudden acceleration data
Data and speed data sampled sequentially.
Maximum / minimum speed data and the above engine key switch
Parking start and end detected from on / off signal and hour / minute / second data
Parking time data and the refueling signal from the refueling station.
Refueling data that integrates the amount of oil and the corresponding
Travel distance data corresponding to the detected refueling amount
It is recorded so that it can be output for each traveling date
It is. (Example of the invention)   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention
In the recording method, random access is used as a storage medium.
・ Using memory (hereinafter referred to as RAM)
(A) as shown in FIG.
And initial setting items such as travel route code, etc.
An area for recording the data of
Divide it into at least several days,
In the recording area, as shown in Fig. 10,
Record the date, hour, minute, and second of the line start, and then refuel
Data and parking time integration data
Running speed band Y₁, Y_Two... Yn (for example, Y₁= 40km / h
Less than, Y_Two= 40 to less than 50km / h, ... Yn-₁= 90-100km /
When driving in each applicable band (less than h, Yn = 100 km / h or more)
Record the accumulated data between
Every preset integration time Td (for example, 2 minutes)
Stop time, running time, running distance, sudden braking, sudden acceleration,
High and low speed data are recorded sequentially
I have. And, for example, the driving situation of the car is shown in FIG.
Assuming that the curve is a running curve, the time t₀In d
The car key switch is turned on and the car starts running
The speed is mounted on the vehicle and its speed is
The converter that converts the signal to a speed signal and outputs it increases in proportion to the rotation speed.
It is obtained by the number of pulses of the pulse signal to be reduced. This
The number of pulses at a certain fixed time interval (for example, 0.1 seconds
The speed data sampled at intervals is now indicated by point a.
If it is a running speed, the speed at point a is clear from the figure.
Like, running speed band Y₁Running speed
The band Y₁(Ie, speed S₀~ S₁Sample)
Speed data Y₁Recording area
Time t₀~ T₁, t₆~ T₇, t₈~ T₉, t₁₇~ T₁₈, t₁₉~ T₂₀, t_{twenty three}~ T
_{twenty four}Are accumulated and recorded. Other driving speed
Do belt Y_Two... Similar to Yn for speed data
Detects the band and travels to the recording area of the band.
The time is accumulated and recorded at the end of each traveling day.   In this way, the running speed is defined as
The total is recorded for each time zone and at the end of each day of travel.
Depending on the operation, one driving day extends to multiple days
Even the running time of each speed band is output for each running day unit
Can be accurately grasped the operation of the vehicle
Data that can be recorded. Moreover, regular routes
Running on the same course
The record for each speed band and at the end of each driving day is
Accurate safe driving operation management data through separate data collection
This is an effective recording method for creating a file. Especially when establishing a regular route
Is more effective.   Next, sudden braking / rapid acceleration data is recorded. This is now
The difference between the speed data sampled twice and the previous speed data
Compared, the speed data sampled last time is larger
Is determined as braking, the braking deviation Dd is determined, and vice versa.
Determines acceleration and stores the acceleration deviation Da in RAM beforehand.
Recorded rapid braking / rapid acceleration setting data Dds, Das and each
In comparison, when Dd> Dds, Da> Das, there is an emergency
Judgment of dynamic / rapid acceleration, the number of times
At each specified address in RAM for each
You.   That is, the speed sampled at a fixed instantaneous time interval
Sudden braking and sudden application using the deviation between the previous and current degree data
Speed is detected.
Use a speedometer or record brake activity
, And immediately detect changes in instantaneous running speed
And the sampling time interval is long
As a result, it is impossible to detect sudden braking and sudden acceleration during that time.
Problem can be reliably solved. Moreover,
For sudden braking and sudden acceleration, the number of integrations is recorded for each integration set time.
Recording, so that the operation management data
Grasping the degree of sudden braking and sudden acceleration as specific numerical values
can do.   For recording the maximum and minimum speed data,
Compare the previous speed data with the current speed data for each ring
By comparison, the speed data sampled this time is
If it is larger than, update it as the maximum speed,
If it is too small, update it as the minimum speed and
Maximum / minimum speed data at specified time intervals in RAM
Record at the address. Integrate the maximum and minimum speed data
By recording at each set time, the integrated set time
Of course, it is possible to judge economic driving for each
Evaluation of economic driving as a whole
The driving habits of individual hands have also become clear, and
Ensure that data that serves as a safe driving guidance index is recorded
Can be.   In addition, for recording stop time data,
The key switch is turned on and the sampled speed data is
The timing signal is integrated at every integration set time Td under the condition
Integrate and record at the specified address in RAM. example
For example, in FIG. 11, time t₇~ T₈Is stopped,
Is accumulated and recorded for each integration set time
become.   In addition, the recording of parking time data
When the key switch is turned off,
The hour, minute and second data at the time
When is turned on, the end of parking
The data is recorded in the specified address of the RAM.
For example, in FIG. 11, time t₁₈The parking start and time t
₁₉Parking time data is recorded as parking end
become. Due to the time data, the necessity
It is possible to record the data to output the sample.
Data of the driver's attendance evaluation.   Next, for refueling data recording, for example,
From a fuel supply source (so-called refueling station)
Switch on / off signal and the refueling switch on
Input the lubrication pulse signal generated by
From the refueling amount data obtained by integrating the refueling amount
(That is, at the last refueling, the refueling switch was turned on.
From when it was turned off) to before this refueling (this time refueling
When the refueling switch is turned on from off at
Travel distance data obtained by integrating the speed data at
Recorded at the specified address of RAM at the end of each line day
I do.   Thus, the running of the vehicle and the refueling situation
So that it is recorded at the end of each driving day
Is the refueling amount data and the travel distance data equivalent to the refueling amount.
Calculating fuel consumption rate (hereinafter referred to as fuel efficiency)
Can be operated on a regular route
Optimal operation for economical driving by collecting data by hand
Can record data that can be used to plan
Wear. This is a great advantage when opening a new regular route.
You.   As described above, according to the recording method of the present invention, the RAM
Various data required for operation management are accumulated according to their characteristics.
At each set time, at the end of each driving day, or
To record the speed of the vehicle
Sampling at regular time intervals (for example, every 0.1 seconds)
Do not increase the RAM capacity despite the
More efficient use of driving conditions for several days
Statistical data that can be recorded and easily analyzed
Data can be collected uniformly.   In addition, sudden braking and sudden
Acceleration data can be accurately detected and recorded,
Not only analysis at the time of the accident, but also guidance on safe driving by the operation manager
Record data that can be performed individually and appropriately.
Can be.   Data is collected at the end of each preset driving day.
Work styles span multiple days
Data for each driver, even in the case of work and shift work
Can be recorded.   In addition, the refueling data is also
Correspond to the corresponding mileage data and at the end of the travel day
The fuel consumption data is output every time
Data that can check not only power but also illegal refueling
Can be recorded.   FIG. 1 shows an embodiment of an apparatus for performing the above method.
This is shown in a block diagram, in which 1 is an automobile
Speed detecting means for detecting the speed of the vehicle, for example, the drive shaft of a vehicle
A number of holes for light detection are provided along the circumference of the disk
Light-emitting diode and phototransistor through this hole
Converts the rotation speed of the drive shaft into a pulse signal by the optical coupler
Converter 1a and this converter 1a is proportional to the rotational speed of the drive shaft.
Output pulse signal (hereinafter referred to as speed pulse) in binary
The counter 1b, which counts and outputs the code,
The count value of the counter 1b is converted into a timing signal
Is output at a fixed instantaneous time interval (for example, every 0.1 second)
Pulse signal (hereinafter referred to as timing signal) CP_TwoBy
Preset and transfer, and clear after transfer.
It consists of a shift register 1c. In other words, speed detection
Means 1 controls the speed of the vehicle by a timing signal CP._TwoEvery cycle of
And output this as speed data.
Swelling. 2 is a clock means for generating a timing signal.
Clock signal CP in seconds output from the generator 13₁By
Count the seconds, minutes, and hours, and
And a first counter 2a for outputting the
The day, month, and year are counted by the output signal
And outputs the second data via the shift register 2d.
And the timing signal CP_TwoBy
Hours, minutes, seconds, and date from shift registers 2b and 2d
Data is transferred. 3 is random
.Storage consisting of access memory (hereinafter referred to as RAM)
By means, the memory allocation is as shown in FIG. 9 and FIG.
In addition, as shown in FIG.
, Vehicle number, vehicle type code, driver code, road
Line code, mileage data equivalent to refueling amount,
Mileage data, integration setting time, sudden acceleration setting data,
Sudden braking setting data, number of recording days, number of recordings,
Data, such as data,
At least the remaining recording area is designated to be recorded
It is divided by year, month and day so that records for several days can be recorded.
FIG. 10 shows the divided recording areas for one day.
As shown in the table, the starting address is
Hour / minute / second data, refueling amount data, total parking time data and
Preset multiple running speed zones Y₁, Y_Two... Y
n (for example, Y₁= Less than 40km / h, Y_Two= Less than 40-50km / h
・ Yn = 110km / h or more)
Specify to record time-to-date data (for example, in minutes).
The remaining recording area has a preset integration setting
Every time Td (for example, 2 minutes) (Fig. 10, X₁, X_Two...)
If the time is during parking, the hour, minute and second
Data is recorded at the specified address (Fig. 10 X₁)
Running distance, running time, sudden braking, sudden
Speed, maximum / minimum speed, stop time data are specified
It is recorded in the address (Fig. 10 X_Two).
4 is for recording the date data during driving.
Whether the date matches the date recorded in the storage means 3
The magnitude comparison method is used to compare dates.
Date data read from the storage means 3
And the date data transferred from the clock means 2
If they match, the date and time via the addressing means 12
Specify the corresponding address of the day recording area,
If there is a new recording area via the addressing means 12,
A (for example, the recording area of the (n + 1) th day)
It will be specified, and this date data will be recorded there
Output. In other words, the run on that date is the second or later run
If so, the driving status is recorded in the recording area of the same date.
If the date is the first run, a new record area
The first address is specified and the date is once
Only will be recorded. 5 means that the running speed is
Travel speed zone Y divided into multiple₁, Y_Two... Yn (for example
If Y₁= Less than 40km / h, Y_Two= Less than 40-50km / h, ... Yn =
(Over 110km / h)
And add the accumulated running time data in the relevant band.
Record to the address specified via the address specifying means 12
Speed zone detecting means for outputting the output as described above. this
The speed detecting means corresponds to a plurality of traveling speed zones.
1 speed data is formed from the comparison detection circuits 5a, 5b ... 5n
The comparison detection circuits 5a, 5b... 5n have the same configuration.
Running speed zone Y₁And the corresponding comparison detection times
The road 5a will be described with reference to FIG.
・ Comparator COM₁Running speed band Y on the A side input end of₁of
Data of the upper limit (for example, 40 km / h)
Hex code) and the traveling speed zone Y₁of
Lower limit data (for example, 0 km / h) (for example, 8 bit 2
Hex code) to magnitude comparator COM_TwoB side of
Input to the input terminal₁B side input terminal
And the comparator COM_TwoOf the speed detecting means 1
From the shift register 1c, the speed data (for example, 8 bit 2
Hex code) and input the comparator COM₁Output end A>
B and comparator COM_TwoOutput terminals A> B, A = B connected
OR circuit OR₁Output terminal and the timing signal CP_TwoTo
AND circuit AND to input₁Connected to the input end of
And this AND circuit AND₁Counter CU at the output end of₁Input
Connect the end CK, this counter CU₁The count value of the third
The output signal of the traveling day switching means 6 shown in FIG.
T)₁Shift register SR₁Through
Output. And the above-mentioned travel day switching
Means 6 is a magnitude comparator COM_ThreeA side entry
The data at the end of the running day (for example, the data of 00:00:00
Data) is read out from the storage means 3 and input.
From the shift register 2b of the clock means 2,
Data and input the switching timing signal from the output terminal A = B.
T₁Is output. That is,
The comparison detection circuits 5a, 5b... 5n of the speed band detection means 5
Each speed band with input speed data set in advance
Is equal to or greater than the lower limit of and less than the upper limit
The corresponding comparison detection circuit detects
Time, and when the end of the running day is reached,
Count value as cumulative data of the running time of the corresponding band.
Each is output.   The end of the travel day of the travel day switching means 6 is stored in the memory.
Last day of travel day set at the specified address of means 3
By changing the data, it is possible to achieve the optimal end for operation management.
Wear.   7 detects sudden braking and sudden acceleration during running, and
Record to the address specified via the address specifying means 12
Braking / rapid acceleration detecting means. this is,
As shown in FIG. 4, the shift register of the speed detecting means 1
Previous sampling data of speed data output from 1c
Register SR_TwoVia Magnitude Comparé
Data COM_FourOf the comparator CO
M_FourThis sampling data is input to the B side input terminal of
, Comparator COM_FourOutput end A> B
Input each sampling data
Subtraction circuit DC for sudden braking₁To the output terminal A <B,
Input the previous and current sampling data respectively
Subtraction circuit DC for rapid acceleration_TwoConnect to and subtract above
Circuit DC₁And DC_TwoOutput of the magnitude comparator CO
M_FiveB-side input terminal and magnitude comparator COM₆of
Input to each A side input terminal,_FiveA
From the storage means 3 to the input terminal via the addressing means 12
The read out sudden braking setting data and the comparator COM₆of
Rapid acceleration setting data read from the storage means 3 at the B-side input terminal
To the comparator COM_FiveOutput end A of
<B is the integration timing signal T_TwoReset by falling
Counter CU_TwoTo the input terminal CK of
Comparator COM₆Output terminal A> B is integrated timing signal T_Two
Counter CU reset by falling edge of
_ThreeOf the counter CU_Two, CU_Three
The count value is latched and transferred every integration set time Td.
Shift register SR to send_Two, SR_ThreeTo output via
Has become. That is, the rapid braking / rapid acceleration detecting means 7
Is the previous and current sampling data of velocity data Da,
Compare Db, sampling data Da, Db is Da> Db
If there is, judge that it is at the time of braking and set the deviation (Da-Db) to sudden braking
Compared to the data, the above deviation (Da-Db)
When it is large, it is judged as sudden braking and the number of times is counted,
The count value is recorded every integration set time Td, and Da <
If there is a relationship of Db, it is determined that the vehicle is accelerating and the deviation (Db−Da) is calculated.
Compared with the rapid acceleration setting data, the above deviation (Db-Da) is set
If it is larger than the data, it is judged as rapid acceleration and the number of times is counted.
Count and record the count value every integration set time Td.
It has become so. 8 is the highest and lowest speed when driving
Level is detected, and this is used for addressing
Output to record at the specified address via stage 12
This is the maximum / minimum speed detection means. This is shown in FIG.
As you can see, the magnitude comparator COM₇B side entry
Power end and COM₈To the A-side input terminal of the
Input speed data from the register 1c,₇
A side input terminal and COM₈The above speed data is
AND circuits with the same number of bits (for example, 8 bits)
The speed data is connected to one of the input terminals of this AND circuit.
Input, and the other end of the input
Gate AND_Two, AND_ThreeOutput of shift register SR_Five, SR₆To
Through the comparator COM₇, COM₈of
Output terminal A <B is AND gate AND_Two, AND_ThreeOf the input end of
Connect to each other, and each time speed data is input
Comparator COM₇Maximum speed by comparator CO
M₈The minimum speed is compared by
Shift register SR for each Td_Five, SR₆From the best
It outputs low-speed data.
9 integrates each data of travel distance, travel time and stop time
This is calculated for each integration set time Td and for the parking time data.
Data, and assign this to the address
Output to the storage means 3 via the setting means 12
Data collection means. This is as shown in FIG.
Magnitude comparator COM₉On the A side input end of
Data of the preset integration time Td (for example, 2 minutes)
Data is read from the storage means 3 and input to the B side input terminal.
The above timing signal CP_TwoAnd the engine key switch ESW
On-off signal EP₁AND circuit AND_FourOutput signal
Counter CU that counts the number_FourInput and output
End A = B is the above counter CU_FourConnected to the reset input of
From the output terminal A = B, a pulse is generated every integration set time Td.
Signal (hereinafter referred to as integration timing signal) T_TwoOutput
You. The integrating circuit AD₁The register of the speed detecting means 1
The speed data sent from the_Two
Each time, and this is added to the integration timing signal T_TwoEvery time
Shift register SR_FiveOutput as mileage data via
Let In addition, the magnitude comparator COM_TenA
Input the above speed data to the
Input data of running speed 0km / h beforehand, and output terminal A
> B is the AND circuit AND_FourInput signal
Circuit AND_FiveConnect to the input end of this AND circuit AND_FiveOut of
Force end counter CU_FiveConnected to the input terminal CK of the
Timing signal CP_TwoThe counter CU_FiveCounted by
And output the shift register SR₆Accumulated time via
Signal T_TwoIt is output as running time data every time. Further
In addition, the comparator COM_TenOutput terminal A> B
Circuit N₁AND AND circuit through₆To the input end of
AND circuit AND₆AND circuit AND_FourOutput
Connect the end and AND circuit₆Output end of counter CU₆of
Connect to input terminal CK, engine key switch ESW is on
When the running is stopped, the timing signal CP_Two
The counter CU₆Count and shift its output
Register SR₇Via the integration timing signal T_TwoAt every stop
Output as interim data. Note that for the above travel time,
Counter CU for car hours_Five, CU₆Is the above integration timing signal
T_TwoIt is reset every time. Also, timing
Signal CP_TwoAND circuit AND₇To
Engine key switch ESW on / off signal EP₁Knot times
Road N_TwoInput via AND circuit AND₇Cow output end
CU₇Connect to the input terminal CK of the engine key switch E
When SW is off, the timing signal CP_TwoThe counter C
U₇And the output is switched as described above.
Signal T₁Each time, shift register SR₈Through the end of the running day
Output as parking time total data for each unit
The parking time counter CU₇Cut off
Exchange timing signal T₁Reset by
ing. 10 indicates the start and end time data of the parking
Output to be recorded in the storage means 3 via the setting means 12
This is parking time detection means. This is as shown in FIG.
And shift register SR₉And SR_TenIn addition, the clock means 2
Input the hour, minute, and second data from the shift register 2b.
One shot that outputs a one-shot pulse signal on the downstream
Tomulti MB₁And a one-shot pulse at the rising edge of the input
One-shot multi MB for signal output_TwoAnd the engine
Key switch ESW on / off signal EP₁And enter
One shot multi MB_TwoOutput terminal of knot circuit N_ThreeThrough
Register SR₉And SR_TenConnect to the engine key switch E
One shot multi MB by SW off₁Output pal
Register SR at the rising edge of the₉And then
The hour, minute, and second data are used as parking start time data.
Turn on the engine key switch ESW to activate the one-shot
Luchi MB_TwoRegister SR at the rising edge of the pulse signal_Ten
Latches the hour, minute and second data at the time of parking end
As data, the latched register SR₉, SR
_TenIs one shot multi MB_TwoOf the pulse signal output from
The data is transferred on the falling edge. 11 is the amount of refueling,
The data of the travel distance corresponding to this refueling amount is stored in the address
Output to record in the storage means 3 via the designation means 12
Refueling data detecting means. This is shown in FIG.
For example, at a refueling station, the amount of refueling
Output from refueling pulse generator FPC by turning on switch FSW
Refueling pulse signal FP₁Count and digital weighing
To be detachably connected to a measuring instrument
It has become. That is, the lubrication switch FSW and the lubrication
Connection terminal f to pulse generator FPC₁, F_TwoAnd times through
Road AND₈Connect this AND circuit AND₈Count output end of
TA CU₈Of the counter CU₈Shift output of
Register SR₁₁Input to this register SR₁₁The above refueling
Latched when switch FSW is turned off, switching timing signal
No. T₁Output the current data as lubrication amount data
I do. In addition, the above speed data is transmitted to the timing signal CP._TwoStanding
Integrator circuit AD that adds in the upstream_TwoOf the shift register
TA SR₁₂And SR₁₃And timing signal CP_TwoInput each time,
Register SR₁₃Is turned off by refueling switch FSW off.
And the data is switched to the switching timing signal T.₁Above
The mileage equivalent to the oil amount (hereinafter referred to as the mileage equivalent to refueling)
U) Output as data. Also, register SR₁₂Is
One-shot when the refueling switch FSW falls from ON to OFF
One-shot multi MB that outputs pulse signals_ThreeBy
Cleared and the timing signal CP_TwoLatched at the rise
Switching timing signal T₁Provides the data at that time.
It is output as mileage data after oil
You. Note that the counter CU for refueling amount₈Is one shot
Multi MB_ThreeReset by the pulse signal of
ing. 12 is an addressing means consisting of a decoder etc.
Then, the data from each of the above means is written to the storage means 3 respectively.
Specify the address location
It is designed to write data. 13 is for each of the above means
Timing signal generating means for outputting a clock pulse signal
Is formed by a crystal oscillator, frequency divider, etc.
Clock signal CP₁(For example, every 1 second) and the timing signal C
P_Two(For example, every 0.1 second)
ing. Reference numeral 14 denotes each data of the storage means 3 for external processing.
Output to computer processing unit (not shown)
It is an input / output unit for inputting data and the like.   Next, the operation will be described with reference to FIGS. 12 to 14.
You. Turn on the car engine key switch ESW (10
0), the date data is stored from the storage means 3 to start recording.
Read (101). When the key switch ESW is turned on,
Timing signal CP output from the imaging signal generating means 13
_TwoLatches the register 2d of the clock means 2 by
Transfer the date data to the date / time comparison means 4 (10
2). Upon receiving this, the date / time comparison means 4
The two date data from the clock means 2 are compared (103),
If the two data do not match, the recording means 3
Data (Fig. 9 Address N₁₃) And recording count data (No.
Fig. 9 Address N₁₄) And record the new driving status
Is calculated by the addressing means 12.
(104), one day of recorded data from this calculated address
Clear the rear address and read from the clock means 2 to the start address.
Record the embedded date data.   Next, the timing signal CP_TwoClock means 2
Register 2b, and the hour, minute, and second data at that time are latched.
Record to the address specified through the address specifying means 12.
(106).   At this time, the date read from the clock means 2 is
When the date matches the date read from the storage means 3
Will be recorded in the recording area
Read the number of recordings and calculate the next start address
(107), and the calculated address is sent from the clock means 2 to the calculated address.
The read hour, minute, and second data is recorded (106).   Next, the speed data output from the speed detecting means 1 is scanned.
Line speed zone Y₁, Y_Two... Comparing which of Yn
(108), the running time is integrated for each band,
Data is recorded at each specified address (10
9-115). This is because the comparison of the traveling speed zone detecting means 5
Output circuits 5a, 5b,.
5b ... 5n operate in the same way, so 5a will be explained
And the comparator COM₁B side input terminal and comparator COM_Two
The speed data of the speed detecting means 1 is input to the A-side input terminal of
And the speed data is₁By that A
Running speed zone Y read from the storage means 3 at the side input terminal₁of
Upper limit S₁(For example, 40km / h), and
Comparator COM_Two, The storage means 3
Running speed zone Y read from₁Lower limit S₀(For example, 0km /
h) is compared with the above speed
If the data falls into this band, the comparator COM₁Output
End A> B and COM_TwoOutput terminal A> B (or A = B)
The input signal becomes “H” level and the timing signal CP_TwoArgument with
AND circuit output by logical multiplication₁Output signal
CU₁Counts at the rising edge of the input, and this integrated value is
Switching timing signal T₁Register to latch and transfer
Star SR₁From the storage means 3 through the addressing means 12
It is output and written to the specified address.   Next, it is determined whether or not the vehicle is stopped (116).
For example, the stop time is accumulated and recorded at each accumulation set time Td.
(117). This is done by the data collection means 9
It is. That is, the engine key switch ESW is on.
The on-off signal EP₁Is at “H” level
And circuit AND_FourFrom timing signal CP_TwoSame as black
Pulse signal is AND circuit AND₆Is output to and
Circuit AND₆Is a knot circuit N at the other input end.₁Through
Comparator COM_Ten"L" level output signal of output terminal A> B
Signal is output as an “H” level output signal.
AND circuit AND₆Also timing signal CP_TwoOutputs the same signal as
I do. Counter CU receiving this₆Is a cow at the rise of the input
The stop time is counted and the stop time is accumulated.
Signal T_TwoSR that latches and transfers at the rising edge of₇Or
From the storage means 3 via the addressing means 12
Output to address and written.   At this time, if the vehicle is not stopped, the vehicle travels every integration set time Td
The time is accumulated and recorded (118). This is the data
This is performed by the collecting means 9. That is, even when driving
For example, comparator COM_TenThe output signal of output terminal A> B of
Since it is at “H” level, AND circuit AND_FiveFrom the output end of
Imming signal CP_TwoThe same output signal is sent as
Digit counter CU_FiveIs counted at the rising edge of the input when driving
The integration value is calculated by the integration timing as described above.
Signal T_TwoSR that latches and transfers at the rising edge of₆Or
The address of the storage means 3 is designated via the address designating means 12.
Is output to the specified address and written.   Next, the timing signal CP_TwoSampling at every rise
The previous sampling data of the speed data
Data and this data (119),
Speed data is detected and recorded every integration set time Td.
(120-127). This corresponds to the sudden braking / accelerated acceleration detection shown in FIG.
This is performed by the delivery means 7. That is, the comparator CO
M_FourAs a result, the previous speed data Da and the current speed data Db
However, when Da> Db, it is determined that braking is in progress.
The output signal of the output terminal A> B is inverted to “H” level,
Subtraction circuit DC₁Is the deviation of both input data (Da-D
b) is calculated and the comparator COM is output from the output terminal Da-Db._FiveOf B
The deviation data is output to the side input terminal. Comparator COM_Five
Is the sudden braking setting read from the storage means 3 at its A-side input terminal.
Compared with the data, the deviation data is larger than the sudden braking setting data.
When it is high, it is determined that the braking is sudden, and the output at the output terminal A <B
Counter CU that inverts the signal to “H” level and receives it_Two
Counts at the rising edge of the input, and the count value is
Imming signal T_TwoRegister that is latched and transferred at every rising edge of
Star SR_ThreeFrom the storage means 3 via the addressing means 12
Is output and written to the specified address. And
Above counter CU_TwoIs the integration timing signal T_Two
Is reset at every falling edge of.   At this time, the comparator COM_FourThe previous speed data
Data Da and the current speed data Db are in a relationship of Da <Db
Determines that the vehicle is accelerating, and the output signal of the output terminal A <B
The level is inverted to “H” level, and this inversion causes the subtraction circuit DC_Two
Calculates the deviation (Db-Da) between the two input data and calculates the output terminal Db-
Comparator COM from Da₆The deviation data to the A side input terminal of
Output. Comparator COM₆Is stored in the B side input terminal
Comparison with the rapid acceleration setting data read from the means 3
When the data is larger than the sudden acceleration setting data, it is sudden acceleration
And the output signal of output terminal A> B is inverted to “H” level
Counter CU that received this_ThreeIs the count at the rising edge of the input
And the count value is the integrated timing signal T_TwoRising
Register SR that is latched and transferred every time_FourFrom the address
To the designated address of the storage means 3 via the designation means 12
Output and written. And the above counter CU_ThreeCow
Value is the integration timing signal T_TwoReset at every falling edge
Is done.   Next, the timing signal CP_TwoSampling at rising edge
The previous sampling data of the speed data
Data and this time, and the maximum
High / low speed data is detected and recorded (128 ~ 13
1). This corresponds to the maximum / minimum speed detecting means 8 shown in FIG.
This is done. That is, the speed data of the speed detecting means 1
Data to comparator COM₇B input terminal and comparator CO
M₈Of the comparator COM₇A
Input terminal and comparator COM₈To the B-side input end of the previous comparison
The maximum and minimum speed data of register SR_Five, SR₆Through
Input to each₇, COM₈By both hands
Force, and if the current speed data is large,
Parator COM₇Output signal of output terminal A <B to "H" level
Inverted and received AND gate AND_TwoIs this speed
The speed data as the maximum speed data for the next comparison.
TA SR_FiveThrough the comparator COM₇To the A side input terminal
And when the speed data of this time is small,
Is the comparator COM₈The output signal of the output terminal A <B
Inverted to the level and received AND gate AND_ThreeIs now
Speed data as the minimum speed data for the next comparison,
Register SR₆Through the comparator COM₈To the B side input end of
Transfer and update, these updated maximum and minimum speed data
Is the integration timing signal T_TwoLatched at every rising edge of
Register SR to send_Five, SR₆The addressing means 12
Output to the designated address of the storage means 3 via the
Be included.   At this time, a comparator COM that compares and detects the maximum speed
₇Means that the current speed data is smaller than the previous speed data
Output signal of A <B at the output end is not inverted (“L” level).
So leave AND gate AND_TwoData sent from
Register SR_FiveThrough the comparator COM₇A side entry
The input data of the power end is not updated. Similarly, the minimum speed
Comparator COM for comparison detection₈Also, this speed data
When the output signal is larger than that of the previous
AND gate AND_ThreeData is sent from
Not issued, register SR₆Through the comparator COM₈Of B
The input data at the side input terminal is not updated.   Next, the engine key switch ESW is off
At time (100), it is determined that the vehicle is parked, and
The date is compared by the date comparison means 4 and both data are input.
If the data does not match, the number of recordings
The head address is calculated, and the calculated address is
Data, and when the above two inputs match, the
Of the start address of (recording times + 1)
(132-137).   Then, the parking start time and the calculated address are added to the calculated address.
The hour, minute and second data of the end time and the parking time for each
Cumulative data is recorded (138-141). This is shown in FIG.
And parking time detecting means 10 and data collecting means 9 shown in FIG.
Done by That is, the parking time detecting means 10
Jista SR₉, SR_TenFrom the register 2b of the clock means 2
Has been updated with the data and the engine key switch ES
On-off signal EP when W turns off₁One-shot
Tomulti MB₁Is a one-shot pulse signal at the falling edge of the input
Register SR₉Is the rising edge of the input
Latch and store the hour, minute, and second data at that time
The engine key switch ESW is on.
ON / OFF signal EP₁One shot circle
J MB_TwoGenerates a one-shot pulse signal at the rising edge of the input
Register SR_TenIs latched at the rising edge of the input
Then, the hour, minute, and second data at that time are combined with the parking end time data.
And the above one-shot multi MB_TwoFall of pulse signal
The parking start and end time data
Output to the designated address of the storage means 3 via the setting means 12
It is written by force. Cumulative parking time data at the end of each driving day
Is the counter CU of the data collection means 9₇Done by en
AND circuit AND when jin key switch ESW is off
₇Is the timing signal CP_TwoSends the same output signal as
Received counter CU₇Counts at the rising edge of the input.
The count value is the switching timing signal T₁Latch on the rising edge of
Register SR to transfer₈From the total parking time data
The address of the storage means 3 is designated via the address designation means 12.
It is output and written to the specified address.   Next, it is determined whether or not to refuel (142).
The refueling amount data and the refueling amount equivalent travel distance data are
It is detected and recorded every period (143-145). This is the eighth
This is performed by the refueling data detecting means 11 shown in the figure. Refueling
Refueling data detection, for example, if the operation is performed at a refueling station
Connection terminal f of means 11₁ON / OFF signal F of lubrication switch FSW
S₁And input terminal f_TwoAnd the lubrication amount
Refueling pulse signal FP by turning on oil switch FSW₁The count
Pulse signal generator FPC for digital measurement
Refueling pulse signal FP₁Connect to input
When the refueling switch FSW is turned on, the on / off signal FS₁And refueling
Pulse signal FP₁AND circuit AND with AND₈From above
Loose signal FP₁The same output signal is sent. Receive this
Counter CU₈Counts at the rising edge of the input,
When the refueling switch FSW changes from on to off
ON / OFF signal FS₁Regis latching on the falling edge of
TA SR₁₁And the switching timing signal T₁At the rise of
Jista SR₁₁Addressing means as lubrication amount data from
Output to the designated address of the storage means 3 via
Written. On the other hand, the integrating circuit AD_TwoIs the speed of the speed detecting means 1.
Degree data to timing signal CP_TwoEach time, the sum is added
The register SR₁₂And SR₁₃And the timing signal CP_TwoEnter every
Register SR₁₃Is the refueling switch FSW on?
When it turns off, it is latched on its falling edge and its data
Data switching timing signal T₁Running at the start of
As the distance data, as described above, the designated
Output to address and written. Also, register SR
₁₂Is output when the refueling switch FSW is turned on from off
One shot multi MB_ThreeCleared by rising edge of pulse signal
And the timing signal CP_TwoIntegration circuit AD that adds each time_TwoProduct
The calculated value is the timing signal CP_TwoLatched at the rising edge of
Timing signal T₁After refueling the data at the rise of the
The distance traveled from the vehicle to the next refueling
The data is specified in the storage means 3 as described above.
Is output to the specified address and written. These refueling data
The fuel consumption rate (refueling
(Equivalent mileage / refueling amount) can be calculated and output
It works.   The above operations are repeated by program processing
These recorded data are transmitted via the input / output means 14.
Output to an external computer (not shown) and display
If displayed, the driving situation for each vehicle will be as shown in Fig. 14, for example.
Output data and output data to external computer
If the processing unit records and collects,
It is possible to create statistical data for operation management based on
Wear. 〔The invention's effect〕   In the present invention, the recording area of the memory is set in advance.
Divided into several days and necessary for operation management in this divided area
Various data are recorded every year, month and day.
In particular, when one work spans multiple days such as long-distance transportation
In, it is possible to record the driving situation collectively
This is convenient. Moreover, at the end of the driving day,
Can be set for multiple rides
Service or shift-based work
Various data can be easily collected at the end of each driving day.
Can be output. Therefore, for example,
For vehicles running on a certain course, such as
By collecting data from a number of drivers,
Optimal operation management such as full operation, operation schedule organization, economical driving, etc.
Data can be created, which is convenient. That
The various data to be recorded are integrated based on the data.
Accumulate at regular time intervals and at the end of each driving day
Because it is recorded, the running speed is instantaneous time
Memory capacity despite sampling at intervals
Can record several days without increasing the
You.   The speed data output from the speed detection means is duplicated.
Running time for each speed band
The integrated value is used as the switching timing of the travel date switching means.
Switching (ie, at the end of each run day)
As it is made to record, the luck for each speed band
Of course, you can accurately grasp the turning situation,
The driving status can be grasped for each driving, that is, for each work.
Not only when you work, but also when
Even if, for example, driving each driver too fast
It is possible to accurately grasp the habit,
Guidance on safe driving to prevent traffic accidents due to overloading etc.
Can be performed for each driver, and traffic
Record and provide effective data for safety guidance
You.   In the recording apparatus of the present invention, the timing signal generating means
The data to be collected is based on the output signals from the gear and the travel day switching means.
According to the data, at each set integration time, and at the end of each driving day,
Since each can be recorded, instantaneous speed
Memory capacity despite the sampling of data
Of course, you can record without much
By setting the end period in advance, various recorded
Data can be output collectively at the end of the driving day
You.   This means that the same vehicle can be driven by multiple drivers.
Even if is recorded, the driving status of each driver is output.
The driver's unique driving situation.
Driving that can be performed reliably and manages many vehicles
For the administrator, it is possible to output the data of individual guidance
Can provide efficient traffic safety guidance
You.   In addition, there is a major problem in smooth operation of vehicles.
The present invention relates to sudden braking and sudden acceleration detection.
Judgment of sudden braking and sudden acceleration during running by means of delivery
The running speed is low or high
Can be detected quickly and reliably without misjudgment.
You. Moreover, the number of occurrences of sudden braking and sudden acceleration should be recorded.
For the driving manager, the analysis at the time of the accident
Of course, traffic safety guidance for drivers individually and
It can be done appropriately so that it is easy to understand.   In addition, the rapid braking / rapid acceleration detecting means is, for example,
Use special accelerometers or record brake operations
Without the need to record the sudden braking / acceleration data of the present invention.
The record is the speed data sampled this time and the previous
Compare the magnitude of
Is large, it is determined to be braking, and its amplitude deviation Dd is
In the opposite case, it is determined that the vehicle is accelerating, and the acceleration deviation Da is calculated in advance.
Braking and rapid acceleration setting data Dds and Das recorded in RAM
Compared to each other, there is a relationship of Dd> Dds, Da> Das
Is judged as sudden braking or sudden acceleration, the number of times
Write to the specified address of RAM at each set time
It is configured to record, so sudden braking as described above
・ When sudden acceleration is detected and recorded by using a special member
It is different, and sudden braking and
Rapid acceleration data can be accurately detected and recorded.
Use special members for sudden braking and sudden acceleration detection
Economical and requires no special space
This is convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram of traveling speed band detecting means of FIG. 1, and FIG. 3 is traveling day switching means of FIG. FIG. 4 is a block diagram of the rapid braking / rapid acceleration detecting means of FIG. 1, and FIG.
6 is a block diagram of the data collecting means of FIG. 1, FIG. 7 is a block diagram of the parking time detecting means of FIG. 1, and FIG. 8 is FIG. FIG. 9 and FIG. 10 are block diagrams of the refueling data detecting means of FIG.
FIG. 11 is an explanatory diagram of the memory allocation of the storage means in the figure, FIG. 11 is a running curve diagram for explaining the recording method, FIG. 12 and FIG. 13 are flowchart diagrams for explaining the operation, and FIG. 1: Speed detection means 2: Clock means 3: Storage means 4: Date comparison means 5: Travel speed band detection means 6: Travel day switching means 7: Sudden braking / sudden acceleration detection means 8: Maximum / minimum speed detection means 9: Data collection means 10: Parking time detection means 11: Refueling data detection means

Claims (1)

(57) [Claims] The speed of the vehicle is sampled at fixed instantaneous time intervals, and the travel distance, the travel time, and the stop time are calculated for each preset integration time based on the sampled speed data and the hour, minute, and second data from the clock means. In addition to detecting sudden braking / rapid acceleration and maximum / minimum speed, detecting the start and end times of parking, detecting the parking time at the end of each preset traveling day, and storing these data in the recording area in advance. The memory divided into several days is recorded so that it can be output in a divided manner for each year, month, and day, and the speed data is compared with a plurality of traveling speed bands set in advance, and the traveling for each speed band is performed. A method for recording a driving condition of a vehicle, wherein a time is detected at each end of a preset traveling day and recorded in a memory so as to be outputable. 2. Speed detecting means for outputting speed data obtained by sampling the speed of a vehicle at a fixed instantaneous time interval; clock means for counting clock signals and outputting year / month / day data and hour / minute / second data; Connected from the means,
Traveling speed band detecting means for comparing speed data with a plurality of traveling speed bands set in advance, counting a timing signal for each band, and outputting traveling time data for each band at the end of each traveling day, The traveling distance data, which is connected from the detecting means and is obtained by counting the traveling distance data obtained by integrating the speed data by the timing signal, and the AND signal of the timing signal and the on / off signal of the engine key switch when traveling, While outputting the logical product signal and the stop time data counted when the vehicle is stopped, each is output for each integration set time,
A data collection unit that outputs the logical product signal when the engine key switch is turned off and the parking time data counted at the end of each travel day is connected to the speed detection unit,
The maximum / minimum speed detection means for comparing the previous speed data with the current speed data for each sampling, and outputting the updated maximum / minimum speed data for each integration set time, and the speed detection means are connected to each other, Sudden braking and presetting the deviation between the previous speed data and this time data
A sudden braking / acceleration detecting means for comparing and detecting the sudden acceleration data and outputting the sudden braking / accelerating data at every integration set time;
Further, the rapid braking / rapid acceleration detecting means compares the previous sampling data of the speed data with the current sampling data. If the two sampling data satisfy the relationship of previous> current, it is determined that braking is being performed and a deviation (previous−current) is determined. ) Is compared with the sudden braking setting data. If the deviation (previous-current) is larger than the setting data, it is determined that the braking is sudden, the number of times is counted, the count value is recorded for each integration setting time, and If there is a relationship this time, it is determined that the vehicle is accelerating, and the deviation (this time-last time) is compared with the rapid acceleration setting data. And recording the count value for each integration set time.