JPS63297617A - Snow removing machine execution recording apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a snowplow construction recording device that is attached to a snowplow or the like and collects information on snow removal work actually performed.

C. Prior art and problems to be solved by the invention] Conventionally, in order to collect information indicating the status of snow removal work by a snowplow, a record of a tachograph attached to a snowplow, etc., and a record created by the snowplow driver have been collected. The actual time of snow removal work (actual working hours) was checked by comparing it with the daily vehicle driving report.

With a tachograph, the distance traveled, engine speed, and speed are mechanically recorded on a sheet of recording paper, and the actual working time is determined mainly based on the state of the travel speed, but there are times when the actual working time is determined based on the state of the travel speed. Therefore, it is difficult to accurately determine the working status. In addition, since the tachograph recording paper has very fine analog records within a narrow recording width, it is difficult to read the records and it is easy to make mistakes, making it difficult to check and confirm the actual working time. Ta.

Therefore, the detection output of a sensor that detects whether snow removal is being performed or not, and the output of a travel sensor that generates a signal related to the travel of the snowplow to which this sensor is attached, are sent at regular intervals, for example, every minute. A recording device that captures the captured data, determines whether or not the vehicle is running based on the captured data, and writes the result of this determination to a storage medium together with data indicating the working status is disclosed in, for example, Japanese Patent Laid-Open No. 61-90289. It is proposed by the official gazette.

However, this proposed device does not collect detailed data on driving conditions based on vehicle speeds that change from moment to moment, so it is still not possible to accurately investigate and analyze work conditions.

Of course, it is also possible to collect the daily operation status of snowplows using vehicle speed data and store it in a storage medium.
If vehicle speed data for 0 hours is recorded in 1 byte at 0.5 second vehicle positions, a storage medium with a storage capacity of 72,000 bytes will be required. There are any number of such large-capacity storage media available unless a particular storage medium is selected, but it is best to have each driver carry a storage medium, put it on at the beginning of the operation, take it out at the end, and hand over the storage medium to the administrator. If it is desired to use a card, a card-shaped storage medium such as an IC card, which is convenient to carry, is preferable. However, this type of storage medium does not currently have a large capacity, and this is not possible.

Therefore, it is an object of the present invention to provide a snowplow construction recorder that can collect detailed data on the snow removal work status of a snowplow using a storage medium with a storage capacity as large or small as possible.

[Means for solving problems]

In order to solve the above problems, the snowplow construction recording device according to the present invention is as shown in the basic configuration diagram of FIG.
A state detection means A for detecting the state of the snow removal work device; a speed detection means B for detecting the speed of the snow plow to which the snow removal work device is attached; and a number input for inputting a number unique to at least the snow removal vehicle and the driver. Means C, state storage means for storing state data based on the detection output of the state detection means A, speed storage means E for storing speed data based on the speed detected by the speed detection means B, and the number input. a number storage means F for storing the number data inputted by the means C; a data compression processing means G for compressing the speed data stored in the speed storage means E by comparing it with a predetermined pattern; writing the state time-series data and the compressed speed time-series data stored in the state storage means together with the number data stored in the number storage means F to a removable removable recording medium; A writing means I is provided.

In the above configuration, the time series data of the state of the snow removal work equipment detected by the state detection means and the time series data of the snow removal vehicle are written to the removable and portable recording medium H. By analyzing the data using a processing device, it becomes possible to immediately know the detailed contents of the construction status of the snowplow. In addition, since the speed time series data is compressed by comparison with a predetermined pattern and then written to the portable recording medium H, a compact and highly portable recording medium with a small storage capacity is used. becomes possible. Further, the data regarding the numbers unique to the snowplow and the driver, input by the number input means C and stored in the number storage means F, are written to the recording medium H together with the time series data of the state and the time series data of the speed. , snowplow, and management data by driver can be easily obtained.

[Example] Hereinafter, an example of the snowplow construction recording device according to the present invention will be described based on the drawings.

FIG. 2 is a block diagram showing an embodiment of a snowplow construction recorder constructed using a microcomputer (CPU), and in the figure, 11 is the CPU. C.Pull
is a predetermined read-only memory (not shown) (
It operates according to a control program stored in a ROM (ROM) and performs many tasks such as display control, data exchange, and data processing. CPU 1 first has display section 1.
2 and a keyboard 13 are connected. The display section 12 is composed of display elements such as LCD, VFT, and LED, and displays various information such as time and messages. The keyboard 13 is used as an input means for inputting various data to be described later, and is composed of a numeric keypad, various selection keys, and the like.

The cpui i also has a real time generator circuit (RTC) 1
4. Random access memory (RAM) 15 and electrically erasable programmable read-only memory
A setting ROM 16 consisting of (E” FROM) is connected.The RTC 14 generates real time data and is always connected to the CP.
Supplied to UII. The RAM 15 temporarily stores data written by the CPU II, and the temporarily stored data can be read by the CPU 1 at any time, so that the temporarily stored data will not be lost due to power supply interruption from the main power source (in-vehicle battery). Backed up by batteries etc. The setting ROM 16 is a nonvolatile memory in which data such as the vehicle number, which will be described later, that is input by key operations on the keyboard 13 is written by the CPU II. not present.

Further, an IC card 18 as a portable recording medium is removably connected to the CPU II via an ICC card holder part 7. Furthermore, a running pulse counter 19 and an interface circuit (I/F) 20 are connected to the CPU 11. The running pulse counter 19 has an input connected to the I/F 20, counts running pulses supplied from the vehicle speed sensor 21 via the I/F 20, and supplies the count value to the CPU 1. The count value of the running pulse counter 19 is updated by CPUI at regular intervals.
1 and is reset immediately after the reading.

In addition to the vehicle speed sensor 21, a rotation sensor 22 and snow removal work state sensors 23° to 237 are connected to the input of the 1/F 20. The vehicle speed sensor 21 generates a pulse every time the snowplow travels a predetermined distance, the rotation sensor 22 detects the rotation of the snowplow engine, and the snowplow operation status sensor 23 . ~2
Reference numeral 39 includes, for example, a proximity switch provided corresponding to a snow removal device used for snow removal work, and detects whether or not the corresponding snow removal device is in use.

The data collected by the device of the present invention having the above-described configuration is snow removal work data and speed time series data. Further, the snow removal work data consists of occasional data and work time series data, and the occasional data includes the type of snow removal device, work classification, amount of fuel, driver code, etc. inputted using the keyboard 13.

When these data are input using the keyboard 13, the CPU 1 temporarily records them in the RAM 15 together with the date and time data from the RTC 14. Work time series data is
Vehicle speed sensor 21, rotation sensor 22, working state sensor 23
．． ~23. ．． The CPU 1 reads the outputs of these sensors, for example, every second, and based on the cumulative value, the CPU 1 reads the outputs of these sensors, for example, every minute. RAM1
Write in 5.

The speed time series data is the count value of the driving pulse counter 19 that counts pulses from the vehicle speed sensor 21.
The UII is obtained by reading the UII every 0.5 seconds, converting it into a speed, and sequentially records it in a predetermined area of the RAM 15.

The speed time series data temporarily collected in the RAM 15 is
When recording on the IC card 18 at a certain timing, it is sorted into several patterns. An example of this pattern will be explained below.

Basically, when a sudden speed change occurs that exceeds the previous speed data by ±1 step (speed unit, for example, 2.5 kffi/h), the speed at that point is shown in Figure 3. The data length is fixed at 8 bits. The upper two bits of the eight bits represent the data pattern flag, and the six highest bits represent the speed. Each of the lower 6 bits is weighted from 1 to 32 as shown in the figure, and is recorded so that speed data x speed unit (2.5 km/h) = speed. For example, in the case of the speed data shown in FIG. 4, (1+2) x 2.5 km/h = 7.
It represents 5 km/h.

When the same speed as the previous speed continues, the duration time is recorded as shown in Figure 5, and the data length is 8.
The bit is fixed. The upper 2 bits of the 8 bits represent the data pattern flag, and the lower 6 bits represent the time. Each of the lower 6 bits is weighted from 1 to 23 as shown, and is recorded so that time data x unit time (0.5 seconds) = duration time. For example, in the example shown in Figure 6,
It can represent (1+2+4+8)Xo, 5 seconds = 7.5 seconds or (1+2+4+8+1)XO, seconds = 8.0 seconds. Note that the latter is a case where time data 0 represents a unit time. Further, in this example, only up to 32 seconds can be represented, but a longer time can be represented by increasing the number of bits used in units of 8 bits.

Pressure jL Otsujim Compared to the previous speed, the speed was recorded as shown in Figures 7 and 8, depending on whether the speed was accelerating in the range of +1 step or decelerating in the range of -1 step. The data length is variable from 10 bits to 73 bits. The upper two bits represent the pattern flag of this data, the next one bit represents an acceleration or deceleration flag, and the following bit represents the data area and data portion. In the data area, how many bits are used as the data part is recorded, and in the data part, speed changes from +1 step to -1 step are recorded.

For example, data "0" in the data section indicates that the speed is the same as the previous time in both acceleration and deceleration trends, and data "1" indicates a speed change of +1 step for acceleration trends and 11 steps for deceleration trends. respectively.

In the data example of FIG. 8, the data area is 2+1-3, and the reason why it is incremented by +1 is because it is impossible for there to be no data, so 05 represents the number of data, 1. Data (1) represents 30kn+/h if the previous speed was 27.5kffi/h, and data (2)
represents 30 km/h, which is the same as data (1), and data (3) represents 32.5 km/h. The data after data (3) is different data, which can be seen from the value in the data area.

This is a pattern where the speed changes only within the range of +1 step to 0 step with respect to the reference value set at any point in time, and records such as those shown in Figures 9 and 10 are recorded. The data length is variable from 10 bits to 42 bits. That is, the upper 3 bits represent this pattern, and the following 1 bit represents the reference value determination flag. For example, the reference value flag "0" indicates that the same value as the immediately previous speed is used as the reference value, and "1" indicates that the reference value is the same value as the immediately previous speed.

The bits that follow are divided into a data area and a data portion representing the number of data in the data portion. For example, when the data part is "0", it represents the same speed as the reference value, and when it is "1", it represents the speed that is +1 step higher than the reference value.

In the data example in Figure 10, the number of data is 4+1-5, data (1) is the same as the reference value, for example, 30 km/h, data (2) is 32.5 km/h, and data (3) is 32.5 km/h.
m/h, data (4) is 32.5 km/h, data (5
) represents 39km/h.

When the blood pressure is changed by -1 step or -1 step with respect to the previous speed, recording is performed with a fixed length of 4 bits as shown in Fig. 11.

By compressing the velocity time series data as described above,
Speed data for one day can be recorded on the IC card 18. However, the driving patterns of snowplows vary depending on the vehicle type, driver, road conditions, etc., and when sufficient compression is not possible and the amount of data becomes large, multiple I/O
Recording on the C card 18 is required.

Therefore, when the capacity of one IC card 18 is exceeded, a message such as "memory over" is displayed on the display unit 12, and a buzzer (not shown) is sounded to warn the driver, and the IC card 18 is Encourages you to exchange it for a new one.

In this way, when recording is performed on a plurality of IC cards 18, a code indicating that recording is also performed on another IC card 18 is also recorded on the previous IC card 18.

The IC card 18 on which the predetermined recording has been performed is taken out from the IC card holder 17 and subjected to data analysis by a computer in the office.

When analyzing data, the IC card 18 is
For example, numbers indicating these must be recorded on the card 18, but these numbers are
After specifying the mode by simultaneously operating two keys, the modes are inputted separately by operating the numeric keypad and recorded in advance in the setting ROM 16. The designated mode is canceled by pressing a SET button (not shown).

Next, the overall operation will be explained with reference to the flowcharts of FIGS. 12 and 13.

When first started, initial data values are set in step S1, and it is checked in step S2 whether or not the IC card 18 is set in the IC card holder 17.

If the IC card 18 is set, it is checked in step S3 whether or not it is the first IC card, and if it is the first IC card, it is determined in step S4 that there is no manual key operation by key operation on the keyboard 13. It is checked whether or not. If there is key human power, it is read in step S5, the key human power is processed in step S6 based on the read input, and work-time data is created in step S7 based on the processing result. This work-related data is stored in RAM1 in step S8.
5 is written.

Note that if it is determined in step S3 that it is not the first IC card, the remaining data is read from the RAM 15 in step S9. Furthermore, if it is determined that there is no key manpower in the check at step S4, steps 85 to S8 are skipped.

In step 310, it is checked whether the IC card 18 has any remaining capacity.
This is done by looking at the write address to. IC
If there is a remaining capacity in the card 18, data is written to the IC card 18 in step Sll, and if there is no remaining capacity, in step S
At step 12, a warning that there is no remaining capacity in the IC card 18 is given, for example, by sounding a buzzer and displaying on the display unit 12.

By the way, if it is determined by the check and double check in step S2 that the IC card 18 has not been marked, it is checked in step S13 whether or not a number has been written. If a number has been written, the key input is read in step S14, followed by step S31.
The data read in step 5 is written into the setting ROM 16.

Then, in step 316, data is written to the IC card 18. On the other hand, if there is no number written in the check in step S13, it is checked in step S17 based on a signal from the rotation sensor 22 whether or not the engine is on. If the engine is on, a warning is given in step S18 that the IC card 18 is not set in the IC card holder 17.

Above step S11. After completion of S12, 316 or S18, or when the engine is off due to the check in step S17, the process returns to step S2, and steps 82 to 318 described above are repeatedly executed.

During the execution of each step in the flowchart in FIG. 12, when a timer interrupt is activated, if interrupts are not disabled, execution of the flowchart in FIG. ) The time counter is incremented.

In the following step 321, the count value of the running pulse counter 19 is read. Then, the mileage calculation process is performed in step S23 based on the count value read in step S22.
The speed calculation process is performed in each step. In the subsequent step S24, processing for a warning buzzer is performed.

In step S25, each sensor 22, 23 . ~23,,
It is checked whether or not the sensor is on, and if the result of the check is that the sensor is on, then in step S26 (C
The sensor time counter (in PUII) is incremented. When the sensor is not turned on as determined in step S25, or after step S26 is executed, the process proceeds to step S27, where work time series data is created. The data created in step S27 is
28, it is written into the RAM 15.

Thereafter, in step S29, speed data compression processing is performed based on the speed data in the RAM 15.

This compression process is performed by sequentially checking each piece of speed data in the RAM 15 to see if any of the speed data corresponds to one of the five patterns, as described above with reference to FIGS. 13 to 11.

Based on this processing result, speed time series data is created in step S30, and this is written to the RAM 15 and temporarily stored in step S31.

Next, in step S32, it is checked whether there is any remaining capacity in the IC card 18. If there is remaining capacity in the IC card 18, writing is performed in the IC card 18 in step S33, and if there is no remaining capacity, writing is performed on the IC card 18. In step S34, a warning about the amount of remaining tools is given. After executing step S33 or 334, the process returns to the interrupted step in the main flowchart of FIG.

In the above embodiment, an IC card is used as the recording medium, but in the case of an IC card, the writing time is slow because the memory element part is composed of E2FROM so that a bank amplifier power supply is not required. , write-only C
It may be more advantageous to provide a PU. However, when a RAM puncture is used as the recording medium, the configuration shown in the figure is sufficient because the writing time is fast.

Further, in the illustrated embodiment, a running pulse counter is used, but it is also possible to have the CPU 11 count the running pulses, and in this case, the running pulse counter is not necessary.

〔effect〕

As explained above, according to the present invention, the work data and speed data of the snowplow can be obtained in chronological order, so that subsequent analysis of the work situation can be performed very accurately and easily.Moreover, the speed data By compressing the data, the capacity of the recording medium can be reduced, which is extremely advantageous in terms of handling and cost.

In addition, at least a unique number for the snowplow and driver can be entered freely, and this number data is recorded together with work data, making it easy to obtain management data for each snowplow and driving sound. .

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the basic configuration of a snowplow construction recording device according to the present invention, Fig. 2 is a block diagram showing an embodiment of the present invention, and Figs. 3 to 11 show examples of data formats of speed data. 12 and 13 are flowcharts showing the work performed by the CPU in FIG. 2. A... State detection means, B... Speed detection means, C...
・Number input means, D...Status temporary recording means, E...
Speed temporary storage means, F... Number storage means, G... Data compression processing means, H... Portable recording medium, ■...
writing means. Patent Applicant Hokuriku Regional Construction Bureau Ministry of Construction YaVi1 Sogyo Co., Ltd. H Figure 1 BOI 2 3 4 5 6 7 Figure 5 80 + 2 3 4 5 6
7 Figure 6 BO12345678910 1 (1) (2) +31 Hollow' 8r￥1 1 Figure 9

Claims (1)

[Scope of Claims] Condition detection means for detecting the state of the snow removal operation device; speed detection means for detecting the speed of the snow removal vehicle to which the snow removal operation device is attached; and at least a number unique to the snow removal vehicle and the driver. a number input means for inputting; a state storage means for storing state data based on the detection output of the state detection means; a speed storage means for storing speed data based on the speed detected by the speed detection means; and the number input means. a number storage means for storing number data inputted by the speed storage means; a data compression processing means for compressing the speed data stored in the speed storage means by comparing the data with a predetermined pattern; writing means for writing the stored state time series data and the compressed speed time series data onto a removable, portable recording medium together with the number data stored in the number storage means; A snowplow construction recording device.