JP3189910B2 - Operation information collection device for work vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle operation information collecting apparatus, and more particularly to a work vehicle operation information collection apparatus suitable for collecting operation information indicating the operation state of a work vehicle.

[0002]

2. Description of the Related Art Conventionally, when work such as snow removal is performed using a work vehicle such as a snowplow, a wage for the worker is calculated and paid based on the operation time of the work vehicle. For this reason, it is necessary to collect operation information indicating the operation state of a work vehicle such as a snowplow. Therefore, conventionally, there has been proposed an apparatus shown in FIG. 7 which collects and records operation information indicating that the snowplow is running when the snowplow is driven with the snowplow removed.

In FIG. 1, reference numeral 1 denotes a control box, which is a ROM (not shown) and a CPU which operates according to a predetermined control program stored in the ROM.
(Not shown) and a RAM (not shown) for storing various data, and perform tasks such as display control, data transfer, and data processing.

The control box 1 is connected to an IC memory card reader / writer (R / W) 4 in addition to a travel sensor 2 and a state sensor 3 for detecting the operation / non-operation of the snow removing device. An IC memory card 4a as a portable recording medium is detachably mounted on the memory card reader / writer (R / W) 4.

The traveling sensor 2 generates a pulse every time the snowplow travels a predetermined distance, and the state sensor 3 comprises, for example, a proximity switch provided corresponding to the snowplow used for the snowplowing operation. Or inactive.

[0006] Snow removal work data collected by the apparatus having the above-described configuration includes work time series data and the like, and the work time series data is based on signals from the travel sensor 2 and the state sensor 3 for running of a snowplow and snow removal equipment. The control box 1 reads the outputs of these sensors, for example, every second, and writes them to the internal RAM, for example, every minute based on the accumulated values.

[0007] The work time-series data temporarily collected in the internal RAM is divided into several patterns and shortened upon recording on the IC memory card 4a at a certain timing.

[0008] IC memory card 4 on which predetermined recording has been performed
“a” is taken out from the IC memory card R / W4 and is subjected to data analysis by a computer in the office.

When the target vehicle for which operation information is to be collected is a snowplow, snowplows include snowplow trucks, snowplow graders, rotary snowplows, antifreeze sprayers, snow loaders, snowplow dozers, and small snowplows. Therefore, the content of the work of each car is different, and naturally the type of data to be collected is also different.

[0010]

In the proximity switch used as a state sensor in the above-described conventional device, the logic level input to the control box 1 may be reversed depending on the mounting state. For example, as shown in FIG. 8, when the snow removing device is in the operating state and the movable member A approaches the front as shown in FIG. When the proximity switch B whose output is at the H level is applied to the control box 1 as shown by a dotted line in FIG. It is necessary to insert an interface (I / F) 5 for inverting the logic level of the signal.

Although there is not much problem when only one state sensor is used in one vehicle, generally, this kind of vehicle is often provided with a plurality of state sensors.
The output logic level of each state sensor may not be unified. In such a case, even if the I / F 5 is inserted,
Since the logic level of the signal from the state sensor is not clear unless the work vehicle is actually seen at the site, it takes time to actually mount the device on the work vehicle, and in addition to the I / F cost, the delivery time There was also a problem in terms of.

Therefore, the present invention has been made in consideration of the above-described conventional problems, and has been made in consideration of the above-described problems even if the logic level of a signal from a state sensor for detecting the state of a working device used for collecting operation data of a work vehicle changes. Operation of the working equipment
It is an object of the present invention to provide a work vehicle operation information collection device capable of recognizing a non-operation state.

[0013]

To solve the above-mentioned problems, a vehicle information collecting apparatus according to the present invention comprises a plurality of types of work vehicles , each of which is shown in FIG.
Device provided in correspondence to, it is possible to input a signal from a plurality of state sensors 15 ₁ to 15 _n for detecting the state of the working device respectively, to the condition sensor detected by the logic level of a signal the input Operation status of the corresponding working device
Operating information of the working vehicle is sequentially created based on the state, the created operating information is temporarily stored in the internal storage unit 11c, and the working data is stored in the internal storage unit 11c based on the operating information . in the working vehicle operation information collecting apparatus that collects written to the external storage medium 13a, the operation-logic level and the working device corresponding to the condition sensor signals from the state sensor 15 ₁ to 15 _n
A rewritable nonvolatile memory 11b storing setting data indicating a relationship with a non-operation state;
b writing means 11a-1 for writing the setting data to b
If, when inputting a signal from the state sensor 15 ₁ to 15 _n, the state on the basis of the setting data stored logic level of the input signal to the non-volatile memory 11b
And a detecting unit 11a-2 for detecting an operation state of the working device corresponding to the sensor .

[0014]

In the above construction, the rewritable nonvolatile memory 11b has a plurality of types of working devices of a work vehicle.
Provided corresponding set showing the relationship between the operating and non-operating state of the logic levels and working device corresponding to the condition sensor signals from a plurality of state sensors 15 ₁ to 15 _n for detecting the state of the working device respectively Data is stored, and the setting data can be written by the writing means 11a-1. Therefore, the state sensors 151 to ₁
Even if the logic level of the signal from 15 _n is changed, by changing rewrite the configuration data, detection means 11a-2 can be accurately detected operating state of the working device, each work vehicle For multiple types of working equipment
A plurality of condition sensors 15 ₁ to 15 _n provided correspondingly
By inputting the signal detected and generated,
The state detected by the logic level of the input signal
Work vehicle based on the operating state of the work device corresponding to the sensor
Both operation information can be sequentially created .

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a view showing an embodiment of a work vehicle operation information collecting apparatus according to the present invention. In FIG. 2, reference numeral 11 denotes a control box.
1 is a ROM (not shown) and a CPU 11 operating according to a predetermined control program stored in the ROM.
a and an internal RAM (not shown) for storing various data, and perform tasks such as display control, data transfer, and data processing.

First, a handy terminal 12 having a display unit 12a and a keyboard 12b is connected to the control box 11. The display unit 12a is an LCD,
It is composed of display elements such as VFT and LED,
Displays various information such as messages. Keyboard 1
Reference numeral 2b is used as input means for inputting various data described later, and includes ten keys and function keys.

The control box 11 also has an electrically erasable programmable read only memory (E ² PROM) 11 b composed of a nonvolatile memory, to which input is made by key operation of a keyboard 12 b of the handy terminal 12. Various setting data are written, and the setting data is used to collect and record operation information of the snowplow.

The control box 11 further includes an IC
A memory card reader / writer (R / W) 13 is connected to the IC memory card reader / writer (R / W).
W) 13 is a data IC as a portable external recording medium
A memory card 13a or an IC memory card 13b for setting data, which is also a portable external recording medium, is detachably mounted. Furthermore, the control box 11, the travel sensor 14, state sensor 15 ₁ to 15 _n for detecting a variety of snow removal operations are connected.

The travel sensor 14 generates a pulse each time the plow by a predetermined distance running, the state sensor 15 ₁ to 15 _n are made of, for example, proximity switches provided corresponding to the snow removing apparatus used in snow removal, respectively Is detected whether the snow removal device corresponding to is operating or not operating.

The data collected by the apparatus having the above configuration is snow removal work data and speed time series data. The snow removal work data is made up of as-needed data and work time-series data, and the as-needed data is the type of the snow removal device, the work classification, the fuel supply amount, the driver's code, etc., which are input by the keyboard 12b. These data are stored in the keyboard 12
b, the control box 11 displays the internal R and date / time data by a clock (not shown).
It is temporarily recorded on the AM (not shown).

[0021] Working time series data, the travel of the snowplow based on the signal from the traveling sensor 14, the working state sensor 15 ₁ -
Made from data representing the state of the snow removal device according to the signal from the 15 _n, reads the outputs of these sensors to Con roll box 11 is, for example, every one second, writing in the internal RAM in example every minute based on the accumulated value .

The speed time series data is obtained by reading a count value obtained by counting the pulses from the travel sensor 14 every 0.5 seconds, for example, and converting it into speed.
The information is sequentially recorded in a predetermined area of the AM.

The speed time-series data temporarily collected in the internal RAM is divided into several patterns and shortened upon recording on the data IC memory card 13a at a certain timing.

The data IC memory card 13a on which the predetermined recording has been performed is taken out from the IC memory card R / W 13 and used for data analysis by a computer in the office.

At the time of data analysis, the data IC memory card 13a is so identified that the data of the data IC memory card 13a belongs to which snowplow and driver.
For example, numbers indicating the numbers must be recorded in 3a, but these numbers are input separately by ten-key operation after designation of a setting mode by simultaneous operation of two keys of the keyboard 12b, and are recorded in advance in the E ² PROM 11b. What you have done is used. The setting designation mode is released by a SET key (not shown).

When the target vehicle for which operation information is to be collected is a snowplow, the snowplow includes a snowplow truck, a snowplow grader, a rotary snowplow, a deicing sprayer, a snow loader, a snowplow dozer, a small snowplow, and the like. There is, different contents of the work of each vehicle, since the different types of data to be naturally collected, the relationship between the output logic level of the state sensor 15 ₁ to 15 _n operation, a non-operating state, the function of the keyboard 12b Setting data used when collecting and recording snowplow operation data, such as key assignment, selection of data items to be collected, and setting of display characters, is input by key operation of the keyboard 12b and written into the E ² PROM 11b. It is necessary to keep. Since the E ² PROM 11b is nonvolatile, it does not require a power supply for holding data.

The details of the data collection operation will be described below. When the CPU 11 is first activated, the data initial value is set, and checks whether or not the data IC memory card 13a is mounted on the IC memory card R / W13. When the data IC memory card 13a is set, it is checked whether or not a key input by a key operation of the keyboard 12 is performed. If there is a key input, the key input is read, and the key input is processed based on the read input, and data is created as needed according to the processing result. The created work random data is written to the internal RAM.

It is checked whether the data IC memory card 13a has a remaining amount. This check is performed by looking at the write address to the data IC memory card 13a. If the data IC memory card 13a has a remaining amount, the data is written to the data IC memory card 13a, and if there is no remaining amount, the data IC memory card 1
For example, the buzzer sounds and the display unit 1
A warning is given by the display of 2a.

By the way, if a timer interrupt is activated during the execution of the above-mentioned operation, unless an interrupt is specifically disabled,
The calculation processing of the traveling distance and the calculation processing of the speed are respectively performed.

The output logic level of each of the state sensors 15 ₁ to 15 _n is input, and the working device is set to the operation state based on the relationship between the logic level of the signal from the sensor stored in the E ² PROM 11b and the operation / non-operation state. It is determined whether or not the work vehicle is in a running state based on a pulse signal from the running sensor 14 when it is in an operating state,
According to the result, the CPU 11a performs the time addition processing when the vehicle is in the operating state and the running state, and creates the work time-series data when the CPU 11a enters the non-operating state or after executing the above processing. Is written to the internal RAM.

The CPU 11a performs speed data compression processing based on the speed data in the internal RAM. Speed time series data is created based on the result of this processing, and the time series data is written into the internal RAM and temporarily stored.

As described above, since the work data and the speed data of the work vehicle can be obtained in a time series, the analysis of the later work situation can be performed very accurately and easily, and the speed data can be compressed. Accordingly, the capacity of the recording medium may be reduced, which is extremely advantageous in handling and cost.

Next, how to write the setting data to the E ² PROM 11a will be described in detail with reference to the flowcharts of FIGS.

The CPU 11a first determines whether or not the setting data IC memory card 13b prepared separately from the data IC memory card 13a has been inserted into the IC memory card R / W13. When it is determined that 13b has been inserted, the process proceeds to step S1, and
Here, the display “Read AorB Set” is displayed on the display unit 12 a of the handy terminal 12.

Thereafter, the process proceeds to step S2, where it is determined whether the "A" key among the function keys of the keyboard 12b of the handy terminal 12 has been operated. If the determination in step S2 is NO, the process proceeds to step S3. It is determined whether the "B" key among the function keys has been operated. If the determination in step S3 is also NO, the process proceeds to step S4 to determine whether the "SET" key has been operated. If the determination in step S4 is NO, the process returns to step S2 and returns to steps S2 to S2.
Step 4 is repeated until the judgment of any of steps S2 to S4 becomes YES, that is, until the "A" key, "B" key or "SET" key among the function keys is operated. If the determination in step S4 is YES, that is, if the "SET" key is operated, the flow advances to step S5 to set the setting data IC memory card 13b.
And a series of operations is terminated.

When the determination in step S2 is YES,
That is, when the “A” key is operated, the step S
In step S6, it is determined whether the "SET" key of the function keys has been operated.
If the answer is O, the process proceeds to step S7 to determine whether the "correction" key of the function keys has been operated. If the determination in step S7 is also NO, the process returns to step S6 and repeats steps S6 and S7.

When the determination in step S3 is YES,
That is, when the “B” key is operated, the step S
8 to determine whether the "SET" key of the function keys has been operated.
If it is O, the process proceeds to step S9 to determine whether the "correction" key of the function keys has been operated. If the determination in step S9 is also NO, the process returns to step S8 and repeats steps S8 and S9.

If the determination in step S6 is YES, the process proceeds to step S10, where the set value in the setting data IC memory card 13b is read and written to the E ² PROM 11b, and thereafter, the process proceeds to step S11 to set the setting data IC memory card. 13b is discharged, and a series of operations ends. That is, when the "SET" key is operated after the "A" key, all the setting values in the setting data IC memory card 13b are written to the E ² PROM 11b.

If the determination in step S7 or S9 is YES
In other words, when the "correction" key is operated, the process returns to step S2 to perform the above-described processing.

If the determination in step S8 is YES, the process advances to step S12 to display "Write? Kakikomi SET" on the display section 12a of the handy terminal 12, and then advances to step S13. Step S13
In, it is determined whether the "f8" key and the "loading" key among the function keys have been operated simultaneously, and when the determination in step S13 is NO, the key operation among the various function keys is monitored. A determination is made, and it is determined whether or not the "SET" key has been operated simultaneously in the last step S14. If this determination is NO, the process returns to step S13, and these steps are repeated until the determinations in steps S13 and S14 become YES. Repeat steps.

That is, "B" key is followed by "SET"
When the key is operated, a correction mode of ten key input is entered, and individual correction using the ten key is enabled. At this time, the setting data IC memory card 13b serves as a key. When the "f8" key and the corresponding key are simultaneously operated in this state, each input mode is entered.

The above steps S13 and S14 are based on the E ² PR
Step S is a step for determining which item is specified to correct the setting data in the OM 11b.
Determines whether items are specified regarding the setting data indicating the relationship between the logical level and the operation and non-operation state of the signal from the state sensor 15 ₁ to 15 _n in 13, in other steps, for example, the function key assignment Then, it is determined which of the items related to the selection of the data items to be collected, the display character setting, the vehicle type, the vehicle number, the assignment of the state sensor, and the like has been designated.

Then, if the determination in step S13 is YES, the process proceeds to step S15, in which each of the state sensors 15 ₁ to 15 ₁ .
The process of setting the relationship between the logic level of the signal from the device 15 _n and the operation / non-operation state and the process of writing to the E ² PROM 114 are performed. In the process of step S15, the current setting state of the first to n-th sensors is sequentially displayed for each simultaneous operation of the "f8" key and the "loading" key among the function keys, and the displayed setting state is displayed. When changing, a numerical value corresponding to the content to be changed may be input by operating the ten keys. For example, when the logic level 0 of the signal from the sensor is the operation, “1” is set to the logic level 1 of the signal from the sensor.
"2" may be set when is the operation.

The processing in step S15 is described in detail below.
This is performed by executing the steps shown in the flowchart of FIG. That is, the first step S
At 15a, the previous data of the set value is displayed, and at step S15b, a ten-key operation is input. Thereafter, the process proceeds to step S15c to determine whether or not the "correction" key is operated. If the operation is performed and the determination is YES, the process returns to step S15a to perform the original display.

If the determination in step S15c is NO, the process proceeds to step S15d to determine whether or not the "SET" key has been operated. If the operation has not been performed and the determination is NO, the process returns to step S15b and the operation has been determined. If YES is determined, the flow advances to step S15e to write the set value by ten-key input into the E ² PROM 114, and then returns to step S12 to enable the next item to be corrected to be selected.

When the determination in step S14 is YES, that is, when the "SET" key of the function keys has been operated, it is determined that the setting of the setting data has been forcibly terminated, and the flow advances to step S16 to call "SETTING UP". A display is performed, and thereafter, the process proceeds to step S17, where the setting data in the E ² PROM 11b is written into the setting data IC memory card 13b, and then the setting data IC memory card 13b is ejected, and a series of operations is ended.

The set written in E ² PROM11b as described above data, in particular, the setting data indicating the relationship between the state sensor 15 ₁ to 15 _n of the output logic level operation, a non-operating state, the working time-series data It is used when it is created and written to the internal RAM, and how to use it will be described in detail with reference to the flowchart of FIG.

The CPU 11a operates each state sensor 1 every second.
5 ₁ to enter a signal from the 15 _n, the logical level of the signal from the state sensor 15 ₁ 1 at step S21,
It is determined which of the two is zero. Setting for state sensor 15 ₁ proceeds to step S22 when this determination is 0 determines which one of 1,2. As a result of the determination in step S22 is to be in the work device operation state is monitored by condition sensors 15 ₁ proceeds to step S23 when a 1, a non-operation proceeds to step S24 when a 2 (non-working) And

After step S23, the process proceeds to step S25, where it is determined whether or not the work vehicle is running based on the pulse from the travel sensor 14. If the determination is YES, the process proceeds to step S26, where the work vehicle is operating. If NO, the process proceeds to step S27, and it is determined that the device is not operating.

[0050] determines whether the setting value for the state sensor 15 ₁ proceeds to step S28 when the determination result is 1 in the step S21 is any of 1, 2. And this is when the result of the determination in step S28 is 2 working device being monitored by the state sensor 15 ₁ proceeds to step S23 is in operation, but then the process proceeds to the step S25, to step S24 when a 1 It is assumed that it is non-operation (non-operation).

By executing the above-described flowchart, the CPU 11a sets the E ² PROM as a nonvolatile memory.
Writing means 11a-1 for writing setting data to 11b
Other as, when inputting a signal from the state sensor 15 ₁ to 15 _n, the logic level of the input signal and the E ² PRO
Based on the setting data stored in M11b, it functions as detecting means 11a-2 for detecting the operation state of the corresponding working device.

[0052] In summary, stored in rewritable setting data indicating a relationship between the operating and non-operating state of the logical level corresponding working device signals from a plurality of state sensors 15 ₁ to 15 _n to E ² PROM11b since it is, even if the logic level of the signal from the state sensor 15 ₁ to 15 _n is changed, by changing rewrite the configuration data, detection means 11a-2 is accurately detect an operating state of the working device can do.

[0053]

As described above, according to the present invention, the rewriting indicating the relationship between the logic levels of the signals from the plurality of state sensors for detecting the state of the working device and the corresponding operating / non-operating state of the working device. Since it has possible setting data,
Even if the logic level of the signal from the state sensor changes, the operation and operation can be performed by simply rewriting and changing the setting data.
Ri Na to be able to recognize the non-operating state, by inserting an interface for inverting the logic level
There is no need to use a step where the work equipment is actually mounted on the work vehicle.
Easy to handle on the floor, delivery time in addition to interface cost
Even in the face advantageously ing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a work vehicle operation information collection device according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a work vehicle operation information collection device according to the present invention.

FIG. 3 is a flowchart showing a part of a task performed by a CPU of the apparatus shown in FIG. 2;

FIG. 4 is a flowchart showing another part of the work performed by the CPU of the apparatus shown in FIG. 2;

FIG. 5 is a flowchart showing details of a part of the flowchart in FIG. 4;

FIG. 6 is a flowchart illustrating another part of the work performed by the CPU of the apparatus in FIG. 2;

FIG. 7 is a block diagram illustrating an example of a conventional device.

FIG. 8 is a diagram showing an example of an attachment state of a state sensor to a work vehicle.

[Explanation of symbols]

15 ₁ to 15 _n status sensor 11a-1 CPU (writing means) 11a-2 CPU (detecting means) 11b E ² PROM (rewritable nonvolatile memory) 11c Internal RAM (internal storage means) 13a for data IC memory card ( External storage medium for portable data)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07C 5/00

Claims (1)

(57) [Claims] 1. Each of a plurality of types of working devices of a working vehicle.
Provided corresponding, can input signals from a plurality of state sensors for detecting the state of the working device respectively, the state cell detected by the logic level of a signal the input
Create the operation information of the work vehicle based on the operation state of the working device corresponding to capacitors sequentially the operation information the created temporarily stored in the internal storage means, operation information stored in the internal storage means
The work information collection device for a work vehicle writes and collects work data in a portable external storage medium for data on the basis of the information, the logical level of the signal from each of the state sensors and the state
And rewritable nonvolatile memory storing configuration data indicating a relationship between the operation-the non-operating state of the working device corresponding to capacitors, and writing means for writing said setting data to the nonvolatile memory, the signal from the state sensor And detecting means for detecting the operating state of the working device corresponding to the state sensor based on the logic level of the input signal and the setting data stored in the nonvolatile memory when Operation information collection device for work vehicles.