KR20000046409A - Method for reporting disorder time and replacing period of supplies in constructing equipment - Google Patents

Abstract

PURPOSE: A method is provided to report a defect time and the replacing period of supplies in a constructing equipment. CONSTITUTION: An input interface unit(22) transfers the input signals of an alternator(31), an alarming disable switch(33), and a replacement completing switch(35) to a CPU(central processor unit)(24). And, an output interface unit(26) transfers an output signal to a display(37) and a buzzer(39) by the control of the CPU. When the alternator is turned on, the CPU reads an integrated operating time stored in a nonvolatile memory(28) for calculating the integrated operating time while deciding the generation of defect and the replacing period of supplies. Then, an alarming sound is generated through the buzzer in case of requirement while displaying time information on the display. Moreover, the CPU renews the replacing time of supplies and the integrated operating time.

Description

Method of indicating supplies exchange period and fault time in construction apparatus

The present invention relates to a consumable replacement cycle and a failure time notification method of construction equipment that periodically informs the operator of time information about a replacement cycle or a failure occurrence time of the consumable according to the integration operation time.

In general, construction equipment has a variety of consumables that must be replaced periodically according to the use time. If these consumables are not exchanged in a timely manner, failures in construction equipment often occur or age rapidly.

However, most of the operators who operate construction equipment often miss the appropriate replacement time, and often do not know the replacement time, so that they cannot replace the consumables on time. In addition, in the case of construction equipment using hydraulic pressure, it is necessary to understand the timing of failure of solenoid valves and other electrical components, which are main components of the hydraulic controller, based on the equipment operation time.

On the other hand, the conventional construction equipment displays the operating time using an integrated time meter called an analog meter or a digital type (HOUR METER) as shown in FIG. Referring to FIG. 1, when the alternator 12 operates to provide power, the analog hour meter 14 displays the operating time cumulatively.

However, such a conventional meter only displays the operating time as a numerical value like an integrated odometer of a vehicle, and does not provide the user with information such as replacement time or trouble occurrence by using the same. Therefore, it is necessary to inform the operator or mechanic of consumable replacement cycles and downtime information without using a separate device to inform such information.

Accordingly, the present invention has been made to meet the above necessity, to detect the integration operation time without using an outer meter by using a controller having a central processing unit (CPU) and a non-volatile memory in construction equipment In addition, the purpose is to provide a replacement cycle of the consumables and a failure time notification method for notifying the operator or mechanic of the replacement cycle of the various consumables or storing the occurrence time of the failure and refer to the maintenance.

In order to achieve the above object, the method of the present invention is a construction equipment having a controller operated by a power supplied from an alternator when an engine of the construction equipment is operated, wherein the controller is written to a nonvolatile memory when the controller is turned on. Accumulating the accumulated operating time by reading the time information; Determining whether the current integration operating time coincides with a predetermined consumable replacement time; Generating a warning requesting replacement of the consumable when the determination result is matched; Determining whether to replace the consumable, and when the replacement is completed, storing a next replacement time of the consumable; And determining whether a failure occurs, and when a failure occurs, storing the failure time and generating a warning.

1 is a block diagram showing an apparatus for displaying in general integration operating time,

Figure 2 is a block diagram showing a controller portion of the construction equipment that can inform the consumables replacement cycle and failure time in accordance with the present invention,

3 is a flow chart illustrating a procedure in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

12, 31: alternator 14: analog hour

20: controller 22: input interface unit

24: central processing unit (CPU) 26: output interface

28: EEPROM 33: Warning Disable Switch

35: exchange completion switch 37: display

39: buzzer

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram showing the controller part of the construction equipment that can inform the replacement cycle and the failure time according to the present invention, the controller 20 and the alternator 31, the warning disable switch 33, the exchange completion switch 35, display 37, buzzer 39 are shown. The controller 20 includes an input interface unit 22, a central processing unit (CPU) 24, an output interface unit 26, and a nonvolatile memory (EEPROM: 28).

2, the alternator 31 provides a predetermined DC power signal when the engine of the construction equipment (not shown) operates, and the warning disable switch 33 turns on / off the warning function according to the present invention by the operator. To do it. That is, when the warning disable switch 33 is turned on, the consumable replacement time warning function according to the present invention will not operate. The replacement completion switch 35 is to transmit to the controller 20 that the consumable replacement warning is generated and the operator completes the replacement of the consumable by completing the replacement of the consumable. The display 37 displays various times and warnings, and the buzzer 39 generates a warning sound.

The input interface unit 22 transmits the input signal of the alternator 31, the warning disable switch 33, and the exchange completion switch 35 to the central processing unit (CPU) 24, and the output interface unit 26 has the center. The output signal is transmitted to the display 37 and the buzzer 39 under the control of the processing apparatus 24. When the alternator 31 is turned on by processing the procedure as shown in FIG. 3, the CPU 24 reads and accumulates the accumulated operating time stored in the nonvolatile memory 28 to calculate the accumulated operating time. The replacement cycle and the occurrence of the failure is determined to generate a warning sound through the buzzer 39 as necessary, and to display the time information on the display 37.

The nonvolatile memory 28 records time information as shown in Table 1 below. This information is not erased even when the power is turned off. Therefore, the central processing unit 24 uses the information shown in Table 1 to update the consumable replacement cycle and integration operation time.

Address area Saved Content 0x1F00 Accumulation Uptime 0x2F00 Supply A replacement cycle 0x2F01 Supply B replacement cycle .... .... 0x2F20 Consumable A Next Replacement Time 0x2F21 Consumable B Next Replacement Time

As shown in Table 1, in the nonvolatile memory 28, the accumulated operating time, the replacement cycle of each consumable, and the next replacement time of each consumable are recorded. The next replacement cycle of each consumable is updated with reference to the replacement cycle of the consumable when detecting that the replacement of the consumable is completed through the exchange completion switch 35. That is, the next replacement time is updated again by adding the corresponding replacement cycle to the currently recorded consumable replacement time.

Figure 3 is a flow chart illustrating a procedure for notifying the replacement cycle and failure time of consumables in the construction equipment according to the present invention.

The method according to the present invention reads the time information recorded in the nonvolatile memory 28 when the controller 20 is turned on to accumulate the accumulated operating time, and whether the current integrated operating time coincides with a predetermined consumable replacement time. Judging, if the result of the determination is consistent, generating a warning requesting replacement of the consumable, determining whether to replace the consumable, storing the next replacement time of the consumable, and determining whether a failure has occurred. If a failure occurs, the step of storing the failure time and generating a warning.

Referring to FIG. 3, in step S1, it is determined whether the controller 20 is on, and if it is on, the previous operating time is read from the nonvolatile memory 28 in step S2 to increase the integration uptime. In step S3, it is determined whether the warning disable switch 33 is on. If not, in step S4, the current integration operation time is compared with the consumable replacement time. As a result of the comparison in step S4, if the current integration operating time is greater than or equal to the replacement time of consumables, a warning is issued in step S5, and in step S6, it is determined whether the corresponding consumables have been replaced by the replacement completion switch 35. When the replacement of the judgment result is completed in step S6, the next replacement time is updated by adding the replacement cycle of the consumable to the current replacement time in step S7. In step S8, it is determined whether a failure has occurred, and when a failure occurs, the failure occurrence time is stored in step S9, and a warning is issued.

As described above, the present invention allows the operator to replace consumables in a timely manner in the management of construction equipment used in a work environment requiring wear resistance, durability, and periodic maintenance, to prevent wear of equipment, and to trouble There is an effect that can be prevented in advance. In addition, when a failure occurs, the failure time is stored in nonvolatile memory so that a mechanic or operator can refer to the cause of the failure.

Claims (1)

In construction equipment having a controller that is operated by the power supplied from the alternator when the engine of the construction equipment is operated, Accumulating integration operation time by reading time information recorded in a nonvolatile memory when the controller is turned on; Determining whether the current integration operating time coincides with a predetermined consumable replacement time; Generating a warning requesting replacement of the consumable when the determination result is matched; Determining whether to replace the consumable, and when the replacement is completed, storing a next replacement time of the consumable; And When the failure is determined by determining whether the failure occurs, the supply cycle and failure time notification method of the construction equipment comprising the step of storing the failure time and generating a warning.