CN113545215A - Blade maintenance prompting method and device, mower, storage medium and system - Google Patents
Blade maintenance prompting method and device, mower, storage medium and system Download PDFInfo
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- CN113545215A CN113545215A CN202010333611.3A CN202010333611A CN113545215A CN 113545215 A CN113545215 A CN 113545215A CN 202010333611 A CN202010333611 A CN 202010333611A CN 113545215 A CN113545215 A CN 113545215A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/006—Control or measuring arrangements
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/001—Accessories not otherwise provided for
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The application provides a method for prompting blade maintenance of a mower, which comprises the steps of confirming that the current for driving a blade is greater than or equal to a threshold value; collecting actual working time when the current for driving the blade is greater than or equal to a threshold value; and when the accumulated actual working time is greater than or equal to a preset value, sending out maintenance information. According to the blade maintenance prompting method, whether the blade is in the actual working state or not is judged according to whether the current for driving the blade is larger than or equal to the threshold value or not, so that the actual working time of the blade is accurately accumulated, whether the blade needs to be maintained or not is judged according to whether the actual working time of the blade is larger than or equal to the preset value or not, the precision of blade maintenance prompting is improved, and the resource waste is reduced. The application also provides a blade maintenance prompting device, a mower, a storage medium and a blade maintenance prompting system, the steps of the blade maintenance prompting method are realized, and the blade maintenance prompting method has the same beneficial effects as the blade maintenance prompting method provided by the application.
Description
Technical Field
The application relates to the technical field of mowers, in particular to a blade maintenance prompting method, a blade maintenance prompting device, a mower, a storage medium and a system.
Background
The blade is driven to rotate at a high speed by an engine of the mower, and the vegetation such as flowers, plants, trees and the like is trimmed by the blade. The blade of lawn mower is wearing and tearing gradually in the use, and the very big work efficiency that influences of wearing and tearing blade consequently, needs in time to indicate the user to maintain the blade.
Disclosure of Invention
In view of this, embodiments of the present application are expected to provide a method, an apparatus, a lawn mower, a storage medium, and a system for prompting a user to repair a blade, and to achieve the above beneficial effects, the technical solution of the embodiments of the present application is implemented as follows:
an aspect of the present application provides a method for prompting blade maintenance of a lawn mower, including:
confirming that a current driving the blade is greater than or equal to a threshold;
collecting actual working time when the current for driving the blade is greater than or equal to a threshold value;
and when the accumulated actual working time is greater than or equal to a preset value, sending out maintenance information.
Further, before the step of confirming that the current driving the blade is greater than or equal to the threshold, the maintenance prompting method further includes:
obtaining a current driving the blade.
Further, the step of obtaining the current for driving the blade specifically includes:
collecting the voltage of a sampling resistor;
and acquiring the current for driving the blade according to the proportional relation between the voltage of the sampling resistor and the current for driving the blade.
Further, the step of collecting the voltage of the sampling resistor specifically includes:
and acquiring the voltage of the sampling resistor through an analog-to-digital converter.
Further, the step of obtaining the current for driving the blade specifically includes:
and acquiring the current for driving the blade through a current sensor.
Further, the maintenance information comprises at least one of prompt information, prompt sound or prompt light.
An aspect of the embodiment of the present application further provides a blade maintenance prompting device for a lawn mower, including:
a current confirmation module configured to confirm that a current driving the blade is greater than or equal to a threshold;
a time acquisition module configured to acquire an actual operating time for which the blade current is greater than or equal to a threshold; and
and the maintenance prompting module is configured to send out maintenance information when the accumulated actual working time is greater than or equal to a preset value.
Further, the maintenance prompting device further comprises:
a current draw module configured to draw a current to drive the blade.
Further, the current acquisition module includes:
a voltage acquisition unit configured to acquire a voltage of the sampling resistor; and
a current obtaining unit configured to obtain a current driving the blade through a proportional relationship between the voltage of the sampling resistor and the current driving the blade.
Further, the maintenance information comprises at least one of prompt information, prompt sound or prompt light.
In another aspect, the present invention provides a lawn mower, including a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to implement the steps of any one of the above-mentioned maintenance prompting methods when running the computer program.
In another aspect, an embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of any one of the maintenance prompting methods described above.
Another aspect of the embodiments of the present application further provides a system for prompting blade maintenance of a lawn mower, including:
the above mower; and
and the terminal equipment can display the maintenance information.
Further, the blade maintenance prompting system further comprises a server, the mower sends the maintenance information to the server, and the server sends the maintenance information to the terminal device.
According to the blade maintenance prompting method, whether the blade is in the actual working state or not is judged according to whether the current for driving the blade is larger than or equal to the threshold value or not, so that the actual working time of the blade is accurately accumulated, whether the blade needs to be maintained or not is judged according to whether the actual working time of the blade is larger than or equal to the preset value or not, the precision of blade maintenance prompting is improved, and the resource waste is reduced. The blade maintenance prompting device, the mower, the storage medium and the blade maintenance prompting system provided by the embodiment of the application realize the steps of the blade maintenance prompting method, and have the same beneficial effects as the blade maintenance prompting method provided by the embodiment of the application.
Drawings
Fig. 1 is a flowchart of a method for prompting blade maintenance of a lawn mower according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of another method for prompting blade maintenance of a lawn mower according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of a method for prompting blade maintenance of a lawnmower according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of a blade maintenance prompting device of a lawn mower according to an embodiment of the present disclosure;
FIG. 5 is a block diagram of another alternative blade maintenance prompting device for a lawn mower according to an embodiment of the present disclosure;
FIG. 6 is a block diagram of a blade maintenance prompting device of yet another lawn mower provided in an embodiment of the present application;
FIG. 7 is a block diagram of a lawn mower provided in accordance with an embodiment of the present disclosure;
FIG. 8 is a block diagram of a blade maintenance reminder system for a lawn mower according to an embodiment of the present disclosure;
fig. 9 is a block diagram of another blade maintenance prompting system of a lawn mower according to an embodiment of the present disclosure.
Description of the reference numerals
A blade maintenance prompting device 100; a current confirmation module 10; a time acquisition module 20; a maintenance prompt module 30; a current acquisition module 40; a voltage acquisition unit 41; a current acquisition unit 42; a blade maintenance prompting system 1; a mower 1000; a processor 1001; a memory 1002; a terminal device 2000; a server 3000.
Detailed Description
In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present application. The following detailed description of the preferred embodiments of the present application, however, will suggest that the present application may have other embodiments in addition to these detailed descriptions. And should not be limited by the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, an aspect of the present application provides a method for prompting maintenance of a blade of a lawn mower, where the method for prompting maintenance includes:
and S110, confirming that the current for driving the blade is greater than or equal to a threshold value.
A lawn mower in an embodiment of the present application includes a blade, a processor, a memory, and a motor coupled to the blade. The motor converts the electric energy into kinetic energy, and the blade is driven to run by the motor, so that the current of the motor is the current for driving the blade. The system comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for implementing the steps of the maintenance prompting method in the embodiment of the application when the computer program is run.
During the actual operation of the lawn mower, due to the difference in the heights of vegetation such as flowers, plants and trees, the blade may be idle, for example, when the vegetation is cut after the vegetation is cut higher and then the vegetation is cut short, the blade does not cut the vegetation although moving. In the process of the motor driving the blade to operate, the current of the blade when the blade actually trims vegetation such as flowers, plants, trees and the like is larger than the current of the blade when the blade idles. And when the blade is in the idle state, because the vegetation is not trimmed, the blade can not be worn, namely, the service life of the blade can not be lost in the idle state. In the idle state, there is a deviation between the motor operation time and the actual operation time, in other words, the motor operation time includes the actual operation time and the idle time. The actual on time of the motor of the blade (i.e., the actual on time of the current driving the blade) refers to the time the blade actually trims vegetation. If the current time for driving the blade is directly collected, the idle time is accumulated, so that the accumulation of the actual working time is incorrect, the prompt time for blade maintenance is inaccurate, and the blade possibly sends out maintenance information in the service life.
Therefore, in the embodiment of the present application, the magnitude of the current when the blade actually trims the vegetation is set as the threshold, and it is determined whether the current driving the blade is greater than or equal to the threshold in the blade operation process.
It should be noted that the threshold in the embodiment of the present application may be a static value, and for example, the threshold is a certain value or a range of values; the threshold may also be a dynamic value, for example, the motor of the blade has different operation modes according to the actual mowing requirement, the operation mode may be, for example, a mowing mode or a tree pruning mode, and the threshold corresponds to different current thresholds for driving the blade in the different operation modes, so that the threshold is a dynamic value that changes according to the operation mode of the motor. In another embodiment, an adjustment factor may be set according to the state of the mower, and the threshold may be adjusted by the adjustment factor, where the state may be the operation time of the motor of the blade or the operation mode of the mower. The above is merely an example of the present application, and those skilled in the art may select an appropriate threshold determination method according to actual situations in implementation, and the present application is not limited to this.
And S120, collecting the actual working time when the current for driving the blade is greater than or equal to a threshold value.
And when the current of the driving blade in the blade running process is determined to be larger than or equal to the threshold value, acquiring the actual working time of the driving blade, wherein the current of the driving blade is larger than or equal to the threshold value. And when the current for driving the blade in the blade running process is smaller than the threshold value, the current for driving the blade is the current in the blade idling state, and the idling time is not collected.
And S130, when the accumulated actual working time is greater than or equal to a preset value, sending maintenance information.
The service life of the blade is set to a preset value. And when the accumulated actual working time of the blade is greater than or equal to the preset value, namely, when the accumulated actual working time of the blade is greater than or equal to the service life of the blade, sending out maintenance information for prompting a user that the blade needs to be maintained.
In the process of motor drive blade operation, the electric current when vegetation such as flowers and plants, trees are pruned to the blade is actual is greater than the electric current when the blade idles, whether the electric current according to the drive blade is greater than or equal to the threshold value and judges whether the blade is in actual operating condition to the actual operating time of accurate accumulation blade, whether the actual operating time through the accumulation blade is greater than or equal to the default and judges whether need maintain the blade, improves the precision of blade maintenance suggestion, reduces the wasting of resources.
In an embodiment, referring to fig. 2, before the step of confirming that the current driving the blade is greater than or equal to the threshold value in S110, the maintenance prompting method further includes:
and S100, acquiring current for driving the blade.
The current of the driving blade is acquired to confirm whether the acquired current of the driving blade is greater than or equal to a threshold value.
In an embodiment, referring to fig. 3, the step of obtaining the current for driving the blade at S100 specifically includes:
s101, collecting the voltage of a sampling resistor;
and S102, acquiring the current for driving the blade according to the proportional relation between the voltage of the sampling resistor and the current for driving the blade.
And a sampling resistor is connected in series with a circuit of the motor driving blade, so that the magnitude of the current passing through the sampling resistor is the same as that of the current driving the blade. The voltage at the two ends of the sampling resistor is collected, the magnitude of the current passing through the sampling resistor can be calculated by using the ohm law, and the current passing through the sampling resistor is the same as the magnitude of the current driving the blade, so that the current driving the blade can be obtained. That is, the proportional relationship between the voltage of the sampling resistor and the current driving the blade means that the ratio between the voltage of the sampling resistor and the current driving the blade is the magnitude of the sampling resistor.
In an embodiment, referring to fig. 3, step S101 of collecting the voltage of the sampling resistor specifically includes collecting the voltage of the sampling resistor through an analog-to-digital converter.
An Analog To Digital Converter (a/D Converter) is an electronic component that converts an input voltage into an output Digital signal. The voltage of the sampling resistor is converted into digital information by an analog-to-digital converter.
In another embodiment, referring to fig. 2, S100, the step of obtaining the current for driving the blade specifically includes obtaining the current for driving the blade through a current sensor.
In this manner, the current information of the current driving the blade is converted into digital information by the current sensor.
In one embodiment, the user can register and log in through the mobile phone client to be bound with the mower in advance, and when the accumulated actual working time is greater than or equal to a preset value, the maintenance information can be directly sent to the mobile phone client of the user. For example, when the accumulated actual working time is greater than or equal to a preset value, the mower sends a prompt to the server, and the server forwards the maintenance information to the mobile phone client of the user so as to prompt the user to maintain the mower directly.
In an embodiment, please refer to fig. 1 to 3, the maintenance information includes at least one of a prompt message, a prompt sound or a prompt light.
The maintenance information may be one of prompt information, prompt sound or prompt light, or any two of prompt information, prompt sound or prompt light, for example, the maintenance information may be prompt information and prompt sound, the maintenance information may be prompt information and prompt light, or the maintenance information may be prompt sound and prompt light. The maintenance information can also be prompt information, prompt sound and prompt light.
Specifically, the prompt message may include words and/or symbols. The cue sound may include a voice and/or an alarm sound. The notification light may include a flashing light and/or a warning light.
Referring to fig. 4, the present embodiment further provides a blade maintenance prompting device of a lawn mower, where the blade maintenance prompting device 100 includes a current confirmation module 10, a time acquisition module 20, and a maintenance prompting module 30. The current confirmation module 10 is configured to confirm that the current driving the blade is greater than or equal to the threshold. The time acquisition module 20 is configured to acquire an actual on-time for which the blade current is greater than or equal to a threshold value. The maintenance prompting module 30 is configured to send out maintenance information when the accumulated actual working time is greater than or equal to a preset value.
With regard to the blade maintenance prompting device 100 in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the maintenance prompting method, and will not be described in detail here.
In an embodiment, referring to fig. 5, the maintenance prompting device 100 further includes a current obtaining module 40. The current draw module 40 is configured to draw the current that drives the blade.
In an embodiment, referring to fig. 6, the current obtaining module 40 includes a voltage collecting unit 41 and a current obtaining unit 42. The voltage acquisition unit 41 is configured to acquire a voltage of the sampling resistance. The current obtaining unit 42 is configured to obtain the current for driving the blade by sampling a proportional relationship between the voltage of the resistor and the current for driving the blade.
In an embodiment, referring to fig. 4 to 6, the maintenance information includes at least one of a prompt message, a prompt sound or a prompt light.
Specifically, the prompt message may include words and/or symbols. The cue sound may include a voice and/or an alarm sound. The notification light may include a flashing light and/or a warning light.
Referring to fig. 7, in another aspect, the present invention provides a lawn mower, where the lawn mower 1000 includes a processor 1001 and a memory 1002 for storing a computer program capable of running on the processor 1001, where the processor 1001 is configured to implement the steps of the maintenance prompting method provided in any one of the above embodiments when the computer program is run.
In another aspect, an embodiment of the present application further provides a storage medium on which a computer program is stored. The computer program is executed by a processor to implement the steps of the service prompting method provided by any one of the above embodiments.
Referring to fig. 8, in another aspect of the embodiment of the present application, a blade maintenance prompting system for a lawn mower is provided, and a blade maintenance prompting system 1 includes the lawn mower 1000 and a terminal device 2000 provided in the above embodiment. The terminal device 2000 can display the maintenance information.
The terminal device in the embodiment of the application can be a mobile terminal or a fixed terminal, wherein the mobile terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer or an intelligent watch; the fixed terminal includes but is not limited to a desktop computer or a smart home device. Illustratively, the smart home device may be a smart tv, a smart cleaning robot, a smart refrigerator, or the like. The maintenance information may be displayed on any terminal device capable of running the computer program.
In one embodiment, referring to fig. 9, blade repair prompt system 1 further includes server 3000. The mower 1000 sends maintenance information to the server 3000. The server 3000 transmits the maintenance information to the terminal device 2000.
In some embodiments, mower 1000 includes a communication module by which mower 1000 can send maintenance information to terminal device 2000, and terminal device 2000 displays the maintenance information (e.g., displays specific prompting text and/or symbols, sounds a specific prompting voice and/or alarm, emits a specific prompting blinking light and/or warning color light, etc.). In some embodiments, the lawn mower 1000 may further transmit the maintenance information to the server 3000 through the communication module, the server 3000 transmits the received maintenance information to the terminal device 2000, and the terminal device 2000 displays the maintenance information. Here, the communication module may include, but is not limited to, one or more of a bluetooth module, a Wireless Fidelity (WIFI) module, a fourth or fifth Generation (4th Generation/5th Generation, 4G/5G) communication module, an infrared module, and other Wireless data communication modules, and may further include one or more of a Serial communication module, a Universal Serial Bus (USB) module, and other wired data communication modules.
The above description of the embodiments of the blade maintenance prompting device 100, the lawn mower 1000, the storage medium, and the blade maintenance prompting system 1 is similar to the description of any one of the embodiments of the blade maintenance prompting method described above, and has the same advantageous effects as the embodiments of the blade maintenance prompting method. For technical details not disclosed in the blade maintenance prompting device 100, the lawn mower 1000, the storage medium, and the blade maintenance prompting system 1 in the embodiment of the present application, please refer to the description of the embodiment of the blade maintenance prompting method in the embodiment of the present application.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (14)
1. A method for prompting maintenance of a blade of a lawn mower, comprising:
confirming that a current driving the blade is greater than or equal to a threshold;
collecting actual working time when the current for driving the blade is greater than or equal to a threshold value;
and when the accumulated actual working time is greater than or equal to a preset value, sending out maintenance information.
2. The maintenance prompting method according to claim 1, wherein before the step of confirming that the current driving the blade is greater than or equal to a threshold value, the maintenance prompting method further comprises:
obtaining a current driving the blade.
3. The maintenance prompting method according to claim 2, wherein the step of obtaining the current for driving the blade specifically includes:
collecting the voltage of a sampling resistor;
and acquiring the current for driving the blade according to the proportional relation between the voltage of the sampling resistor and the current for driving the blade.
4. The maintenance prompting method according to claim 3, wherein the step of collecting the voltage of the sampling resistor specifically comprises:
and acquiring the voltage of the sampling resistor through an analog-to-digital converter.
5. The maintenance prompting method according to claim 2, wherein the step of obtaining the current for driving the blade specifically includes:
and acquiring the current for driving the blade through a current sensor.
6. The maintenance prompting method according to any one of claims 1 to 5, wherein the maintenance information includes at least one of a prompting information, a prompting sound or a prompting light.
7. A blade maintenance prompting device of a mower, comprising:
a current confirmation module configured to confirm that a current driving the blade is greater than or equal to a threshold;
a time acquisition module configured to acquire an actual operating time for which the blade current is greater than or equal to a threshold; and
and the maintenance prompting module is configured to send out maintenance information when the accumulated actual working time is greater than or equal to a preset value.
8. The maintenance prompting device according to claim 7, further comprising:
a current draw module configured to draw a current to drive the blade.
9. The maintenance prompting device according to claim 8, wherein the current acquisition module comprises:
a voltage acquisition unit configured to acquire a voltage of the sampling resistor; and
a current obtaining unit configured to obtain a current driving the blade through a proportional relationship between the voltage of the sampling resistor and the current driving the blade.
10. The maintenance prompting device according to any one of claims 7 to 9, wherein the maintenance information comprises at least one of a prompting message, a prompting sound or a prompting light.
11. A lawnmower comprising a processor and a memory for storing a computer program operable on the processor, wherein the processor is operable when running the computer program to perform the steps of the method of any one of claims 1 to 6.
12. A storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the method of any one of claims 1 to 6.
13. A system for prompting blade maintenance of a lawn mower, comprising:
the mower of claim 11; and
and the terminal equipment can display the maintenance information.
14. The blade repair cue system of claim 13 further comprising a server, wherein the mower sends the repair information to the server, and wherein the server sends the repair information to the terminal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333611.3A CN113545215A (en) | 2020-04-24 | 2020-04-24 | Blade maintenance prompting method and device, mower, storage medium and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010333611.3A CN113545215A (en) | 2020-04-24 | 2020-04-24 | Blade maintenance prompting method and device, mower, storage medium and system |
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| CN113545215A true CN113545215A (en) | 2021-10-26 |
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| CN202010333611.3A Pending CN113545215A (en) | 2020-04-24 | 2020-04-24 | Blade maintenance prompting method and device, mower, storage medium and system |
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| JPH06155245A (en) * | 1992-11-30 | 1994-06-03 | Canon Inc | Control method for tool life |
| US20030015076A1 (en) * | 2000-07-21 | 2003-01-23 | Fuji Photo Film Co., Ltd. | Method and apparatus for estimating a life-span of a cutter |
| JP2003186508A (en) * | 2001-12-13 | 2003-07-04 | Eguro:Kk | Software for maintenance management |
| JP2005254337A (en) * | 2004-03-09 | 2005-09-22 | Brother Ind Ltd | Cutting device, cutting control device and cutting control program |
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