JP2015092907A - Sewing machine, method for controlling sewing machine, and program for controlling sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewing machine which can record the occurrence time of an event, together with the detail of the event, in log information even without a clock function; to provide a method for controlling the sewing machine; and to provide a program for controlling the sewing machine.SOLUTION: A sewing machine includes an interval counter. The interval counter counts one every 0.1 second after a power source is turned on. After the power source is turned on, the sewing machine receives time information from an operation terminal after the opening of communication with the operation terminal. The sewing machine corrects a count value of the interval counter at the time of the reception so that the count value is made to correspond to a time at the time of the reception. Thereafter, every time an event is detected, the sewing machine stores, in a non-volatile memory, log information in which a time indicated by the count value is defined as an occurrence time and is made to correspond to the detail of the event. Even without a clock function, the sewing machine with a function of communication with the outside thereof can create the log information in which an accurate time is made to correspond to the detail of the event.

Description

  The present invention relates to a sewing machine, a sewing machine control method, and a sewing machine control program.

  Conventionally, there is a sewing machine that can detect an event that occurs in a sewing machine and create log information that records the detection history. Log information is important in managing the operating status of the sewing machine. Events include, for example, power on of the sewing machine, sewing start, sewing end, pattern change, error, power off, and the like. Since a general sewing machine does not have a clock function, an event occurrence time cannot be included in log information. Time information is necessary to accurately manage the operating status of the sewing machine. In the technology described in Patent Document 1, a plurality of multi-head sewing machines are connected to a computer, and the occurrence time of an event occurring in each of the plurality of multi-head sewing machines is recorded in log information using a clock function of the computer.

JP 2002-282567 A

  The technology described in Patent Document 1 is that a computer having a clock function records an event that occurred in a multi-head sewing machine and its occurrence time in log information, so that the computer and the multi-head sewing machine communicate each time an event occurs in the multi-head sewing machine. There is a need to. Therefore, it is necessary to continuously maintain the communication state between the computer and the multi-head sewing machine when the multi-head sewing machine is in operation. Therefore, when the communication between the computer and the multi-head sewing machine is disconnected, the event occurrence time cannot be recorded in the log information.

  An object of the present invention is to provide a sewing machine, a sewing machine control method, and a sewing machine control program capable of recording event occurrence time together with event contents in log information without having a clock function.

  A sewing machine according to a first aspect of the present invention is a sewing machine capable of detecting the occurrence of an event related to the sewing machine, a counting means for counting every predetermined time, a counting starting means for starting the operation of the counting means, and an external part of the sewing machine. Communication means for performing communication with, an acquisition means for acquiring time information from the outside of the sewing machine via the communication means after the operation start of the counting means by the counting start means, and the acquisition means Based on the time information, correction means for correcting the count value of the counting means to represent time, first determination means for determining whether or not the occurrence of the event has been detected, and the first determination means include the event If the occurrence of the event is detected, the time represented by the count value corrected by the correction means is used as the occurrence time, and the information associated with the contents of the event is used as the log information. Storage means for storing the re, wherein the storing means and output means for outputting the log information stored in the memory. Since the sewing machine acquires the time information only once and thereafter can create log information based on the time indicated by the count value corrected by the correction means, it does not need to have a clock function. Therefore, if the sewing machine has a communication function with the outside, log information in which the time of occurrence is associated with the content of the event that has occurred in the sewing machine can be created. Therefore, the manager can accurately control the production of the sewing machine.

  The sewing machine according to a second aspect of the present invention is the sewing machine according to the first aspect, in which, in addition to the configuration according to the first aspect, when the first determination means determines that the occurrence of the event is detected, the acquisition means has already acquired the time information A second determination unit that determines whether or not the second determination unit stores the count value when the occurrence of the event is detected when the acquisition unit determines that the time information is not acquired. When the count value temporary storage means and the acquisition means acquire the time information, the corresponding time corresponding to the count value stored in the count value temporary storage means is calculated based on the time information and the count value. Second calculation means, and the storage means stores information associating the corresponding time calculated by the second calculation means with the contents of the event in the memory as the log information. When That. When the sewing machine detects an event before acquiring time information, the sewing machine stores the count value at the time of occurrence detection of the event. Thereafter, when the time information is acquired, the corresponding time corresponding to the count value stored in the temporary count value storage means is calculated based on the time information and the stored count value, and the corresponding time is associated with the contents of the event. The stored information is stored in the memory as log information. Therefore, the sewing machine can retroactively calculate the occurrence time of an event that occurred before acquiring time information.

  A sewing machine according to a third aspect of the present invention is the sewing machine according to the second aspect, wherein the event includes a sewing start operation, and controls the sewing operation of the sewing machine according to the sewing start operation; Prohibition of prohibiting the start of the sewing operation by the control unit until the acquisition unit acquires the time information when the second determination unit determines that the acquisition unit has not acquired the time information The apparatus further comprises means. Therefore, the manager of the sewing machine can prevent the sewing machine from operating without time information in a situation where production management is performed.

  A sewing machine according to a fourth aspect of the present invention is the sewing machine according to any one of the first to third aspects, wherein the counting start means starts the operation of the counting means when the sewing machine is activated. It is characterized by. Therefore, the sewing machine can include the start time in the log information.

  The sewing machine according to a fifth aspect of the invention further includes a communication determination unit that determines whether or not communication with the outside of the sewing machine is possible via the communication unit, in addition to the configuration of the invention according to the fourth aspect. The acquisition means acquires the time information at least after the time when the communication determination means determines that communication with the outside of the sewing machine is possible after the sewing machine is activated. Since the sewing machine receives the time information after communication via the communication means is possible, the time information can be reliably and accurately acquired from the outside.

  The sewing machine control method according to claim 6 of the present invention is a sewing machine control method capable of detecting the occurrence of an event relating to the sewing machine, wherein the counting start step starts the operation of the counting means for counting every predetermined time, and the counting start After the start of the operation of the counting means in the process, an acquisition step of acquiring time information from outside the sewing machine via a communication means, and a count of the counting means based on the time information acquired in the acquisition step A correction step for correcting the numerical value to represent time, a determination step for determining whether or not the occurrence of the event has been detected, and a correction in the correction step if it is determined that the occurrence of the event has been detected in the determination step And storing the information associated with the contents of the event in the memory as log information, with the time represented by the counted value as the occurrence time, and the memo in the storage step Characterized by comprising an output step of outputting the log information stored in the. When the sewing machine performs the above control method, the sewing machine can obtain the effect of the first aspect.

  A sewing machine control program according to a seventh aspect of the present invention is a sewing machine control program for causing a computer of a sewing machine capable of detecting the occurrence of an event related to the sewing machine to perform an operation of a counting unit that counts every predetermined time. A counting start step to be started, an acquisition step of acquiring time information from outside the sewing machine via a communication unit after the operation start of the counting unit in the counting start step, and the time acquired in the acquisition step Based on the information, the correction step for correcting the count value of the counting means to represent time, the determination step for determining whether or not the occurrence of the event is detected, and the occurrence of the event is detected in the determination step If it is determined, the time represented by the count value corrected in the correction step is set as the occurrence time, and the content of the event is matched. A storing step of storing in a memory the association information as the log information, characterized in that it comprises an output step of outputting the log information stored in the memory in the storing step. When the computer executes the control program, the sewing machine can obtain the effect of the first aspect.

The perspective view of the sewing machine 1. FIG. FIG. 3 is a right side view of the front end portion 7 of the sewing machine 1. FIG. 3 is a block diagram showing an electrical configuration of the sewing machine 1 and the operation terminal 30. Flow chart of log creation control processing. FIG. 5 is a flowchart showing a continuation of FIG. 4. The flowchart of temporary log information processing. The figure which shows the event occurrence and the change of various information in time series. The figure which shows the change of temporary log information and log information. The flowchart of a part of log creation control process (modification).

  Hereinafter, a sewing machine 1 according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the top, bottom, left and right, front and back indicated by arrows in the figure are used.

  The overall structure of the sewing machine 1 will be described with reference to FIG. The sewing machine 1 includes a bed portion 2, a pedestal column portion 3, and an arm portion 4. The bed unit 2 is placed on the table 95. The bed portion 2 extends in the front-rear direction and includes a vertical hook (not shown) and the like inside. The pedestal part 3 extends vertically upward from the rear side of the bed part 2. The pedestal 3 includes a sewing machine motor 112 (see FIG. 3) and the like. The arm portion 4 extends forward from the upper end of the pillar portion 3 so as to face the upper surface of the bed portion 2 and includes a front end portion 7 at the front end. The arm unit 4 includes a main shaft, a needle bar drive mechanism (not shown), and the like. The needle bar 10 extends downward from the lower end of the front end portion 7. The sewing needle 11 can be attached to and detached from the lower end of the needle bar 10.

  The sewing machine 1 includes a work table 5 and a transfer device 6 above the bed 2. The work table 5 includes a needle plate 501. The needle plate 501 has a needle hole 502 through which the lower end of the sewing needle 11 can be inserted at a position immediately below the sewing needle 11 attached to the needle bar 10. The transfer device 6 includes a transfer plate 61, an elevating unit 62, a presser plate 63, a support unit 66, a transfer plate holding unit 64, an X-axis moving mechanism (not shown), an arm unit 65, and a Y-axis moving mechanism (not shown). .

  The transfer plate 61 is a plate member arranged in the horizontal direction, and has an opening having a rectangular shape in plan view. The transfer plate holding portion 64 extends in the left-right direction, and supports the transfer plate 61 and the support portion 66 so as to be movable in the X-axis direction (left-right direction). The X-axis moving mechanism is provided inside the bed portion 2. The X-axis moving mechanism uses the X-axis motor 114 (see FIG. 3) as a drive source, and moves the transfer plate 61 and the support portion 66 in the X-axis direction (left-right direction). The arm portion 65 connected to the transfer plate holding portion 64 is connected to a Y-axis moving mechanism provided in the pedestal column portion 3. The Y-axis moving mechanism uses the Y-axis motor 116 (see FIG. 3) as a drive source and moves the arm portion 65 in the Y-axis direction (front-rear direction). The transfer plate holding part 64 moves in the Y-axis direction (front-rear direction) as the arm part 65 moves.

  The transfer plate 61 supported by the transfer plate holding part 64 moves together with the support part 66. The support part 66 supports the raising / lowering part 62 so that raising / lowering is possible. The presser plate 63 is a rectangular frame-shaped plate member connected to the lower end of the elevating part 62. The opening of the pressing plate 63 has substantially the same shape as the opening of the transfer plate 61. The operator places a sewing object (for example, a work cloth) on the transfer plate 61. When the elevating part 62 moves downward, the presser plate 63 descends. The presser plate 63 and the transfer plate 61 hold the sewing object from above and below. Hereinafter, the transfer plate 61 and the presser plate 63 are collectively referred to as a holding body 60.

  The sewing machine 1 includes an operation panel 8 provided on a table 95 and an operation terminal 30 connected to the operation panel 8 via a cable 9. The operation panel 8 and the operation terminal 30 each include a key group for inputting various information and various instructions, and a display for displaying information. The operator uses the operation panel 8 or the operation terminal 30 when inputting information or instructions. The sewing machine 1 includes a control box (not shown) for storing the control device 100 (see FIG. 3) below the table 95. The operation panel 8 is connected to the control box via a cord (not shown). The operation terminal 30 is an external device and is detachably connected to the operation panel 8 via the cable 9. The operation terminal 30 can be carried alone and can be connected to other sewing machines.

  With reference to FIG. 2, the structure around the front end 7 of the arm 4 will be described. The front end portion 7 includes a configuration for guiding the upper thread 55, a needle bar 10 to which a sewing needle 11 is attached, a presser bar 12 to which a presser foot 13 is attached, and the like. The configuration for guiding the upper thread 55 includes a secondary thread tensioner 15, a thread tensioner 16, thread guides 17 and 18, a balance 19, and a thread guide 20 provided on the right side surface of the front end portion 7. The upper thread 55 includes a secondary thread tensioner 15, a thread tensioner 16, a thread guide 17, a thread guide 18, and a balance from a thread spool placed on a thread spool stand (not shown) provided on a table 95 (see FIG. 1). 19, through the thread guide 20, is inserted into the needle hole 111 of the sewing needle 11. As described above, the needle bar 10 extends downward from the lower end of the front end portion 7. The sewing machine motor 112 (see FIG. 3) rotates a main shaft (not shown). A needle bar drive mechanism (not shown) moves the needle bar 10 up and down as the main shaft rotates.

  The presser bar 12 extends downward from the lower end of the front end 7 on the left side of the needle bar 10 (on the back side in FIG. 2). The presser foot 13 is attached to the lower end of the presser bar 12. A presser foot drive mechanism (not shown) moves the presser bar 12 up and down in synchronization with the vertical movement of the needle bar 10 accompanying the rotational drive of the main shaft. The presser foot 13 prevents the sewing object from being lifted upward by pressing the sewing object from above when the sewing needle 11 is removed from the sewing object. The distal end portion of the presser foot 13 is a cylindrical tube portion 131. The sewing needle 11 is inserted into the sewing object through the through hole of the cylindrical portion 131. The sewing needle 11 moves up and down through a needle hole 502 below the cylinder portion 131.

  The electrical configuration of the sewing machine 1 will be described with reference to FIG. The control device 100 of the sewing machine 1 includes a CPU 101, a ROM 102, a RAM 103, a nonvolatile memory 104, an interval counter 105, an input / output interface (I / F) 107, drive circuits 113, 115, and 117, and a communication I / F 127. The CPU 101, ROM 102, RAM 103, nonvolatile memory 104, and interval counter 105 are electrically connected to the input / output I / F 107 via the bus 106. The CPU 101 controls the sewing machine 1 and executes various calculations and processes related to sewing according to various programs stored in the ROM 102. In addition to the log information creation control program of the present invention, the ROM 102 stores various programs, various initial setting parameters, sewing data of a plurality of patterns (stitch lines, stitch patterns, embroidery patterns, etc.) and the like. The RAM 103 temporarily stores the calculation result of the CPU 101, the pointer, the count value of the interval counter 105, the temporary log information of the sewing machine 1, and the like. Details of the temporary log information will be described later. The nonvolatile memory 104 stores sewing data created by the sewing machine 1 and various setting information input by the operator, as well as log information related to the operation of the sewing machine 1. Details of the log information will be described later. The interval counter 105 is a counter that is initialized to zero when the power is turned on, and thereafter counts every certain time (in this embodiment, 0.1 second).

  The drive circuits 113, 115, and 117 are electrically connected to the input / output I / F 107. The drive circuit 113 is electrically connected to the sewing machine motor 112. The CPU 101 controls the sewing machine motor 112 via the drive circuit 113. The sewing machine motor 112 rotates the main shaft. The drive circuit 115 is electrically connected to the X-axis motor 114. The drive circuit 117 is electrically connected to the Y-axis motor 116. The CPU 101 controls the X-axis motor 114 and the Y-axis motor 116 via the drive circuits 115 and 117, respectively. Both the X-axis motor 114 and the Y-axis motor 116 are pulse motors. The X-axis motor 114 and the Y-axis motor 116 move the holding body 60 in the X-axis direction and the Y-axis direction by driving the X-axis movement mechanism and the Y-axis movement mechanism, respectively.

  The CPU 101 controls the vertical movement of the needle bar 10 and presser bar 12 and the rotation of the vertical hook by driving the sewing machine motor 112 and rotating the main shaft during sewing. The CPU 101 controls the position of the holding body 60 by driving the X-axis motor 114 and the Y-axis motor 116 based on the sewing data simultaneously with the driving of the sewing machine motor 112. The sewing machine 1 performs sewing on the sewing object by this operation.

  The communication I / F 127 is electrically connected to the input / output I / F 107. The communication I / F 127 is an interface for serial communication, for example. The sewing machine 1 can be connected to an external device via the communication I / F 127. As shown in FIG. 3, the operation terminal 30 is electrically connected to the communication I / F 127 via the operation panel 8 connected by the cable 9.

  The X-direction origin sensor 118, the Y-direction origin sensor 119, the start switch 121, the operation panel 8, and the card slot 122 are electrically connected to the input / output I / F 107 of the control device 100, respectively. The X-direction origin sensor 118 is a sensor having a known configuration for setting the origin of the holding body 60 provided in the X-axis movement mechanism (not shown). The Y-direction origin sensor 119 is a sensor having a known configuration for setting the origin of the holding body 60 provided in the Y-axis movement mechanism (not shown). The start switch 121 is a pedal-type switch that is installed below the table 95 and connected to the control device 100 with a cord. The operator depresses the activation switch 121 when starting various operations (for example, sewing processing) of the sewing machine 1. The operation panel 8 is as described above. The card slot 122 has an insertion slot (not shown) for inserting a memory card (not shown), and writes information to the memory card inserted into the insertion slot and reads information from the memory card. Equipment. The memory card is, for example, a CF card or an SD card.

  As shown in FIG. 3, the operation terminal 30 includes a control device 300, a liquid crystal display (hereinafter referred to as LCD) 32, and a key group 33. The control device 300 includes a CPU 301, ROM 302, RAM 303, time information unit 304, input / output I / F 306, communication I / F 307, and drive circuit 308. The CPU 301, ROM 302, RAM 303, and time information unit 304 are electrically connected to the input / output I / F 306 via the bus 305. The drive circuit 308 is electrically connected to the input / output I / F 306. The drive circuit 308 is electrically connected to the LCD 32. The key group 33 is electrically connected to the input / output I / F 306.

  The CPU 301 controls the operation terminal 30 and executes processes such as image display on the LCD 32 and input reception from the key group 33 according to various programs stored in the ROM 302 and data transmitted by the sewing machine 1. The RAM 303 temporarily stores calculation results of the CPU 301, pointers, counters, and the like. The time information unit 304 is configured by a clock that records the date and time. The communication I / F 307 is electrically connected to the input / output I / F 306. The communication I / F 307 is an interface for serial communication, for example. The operation terminal 30 is connected to the sewing machine 1 via the communication I / F 307. The LCD 32 displays various information as images. The key group 33 is for the operator to input various information and instructions. The key group 33 includes four-way arrow keys, numeric keys, function keys, and the like.

  A log creation control process executed by the CPU 101 will be described with reference to FIGS. When the power of the sewing machine 1 is turned on, the CPU 101 reads a log creation control program from the ROM 102 and executes this processing. First, the CPU 101 initializes the count value of the interval counter 105 stored in the RAM 103 to zero, and starts counting every 0.1 second (S1). Since the CPU 101 does not know the power-on time, as shown in the information 1 of FIG. 8, the event occurrence time is temporarily set to 0:00:00 and is associated with the event content “power-on” in the RAM 103. Store as temporary log information (S2). As shown in FIG. 7, “00:00:00” corresponds to zero which is the count value of the interval counter 105 initialized in S1.

  When the power is turned on, the CPU 101 executes an opening process for opening a communication line via the cable 9 with the operation terminal 30. The communication connection method is not limited. For example, in the case of communication by TCP connection, transmission / reception confirmation based on the sequence number is required. The opening process is completed when the initial values of the sequence numbers are notified to each other and it is confirmed that the sequence numbers of both parties have been correctly transmitted to the other party.

  The CPU 101 determines whether or not the communication line has been opened (S3). Until the communication line is opened (S3: NO), the CPU 101 stands by. When the communication line is opened (S3: YES), the CPU 101 transmits a time information request signal to the operation terminal 30 (S4). The time information request signal is a signal for requesting the operation terminal 30 to output time information. When receiving the time information request signal, the CPU 301 (see FIG. 3) of the operation terminal 30 acquires the time information from the time information unit 304 and outputs it to the sewing machine 1 side together with the response signal.

  The CPU 101 determines whether time information has been received from the operation terminal 30 (S5). When the time information is received (S5: YES), the CPU 101 determines whether the reception is the first reception (S6). The determination as to whether or not it is the first reception can be made using a flag, for example. In this case, the flag is stored in the RAM 103. For example, the CPU 101 can easily determine that the subsequent reception is not the first time by initializing and turning off the flag when the power is turned on and turning it on at the first reception.

  In the case of the first reception (S6: YES), the CPU 101 temporarily stores the count value of the interval counter 105 at the time of reception (hereinafter referred to as a received clock value) in the RAM 103 (S7). For example, in the example shown in FIG. 7, the count value of the interval counter 105 at the time of receiving time information is “15”, so the CPU 101 temporarily stores “15” as a received clock value in the RAM 103.

The CPU 101 corrects the count value of the interval counter 105 to a count value indicating the received time (S8). As described above, since the interval counter 105 is a counter that counts 1 every 0.1 second, 1 second corresponds to 10 (count value), and 1 minute corresponds to 600 (count value). When the received time information is “8:30:25”, the count value of the interval counter 105 can be converted as follows.
“8 o'clock” = 8 × 60 (minutes) × 600 = 288000 (1)
“30 minutes” = 30 (minutes) × 600 = 18000 (2)
“25 seconds” = 25 (seconds) × 10 = 250 (3)
The count value of the interval counter 105 corresponding to the time “8:30:25” is “306250” which is the sum of the above (1), (2), and (3). Therefore, the CPU 101 corrects the count value “15” of the interval counter 105 to “306250” (see FIG. 7) and stores it in the RAM 103. Thereafter, the CPU 101 uses the interval counter 105 to count 1 from “306250” every 0.1 second. Therefore, the interval counter 105 can measure an accurate time every 0.1 second. Next, the CPU 101 executes temporary log information processing (S9).

  The temporary log information processing will be described with reference to FIG. First, the CPU 101 reads the first line of temporary log information stored in the RAM 103 (S21). In the information 1 shown in FIG. 8, the first line of the temporary log information is “00:00:00”. The CPU 101 obtains a difference between the received clock value temporarily stored in the RAM 103 and a value obtained by converting the time information of the temporary log information into a count value, and subtracts it from the count value of the interval counter 105 when the time information is received (S22). ). The received clock value stored in the RAM 103 is 15. The value representing the time information of the temporary log information as a count value is zero. The difference is 15-0 = 15. The count value obtained by subtracting the difference “15” from the count value “306250” of the interval counter 105 when receiving the time information is “306235”.

  The CPU 101 converts “306235” obtained by subtraction into time. Since the interval counter 105 counts once every 0.1 second, it becomes “8: 30: 23.50”. Therefore, the CPU 101 sets “8: 30: 23: 50” as the power-on time, and writes it as log information in the nonvolatile memory 104 as shown in the information 2 of FIG. 8 together with the event “power-on” (S23). ). Since the log information is stored in the nonvolatile memory 104, the log information is not lost even when the sewing machine 1 is turned off.

  The CPU 101 determines whether or not all lines have been processed for temporary log information (S24). If there is a second or subsequent line (S24: NO), the CPU 101 reads the next line of the temporary log information (S25), returns to S22, and repeats the process. When all the rows have been processed (S24: YES), the CPU 101 ends the temporary log information processing, and advances the processing to S12 in FIG.

  As shown in FIG. 5, the CPU 101 determines whether an event has occurred in the sewing machine 1 (S12). Events include, for example, “sewing start”, “sewing end”, “pattern change”, “error”, “pattern creation start”, “pattern creation end”, “power off”, and the like. The occurrence of the “sewing start” event occurs when the operator depresses the start switch 121. The “sewing end” event occurs when the sewing process based on the sewing data is completed. The occurrence of each event of “pattern change”, “pattern creation start”, and “pattern creation end” occurs when the operator operates the operation panel 8 and inputs each instruction. The occurrence of an “error” event occurs when an error occurs in the sewing machine 1 during processing based on various programs stored in the ROM 102. The occurrence of a “power off” event occurs when the operator instructs the power off. For example, when a sewing start event occurs in the sewing machine 1 (S12: YES), it is determined whether time information has already been received from the operation terminal 30 (S13). This determination may be made based on whether or not the received clock value is stored in the RAM 103, for example. If the time information has not been received yet, or if the time information has not been received correctly (S13: NO), the CPU 101 does not know the current time, so the event content is displayed together with the count value of the interval counter 105 when the event occurs. The temporary log information is temporarily written in the RAM 103 (S16). The count value of the temporary log information is written into the nonvolatile memory 104 as log information in terms of time by the CPU 101 receiving time information later and executing the temporary log information processing described above.

  On the other hand, when the time information has already been received (S13: YES), the CPU 101 calculates the time from the count value of the interval counter 105 at the time of event occurrence (S14). When the time information has already been received, the count value is already corrected to the count value corresponding to the time. For example, if the count value of the interval counter 105 at the occurrence of the sewing start event is “307435”, the interval counter 105 counts once every 0.1 second, so the time is “8:32:23” 50. It becomes. The CPU 101 associates the event contents “sewing start” with the calculated time “8: 32: 23: 50”, and stores the log in the nonvolatile memory 104 as shown in information 3 in FIG. The information is written (S15).

  The CPU 101 determines whether there is an output request to the memory card (S17). The administrator of the sewing machine 1 can request output of log information stored in the nonvolatile memory 104 to the memory card by operating the operation panel 8. When there is no output request to the memory card (S17: NO), the CPU 101 advances the process to S19 described later. When there is an output request to the memory card (S17: YES), the CPU 101 executes writing to the memory card in which the log information of the nonvolatile memory 104 is inserted into the card slot 122 (S18). By reading log information written in a memory card using a PC, for example, the administrator can recognize various events occurring in the sewing machine 1 in time series, and can accurately analyze the operating amount of the sewing machine 1, the sewing work amount, and the like.

  The CPU 101 determines whether it is time to reconfirm the time (S19). The time for reconfirming the time may be set at an appropriate interval such as 1 hour or 2 hours from the previous time information acquisition time. If it is not time to reconfirm the time (S19: NO), the CPU 101 returns to S12 and continues to monitor events occurring in the sewing machine 1. The sewing machine 1 sequentially performs events such as sewing end, second sewing start, sewing end, pattern change,... Each time various events occur, the CPU 101 calculates the time based on the count value of the interval counter 105 when the various events occur (S14). If the time information has already been received (S13: YES), the calculation method is the same as the process of S14.

  For example, as shown in FIG. 7, if the count value at the end of sewing is “307758”, the time is “8:32:55” 80. If the count value at the start of the second sewing is “308103”, the time is “8:33:30”. If the count value at the end of sewing is “308426”, the time is “8:34:02 60”. If the count value at the time of pattern change is “309090”, the time is “8:35:09 seconds 00”.

  The CPU 101 associates the event content with the calculated time, and writes it to the log information in the nonvolatile memory 104 as needed (S15). As shown in FIG. 8, the log information is information 4 at the end of sewing, information 5 at the start of the second sewing, information 6 at the end of sewing, and information 7 at the time of pattern change.

  On the other hand, if it is time to reconfirm the time (S19: YES), the CPU 101 returns the process to S3 shown in FIG. 4 and if the communication line is open (S3: YES), requests time information from the operation terminal 30. And re-acquiring (S4, S5). Since the time information is not received for the first time (S6: NO), the CPU 101 corrects the count value of the interval counter 105 so as to be a count value indicating the reacquired time (S10), and stores it in the RAM 103. Thereafter, the CPU 101 counts 1 every 0.1 second from the count value newly stored in the RAM 103 using the interval counter 105. As described above, since the CPU 101 can periodically correct the count value representing the time, the log information can be created at an accurate time. Thereafter, the CPU 101 can continue the log creation control process until the power of the sewing machine 1 is turned off to create log information and store it in the nonvolatile memory 104.

  In the above description, the interval counter 105 corresponds to the counting means of the present invention, the CPU 101 that executes the processing of S1 corresponds to the counting start means of the present invention, the cable 9 corresponds to the communication means of the present invention, S4, The CPU 101 that executes the process of S5 corresponds to the acquisition unit of the present invention, the CPU 101 that executes the process of S8 corresponds to the correction unit of the present invention, and the CPU 101 that executes the process of S12 serves as the first determination unit of the present invention. The CPU 101 that executes the processes of S14 and S15 corresponds to the storage means of the present invention, the CPU 101 that executes the process of S18 corresponds to the output means of the present invention, and the CPU 101 that executes the process of S13 corresponds to the present invention. A CPU 101 that corresponds to the second determination means and that executes the processing of S16 corresponds to the count value temporary storage means of the present invention and that executes the processing of S21 to S22. 101 corresponds to the second calculating means of the present invention, CPU 101 executing the processing in S3 is equivalent to the communication determination means of the present invention.

  The process of S1 corresponds to the counting start process and the counting start step of the present invention, the processes of S4 and S5 correspond to the acquiring process and the acquiring step of the present invention, and the process of S8 corresponds to the correcting process and the correcting step of the present invention. The process of S12 corresponds to the determination process and the determination step of the present invention, the processes of S14 and S15 correspond to the storage process and the storage step of the present invention, and the process of S18 corresponds to the output process and the output step of the present invention. To do.

  As described above, the sewing machine 1 of the present embodiment can detect an event that occurs in the sewing machine 1 and create log information that records the time of occurrence together with the content of the event. The event is, for example, sewing start, sewing end, or the like. The sewing machine 1 includes an interval counter 105. The interval counter 105 is a counter that counts 1 every 0.1 second after the power is turned on. The sewing machine 1 is turned on and receives time information from the operation terminal 30 after communication with the operation terminal 30 is established. The sewing machine 1 corrects the count value of the interval counter 105 at the time of reception so as to correspond to the time at the time of reception. Thereafter, whenever the sewing machine 1 detects an event, the time indicated by the count value of the interval counter 105 is set as the occurrence time, and log information associated with the event content is stored in the nonvolatile memory 104 as needed. The sewing machine 1 only needs to acquire time information once, and thereafter, log information can be created based on the time represented by the corrected count value, so that it is not necessary to have a clock function. Therefore, if the sewing machine 1 has a communication function with the outside, log information in which the time is associated with the content of the event that has occurred in the sewing machine 1 can be created. Therefore, the manager can perform production management of the sewing machine 1 accurately.

  Further, in the above-described embodiment, when the time information is not yet acquired at the time of event detection, the count value of the interval counter 105 at the time of occurrence of the event is temporarily stored in the RAM 103 as temporary log information. Thereafter, when the time information is acquired, the sewing machine 1 calculates a corresponding time corresponding to the count value of the temporary log information based on the acquired time information and the count value of the temporary log information, and stores it in the nonvolatile memory 104 as log information. Remember. Therefore, the sewing machine 1 can obtain the occurrence time of the event that occurred before receiving the time information retrospectively.

  Further, in the above embodiment, the operation of the interval counter 105 is started at the start-up when the sewing machine 1 is turned on. Therefore, the sewing machine 1 can create log information paired with time information from the time of starting the sewing machine 1.

  Moreover, since the time information is received from the operation terminal 30 after communication with the operation terminal 30 which is an external device is opened in the above embodiment, the time information can be acquired reliably and accurately.

  The present invention can be variously modified in addition to the above-described embodiment. In the log creation control process (see FIGS. 4 and 5) of the above embodiment, the count value is temporarily stored as temporary log information if the time information has not yet been received when the event occurs. For example, the sewing machine 1 is sewn. If the time information has not been received when the start event occurs, an error notification may be issued and the sewing operation may be started without starting. The modification will be described next.

  A modification of the log creation control process executed by the CPU 101 will be described with reference to FIG. The modified example is different from each of the processes shown in FIGS. 4 and 5 of the above embodiment only in part, and the other parts are common, so that different parts will be mainly described.

  After the power of the sewing machine 1 is turned on, the CPU 101 performs the same processing as S1 to S10 in FIG. 4, and then determines whether an event has occurred in the sewing machine 1 (S12). As shown in FIG. 9, when the event occurrence of the sewing machine 1 is detected (S12: YES), the CPU 101 determines whether or not the content of the event is the start of sewing (S31). When the event is other than the sewing start (S31: NO), the CPU 101 calculates the occurrence time from the count value of the interval counter 105 at the time of event occurrence and stores it in the nonvolatile memory 104 as log information, as in the above embodiment. (S13 to S15).

  On the other hand, when the content of the event is the start of sewing (S31: YES), the CPU 101 determines whether or not the time information has been received (S32). This determination may be made based on whether or not the received clock value is stored in the RAM 103, for example, as in S13. If the time information has already been received (S32: YES), the CPU 101 calculates the time from the count value of the interval counter 105 at the time of the sewing start event (S33), and the event content is non-volatile as log information along with the time. Writing to the memory 104 (S34), sewing is started and sewing processing is executed (S35).

  On the other hand, when the time information has not been received yet (S32: NO), the CPU 101 prohibits the start of sewing and performs error notification using voice, display, light emitting means, or the like (S36) to deal with the administrator. Prompt. The CPU 101 returns the process to S32 and repeats the process. Therefore, the sewing machine 1 can be prevented from operating without time information in a situation where production management is performed. The administrator can handle the error by turning off the power of the sewing machine 1.

  In the above modification, the CPU 101 that executes the process of S35 corresponds to the control means of the present invention, and the CPU 101 that repeats the processes of S32: NO, S36 corresponds to the prohibition means of the present invention.

  The present invention can be variously modified in addition to the above-described modified examples. In the above embodiment, the portable operation terminal 30 has been described as an example of the external device that outputs the time information to the sewing machine 1. However, a stationary PC, a notebook PC, a tablet, a smartphone, or the like may be used. Any device that can output can be used. Further, not only the cable 9 but also any communication means such as an internet line and a RAN line can be used as the communication means.

  In the above embodiment, in the processing shown in FIGS. 4 and 5, when the time for reconfirming the time comes (S19: YES), the time information is reacquired (S4, S5), and the inside of the sewing machine 1 is acquired. Although the count value is corrected (S10), the process of the time reconfirmation time in S19 may be omitted.

  In the above embodiment, the temporary log information is stored in the RAM 103, but may be stored in the nonvolatile memory 104. However, in that case, it is necessary to delete the temporary log information stored in the nonvolatile memory 104.

  In the log information creation control process (FIGS. 4 and 5) of the above embodiment, the processes of S17 and S18 are executed because the log information is written to the card. However, these processes may be omitted. Good. The log information creation control process includes a process for displaying the log information stored in the nonvolatile memory 104 on various displays such as the display of the operation panel 8 and the LCD 32 according to the operation of the operation panel 8 or the operation terminal 30. May be added. Furthermore, processing for displaying the current time on various displays such as the display of the operation panel 8 and the LCD 32 according to the operation of the operation panel 8 or the operation terminal 30 may be added.

  In addition, as an example of an event that occurs in the sewing machine 1 in the above-described embodiment, for example, creation of sewing data may be added, and may be stored in the nonvolatile memory 104 as log information together with the creation time of the sewing data.

1 sewing machine 8 operation panel 9 cable 30 operation terminal 101 CPU
103 RAM
104 Non-volatile memory 105 Interval counter

Claims (7)

In sewing machines that can detect the occurrence of events related to the sewing machine,
Counting means for counting at regular intervals;
Counting start means for starting the operation of the counting means;
Communication means for communicating with the outside of the sewing machine;
An acquisition means for acquiring time information from outside the sewing machine via the communication means after the operation start of the counting means by the counting start means;
Correction means for correcting the count value of the counting means to represent time based on the time information acquired by the acquiring means;
First determination means for determining whether or not the occurrence of the event is detected;
When the first determination unit determines that the occurrence of the event has been detected, the time represented by the count value corrected by the correction unit is set as the generation time, and the information associated with the content of the event is stored in the memory as log information. Storage means for storing;
A sewing machine comprising: the storage means; and output means for outputting the log information stored in the memory. When the first determination means determines that the occurrence of the event has been detected, the second determination means determines whether the acquisition means has already acquired the time information;
Count value temporary storage means for storing the count value at the time of detection of the occurrence of the event when the second determination means determines that the acquisition means has not acquired the time information;
A second calculating unit that calculates a corresponding time corresponding to the count value stored in the count value temporary storage unit based on the time information and the count value when the acquiring unit acquires the time information;
With
The storage means
2. The sewing machine according to claim 1, wherein information associating the corresponding time calculated by the second calculating means with the contents of the event is stored in the memory as the log information. The event includes a sewing start operation,
Control means for controlling the sewing operation of the sewing machine in accordance with the sewing start operation;
Prohibition of prohibiting the start of the sewing operation by the control unit until the acquisition unit acquires the time information when the second determination unit determines that the acquisition unit has not acquired the time information The sewing machine according to claim 2, further comprising means.   The sewing machine according to any one of claims 1 to 3, wherein the counting start means starts the operation of the counting means when the sewing machine is activated. A communication determining means for determining whether or not communication with the outside of the sewing machine via the communication means is possible;
The acquisition means includes
5. The sewing machine according to claim 4, wherein after the sewing machine is started, the time information is acquired at least after the time when the communication determining unit determines that communication with the outside of the sewing machine is possible. In a sewing machine control method capable of detecting the occurrence of an event related to the sewing machine,
A counting start step for starting the operation of the counting means for counting every certain time;
An acquisition step of acquiring time information from outside the sewing machine via a communication unit after the operation start of the counting unit in the counting start step;
Based on the time information acquired in the acquisition step, a correction step for correcting the count value of the counting means to represent time,
A determination step of determining whether or not the occurrence of the event is detected;
When it is determined that the occurrence of the event is detected in the determination step, the time represented by the count value corrected in the correction step is used as the generation time, and information associated with the content of the event is stored in the memory as log information. Memory process;
An output method for outputting the log information stored in the memory in the storage step. A sewing machine control program for causing a computer of a sewing machine capable of detecting the occurrence of an event relating to the sewing machine to execute the machine,
A counting start step for starting the operation of the counting means for counting at regular intervals;
An acquisition step of acquiring time information from outside the sewing machine via a communication unit after the operation start of the counting unit in the counting start step;
Based on the time information acquired in the acquisition step, a correction step for correcting the count value of the counting means to represent time,
A determination step of determining whether or not the occurrence of the event is detected;
If it is determined that the occurrence of the event is detected in the determination step, the time represented by the count value corrected in the correction step is used as the generation time, and information associated with the content of the event is stored in the memory as the log information. A memory step to
An output step of outputting the log information stored in the memory in the storage step. A sewing machine control program for causing a computer of the sewing machine to execute the program.

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