Information processing system and laser oscillator having the same

Abstract

To enable a microcomputer to perform normal shutdown, even if power supply is suddenly stopped.SOLUTION: An information processing / communication control board 5 having a microcomputer 51 for executing an operation system is provided with a DC / DC converter 53 for a microcomputer for performing power conversion on power supplied from a power source unit 4, and supplying the converted power to the microcomputer 51, and a super capacitor 55 for supplying the power to the DC / DC converter 53 for the microcomputer when the power supply from the power source unit 4 is stopped. The microcomputer 51 is shut down in response to a predetermined power source supply stop signal S1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to an information processing system including a microcomputer and a laser oscillator including the same. [Background technology]

[0002] Patent Document 1 discloses a technique for saving data being processed in a storage means when the power supply to a central processing unit is cut off. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 62-143153 Summary of the Invention [Problem to be solved by the invention]

[0004] In an information processing system equipped with a microcomputer that runs an operating system, if the power supply to the microcomputer is suddenly stopped when the power switch is turned off, during a power outage, etc., the microcomputer will not be able to perform a shutdown that safely terminates the software in operation, which may result in file corruption, startup failure, and other problems.

[0005] The present disclosure has been made in view of the above-mentioned points, and an object of the present disclosure is to enable a microcomputer to perform a normal shutdown even if the power supply is suddenly stopped. [Means for solving the problem]

[0006] In order to achieve the above object, the present disclosure provides an information processing system having a microcomputer that executes an operating system, comprising: a DC / DC converter for a microcomputer that performs power conversion on power supplied from a main power source and supplies the power to the microcomputer; and a capacitor that supplies power to the DC / DC converter for a microcomputer when power supply from the main power source is stopped, wherein the microcomputer shuts down in response to a predetermined power supply stop signal.

[0007] As a result, even if the power supply from the main power source suddenly stops, the microcomputer can be shut down using the power from the capacitor by inputting a power supply stop signal to the microcomputer. Effect of the Invention

[0008] According to the present disclosure, even if the power supply from the main power source is suddenly stopped, the microcomputer can be caused to perform an orderly shutdown. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram showing a schematic configuration of a laser processing system. [Diagram 2] FIG. 2 is a block diagram showing a configuration of an information processing and communication control board as an information processing system according to an embodiment of the present invention. [Diagram 3] FIG. 3 is a functional block diagram of the information processing and communication control board. [Figure 4] FIG. 4 is a flowchart showing the operation of the power supply control block of the information processing and communication control board. [Diagram 5] FIG. 5 is a diagram equivalent to FIG. 2, showing the state of power supply and signals when power is being supplied by the power supply unit. [Figure 6] FIG. 6 is a diagram equivalent to FIG. 5 immediately after the power supply from the power supply unit is stopped. [Figure 7] FIG. 7 is a diagram equivalent to FIG. 5 when power supply to the peripheral circuits is stopped. [Figure 8] FIG. 8 is a diagram equivalent to FIG. 5 when the power supply to the microcomputer is stopped. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely illustrative in nature and is not intended to limit the present invention, its application, or its uses.

[0011] 1 shows a laser processing system 1 according to an embodiment of the present disclosure. The laser processing system 1 includes a monitoring computer 2 and a plurality of laser oscillators 3 used for laser processing.

[0012] The monitoring computer 2 transmits and receives information to and from a plurality of laser oscillators 3 .

[0013] Each laser oscillator 3 includes a power supply unit 4 as a main power supply, an information processing / communication control board 5 as an information processing system, a power switch 6, and other boards (not shown).

[0014] The power supply unit 4 converts AC power sent from the external AC power source 7 into DC power and supplies it to the information processing and communication control board 5 and other boards not shown. The power supply unit 4 also outputs a power supply stop signal S1 indicating the presence or absence of a power supply abnormality to the information processing and communication control board 5. When there is no power supply abnormality, the power supply unit 4 sets the power supply stop signal S1 to a low level. On the other hand, when there is a power supply abnormality such as the power switch 6 being turned off or AC power not being sent from the external AC power source 7 due to a power outage or the like, the power supply unit 4 stops the power supply to the information processing and communication control board 5 and sets the power supply stop signal S1 to a high level. Thus, in this embodiment, when there is no power supply abnormality, the power supply stop signal S1 is set to a low level, and when there is a power supply abnormality, the power supply stop signal S1 is set to a high level. However, on the contrary, when there is no power supply abnormality, the power supply stop signal S1 may be set to a high level, and when there is a power supply abnormality, the power supply stop signal S1 may be set to a low level.

[0015] As shown in FIG. 2, the information processing / communication control board 5 has a microcomputer 51, a peripheral circuit 52, a DC / DC converter 53 for the microcomputer, a DC / DC converter 54 for the peripheral circuit, a supercapacitor 55 as a capacitor, and a board body 56.

[0016] The microcomputer 51 executes an operating system. The operating system executed is Linux (registered trademark). The microcomputer 51 also transmits and receives information related to laser processing to and from devices external to the laser oscillator 3. The external device with which the microcomputer 51 transmits and receives information is, for example, the monitoring computer 2. Note that the microcomputer 51 may only transmit or receive information related to laser processing to and from devices external to the laser oscillator 3.

[0017] Furthermore, the microcomputer 51 receives the power supply stop signal S1. Based on this power supply stop signal S1, the microcomputer 51 outputs a microcomputer power supply control signal S2 and a peripheral circuit power supply control signal S3.

[0018] The microcomputer 51 uses a peripheral circuit 52 to collect information through communication with boards other than the information processing and communication control board 5, and to store the collected information.

[0019] The microcomputer DC / DC converter 53 has a microcomputer power input terminal 53a that receives DC power supplied by the power supply unit 4 and DC power supplied by the supercapacitor 55. When the microcomputer power control signal S2 is at a high level, the microcomputer DC / DC converter 53 performs power conversion on the DC power supplied to the microcomputer power input terminal 53a and supplies the converted power to the microcomputer 51. When the microcomputer power control signal S2 is at a low level, the microcomputer DC / DC converter 53 stops the power supply to the microcomputer 51. In this manner, in this embodiment, when the microcomputer power control signal S2 is at a high level, the microcomputer DC / DC converter 53 supplies power to the microcomputer 51, and when the microcomputer power control signal S2 is at a low level, the microcomputer DC / DC converter 53 stops the power supply to the microcomputer 51. However, on the contrary, when the microcomputer power control signal S2 is at a low level, the microcomputer power supply may be supplied to the microcomputer 51, and when the microcomputer power control signal S2 is at a high level, the power supply to the microcomputer 51 may be stopped.

[0020] The DC / DC converter 54 for the peripheral circuit has a peripheral circuit power input terminal 54a that receives DC power supplied by the power supply unit 4 and DC power supplied by the supercapacitor 55. When the peripheral circuit power control signal S3 is at a high level, the DC / DC converter 54 for the peripheral circuit performs power conversion on the DC power supplied to the peripheral circuit power input terminal 54a and supplies the converted power to the peripheral circuit 52. When the peripheral circuit power control signal S3 is at a low level, the DC / DC converter 54 for the peripheral circuit stops supplying power to the peripheral circuit 52. Thus, in this embodiment, when the peripheral circuit power control signal S3 is at a high level, power is supplied to the peripheral circuit 52, and when the peripheral circuit power control signal S3 is at a low level, power supply to the peripheral circuit 52 is stopped. However, conversely, when the peripheral circuit power control signal S3 is at a low level, power is supplied to the peripheral circuit 52, and when the peripheral circuit power control signal S3 is at a high level, power supply to the peripheral circuit 52 may be stopped.

[0021] The supercapacitor 55 is connected to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54 so as to supply DC power to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54 when the power supply from the power supply unit 4 is stopped. Specifically, the supercapacitor 55 is connected to the microcomputer DC / DC converter 53 and the peripheral circuit DC / DC converter 54 so that a current flows from the supercapacitor 55 to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54 when the voltage of the output terminal of the power supply unit 4 drops below a predetermined value.

[0022] On one surface of the substrate body 56, the microcomputer 51, the peripheral circuit 52, the DC / DC converter 53 for the microcomputer, the DC / DC converter 54 for the peripheral circuit, and the supercapacitor 55 are arranged.

[0023] The power switch 6 turns on and off the supply of AC power to the power supply unit 4 by user operation. Therefore, the power supply from the power supply unit 4 to the information processing / communication control board 5 is also turned on and off by the power switch 6. The power switch 6 is formed of, for example, a breaker.

[0024] FIG. 3 shows a functional block diagram of the information processing and communication control board 5.

[0025] The information processing and communication control board 5 includes a laser oscillator information collection block 501 , a laser oscillator information storage block 502 , a laser oscillator information distribution block 503 , a communication control block 504 , a power supply control block 505 , and an operating system execution block 506 .

[0026] The laser oscillator information collection block 501 collects information by communicating with other boards (not shown) in the laser oscillator 3 .

[0027] The laser oscillator information storage block 502 processes the information collected by the laser oscillator information collection block 501, and stores the processed information in an internal storage.

[0028] The laser oscillator information distribution block 503 processes the information collected by the laser oscillator information collection block 501 and distributes the processed information to the external monitoring computer 2 .

[0029] The communication control block 504 controls various communications during collection and distribution of information.

[0030] The power supply control block 505 monitors and controls the power supply state of the information processing and communication control board 5 .

[0031] The operating system execution block 506 executes the operating system.

[0032] FIG. 4 shows the operation of the power supply control block 505 of the information processing / communication control board 5 configured as described above.

[0033] First, in S101, the power switch 6 is turned on.

[0034] Next, in S102, the microcomputer 51 starts up. In the initial state, the microcomputer 51 sets the microcomputer power supply control signal S2 and the peripheral circuit power supply control signal S3 to a high level.

[0035] Next, in S103, the microcomputer 51 determines whether or not a power supply abnormality has been detected by the power supply unit 4 based on the power supply stop signal S1. If the power supply stop signal S1 is at a low level, the microcomputer 51 determines that there is no power supply abnormality, and executes the process of S103 again. On the other hand, if the power supply stop signal S1 is at a high level, the microcomputer 51 determines that there is a power supply abnormality, and proceeds to the process of S104.

[0036] In S104, the microcomputer 51 controls the DC / DC converter 54 for peripheral circuits so as to stop the power supply to the peripheral circuit 52. That is, the microcomputer 51 sets the peripheral circuit power supply control signal S3 to a low level.

[0037] Thereafter, in S105, the microcomputer 51 starts a shutdown to safely terminate running software such as the operating system (OS).

[0038] Next, in S106, the microcomputer 51 determines whether or not the shutdown is complete. If the microcomputer 51 determines that the shutdown is not complete, the microcomputer 51 executes the process of S106 again. On the other hand, if the microcomputer 51 determines that the shutdown is complete, the microcomputer 51 proceeds to the process of S107.

[0039] After the shutdown, in S107, the microcomputer 51 controls the microcomputer DC / DC converter 53 to stop the power supply to the microcomputer 51. That is, the microcomputer 51 sets the microcomputer power supply control signal S2 to a low level.

[0040] Next, in S108, the operation of the information processing and communication control board 5 stops.

[0041] In the information processing / communication control board 5 configured as described above, after the power switch 6 is turned on, DC power is supplied from the power supply unit 4 to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54, as shown in Fig. 5, until a power supply abnormality occurs. The microcomputer DC / DC converter 53 performs power conversion on the DC power supplied from the power supply unit 4 and supplies it to the microcomputer 51. The peripheral circuit DC / DC converter 54 performs power conversion on the DC power supplied from the power supply unit 4 and supplies it to the peripheral circuit 52. Note that the microcomputer power supply control signal S2 and the peripheral circuit power supply control signal S3 are set to high level when the power is on.

[0042] In the state of Fig. 5, if a power supply abnormality occurs, such as when the power switch 6 is turned off or when AC power is not supplied from the external AC power supply 7 due to a power outage or the like, the power supply from the power supply unit 4 stops as shown in Fig. 6, and the voltage of the output terminal of the power supply unit 4 drops to a predetermined value or lower. As a result, a current flows from the supercapacitor 55 to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54. In other words, the supercapacitor 55 supplies DC power to the microcomputer power input terminal 53a of the microcomputer DC / DC converter 53 and the peripheral circuit power input terminal 54a of the peripheral circuit DC / DC converter 54. In addition, the power supply unit 4 sets the power supply stop signal S1 to a high level.

[0043] Then, in response to the high-level power supply stop signal S1, the microcomputer 51 controls the DC / DC converter 54 for peripheral circuits to stop the power supply to the peripheral circuit 52, as shown in FIG. 7. That is, the microcomputer 51 sets the peripheral circuit power supply control signal S3 to a low level. This stops the power supply from the DC / DC converter 54 for peripheral circuits to the peripheral circuit 52. After that, the microcomputer 51 performs a shutdown to safely terminate running software such as an operating system (OS) using power from the supercapacitor 55. In this way, even if the power supply from the power supply unit 4 suddenly stops, the microcomputer 51 can perform a shutdown using power from the supercapacitor 55 in response to the high-level power supply stop signal S1. Therefore, problems such as file corruption and startup failure due to an inability to perform a normal shutdown can be prevented. In addition, since the microcomputer 51 stops the power supply from the DC / DC converter 54 for peripheral circuits to the peripheral circuit 52 before the shutdown, the time for which power is supplied from the supercapacitor 55 to the microcomputer 51 can be extended compared to when the power supply is not stopped.

[0044] When the microcomputer 51 completes the shutdown, as shown in FIG. 8, it controls the microcomputer DC / DC converter 53 to stop the power supply to the microcomputer 51. That is, the microcomputer 51 sets the microcomputer power supply control signal S2 to a low level. This stops the power supply from the microcomputer DC / DC converter 53 to the microcomputer 51. In this way, the microcomputer 51 controls the microcomputer DC / DC converter 53 to stop the power supply, so that it is possible to prevent a problem caused by the next startup of the operating system in a state in which the microcomputer 51 continues to operate due to the charge remaining in the supercapacitor 55. Therefore, it is possible to cause the microcomputer 51 to stably start up the next operating system.

[0045] In this embodiment, the operating system executed by the microcomputer 51 is Linux, but it may be another operating system.

[0046] In addition, in this embodiment, the power supply stop signal S1 is outputted from the power supply unit 4, but it may be outputted from another board. [Industrial Applicability]

[0047] The information processing system and laser oscillator equipped with the same disclosed herein are useful as an information processing system equipped with a microcomputer and a laser oscillator equipped with the same, because the microcomputer can perform a normal shutdown even if the power supply is suddenly stopped. [Explanation of symbols]

[0048] 2. Monitoring computer (external device) 3 Laser Oscillator 4 Power supply unit (main power supply) 5. Information processing and communication control board (information processing system) 6 Power Switch 51 Microcomputer 52 Peripheral circuits 53 DC / DC converter for microcontrollers 54 DC / DC converter for peripheral circuits 55 Supercapacitor (Capacitor) S1 Power supply stop signal

Claims

1. 1. An information processing system having a microcomputer that executes an operating system, a microcomputer DC / DC converter that converts power supplied from a main power supply into power for supply to the microcomputer; a capacitor for supplying power to the microcomputer DC / DC converter when the power supply from the main power source is stopped; The information processing system according to the present invention, wherein the microcomputer shuts down in response to a predetermined power supply interruption signal.

2. 2. The information processing system according to claim 1, An information processing system, wherein power supply from a main power source to said information processing system is turned on and off by a power switch.

3. 2. The information processing system according to claim 1, Peripheral circuitry; a peripheral circuit DC / DC converter that converts the power supplied from the main power supply into power to supply to the peripheral circuit, the capacitor further supplies power to the DC / DC converter for peripheral circuits when the power supply from the main power supply is stopped; The information processing system is characterized in that the microcomputer controls the DC / DC converter for the peripheral circuits in response to the power supply stop signal so as to stop the power supply to the peripheral circuits, and then shuts down.

4. 2. The information processing system according to claim 1, The information processing system according to the present invention is characterized in that the microcomputer controls the microcomputer DC / DC converter so as to stop the power supply to the microcomputer after the microcomputer has been shut down in response to the power supply stop signal.

5. 2. The information processing system according to claim 1, 1. An information processing system, wherein the operating system is Linux.

6. A laser oscillator, An information processing system according to claim 2; The power switch is provided. The laser oscillator according to the present invention is characterized in that the microcomputer transmits and receives at least one of information relating to laser oscillation to and from an external device of the laser oscillator.

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