JP2011145804A - Transference detection function-equipped industrial machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transference detection function-equipped industrial machine allowing the proper decision of whether or not movement for illegal transference occurs, and allowing measures corresponding to illegality. <P>SOLUTION: The transference detection function-equipped industrial machine includes: a machine body having a work instrument performing work such as machining or measurement; an environmental variation detection means detecting an environmental variation of the machine body or the circumference of the machine body; an illegal transference decision means 7; and a processing means. The illegal transference decision means 7 decides that the machine body is illegally transferred based on a length of a time where a state after the environmental variation detected by the environmental variation detection means continues. The processing means disenables the work by the work instrument by a decision result that the machine body is illegally transferred. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an industrial machine with a relocation detection function having a function of detecting an illegal relocation such as a relocation that violates a law or contract obligation in an industrial machine such as a machine tool or a measuring instrument.

  High-precision, high-function machines are strictly required to manage illegal exports. In addition, there is a case where a machine manufacturer requests that installation is performed under a predetermined installation condition according to a contract. For this reason, various devices and methods for detecting unauthorized relocation have been proposed. Among them, one that detects relocation by vibration has been proposed (for example, Patent Document 1).

JP 2003-35595 A

  However, none of the conventional relocation detection devices have been able to properly determine unauthorized relocation. For example, when sensing vibrations, normal vibrations such as earthquakes, natural vibrations such as earthquakes, environmental vibrations exerted by peripheral devices and the surrounding environment are picked up evenly, and the vibrations are moved for unauthorized transfer. It was difficult to determine whether it was due to.

An object of the present invention is to provide an industrial machine with a relocation detection function that can appropriately determine whether or not a movement for unauthorized relocation has occurred, and can perform a measure corresponding to the unauthorized operation.
Another object of the present invention is to make it possible to more correctly determine whether or not the movement is for unauthorized relocation.

  The industrial machine with relocation detection function according to the present invention includes a machine body (1) having a work tool (4) for performing work such as machining or measurement, and environmental changes around the machine body (1) or the machine body (1). The environment change detection means (6) for detecting the movement and the unauthorized transfer determination for determining that the machine body is illegally transferred based on the length of time that the state after the environment change detected by the environment change detection means (6) continues. Means (7) and processing means (8) for disabling or restricting the work by the work implement (4) according to the result of the unauthorized transfer determination by the unauthorized transfer determination means (7).

  According to this configuration, the unauthorized relocation determining means (7) determines that the machine body (1) is illegally relocated based on the length of time that the state after the environmental change detected by the environmental change detecting means (6) continues. . For this reason, it is possible to appropriately determine whether or not movement for illegal movement has occurred, such as eliminating an accidental environmental change or detecting long-distance movement. The processing means (8) disables the work by the work implement (4) by a control such as prohibition of activation or other measures, or repeats the operation, when a determination result that it is an illegal move is obtained. The work by the work implement (4) is restricted by prohibiting the above.

In the present invention, the unauthorized relocation determination means (7) has a plurality of determination units (7a, 7b) that are determined by different criteria in a plurality of modes that are sequentially switched, and the plurality of determination units (7a, 7b). Among these, the determination unit (7a) has a plurality of determination units (7a) that perform determination based on the length of time that the state after the environmental change continues, and the determination unit (7a) that uses these durations as a reference, The determination unit to be executed later has a longer reference time, and each of the determination units (7a, 7b) proceeds to the next mode when determining that the reference is reached, and determines that the reference is not reached. In such a case, it is possible to return to the initial mode, and when the final determination unit (7a, 7b) determines that the standard has been reached, it may be determined that the transfer is illegal.
In this way, it is determined in multiple modes, and the determination unit to be executed later has a longer reference time, so it is possible to determine earthquakes, accidental environmental changes, environmental changes due to long-distance movement, etc. Therefore, it is possible to more correctly determine whether or not the movement is for an illegal relocation.

  In the present invention, a means for detecting vibration may be provided as the environment change detecting means (6). According to the vibration detecting means, the vibration associated with the relocation can be detected as the environmental change, and the environmental change associated with the relocation can be easily detected.

In the present invention, as the environment change detection means (6), there are a plurality of types of environment change detection means (6) having different types of environments to be detected, and the unauthorized transfer determination means (7) is an environment change detection means. (6) Unauthorized relocation is determined from the determination results of the type-specific unauthorized relocation determination unit (7A) and the plurality of type-specific unauthorized relocation determination units (7A). It is good also as having a comprehensive judgment part (7B) to do.
There are cases where it is difficult to detect whether or not an environmental change is caused by an illegal move with only one type of environmental change. However, by providing a plurality of types of environment change detection means (6) having different types of environments to be detected and comprehensively determining whether or not the movement is for illegal transfer, it is determined more correctly. be able to.

  The industrial machine with relocation detection function according to the present invention includes a machine main body having a work implement for performing work such as machining or measurement, environmental change detection means for detecting an environmental change around the machine main body or the machine main body, and the environmental change detection. Based on the length of time that the state after the change of the environment detected by the means continues, the unauthorized transfer determination means that determines that the machine body is illegally transferred, and the determination result that the unauthorized transfer is determined by the unauthorized transfer determination means Since the processing means for disabling or restricting the work by the work implement is provided, it is possible to appropriately determine whether or not the movement for the illegal transfer has occurred, and to perform the countermeasure corresponding to the illegal operation.

The unauthorized transfer determination means has a plurality of determination units that are determined based on different criteria in a plurality of modes that are sequentially switched, and the length of time during which the state after the environmental change continues is included in the plurality of determination units. The determination unit having a plurality of determination units that perform determination as a reference, the determination unit that is based on the length of the duration is determined to be longer as a determination unit to be executed later, each determination unit, If it is determined that the standard has been reached, the process proceeds to the next mode. If it is determined that the standard has not been reached, the process returns to the initial mode. If it is, it is possible to determine more correctly whether or not the movement is for illegal relocation.
When a means for detecting vibration is provided as the environment change detection means, it is possible to easily detect an environment change accompanying the relocation.

  As the environment change detection means, there are a plurality of types of environment change detection means having different types of environments to be detected, and the unauthorized transfer determination means is illegal transfer based on a standard defined for each type of environment change detection means. If there is a type-specific unauthorized transfer determination unit and a comprehensive determination unit that determines an illegal transfer from the determination results of the plurality of type-specific unauthorized transfer determination units, whether or not the movement is for illegal transfer Can be determined more correctly.

It is a block diagram which shows the conceptual structure of the industrial machine with a moving detection function which concerns on 1st Embodiment of this invention. It is a top view of an example of the machine body. It is a flowchart which shows the process example of the unauthorized transfer determination means. It is a block diagram which shows the conceptual structure of the industrial machine with a moving detection function which concerns on other embodiment of this invention.

  A first embodiment of the present invention will be described with reference to FIGS. This industrial machine with relocation detection function includes a machine body 1 and an unauthorized relocation detection device 5. The machine body 1 is a machine tool, various processing machines such as a semiconductor substrate manufacturing apparatus, or a measuring machine. The machine body 1 includes a machine body machine unit 2 having a work tool 4 for performing work such as machining or measurement, and a machine body control unit 3 for controlling the machine body machine unit 2. The “work” as used herein refers to machining or assembly. The machine body machine part 2 is a machine part of the machine body 1 divided into a machine part and a control equipment part, and the machine body machine part 2 is a control equipment part.

  FIG. 2 shows an example of a turret type lathe in which the machine body 1 is a machine tool. The machine body 2 in the machine body 1 shown in FIG. 1 includes a feed base 15 on which a spindle 11 is rotatably supported on a bed 9 via a spindle stock 10 and a turret-type tool post 13 is mounted in an indexable manner. However, it is installed on the bed 9 on the side of the headstock 10 so as to be able to advance and retract in two orthogonal axes. The feed base 15 is driven back and forth by drive sources 16 and 17 such as servo motors for each axis, and the main shaft 11 is driven to rotate by a drive source 18 such as a servo motor. The workpiece W gripped by the chuck 11 a at the tip of the spindle 11 is processed by a tool 14 such as a tool installed on the tool post 13. The main shaft 11, the tool post 13, the feed base 15, and the drive sources 16 to 18 are the work implement 4.

The machine main body control unit 3 includes a computer-type numerical control device and a programmable controller, and is mounted on or adjacent to the machine main body machine unit 2 or provided away from the machine main body machine unit 2.
The unauthorized transfer detection device 5 includes an electronic circuit including a microcomputer or the like, and is provided independently of the machine main body control unit 3 and installed in the machine main body machine unit 2 or the machine main body control unit 3. Is provided. The unauthorized transfer detection device 5 may use a computer of the machine main body control unit 3.

  In FIG. 1, the unauthorized transfer detection device 5 includes an environment change detection unit 6, an unauthorized transfer determination unit 7, and a processing unit 8. The environment change detection unit 6 is a unit that detects a change in the environment of the machine body 1 or the surroundings of the machine body 1. In this embodiment, the environment change detection unit 6 is a unit that detects vibration such as a vibration sensor including an acceleration sensor. The unauthorized transfer determination means 7 is a means for determining that the machine body 1 is illegally transferred based on the length of time that the state after the environmental change detected by the environmental change detection means 6 continues. The processing means 8 is means for disabling the work by the work implement 4 due to the result of the determination that the unauthorized transfer determination means 7 is an illegal transfer. The processing for disabling work by the work implement 4 includes, for example, control for prohibiting activation of the work implement 4 and processing for short-circuiting the circuit of the machine main body control unit 3 to damage it.

  The unauthorized transfer determination means 7 has a plurality of determination units 7a and 7b that are determined based on different criteria in a plurality of modes that are sequentially switched, and the state after the environmental change continues in the plurality of determination units 7a and 7b. A plurality of determination units 7a that perform the determination based on the length of time to be determined, and the determination unit 7a based on the length of the duration is determined to have a longer reference time as the determination unit is executed later. It is done. Each of the determination units 7a and 7b proceeds to the next mode when it is determined that the reference is reached, and returns to the initial mode when it is determined that the reference is not reached, and the unauthorized transfer determination means 7 performs the final determination unit 7a. , 7b is determined to be an illegal relocation.

  FIG. 3 shows a flowchart of processing performed by the unauthorized relocation determining means 7. This figure is an example when the environment change detection means 6 (FIG. 1) is a vibration detection means. First, it is determined whether or not the power of the machine main body 1 is off (S1). If the power is on, the standby mode (S16) is entered and the process ends and the process returns to the start. If the power is off, the vibration monitoring mode (S2) is entered, and if no vibration above the set level is detected in the vibration detection determination process (S3), the process ends and the process returns to the start. When vibration above the set level is detected, the monitoring delay mode (S5) is entered (S4).

  In the monitoring delay mode (S5), a process of inputting a predetermined dead time (for example, 2 minutes) a plurality of times over a predetermined time (for example, 10 minutes) for the output of the environment change detection means 6 including a vibration sensor. (Minute)) or a predetermined number of times, and during that time, it is determined whether or not a predetermined number of vibrations (for example, three times) determined to be relocated are detected (S6). This determination eliminates earthquakes and accidental vibrations from the requirements for relocation determination. If no vibration according to the criterion is detected, the process ends and returns to the start. If there is a vibration corresponding to the determination criterion, the next relocation monitoring mode (S8) is entered.

  In the determination process (S9) of the relocation monitoring mode (S8), after entering this mode, if a vibration detection signal of a certain level or more from the environment change detection means 6 is input even once within a predetermined time, The process moves to the relocation monitoring mode (S8) (S10). If there is no vibration detection signal, the process ends and returns to the start.

In the determination process (S12) of the relocation determination mode (S11), after entering this mode, it is monitored whether or not a signal satisfying a predetermined movement end condition is input before a predetermined reference time elapses. If a signal that satisfies the movement end condition is input, the process proceeds to the relocation determination mode (S14) (S13). If no signal that satisfies the movement end condition is input, the process ends and the process returns to the start. The signal that satisfies the movement end condition is, for example, a signal that indicates that power is input to the machine body 1. In addition, when the barometer is provided in addition to the vibration sensor as the environmental change detection means 6, a pressure increase signal of the barometer may be used as a signal that satisfies the above movement end condition.
Assuming illegal exports, the relocation will require several days (eg 3 days). Accordingly, even if the relocation determination mode (S11) is entered, it is determined that the relocation is not unauthorized if the power is turned on within a few days. Thereby, it can be determined whether or not the transfer is a long distance, and it can be excluded that the transfer is an illegal transfer in the case of a transfer within a factory. Note that when transporting by aircraft, the atmospheric pressure drops in the sky, and when landing, the atmospheric pressure rises. Therefore, the end of movement can also be detected by atmospheric pressure.
If the processing of the flowchart of FIG. 9 is followed, only unauthorized transfer can be determined.

  In the relocation decision mode (S14), the work by the work implement 4 is disabled, or the machine body 1 is restricted (S15). The process of limiting the machine body 1 is, for example, a process of prohibiting repeats, disabling an important M code, or allowing only a prototype depending on the degree. The above-described prohibition of repeat is, for example, a process of prohibiting the repeat of the numerical control program by the machine main body control unit 3, and the process of disabling the use of the above important M code is, for example, the process registered in the machine main body control unit 3. For example, the M code can no longer be used, or the data for controlling the registered M code is deleted.

  The means for performing each of the determination steps S3, S6, S9, and S12 in the flowchart of FIG. 3 are the determination units 7a and 7b of the unauthorized transfer determination means 7 in FIG. Among these, the means for performing the determinations in S6 and S12 is the determination part 7a based on the length of the duration, and the means for performing the other determination processes S3 and S9 is the other determination part 7b.

According to this industrial machine with a relocation detection function, the unauthorized relocation determination means 7 thus performs the illegal relocation of the machine body based on the length of time that the state after the environmental change detected by the environmental change detection means 6 continues. judge. For this reason, it is possible to appropriately determine whether or not movement for illegal movement has occurred, such as eliminating an accidental environmental change or detecting long-distance movement.
In particular, the determination unit 7a, which is determined in a plurality of modes and is executed later, has a longer reference time, thereby determining earthquakes, accidental environmental changes, environmental changes due to long-distance movement, etc. Therefore, it is possible to more correctly determine whether or not the movement is for an illegal relocation.

  FIG. 4 shows another embodiment of the present invention. In this embodiment, a plurality of types of environment change detection means 6 having different types of environments to be detected are provided as the environment change detection means 6. The unauthorized transfer determination means 7 is based on the determination results of the type-specific unauthorized transfer determination unit 7A that determines an unauthorized transfer based on the criteria set for each type of the environment change detection means 6, and the plurality of types of illegal transfer determination units 7A. And a general determination unit 7B that determines that the transfer is illegal. One of the environmental change detection means 6 is a means for detecting vibration such as a vibration sensor. Other environmental change detection means 6 include a detector that detects whether or not a radio clock is received or a frequency change, a detector that collects sound and determines whether or not a specific language is included, an external temperature detector, and an oxygen concentration detector It is possible to use one that detects salt concentration (when transported by ship), darkness detection, etc. (when transported by aircraft).

  A configuration that performs the processing shown in the flowchart of FIG. 3 is adopted for the type of unauthorized transfer determination unit 7A that is determined from the output of the environment change detection means 6 that is a vibration sensor. However, in order to enter the relocation determination mode (S14), determination by the comprehensive determination unit 7B is required. The overall determination unit 7B determines that the type of illegal transfer determination unit 7A is an illegal transfer when all of the types of illegal transfer determination unit 7A satisfy a condition that is a criterion for determination, or a part of the type of illegal transfer determination unit 7A. Even if the condition is unsatisfactory, the determination result of the plurality of types of illegal relocation determination units 7A may be comprehensively determined according to a predetermined standard to determine whether or not it is illegal relocation.

DESCRIPTION OF SYMBOLS 1 ... Machine main body 2 ... Machine main body machine part 3 ... Machine main body control part 4 ... Work implement 5 ... Unauthorized transfer detection device 6 ... Environmental change detection means 7 ... Unauthorized transfer determination means 7a, 7b ... Determination part 7A ... Unauthorized transfer by type Determination unit 7B ... Comprehensive determination unit 8 ... Processing means

Claims (4)

  The machine body having a work implement for performing work such as machining or measurement, the environment change detection means for detecting the environment change around the machine body or the machine body, and the state after the environment change detected by the environment change detection means continues. The operation by the work implement is disabled or restricted by the unauthorized relocation determination means for determining that the machine body is illegally relocated based on the length of time to be performed and the determination result that the unauthorized relocation determination means is unauthorized relocation. Industrial machine with relocation detection function equipped with processing means.   The unauthorized transfer determination means includes a plurality of determination units that are determined based on different criteria in a plurality of modes that are sequentially switched, and the length of time during which the state after the environmental change continues is included in the plurality of determination units. The determination unit having a plurality of determination units that perform determination as a reference, the determination unit that is based on the length of the duration is determined to be longer as a determination unit to be executed later, each determination unit, If it is determined that the standard has been reached, the process proceeds to the next mode. If it is determined that the standard has not been reached, the process returns to the initial mode, and if the final determination unit determines that the standard has been reached, it is determined to be an illegal relocation. The industrial machine with a moving detection function according to claim 1.   The industrial machine with a moving detection function according to claim 1 or 2, wherein means for detecting vibration is provided as the environmental change detection means.   As the environment change detection means, there are a plurality of types of environment change detection means having different types of environments to be detected, and the unauthorized transfer determination means is illegal transfer based on a standard defined for each type of environment change detection means. 4. The method according to claim 1, further comprising: a type-specific unauthorized relocation determination unit to be determined; and a general determination unit that determines unauthorized relocation based on the determination results of the plurality of types-based unauthorized relocation determination units. Industrial machine with relocation detection function.

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