JPH106190A - Equipment operating condition recorder and signal work device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record a personal stopping factor and a failure/frequent stop by arranging a stopping factor input means which can input it when a personal stopping factor is generated and a stopping factor input means which can input it when a mechanical stopping factor is generated. SOLUTION: Keys of first stopping factor input means 14a and 14b to input a personal stopping factor, accept input when equipment operating condition recorders 71 to 7n recognize a standby condition of product equipments 81 to 8n , and shows that a first stopping factor can be inputted by lighting indicating lamps 19 of the whole setting keys. A key of a second stopping factor input means 14c to input a failure/frequent stopping factor, accepts input when the equipment operating condition recorders 71 to 7n recognize a failure/frequent stop the product equipments 81 to 8n , and can input a second stopping factor by lighting the indicating lamps 19 of all the setting keys.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique which is effective when applied to detection and recording of an operation state of a production facility.

[0002]

2. Description of the Related Art Generally, on a production site where products are manufactured,
Improvements in productivity due to cost reduction, shortening of work completion, and improvement in yield are always required, and to achieve this, improvement of equipment capacity is the most important issue. Therefore, it is necessary to accurately grasp the operation status of the production equipment, analyze the current situation, identify the factors that are reducing the operation rate, and make improvements. An operating state measuring device is used as a tool for that purpose.

As described in Japanese Patent Application Laid-Open No. 6-282718, for example, this operating state measuring device is directly connected to a programmable controller (hereinafter, simply referred to as a "controller") of a production facility, and is connected to the production facility. There is known an apparatus that automatically collects and measures an operation state, a stop factor, and the like from a controller.

[0004]

The conventional operation state measuring device (hereinafter referred to as "conventional device") is effective for a production facility having a controller, but is applied to a production facility having no controller. There are the following problems.

That is, in order to apply the conventional apparatus to a production facility having no controller, it is necessary to create an interface in place of the controller. This interface needs to take in all the necessary signals from the production equipment to generate the input signals to the conventional apparatus. Therefore, if the type of the production equipment is different, the electrical characteristics of the signals, the parts for capturing the signals and the number of the captured signals are different, and a dedicated interface must be manufactured for each production equipment. In such an interface, an internal circuit becomes very complicated and expensive because a stop factor is determined by receiving a signal from a production facility.

Further, in the conventional apparatus, a stop factor is determined by an input signal from a production facility or a controller.
There is a problem in that it is not possible to collect human equipment stoppage factors (hereinafter referred to as "human stoppage factors") such as preparation work and waiting time. Further, even in the case of a device failure, high-precision operation state management becomes impossible unless the location of the failure is specifically grasped.

An object of the present invention is to provide a technique capable of easily measuring the operation status of a production facility having no controller.

Another object of the present invention is to provide a technique capable of specifically recording human and mechanical stoppage factors of a production facility.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0010]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

That is, the equipment operation state recording apparatus according to the present invention records the operation state of the production equipment and sends it to the status tabulation unit. Operating state determining means for determining which of the operating state of the state and the failure / short stop occurrence state; and a plurality of factor input sections which can be assigned, and the operating state determining means sets the production equipment in a standby state. When it is determined, the state shifts to an input enabled state, and when the production equipment is stopped due to a human factor, the specific stop factor is input by any one of the factor input units. Similarly, when the production state is determined by the operation state determination means to be in a failure / chocolate stop state, the state shifts to a state in which input is possible. Equipment and a second stopping cause the input means to which the specific stop factor is entered by any factor input unit when stopped by stop failure or chocolate. An operation data recording unit that records the operation state and the stop factor of the production facility obtained by the operation state determination unit, the first stop factor input unit, and the second stop factor input unit as time-series data. In the factor input section,
It is desirable to provide an indicator light indicating that the first or second stop factor input means is in an input enabled state.

Further, a signal processing device according to the present invention is provided between the above-mentioned equipment operation state recording device and a production facility, and includes a signal capturing section for capturing a signal from the production facility,
And a discrimination signal generation unit that processes the signal captured by the signal capture unit into a signal that can be determined by the equipment operation state recording device as the operation state of the production equipment, and outputs the processed signal.

According to the above-described means, a human stop factor or failure / failure which cannot be determined only by taking in signals from production equipment.
It becomes possible to record concrete stoppages. In addition, it is possible to easily connect and use various production facilities without creating a complicated interface, and it is possible to easily measure the operation status of the production facilities.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an equipment operation monitoring system using an equipment operation state recording device and a signal processing device according to an embodiment of the present invention. The equipment operation state is monitored online in real time. Has become. This monitoring system is composed of a host computer (status aggregation unit)
1, the database 2, terminal 3 ₁ ~3 _n, LAN (LocalA
rea Network) 4, the relay terminal 5, a multiplexer 6, the facility operation status recording device 7 ₁ to _7-n, the interface 34
₁ to 34C _n, the production facility 8 ₁ ~8 _n, RS-232C line 10, RS-232C line 11 ₁ to 11 _n, the printer 1
And 2. Note that the RS-232C line is a line composed of a connector and a wiring cable standardized by the Electronic Industries Association (EIA) and widely used for connecting OA equipment.

In the monitoring system having such a configuration,
The database 2 is managed by the host computer 1. The host computer 1, terminal 3 ₁ to 3 _n, the relay terminal 5, the printer 12 are connected to each other through respective LAN 4. Further, the relay terminal 5 and in RS-232C line 10 to the multiplexer 6, the multiplexer 6 and the facility operation status recording device 7 ₁ ~7 _n RS-232
They are respectively connected at C line 11 ₁ to 11 _n, these and interfaces 34 ₁ to 34C _n, production facilities 8 ₁
8 _n constitutes the data collection system 9. Note that a plurality of data collection systems 9 can be provided on the LAN 4.

The equipment operation state recording devices 7 _{1 to} 7 _n monitor the operation state of the production equipments 8 ₁ to 8 _n connected thereto and record the operation data in the internal memory. Also, the relay terminal 5
Is regularly obtain operational data each facility operation status recording device 7 ₁ to _7-n was recorded via the multiplexer 6 is a multiplexer, and transfers via the LAN4 to the host computer 1. The host computer 1 is connected to the relay terminal 5
Is stored in the database 2. The terminal 3 ₁ to 3 _n and the relay terminal 5, the production equipment 8 ₁ to 8 _n through the database 2 LAN 4
Operating data to get not only the summary and analysis of the data is able to perform, are able to perform centralized monitoring of production facilities 8 ₁ ~8 _n by the displayed operation data.

As shown in FIG. 2, the facility operation status recording device 7 ₁ to _7-n, the key input unit 13 for inputting a predetermined factor in the hand, the necessary operational information over eg 40 digits × 2 lines LCD display unit 24 for displaying, running display indicates that the corresponding production equipment 8 ₁ to 8 _n is operational lamp 2
1, a stop indicator light 22 indicating that the vehicle is stopped except for a fault / choco stop, and a fault indicator light 23 indicating that a fault / choco stop is provided.

The key input unit 13 includes a factor input key (factor input unit) 14, an end key 15, a correction key 16, a failure key 17 and a repair start key 18. Each of the keys 14, 15, 16, 17 and 18 is provided with an indicator light 19 which illuminates and indicates that the key is ready for input. Therefore, when a key 14, 15, 16, 17, 18 whose indicator light 19 is not lit is pressed, the factor assigned to the key 14, 15, 16, 17, 18 is not input. In the present embodiment, the input is in a key format, but may be in another input format such as a switch.

The factor input keys 14 are used for the production facilities 8 ₁ to 8 _n
Stops due to human factors, failure due to mechanical or electrical trouble or short stop (= not a failure,
For example refers to a phenomenon that the error determined to be in production facilities 8 ₁ to 8 _n is stopped due detection error of the sensor. Therefore, it is possible to easily return to the operating state by the reset operation. It is common to have a short stop time of less than 5 minutes. ) Is a part for inputting the specific cause of the stop, and a unique key number is assigned to each of them. The factor input keys 14 allow the user to specifically set and use human and facility stop factors for each key.

The illustrated factor input keys 14 are first stop factor input means 14a, 14b for inputting a human stop factor,
And a second stop factor input means 14c for inputting specific facility stop factors. The first stop factor input means 14a and 14b are further subdivided into a stop factor A input unit 14a for inputting various wait factors and a stop factor B input unit 14b for inputting various maintenance factors. It is divided and arranged.

The first stopping cause input means 14a for human stop cause is input, 14b are key accepts input when the equipment operating state recorder 7 recognizes the standby state of the manufacturing equipment 8 ₁ to 8 _n , The indicator lamps 19 of all the setting keys are turned on to indicate that the first stop factor can be input. Also, the key of the second stopping cause input means 14c for fault / chocolate stop factor is input, receives an input when the equipment operating state recorder 7 recognizes the stop failure / chocolate production equipment 8 ₁ to 8 _n , Indicator light 1 for all setting keys
9 is turned on to indicate that the second stop factor can be input. The input blocking unit to which any of the factors indicated by the reference numeral 14d is not assigned does not always respond to the input operation in order to prevent erroneous input, and in connection with this, the indicator lamp 19 does not light up. I have.

The key input unit 13 is used for various initial settings (initialization of the internal memory, setting of the present date and time of the internal clock, setting of the function of the factor input key 14, identification of the production equipments 8 ₁ to 8 _n , management numbers). , Etc.) are used as numeric keys, cursor movement keys and the like. Therefore, the user can appropriately change the information displayed on the LCD display unit 24 with the key input unit 13 and set the desired contents.

[0024] The internal structure of the facility operation status recording device 7 ₁ to _7-n shown in the block diagram of FIG. As shown, each facility operation status recording device 7 ₁ to _7-n is provided with a control arithmetic unit (operation state judgment means) 25. The control operation unit 25 includes a key input unit 13, an operation indicator light 21, and a stop indicator light 2.
2, failure indicator light 23, LCD display unit 24, signal input A2
6, signal input B27, signal input C28, signal input D2
9, a communication port 30, an internal clock 31, an operation data recording unit 32, and a setting data storage unit 33 are connected to each other.

[0025] The signal input A26~D29 production equipment 8 ₁
8 is an input unit of the signal transmitted from _n, the signal input A2
6 the input of the signal for detecting the in construction of production facilities 8 ₁ to 8 _n, the signal input B27 alarm operating when construction the end of the production facilities 8 ₁ to 8 _n, for example, detects the ringing start and ringing termination and buzzer Signal input section. The signal input C28, the input portion of the signal for detecting the ringing start and ringing termination and the buzzer in the event stop failure / chocolate production equipment 8 _{1-8 n,} the signal input D29 is the production facility 8 _1-8
It is a signal input section for counting the number of productions of workpieces processed within _n . In the present embodiment, production equipment by signal input A26~D29 8 ₁ ~8
_Although the start state, standby state, failure / chocolate stop state, and production quantity of _n are detected, the signal input D29 does not need to be provided when it is not necessary to grasp the production quantity. In addition, other than a buzzer, such as a warning light that can be visually recognized, can be used as the alarm.

The communication port 30 functions as an output port used to transfer operation data to a host computer. Operation data recording unit 32, production facilities 8 _1-8 by the input signal to the signal input A26~D29
The operation status of _n is discriminated, the start date and time of the start of construction, the number of production, the start time of the buzzer (hereinafter referred to as “end buzzer”) for notifying the start of the start of construction, and the buzzer for notifying the occurrence of failure / choco stop (hereinafter referred to as “failure buzzer”) ), The start date and time of the standby state, the start date and time of waiting for a failure / chocolate stop, and the like are automatically recorded as time-series data. The setting data storage unit 33 stores the first stop factor input unit 14 assigned to the factor input key 14.
a, 14b and the assignment data of the second stop factor input means 14c are stored.

As shown in FIG. 4, the interface (signal processing device) 34 ₁ ~34 _n has a signal processing unit 35, facility operation state detector 36 _{1-36 4.} Facility operation state detector 36 _{1-36 4} takes in signals from the signal extraction unit 37 ₁ to 37 ₄ of the production facilities 8 ₁ to 8 _n, the operating state judgment to determine the ON · OFF · blinking state of the signal For generating and outputting signals. Incidentally, the signal receiving unit 37 ₁ to 37 _4, the production facility 8 ₁ to 8 _n lamps indicating the operating status of the buzzer, the facility operation status recording device from the sensors such as 7 ₁ to _7-n production facilities described above 8 ₁ to 8 _n state (that is, construction state, the standby state, the trouble / chocolate stop occurrence and production quantity) are assigned portion to output a signal required to recognize the. Thus, the signal receiving unit 37 ₁ to 37 ₄ may be different for each type of production equipment 8 ₁ to 8 _n.

The signal processing unit 35 includes the equipment operation state detector 3
6 _{1-36 4} generates a signal the level or the like and adjustment of the output signal, capacity utilization state recording device 7 ₁ to _7-n of the signal inputs A
26 to D29 convert the signals into receivable signals. Incidentally, if the signal input A26~D29 can be received without converting the output signal of the facility operation state detector 36 _{1-36 4,} the signal processing unit 35 can be omitted.

FIG. 5 shows the structure of the equipment operation state detectors 36 _{1 to} 36 ₄ . The equipment operation state detectors 36 _{1 to} 36 ₄
Includes a signal acquisition unit 38, a determination signal generation unit 39, and a determination condition selection switch 40. Signal capturing unit 38 determines the input signal from the signal receiving portion of the production facilities 8 ₁ to 8 _n photocoupler, after electrically isolated so as not to affect the production facility using a relay or the like signal generator 39 Output to
The determination signal generation unit 39 determines the ON / OFF / blinking state of the input signal from the signal acquisition unit 38 and outputs a signal for operating state determination. The discrimination signal generator 39 has a plurality of signal discrimination processing conditions. Therefore, by operating the determination condition selection switch 40, the determination signal generation unit 39 can process the input signal from the signal acquisition unit 38 into a desired signal.

[0030] In facility operation monitoring system having such a configuration, the operation state determination in capacity utilization state recording device 7, the signal determination processing facility operation state detector 36 _{1-36 4,} the input of the stop cause A · B About the input of the failure factor and the determination of the failure / short stop,
It will be described sequentially.

Operation state discrimination in the equipment operation state recording apparatus The equipment operation state recording apparatus determines the operation state of the production equipment based on the input signals to the signal inputs A to D, and converts the operation data as described above in time series. Is recorded automatically. The operation data at the signal inputs A to D is recorded as follows.

First, in FIG. 6, a period t _{1 to} t ₃ during which the input signal to the signal input A to which the signal indicating that the production facility is under construction is ON is determined to be the construction start time. Then, the signal rising time t ₁ is recorded as the start of construction.
Then, the signal falling time t ₃ is recorded as the start of construction.

From the time t _{3 when the} construction is completed, sampling is started for the first stop factor input means in which the signal inputs A to C and the stop factors A and B are set, and within _Tx seconds from the time t _3. signal input a through C, if not entered any stopping cause a · B, the time t ₃ is recorded as the start of the standby state. Further, when the signal input B is turned ON at time t ₂ or time t ₄ is within T _x seconds before the time t ₃ comes, the time t ₃ is recorded as sounding the beginning of the end buzzer. If T _x seconds after the elapse of the time t ₅ the signal input B is turned ON, the time t ₃ is recorded as the start of the standby state, the time t ₅ is recorded as sounding the beginning of the end buzzer. Similarly, the signal input A from time t ₆ within T _x seconds
-C, to be entered is either stopping cause A · B, the time t ₆ is recorded as the start of the standby state.

The number of rising (or falling) times of the signal input D (this is a count signal of the number of workpieces produced) in the period t _{1 to} t ₃ is counted, and the total number of starts is recorded at time t _1. It is added to the start data as a production number. If the ringing time of the end buzzer is not required as operation data, the signal input B is not used.

In FIG. 7, similarly to the case of FIG. 6, the signal input A~C from time t ₈ within T _x seconds, stop cause A · B
If any of the input, the time t ₈ is recorded as the start of the standby state. And time t before time t _8
7 or at time t ₉ which is within _Tx seconds, the signal input C
Since the case became N is a case of failure / chocolate stop has occurred, it records the time t ₈ as a sound start of the failure buzzer. In addition, from the operation end time t ₈ after a lapse of T _x second time t
Since ₁₀ the signal input C is if turned ON so that no trouble in operation occurs, the time t ₈ is recorded as the start of the standby state, the time t ₁₀ is recorded as sounding start failure buzzer You. Then, the time t ₁₁ to the signal input C falls is recorded as the start of a failure / chocolate stop coping waiting second stopping cause the input means is ready input.

Regarding the signal discrimination processing of the equipment operation state detector As described above, the equipment operation state detector determines the ON / OFF / blinking state of the signal input from the production equipment, and as shown in FIG. ~ Generate an output signal under the conditions of processing 8. That is, by selecting the conditions of processing 1 to processing 8 by the determination condition selection switch, one of the eight types of signals shown is generated, and the generated signal is output from the output terminal provided for each processing. Is done.

In the signal processing in this case, in order to distinguish the blinking signal from the production facility from the ON and OFF signals, the blinking within a period T ₁ longer than the blinking cycle can be handled as continuous. Has become. Further, in order to prevent wrong recognition of the ON signal and the flashing signal in the case of processing the blinking signal OFF and is set longer period T ₂ than the period T _1, a state in which signal rises is the sustain period T ₂ or more If so, it is recognized as an ON signal. Note that the periods T ₁ and T ₂ can be adjusted by the discrimination signal generator.

The contents of processing 1 to processing 8 selected by the determination condition selection switch are as follows.

Only when the input signal is turned on in process 1, a signal as shown in the figure is output. Since flashing signal in the processing 1 and the next process 2 it is processed as OFF, recognition of the input signal ON is delayed by a period T _2. Process 2 is a logical inversion of the output of process 1. Process 3 outputs a signal as shown only when the input is a pulse signal. Process 4 is a logical inversion of the output of process 3. Processing 5 outputs a signal as shown in the figure when the input signal is a pulse signal or an ON signal. Processing 6
Is a logical inversion of the output of the process 5. And
Processing 7 outputs the input signal as it is by only level conversion. Process 8 is a logical inversion of the output of process 7.

[0040] Figure 4 signal receiving unit 37 ₁ in the portion where the status during the non-construction in construction different (e.g., construction indicator lamp, etc.), signal receiving unit 37 _2, the end buzzer in a non site where the status during ringing different (e.g., construction completion display lamp or the like), the signal receiving unit 37 _3, portion where the status during and in sounding fault buzzer non sounds different (e.g., failure displaying lamp) , Respectively, and signals are extracted. By selecting any one of the above-described processes 1 to 8 for each signal, FIG.
To facility operation state detector 36 _1, the signal input A26,
To facility operation state detector 36 _2, signal input B27, to facility operation condition detector ₃₆₃ the signal input C28, the output signal is produced directly. The signal in the case where the take-out portion 37 ₄ assigned to the product sensor and product count sensor or the like, the signal input using a process 7 or processing 8 this D2
9 can be directly output. Therefore, if a signal is extracted from the above-described portion, it is possible to generate a desired signal only by selecting the processing conditions, so that the output signal of the equipment operation state detector is used as the signal of the equipment operation state recording device. A signal processing unit for converting the signals into signals that can be received by the inputs A to D becomes unnecessary. Thus, the interface can be common without depending on the type of the production equipment to be attached.

Input of Stop Factor A FIG. 9 shows an example of input of the stop factor A. Here, it is assumed that the function of inputting “waiting for product” to the factor input key 14 of No. 00 and “waiting for others” to the factor input key 14 of No. 01 is set by the user's initial setting. .

[0042] is a factor input key 14 at time t ₃ after the input signal of the signal input B to detect the ringing of the buzzer falls at time t ₂ No.00 has been input. Period t ₂ ~t ₃
There time t ₂ if T _x seconds (e.g. 10 seconds) than is recorded as specific stop factor "product waiting" start. on the other hand,
If the period t ₂ ~t ₃ is far older than T _x seconds, the time t ₂
Is recorded as the start of the standby state, and time t ₃ is recorded as the start of “product wait”.

[0043] Subsequently, the end of the stop factor "product waiting" by pressing the end key 15 at time t ₄ is input, factor input key 14 of the time t ₅ at No.01 have been inputted.
Time t _4, if the period t ₄ ~t ₅ is less than T _x sec is recorded as the start stopping cause "other waiting". On the other hand, the period t
If ₄ ~t ₅ is long as older than T _x seconds, the time t ₄ is recorded as the start of the standby state, the time t ₅ is "Others wait"
Recorded as start.

[0044] When the input signal of the signal input A rises at time t _6, time t ₆ is recorded as construction started.
Therefore, stop cause "other waiting" so will end with a time t _6, it is not that also the operational data is actual and differ forget press the End key 15.

Input of Stop Factor B FIG. 10 shows an input example of the stop factor B. In this case, according to the initial setting of the user, for example, the factor input key 14
To “Periodic inspection (once a week)”, No.06 factor input key 1
It is assumed that a function for inputting “scheduled inspection (once a month)” is set in 4.

[0046] since the fall of the input signal at time t ₂ in the signal input B, the time t ₃ to a factor input key 14 of No.05 has been input. If the period t ₂ ~t ₃ is less than T _x seconds,
Time t ₂ is recorded as the start of the stop factor "regular inspection (once a week)". On the other hand, if during the period t ₂ ~t ₃ is far older than T _x seconds, the time t ₂ is recorded as the start of the stand-by state, the time t ₃ is recorded as the start of "regular inspection (once a week)" You.

At time t ₄ , the end of the cause of the stoppage “periodic inspection (once a week)” is input by the end key 15 and at time t ₅
It is assumed that the factor input key 14 of No. 06 has been input. Period t
If ₄ ~t ₅ is less than T _x seconds, the time t ₄ is recorded as the start of the stop cause "periodic inspection (once a month)". On the other hand, if the period t ₄ ~t ₅ is if older than T _x seconds, the time t ₄ is recorded as the start of the stand-by state, the time t ₅ is recorded as the start of the stop cause "periodic inspection (once a month)" Is done.

The stop cause B differs from the stop cause A in the period from the input of the factor input key 14 to the input of the end key 15 (the period t _{3 to} t ₄ and the period t _{5 in} FIG. 10).
~t ₇₎ is adapted to signal input A~C are ignored. Accordingly, the rise of the input signal of the signal input A at time t ₆ is ignored, the time t ₇ is recorded as construction started.

The periods t _{3 to} t ₄ and the periods t _{5 to} t
₇ when the input signal from the production facility 8 ₁ to 8 _n are in the ON state, since the capacity utilization state recording device it is warned that the input signal from the production equipment by ringing the buzzer is turned ON This prevents the end key 15 from being forgotten to be pressed.

Input of Failure Factor and Judgment of Failure / Choice Stop FIG. 11 shows an input example when a failure occurs in the production equipment, and FIG. 12 shows an input example when a chocolate stop occurs in the production equipment. FIG.
The only difference between FIG. 1 and FIG. 12 is whether there is any input from the repair start key 18 at time t ₃ . In this case, in any case, according to the initial setting of the user, the factor input key 14 of No. 04, which is the second stop factor input means, has a failure /
It is assumed that a function for inputting "pre-alignment" which is a cause of a short stop has been set.

[0051] In the case of FIG. 11 and FIG. 12, the falling of the signal input C at both time t _2, time t ₂ is recorded as the start of the repair waiting. Until the end key 15 at time t ₈ is pressed, repair start key 18, is it possible to operate the fault / chocolate stop factor input function is set second stopping cause the input means and end key 15 , Signal inputs A to D are all ignored. Thereby, in both cases of FIG. 11 and FIG. 12, the time (period t ₄ -t ₅₎
And the period t _{6 to} t ₈ ) can be included in the failure repair time or the chocolate stop time.

In the recording of the operation data in the case of FIG. 11, time t ₂ is recorded as the start of waiting for repair, time t ₃ is recorded as the start of repair, and time t ₈ is recorded as the start of construction, and input at time t _7. The failure factor “pre-alignment” is added to the repair start record recorded at time t ₃ .
It should be noted that the failure factor is making it possible to input at any time if the period of time t ₃ ~t _8.

In the data recording in the case of FIG. 12, the repair start key 18 is not pressed because no failure has occurred.
This is recognized as a short stop. In this case, time t ₂ is the start of countermeasures against a short stop, and time t ₈
Are recorded as the start of construction, respectively, and the cause of the chocolate stop “pre-alignment” input at time t ₇ is added to the record of the start of the handling of the chocolate stop recorded at time t ₂ .
In addition, chocolate stop factor is making it possible to input at any time during the time period t ₂ ~t _8.

11 and 12, the period t ₄
~t ₅ and period t ₆ the input signal of the capacity utilization state recording device in ~t ₈ from the production equipment by ringing the buzzer O
N is warned, and forgetting to input the end key 15 is prevented.

Although the invention made by the inventor has been specifically described based on the embodiment, the invention is not limited to the embodiment, and various modifications may be made without departing from the gist of the invention. It goes without saying that it is possible.

For example, the item contents of the factor assigned to the factor input key 14 can be freely set as required, and are not limited to the above-described embodiment.

In the above description, the case where the invention made by the present inventor is mainly applied to the collection of operation data in semiconductor manufacturing, which is a technical field to which the invention belongs, has been described. Can be applied to collection.

[0058]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

(1) According to the operation data collection technique of the present invention, first stop factor input means which can be input when a human stop factor occurs, and when a mechanical stop factor occurs Since there is provided a facility operation state collecting device having a second stop factor input means capable of inputting to a user, specific factors such as a human stop factor and a failure / choco stop which cannot be determined only by taking in a signal from a production facility. Recording becomes possible.

(2) Further, since a signal processing device for processing a signal from the production equipment into a signal that can be determined by the equipment operation state collecting device and outputting the signal is provided, various production equipment without a controller is complicated. It can be easily connected and used without creating a simple interface. Thus, the operation status of such a production facility can be easily measured.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an equipment operation monitoring system using an equipment operation state recording device and a signal processing device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a key arrangement of the equipment operation state recording device of FIG. 1;

FIG. 3 is a block diagram showing an internal structure of the equipment operation state recording device of FIG.

FIG. 4 is a block diagram showing an internal structure of an interface.

FIG. 5 is a block diagram showing the internal structure of the interface in more detail.

FIG. 6 is a time chart showing an example of signal processing in the operation state determination of the equipment operation state recording device.

FIG. 7 is a time chart showing another example of signal processing in the operation state determination of the equipment operation state recording device.

FIG. 8 is a time chart showing output signals by processing 1 to processing 8 for an input signal from a production facility.

FIG. 9 is a time chart showing an input example of a stop cause A;

FIG. 10 is a time chart showing an input example of a stop cause B;

FIG. 11 is a time chart showing input of a failure factor and determination of a failure.

FIG. 12 is a time chart showing input of a failure factor and determination of a short stop;

[Explanation of symbols]

1 host computer (status summary section) 2 database 3 ₁ to 3 _n terminal 4 LAN 5 relay terminal 6 multiplexer 7 ₁ to _7-n equipment operation status recording device 8 ₁ to 8 _n production equipment 9 Data acquisition system 10 RS-232C line 11 ₁ RS-232C line 12 Printer 13 Key input unit 14 Factor input key (factor input unit) 14a Stop factor A input unit (first stop factor input unit) 14b Stop factor B input unit (first stop factor input unit) 14c Second stop factor input means 14d Input cutoff unit 15 End key 16 Correction key 17 Failure key 18 Repair start key 19 Indicator light 21 Operation indicator light 22 Stop indicator light 23 Failure indicator light 24 LCD display unit 25 Control operation unit ( (Operation state determining means) 26 input signal A 27 input signal B 28 input signal C 29 input signal D 30 communication port 31 internal clock 32 operation data recording unit 33 setting data storage unit 34 _{1 to} 34 _n interface (signal processing device) 35 signal processing unit 36 _{1 to} 36 ₄ equipment operation state detector 37 _{1 to} 37 ₄ signal extraction unit 38 signal acquisition Unit 39 determination signal generation unit 40 determination condition selection switch

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsuneo Kogure 145 Nakajima, Nanae-cho, Kameda-gun, Hokkaido Hitachi North Sea Semiconductor Co., Ltd.

Claims (3)

[Claims] 1. A facility operation state recording device for recording an operation state of a production facility and sending the operation situation to a situation tabulation section, wherein the production facility receives a signal from the production facility, and the production facility is in a start state, a standby state, or An operating state determining means for determining which operating state of a failure / choco stop occurrence state; and a plurality of factor input sections which can be assigned, wherein the operating state determining means determines whether the production facility is in a standby state. When it is determined, the state shifts to an input enabled state, and when the production facility is stopped due to a human factor, a specific stop factor is input by any of the factor input units.
And a plurality of factor input units which can be assigned in the same manner, and are set to a state in which input is possible when the operation state determining unit determines that the production facility is in a failure / choco stop occurrence state. The second stop factor input means, wherein the specific stop factor is input by any of the factor input units when the production equipment is stopped due to a failure or a short stop, the operation state determination means, Equipment comprising an operation data recording unit for recording, as time-series data, an operation state and a stop factor of the production facility obtained by the first stop factor input means and the second stop factor input means. Operation status recording device. 2. An equipment operating state recording apparatus according to claim 1, wherein said factor input section has an indicator light indicating that said first or second stop factor input means is in an input enabled state. An equipment operation state recording device, which is provided. 3. A signal processing device installed between the equipment operation state recording device according to claim 1 and the production equipment, wherein: a signal acquisition unit that captures a signal from the production equipment; A signal captured by the signal capture unit, and a determination signal generation unit that processes and outputs a signal that can be determined by the facility operation state recording device as an operation state of the production facility. Processing equipment.