WO2014190706A1 - 干燥炉内片材数量的监测方法及装置、干燥炉的管控系统 - Google Patents

干燥炉内片材数量的监测方法及装置、干燥炉的管控系统 Download PDF

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Publication number
WO2014190706A1
WO2014190706A1 PCT/CN2013/088557 CN2013088557W WO2014190706A1 WO 2014190706 A1 WO2014190706 A1 WO 2014190706A1 CN 2013088557 W CN2013088557 W CN 2013088557W WO 2014190706 A1 WO2014190706 A1 WO 2014190706A1
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WIPO (PCT)
Prior art keywords
furnace
sheets
signal
drying furnace
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/088557
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English (en)
French (fr)
Inventor
程大富
翁铭廷
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BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei Xinsheng Optoelectronics Technology Co Ltd
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Publication date
Application filed by BOE Technology Group Co Ltd, Hefei Xinsheng Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/382,371 priority Critical patent/US9523981B2/en
Publication of WO2014190706A1 publication Critical patent/WO2014190706A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/003—Handling, e.g. loading or unloading arrangements for articles
    • F26B25/004—Handling, e.g. loading or unloading arrangements for articles in the shape of discrete sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects

Definitions

  • Embodiments of the present invention relate to a method and apparatus for monitoring the number of sheets in a drying furnace and a control system for the drying furnace. Background technique
  • the operation of drying the glass substrate in the drying furnace is generally included, and the interaction signal is disconnected if a robot or furnace alarm occurs during the transmission of the robot to the glass substrate.
  • the situation often leads to the inaccuracy of the existence of the number of glass substrates in the drying furnace. For example, when the robot takes out the film, the robot has an alarm.
  • the robot does not act due to the signal interruption (ie, does not take out the film from the furnace, the furnace Still maintaining the full state), however, the existence value of the number of glass substrates in the furnace will respond to the action of the robot and subtract the corresponding number of glass substrates, which will result in the inaccuracy of the number of glass substrates in the furnace.
  • the processing personnel opened the equipment without confirming the billing situation in the furnace. ⁇ Ling believes that the existence value of the number of glass substrates in the furnace is less than the maximum filling value of the glass substrate in the furnace, and the robot will continue to feed the glass substrate into the furnace. The risk of fragmentation will increase dramatically.
  • the embodiment of the invention provides a method and a device for monitoring the quantity of sheets in a drying furnace, and a control system for the drying furnace, which can simply and accurately monitor the amount of glass in the furnace, which can effectively avoid the abnormal amount of the amount of materials. Fragmentation problem.
  • An aspect of the present invention provides a method for monitoring the number of sheets in a drying furnace, comprising: obtaining a sheeting signal and a sheeting signal during sheet conveying, the sheeting signal including a sheet conveyed into the furnace by a robot
  • the quantity information, the film output signal includes the quantity information of the sheet conveyed by the hand
  • the actual number of the glass substrates in the furnace is calculated according to the film feeding signal and the film output signal.
  • obtaining the filming signal and the filming signal during the sheet conveying process may be: extracting the filming signal and the filming signal in an interaction signal between the robot and the furnace.
  • the method of monitoring the number of sheets in the furnace may further include: displaying the calculated actual number of sheets in the furnace.
  • the furnace may further include: obtaining a sheet feeding signal and a sheet discharging signal corresponding to different furnaces according to the type of the furnace.
  • the feed signal includes a feed signal of the sealant hardening furnace, a single sheet feed signal of the drying oven after the washing machine, and a double sheet feed signal of the drying oven after the washing machine;
  • the output signal includes a frame hardening The film output signal of the furnace, the single chip output signal of the drying oven after the cleaning machine, and the double chip output signal of the drying oven after the cleaning machine.
  • the actual number of glass substrates in the furnace can be calculated according to the incoming and outgoing signals.
  • the actual number of sheets in the furnace the number of sheets recorded in the output signal of the sealant hardening furnace.
  • - The number of sheets recorded in the feed signal of the sealant hardening furnace.
  • the actual number of glass substrates in the furnace can be calculated according to the incoming and outgoing signals.
  • the actual number of sheets in the furnace is recorded in the double-chip output signal of the drying furnace after the cleaning machine.
  • the monitoring method may further include: comparing the actual count value of the sheet in the furnace with the existence value of the number of sheets in the furnace, and executing a predetermined execution strategy based on the comparison result.
  • the execution of the predetermined execution strategy based on the comparison result may be: when the count value of the actual number of sheets in the furnace and the existence value of the number of sheets in the furnace are not equal, a bill abnormality alarm is issued.
  • a monitoring device for the number of sheets in a furnace comprising an acquisition module and a calculation module, wherein the acquisition module is used for acquiring a feed signal and a film during the sheet conveyance process.
  • the feed signal includes information on the amount of sheets conveyed into the furnace by the robot, the output signal including information on the number of sheets conveyed by the robot;
  • the calculation module is configured to be based on the feed signal and the output signal Calculate the actual number of sheets in the furnace.
  • the monitoring device for the number of sheets in the furnace may further include a judging module for judging the sheeting signal and the sheeting signal corresponding to the different furnaces according to the type of the furnace.
  • the monitoring device for the number of sheets in the furnace may further comprise a furnace for calculation The actual number of sheets is displayed in the display module.
  • the monitoring device may further include an execution module for comparing the count value of the number of sheets in the furnace with the existence value of the number of sheets in the furnace, and executing a predetermined execution strategy based on the comparison result.
  • a further aspect of the invention provides a control system for a drying furnace comprising the monitoring device of any of the above.
  • the embodiment of the invention calculates the actual number of glass substrates in the furnace by using the filming signal and the filming signal in the interaction signal between the robot and the furnace during the transmission process of the glass substrate, so that it is not affected by the alarm of the robot or the furnace, and the counting is simple, Accurate and cost-effective compared to the method of installing the sensor.
  • FIG. 1 is a basic flow chart of a method for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention
  • FIG. 2 is a flow chart of another method for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention
  • FIG. 3 is a flow chart of a method for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a monitoring device for the number of sheets in a drying furnace according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of another apparatus for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of another apparatus for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention.
  • FIG. 7 is a basic flow chart of a method for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a device for monitoring the number of sheets in a drying furnace according to an embodiment of the present invention. detailed description
  • the interaction signal between the robot and the furnace is broken due to the alarm of the robot or the furnace, resulting in inaccurate data of the glass substrate in the drying furnace.
  • an embodiment of the present invention provides a method for monitoring the number of sheets in a drying furnace, the method comprising:
  • Step S100 Acquire a film input signal and a film output signal during the sheet conveying process
  • Step S102 Calculate the actual number of sheets in the furnace according to the sheet feeding signal and the sheet ejection signal.
  • the sheet feeding and the sheeting signal in the sheet conveying process are used to realize the monitoring of the sheet in the furnace, and the basis for judging the billing condition in the furnace is provided, and the monitoring method is not affected between the robot and the furnace.
  • the effect of the interruption of the interactive signal is simple and accurate.
  • the sheet may be a glass substrate or the like.
  • the incoming signal and the outgoing signal obtained in step S100 are extracted from the interaction signal between the robot and the furnace, and the incoming signal is generally sent by the robot, and the output signal is generally received by the robot.
  • the chip signal the number of incoming sheets of the sheet is indicated by a signal command (PLC Bit). If the PLC bit is B in the incoming signal, the number of pieces that the furnace is ready to feed is B.
  • the output signal can also pass through the PLC.
  • Bit indicates the number of sheets produced. If the PLC bit is A in the output signal, the number of sheets prepared by the furnace is A.
  • the number of furnace feeds and the number of pieces of the furnace are actually known, so that the number of pieces taken out of the furnace minus the number of pieces fed into the furnace can be 4 ⁇ The actual number of sheets in the furnace is easily obtained.
  • the furnace used in the manufacturing process of the liquid crystal panel is usually a drying machine and a frame hardening furnace.
  • the main difference between the post-cleaning oven and the frame-hardening furnace is:
  • the drying furnace can transfer two glass substrates through a robot and two glass substrates through a robot.
  • the frame hardening furnace for example, the number of incoming sheets described in the incoming signal is B, and the number of outgoing sheets recorded in the outgoing signal is A, and the number of counts is BA.
  • the counting method of transferring two glass substrates by the robot if the counting is still performed according to the above counting method, the counting is doubled, so that the robot transmits two glass substrates.
  • another embodiment can further derive the monitoring method of the number of sheets in the furnace including the following steps:
  • Step S100 Acquire a film input signal and a film output signal during the sheet conveying process
  • Step S101 Obtaining a film input signal and a film output signal corresponding to different furnaces according to the type of the furnace;
  • Step S102 Calculating the actual number of the sheets in the furnace according to the film input signal and the film output signal corresponding to different furnaces.
  • the difference between this embodiment and the previous embodiment is that: before calculating the actual number of sheets in the furnace according to the sheet feeding signal and the sheet ejection signal, the feeding signal and the sheeting signal corresponding to different types of furnaces are obtained, and according to different types of furnaces.
  • the corresponding input signal and the output signal select the corresponding calculation formula to calculate the actual number of sheets in the furnace.
  • This can make the monitoring method of the number of sheets in the furnace of the invention not only can be applied in the frame rubber hardening furnace, but also can be applied to the drying furnace after the cleaning machine by simple modification, and even foreseeable It is further applied to other types of furnaces.
  • the incoming signal includes the incoming signal of the frame hardening furnace, the single-chip feeding signal of the drying furnace after the cleaning machine, and the double drying machine of the cleaning machine.
  • the film feed signal includes a film output signal of the frame rubber hardening furnace, a single chip output signal of the drying furnace after the cleaning machine, and a double chip output signal of the drying furnace after the cleaning machine.
  • the PLC bit is B in the incoming signal of the frame-hardening furnace
  • the PLC bit is A in the output signal of the frame-hardening furnace
  • the PLC bit is C in the single-chip input signal of the drying furnace after the cleaning machine.
  • the PLC bit is D in the single chip output signal of the furnace, and the PLC bit is E in the double chip input signal of the drying oven after the cleaning machine, and the PLC bit is F in the double chip output signal of the drying oven after the cleaning machine,
  • the counting formula can be modified according to the type of furnace and the number of sheets conveyed by the robot.
  • the counting formula three pieces of the film of the furnace x3 - three pieces of the furnace Chip signal x3+ furnace double-chip input signal x2-furnace double-chip output signal x2+ furnace single-chip input signal-furnace single-chip output signal, and so on, the monitoring method of the furnace inner sheet of the embodiment of the invention can be applied In a variety of furnaces.
  • the monitoring method can also display the results of the actual number of sheets in the furnace calculated by the above steps.
  • the method of another embodiment of the present invention includes:
  • Step S100 Acquire an incoming and outgoing signal during the sheet conveying process
  • Step S101 obtaining input and output signals corresponding to different furnaces according to furnace type; Step S102: calculating actual number of sheets in the furnace according to input and output signals corresponding to different furnaces; Step S103: calculating the obtained furnace inner sheet The actual number is displayed.
  • an in-furnace sheet monitoring device 1 includes an ear piece 11 and a calculation module 12.
  • the block 11 is used to obtain the incoming and outgoing signals during the sheet conveying process;
  • the calculating module 12 is configured to calculate the actual number of sheets in the furnace based on the incoming and outgoing signals.
  • the counting formula adopted by the calculation module 12 is preset according to the input and output signals, and the acquisition module 11 acquires the incoming signal and the output signal, and sends it to the calculation module 13, for example, the PLC bit record in the incoming signal.
  • the number of incoming chips is B
  • the number of shots recorded by the PLC Bit in the output signal is A
  • the in-furnace sheet monitoring device of the embodiment can calculate the number of sheets in the furnace by using the sheet feeding signal and the sheet ejection signal in the interaction signal between the robot and the furnace to ensure the accuracy of the sheet counting in the furnace and avoid Fragmentation problems caused by inaccurate amount of bills in the furnace.
  • a number of sheets in the furnace monitoring apparatus 1 of the embodiment, including eligible ear ⁇ : Mo block 11, a calculation module 12 and the module 13 is determined.
  • the obtaining module 11 is configured to obtain a filming signal and a filming signal during the sheet conveying process;
  • the determining module 13 is configured to determine the filming signal and the filming signal corresponding to different furnaces according to the type of the furnace;
  • the calculating module 12 is configured to The slice signal and the chip signal calculate the actual number of sheets in the furnace.
  • the monitoring device of this embodiment differs from the above embodiment in that: the monitoring device 1 further includes a determination module 13. Since the incoming and outgoing signals of different furnaces are different, if all the incoming and outgoing signals cannot be obtained, and different counting formulas are selected according to the difference between the incoming and outgoing signals, the in-furnace cannot be obtained. The number of materials is accurately counted.
  • the judging module 13 is added to the monitoring device, and all the filming signals and the filming signals of the furnace can be identified, and the corresponding counting formula is selected to calculate the in-furnace sheet, so that the monitoring device of the embodiment can be applied to various furnaces. The count of sheets in the furnace.
  • the monitoring device of another embodiment of the present invention may further have a display function.
  • the in-furnace sheet monitoring device 1 includes an ear module 11, a calculation module 12, a determination module 13, and a display module 14.
  • the obtaining module 11 is configured to acquire a filming signal and a filming signal during the sheet conveying process;
  • the module 13 is configured to determine a feed signal and a film output signal corresponding to different furnaces according to the type of the furnace;
  • the calculation module 12 is configured to calculate the actual number of sheets in the furnace according to the feed signal and the output signal;
  • the display module 14 is configured to calculate The actual number of sheets in the furnace is displayed.
  • the actual number of sheets in the furnace calculated by the calculation module 12 is sent to the display module 14 to show that the user can more intuitively understand the amount of bills in the furnace.
  • a method for monitoring the number of sheets in a furnace includes the following steps:
  • Step 200 Acquire a film input signal and a film output signal during the sheet conveying process
  • Step 201 Calculate the actual number of sheets in the furnace according to the sheet feeding signal and the sheet ejection signal;
  • Step 202 Compare the count value of the number of sheets in the furnace with the existence value of the number of sheets in the furnace, and perform predetermined according to the comparison result. Execution strategy.
  • the count value of the number of sheets in the furnace refers to the actual number of sheets in the furnace calculated based on the sheet feeding signal and the sheet ejection signal.
  • the filming signal and the filming signal may be signals sent by the arm about "opening the door” and "closing the door".
  • the arm may send a "opening door” signal to the furnace every time the film is fed, When the end of the piece is withdrawn, the signal of the "closed door” can be sent to the furnace; it can also be the signal that the stove itself performs, for example, the furnace will execute the "opening door” and “close the door” each time the film is fed.
  • the action is to send or execute a signal like this every time the film is released.
  • the furnace can judge the actual number of sheets fed and taken out based on the information, thereby obtaining the actual number of sheets in the furnace, that is, the count value of the number of sheets in the furnace.
  • the existence value of the number of sheets in the furnace refers to the number of sheets in the furnace displayed by the furnace itself, and the existence value of the number of sheets in the furnace may also be calculated by the furnace itself, for example, in the process of feeding the sheet into the furnace.
  • the relevant information of the sheet itself such as the size, thickness, material and other parameters of the sheet, is sent to the furnace, and the furnace can judge the number of sheets existing in the furnace according to the number of times the information of the sheets itself is received, and the quantity is The existence value of the number of sheets in the furnace.
  • the arm stops at a certain moment in the process of transmission for example, the arm does not move into the furnace at the time of feeding, and the "opening door” information has not been sent or the furnace
  • the "opening door” information is not executed by itself, but the furnace has received information about the sheet itself, and the furnace adds 1 to the "value of the number of sheets in the furnace", and the number of sheets in the furnace is counted.
  • the actual number of sheets in the furnace is calculated by using the sheeting signal and the sheeting signal in the interaction signal between the robot and the furnace, and then the furnace is used. Comparing the count value of the sheet quantity with the existence value of the number of sheets in the furnace, it can be judged whether the amount of the bill in the furnace is abnormal (dismatch), if the count value of the number of sheets in the furnace is consistent with the existence value of the number of sheets in the furnace , the number of sheets in the furnace is normal, and the equipment can be opened for operation; if the count value of the number of sheets in the furnace is different from the value of the number of sheets in the furnace, the number of sheets in the furnace is abnormal, and the equipment cannot be opened immediately. After the equipment is abnormalized and the equipment is turned on, the problem of fragmentation caused by abnormal bills can be effectively avoided.
  • "inventory” refers to the sheet material in the furnace and the sheet data in the furnace.
  • the count value of the number of sheets in the furnace and the number of sheets in the furnace are inconsistent: In one case, the count value of the number of sheets in the furnace is larger than the value of the number of sheets in the furnace, and this case must be performed. Alarm to prevent the robot from being fed into the sheet in each layer of the furnace. The robot does not cause the fragmentation due to the fact that the number of sheets in the furnace does not match the actual number. The other case is the inner sheet. The count value of the number of materials is less than the existence value of the number of sheets in the furnace. In this case, the device can be alarmed or the device can be directly started without alarm. This situation only reduces the work efficiency, and no fragmentation occurs even if the device is directly activated.
  • the above alarm may be an audible alarm or a color alarm.
  • an alarm bell and an indicator light are set on the device.
  • the alarm bell emits an audible alarm, indicating The light flashes in red to indicate that the equipment is abnormally billed.
  • the user can interrupt the interaction between the robot and the furnace and check the billing situation in the furnace.
  • the step 201 may include: obtaining the input and output signals corresponding to different furnaces according to the type of the furnace, and the step 201 may further include: counting the actual number of sheets in the furnace and The presence value of the number of sheets in the furnace is displayed. Since the above steps have been described in detail before, there will be no more details here.
  • the monitoring device 2 for the number of sheets in the furnace of the embodiment of the present invention comprises an acquisition module 21, a calculation module 22 and an execution module 23.
  • the obtaining module 21 is configured to acquire an incoming and outgoing chip signal during a sheet conveying process;
  • the calculating module 22 is configured to calculate an actual number of sheets in the furnace according to the incoming and outgoing chip signals;
  • the execution module 23 is for comparing the count value of the number of sheets in the furnace with the existence value of the number of sheets in the furnace, and executing a predetermined execution strategy based on the comparison result.
  • the count value of the number of sheets in the furnace refers to the actual number of sheets in the furnace calculated by the calculation module 22 according to the incoming and outgoing sheets signals
  • the existence value of the number of sheets in the furnace refers to the number of sheets in the furnace displayed by the furnace itself.
  • the existence value of the number of sheets in the furnace may be unacceptable due to the alarm of the robot or the furnace, such as the robot out of the film, but at this time the robot's alarm does not perform the filming operation, but the furnace responds to the robot's filming action.
  • the existence value of the number of sheets in the furnace is lowered, so that the existence value of the number of sheets in the furnace may be inaccurate due to the alarm of the robot or the furnace.
  • the embodiment of the present invention can realize accurate counting of the sheet in the furnace by software without installing hardware such as a sensor, and can effectively prevent the fragmentation problem caused by the abnormality of the bill, which is more costly than the method of installing the sensor. Advantage.
  • the present invention also provides a control system for a drying oven comprising the above-described in-furnace sheet monitoring device. Since the in-furnace sheet monitoring device has been described in detail above, it will not be described in detail herein.
  • the present embodiment further provides the following detailed description. Taking the sheet as a glass substrate as an example, the state simulation in various cases is more clearly described in a preferred manner.
  • the data status and result status at the time of arm feeding ie, furnace feeding
  • Table 1 The data status and result status at the time of arm feeding (ie, furnace feeding) are shown in Table 1:
  • the “Glass entity existence position” in the table indicates the position where the glass substrate is actually located;
  • “Glass Data existence position” indicates the glass substrate obtained by the information about the sheet itself (such as size, thickness, etc.) received by the furnace. Position, that is, if the furnace receives the size information of the glass substrate, "Glass entity existence position” is "Robot", at this time the “present value”changes;”Send Ready News Whether the number has On” indicates that the "opening door” received by the furnace or the like is judged, “On” indicates that it has been received or has been executed, and the “count value” is changed at this time; "Result” indicates the result state of the stove and the arm.
  • the furnace sends an alarm "Oven Alarm". If the fault is to be eliminated or the hidden danger is eliminated, the two values will be adjusted to be the same. The meaning of Alarm, "Robot Alarm” is the same.
  • the modules may be implemented in software for execution by various types of processors.
  • an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nonetheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different physicalities. When these instructions are logically combined, they form a module and implement the specified purpose of the module. .
  • the executable code module can be a single instruction or a number of instructions, and can even be distributed over multiple different code segments, distributed among different programs, and distributed across multiple memory devices.
  • operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
  • the module can be implemented in software, taking into account the level of the existing hardware process, it can be Software-implemented modules, without considering the cost, those skilled in the art can construct corresponding hardware circuits to implement corresponding functions, and the hardware circuits include conventional ultra-large-scale integration.
  • VLSI voltage-sensitive integrated circuits
  • gate arrays and existing semiconductors such as logic chips, transistors or other discrete components.
  • Modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

公开了一种干燥炉内片材数量的监测方法及装置、干燥炉的管控系统，该监测方法包括：获取片材传送过程中的进、出片信号（S100），所述进片信号包括有机械手传送进炉子的片材数量信息，所述出片信号包括有机械手传送出炉子的片材数量信息；根据进、出片信号计算炉内片材的实际数量（S200）。还公开了一种包括获取模块（11）和计算模块（12）的监测装置（1），以及公开了包括上述装置的干燥炉的管控系统。该监测方法不受机械手或炉子报警的影响，计数简单、准确，且相较安装传感器的方法具有成本优势。

Description

干燥炉内片材数量的监测方法及装置、 干燥炉的管控系统 技术领域
本发明的实施例涉及一种干燥炉内片材数量的监测方法、 装置及干燥炉 的管控系统。 背景技术
在电子器件制造过程中， 如显示基板的制作过程中， 通常包括对玻璃基 板在干燥炉内进行干燥的操作， 在机械手对玻璃基板传送过程中， 如果发生 机械手或炉子报警而导致交互信号断开的情况， 常会导致干燥炉内玻璃基板 数量的存在值计数不准， 例如机械手出片时， 恰好机械手发生报警， 此时机 械手由于信号中断不会发生动作（即不从炉内出片，炉内仍然保持满片状态）， 然而炉内玻璃基板数量的存在值却会响应机械手的动作而減去相应数量的玻 璃基板， 这样就会导致炉内玻璃基板数量的存在值计数不准， 此时如杲处理 人员未确认炉内的帐料情况而将设备开启， ^灵认为炉内玻璃基板数量的存 在值小于炉内玻璃基板的最大填充值， 机械手会继续向炉内送入玻璃基板， 如此会导致破片的风险就会大大增加。
目前一般是通过安装传感器来防止炉内破片， 但是成本较高， 以液晶滴 下技术 （ODF ) 为例， 安装传感器的成本为每条生产线要花费约人民币 72 万， 成本过高。 发明内容
本发明的实施例提供一种干燥炉内片材数量的监测方法及装置、 干燥炉 的管控系统， 能够简单、 准确地对炉内玻璃 反数量进行监测， 可有效避免 由于帐料数量异常而产生的破片问题。
本发明的一方面提供了一种干燥炉内片材数量的监测方法， 包括： 获取 片材传送过程中的进片信号和出片信号， 所述进片信号包括由机械手传送进 炉子的片材数量信息， 所述出片信号包括由才^戎手传送出炉子的片材数量信 息； 根据所述进片信号和所述出片信号计算炉内玻璃基板的实际数量。 例如， 获取片材传送过程中的进片信号和出片信号可以为： 在机械手和 炉子之间的交互信号中提取进片信号和出片信号。
例如， 所述炉内片材数量的监测方法还可以包括： 将计算得到的炉内片 材的实际数量进行显示。
例如， 根据进片信号和出片信号计算炉内片材的实际数量之前还可以包 括： 根据炉子类型获得不同炉子对应的进片信号和出片信号。
例如， 所述进片信号包括框胶硬化炉的进片信号、 清洗机后干燥炉的单 片进片信号和清洗机后干燥炉的双片进片信号； 所述出片信号包括框胶硬化 炉的出片信号、 清洗机后干燥炉的单片出片信号和清洗机后干燥炉的双片出 片信号。
例如， 根据进、 出片信号计算炉内玻璃基板的实际数量可以为： 当炉子 为框胶硬化炉时， 炉内片材的实际数量 =框胶硬化炉的出片信号中记载的片 材数量-框胶硬化炉的进片信号中记载的片材数量。
例如， 根据进、 出片信号计算炉内玻璃基板的实际数量可以为： 当炉子 为清洗机后干燥炉时， 炉内片材的实际数量 =清洗机后干燥炉的双片出片信 号中记载的片材数量 x2-清洗机后干燥炉的双片进片信号中记载的片材数量 x2+清洗机后干燥炉的单片出片信号中记载的片材数量-清洗机后干燥炉的单 片进片信号中记载的片材数量。
例如， 所述监测方法还可以包括： 将炉内片材的实际数量计数值和炉内 片材数量的存在值进行比较， 根据比较结果执行预定的执行策略。
例如， 根据比较结果执行预定的执行策略可以为： 当炉内片材实际数量 的计数值和炉内片材数量的存在值不相等时， 则发出帐料异常警报。
本发明的另一个方面提供了一种炉内片材数量的监测装置， 包括获取模 块和计算模块， 其中， 所述获耳 ^莫块用于获取片材传送过程中的进片信号和 出片信号， 所述进片信号包括由机械手传送进炉子的片材数量信息， 所述出 片信号包括由机械手传送出炉子的片材数量信息； 所述计算模块用于根据进 片信号和出片信号计算炉内片材的实际数量。
例如， 所述炉内片材数量的监测装置还可以包括用于根据炉子类型判断 不同炉子对应的进片信号和出片信号的判断模块。
例如， 所述炉内片材数量的监测装置还可以包括用于将计算得到的炉内 片材的实际数量进行显示的显示模块。
例如， 所述监测装置还可以包括用于将炉内片材数量的计数值和炉内片 材数量的存在值进行比较， 根据比较结果执行预定的执行策略的执行模块。
本发明的再一方面提供了一种千燥炉的管控系统， 包括上述任一项所述 的监测装置。
本发明的实施例利用玻璃基板传送过程中机械手与炉子之间交互信号中 的进片信号和出片信号计算炉内玻璃基板的实际数量， 令其不受机械手或炉 子报警的影响， 计数简单、 准确， 且相较安装传感器的方法具有成本优势。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例的附图作 简单地介绍，显而易见地， 下面描述中的附图仅仅涉及本发明的一些实施例， 而非对本发明的限制。
图 1为本发明实施例提供的一种千燥炉内片材数量的监测方法的基本流 程图；
图 2为本发明实施例提供的另一种干燥炉内片材数量的监测方法的流程 图；
图 3为本发明实施例提供的再一种干燥炉内片材数量的监测方法的流程 图；
图 4为本发明实施例提供的一种千燥炉内片材数量的监测装置的结构示 意图；
图 5为本发明实施例提供的另一种干燥炉内片材数量的监测装置的结构 示意图；
图 6为本发明实施例提供的再一种干燥炉内片材数量的监测装置的结构 示意图；
图 7为本发明实施例提供的一种千燥炉内片材数量的监测方法的基本流 程图；
图 8为本发明实施例提供的一种千燥炉内片材数量的监测装置的结构示 意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例的附图， 对本发明实施例的技术方案进行清楚、 完整地描述。 显然， 所描述的实施例是本发明的一部分实施例， 而不是全部的实施例。 基于所描 述的本发明的实施例， 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
在液晶面板的制造工艺中， 由于机械手或炉子报警导致机械手和炉子间 的交互信号断开， 从而导致干燥炉内玻璃基板数据不准确的问题。
如图 1所示， 本发明的一个实施例提供了一种干燥炉内片材数量的监测 方法， 该方法包括：
步骤 S100: 获取片材传送过程中的进片信号和出片信号；
步驟 S102: 根据进片信号和出片信号计算炉内片材的实际数量。
本实施例利用片材传送过程中的进片信号和出片信号实现了对炉内片材 的监测， 为判断炉内帐料情况提供了依据， 且该监测方法不受机械手和炉子 之间的交互信号中断的影响， 计数简单、 准确。 上述片材可以为玻璃基板等。 例如， 步骤 S100 中获取的进片信号和出片信号是从机械手和炉子之间的交 互信号中提取得到， 进片信号一般为机械手发送准^言号， 出片信号一般为 机械手接收信号，进片信号中通过信号指令（ PLC Bit )记载片材的进片数量， 如进片信号中 PLC Bit为 B, 则说明炉子准备进片的数量为 B; 同理， 出片 信号中也可以通过 PLC Bit记载片材的出片数量，如出片信号中 PLC Bit为 A, 则说明炉子准备出片的数量为 A。 当获取了上述进片信号和出片信号后， 实 际上也就知晓了炉子进片的数量和炉子出片的数量， 如此用炉子出片的数量 减去炉子进片的数量， 就可以 4艮容易地得出炉内片材的实际数量。
液晶面板制造工艺中所釆用的炉子通常为清洗机后千燥炉和框胶硬化 炉。 例如， 清洗机后干燥炉和框胶硬化炉的主要区别在于： 清洗机后干燥炉 既可以通过机械手传送一片玻璃基板又可以通过机械手传送两片玻璃基板， 通过机械手传送一片玻璃 反的计数方式如框胶硬化炉， 例如进片信号中记 载的进片数量为 B, 出片信号中记载的出片数量为 A, 则计数数量为 B-A。 对于通过机械手传送两片玻璃基板的计数方式， 如果仍然按照上述计数方式 进行计数， 则会导致计数减少一倍， 因此对于机械手传送两片玻璃基板的情 况， 采用以下公式计数： 如机械手传送两片玻璃基板的进片信号中记载的进 片数量为 D , 两片玻璃基板的出片信号中记载的出片数量为 C, 则计数数量 应为 Dx2-Cx2。
因此， 为了扩展炉内片材监测方法的适用范围， 如图 2所示， 另一实施 例可以将炉内片材数量的监测方法进一步衍生包括如下步骤：
步骤 S100: 获取片材传送过程中的进片信号和出片信号；
步驟 S101 : 根据炉子类型获得不同炉子对应的进片信号和出片信号； 步驟 S102:根据不同炉子对应的进片信号和出片信号计算炉内片材的实 际数量。
本实施例与上一实施例的区别在于： 在根据进片信号和出片信号计算炉 内片材的实际数量之前要获取不同类型炉子对应的进片信号和出片信号， 并 根据不同类型炉子对应的进片信号和出片信号选择对应的计算公式来计算炉 内片材的实际数量。 这可以使本发明的炉内片材数量的监测方法不仅可以能 够应用在框胶硬化炉中， 还可以将其计算公式经过简单修改应用在清洗机后 千燥炉中， 甚至可以预见的还可以将其进一步应用于其他类型的炉中。 针对 不同的炉子， 机械手的进片信号和出片信号必然存在区别， 进片信号包括框 胶硬化炉的进片信号、 清洗机后干燥炉的单片进片信号和清洗机后干燥炉的 双片进片信号， 出片信号包括框胶硬化炉的出片信号、 清洗机后干燥炉的单 片出片信号和清洗机后干燥炉的双片出片信号。 如框胶硬化炉的进片信号中 PLC Bit为 B , 框胶硬化炉的出片信号中 PLC Bit为 A, 清洗机后干燥炉的单 片进片信号中 PLC Bit为 C，清洗机后干燥炉的单片出片信号中 PLC Bit为 D， 清洗机后干燥炉的双片进片信号中 PLC Bit为 E， 清洗机后干燥炉的双片出 片信号中 PLC Bit为 F， 则可以得到框胶硬化炉的炉内片材的数量 =B-A; 清 洗机后干燥炉的炉内片材的数量=Ex2-Fx2+C-D。计数公式可以根据炉子的类 型以及机械手传送片材的片数进行修改， 当炉子的机械手可以传送一片、 两 片和三片片材时， 计数公式=炉子三片进片信号 x3-炉子三片出片信号 x3+炉 子双片进片信号 x2-炉子双片出片信号 x2+炉子单片进片信号-炉子单片出片 信号， 以此类推， 本发明实施例的炉内片材的监测方法可以应用于多种炉子 中。
为了使用户能够在第一时间更为直观、 清楚地了解炉内片材的数量， 上 述监测方法还可以将通过以上步骤计算得到的炉内片材实际数量的结果显示 出来。 如图 3所示， 本发明的另一个实施例的方法包括：
步驟 S100: 获取片材传送过程中的进、 出片信号；
步驟 S101 : 根据炉子类型获得不同炉子对应的进、 出片信号； 步骤 S102:根据不同炉子对应的进、出片信号计算炉内片材的实际数量； 步骤 S103: 将计算得到的炉内片材的实际数量进行显示。
如图 4所示， 本发明一个实施例的炉内片材监测装置 1 , 包括获耳 莫块 11和计算模块 12。 获^ 块 11用于获取片材传送过程中的进、 出片信号； 计算模块 12用于根据进、 出片信号计算炉内片材的实际数量。
计算模块 12所采用的计数公式是根据进、 出片信号预先设定好的，获取 模块 11获取到进片信号和出片信号， 将其发送至计算模块 13, 例如进片信 号中 PLC Bit记载的进片数量为 B,出片信号中 PLC Bit记载的出片数量为 A, 计算模块 12中预定的计算公式 =B-A, 即可得出炉内片材的实际数
例如， 本实施例的炉内片材监测装置可利用机械手与炉子间的交互信号 中的进片信号和出片信号来计算炉内片材数量， 以保证炉内片材计数的准确 性， 避免由于炉内帐料数量不准所导致的破片问题。
如图 5所示， 本发明一个实施例的炉内片材数量的监测装置 1 , 包括获 耳^ :莫块 11、计算模块 12和判断模块 13。获取模块 11用于获取片材传送过程 中的进片信号和出片信号；判断模块 13用于才艮据炉子类型判断不同炉子对应 的进片信号和出片信号；计算模块 12用于根据进片信号和出片信号计算炉内 片材的实际数量。
本实施例的监测装置与上述实施例的区别在于： 监测装置 1中还包括判 断模块 13。 由于不同炉子的进片信号和出片信号均不相同， 如果不能获取所 有进片信号和出片信号， 并根据进片信号和出片信号的差异选择不同的计数 公式，就无法对炉内片材数量进行准确计数。在监测装置中加入判断模块 13， 可以对炉子的所有进片信号和出片信号进行识别， 并选取对应的计数公式计 算炉内片材，使本实施例的监测装置可以适用于各种炉子的炉内片材的计数。
本发明另一个实施例的监测装置还可以具有显示功能， 如图 6所示， 炉 内片材监测装置 1 , 包括获耳 莫块 11、 计算模块 12、 判断模块 13和显示模 块 14。 获取模块 11用于获取片材传送过程中的进片信号和出片信号； 判断 模块 13用于根据炉子类型判断不同炉子对应的进片信号和出片信号；计算模 块 12用于根据进片信号和出片信号计算炉内片材的实际数量； 显示模块 14 用于将计算得到的炉内片材的实际数量进行显示。
计算模块 12计算得到的炉内片材的实际数量 送至显示模块 14显示， 用户可以更为直观地了解炉内帐料数量。
如图 7所示， 本发明一个实施例的炉内片材数量的监测方法， 包括如下 步骤：
步驟 200: 获取片材传送过程中的进片信号和出片信号；
步驟 201： 根据进片信号和出片信号计算炉内片材的实际数量； 步骤 202:将炉内片材数量的计数值和炉内片材数量的存在值进行比较， 根据比较结果执行预定的执行策略。
炉内片材数量的计数值是指根据进片信号和出片信号计算所得的炉内片 材的实际数量。 所述进片信号和出片信号可以是手臂发送的关于 "开炉门"、 "关炉门"的信号， 例如， 每次进片时手臂可以向炉子发送"开炉门 "的信号， 进片结束手臂撤出时可以向炉子发送"关炉门 "的信号； 其也可以是炉子自身 执行的信号， 例如， 每次进片时炉子都会执行一次"开炉门 "和"关炉门 "的动 作， 每次出片时也发送或执行类似这样的信号。 这样炉子就可以根据这些信 息判断送入的和取出的片材的实际次数， 从而获得炉内片材的实际数量即所 述炉内片材数量的计数值。
炉内片材数量的存在值是指炉子本身显示的炉内片材数量， 炉内片材数 量的存在值也可以是由炉子自身计算所得， 例如， 手臂在向炉子送入片材的 过程中， 会向炉子发送该片材本身相关信息， 如片材的尺寸、 厚度、 材质等 参数， 炉子可以根据这些片材本身相关信息的接收次数来判断炉内存在的片 材数量， 这个数量即为所述的炉内片材数量的存在值。
操作过程中， 如果手臂在传送的过程中某一时刻出现问题而停止动作， 比如， 手臂在送片时还未进入炉内就停止不动， 这时"开炉门"信息还未发送 或者炉子自身没有执行"开炉门 "信息， 但是炉子已经接收到了片材本身相关 信息， 炉子就对所述 "炉内片材数量的存在值"加 1 , 而所述 "炉内片材数量的 计数值 "却不变， 这样就导致了所述计数值和存在值不一致的情况。
上述只是列举了进片时还未进入炉内就停止不动这一种情况出现的计数 值和存在值不一致的过程描述， 实际中还存在其他各种导致计数值和存在值 不一致的情况， 例如， 手臂已进入炉内但未 出就停止不动， 或者， 手臂在 取片时 （即炉子出片时）各个阶段所发生的故障问题， 等等， 也可以按照上 述原理来计算所述计数值和存在值。
本发明实施例的炉内片材数量的监测方法， 例如， 首先利用机械手与炉 子之间的交互信号中的进片信号和出片信号计算得到炉内片材的实际数量， 然后再将炉内片材数量的计数值和炉内片材数量的存在值进行比较， 可以判 断出炉内帐料数量是否异常 （dismatch ) , 如果炉内片材数量的计数值和炉 内片材数量的存在值一致， 则说明炉内片材数量正常， 可以开启设备进行操 作； 如果炉内片材数量的计数值和炉内片材数量的存在值不一致， 则说明炉 内片材数量异常， 不能立即开启设备， 待消除帐料异常问题后再开启设备， 可以有效避免由于帐料异常所导致的破片问题。 本文中 "帐料，， ( inventory ) 是指炉内片材和炉内片材数据。
炉内片材数量的计数值和炉内片材数量的存在值不一致存在两种情况： 一种情况是炉内片材数量的计数值大于炉内片材数量的存在值， 此种情况必 须进行报警， 以防止由于炉内每一层均已送入片材， 机械手确因为炉内片材 数量的存在值与实际不符继续送入片材而导致的破片发生； 另一种情况是炉 内片材数量的计数值小于炉内片材数量的存在值， 此种情况可以进行报警也 可以不报警直接启动设备， 此种情况只是降低了工作效率， 即使直接启动设 备也不会发生破片。 上述报警可以为声音报警和或颜色报警， 如在设备上设 置报警铃和指示灯， 当炉内片材数量的计数值与炉内片材数量的存在值不一 致时， 报警铃发出声音警报， 指示灯以红色闪烁显示来提示设备发生帐料异 常， 此时用户可以中断机械手和炉子间的交互， 并检查炉内帐料情况。 同上 述炉内片材的监测方法， 步骤 201之前也可以包括： 根据炉子类型获得不同 炉子对应的进、 出片信号， 步骤 201之后也可以包括： 将炉内片材的实际数 量的计数值和炉内片材数量的存在值进行显示。 由于此前已经对上述步骤进 行过详细说明， 在此就不再做过多赘述。
如图 8所示， 本发明实施例的炉内片材数量的监测装置 2, 包括获取模 块 21、计算模块 22和执行模块 23。获取模块 21用于获取片材传送过程中的 进、出片信号；计算模块 22用于根据进、出片信号计算炉内片材的实际数量； 执行模块 23 用于将炉内片材数量的计数值和炉内片材数量的存在值进行比 较， 根据比较结果执行预定的执行策略。
炉内片材数量的计数值是指计算模块 22根据进、出片信号计算所得的炉 内片材的实际数量， 炉内片材数量的存在值是指炉子本身显示的炉内片材数 量， 炉内片材数量的存在值会受机械手或炉子报警而导致计数不准， 如机械 手出片， 但是此时机械手' 发生报警并未进行出片操作， 然而炉内会响应 机械手的出片动作， 将炉内片材数量的存在值降低， 因此炉内片材数量的存 在值会受机械手或炉子的报警影响而变得并不准确。 本发明的实施例在不加 装传感器等硬件的情况下， 通过软件就可以实现对炉内片材的准确计数， 可 以有效防止由于帐料异常而导致的破片问题， 较安装传感器的方法具有成本 优势。
本发明还提供了一种干燥炉的管控系统， 该管控系统包括上述炉内片材 监测装置， 由于炉内片材监测装置已在前文进行详细说明， 在此就不做过多 赘述。
对于上述实施例中所提供的装置、 系统和方法， 本实施方式还提供了以 下的详细描述， 以片材为玻璃基板为例， 以优选的方式更清晰地描述各种情 况下的状态模拟， 在手臂送片 （即炉子进片） 时的数据状态和结果状态， 如 表 1所示：
表 1
Figure imgf000011_0001
表中" Glass实体存在位置 "表示的是实际上玻璃基板所在的位置； "Glass Data存在位置"表示由炉子所接收到的片材本身相关信息（如尺寸、 厚度等） 而获得的玻璃基板所在的位置， 即， 如果炉子接收到了该玻璃基板的尺寸信 息， "Glass实体存在位置 "为" Robot",此时所述"存在值"改变； "Send Ready讯 号是否有 On"表示由炉子接收到的或执行的"开炉门 "等类似信息而做出判 断， "On"表示已接收到或已执行， 此时将所述"计数值"改变； "Result"表示炉 子和手臂的结果状态， 如果当前炉子存在计数值和存在值不一致的情况则炉 子发送警报即 "Oven Alarm", 需要进行故障排除或隐患排除使两个数值调整 为一致时才会无 Alarm, "Robot Alarm"的含义也是同理。
在手臂取片 （即炉子出片） 时的数据状态和结果状态， 如表 2所示： 表 2
Figure imgf000012_0001
关于表 2中各项的含义可参照表 1来解读。
此说明书中所描述的许多功能部件都被称为模块， 以便更加特别地强调 其实现方式的独立性。
本发明实施例中，模块可以用软件实现， 以便由各种类型的处理器执行。 举例来说， 一个标识的可执行代码模块可以包括计算机指令的一个或多个物 理或者逻辑块， 举例来说， 其可以被构建为对象、 过程或函数。 尽管如此， 所标识模块的可执行代码无需物理地位于一起， 而是可以包括存储在不同物 理上的不同的指令， 当这些指令逻辑上结合在一起时， 其构成模块并且实现 该模块的规定目的。
实际上， 可执行代码模块可以是单条指令或者是许多条指令， 并且甚至 可以分布在多个不同的代码段上， 分布在不同程序当中， 以及跨越多个存储 器设备分布。 同样地， 操作数据可以在模块内被识别， 并且可以依照任何适 当的形式实现并且被组织在任何适当类型的数据结构内。 所述操作数据可以 作为单个数据集被收集， 或者可以分布在不同位置上（包括在不同存储设备 上） ， 并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时， 考虑到现有硬件工艺的水平， 所以可以以 软件实现的模块， 在不考虑成本的情况下， 本领域技术人员都可以搭建对应 的硬件电路来实现对应的功能， 所述硬件电路包括常规的超大规模集成
( VLSI )电路或者门阵列以及诸如逻辑芯片、 晶体管之类的现有半导体或者 是其它分立的元件。模块还可以用可编程硬件设备，诸如现场可编程门阵列、 可编程阵列逻辑、 可编程逻辑设备等实现。
在本发明各实施例的方法中， 所述各步骤的序号并不能用于限定各步骤 的先后顺序， 对于本领域普通技术人员来讲， 对各步骤的先后变化也在本发 明的保护范围之内。
以上所述仅是本发明的示范性实施方式， 而非用于限制本发明的保护范 围， 本发明的保护范围由所附的权利要求确定。

Claims

权利要求书
1.一种千燥炉内片材数量的监测方法， 包括：
获取片材传送过程中的进片信号和出片信号， 所述进片信号包括由机械 手传送进炉子的片材数量信息， 所述出片信号包括由机械手传送出炉子的片 材数量信息；
根据所述进片信号和出片信号计算干燥炉内片材的实际数量。
2. 如权利要求 1所述的干燥炉内片材数量的监测方法， 其中， 在机械手 和炉子之间的交互信号中提取进片信号和出片信号。
3. 如权利要求 1或 2所述的干燥炉内片材数量的监测方法， 还包括： 将 计算得到的干燥炉内片材的实际数量进行显示。
4. 如权利要求 1-3任一所述的干燥炉内片材数量的监测方法， 根据进片 信号和出片信号计算干燥炉内片材的实际数量之前还包括： 根据炉子类型获 得不同炉子对应的进片信号和出片信号。
5.如权利要求 4所述的干燥炉内片材数量的监测方法， 其中， 所述进片 信号包括框胶硬化炉的进片信号、 清洗机后干燥炉的单片进片信号和清洗机 后千燥炉的双片进片信号； 所述出片信号包括框月交硬化炉的出片信号、 清洗 机后干燥炉的单片出片信号和清洗机后干燥炉的双片出片信号。
6.如权利要求 4所述的干燥炉内片材数量的监测方法， 其中， 当炉子为 框胶硬化炉时， 干燥炉内玻璃基板的实际数量=框胶硬化炉的出片信号中记 载的玻璃基板数量-框胶硬化炉的进片信号中记载的玻璃基板数量。
7.如权利要求 4所述的干燥炉内片材数量的监测方法， 其中， 当炉子为 清洗机后干燥炉时， 干燥炉内玻璃基板的实际数量 =清洗机后干燥炉的双片 出片信号中记载的玻璃基板数量 x2-清洗机后干燥炉的双片进片信号中记载 的玻璃基板数量 x2+清洗机后干燥炉的单片出片信号中记载的玻璃基板数量- 清洗机后干燥炉的单片进片信号中记载的玻璃基板数量。
8. 如权利要求 1-7任一所述的干燥炉内片材数量的监测方法， 还包括： 将干燥炉内片材的实际数量计数值和干燥炉内片材数量的存在值进行比 较， 根据比较结果执行预定的执行策略。
9. 如权利要求 8所述的干燥炉内片材数量的监测方法， 其中， 当干燥炉 内片材实际数量的计数值和干燥炉内片材数量的存在值不相等时， 则发出帐 料异常警报。
10.—种千燥炉内片材数量的监测装置，包括获耳 莫块和计算模块，其中， 所述获耳 ^莫块， 用于获取片材传送过程中的进片信号和出片信号， 所述 进片信号包括由机械手传送进炉子的片材数量信息， 所述出片信号包括由机 械手传送出炉子的片材数量信息；
所述计算模块， 用于根据进片信号和出片信号计算干燥炉内片材的实际 数量。
11.如权利要求 10所述的干燥炉内片材数量的监测装置， 还包括用于根 据炉子类型判断不同炉子对应的进片信号和出片信号的判断模块。
12.如权利要求 10所述的干燥炉内片材数量的监测装置， 还包括用于将 计算得到的干燥炉内片材的实际数量进行显示的显示模块。
13. 如权利要求 10所述的千燥炉内片材数量的监测装置，还包括用于将 千燥炉内片材数量的计数值和干燥炉内片材数量的存在值进行比较， 根据比 较结果执行预定的执行策略的执行模块。
14.一种千燥炉的管控系统， 包括如权利要求 10-13任一项所述的监测装 置。
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