JP2010048525A - Radio monitoring control system used in fan filter unit of clean room - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio monitoring control system used in a fan filter unit of a clean room used in any factory having the clean room. <P>SOLUTION: The radio monitoring control system is composed of a plurality of fan filter units, a radio reading unit and a real time monitoring control unit. Each of the fan filter units includes a fan and a detection recognition tag attached to the fan and receiving a recognition signal of the detection recognition tag. The radio reading unit includes a plurality of radio readers, and each radio reader communicates with the prescribed number of detection recognition tags to read out the recognition signals of the detection recognition tags. The real time monitoring control unit is connected with the radio reading unit and reads out the recognition signal of the detection recognition tag. The fan filter units are respectively effectively monitored and controlled by reading the recognition signal by a radio system, and a great deal of equipment, wires and construction costs can be saved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wireless monitoring control system for a fan filter unit, and more particularly to a wireless monitoring control system used for a fan filter unit in a clean room, which effectively monitors and controls the usage status of a large number of fan filter units by a wireless system. At the same time, it relates to a large amount of equipment, wires, and those that efficiently reduce construction costs.

  In general, high-tech factories such as science and technology electronics factories are required to clean up facilities in the factory environment, manufacturing processes, etc. for factory environments that require advanced air-conditioning circulation filters (eg, clean rooms and other clean rooms) In order to achieve high air quality in the factory, a large number of fan filter units such as AC and DC fan units are installed on the ceiling of the factory, and air is circulated and filtered to perform air conditioning and cleanliness. Meets the requirements of

  In so-called high-tech factories and clean rooms, in order to maintain the cleanliness of the work area, it is necessary to circulate a large amount of airflow to remove contaminated dust. When a clean room is classified according to the arrangement of the blower, it is divided into two types: a central system and a fan filter unit system. The central system is blown by a single large fan, while the fan filter unit system combines a small fan and a filter screen, and a large fan is used on the ceiling of a clean room or high-tech building without using a large fan. Install. The fan filter unit system has advantages such as high convenience, short construction period, easy control of contamination, and easy balance adjustment of the whole system. Adopted.

  However, the fan filter unit system is inconvenient for the field staff due to the large number of fan filter units, and most of the current fan filter unit systems are modularized local control, and the whole is in series or parallel system. Connected with. Therefore, in the fan filter unit system, when one or two fan filter units are abnormally operated in terms of operation, it is difficult to determine the above-described defective fan filter unit, and the maintenance effect is not preferable.

  In view of this, the inventor has researched and developed a clean room fan monitoring control system. FIG. 1 is a schematic diagram of a monitoring control system used for a conventional clean room fan. As illustrated, the monitoring control system 100a includes a plurality of fan filter units 10a, a plurality of programmable logic controllers 20a, a plurality of hubs 30a, a monitor 40a, and a computer 50a. Among them, each fan filter unit 10a is connected to the programmable logic controller 20a, each programmable logic controller 20a is connected to each hub 30a, the hub 30a is connected to the monitor 40a, and finally the monitor 40a is connected to the computer 50a, Accordingly, the monitor 40a monitors the usage status of the fan filter unit 10a (for example, whether the rotation speed is normal or not), and the operation of the fan filter unit 10a is controlled by the computer 50a.

  However, conventionally, in order to monitor and control the operation of each fan filter unit 10a, a large number of programmable logic controllers 20a, hubs 30a, and wires connecting the programmable logic controller 20a and the fan filter unit 10a must be used. . For this reason, various equipment, a wire, and construction cost will inevitably increase.

  Further, if the factory area is increased and the number of fan filter units 10a is increased as required, the use of the programmable logic controller 20a, the hub 30a, and the wires will cause a significant increase in the material cost, which in turn increases the quantity. The construction difficulty increases and costs increase.

  Therefore, as can be seen from the above, it has become clear that the actual use of the monitoring and control system used for the fan of the conventional clean room is inconvenient and disadvantageous, so that improvement is required.

  In consideration of these matters, the present inventor has made observations by taking advantage of the related experience that has been engaged in this direction for many years against the fact that the cost of the factory expansion is greatly increased from the viewpoint of the number of fan filter unit monitoring controls. Then, the present invention which submits the present invention in which the above disadvantages are effectively improved by rational design according to the principle is submitted.

  The main object of the present invention is to provide a radio supervisory control system used for a clean room fan filter unit used in a clean room of any factory. This is a factory expansion from the viewpoint of the number of fan filter units. In order to cope with the problem of incurring an increase in cost at the time, the wireless monitoring control system is designed with special consideration. In addition, a sensor identification tag is attached to each of the fans of the plurality of fan filter units mounted on the ceiling of the factory, and the plurality of wireless readers of the wireless reader unit communicate with the sensor identification tag wirelessly. Replacing a large amount of conventional equipment and wires.

  Therefore, by reading the identification signal in a wireless manner, each fan filter unit can be effectively monitored and controlled, and at the same time, a large amount of equipment, wires, and construction costs can be effectively saved to simplify and facilitate the construction process. Can do.

  In order to achieve the above object, the present invention provides a wireless monitoring control system used for a clean room fan filter unit used in a clean room of any factory, and the wireless monitoring used for the clean room fan filter unit. The control system includes a plurality of fan filter units, a wireless reading unit, and a real-time monitoring control unit.

  Each fan filter unit includes a fan and a sensing identification tag attached to the fan for receiving an identification signal of the fan. The wireless reading unit includes a plurality of wireless reading devices, and each wireless reading device communicates with a predetermined number of sensing identification tags to read an identification signal of the sensing identification tag. The real-time monitoring control unit is connected to the wireless reading unit and receives an identification signal of the sensing identification tag read by the wireless reading unit.

  In this way, the wireless reading method between the wireless reading unit and each sensing identification tag effectively monitors and controls the usage status of a large number of fan filter units, and a large amount of equipment, wires, and construction costs are effective. It can be saved and can simplify the construction process and make it convenient.

  In order to further understand the technology, means, and effects employed to achieve the intended object of the present invention, the objects and features of the present invention will be described by referring to the following detailed description of the present invention and the accompanying drawings. However, it can be understood deeply and concretely. However, the attached drawings are provided for reference and explanation only, and do not limit the present invention.

  For a better understanding of the technical features and implementation of the present invention, reference is made to the description of the invention listed below and the accompanying drawings.

  2 and 3 are a schematic plan view and a schematic side view of the wireless monitoring control system 100 used in the fan filter unit of the clean room according to the present invention. In this embodiment, the wireless monitoring control system 100 used for the fan filter unit in the clean room is used in a clean room (not shown) of the TFT factory. A wireless monitoring control system 100 used for a clean room fan filter unit includes a plurality of fan filter units 1, a wireless reading unit 2, and a real-time monitoring control unit 3.

  Each fan filter unit 1 includes a fan 12 and a sensing identification tag 14 attached to the fan 12 and receiving an identification signal of the fan 12, and each sensing identification tag 14 is an on / off state of each fan 12, a failure condition, or A driving signal is detected and an identification signal is generated. In the present invention, the sensing identification tag 14 is a related member such as a sensing identification card or a sensing identification device. Any member or device belonging to the same category and used for the sensing and discriminating action falls within the scope of use of the present invention.

  The wireless monitoring control system 100 used for the fan filter unit of the clean room according to the present invention is exemplified as being used in a clean room of a TFT factory having an area scale of at least 200 meters × 100 meters. It is not limited to factories and area sizes, and can be used in clean rooms with different factory areas in any manufacturing process, and any type of factories that require air conditioning or filters such as electronic factories or clean rooms are within the scope of use of the present invention. enter.

  For this reason, the fan 12 achieves effects such as clean room air filtering, adjustment, or temperature change, and each sensing / identifying tag 14 detects the on / off state, failure state, or operating state of each fan 12. To do.

  The wireless reading unit 2 includes a plurality of wireless reading devices 22, and each wireless reading device 22 communicates with a predetermined number of sensing identification tags 14 and reads identification signals in the sensing identification tags 14. Among them, the wireless reading unit 2 is installed above the top of the fan filter unit 1 and receives the identification signal detected by the sensing identification tag 14 of the fan 12 in a wireless manner, so that each wireless reading device 22 has a predetermined number of sensing identification tags. 14 can communicate. However, mounting the wireless reading unit 2 in the present invention above the top of the fan filter unit 1 is only one of the implementation methods, and restricts the relative position between the wireless reading unit 2 and the fan filter unit 1. No. The user can install the wireless reading unit 2 at other positions according to the required situation and receive the sensor identification tag 14 by a wireless method.

  In this embodiment, each wireless reader 22 can communicate with at least 50 sensing identification tags 14 (or more than 50 sensing identification tags 14). Among them, each wireless reader 22 is an infrared frequency reader or a radio frequency reader. In addition to the two types of readers described above, the wireless reader 22 may be another type of associated wireless reader. The reception range of each wireless reader 22 is configured to cover the sensor identification tags 14 within at least 20 meters × 20 meters so that the plurality of sensor identification tags 14 can be wirelessly read. In addition, the user can change the reception range of the wireless reader 22 as necessary.

  The real-time monitoring control unit 3 is connected to the wireless reading unit 2 and receives the identification signal of the sensing identification tag 14 received by the wireless reading unit 2. The real-time monitoring control unit 3 includes at least one monitor 32, at least one computer 34, and man-machine interface software 36. The monitor 32 displays the identification signal of the wireless reader 22. The computer 34 reads the identification signal of the wireless reader 22 in the wireless reading unit 2 and controls according to the identification signal, thereby controlling the on / off state of each fan 12 or judging the failure status of each fan 12. Eliminate faults and control operation. The man-machine interface software 36 is connected to the monitor 32 and the computer 34, respectively, converts the identification signal received by the wireless reading unit 2 into a predetermined signal format, and transmits the identification signal to the monitor 32 and the computer 34 respectively. Is displayed on a monitor screen (not shown) of the monitor 32, and at the same time, the computer 34 is caused to read the identification signal, and control to perform related work such as on / off control, failure determination and elimination, and operation control. .

  The wireless reading devices 22 of the wireless reading unit 2 are electrically connected in series and connected to the real-time monitoring control unit 3 to simultaneously transmit an identification signal to the real-time monitoring control unit 3. The monitor 32 of the real-time monitoring and control unit 3, the computer 34, and the man-machine interface software 36 receive the identification signal of the sensing identification tag 14 of each fan 12 by the wireless reading unit 2, and the signal conversion of the identification signal, the screen display, and Operations such as on / off, failure or operation control can be performed.

  In this way, the usage status of a large number of fan filter units 1 is effectively monitored and controlled by a wireless reading method, and a large amount of equipment, wires, and construction costs are efficiently reduced.

  FIG. 4 is a flowchart of a control method by the wireless monitoring control system used for the fan filter unit of the clean room of the present invention. The flowchart of the method is as follows.

  (1) In the first process, first, the identification signal of the fan 12 is received by attaching the sensing identification tag 14 to each fan 12 of the plurality of fan filter units 1 (S101).

  (2) In the second process, each wireless reading device 22 of the wireless reading unit 2 communicates with a predetermined number of sensing identification tags 14 in a wireless manner to read the identification signal of the sensing identification tag 14 (S103).

  (3) In the final process, the real-time monitoring control unit 3 connected to the wireless reading unit 2 receives the identification signal read by the wireless reading device 22, and displays and controls the identification signal (S105).

  According to the method used in the wireless monitoring control system, that is, the wireless reading method between each wireless reading device 22 of the wireless reading unit 2 and the sensing identification tag 14, the usage status of a large number of fan filter units 1 is effectively monitored and controlled. At the same time, not only can a large amount of equipment, wires, and construction costs be efficiently saved, but at the same time the difficulty of construction can be simplified.

  The real-time monitoring control unit 3 includes a monitor 32, a computer 34, and man-machine interface software 36. The process executed by the real-time monitoring control unit 3 includes the following processes. (A) The man-machine interface software 36 converts the identification signal received by the wireless reader 22 of the wireless reader unit 2 into a predetermined signal format and transmits it to the monitor 32 and the computer 34, respectively. (B) The monitor 32 displays the identification signal read by each wireless reader 22 on a monitoring screen (not shown). (C) The computer 34 reads the identification signal received by each wireless reader 22 and performs control based on the identification signal to perform on / off control, failure determination and elimination, and operation control.

  Thus, after the identification signal of the sensing identification tag 14 is converted by the monitor 32 of the real-time monitoring control unit 3, the computer 34, and the man-machine interface software 36, the usage status of the fans 12 of each fan filter unit 1 (for example, on / Off state, failure status, or operation status) can be displayed and monitored, and related operations such as on / off control of each fan 12, determination of failure and elimination thereof can be effectively controlled and managed.

  In summary, the wireless monitoring control system used for the fan filter unit in the clean room uses the sensing identification tag 14 attached to each fan, and the wireless reading unit 2 reads a plurality of sensing identification tags 14 by a wireless method. The present invention has the following features.

  (1) It replaces the conventional method using a large amount of wires and increasing the construction cost by the wireless reading method between the sensing identification tag and the wireless reading device.

  (2) It is possible to easily respond to the expansion of the clean room (factory) area and the number of monitoring points of the fan filter unit, and a simple, convenient and quick construction effect can be achieved.

  (3) Using the combination of the sensing identification tag, the wireless reader, and the real-time monitoring control unit, the monitoring control effect of the clean room fan filter unit can be simplified and easily achieved.

  (4) In the real-time monitoring control unit, by using the man-machine interface software, the fan filter unit has an effective monitoring control effect without change.

  The above description is only a detailed description and drawings in the best specific embodiment of the present invention, and the features of the present invention are not limited thereto, and the present invention is not limited thereby. The entire scope of the present invention is based on the scope of the claims, and all spirits that conform to the scope of the claims of the present invention and embodiments that are similarly modified should be included in the scope of the present invention. Any changes or modifications readily conceivable by those skilled in the art are intended to be included within the scope of the present patent application.

It is the schematic of the monitoring control system used for the fan of the conventional clean room. It is a schematic plan view of the radio supervisory control system used for the fan filter unit of the clean room of this invention. It is a schematic side view of the radio supervisory control system used for the fan filter unit of the clean room of this invention. It is a flowchart of the usage method of the radio | wireless monitoring control system of this invention.

Explanation of symbols

100a Monitoring and Control System Used for Clean Room Fan 10a Fan Filter Unit 20a Programmable Logic Controller 30a Hub 40a Monitor 50a Computer 100 Radio Monitoring Control System Used for Clean Room Fan Filter Unit 1 Fan Filter Unit 12 Fan 14 Sensing Identification Tag 2 Wireless Reading Unit 22 Wireless reader 3 Real-time monitoring and control unit 32 Monitor 34 Computer 36 Man-machine interface software

Claims (5)

In the wireless monitoring and control system used for the clean room fan filter unit used in any factory clean room,
A plurality of fan filter units each comprising a fan and a sensing identification tag attached to the fan for receiving an identification signal of the fan;
A plurality of wireless readers, each wireless reader communicates with a predetermined number of sensing identification tags in a wireless manner, and reads an identification signal of the sensing identification tag;
A real-time monitoring and control unit connected to the wireless reading unit and receiving an identification signal of the sensing identification tag read by the wireless reading unit, and displaying and controlling the identification signal;
A wireless monitoring control system used for a fan filter unit in a clean room.   The wireless monitoring control system used for a fan filter unit of a clean room according to claim 1, wherein the sensing identification tag is a sensing identification card or a sensing identification device.   The wireless monitoring control system used for the fan filter unit of the clean room according to claim 1, wherein each wireless reading device is a wireless frequency reading device or an infrared frequency reading device.   The real-time monitoring control unit includes at least one monitor and a computer, the monitor displays an identification signal of the reader, and the computer reads the identification signal received by the wireless reading unit and controls the identification signal. The wireless supervisory control system used for the fan filter unit of the clean room according to claim 1.   The real-time monitoring control unit includes man-machine interface software, and the man-machine interface software converts the identification signal received by the wireless reading unit into a predetermined signal format and transmits the signal to the monitor and the computer, respectively. 5. The wireless monitoring control system used for a fan filter unit in a clean room according to claim 4, wherein the computer is caused to read and control at the same time as the identification signal is displayed on a monitor.

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