JPH0984148A - Data collection device - Google Patents

Abstract

(57) [Summary] (Corrected) [Problem] Streamlining data collection work, referring to the data that has already been accumulated, and giving appropriate instructions to maintenance personnel, and accumulating data necessary for facility diagnosis. Make it easier. An input / output unit 107, a display unit 104, and an operation input unit 10 which are connected to an external device including a measurement sensor.
5, a storage unit 103 for temporarily storing various signals such as a measurement signal and a video signal, and a wireless transmission / reception unit 106,
A portable reader / writer device in which a handy sensor 2 for converting the measured value obtained in the process into a signal and outputting the signal is directly connected, and is combined with a one-point or multi-point sensor data carrier for converting the measured value into a wireless signal and outputting the signal. Enter from 5. A card reader 8 for an LSI card storing a plurality of measured values in the process is provided, and measured values from a single-point or multi-point sensor data carrier are remotely transmitted via a wireless transmission / reception means 106 from the reader / writer device. Collect from the instrument room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-scale process industry represented by steel mills, petrochemicals, oil refineries, etc., when maintenance personnel visit the process and collect measurement values at will. It concerns a streamlined device.

[0002]

2. Description of the Related Art Conventionally, various devices constituting a large process such as a steel mill or a petrochemical factory are equipped with a large amount of various measuring sensors such as temperature, pressure and flow rate required for operation, and operating ends. Remote control is performed by connecting to a control device installed in an instrument room that is separated by 10 to several hundred meters. FIG. 7 is a diagram for explaining a signal transmission system of a remote control device that has been conventionally implemented. In the figure, f _{1 to} h ₂ are examples of sensors attached to various processes. What these symbols represent is, for example, a flow rate sensor attached to a pipeline, a pressure sensor attached to a compressor, a vibration or gas sensor, or, of course, a normal field indicator. g ₁ and h ₁ are control valves at the operating end. Conventionally, there are the following methods of transmitting these signals. That is, the detection signals of the measurement sensors f _{1 to} f _{3 and the} like are converted into a high-frequency unified signal by the field bus converter 17, and the control device 1 is supplied via the field bus 18.
4 is transmitted. Further, the detection signal of the measurement sensor h ₂ is transmitted to the control device 14 using the ordinary electric wire 19. Such a method is usually performed.

However, maintenance personnel constantly make patrols to check whether the above process is operating normally or whether the attached measurement sensor is operating normally. In this case, in addition to various data obtained from the control device 14 in the instrument room, it is necessary to refer to various kinds of measurement data such as local sound and vibration of the device constituting the process mainly based on the experience of the maintenance personnel. Occurs. A sensor that collects such data is installed and used only when maintenance personnel need it, or even if it is always installed, there is no wiring to the instrument room and data is collected by the field indicator installed in the device. It was normal to read.

[0004]

As described above, the maintenance staff reads the data from the on-site indicator at the patrol destination, performs the calculation processing in some cases, and records these together with the judgment.
A series of work is being carried out, such as performing necessary treatments, returning to the instrument room, reporting, and referring to various data to perform the next treatments. These works are performed day and night in spring, summer, autumn, winter and day to day. In addition, it is difficult to grasp the location of maintenance personnel on patrol at a large factory that has a large number of large-scale processes on a vast site.In particular, when an accident occurs, the location of the maintenance personnel, the parts of the equipment, the method of treatment, etc. can be accurately identified. It is extremely difficult to report. The purpose of the present invention is to streamline the work of collecting data, to promptly refer to the data that has already been accumulated, to be able to give appropriate instructions from the instrument room to maintenance personnel, and it is essential for preventive maintenance. It is an object of the present invention to provide a data collection device that can more easily store equipment diagnostic data.

[0005]

The data collecting apparatus of the present invention is constituted by the following means. (1) A data collection device for collecting status data of each facility installed at a site, an input / output unit for loading and extracting the status data, a storage unit for storing the status data, and Wireless transmission / reception means for sending out the status data stored in the storage means and receiving wireless data sent from other equipment, and at least displaying collected equipment status data or wireless data sent from other equipment And a display means for displaying the data, which is configured to be portable freehand. (2) The input / output unit is configured to input a signal from a handy sensor that converts and outputs the obtained equipment status data to directly collect the equipment status data. The data collection device according to claim 1. (3) The input / output unit uses a wireless signal unique to each device to convert the obtained equipment state data into the wireless signal and outputs the single-point sensor data carrier, or a plurality of equipment states. Input from a reader / writer device that sends a start signal to the multi-point sensor data carrier that converts data into the wireless signal and outputs the wireless signal, and receives the wireless signal sent back as a result and outputs a converted signal. The data collection device according to claim 1, wherein (4) The data collecting apparatus according to claim 1, wherein the input / output unit inputs a signal read from an LSI card in which measured values of a plurality of sensors are converted at a specified time and stored. (5) The wireless transmission / reception means is configured to be able to exchange data with a remote instrument room.
Data collection device as described.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a circuit configuration of a data collection device of the present invention. 2 is a handy sensor. 5
Is a portable reader / writer device. Through the portable reader / writer device 5, a single point sensor data carrier 3 (FIG. 2) or a multipoint sensor data carrier 4 (FIG. 2) is wirelessly (W
L) The activation signal is given, and the target measurement data is collected from the radio signal returned as a result. Reference numeral 8 is an LSI card reader. Data is read from the LSI card in which a plurality of measurement data in the process is stored and collected by the data collecting device. Reference numeral 101 denotes a central processing unit of the present data collection device. 102 is a ROM and a RAM, and is R
The OM mainly stores a basic program for operating the apparatus, and the RAM mainly stores temporarily used data. A storage unit 103 selects a large capacity and high speed suitable for storing measurement data, video data and the like. 104 is a display means. Use a liquid crystal display or LED display.

Reference numeral 105 denotes an input operation means for the data collection device. Although a touch sensor using a part of the display means 104 is shown in the figure, a switch or other pointing device may be used. Reference numeral 106 is a wireless transmission / reception means. A radio wave (carrier wave) having a frequency designated by a signal to be transmitted from a data collection device is modulated by frequency modulation or another method, amplified, and transmitted. On the other hand, the received radio wave is demodulated and a signal is taken out and sent to the data collection device. Reference numeral 107 denotes an input / output unit for transmitting / receiving the signal to / from a host computer equipped with a wireless transmitting / receiving unit or another data collecting device. An interface (IF) that connects this data collection device to an external device, and is composed of the following as necessary. 108 is the operation display I
F. The display means 104 is connected and driven. 1
Reference numeral 09 is an input operation IF. The input operation means 105
Connect. Use the interface that is compatible with the selected input operation method. 110 is a communication control IF. The wireless transmission / reception means 106 is connected to control data transfer.

Reference numeral 111 is a reader / writer IF. The reader / writer 8 is connected to control data transfer. 1
Reference numeral 12 is a handy sensor IF. A maintenance person directly collects the measurement data from the handy sensor 2 which is arbitrarily attached to the equipment. Reference numeral 113 is an LSI card reader IF. The card reader 8 is driven to read the measurement data stored from the LSI card to the data collection device. 114
Are a control bus and a data bus that constitute the data collection device.

FIG. 2 is a block diagram showing an embodiment of the present invention. The reference numerals correspond to those shown in FIG. 1 is the data collection device described in FIG. Signals are exchanged with external devices through the input / output means 107. 2 is a handy sensor. Sound, vibration, current, and other sensors that collect various types of local data of equipment. Normally outputs an analog signal. Install and use it only when maintenance personnel need it. 3 is a single-point sensor data carrier. From the portable reader / writer device 5 to the wireless (W
Upon receiving the activation signal of L), the measurement data is converted into a radio signal and sent back to the portable reader / writer device 5. 4 is a multi-point sensor data carrier. Single point sensor data carrier 3
In the same manner as the above, the portable reader / writer device 5 wirelessly (W
In response to the activation signal of L), a large number of measurement data are converted into wireless signals and sent back to the portable reader / writer device 5. 6 is a multi-point sensor data storage device. A plurality of measurement data in the process is signal-converted at a designated time and stored in the LSI card 7 inserted in advance. Separately, the stored contents of the LSI card 7 are read out to the data collection device 1 via the LSI card reader 8 and collected.

FIG. 3 is a block diagram showing a circuit configuration of the multipoint sensor data carrier 4 and the portable reader / writer device 5. An example of the operation of collecting data from the data collection device 1 will be briefly described. Data collection device 1 to communication IF1
A data collection command signal is sent to the portable reader / writer device 5 via 10 (terminal m). The portable reader / writer device 5 sends a predetermined activation signal 501 to the antenna 404 of the multipoint sensor data carrier 4 via the antenna 508. Usually, a carrier presence signal is often used. This signal causes the multipoint sensor data carrier 4 to automatically start the automatic circuit 40.
2 is activated, power is supplied from the power supply 401 to each circuit, and the whole is activated. Next, the multipoint sensor data carrier 4 collates the identification number 502 sent from the portable reader / writer device 5 with its own device identification number 407, and if they match, returns the fact. Next, the multipoint sensor data carrier 4 sends back the data of the sensors connected to the sensor input terminals C ₁ and C ₂ according to the sensor number sent from the data collection device 1. This signal is switched by the circulator 505 of the portable reader / writer device 5, passed through the demodulation circuit 506 and subjected to necessary signal conversion by the output circuit 507, and then the terminal m
To the data collection device 1, where data is collected. The control circuit 503 decodes the signal from the data collection device 1 and controls the operations of the portable reader / writer device 5 and the multipoint sensor data carrier 4.

The multipoint sensor data carrier 4 and the portable reader / writer device 5 include necessary modulation circuits 408 and 504, demodulation circuits 405 and 506, etc., respectively. What kind of system is used in the present invention? I will omit it because it may exist. The above is multi-point sensor data carrier 4
The single-point sensor data carrier 3
In the case of 1, the description is omitted because it is the same except that the number of sensor inputs is one. FIG. 4 is a conceptual diagram illustrating an embodiment of the data collection device of the present invention. The reference numerals used correspond to the reference numerals in FIG. 1 described above. It becomes a freehand by hanging the data collecting device 1 around the neck with the band 41. The current value of the line 42 is being measured by operating the handy sensor 2. (This is an example of the clip-on ammeter 43.) This output signal is input to the data collection device 1 and displayed by the display 104.

FIG. 5 shows the display means 104 of the data collection device 1.
It is a figure showing the screen of. As an example, (a) illustrates the position of the tank and the part of the device in the process.
(B) is a chart displaying measured values and the like, and (c) is a trend graph of measured values. The necessary symbols are appropriately selected and displayed. Although a touch screen is illustrated on the display unit 104 as the input operation unit 105,
A key switch, mouse, or other pointing device can be used as appropriate. Reference numeral 106 mainly indicates an antenna portion of the wireless transmitting / receiving means. FIG. 6 is a diagram for explaining the system of signal transmission of the data collection device of the present invention. The reference numerals used correspond to the reference numerals in FIG. 1 described above. The data collection device 1 can be used by a person to carry it and can be connected to the handy sensor 2 directly to collect arbitrary data of the equipment. Further, a wireless (WL) activation signal is given to the single-point sensor data carrier 3 or the multi-point sensor data carrier 4 which is located away from the data collection device 1 via the portable reader / writer device 5, and as a result, Target measurement data can be collected from the returned radio signal.

On the other hand, the signals of the sensors d ₁ and d ₂ are stored in the LSI card 7 after the signal conversion of a plurality of measurement data at a designated time by the multipoint sensor data storage device 6. By separately inserting the LSI card 7 into the card reader 8 connected to the data collection device 1 or the host card reader 11 connected to the host computer 13, the stored contents are read and the measurement data is collected. In addition, the data collection device 1 transmits data by wireless signals to and from the host computer 13 via the host wireless transmission / reception means 10 connected by the communication line 12 or to the data collection device carried by each maintenance person. You can give and receive. The host computer 13 collects and analyzes the measurement data and accumulates it as data necessary for facility diagnosis and maintenance. Based on these data, it is possible to provide appropriate instructions and data in response to requests from maintenance personnel. The host computer 13 exchanges information necessary for operating the equipment, such as exchange of sensor data, analysis data and the like, and abnormality notification, with the control device 14 and others via the upper communication line 15.

[0014]

According to the present invention, the following effects can be obtained. (1) According to this data collection device, the data of the sensor is immediately stored in the mobile terminal device by connecting the sensor installed by the maintenance staff at his / her own discretion to the data collection device. By using a portable reader / writer device instead of reading the meter, the necessary data is stored in the data collection device only by starting the operation toward the sensor data carrier or multi-point sensor data carrier that has been installed in advance. To be done. Data can be easily collected from high places where people cannot enter or data in bad environments. (2) When it is necessary to collect data at a specified time or data before and after the occurrence of an abnormal phenomenon for reasons such as investigating the cause of abnormalities in the device, use the multipoint sensor data storage device A plurality of measurement data of (1) are converted into signals at a designated time and stored in the LSI card 7 inserted in advance. Separately, the stored contents of the LSI card 7 are read out to the data collection device 1 via the LSI card reader 8 and collected. According to this method, an unattended device can automatically collect data.

(3) The data collected as described above is sent from the data collecting device to another data collecting device or the host computer via the wireless transmission / reception means to seek the judgment of other maintenance personnel, or in the instrument room. By referring to the accumulated data, it is possible to promptly determine the treatment and instruct the maintenance personnel. (4) The freehand mounting method of the data collection device enables the operation of the sensor and the operation of the mobile terminal device at the same time, which greatly enhances the workability of the maintenance personnel. (5) In addition to being able to streamline the work that has traditionally been carried out in the wind and rain regardless of whether it is spring, summer, autumn, winter, or day or night,
By connecting the portable terminal device to the host computer through the wireless transmission / reception means, it becomes easier to collect and store the facility diagnostic data which is indispensable for the operation and preventive maintenance of the remote control device connected thereto. As described above, the present invention has a great effect that it is possible to overcome the great difficulty involved in the data collection work by improving the existing principle and equipment and systemizing them.

[Brief description of drawings]

FIG. 1 is a block diagram of a circuit configuration of a data collection device of the present invention.

FIG. 2 is a configuration diagram showing an example of an embodiment of a data collection device of the present invention.

FIG. 3 is a block diagram showing a circuit configuration of a multipoint sensor data carrier and a portable reader / writer device.

FIG. 4 is a diagram illustrating a usage pattern of the present data collection device.

FIG. 5 is a diagram showing a display example on a display means.

FIG. 6 is an explanatory diagram of a signal transmission system of the data collection device.

FIG. 7 is an explanatory diagram of a signal transmission system of a control device that describes a conventional example.

[Explanation of symbols]

1 Data Collection Device 2 Handy Sensor 3 Single Sensor Data Carrier 4 Multipoint Sensor Data Carrier 5 Portable Reader / Writer Device 6 Multipoint Sensor Data Storage Device 7 LSI Card 8 LSI Card Reader 10 Host Wireless Transmitter / Receiver 11 Host Card Reader 12 Communication Line 13 Host computer 14 Control device 15 Upper communication line 17 Fieldbus converter 18 Fieldbus 19 Electric wire 41 Band 42 Line 43 Clip-on ammeter 101 CPU 102 ROM / RAM 103 Storage means 104 Display means 105 Input operation means 106 Wireless transmission / reception means 107 Input Output means 108 Operation display IF 109 Input operation IF 110 Communication control IF 111 Reader / writer IF 112 Handy sensor IF 113 LSI card reader IF 114 Data / control Bus 401 Power supply 402 Automatic startup circuit 403 Switch 404 Antenna 405 Demodulation circuit 406 Signal detection circuit 407 Device identification number 408 Modulation circuit 409 External input circuit 501 Activation signal 502 Identification number 503 Control circuit 504 Modulation circuit 505 Circulator 506 Demodulation circuit 507 Output circuit 508 Antenna a, b, d ₁ , d _{2 to} h ₁ , h ₂ Sensor number WL Radio signal IF interface

Claims (5)

[Claims] 1. A data collection device for collecting status data of each facility installed on site, comprising input / output means for fetching and extracting the status data, and storage means for storing the status data. Wireless transmission / reception means for transmitting the status data stored in the storage means and for receiving wireless data sent from another device, and at least the collected equipment status data or wireless data sent from another device And a display means for displaying, and is configured to be portable freehand. 2. The input / output means inputs a signal from a handy sensor for converting the obtained equipment state data into a signal and outputs the signal, so that the equipment state data can be directly collected. The data collection device according to claim 1, characterized in that 3. A single-point sensor data carrier for converting the obtained equipment state data into the wireless signal and outputting the same by using a wireless signal unique to each device, or a plurality of the equipment. A reader / writer device that sends a start signal to the multipoint sensor data carrier that converts the state data of the above to the wireless signal and outputs the wireless signal, receives the wireless signal that is returned as a result, and outputs the converted signal. The data collection device according to claim 1, wherein the data is input from. 4. The data collecting apparatus according to claim 1, wherein the input / output unit inputs a signal read from an LSI card in which measured values of a plurality of sensors are converted and stored at a designated time. apparatus. 5. The data collection device according to claim 1, wherein the wireless transmission / reception means is configured to exchange data with a remote instrument room.