JP2002247221A - Remote monitor system using cellular phone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitor system capable of easily carrying out monitoring of equipment existing at a place remote from the plate to carry out monitoring, especially equipment installed on a traveling object. SOLUTION: The remote monitor system using a cellular phone consists of: units 5 and 9 on the side of a field for collecting the monitor signals of a device installed on the side of the field and transmitting the collected signals through a cellular phone 12a; and a remote monitor device 17 for receiving the monitor signals transmitted by the cellular phone through a cellular phone 12b and analyzing the received monitor signals to carry out monitoring of the device installed at the field side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to remote monitoring (maintenance) of equipment located in a remote place, particularly, installed in a mobile body, using a mobile phone.

[0002]

2. Description of the Related Art As a conventional technique of this kind of remote maintenance device, there is one disclosed in Japanese Patent Application Laid-Open No. 2000-259214. Hereinafter, the remote maintenance device described in the above publication will be described. FIG. 2 is a diagram showing the configuration of a conventional remote maintenance device, in which the operation check and correction of a program at a site where the programmable logic controller (PLC) 1 is installed are performed by a remote terminal device 9 remote from the site. Remote maintenance is performed.

The details of the above-mentioned apparatus are as follows. On the site side, a site computer 13 is connected to a programmable logic controller (PLC) via an external interface 6. The on-site computer 13 includes a loader 4 and a file processing unit 17, and the input and output of the on-site computer 13 are connected to a PSIN or ISDN network (fixed network) 12 via a PIAFS-compatible modem 14B. The network 12 is connected to a base station 16 corresponding to a remote station. 10b of FIG. 2,
11b shows a command log file and a transmission command log file, and 18b and 19b show a response log file and a transmission response log file.

A remote terminal device 9 transmits a PIAF to a mobile phone 15 which is a remote station corresponding to the base station.
It is connected to the input device (keyboard) 3 and the output device 8 through the S-compatible modem 14A.
Further, 10a and 11a in FIG. 2 indicate a command log file and a transmission command log file, and 18a and 19a indicate a response log file and a transmission response log file.

[0005] In the conventional remote maintenance device having the above-described configuration, first, the remote terminal device 9 installed at a place remote from the site is connected to the network 12 by a dial-up connection using the mobile phone 15. Then, the remote terminal device and the site computer 13 are connected via the network 12. Next, the remote terminal device 9
Sends a confirmation and correction command to the on-site programmable logic controller 1 to the on-site computer 13,
The operation of the program of the on-site programmable logic controller 1 is confirmed or corrected. In addition, the result of the program operation check or correction is transmitted to the remote terminal device 9 via the network 12 and output to an output device (for example, a display or a printer).

As described above, the conventional remote maintenance device has a configuration in which the programmable logic controller 1 provided at the site is connected to the network 12, which is a fixed network, via the site computer 13. Therefore, there is a problem that the degree of freedom of application to the system is small. In particular, when the site receiving the maintenance is installed on a moving body such as a ship or a vehicle, it is difficult to apply the maintenance.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to easily monitor equipment located at a remote place distant from the place where the monitor is executed, in particular, equipment installed on a mobile body. To provide a simple remote monitoring system.

[0008]

In order to solve the above-mentioned problems, field-side devices 5 and 9 for collecting monitor signals of devices installed on the site and transmitting the collected signals via a mobile phone 12a; Monitor signal transmitted via the mobile phone 1
2b, the remote monitoring device 17 that monitors the equipment installed on the site side by analyzing the received monitor signal and configures a system to separate from the place where the monitoring is performed. It is possible to easily monitor a device located in a remote place.
(Claim 1)

Further, by using the on-site device as a device installed on a moving body such as a ship or a vehicle, it becomes possible to easily monitor the device particularly installed on the moving body. . (Claim 2)

[0010] In addition, by using a common remote monitoring device and a scanning device to remotely monitor a plurality of site-side devices provided on a plurality of mobile objects, a plurality of site-side devices are provided. In addition, remote monitoring of a plurality of site-side equipment can be efficiently executed by a single remote monitoring device. (Claim 3)

[0011] Further, since the equipment installed on the site side is equipment for cargo handling installed on the ship, it becomes possible to remotely monitor equipment for cargo handling that is not used during normal voyage. In this case, a remote monitor with high accuracy can be performed even if an expert of the cargo handling equipment is not on board.
(Claim 4)

The monitor signal is a detection signal when the device is operating, an image data of the device and audio data when the device is operating, so that the state of the device is not only a detection signal of the device but also a detection signal of the device. Since the monitor is executed based on the imaging data of the portion where the failure of the device is likely to occur and the audio data of the device, a monitor with higher accuracy can be realized even remotely. (Claim 5)

In addition, by transmitting the monitor signals collected and accumulated periodically in response to a request from the remote monitor device, the monitor signals of the monitored devices can be stored and transmitted collectively. Efficient monitoring of a plurality of field devices is possible. (Claim 6)

Further, the monitor signal, which is a detection signal at the time of operation of the device, standard data for analyzing the imaging data of the device and audio data at the time of operation of the device, and abnormal data are transmitted to the plurality of mobile stations. By storing the information corresponding to a plurality of site-side devices provided on the body, it is possible to easily compare the respective devices with the remote monitor device. (Claim 7)

When the on-site equipment is a cargo handling equipment installed on a ship for transporting powdery or granular objects such as cement, personnel for monitoring special equipment are on board the ship. If not, remote monitoring will be possible. (Claim 8)

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration and operation of a remote monitoring system according to the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a configuration of a remote monitor system using a mobile phone, which is roughly divided into a site device and a remote monitor. Each of the mobile phones is connected via a modem, and a telephone line (public telephone line) is connected between the mobile phones.
Are connected as appropriate via the.

The configuration on the site side includes a vibration detector, a temperature detector, a current detector,
The output of the on-site detector 6 such as a rotation speed detector, the imaging output of the imaging camera 7 for imaging the state of the on-site equipment, and the sound collection output of the sound collector 8 for collecting the sound of the on-site equipment are transmitted to the signal processing device 5. Given.

In the signal processing circuit 5, the output of the detector 6 is
It is provided to a programmable logic controller PLC1 composed of a CPU, a RAM, an input / output unit, and a data link unit. Then, read each detector
The detection value is stored in the RAM in accordance with an instruction from the remote monitor or at predetermined time intervals. Further, the result of the comparison between the normal value and the detected value may be recorded in the RAM.

The imaging camera 7 captures an image of a field device to be monitored in response to an instruction from the monitor or at predetermined time intervals. The captured image is processed in the imaging processing device 2 and transmitted directly to the monitor side or stored in a RAM (not shown) or the like. The imaging processing device 2 cuts out only a portion necessary for predicting a failure or determining a failure state from the captured image data, reducing the data amount, and processing the data to be suitable for transmission and storage. .
It should be noted that the imaging of the on-site equipment is performed in order to image a portion where the on-site equipment is deformed due to corrosion, wear, or the like, and to predict a failure or determine a state of the failure from the result.

The sound collector 8 picks up a sound generated by a field device to be monitored in accordance with an instruction from the remote monitor or at predetermined intervals. The collected data is processed in the audio processing device 3 and transmitted to the monitor, or stored in a RAM (not shown) or the like. In addition, the collection of the sound of the on-site equipment is performed on the part where the on-site equipment generates abnormal noise due to wear, etc., and from the sound collection result,
This is performed in order to predict a failure and determine the state of the failure.

The outputs of the programmable logic controller 1, the image processing unit 2 and the audio processing unit 3 are converted into a form suitable for transmission in the data signal converter 4 and transmitted from the mobile telephone 12a via the modem 10a. You.

The configuration of the remote monitor is such that the mobile phone 1 transmits and receives signals to and from the mobile phone 12a at the site.
2b is connected to the remote monitor 17 via the modem 10b and the scanning device 21. The remote monitor device 17 includes a CPU, an audio output device, and the storage device 13. In the storage device, a program 13 used for a remote monitor is stored in advance, and the process information, the imaging information, and the voice information are those received from the site via the mobile phones 12a and 12b and the telephone line. Is done.

A display device 18, an input device 19 comprising a keyboard and a mouse, and a loudspeaker 20 are connected to the remote monitor device 17. The monitoring result processed by the CPU in the remote monitoring device is displayed on the display device, and is also output from the loudspeaker by voice. In FIG. 1,
Although not described, it is also possible to print out the monitoring result of the remote monitoring device with a printer.

As the processing of the monitor, the deviation of the output of the vibration detector, temperature detector, current detector, and rotation speed detector of each device from a preset standard value of each device is obtained. Then, it is determined whether or not the deviation is equal to or more than a predetermined value. If the difference is equal to or more than the predetermined value, an alarm can be output.

The image data picked up by the image pick-up processing unit is compared with a standard image picked up in advance for a part necessary for predicting a failure or determining a state of a failure. For the sound data collected by the sound collector, sound data generated at the time of abnormality is stored in advance for each monitoring target device, and the sound data of the device is compared with the sound data at the time of the abnormality. Predict failures and determine failure states.

In the case where the equipment to be monitored is a cargo handling equipment installed on a ship, which is a moving body, the equipment is not operated during navigation, but is operated immediately when berthed at a port. Need to be done. In addition, the failure (defective) of the cargo handling equipment of a ship leads to the extension of the period of suspension of the ship at the port, which not only reduces the utilization rate of the ship, but also upsets the berthing schedule at the port. It is important to monitor the equipment so that it can always operate normally.

The cargo handling equipment installed on the ship is often exposed to the weather and sea breeze, and often breaks down or malfunctions due to corrosion or the like. Therefore, it is necessary to periodically monitor the equipment. However, there are many cases where only necessary personnel for operation are on board the ship, and at present, there are no personnel capable of maintaining special equipment such as equipment for cargo handling.

Further, among ships, such as a cement transport ship, which transports a large amount of powdered or granular substances, the cargo handling equipment has characteristics different from those of other ships, and the maintenance thereof is also carried out. Some parts are very different from other ships.

Hereinafter, the cargo handling equipment mounted on a ship which is a moving body will be described with reference to an example of a cement ship. A cement ship has a function of loading and unloading independently by means of transport equipment that mounts cement or related products on a hull. Each transport device is automatically operated remotely by a control device mounted on the hull, and both the transport device and the control device are supplied with power from a generator on the hull.

Loading is supplied from shipping facilities such as a cement factory and an electric power company, and is loaded into a storage unit (hold) of the hull by using a hull transport facility. In addition, unloading is supplied to receiving facilities such as storage terminals and power companies in various places using hull transport equipment. In other words, both loading and unloading are performed by operating each transport device in a state of berthing on the quay of shipping facilities and receiving facilities located all over the country (world).
Therefore, during the voyage between the ports of call, the transport equipment mounted on the hull is not operated.

At the time of loading, a bellows type chute, which is installed in a shipping facility such as a cement factory or an electric power company, is connected to a loading port of the hull, and is put into a hull hold using a hull transport device. The loading port is located at the center of the hull, and there is a device for transporting cement or the like by placing cement or the like on a canvas called an air slide, supplying air from a lower portion of the canvas, and sliding the cement or the like.

Next, the cement or the like moved on the air slide is transferred to a horizontal screw conveyor and is distributed to the front of the hull or the rear of the hull. The horizontal screw conveyor has a blade-like rotating body in a transporter case, and is a facility for transporting cement or the like by rotating, and is installed horizontally. The cement or the like moved by the horizontal screw conveyor is put into the selected hold by opening the damper at the selected hold entrance. The damper is of a continuous type, and a control device performs arithmetic processing for adjusting the input amount or correcting the inclination of the hull, and sets an optimal opening degree.

The unloading operation is carried out by connecting a flexible hose or a bellows chute mounted on the hull to receiving facilities of storage terminals, electric power companies and the like in various places to carry out unloading operation on land. There are two ways to unload, one is
This is a pneumatic transport system using compressed air using a compressor driven by an engine drive shaft. The other is a mechanical transport system using mechanical transport means such as a screw conveyor.

At the time of unloading, in both the pneumatic transportation method and the mechanical transportation method, first, cement or the like in the hold of the hull is pumped up to the upper portion by a vertical screw conveyor. At this time, a continuous gate is provided at the outlet at the bottom of the hold, and the opening of the continuous gate is calculated by the control device based on the current value of the vertical screw conveyor and the inclination of the hull, and the optimal opening is calculated. Is set to Next, the cement and the like conveyed by the vertical screw conveyor are connected to the horizontal screw conveyor and stored in a temporary tank in the center of the hull.

In the case of pneumatic transportation, the cement and the like temporarily stored in the tank are transported to the pneumatic transportation pressure tank using an air slide. When it is detected that the cement or the like in the pneumatic transport tank is full, the pressure tank is pressurized by air pressure, and the cement or the like in the tank is transported by air pressure. In the case of this transportation method, in order to increase the ordinary transportation capacity, two pressure tanks are provided, and when one is being transported, the other is receiving a batch process such as receiving cement or the like.

In the case of mechanical transportation, cement and the like stored in the temporary tank are transferred from a continuous damper at the bottom outlet of the temporary tank to a vertical screw conveyor, further to a movable screw conveyor, and to a land receiving facility. Unloading is performed via the bellows type chute connected. The movable screw conveyor is a screw conveyor that can be turned and raised (moved up and down) by a hydraulic pressure source, and has a bellows-type chute at the end.

As described above, the cement ship has its own unloading equipment on the hull and is a special equipment different from the unloading equipment of a normal ship. There is a situation that it is difficult to carry out maintenance of equipment for use.

[0038]

According to the first aspect of the present invention, on-site devices 5 and 9 for collecting monitor signals of devices installed on the site and transmitting the collected signals via the mobile phone 12a, and via the mobile phone By receiving the transmitted monitor signal via the mobile phone 12b and analyzing the received monitor signal, the remote monitor device 17 for executing the monitoring of the equipment installed on the site side constitutes a monitor. It is possible to easily execute monitoring of equipment located in a remote place remote from the place where the execution is performed.

According to the second aspect of the present invention, the on-site device is a device installed on a moving body such as a ship or a vehicle, so that the equipment monitor particularly installed on the moving body can be monitored. It can be easily executed.

According to the third aspect of the present invention, a plurality of on-site devices are provided on a plurality of moving bodies and are provided to a plurality of on-site devices by using a common remote monitor and a scanning device. , Remote monitors of a plurality of site-side devices can be efficiently monitored by a single remote monitor device.

According to the fourth aspect of the present invention, the equipment installed on the site side is the equipment for cargo handling installed on the ship, so that the equipment for cargo handling not used during normal voyage is used. Since remote monitoring becomes possible, highly accurate remote monitoring becomes possible even if a specialist of the cargo handling equipment is not on board the ship.

According to the fifth aspect of the present invention, the monitor signal is a detection signal at the time of operation of the device, image data of the device, and audio data at the time of operation of the device, thereby providing a state of the device. Not only the detection signal of the device,
Imaging data of the place where the failure of the device is likely to occur, and
Since the monitor is executed by the audio data of the device, a monitor with higher accuracy can be realized even remotely.

According to the present invention, the monitor signal of the monitoring target device is stored by transmitting the monitor signal collected and accumulated periodically in response to a request from the remote monitor device. Since these are collectively transmitted, efficient monitoring of a plurality of site-side devices can be performed.

Further, in the invention according to claim 7, the monitor signal includes a detection signal at the time of operation of the device, image data of the device, and standard data for analyzing audio data at the time of operation of the device. The abnormal data is provided on the plurality of moving bodies and stored in correspondence with the plurality of site-side devices, so that comparison can be easily performed by the remote monitor device.

Further, in the invention according to claim 8, when the on-site apparatus is a cargo handling equipment installed on a ship for transporting powdery or granular objects such as cement, a monitor for a special equipment is used. Remote monitoring is possible even if no personnel are on board the ship.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a remote monitor system of the present invention.

FIG. 2 is a diagram showing a configuration of a conventional remote monitoring device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Programmable logical controller (PLC) 2 Imaging processing device 3 Audio processing device 4 Data signal converter 5 Signal processing device 6 Detector 7 Imaging camera 8 Sound collector 9 On-site installation equipment 10a, 10b Modem 12a, 12b Mobile phone 13 Program 14 Process information 15 Imaging information 16 Audio information 17 Remote monitoring device 18, 20 Output device (display device, loudspeaker) 19 Input device (keyboard, mouse)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Odaka 1-2-2, Kiyosumi, Koto-ku, Tokyo Inside Pacific Engineering Co., Ltd. (72) Eiji Matsuda 3-2-1, Nishikanda, Chiyoda-ku, Tokyo Taiheiyo Cement Co., Ltd. F-term (reference) 5H223 AA09 AA10 BB01 CC01 DD07 DD09 EE06 EE11 EE30 FF03 FF04 5K101 KK11 KK12 LL12 NN15 NN18

Claims (8)

[Claims] 1. A site-side device that collects a monitor signal of a device installed on the site side and transmits it via a mobile phone, and receives the monitor signal transmitted via the mobile phone via a mobile phone. And a remote monitoring device that monitors a device installed on the site side by analyzing a received monitor signal, and a remote monitoring system using a mobile phone. 2. The remote monitoring system using a mobile phone according to claim 1, wherein the site device is installed on a moving body such as a ship or a vehicle. 3. A remote monitor device provided on a plurality of moving objects and common to a plurality of site-side devices, wherein a remote monitor for the plurality of site-side devices is executed by using a scanning device. A remote monitoring system using the mobile phone according to claim 1. 4. The remote monitoring system using a mobile phone according to claim 2, wherein the equipment installed on the site side is equipment for cargo handling installed on the ship. 5. The apparatus according to claim 1, wherein the monitor signal is a detection signal at the time of operation of the device, image data of the device, and audio data at the time of operation of the device. A remote monitoring system using the described mobile phone. 6. A request from the remote monitoring device,
The remote monitor system using a mobile phone according to any one of claims 1 to 5, wherein the monitor signal is periodically collected and transmitted. 7. The system according to claim 7, wherein the monitor signal is a detection signal at the time of operation of the device, standard data for analyzing image data of the device and audio data at the time of operation of the device, and abnormal data, the plurality of on-site data. The remote monitoring system using a mobile phone according to any one of claims 1 to 6, wherein the remote monitoring system is stored corresponding to a plurality of devices of the side device. 8. The cargo handling equipment according to claim 1, wherein the equipment installed on the site is a cargo handling equipment installed on a ship for transporting powdery or granular objects such as cement. A remote monitoring system using the mobile phone according to claim 1.