JP2003018678A - Monitor terminal and monitor system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitor terminal and a monitor system which flexibly deal with the change of monitor contents and reduce the cost resulting from the change of the monitor contents. SOLUTION: A plurality of kinds of function expansion modules 26 capable of acquiring different monitor data other than the specified monitor data of the terminal 13 itself are removably connected to the monitor terminal 13 for acquiring specified monitor data of a pre-designated high voltage receiving equipment 12, etc., under monitoring or those data in an environment under monitoring sot that the modules are selected to communication with each other according to the monitor contents. This enables the terminal to flexibly deal with the change of the monitor contents, i.e., has no need of designing an exclusive terminal 13 each time the monitor contents change, thereby reducing the cost for changing the monitor contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring terminal device for monitoring the operating status of monitored equipment such as high voltage power receiving equipment.

[0002]

2. Description of the Related Art Conventionally, there has been provided a monitoring terminal device for monitoring the status of monitored equipment such as high-voltage power receiving equipment and transmitting this monitoring information to a monitoring center via a public line. A monitoring system is known in which a monitoring center notifies the manager of the status of equipment to be monitored based on the above.

For example, a high-voltage power receiving facility is provided with a monitoring terminal device for monitoring the insulation of a secondary load by measuring a class B ground wire current (leakage current) of a transformer. Usually, the monitoring terminal device stores measurement data (leakage current measurement data and temperature measurement data) for a predetermined fixed period (for example, 1 month to 3 months). The monitoring center accesses each monitoring terminal device in a polling format and collects the measurement data stored in the monitoring terminal device via the public line.

On the other hand, when the magnitude of the leakage current reaches a preset value due to a ground fault or the like, the monitoring terminal device transmits the abnormality occurrence information to the monitoring center via the public line. Upon receiving the abnormality occurrence information, the monitoring center reports the abnormality of the equipment to the management office. From the management office, the engineer in charge goes to the site to handle the accident. In addition to the insulation monitoring function, the monitoring terminal device has a temperature monitoring function that detects an abnormal temperature rise in the transformer case and sends temperature abnormality information to the monitoring center, and a power failure accident that detects power failure. Often equipped with a power failure monitoring function that sends the information to the monitoring center.

[0005]

However, in the above-mentioned conventional monitoring system, when the monitoring contents are changed, it is necessary to replace the entire monitoring terminal device. For example,
When monitoring the ambient temperature inside the enclosure of high-voltage power receiving equipment in addition to the leakage current, replace the monitoring terminal device for measuring leakage current with a monitoring terminal device that can monitor both the leakage current and the ambient temperature. . The same applies to the case where, for example, the monitoring content is changed from the leakage current to the ambient temperature in the housing, or both the leakage current and the ambient temperature are monitored.

Therefore, it is necessary to design a dedicated monitoring terminal device for each of the above-mentioned changes in the monitoring contents. That is, it was not possible to flexibly respond to changes in the monitoring contents. Therefore, there has been a problem that the cost associated with the change of the monitoring contents becomes high.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to flexibly respond to changes in monitoring contents and reduce costs associated with changing monitoring contents. It is to provide a monitoring terminal device and a monitoring system.

[0008]

According to a first aspect of the present invention, there is provided a monitoring terminal device for collecting specific monitoring data in a monitoring target facility or a monitoring target environment designated in advance,
A plurality of types of function expansion modules capable of collecting different monitoring data other than the specific monitoring data are selected according to the monitoring content and are connected to the monitoring terminal device so as to be capable of mutual data communication and detachable. The point is what you did.

According to a second aspect of the invention, in the first aspect of the invention, the monitoring terminal device includes a debug port, and the debug port is a port for communication with the function expansion module. The point is that it is also used.

According to a third aspect of the present invention, in the invention according to the first or second aspect, the function expansion module is a demand amount, temperature, humidity, electric energy, fire occurrence, insulation state, equipment to be monitored. The gist of the present invention is to have a function for monitoring at least one of the foreign matter intruding into the housing and the opening / closing state of the housing opening / closing door in the monitored equipment.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the function expansion module is a storage unit for storing the collected monitoring data, and an external device. And a control means for controlling the communication means so as to transmit the monitoring data stored in the storage means in response to a data transmission request from the monitoring terminal device, The point is that the monitoring operation can be performed independently.

According to a fifth aspect of the present invention, the monitoring terminal device according to any one of the first to fourth aspects, which monitors the state of the facility to be monitored or the environment to be monitored, is connected from a host computer to a network. A monitoring system for remotely monitoring via a monitoring system, wherein the monitoring terminal device automatically sends various kinds of monitoring data to a host computer when a predetermined data transmission date / time is reached. To do. (Operation) According to the invention described in claim 1, a function expansion capable of collecting desired monitoring data from a plurality of types of function expansion modules capable of collecting different monitoring data other than the specific monitoring data. Modules are selected and connected to each other in a data communicable and detachable manner. Therefore, it is possible to flexibly deal with the change of the monitoring content.

According to the invention of claim 2, claim 1
In addition to the effect of the invention described in (1), the debug port of the monitoring terminal device can be used as a communication port with the function expansion module. Therefore, for the monitoring terminal device,
There is no need to provide a dedicated communication port with the function expansion module.

According to the invention of claim 3, claim 1
Alternatively, in addition to the function of the invention described in claim 2, demand amount, temperature, humidity, electric energy, fire occurrence, insulation state, intrusion of foreign matter into the enclosure of the equipment to be monitored, and enclosure opening / closing door of the equipment to be monitored. It is possible to add at least one monitored content among the open / closed states.

According to the invention of claim 4, claim 1
~ In addition to the function of the invention described in any one of claims 3 to 4, the function expansion module performs an independent monitoring operation,
The monitoring data is stored in the storage means. Then, the function expansion module transmits the monitoring data stored in the storage means in response to the data transmission request from the monitoring terminal device. Therefore, it is not necessary to control the monitoring operation on the function expansion module side on the monitoring terminal device side.

According to the invention described in claim 5, the monitoring terminal device according to any one of claims 1 to 4 for monitoring the state of the facility to be monitored or the environment to be monitored from a host computer. Remote monitoring via network. Then, when the data transmission date and time designated in advance comes, the monitoring terminal device automatically transmits various monitoring data to the host computer. Therefore, a monitoring system that can flexibly respond to changes in the monitoring contents is constructed.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) An embodiment in which the present invention is embodied in a monitoring terminal device and a monitoring system will be described below with reference to FIGS. The monitoring system remotely monitors each high-voltage power receiving equipment by means of a monitoring terminal device installed in each high-voltage power receiving equipment used in a large number of companies existing over a wide area.

(System Configuration) As shown in FIG. 1, a monitoring system 11 includes a monitoring terminal device 13 installed in a cubicle type high-voltage power receiving facility 12 and a host computer installed in a monitoring center 14 (hereinafter, “Host”) 15 and are connected to each other via a network 16. The high voltage power receiving equipment 12 is provided, for example, on the roof of a building. In FIG. 1, the high voltage power receiving equipment 1
Only one 2 is shown.

A transformer 21 is arranged in the high-voltage power receiving equipment 12, and the secondary side of the transformer 21 is grounded to the class B ground. The current transformer 22 is connected to the ground wire,
The secondary side of the current transformer 22 is connected to the input unit of the monitoring terminal device 13. A temperature sensor 23 is attached to the surface of the case of the transformer 21, and the temperature sensor 23 is connected to the input unit of the monitoring terminal device 13.

At the output of the monitoring terminal device 13, RS-2 is provided.
Function expansion module 26 via 32C cable 25
Is detachably connected. Also, the monitoring terminal device 13
Is connected to the network 16 via the modem 27.

On the other hand, the host computer 15 of the monitoring center 14 is connected to the network 16 via the modem 28. The modems 27 and 28 are respectively used for connection to the network 16, perform data conversion associated with communication, etc., and exchange programs and various measurement data between the monitoring terminal device 13 and the host computer 15.

(Monitoring Terminal Device) Next, the structure for monitoring the insulation state in the monitoring terminal device will be described. As shown in FIG. 2, the monitoring terminal device 13 includes an arithmetic processing unit 31. The arithmetic processing unit 31 includes amplifiers 32 and 33 and an A / D.
The secondary side of the current transformer 22 and the temperature sensor 23 are connected via the converters 34 and 35, respectively. The secondary side output of the current transformer 22 (the class B ground wire current of the transformer 21) and the output from the temperature sensor 23 are amplified by the amplifiers 32 and 33, respectively, and then analogized by the A / D converters 34 and 35. The signal is converted into a digital signal and input to the arithmetic processing unit 31.

A display unit 36, a memory 37 and a communication port 38 are connected to the arithmetic processing unit 31, and the communication port 38 is connected to the modem 27 (see FIG. 1) via an output terminal 39. There is. The display 36 includes a liquid crystal display (LCD), a fluorescent display tube (VFD), or the like, and has a single digit or a plurality of digits, that is, a B-type ground line current of the transformer 21 (hereinafter, referred to as “leakage current”). Displays the value and temperature measurement value.

The memory 37 stores measurement data (leakage current and transformer case temperature measurement values) detected by the current transformer 22 and the temperature sensor 23. In addition, the memory 37
Various control programs executed by the arithmetic processing unit 31 and various initial setting data for determining the operation of the monitoring terminal device 13 are stored in the. The arithmetic processing unit 31 monitors the high voltage power receiving equipment 12 based on the initial setting data. Further, the monitoring terminal device 13 stops the high voltage power (hereinafter,
It is called "blackout". ) Is monitored on the secondary side of the transformer 21.

In addition to the function expansion module 26, the RS-232C output port 24 of the arithmetic processing unit 31 is connected to the debugger 4 via the RS-232C cable 25.
0 is removable. That is, the RS-232C output port 24 functions as a debug port of the arithmetic processing unit 31 and a communication port with the function expansion module 26.

(Host Computer) Next, the host computer 15 will be described in detail. As shown in FIG. 3, the host computer 15 includes a central processing unit (hereinafter,
"CPU"). ) 41. CPU41
A memory 42, an input device 43, an output device 44, a storage device 45, a drive device 46, and a communication port 47 are connected to the communication port 47, and the communication port 47 has an output terminal 48.
It is connected to the modem 28 (see FIG. 1) via the.

The CPU 41 executes various programs by using the memory 42, and executes processing necessary for monitoring the high voltage power receiving equipment 12. The memory 42 stores various programs and data necessary for monitoring the high voltage power receiving facility 12.
The input device 43 includes a keyboard, a mouse and the like, and is used for inputting requests and instructions from the user. Output device 44
Is a display device (display such as a liquid crystal display and a fluorescent display tube),
It includes a printer, a speaker, etc., and outputs the monitoring status and the like.

The storage device 45 includes a magnetic disk, an optical disk, and a magneto-optical disk device, and various programs required for monitoring the high-voltage power receiving equipment 12 and initial setting of the monitoring terminal device 13, and initial setting data of the monitoring terminal device 13. Various data such as is stored. This storage device 45 is also used as a database. The CPU 41 transfers various programs and data to the memory 42 and executes them in response to requests and instructions from the input device 43.

The drive device 46 is a floppy (registered trademark) disk, an optical disk (CD-ROM, DVD-R).
OM ...), magneto-optical disks (MO, MD, ...), and any computer-readable storage medium is driven to access the stored contents. It is also possible to store the various programs and data in this storage medium and load them into the memory 42 for use.

(Function Expansion Module) Next, the function expansion module 26 will be described in detail. As shown in FIG. 2, the function expansion module 26 includes a demand monitoring module, a humidity monitoring module, a power monitoring module, a temperature monitoring module, and a high-voltage power receiving facility 12.
There are prepared a plurality of types having various functions such as for monitoring the open / closed state of the housing opening / closing door, for detecting fire, for detecting foreign matter entering the housing, and for monitoring the insulation state.

Various function expansion modules 26 are selected according to the contents of monitoring and are connected to the monitoring terminal device 13. The function expansion module 26 continuously monitors the monitored equipment or the monitored environment independently for 24 hours and accumulates the monitored data. And the function expansion module 2
Reference numeral 6 transmits monitoring data accumulated to the monitoring terminal device 13 only when requested by the monitoring terminal device 13.

As shown in FIG. 4, the function expansion module 2
Reference numeral 6 includes an arithmetic processing unit 51 including a CPU and the like. An interface unit 54 is connected to the arithmetic processing unit 51 via an amplifier 52 and an A / D converter 53. Output signals (monitoring results) from various sensors described later are input to the interface unit 54. This output signal is amplified by the amplifier 52 and then A / D converter 53.
The analog signal is converted into a digital signal by the input and is input to the arithmetic processing unit 51.

Further, a display 55, a memory 56 and a communication unit 57 are connected to the arithmetic processing unit 51, and the communication unit 5
7 is connected to the arithmetic processing unit 31 of the monitoring terminal device 13 via an RS-232C cable 25. Indicator 5
5 is a liquid crystal display (LCD) or a fluorescent display tube (VF)
D) and the like are provided to display a single digit or a plurality of digits, that is, the monitoring results of various sensors.

The memory 56 stores various control programs executed by the arithmetic processing section 51 and also stores monitoring data input from the interface section 54. The communication unit 57 controls various data communication with the arithmetic processing unit 31 via the RS-232C cable 25.

The interface unit 54 includes a demand monitor, a humidity monitor, an electric power monitor, a temperature monitor, an open / closed state monitor of the housing opening / closing door, a fire detection, and a foreign matter intrusion detection into the housing. Various sensors are connected according to the contents of measurement and monitoring such as monitoring and insulation state monitoring. The function expansion modules 26 for demand monitoring, humidity monitoring, power amount monitoring, temperature monitoring, open / closed state monitoring, fire detection, and foreign matter intrusion detection into the housing will be described below. Since the function expansion module 26 for monitoring the insulation state has substantially the same configuration as the monitoring terminal device 13, detailed description thereof will be omitted.

(For Demand) The function expansion module 26 for demand monitoring monitors the amount of electric power used at the installation destination of the high voltage power receiving equipment 12. In the function expansion module 26 for demand, the interface unit 54 is connected to a power meter 61 that is connected to various electric power equipment (lighting equipment, air conditioning equipment, etc.). Based on the electric energy detected by the electric energy meter 61, the arithmetic processing unit 51 determines that the demand (3
Calculate the amount of 0 minute average power).

(For Humidity) The humidity monitoring function expansion module 26 monitors, for example, the humidity in the housing of the high-voltage power receiving facility 12. In the function expansion module 26 for humidity monitoring,
A humidity sensor 62 is connected to the interface section 54. The arithmetic processing unit 51 stores the humidity data in the housing detected by the humidity sensor 62 in the memory 56.
Humidity inside the enclosure is sampled in real time for 24 hours.

(Power consumption) The function expansion module 26 for power consumption monitoring monitors the power consumption at the installation destination of the high voltage power receiving equipment 12. In the function expansion module 26 for power consumption monitoring, a voltage sensor 63 and a current sensor 64 are connected to the interface section 54. Both sensors 63, 6
4 are various electric power equipment (lighting equipment, air conditioning equipment, etc.)
It is connected to the. Based on the voltage data and current data detected by both sensors 63, 64, the arithmetic processing unit 5
1 calculates the amount of electric power and stores it in the memory 56.

The function expansion module 26 for temperature monitoring (for temperature) monitors, for example, at least one of the ambient temperature and the transformer temperature in the housing of the high-voltage power receiving equipment 12. In the function expansion module 26 for temperature monitoring, a temperature sensor 65 is connected to the interface section 54. The arithmetic processing unit 51 stores the temperature data in the casing detected by the temperature sensor 65 in the memory 56. The temperature inside the enclosure is sampled in real time for 24 hours.

(For door open / closed state) The function expansion module 26 for monitoring the door open / closed state monitors the open / closed state of the open / close door provided in the housing of the high voltage power receiving facility 12. In the function expansion module 26 for opening and closing the door, the interface unit 54
An open / close sensor 66 provided on the open / close door is connected to the.

(Fire detection) The fire detection function expansion module 26 detects smoke generated in the housing of the high-voltage power receiving equipment 12 and detects a fire at an initial stage. In the function expansion module for fire detection, the interface unit 54
A smoke sensor 67 provided in the housing is connected to the.

(For foreign matter intrusion detection) The foreign matter intrusion detection function expansion module 26 detects intrusion of foreign matter (for example, rainwater and small animals such as snakes) into the housing to prevent equipment ground fault and short circuit accident. . In the function expansion module for detecting foreign matter intrusion, a foreign matter intrusion sensor 68 such as a water detection sensor and an infrared sensor provided in the housing is connected to the interface section 54.

(Operation of Embodiment) Next, the operation of the monitoring terminal device and the monitoring system configured as described above will be described in the order of new installation, normal monitoring, and abnormality detection.

(At the time of new installation) First, the operation of the monitoring terminal device and the monitoring system at the time of new installation will be described. In this embodiment, a function expansion module for demand amount monitoring is installed. Further, as shown by a chain double-dashed line in FIG. 1, a communication test button 69 is connected to the monitoring terminal device 13. A telephone number notification mode is set for the telephone line to which the monitoring terminal device 13 is connected.

(1-1) When the installation work of the monitoring terminal device 13 and the function expansion module 26 is completed, the engineer in charge presses the communication test button 69 of the monitoring terminal device 13. Then, the arithmetic processing unit 31 of the monitoring terminal device 13 activates the modem 27 and sets the monitoring center 14 in the telephone number notification mode.
Dial to.

(1-2) Since the host computer 15 of the monitoring center 14 is set to support the telephone number notification mode as a normal processing mode, the monitoring terminal device 13
The telephone number from the installation destination of the above is compared with the telephone number list of the planned installation destination of the day registered in the storage device 45 in advance. When the telephone number from the installation destination matches any telephone number in the telephone number list of the planned installation destination, the host computer 15 recognizes that the dialing is from the registered telephone number and automatically initializes it. The processing shifts to the setting operation. That is, the host computer 15 transmits the initial setting preparation command to the monitoring terminal device 13.

(1-3) When the initial setting preparation command is received from the host computer 15, the monitoring terminal device 13
Returns a data request command. (1-4) Upon receiving the data request command, the host computer 15 sends the initial setting data to the monitoring terminal device 13.
Send to. The initial setting data includes, for example, the following data.

Monitoring center 14 (host computer 1
5) Telephone number data / identification number data of the monitoring terminal device 13 / setting data of various monitoring elements (sampling time etc.) of the monitoring terminal device 13 / periodical measurement data transmission cycle data (transmission in this embodiment) The cycle is once a month.)-Next data transmission date / time data (in the present embodiment, the transmission time frames of the plurality of monitoring terminal devices 13 existing in the monitoring area in charge of the monitoring center 14 are in units of several minutes, respectively) The table is managed in such a way that only one monitoring terminal device 13 is registered in one time frame.)-Transmission time shift settings of a plurality of monitoring terminal devices 13 (specifically, a predetermined time from the detection of a power failure accident) A different delay time is specified for each monitoring terminal device 13 so that the power failure warning data is transmitted after the delay time of. (Effective waiting time by simultaneous transmission of a plurality of monitoring terminal devices 13) (1-5) The monitoring terminal device 13 performs error verification of the received initial setting data, and if correct, sends a reception completion command to the host computer 15, Disconnect. The monitoring terminal device 13 stores the initialization data in the memory 37, and thereafter operates based on this initialization data.

(1-6) When the reception completion command is received, the host computer 15 disconnects the line. As described above, by using the telephone number notification mode, the host computer 15 automatically performs the initial setting work of the monitoring terminal device 13 by only pressing the communication test button 69. Therefore, the initial setting work of the monitoring terminal device 13 becomes easy.

(Normal Monitoring: Data Collection) Next, the operation of the monitoring terminal device and the monitoring system during normal monitoring will be described. (2-1) The monitoring terminal device 13 is based on the initial setting,
The high-voltage power receiving equipment 12 is continuously monitored for 24 hours. The arithmetic processing section 31 stores in the memory 37 the measurement data (leakage current and transformer case temperature measurement values) measured at preset sampling times. On the other hand, the function expansion module 26
Independently monitors a monitoring target (amount of demand at the installation destination of the high voltage power receiving equipment 12) different from the monitoring terminal device 13,
This monitor data is stored in the memory 56.

When the transmission date and time of the measurement data designated at the time of initial setting comes, the monitoring terminal device 13 firstly monitors the monitoring data accumulated in the function expansion module 26 (high voltage power receiving equipment 1
2) Demand amount at the installation site) is collected. That is, as shown in FIG. 5, the monitoring terminal device 13 transmits a data request command to the function expansion module 26. Then, the arithmetic processing unit 51 of the function expansion module 26 makes the memory 56
The monitoring data for a certain period (one month in this embodiment) accumulated in (1) is transmitted to the monitoring terminal device 13 (response). The monitoring terminal device 13 temporarily stores the monitoring data of the function expansion module 26 in the memory. It should be noted that if the monitoring data collection of the function expansion module 26 is not instructed at the time of initial setting of the monitoring terminal device 13, the above processing is not performed.

Thereafter, the monitoring terminal device 13 automatically activates the modem 27 to access the host computer 15,
That is, the telephone number of the host computer 15 is dialed. When the line is connected to the host computer 15,
The monitoring terminal device 13 transmits its own identification number and a data transmission request command to the host computer 15.

In the present embodiment, the data transmission time frames of the plurality of monitoring terminal devices 13 existing in the monitoring area in charge of the monitoring center 14 are table-managed in units of several minutes, and one monitoring terminal is provided in one time frame. Only the device 13 is registered. Therefore, the transmission times of the monitoring terminal devices 13 do not overlap with each other, and congestion of the line is avoided.

(2-2) The host computer 15 collates the transmitted identification number with the registration monitoring terminal device list table stored in advance in the storage device 45. And
Monitoring terminal device 1 that has transmitted a data transmission request command
When it is authenticated that 3 is the registered monitoring terminal device 13, the host computer 15 returns a data request command.

(2-3) When the data request command is received, the monitoring terminal device 13 monitors the measurement data by itself for a certain period (one month in this embodiment) accumulated in the memory 37 and the function expansion module 26. The data is transmitted to each host computer 15.

(Structure of monitoring data) As shown in FIG.
The measurement data (monitoring data) transmitted to the host computer 15 includes a header, an address of the monitoring terminal device or the function expansion module, a message content identification ID, and a message content. The host computer 15 can determine the type of message content (type of monitoring data) based on the message content identification ID.

(2-4) Upon receiving the data, the host computer 15 once stores the data in the memory 42. Then, the host computer 15 verifies the received data for an error, and if there is no error, the host computer 15 uses this communication state to transmit a designation command for designating the next data transmission date and time to the monitoring terminal device 13. After that, the host computer 15 stores the monitoring data of the monitoring terminal device 13 and the monitoring data of the function expansion module 26 in the storage device 4.
Store in 5.

(2-5) When the specified command is received, the monitoring terminal device 13 performs an error check, and if correct, sends a transmission completion command to the host computer 15 and then disconnects the line.

(2-6) Upon receiving the transmission completion command, the host computer 15 disconnects the line. With the above, a series of processing at the time of collecting measurement data is completed.

As described above, the measurement data is collected from the host computer 15 without accessing the monitoring terminal device 13. Therefore, unlike the case of accessing the monitoring terminal device 13 from the host computer 15 and collecting the measurement data, the telephone and the facsimile which are connected to the line in parallel with the monitoring terminal device 13 respond earlier than the monitoring terminal device 13. It is prevented that the access is disabled (during a call).

(Abnormality Detection) Next, the operation of the monitoring terminal device and the monitoring system at the time of abnormality detection will be described. (3-1) For example, when a leakage current and a transformer case temperature exceed a preset reference value (threshold value) during measurement due to a ground fault, and an abnormal situation occurs in which a power failure continues for a certain period of time. In this case, the monitoring terminal device 13 immediately dials the telephone number of the monitoring center 14 regardless of the preset data transmission date and time. When the line is connected to the host computer 15, the monitoring terminal device 13 transmits its own identification number to the host computer 15.

(3-2) As in the case of (2-2), the host computer 15 determines the identification number, authenticates that it is the registered number, and sends a data request command to the monitoring terminal device 13. .

(3-3) When the data request command is received, the monitoring terminal device 13 sends alarm data (alarm signal) to the host computer 15. (3-4) When the alarm data is received, the host computer 15 temporarily stores the alarm data in the memory 42,
Perform an error test on the alarm data. Then, if there is no error, the reception completion command is transmitted to the monitoring terminal device 13 and the line is disconnected.

(3-5) When the reception completion command is received, the monitoring terminal device 13 disconnects the line. (3-6) On the other hand, in the above (3-4), the host computer 15 analyzes the alarm data and confirms the urgency level included in the alarm data. The urgency level is preliminarily divided into a plurality of stages (for example, four stages of level 1 to level 4) according to the content of the abnormality. When the urgency level included in the alarm data is level 1 to level 3, the monitoring center 14 Notifies the management office of the high-voltage power receiving equipment 12 of the abnormality of the equipment by telephone or the like. Monitoring center 1
Upon receiving the report from 4, the management office dispatches the engineer in charge to the site to handle the accident.

(Notification to Engineer in Charge) (4-1) In the above (3-6), when the urgency level is the highest level 4, the host computer 15 has an abnormality in the emergency contact registered in advance. To report.

That is, the host computer 15 is, for example, a mobile phone, a PHS (simple mobile phone), a pager (registered trademark), a notebook personal computer, etc., which is carried by a plurality of engineers in charge who have set the notification order in advance. The occurrence of abnormality is automatically and sequentially notified to the mobile terminal device 49 by voice, characters, image data, or the like. In the present embodiment, the mobile terminal device 49 is a mobile phone having an electronic mail function,
The host computer 15 automatically sends an e-mail informing that an abnormality has occurred to the mobile phone owned by the engineer in charge.

Specifically, the host computer 15 is
First, notify the engineer in charge of the 1st place in the reporting order. And
If there is no reply within the preset waiting time (fixed), the host computer 15 notifies the engineer in charge of the second place in the notification order. After that, the third report is given until a reply is received.
Repeat the report with the engineer in charge, the engineer in charge of the fourth rank, and so on. Therefore, it is possible to more reliably notify the engineer in charge that an abnormality has occurred.

(4-2) Notification of abnormal occurrence (e-mail)
After receiving and confirming the contents, the technician in charge transmits a reception confirmation signal to the host computer 15 in the caller number notification mode using the redial button or the like of the mobile terminal device 49. After that, the engineer in charge goes to the site and carries out accident processing such as pursuing the cause.

(4-3) Upon receiving the reception confirmation signal, the host computer 15 automatically recognizes the completion of contact with the engineer in charge. Further, based on the reception confirmation signal, the host computer 15 discriminates the engineer in charge of receiving the abnormality notification, converts it into maintenance charge data, and updates the abnormality occurrence history.

(When a power failure is detected) On the other hand, in (3-1), if the power failure continuously occurs for a preset fixed time, regardless of the data transmission date and time designated in advance,
Each monitoring terminal device 13 logs on to the host computer 15 after the delay time set individually after the power failure is detected. Then, only the monitoring terminal device 13 authenticated by the host computer 15 transmits the alarm data.

That is, at the time of power failure, the alarm data from each monitoring terminal device 13 is transmitted with a predetermined time difference. Therefore, during a simultaneous blackout of the power distribution system due to a lightning strike or the like, a large number of monitoring terminal devices 13 existing in the blackout area do not simultaneously issue an alarm. Therefore, congestion of the line to the host computer 15 can be avoided.

With the above, a series of processes when an abnormality occurs are all completed. (On-site processing) The engineer in charge acquires the regular monitoring data and the current data of the monitoring terminal device 13 in charge by accessing the host computer 15 using the mobile terminal device (cellular phone) 49. Is possible.

(Effect of Embodiment) Therefore, according to this embodiment, the following effects can be obtained. (1) For the monitoring terminal device 13, a plurality of types of function expansion modules 26 capable of collecting different monitoring data other than the specific monitoring data of the monitoring terminal device 13 itself are selected according to the monitoring content and mutually mutually selected. The data communication is made possible and the connection is made detachably. Therefore, it is possible to flexibly deal with the change of the monitoring content. That is, it is not necessary to design a dedicated monitoring terminal device 13 for each change of the monitoring contents. Therefore, it is possible to reduce the cost involved in changing the monitoring content.

(2) The monitoring terminal device 13 has a debug port, and the debug port is also used as a communication port with the function expansion module. Therefore, it is not necessary to provide the monitoring terminal device 13 with a dedicated communication port with the function expansion module.

(3) The function expansion module 26 has a function of monitoring at least one of the demand amount, the temperature, the humidity, the power amount, and the open / closed state of the casing opening / closing door in the facility to be monitored. Therefore, at least one of these monitoring contents can be added.

(4) The function expansion module 26 has a memory 56, a communication unit 57, and the communication unit for transmitting the monitoring data stored in the memory 56 in response to a data transmission request from the monitoring terminal device 13. And an arithmetic processing unit 51 for controlling 57. The function expansion module 26 can be independently monitored. Therefore, the monitoring terminal device 1
It is not necessary to perform monitoring operation control on the function expansion module 26 side on the 3 side.

(5) The monitoring system 11 is configured by using the monitoring terminal device 13 provided with the function expansion module 26. Therefore, it is possible to construct a monitoring system capable of flexibly responding to changes in the monitoring contents.

(Other Example) The above embodiment may be modified as follows. In the above embodiment, the initial setting of the monitoring terminal device 13 is automatically performed by using the telephone line in which the telephone number notification mode is set. However, a normal telephone in the telephone number non-notification mode is used. You may make it perform the initial setting of the monitoring terminal device 13 using a line. In this case, the operator of the monitoring center 14 manually operates the host computer 15 after receiving a telephone call from the engineer in charge of the installation work, thereby initializing the monitoring terminal device 13 in the host computer 15. Let

The function expansion module is installed in the monitoring terminal device 13
It may be configured to be directly connectable to.

[0080]

As described above, according to the present invention, it is possible to flexibly deal with the change of the monitoring contents and reduce the cost accompanying the change of the monitoring contents.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a monitoring system according to this embodiment.

FIG. 2 is a schematic configuration diagram of a monitoring terminal device according to the present embodiment.

FIG. 3 is a schematic configuration diagram of a host computer according to the present embodiment.

FIG. 4 is a schematic configuration diagram of a function expansion module according to the present embodiment.

FIG. 5 is a diagram showing data exchange between the monitoring terminal device and the function expansion module according to the present embodiment.

FIG. 6 is a structural diagram of monitoring data according to the present embodiment.

[Explanation of symbols]

11 ... Monitoring system, 13 ... Monitoring terminal device, 15 ... Host computer, 16 ... Network, 26 ... Function expansion module, debug port, communication port, 56 ...
Memory (storage means), 57 ... Communication unit (communication means), 51
... arithmetic processing unit (control means).

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) G08B 25/10 G08B 25/10 D H04M 11/00 301 H04M 11/00 301 // G06F 13/00 351 G06F 13/00 351N F term (reference) 5B089 GA23 JA35 JA36 KA11 KB02 KB11 KC23 5C087 AA02 AA03 AA10 AA25 BB12 BB18 BB74 DD04 DD08 DD49 EE12 EE16 FF01 FF02 DD02 BB07 BB07 BB07 BB07 BB23 BB23 BB23 BB23 BB23 BB23 FF08 5K048 BA32 BA34 DC07 EB10 EB11 GB05 HA01 HA02 5K101 KK12 LL01 LL13

Claims (5)

[Claims] 1. A monitoring terminal device for collecting specific monitoring data in a prespecified monitoring target facility or environment, wherein the monitoring terminal device can collect different monitoring data other than the specific monitoring data. A monitoring terminal device in which a plurality of types of function expansion modules are selected in accordance with monitoring contents and data communication is possible with each other and detachably connected. 2. The monitoring terminal device is provided with a debug port, and the debug port is also used as a communication port with the function expansion module.
The monitoring terminal device according to 1. 3. The function expansion module comprises a demand amount, a temperature, a humidity, an electric energy, a fire occurrence, an insulation state, a foreign substance intruding into a casing of the monitored equipment, and an opened / closed state of a casing opening / closing door of the monitored equipment. Claim 1 or Claim 2 provided with the function for monitoring at least one of them.
The monitoring terminal device according to 1. 4. The function expansion module includes a storage unit for storing collected monitoring data, a communication unit for performing data communication with the outside of the device, and the storage unit in response to a data transmission request from the monitoring terminal device. The monitoring terminal according to any one of claims 1 to 3, further comprising: a control unit that controls the communication unit to transmit the monitoring data stored in the unit, so that the monitoring operation can be performed independently. apparatus. 5. A monitor for remotely monitoring a monitoring terminal device according to any one of claims 1 to 4 for monitoring an operating state of a monitoring target facility or a monitoring target environment via a network from a host computer. A monitoring system, wherein the monitoring terminal device automatically sends various kinds of monitoring data to a host computer when a data transmission date and time designated in advance is reached.