JP2002063677A - Remote supervisory device and remote control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote supervisory device or remote control device, with which a throughput required to a CPU is reduced, a high performance CPU is not required and costs can be reduced. SOLUTION: When communicating with a slave observation station or slave alarm station, a CPU 102 starts an interface unit (any one of 104, 105 and 106) corresponding to a slave station to become a communication target and communicates with the slave station through a modem (any one of 107, 108, 109 and 110) corresponding to this unit and decoding processing is applied to data received from the slave station by the started correspondent interface unit (any one of 104, 105 and 106).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring device for remotely monitoring rainfall and water level through a plurality of monitoring stations arranged near a dam, for example, and an alarm device for issuing a warning for discharging a dam, for example. The present invention relates to a remote control device for remotely controlling a station.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional remote monitoring / control device 20.
0 is a configuration example. 202 is a remote monitoring / control device 2
Reference numeral 00 denotes a central processing unit (hereinafter, referred to as a CPU) that performs overall control of the entire apparatus including transmission control.

[0003] Reference numeral 203 denotes an HDLC transmission control interface unit (hereinafter, abbreviated as an interface unit) for realizing data transmission in conformity with Kenden No. 21.
It is. 207 is the interface unit 20
3 is a modem (hereinafter referred to as "modem").

[0004] Reference numeral 204 denotes an HDLC transmission control interface unit (hereinafter, abbreviated as an interface unit) for realizing data transmission conforming to Kenden Tsutsumi No. 27.
It is. Also, 208 is the interface unit 20
4, a modem (hereinafter referred to as a modem).

[0005] Reference numeral 205 denotes a tone transmission control interface unit (hereinafter, abbreviated as an interface unit) for realizing data transmission in conformity with the Kenden Tsutsumi No. 1 standard. Reference numeral 209 denotes a modem (hereinafter, referred to as a modem) connected to the interface unit 205.

Reference numeral 206 denotes a tone transmission control interface unit (hereinafter, abbreviated as an interface unit) for realizing data transmission in conformity with the Kenden Tsushin No. 2 standard. Reference numeral 210 denotes a modem (hereinafter, referred to as a modem) connected to the interface unit 206.

Reference numeral 201 denotes a wireless device for performing wireless data communication with an observation slave station or an alarm slave station (not shown). The data received from these slave stations is stored in the corresponding modem 207.
To 120, while the modem 20
The data input from 7 to 210 is transmitted to any of the slave stations via the corresponding wireless channel.

[0008] The remote monitoring / control device 20 having such a configuration.
0, when acquiring observation information from an observation slave station located in a remote place, first, the CPU 202 sets the interface unit 203 or 205 according to the type of the observation slave station from which the observation information is obtained. Activate and record the code for acquiring observation information from the observation slave station. Here, a case where the interface unit 205 is activated will be described.

On the other hand, the interface unit 2
05 controls the modem 209 to output a predetermined tone signal based on the code recorded by the CPU 202. Under such control, the modem 209 generates a predetermined tone signal, and this tone signal
Is transmitted wirelessly to the above-mentioned observation slave station.

On the other hand, when receiving the radio signal from the radio 201, the observation slave station identifies from the tone signal that it is a request for observation information from the remote monitoring / control device 200, and observes within a predetermined time. The obtained observation information is encoded, and the corresponding tone signal is transmitted to the wireless device 201 through the wireless signal.
Send to

On the other hand, the remote monitoring / control device 200
Then, the wireless device 201 receives a wireless signal from the observation slave station, extracts a tone signal, and outputs the tone signal to the interface unit 205 through the modem 209.

The interface unit 205 samples the tone signal input through the modem 209 and outputs the sampled signal to the CPU 202 as received data. CPU
202 performs a corresponding decoding process on the reception data input from the interface unit 205 to obtain observation information observed by the observation slave station.

[0013] Even when the observation information is obtained from the observation slave station through the interface unit 203, the same operation is performed except that the protocol used is different from that of the interface unit 205.

Next, the operation in the case where the remote monitoring / control device 200 issues an instruction to issue an alarm to an alarm slave station located in a remote place will be described. First, CPU2
02 activates the interface unit 204 or 206 according to the type of the alarm slave station to be controlled, and records a code for controlling the alarm slave station and issuing a predetermined alarm. Here, the interface unit 2
06 will be described.

On the other hand, the interface unit 2
06 controls the modem 210 so as to output a predetermined tone signal based on the code recorded by the CPU 202. Under such control, the modem 210 generates a predetermined tone signal, and this tone signal
Is transmitted wirelessly to the alarm slave station.

On the other hand, when receiving the radio signal from the radio device 201, the alarm slave station identifies from the tone signal that the request is an alarm issuance request from the remote monitoring / control device 200, and responds to the request for a predetermined period. Issue a corresponding alarm.

Note that, even when the alarm slave station is controlled to issue an alarm through the interface unit 204,
The same operation is performed except that the protocol used is different from that of the interface unit 206.

However, in the conventional remote monitoring / control device 200, since the CPU 202 controls the plurality of interface units 203 to 206 as described above, the load is originally high, and the plurality of received data is adjusted to each format. However, there is a problem that a high-performance CPU must be mounted in order to obtain sufficient performance in order to perform the decoding process.

[0019]

In a conventional remote monitoring device or remote control device, the processing performance required of the CPU is high, so that it is necessary to provide a high-performance CPU, resulting in an increase in the cost of the remote monitoring device. was there.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a remote monitoring device and a remote control device capable of reducing the processing power required of a CPU, eliminating the need for a high-performance CPU, and reducing costs. It is intended to provide a device.

[0021]

In order to achieve the above object, the present invention relates to a remote monitoring apparatus for communicating with a plurality of observation slave stations having communication functions using mutually different communication systems and acquiring observation information. A communication means for communicating with a plurality of observation slave stations, and a communication method corresponding to each of the plurality of observation slave stations, and data received from the observation slave station through the communication means,
A plurality of interfaces for performing predetermined decoding processing and acquiring observation information are provided.

According to another aspect of the present invention, there is provided a remote control device for communicating with a plurality of slave stations having communication functions using mutually different communication schemes and controlling the slave stations. It comprises communication means for communicating, and a plurality of interfaces respectively corresponding to the communication schemes of the plurality of slave stations and performing predetermined decoding processing on data received from the slave station through the communication means to obtain information. I did it.

In the remote monitoring device and the remote control device configured as described above, when communicating with an observation slave station or a slave station to be controlled, data received from the slave station is decoded by a corresponding interface. I have.

Therefore, according to the remote monitoring device and the remote control device configured as described above, the mounted CPU does not need to perform a decoding process on a plurality of different types of received data, so that a CPU having a low processing capability can be used. However, sufficient performance can be exhibited even if the device is used, and the cost of the device can be reduced.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a remote monitoring / control device according to an embodiment of the present invention. Reference numeral 102 denotes a central processing unit (hereinafter, referred to as a CPU) that performs overall control of the entire device including the transmission control in the remote monitoring / control device 100.

The interface unit 103 is provided as shown in FIG.
, The HDLC transmission control interface unit 104 and the tone transmission control interface unit 1
05 and the tone transmission control interface unit 106
And these are integrated into one unit.
2 is connected to the bus.

HDLC transmission control interface unit (hereinafter abbreviated as interface unit) 10
4 is provided with two channels (1ch, 2ch), data transmission conforming to the Kenden No. 21
It realizes data transmission conforming to the standard, and has a function of decoding received data. 1ch is
Compatible with data transmission based on Kenden Tsutsumi No. 21 and 2c
"h" corresponds to data transmission conforming to Kenden Tsutsumi No. 27.

Tone transmission control interface unit (hereinafter abbreviated as interface unit) 105
Is an interface unit that realizes data transmission in conformity with the first issue of Kenden Tsutsumi, and has a function of decoding received data.

Further, a tone transmission control interface unit (hereinafter, simply referred to as an interface unit) 1
Reference numeral 06 denotes an interface unit for realizing data transmission conforming to Kenden Tsushin No. 2 and having a function of decoding received data.

Reference numeral 107 denotes an interface unit 104
(Hereinafter referred to as a modem). Reference numeral 108 denotes a modem (hereinafter, referred to as a modem) connected to the 2ch of the interface unit 104.

Reference numeral 109 denotes a modem connected to the interface unit 105 (hereinafter referred to as a modem). Reference numeral 110 denotes a modem connected to the interface unit 106 (hereinafter referred to as a modem).

Reference numeral 101 denotes a wireless device that performs wireless data communication with an observation slave station or an alarm slave station (not shown). The data received from these slave stations is transmitted to the corresponding modem 107
To 110, while the modem 10
The data input from 7 to 110 is transmitted to any of the slave stations via the corresponding wireless channel.

Next, the remote monitoring / control device 10 having the above configuration
The operation of 0 will be described. First, an operation for acquiring observation information from an observation slave station located in a remote place will be described.

First, the CPU 102 activates the interface unit 104 or 105 in the interface unit 103 according to the type of the observation slave station from which the observation information is obtained, and acquires the observation information from the observation slave station. Record the code for Here, a case will be described in which one channel of the interface unit 104 is used in order to perform data transmission with an observation slave station conforming to Kenden No. 21.

On the other hand, the interface unit 1
04 controls the modem 107 to output a predetermined HDLC signal based on the code recorded by the CPU 102 through 1ch. Under such control, the modem 107 generates a predetermined HDLC signal,
The C signal is wirelessly transmitted to the observation slave station via the wireless device 101.

On the other hand, when receiving the radio signal from the wireless device 101, the observation slave station identifies from the HDLC signal that it is a request for observation information from the remote monitoring / control device 100, and observes within a predetermined time. The obtained observation information is encoded, and the corresponding HDLC signal is transmitted to the wireless device 1 through a wireless signal.
Send to 01.

On the other hand, the remote monitoring / control device 100
Then, the wireless device 101 receives the wireless signal from the observation slave station, extracts the HDLC signal, and outputs it to the 1ch of the interface unit 104 through the modem 107.

The interface unit 104 has one channel
The HDLC signal input from the modem 107 is sampled to obtain received data, and this data is subjected to a decoding process to obtain observation information. This observation information
Output to the CPU 102 through the bus.

Even when the observation information is obtained from the observation slave station through the interface unit 105, the reception data obtained by sampling is subjected to a decoding process to obtain the observation information, except that the protocol used is different from that of the interface unit 104. Then, the data is output to the CPU 102.

Next, the operation in the case where the remote monitoring / control device 100 issues an instruction to issue an alarm to an alarm slave station located in a remote place will be described. First, CPU1
02 activates the interface unit 104 or 106 in the interface unit 103 according to the type of the alarm slave station to be controlled, and records a code for controlling the alarm slave station to issue a predetermined alarm. I do. Here, a case will be described in which two channels of the interface unit 104 are used in order to perform data transmission with an alarm slave station conforming to Kenden No. 27.

On the other hand, the interface unit 1
04 controls the modem 108 to output a predetermined HDLC signal based on the code recorded by the CPU 102 through 2ch. Under such control, the modem 108 generates a predetermined HDLC signal,
The C signal is wirelessly transmitted to the alarm slave station through the wireless device 101.

On the other hand, when receiving the radio signal from the wireless device 101, the alarm slave station identifies from the HDLC signal that the request is for issuing an alarm from the remote monitoring / control device 100, and responds to the request for a predetermined period. Issue a corresponding alarm.

When an HDLC signal is received from the alarm slave station, the interface unit 104
Sample the HDLC signal to obtain the received data,
Then, the data is subjected to decryption processing. The result of this processing is
Output to the CPU 102 through the bus.

Further, even when the alarm slave station is controlled to issue an alarm through the interface unit 106,
The same operation is performed only by using a different protocol from the interface unit 104.

As described above, in the remote monitoring / control device having the above configuration, when communicating with the observation slave station or the alarm slave station, the data received from the slave station is transmitted to the corresponding interface unit (104, 105, 106). ) To perform the decryption processing.

Therefore, according to the remote monitoring / control device having the above configuration, the CPU 102 does not need to perform a decoding process on a plurality of different types of received data. However, sufficient performance can be exhibited, and the cost of the device can be reduced.

The present invention is not limited to the above embodiment. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0048]

As described above, according to the present invention, when communicating with an observation slave station or a slave station to be controlled, data received from the slave station is decoded by the corresponding interface. I have.

Therefore, according to the present invention, the mounted CPU can process a plurality of different types of received data.
CPU with low processing capacity because there is no need to perform decryption processing
Can provide a remote monitoring device and a remote control device that can exhibit sufficient performance even if the device is used and can reduce the cost of the device.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of an embodiment of a remote monitoring / control device according to the present invention.

FIG. 2 is a circuit block diagram showing a configuration of an interface unit of the remote monitoring / control device shown in FIG.

FIG. 3 is a circuit block diagram showing a configuration of a conventional remote monitoring / control device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 control device 101 wireless device 102 central processing unit (CPU) 103 interface unit 104 HDLC transmission control interface unit 105 tone transmission control interface unit 106 tone transmission control interface unit 107 modem 108 modem 109 Modem 110… Modem

Continued on the front page F term (reference) 2F073 AA11 AA19 AB01 BB01 BC02 CC03 CC08 CC12 DD02 DE13 FG01 FG14 GG01 5K048 AA03 BA30 BA35 CA08 DA02 DB01 DC01 EA11 EB02 EB03 EB10 FB08 FB09 FC01 HA01 HA02 HA05 HA07

Claims (2)

[Claims] 1. A remote monitoring device that communicates with a plurality of observation slave stations having communication functions using mutually different communication schemes and acquires observation information, wherein: a communication unit that communicates with the plurality of observation slave stations; Each corresponding to the communication method of the slave station, the data received from the observation slave station through the communication means,
And a plurality of interfaces for performing predetermined decoding processing and acquiring the observation information. 2. A remote control device that communicates with a plurality of slave stations having communication functions using mutually different communication schemes and controls the slave station, wherein: a communication unit that communicates with the plurality of slave stations; And a plurality of interfaces for performing a predetermined decoding process on the data received from the slave station through the communication means and acquiring the information.