JPH11243643A - Remote monitor control device and recording medium in which remote monitor control program for conducting remote monitor control is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the efficiency of transmission between a master station device and a peripheral station device. SOLUTION: Information is transmitted mutually between remote monitor control devices by the use of an HDLC-ABM transmission procedure. A means 10 which transmits monitor information signals at fixed periods from one device 1 to the other device 2 in order to detect the transmission abnormality and a means 15 which locks the transmission of the monitor transmission signal to be transmitted next, when the monitor information signal from the other device 2 is received before the information signal of the one device 1 is trasmitted are provided. Consequently, since the monitor information signals can be transmitted only when received information signals do not exist, the transmission efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a remote monitoring control device for transmitting periodic information and a recording medium storing a remote monitoring control program for executing the same.

[0002]

2. Description of the Related Art FIGS. 13 and 14 show a conventional transmission system. Figure
13 is directed to a configuration in which the device A exchanges data with the device B. In the device A, monitoring information is created by the periodic information activating means 10 in order to detect a transmission abnormality, and the monitoring information is transmitted to the device B via the transmitting means 11. In these cases, the transmission procedure is the HDLC procedure (HDLC: High-level Data Li
In this case, an asynchronous balanced mode (ABM: Asynchronous Balanced Mode) between multiple stations according to the nk Control procedures) is used.

When information other than the monitoring information is transmitted from the device A, if the transmission timings of the monitoring information and the other information overlap, information having a higher transmission priority is transmitted first. 11 and 21 are transmitting means, 12 and 22 are receiving means,
13 and 23 are input means, and 14 and 24 are transmission cycle timers.
Further, regardless of whether or not information is received from the device B, the monitoring information for detecting the transmission abnormality is continuously transmitted from the device A.

FIG. 14 shows a configuration in which the remote monitoring control devices (1) and (2) exchange data with external devices (1) to (N). In the remote monitoring control device, the periodic information activating unit 10 transmits the monitoring information to the external devices (1) to (N) via the transmitting unit 11 at regular intervals in order to detect a transmission abnormality. The remote monitoring control devices (1) and (2) have transmitted monitoring information to all external devices in the same cycle. In addition,
Reference numeral 3 denotes an external device, 31 denotes a transmitting unit of the external device, 32 denotes a remote monitoring control device information receiving unit, 34 denotes an external device information receiving unit, and the other reference numerals are the same as those in FIG.

[0005]

In the prior art shown in FIG. 13, when the monitoring information is transmitted from the device A to the device B, the periodic information activating means 1 is activated at a constant period. The transmission cycle cannot be changed. Therefore, even when information is received from the device B and transmission of monitoring information for detecting a transmission error is not necessary, A
Since the monitoring information is continuously transmitted from the device, A
The transmission load between the device and the B device has increased.

When information other than the monitoring information is transmitted from the device A, if the transmission timings of the monitoring information and the other information overlap, information having a higher transmission priority is transmitted first. Therefore, monitoring information with a low transmission priority could not be easily transmitted.

Further, because of the above two problems, the transmission period of the monitoring information cannot be shortened, and even if there is no other information transmission / reception, the transmission abnormality cannot be detected quickly. Was. On the other hand, in the prior art shown in FIG. 14, the remote monitoring control devices (1) and (2) and the external device (1)
(N) also has the same problem as the above.

The present invention has been made in view of the above circumstances, and a remote monitoring control device capable of improving transmission efficiency between a master station device and a slave station device, and a remote monitoring control device for executing the same. It is an object of the present invention to provide a recording medium on which a remote monitoring control program is recorded.

[0009]

According to a first aspect of the present invention, there is provided a remote monitoring control device for mutually transmitting information using an HDLC-ABM transmission procedure.
Means for transmitting monitoring information from one device to the other device at regular intervals to detect transmission abnormalities, and when information from the other device is received before transmitting the monitoring information from the one device, A means for locking transmission of monitoring information to be transmitted next is provided. Therefore, the monitoring information can be transmitted only when there is no reception information, so that the transmission efficiency is improved.

According to a second aspect of the present invention, there is provided a remote monitoring and control apparatus for mutually transmitting information using an HDLC-ABM transmission procedure. A transmission priority detecting means for assigning priorities to each information and transmitting, and a transmission waiting timer for the information having a low transmission priority are provided, and when the transmission waiting timer times out, transmission is performed regardless of the transmission priority. With means.

[0011] According to a third aspect of the present invention, in the remote monitoring control apparatus according to the first aspect, the transmission cycle when the monitoring information is transmitted from one device to the other device is determined by the one device. If there is no transmission information, a high-speed transmission is performed, and if there is transmission information, a means for automatically lowering the transmission information is provided.

According to a fourth aspect of the present invention, there is provided a remote monitoring and control apparatus for mutually transmitting information to and from an external apparatus, wherein monitoring information for detecting a transmission abnormality is transmitted to the external apparatus at regular intervals. Transmitting means for transmitting, before transmitting the monitoring information from the remote monitoring control device to the external device, receiving information monitoring means for receiving information from the external device, and transmitting from the external device before transmitting the monitoring information to the external device. Means for locking the transmission of the next monitoring information when the information is received.

According to a fifth aspect of the present invention, there is provided a remote monitoring and control apparatus for mutually transmitting information to and from an external apparatus, wherein monitoring information for detecting a transmission abnormality is transmitted to the external apparatus at regular intervals. Transmitting means for transmitting, transmission information monitoring means for monitoring at regular intervals the presence or absence of information to be transmitted from the remote monitoring control device to the external device, and a short transmission cycle when there is no transmission information, and Means is provided for changing the transmission cycle so that the monitoring information is transmitted at a long transmission cycle.

A remote monitoring control device according to claim 6 of the present invention is a remote monitoring control device for mutually transmitting information to and from an external device, wherein monitoring information for detecting a transmission abnormality is sent to the external device at regular intervals. Transmission means for transmitting, analysis based on the information received from the external device, transmission destination setting means for setting where to send the monitoring information and information other than monitoring information destination, based on the setting contents A means for notifying the setting destination is provided.

The recording medium according to claim 7 of the present invention comprises:
In a recording medium storing a remote monitoring control program for executing a remote monitoring control device for mutually transmitting information using the HDLC-ABM transmission procedure, monitoring information is periodically transmitted from one device to detect a transmission abnormality. To execute a function of transmitting to the other device and a function of locking transmission of monitoring information to be transmitted next when information from the other device is received before transmitting monitoring information from the one device. The remote monitoring control program was recorded.

The recording medium according to claim 8 of the present invention comprises:
In a recording medium storing a remote monitoring control program for executing a remote monitoring control device for mutually transmitting information using the HDLC-ABM transmission procedure, information transmitted from one device to the other device has priority over information. A transmission priority detection function for transmitting the transmission priority and a transmission waiting timer for the information having the low transmission priority, and a function of transmitting when the transmission waiting timer times out regardless of the transmission priority. The remote monitoring control program for was recorded.

The recording medium according to claim 9 of the present invention is:
A recording medium recording a remote monitoring control program for executing the remote monitoring control device according to claim 1.
The transmission cycle when transmitting monitoring information from one device to the other device executes the function of transmitting at high speed when there is no transmission information from the one device, and automatically delaying when there is transmission information. The remote monitoring control program was recorded.

[0018]

FIG. 1 is a block diagram showing a first embodiment. In FIG. 1, the same parts as those in FIG. What is newly added in the present embodiment is reception information monitoring means 15 and 25 for monitoring the reception signals of the reception means 12 and 22 for receiving transmission information from each of the devices A and B in each of the devices A and B. is there.

Next, the operation will be described. As shown in FIG. 1, monitoring information for detecting a transmission abnormality is created by the periodic information activating means 10, and the transmission cycle is set in the transmission cycle timer 5. When the transmission cycle timer 5 times out,
This is notified to the transmission means 11 and the monitoring information is transmitted to the B apparatus.

The information from the device B is received by the receiving means 12, and the fact is notified to the received information monitoring means 15. The reception information monitoring means 15 receiving this notifies the transmission cycle timer 14 and clears the transmission cycle timer. This gives A
The device no longer transmits monitoring information to device B until the next time-up. When the information from the device B is no longer received and the transmission cycle timer 14 times out, the device A transmits monitoring information to the device B.

According to the present embodiment, when the device A receives the information from the device B, it clears the transmission cycle timer by the received information monitoring means. Therefore, the device A does not receive the information from the device B, and can transmit the monitoring information immediately when the transmission period timer expires, and as a result, efficient transmission becomes possible.

FIG. 2 is a configuration diagram showing another embodiment. In FIG. 2, the same parts as those in FIG. What is newly added in this embodiment is a transmission priority detecting means 16 (26) for setting a transmission priority when transmitting information, and a transmission waiting timer 17 (information for monitoring information) having a low transmission priority. 27).

Next, the operation will be described. As shown in FIG. 2, the transmission priority is set by the transmission priority detection unit 15 for the information to be transmitted, and the transmission priority is notified to the transmission unit 11. In response to this, the transmitting means 11 rearranges the information to be transmitted in the order of higher priority and transmits it to the B apparatus. At this time, the transmission waiting timer
Set 17

When the transmission waiting timer 17 times out, the transmission means 11 is notified of the fact, and the transmission means 11
Transmits monitoring information regardless of the transmission priority. As a result, monitoring information having a low transmission priority can always be transmitted within a certain period of time.

According to the present embodiment, transmission priority is set for each piece of information, and transmission is performed. Therefore, when there is a large amount of information to be transmitted, low priority information cannot be easily transmitted, but a transmission waiting time is set. Thus, even when the amount of transmission information is large, even low-priority information can be reliably transmitted within a fixed time.

FIG. 3 is a configuration diagram showing still another embodiment. 3, the same parts as those in FIG. 13 are denoted by the same reference numerals, and the description is omitted. What is newly added in the present embodiment is the transmission information monitoring means 18 (28) for determining whether or not there is other transmission information.

Next, the operation will be described. As shown in FIG. 3, the transmission information monitoring means 18 (28) notifies the transmission cycle timer 14 (24) at regular intervals of the presence or absence of transmission information to the B apparatus. When there is no transmission information, the timer value of the transmission cycle timer 14 is set to a small value so that the constant cycle information activation means 10 transmits monitoring information in a short transmission cycle.

When there is transmission information, the timer value of the transmission cycle timer 14 is changed so that the monitoring information is transmitted at a long transmission cycle. According to the present embodiment, the transmission period of monitoring information can be automatically changed according to the amount of information transmitted and received between the devices, and efficient transmission can be performed.

FIG. 4 is a configuration diagram of still another embodiment. In the present embodiment, the configuration is based on the relationship between the remote monitoring control device and the external device. In FIG. 4, the same parts as those in FIG. In FIG. 4, 1 is a remote monitoring control means, 3 is an external device,
It is characterized in that the reception information monitoring means 15 is provided in the remote monitoring control device.

Next, the operation will be described. As shown in FIG. 4, monitoring information for detecting a transmission error is created by the constant cycle information activating means 10 and the transmission cycle is set in the transmission cycle timer 14. When the transmission cycle timer 14 times out, the transmission means 11 is notified of the fact and the monitoring information is transmitted to the external device 3. Also, information from the external device is received by the receiving means 12 and notified to the received information monitoring means 15.

The reception information monitoring means 15 receiving this notifies the transmission cycle timer 14 of the fact and clears the transmission timer. As a result, the monitoring information is not transmitted from the remote monitoring control device to the external device. When there is no information received from the external device and the transmission cycle timer 14 times out,
The monitoring information is transmitted to the external device again.

According to the present embodiment, the monitoring information for detecting a transmission error can be transmitted only when necessary between the master station device and the external device, so that the transmission efficiency is improved.

FIG. 5 is a configuration diagram of still another embodiment. 5 is different from FIG. 4 in that a transmission information monitoring unit 16 is provided in place of the reception information monitoring unit 15 in FIG. 4, and the rest is the same as FIG. The transmission information monitoring means 16 has a function of monitoring whether there is transmission information to an external device.

Next, the operation will be described. First, the transmission information monitoring unit 16 notifies the periodic information activation unit 10 of the presence / absence of transmission information to the external device at regular intervals. In the case of the setting of no transmission information, the timer value of the transmission cycle timer 14 is set small so that the constant cycle information activation means 10 transmits the monitoring information in a short transmission cycle. In the case of setting to have transmission information, the timer value of the transmission cycle timer 14 is changed so that the monitoring information is transmitted in a long transmission cycle. Subsequent processing is the same as in FIG.

According to this embodiment, the transmission period of the monitoring information can be automatically changed according to the amount of information transmitted and received between the master station device and the external device. Detection of transmission abnormalities when there is no transmission can be performed quickly.

FIG. 6 is a configuration diagram of still another embodiment. 6 differs from FIG. 4 in that a transmission destination setting unit 19 is provided instead of the transmission information monitoring unit 16 in FIG.
Others are the same as FIG. The destination setting means 19 has a function of setting to which external device the remote monitoring control device transmits monitoring information and information other than monitoring information.

Next, the operation will be described. As shown in FIG. 6, the information received from the external device is analyzed by the transmission destination setting unit 19, and the transmission unit 11 is notified of the transmission destination of the monitoring information and the information other than the monitoring information. Subsequent processing is the same as in FIG.

According to the present embodiment, the transmission destination is determined according to the content of the information received from the external device, so that the monitoring information can be efficiently transmitted to the external device having a higher necessity.

FIG. 7 is a configuration diagram showing still another embodiment. The present embodiment is a specific example in a case where the device A (remote monitoring control device master station) 1 shown in FIG. 1 has a plurality of slave stations (1) to (N). In addition, the code of the slave station apparatus is set to the remote monitoring control apparatus master station 1. 33 is a switchboard.

As has already been described, the master station device 1 that transmits monitoring information at a fixed period via the fixed period information activating unit 10, the transmission period timer 14, and the transmitting unit 11; A remote monitoring and control device composed of N slave stations transmitting the monitoring information at regular intervals through the means 10, the transmission cycle timer 14 and the transmission means 11 and further transmitting the input data from the switchboard 33 from the transmission means 11; It is an example.

In the present embodiment, the reception information monitoring means 15 for monitoring whether or not information from the child station apparatus has been received is incorporated in the master station apparatus. The transmission is performed.

Next, the operation will be described. In the master station device 1, the monitoring information is created by the periodic information activating means 10, and a predetermined monitoring information transmission cycle is transmitted for each slave station device regardless of the transmission speed between the master station device and the slave station device. Periodic timer 14
Set to. When the transmission cycle timer 14 times out, the transmission means 11 is notified of the fact and the monitoring information is transmitted to the slave stations (1) to (N).

According to the present embodiment, the monitoring information for detecting the transmission abnormality between the master station device and the slave station device is not always transmitted from the master station device, but is used when there is no reception information from the slave station device. , The transmission efficiency between the master station device and the slave station device can be improved. This allows the master station device to transmit the monitoring information at a cycle optimal for the transmission state of each slave station device.

FIG. 8 is a configuration diagram of still another embodiment. In the present embodiment, the reception information monitoring means 15 is omitted from the master station apparatus of FIG. 7, and the priority detection means 16 which examines and sets the transmission priority at the time of transmitting information to each slave station apparatus; As means for reliably transmitting information within a certain time, a transmission wait timer 17 is provided.

Next, the operation will be described. In the slave station device, the transmission priority detecting means 16 adds
The transmission priority is set and the transmission means 11 is notified. In response to this, the transmitting means 11 rearranges the information to be transmitted in the order of higher priority and transmits the information to the master station device. At this time, a preset time is set in the transmission waiting timer 17. When the transmission waiting timer 17 times out, the transmission means 11 is notified. The transmitting means 11 transmits the monitoring information to the master station device regardless of the transmission priority.

According to the present embodiment, when information is transmitted from the slave station device to the master station device, the transmission priority is set for each piece of information, and the information is transmitted. Although transmission is difficult, it is possible to reliably transmit information having a low priority within a certain time even when the amount of transmission information is large, by setting a transmission waiting time.

FIG. 9 is a configuration diagram of still another embodiment. In this embodiment, the reception information monitoring means of the master station device shown in FIG.
Instead of 15, transmission information monitoring means 18 for monitoring whether or not transmission information is present is provided.

Next, the operation will be described. In the master station, transmission information monitoring means periodically checks for the presence or absence of transmission information to the slave station.
From 18, the transmission cycle timer 14 is notified. In the case of the setting of no transmission information, the timer value of the transmission period timer 14 is notified from the periodic information activation means 10 to the transmission period timer 14 so that the monitoring information is transmitted to the slave station device in a short transmission period. Set smaller.

In the case of setting to have transmission information, the fixed period information activating means 10 notifies the transmission period timer 14 of the fact, and the transmission period is set so that the monitoring information is transmitted to the slave station device at a long transmission period. Change the timer value of timer 14. The other operations are the same as those in FIG.

According to this embodiment, the transmission period of the monitoring information can be automatically changed according to the amount of information transmitted and received between the master station device and the slave station device. The transmission error can be quickly detected when no information is transmitted or received.

FIG. 10 is a configuration diagram of still another embodiment. In the present embodiment, a remote monitoring control device composed of a master station device 1 that transmits monitoring information at a fixed period via a fixed period information activating unit 10, a transmission period timer 14, and a transmitting unit 11, and N external devices This is an example. As a configuration of the present embodiment,
A reception information monitoring unit 15 that monitors whether information from an external device has been received is incorporated in the master station device.

Next, the operation will be described. In the master station device, the monitoring information is created by the periodic information activating means 10, and a predetermined monitoring information transmission cycle is set in the transmission cycle timer 14. When the transmission cycle timer 14 times out, it notifies the transmission means 11 to that effect and transmits monitoring information to the external device.

When information from the parent station external devices (1) to (N) is received via the receiving means 12, respectively, the receiving means 12
Is notified to the reception information monitoring means 15. Upon receiving this, the reception information monitoring means 15 notifies the transmission cycle timer 14 of the fact and clears the received transmission timer for the external device.

When information from the external device is no longer received,
The receiving unit 12 notifies the reception information monitoring unit 15 of the fact. The reception information monitoring means 15 notifies the transmission cycle timer 14, and the transmission cycle timer 14 sets the transmission cycle of the monitoring information. The transmission cycle timer 14 times out, and transmits the monitoring information to the external device again.

According to the present embodiment, the monitoring information for detecting a transmission error can be transmitted only when necessary between the master station device and the external device, so that the transmission efficiency is improved.

FIG. 11 is a configuration diagram of still another embodiment. In the present embodiment, a transmission information monitoring means 18 is inserted in place of the reception information monitoring means 15 in FIG. 10, and the connection is partially changed.

Next, the operation will be described. In the master station apparatus, the transmission information monitoring means 18 notifies the transmission cycle timer 14 of the presence or absence of information to be transmitted to the external apparatus at regular intervals. In the case of the setting of no transmission information, the timer value of the transmission cycle timer 14 is set small so that the constant cycle information activation means 10 transmits the monitoring information in a short transmission cycle. In the case of setting to have transmission information, the timer value of the transmission cycle timer 14 is changed so that the monitoring information is transmitted in a long transmission cycle. Operations other than the above are the same as those in FIG.

According to this embodiment, the transmission cycle of the monitoring information can be automatically changed according to the amount of information transmitted and received between the master station device and the external device. Can quickly detect transmission errors.

FIG. 12 is a configuration diagram of still another embodiment. In the present embodiment, a destination setting means 19 is inserted in place of the reception information monitoring means 15 in FIG. 10, and the connection is partially changed.

Next, the operation will be described. The information received from the external device is analyzed by the destination setting means 19, and the destination is determined based on the monitoring information and the received information other than the monitoring information. According to the present embodiment, it is possible to transmit monitoring information and other information to an external device that is more necessary.

The technique described in the above description is written as a program that can be executed by a computer, for example, on a recording medium such as a magnetic disk, an optical disk, or a semiconductor memory, and applied to various devices or transmitted via a communication medium. It can also be applied to various devices. The computer that realizes the central device reads the program recorded on the recording medium, and executes the above-described processing by controlling the operation of the program.

[0062]

As described above, according to the present invention, when the monitoring information is created, the transmission period is set to the transmission period timer, and after the timer expires, the monitoring information is transmitted, and at the same time, the monitoring device transmits the monitoring information. Since the transmission cycle timer is cleared when information is received, monitoring information can be transmitted only when there is no reception information, and transmission efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 12 is a block diagram showing a configuration of still another embodiment of the present invention.

FIG. 13 is a block diagram showing a conventional technique.

FIG. 14 is a block diagram showing another conventional technique.

[Explanation of symbols]

 1, A device, B device 3 External device 10, 20 Fixed period information activation means 11, 21 Transmission means 12, 22 Reception means 13, 23 Input means 14, 24 Transmission period timer 15, 25 Reception information monitoring means 16, 26 Transmission priority detection means 17, 27 Transmission wait timer 18, 28 Transmission information monitoring means 19 Destination setting means 31 Transmission means 32 Remote monitoring control device information receiving means 33 Switchboard 34 External device information receiving means

Claims (9)

[Claims] 1. A remote monitoring control device for mutually transmitting information using an HDLC-ABM transmission procedure, means for transmitting monitoring information from one device to the other device at regular intervals in order to detect a transmission abnormality; A remote monitoring control device comprising means for locking transmission of the next monitoring information to be transmitted when information from the other device is received before transmitting the monitoring information from the one device. 2. A remote monitoring and control apparatus for mutually transmitting information using an HDLC-ABM transmission procedure, wherein a transmission priority in which information transmitted from one apparatus to another apparatus is assigned with a priority for each information and transmitted. A remote monitoring control device comprising: a detecting unit; and a transmission waiting timer for the information having a low transmission priority, and a unit for transmitting when the transmission waiting timer expires regardless of the transmission priority. 3. The remote monitoring control device according to claim 1, wherein the transmission cycle when transmitting the monitoring information from one device to the other device is high-speed when there is no transmission information from the one device. And a means for automatically delaying when there is transmission information. 4. A remote monitoring and control device for mutually transmitting information to and from an external device, a transmission means for transmitting monitoring information for detecting a transmission abnormality to the external device at regular intervals, and from the remote monitoring and control device to the external device. Reception information monitoring means for receiving information from an external device before transmitting the monitoring information, and transmitting the next monitoring information when receiving information from the external device before transmitting the monitoring information to the external device A remote monitoring control device comprising means for locking the remote control. 5. A remote monitoring and control apparatus for mutually transmitting information to and from an external device, a transmission means for transmitting monitoring information for detecting a transmission error to the external device at regular intervals, and a remote monitoring and control apparatus for transmitting the information to the external device. Transmission information monitoring means for monitoring at regular intervals whether or not there is information to be transmitted, and a transmission cycle for transmitting the monitoring information at a short transmission cycle when there is no transmission information, or at a long transmission cycle when there is such transmission information. A remote monitoring and control device comprising means for changing. 6. A remote monitoring control device for mutually transmitting information to and from an external device, comprising: a transmitting means for transmitting monitoring information for detecting a transmission abnormality to the external device at a fixed period; Destination setting means for setting where to send the monitoring information and information other than the monitoring information, and means for notifying the setting destination based on the setting contents. Remote monitoring control device. 7. A recording medium for recording a remote monitoring control program for executing a remote monitoring control device for mutually transmitting information using an HDLC-ABM transmission procedure, wherein the monitoring information is periodically transmitted to detect a transmission abnormality. A function to transmit from one device to the other device, and a function to lock the transmission of monitoring information to be transmitted next when information from the other device is received before transmitting the monitoring information from the one device. Recording medium for recording a remote monitoring control program for executing the above. 8. A recording medium storing a remote monitoring control program for executing a remote monitoring control device for mutually transmitting information by using an HDLC-ABM transmission procedure, the information being transmitted from one device to the other device. A transmission priority detection function for assigning priorities to information for transmission and a transmission wait timer for the information having a low transmission priority are provided, and when the transmission wait timer times out, transmission is performed regardless of the transmission priority. A recording medium on which a remote monitoring control program for executing a function is recorded. 9. A recording medium on which a remote monitoring control program for executing the remote monitoring control device according to claim 1 is recorded, wherein a transmission cycle at the time of transmitting monitoring information from one device to another device is as follows. A recording medium in which a remote monitoring control program for executing a function of transmitting at high speed when there is no transmission information from one device and automatically delaying the transmission information when there is transmission information is recorded.