JPH0759176A - Remote supervisory controller - Google Patents

Abstract

PURPOSE:To attain time matching for the same time zone even in the remote supervisory equipment using a telephone line by providing a voice recognition section between a communication network management equipment and a local input output device, receiving a timecast voice signal from the telephone line and writing the recognized time data in a local memory device. CONSTITUTION:A local input output device 1 collects data of a site process and stores the data in a local memory device. A communication network control equipment 3 controls the communication state between the local input output device 1 and a telephone line 2. Then a sound recognition device 5 is provided between the both and sound information of timecast telephone service used to make time matching at the same time is fetched by the plural local input output devices 1 connecting to the telephone line 2. That is, each local input output device 1 makes a phone call to a timecast telephone service simultaneously before a time decided by each internal clock to sound record the sound signal of timecast information and each sound recognition function converts the sound signal into digital data, which are used for time matching.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring and control device using a general exchange line such as a telephone line, and more particularly, a data collecting device is provided on the local side and the collected data is called by a telephone. The present invention relates to a remote monitoring device that transmits to a host monitoring device using a line and collectively manages the data.

[0002]

2. Description of the Related Art Generally, in a simple remote monitoring device, a monitoring device having a CRT such as a personal computer and a printer is installed on the host (master station) side and the operating status and process values of the local process are transmitted. The system collects and collects process data, collects statistics, displays a CRT, prints a form on a printer, etc. to grasp the operating status of a process remotely and manage the operation. Here, a system using a telephone line as a transmission line can be easily and inexpensively constructed due to the development of communication devices and the development of data processing technology. The remote monitoring device of is adopted.

In such a remote monitoring device, a public line (telephone line) is used as the transmission line instead of the conventional dedicated line. Compared to the leased line, the telephone line is charged according to the time used, so by reducing the frequency and time of use, more economical operation becomes possible.

FIG. 2 shows the configuration of a general remote monitoring device. In the figure, in a simple remote monitoring device 10 using a telephone line, a personal computer CPU is used as a host, a modem with an NCU (network control unit) is installed as a transmission control device, and is connected to the telephone line 2.

On the local side, similarly, as a communication control device, a modem with NCU is connected to the telephone line 2 and connected to the local input / output device 1.

The local input / output device 1 is an RS232C interface 3a for connecting the process input / output device 1 for inputting process data and a modem with NCU.
A controller having and is generally used.

Here, in the local input / output device 1, in order to bring out the merit of the telephone line 2, the frequency of the connection with the host is reduced, and in order to reduce the connection time, the data of the input process is input. Data in the memory of the local I / O device and connect to the host PC 10 using the telephone line 2 about once a day.
Transmit data.

Further, in order to reduce the connection time, the data is edited and transmitted according to the total and statistics of the host. For example, if all the data collected every minute is transmitted, the data having 3600 items (24H) can be reduced to 24 items by editing the data into an average value for one hour.

Collecting such data, filing,
The local input / output device 1 of the simple remote monitoring device 10 using a telephone line, which performs the editing function, collects and edits data in units of time by performing time management with an internal clock. There is.

FIG. 4 shows a data collection cycle of 1 minute,
A telephone line 2 is connected from the host side 10 once a day to a local input / output device 1 that performs a data editing function that performs hourly integration, and data is transmitted by data transmission. It is a figure explaining the case where data collection.

In the figure, on the local side, the data collected every minute is stored in the memory together with the time data at every hour of every hour. When the local input / output device 1 has finished collecting the data for one day, the host 10 connects the telephone line by the notification from the local side or the management of the host side internal clock, The data stored in the memory of the Cull I / O device 1 is read by transmission. The data thus read by the host side 10 is re-edited into a daily driving report, a monthly driving report, etc., and a form is printed.

As described above, in the local input / output device 1 using the telephone line 2, the time management by the internal clock becomes important.

A general method for adjusting the time of the internal clock of such a conventional local input / output device will be described below.

Generally, time adjustment is performed once a day. This is because most of the internal clocks of the local I / O devices also use the same crystal oscillator as the host, so there is almost no time lag in about a day.
Since the telephone line is used, it is possible that the time cannot be adjusted for several days due to the host going down or being suspended. Therefore, it is better to adjust the time regularly.

The procedure for time adjustment from the host is as follows: (1) The host makes a call to the local input / output device once a day in a predetermined time zone.

(2) After the telephone is connected and the transmission between the local input / output device and the host is established, the time data (hours and minutes) is transmitted at the timing of the internal clock of the host.

(3) In the local input / output device, the time data sent by transmission is input and the internal clock is corrected.

(4) Then, in the local input / output device, when the internal clock is corrected in the advance direction as shown in FIG. 5A, the jumped time zone data is missing data. -After correction as data, restart the collection from the hour / zone, and in the case of a delay, return to the hour / zone and restart the data collection.

As described above, according to the conventional time adjustment method, the remote monitoring device on the host side receives time data. Therefore, when there are a plurality of local input / output devices, a plurality of local input / output devices are provided. When trying to adjust the time to the local I / O device, a plurality of local I / O devices must be simultaneously connected by a telephone line, and a plurality of lines must be connected to the host side. Such a remote monitoring device that connects multiple lines is not used in a simple remote monitoring device because the facility cost and maintenance cost increase in terms of cost, and time adjustment is performed for each local I / O device. A sequential method is used. Therefore, the time zone for time adjustment is
Since each local I / O device is in a different time zone, the consistency of the process data totaling results between the local I / O devices is not compensated when the time is adjusted.

For example, the one-hour integrated value of the outflow rate of the A station and the outflow rate of the B station which inflows the outflow rate of the A station is 1
The integrated time values should be the same within that time, but they will be different if the time is adjusted separately.

In order to minimize such discrepancy, it is necessary to set the time in the same time zone.

Further, since the time adjustment is left to the host side, the time adjustment at a fixed time cannot be compensated depending on the down of the host personal computer and the usage condition of the host line.

[0023]

According to the conventional time adjustment method of the simple remote monitoring device using the telephone line as described above, the time adjustment of a plurality of local input / output devices in the same time zone is not possible. It was impossible, and this made the data inconsistent among the locals.

Therefore, in the remote monitoring apparatus according to the present invention, even with such an inexpensive and simple remote monitoring apparatus using a telephone line, it is possible to set the time in the same time zone, and the discrepancy in the total data is minimized. This is to propose a remote monitoring control device that reduces the number.

[0025]

SUMMARY OF THE INVENTION A remote monitoring and control apparatus according to the present invention is a local input / output device for collecting data of on-site processes and storing and storing the same in a local memory device together with a collection time, and this local input / output device. A communication network management device that is connected between the call input / output device and the telephone line and manages the communication state of the communication network;
In the remote monitoring control device, which is connected to the local I / O device via the communication network management device and centrally monitors and controls the process data, the remote monitoring control device includes a communication network management device and a local monitoring device. -A voice recognition unit installed between the local input / output device and the time voice from the telephone line as time data, and a time when the time data recognized by this voice recognition unit is written in the local memory device. And a writing unit. The remote monitoring and control apparatus according to a second aspect of the invention is characterized in that the remote monitoring and control apparatus further comprises a start detection unit that is connected to the voice recognition apparatus and that starts the voice recognition by a time signal.

[0026]

In the remote monitoring and control apparatus of the present invention, the data of the on-site process is collected, stored together with the collection time in the local memory device and stored, and the communication network is provided between the local input / output device and the telephone line. A management device is connected to manage the communication status of the communication network, and a local remote monitoring device is connected to the local I / O device via the communication network management device to centrally monitor and control the process data. , A voice recognition unit is installed between the communication network management device and the local input / output device to capture time voice from the telephone line as time data, and the time data recognized by the voice recognition unit is stored in the voice recognition unit. It is characterized by writing in the cull memory device. Further, in the remote monitoring and control apparatus according to the second aspect of the present invention, a start detection unit is connected to the voice recognition device to start the voice recognition by time signal.

[0027]

EXAMPLE An example of the present invention will be described below. In FIG. 1, reference numeral 1 is a local input / output device for collecting data of on-site processes and storing and storing the same in a local memory device 1a together with a collecting time, 3 is a local input / output device 1 and a telephone line 2.
A communication network management unit 10 connected to the local I / O unit 1 for managing the communication state of the communication network is connected to the local I / O unit 1 via the communication network management unit 3 to centrally monitor the process data. A parent remote monitoring device 5c for controlling is installed between the communication network management device 3 and the local input / output device 1 and is a voice recognition unit for capturing time voice from the telephone line 2 as time data.
Reference numeral b is a time writing unit that writes the time data recognized by the voice recognition unit 5c in the local memory device 1a, and collects and saves process data remotely from the communication device connected to the telephone line 2. In a host remote monitoring device in which the local input / output device 1 and these input / output devices are connected by a communication control device, a voice for capturing time and time data between the communication control device and the input / output. It is a remote monitoring device with a recognition device. That is, in this embodiment, a plurality of local input / output devices 1 connected to the telephone line 2 described above.
As a method of simultaneously adjusting the time with respect to each other, a method of using the voice information of the time telephone service is used. That is, each of the local input / output devices 1 has a predetermined time before the internal clock of the internal device 1, for example,
Call the time-of-day phone service all at once one minute before.
Then, the voice of the time notification is recorded in the voice recognition block at the timing of the time signal reference sound, and by the voice recognition function,
It is used to adjust the time by converting it to the digital data of the time (hour, minute).

FIG. 3 shows the connection timing of the telephone line by the time telephone service by the telephone line and the timing of voice recognition. According to the internal time in the local input / output device, the time telephone service is automatically dialed at 23:59, for example. In addition, other local I / O devices are also 2
Since it is set to call the time service at 3:59, the time adjustment operation will be performed at the same time. Here, since the internal time of the local input / output device 1 should have an error of several tens of seconds at maximum in one day, any local input / output device can adjust the time to the same time.

Further, since the time telephone service has a large number of lines, it is considered that it rarely enters the waiting state, so that it is possible to enter the time more reliably than connecting to the host.

Next, when the time telephone service is connected,
Since the time service continuously reports the time by voice every 30 seconds, this is converted into digital data as time information by voice recognition. The method of voice recognition is to input the voice information to the voice recognition device, which follows at the timing of the reference frequency for notifying the time, and take out the time information from the voice signal. Here, the time-of-day voice notification is always the same, so that it is possible to recognize the specific speaker.

Then, the extracted digital information of the time information is input to the local input / output device 1 and the time is adjusted by the same method as the conventional one.

Time adjustment can be performed similarly in other local input / output devices. Here, if the connection between each local input / output device and the time telephone service does not deviate by more than 1 minute, the time can be adjusted at the same time. Further, even if a deviation of 1 minute or more occurs, the difference is about several minutes, so that the deviation of the total data can be minimized.

In the local input / output device 1, a NCU-equipped modem is used as a conventional communication line control device, and a voice recognition device 5 is connected to a telephone connection terminal (modular jack) 4 of the NCU-equipped modem. Connecting. The time information recognized by this voice recognition device 5 is RS2.
It is connected to the local input / output device 1 through the line 5a of 32C and is configured to pass the time adjustment data to the local input / output device 1.

In FIG. 1 and FIG. 2, first, the local input / output device 1 is set to a predetermined time at the same time as the other local input / output devices according to its internal time configured by software. Then, the time adjustment program operates. In the time adjustment program, firstly, (1) the automatic dial data is transmitted to the modem by using the RS232C line 3a connected to the modem. Upon receipt of this, the modem with NCU automatically dials the public line 2 and calls the time telephone service.

(2) Next, when the time telephone service is connected, the modem with NCU sends an RS to the local I / O device 1.
Information of connection completion is sent through the line 232C line 3a.

(3) As a result, the local input / output device 1
Waits for input of time and telephone information. That is, the time data read by the voice is awaited to be read through the line 5a of the RC232C connected to the time voice recognition device 5.

(4) At the same time, the switching command data to the telephone terminal 4 is output to the modem with NCU.

Then, (5) the modem with NCU switches the line to the connection terminal side 4 of the telephone while keeping the telephone line 2 connected. As a result, the voice notifying the time is input to the time voice recognition device 5.

(6) Since the time-of-day voice recognition device 5 reports the time in a format determined by the time-of-day telephone service, a time signal transmission tone with a frequency between the time voice and the next time voice is determined. Emit. The start detection unit 5b as a recognition timing detection circuit judges this, and notifies the voice recognition unit 5c of the start of time voice.

(7) In response to this start signal, the time-of-day voice recognition section 5c receives the voice signal input from the modem with NCU and performs voice recognition.

(8) The voice recognition unit 5c samples the input time voice signal, digitizes it, compares it with the time voice data registered in the internal memory 5d, and transmits the matched time and minute information. Store in buffer 5e. Thus, the time information at that time is stored in the transmission buffer 5e every time the time changes.

(9) Next, the local input / output device 1 can adjust the internal time by reading the present time set in the transmission buffer 5e.

(10) When the time adjustment is completed, NCU
The process is terminated by outputting a disconnection command for the telephone line 2 from the RC232C line 3a connected to the attached modem.

In this way, the time adjustment of the local input / output device 1 in the simplified remote monitoring device using the telephone line is performed by the time, and the time voice notification of the telephone service is performed by using the voice recognition device. It becomes possible to input data after converting it, and accurate time adjustment is possible regardless of the host.

As described above, according to the present embodiment, the time adjustment of the plurality of local input / output devices in the remote monitoring device using the conventional telephone line is performed by the telephone time service.
By using screws, it is possible to set the time of all the local I / O devices at approximately the same time, and the time can be adjusted for each local I / O device by the conventional remote monitoring device of the host. It is possible to minimize the inconsistency of the correction data due to the correction of the aggregated data of the process due to the deviation of the time adjustment, and the time adjustment time due to the down of the host or the busy line. Since the change of the number does not occur because of the telephone time service of NTT, it is possible to set the time accurately and accurately.

Furthermore, when the remote monitoring device and the local input / output device are located far away from each other, it is possible to use the telephone time service because the line fee can be reduced and the cost is low. It is an essential part of the system.

Further, the remote monitoring control apparatus according to claim 2 is, in the voice recognition apparatus, provided with a time voice recognition section for recognizing the voice of the telephone time service and a start detection section for starting the voice recognition in a time signal. A time-of-day voice recognition device, and in particular, it is characterized in that it is provided with a start detection unit that is connected to the voice recognition device and performs start of voice recognition by a time signal.

[0048]

According to the present invention, the accuracy of time management can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a remote monitoring device showing an embodiment of the present invention.

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

FIG. 3 is an explanatory view showing the operation of FIG.

FIG. 4 is an explanatory diagram showing data collection in a local input / output device.

FIG. 5 is an explanatory diagram showing an operation when there is a time correction in the local input / output device.

FIG. 6 is an explanatory view of the operation of the local input / output device.

[Explanation of symbols]

 1 ... Local input / output device 2 ... Public line 3 ... Communication network management device 5 ... Time voice recognition device 5b ... Start detection unit 5c ... Voice recognition unit 5d ... Internal memory

Claims (2)

[Claims] 1. A local input / output device for collecting data of on-site processes and storing and storing the same in a local memory device together with a collection time, and between the local input / output device and a telephone line. A communication network management device connected to manage the communication state of the communication network, and a parent side connected to the local I / O device via the communication network management device to centrally monitor and control the data of the process. A remote monitoring control device comprising: a remote monitoring device; and a voice recognition unit installed between the communication network management device and the local input / output device for capturing time voice from the telephone line as time data. And a time writing unit for writing the time data recognized by the voice recognition unit in the local memory device. 2. The remote monitoring control device according to claim 1, further comprising a start detection unit connected to the voice recognition device and performing start of voice recognition by a time signal.