JPS62191788A - System for recording crustal data - Google Patents

Abstract

PURPOSE:To make it possible to prevent the leakage of recording data recorded on a terminal apparatus due to erroneous call, by transmitting and receiving an identification number between each terminal apparatus and a terminal controller. CONSTITUTION:The time signal from a sound receiving apparatus O1 is inputted to a sound/electric signal converting device O2 every hour on the hour and the sound thereof is converted to an electric signal to perform the resetting and restarting of a clocking device K1. This time is inputted to the system clock device K3 of a terminal controller TC as a clocking time signal. The setting of a system time is also performed in terminal devices T1-Tn in the same way. By this method, the system times of the controller TC and the devices T1-Tn are set to be identical. Thereafter, the controller TC successively calls out the devices T1-T2 using a telephone circuit and checks whether a call is erroneous or not when the circuit is connected to transmit the identification number inherent to each of the devices T1-Tn to an apparatus from the controller TC. Thereafter, each of the devices T1-Tn performs the transmission of recording data when transmission content coincides with the identification number.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to the remote acquisition of unmanned terminal devices and their signals as part of earthquake prediction aimed at understanding and elucidating the actual state of crustal activity, especially short-term fluctuations. The present invention relates to a crustal data acquisition system that is composed of an observation network consisting of a central processing unit and that collects data stored in each terminal device via a public line that automatically calls data at regular intervals.

[Prior Art] Conventionally, this type of system has been composed of a data acquisition section, a communication line, and a terminal device, and when acquiring acquired data, the communication line is used to manually call up the data acquisition section. , data transfer processing was to be performed from the data acquisition unit to the terminal device.

[Problems to be Solved] Since the conventional system described above uses a manual data collection method using a communication line for each terminal device, there is a risk of data leakage due to an erroneous call. In addition, since the acquisition time is not attached to the acquired data, the acquired data can only be used within a limited range, and when the scope of data acquisition is relatively small, the number of terminal devices and measuring instruments is also small. Therefore, it does not pose any particular problem in terms of continuous use or functionality, but
However, as the scope of data becomes wider and the number of data identification and terminal devices that need to be collected increases, it becomes necessary to reduce the burden on operators, eliminate meetings to assign data generation times, and improve system operational efficiency and effective data acquisition processing. The disadvantage is that it cannot be planned.

In particular, when a cumulative error occurs in the system time of each terminal device and the central processing unit, missing data will occur (actually, data has been acquired, but it will be treated as missing data due to the error with the system time). . Of course, both must match the actual time that serves as the reference.

On the other hand, the location where each terminal stirrup is installed can be subject to various weather conditions such as coastal areas and mountainous areas, and although the measurement conditions are suitable as there is no traffic or construction sites, the environmental conditions are extremely harsh. Due to various adverse conditions, the frequency of failures of measuring equipment connected to terminal equipment increases, and regular maintenance becomes difficult due to the number of connected terminals and the widening of the measurement target area. It has become difficult to implement this method without it, and it has the disadvantage that it must be dealt with after the situation in which data acquisition is impossible occurs.

[Means for solving problems] The crustal data acquisition system of the present invention, which solves the above-mentioned conventional problems, includes a terminal controller and a terminal device,
A unique identification number is assigned to each terminal device, and when the line is connected between the terminal controller and the terminal device, it is confirmed whether the identification number matches the identification number sent to the terminal device, and a correct response is made within a specified time. A data leakage prevention means that stops the connection if there is no data leakage due to general calls, and a data leakage prevention means that stops the connection to prevent data leakage due to general calls, and a data leakage prevention means that prevents data leakage due to the lapse of time between the system internal time in the terminal controller and the terminal device and the actual time. In order to eliminate missing data caused by errors, a means for adjusting the time by resetting and restarting the clock using an audio/electrical signal converter that converts the time signal from the audio receiver every hour into an electrical signal, and the terminal. a data acquisition means for storing data transmitted from the device together with time data in a collected data file of the terminal controller; and a data acquisition means for storing failure information transmitted from the terminal device to the terminal controller in an off-site management table and visually displaying the same at all times. The apparatus includes an output means, and is configured to visually display acquired data stored in a data file at any time in response to an output instruction from the display instruction means.

[Example] Next, the present invention will be described in detail with reference to the drawings showing a preferred example.

? Figure jS1 is a block diagram showing one embodiment of the present invention, and Figure 2 is a partially enlarged view thereof. In the figure, TC is a terminal controller, T1 to T are terminal devices, TBL is a fault management table, and K! is a clock device, 01 is an audio receiving device, 02 is an audio electrical signal converter, KB is a keyboard, P
R is printer, FDD is floppy disc device, DK
is a magnetic disk device, Dr is a fault display panel, K2 is an alarm device, K3 is a system time device, s, -5n are measuring devices,
21 ~ Sentence. is the wiring.

When the pressure becomes constant, a time signal from the audio receiving device O1 is input to the audio electrical signal converting device 02, which converts this audio into an electrical signal, and resets the clock device to 1 and restarts it. This time is then input as a time signal to the system time device 3 of the terminal controller TC. The system time is also set on the terminal devices T1 to T0 using a similar method.

With this time adjustment method, the system times of the terminal controller TC and the terminal device TI-Tn are set to be the same. Thereafter, the terminal controller TC controls each terminal device TI-
``rn'' are called sequentially using a telephone line, and when the telephone line is connected, it is first checked to see if it is an incorrect call, and the terminal controller TC sends an identification number unique to each terminal device to the terminal device. If the transmitted content matches the unique identification number, TI-"rn transmits the collection Qv'-data from the storage section of the terminal device to the terminal controller TC, but if the response content is invalid, no transmission processing is performed.

Further, if an abnormality occurs in the measuring instruments 5l-sn connected to the terminal devices T1-Tn, such information is also transmitted from each terminal device T1-Tn to the terminal controller TC at the time of data acquisition. terminal controller TC
Then, based on this information, select the corresponding terminal devices T1 to T.
The fault type of n is determined and visually displayed on the fault display iDP.

[Effects of the Invention] As explained above, according to the present invention, by transmitting and receiving an identification number between each terminal device and the terminal controller, it is possible to prevent leakage of collected data collected in a terminal device due to an erroneous call. I can do it. In addition, by synchronizing the time using an audio receiving device, an audio electrical signal converter, and a clock device, it is possible to eliminate the error between the actual time and the system internal time, which has the effect of preventing the occurrence of missing data. .

In addition, the operating status of the measuring instruments connected to each terminal device can be monitored at all times on the terminal controller side, and detailed information can be recognized at a glance through visual display, allowing for quick emergency measures in the event of a breakdown. Furthermore, since the alarm system operates at the same time, the occurrence of an abnormality can be recognized even in a remote location.

[Brief explanation of drawings]

FIG. 1 is a configuration block diagram of a crustal data acquisition system according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view of the crustal data acquisition system shown in FIG. 1. TC: Terminal controller TI-”rn: Terminal device TBL: 1 in fault management table = Clock device Ol: Audio receiving device 02:
Audio electrical signal converter KB: Keyboard PR: Printer FDD: Floppy disk device DK: Magnetic disk device DP: Fault display panel K2: Alarm device 3 System time device 31-3n: Measuring equipment exchange 1~text. :wiring

Claims (1)

[Claims] It has a terminal controller and a terminal device, and a unique identification number is assigned to each terminal device, and whether the identification number matches the identification number sent to the terminal device when a line is connected between the terminal controller and the terminal device. data leakage prevention means that prevents data leakage due to general phone calls by checking the connection and canceling the connection if there is no correct response within a specified time; and a system internal time and actual time information in the terminal controller and the terminal device. In order to eliminate missing data that occurs due to time errors as time passes, the clock is reset using an audio/electrical signal converter that converts the time signal from the audio receiver every hour on the hour into an electrical signal.
time adjustment means by restart; data acquisition means for storing data transmitted from the terminal device together with time data in a collected data file of the terminal controller; What is claimed is: 1. A crustal data acquisition system comprising: an output means for storing data in a management table and visually displaying the acquired data at all times;