JPH08138182A - Liquid amount transaction measuring instrument - Google Patents

Abstract

PURPOSE: To provide a measuring instrument which can execute the grasp of the operating state of a device, the judgment of the quality of measured data, and the estimating of the faulty part of the device, etc., even at a distance place. CONSTITUTION: The liquid amount transaction measuring instrument 1 is provided with a measuring part 20 for a liquid level, temperature and the internal pressure of a tank, a liquid amount calculator 9, a printer 10, and a power unit 13, etc., as in the past. Here is particular, a diagnostic information-acquiring and controlling part 22 which controls the measuring part 20, the liquid amount calculator 9 and the power unit 13, and acquires data for diagnosis from these, a communication line control part 23, a circuit interface part 24, and a remote diagnosing and controlling part 21 which is installed at a distant place through a communication line 26, and controls the diagnostic information acquiring and controlling part 22 so as to make it transmit diagnostic information, and receives that data, and judges the quality of that data, and displays and records that result together with the data, and besides, estimates the faulty part, and displays and records it are added.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid trading metering device having a remote diagnosis / control function.

[0002]

2. Description of the Related Art As shown in FIG. 2, a conventional liquid volume trading and metering apparatus 1 includes a liquid level sensor 3, a temperature sensor 4, an atmospheric pressure sensor 5 and the like mounted on a tank 2. The detection output is input to the liquid level measuring unit 6, the temperature measuring unit 7, and the pressure measuring unit 8 to measure the liquid level, the temperature of the liquid and the gas layer, the gas layer pressure, etc., and the measurement data of these and these measurements. The liquid volume of the tank calculated by the liquid volume calculator 9 based on the data is displayed on the printer 10 and the display unit 11.
The operation unit 1 including a keyboard and the like in the liquid volume calculator 9
2 is connected.

When the device becomes abnormal, the operator or the monitor investigates the abnormal condition, requests the maker for repair, and the maintenance staff of the maker prepares for possible measures from the transmitted information and prepares for the on-site repair. I went to the hospital for diagnosis and repair. If the device cannot be restored with the prepared replacement parts, the down time of the device becomes long. Also, in the case of the liquid volume metering device mounted on a ship, the diagnosis / repair time is limited only when the cargo handling port enters the port, so sufficient diagnosis / repair cannot be performed after visiting the ship. In these cases, it may not be possible to perform the transaction measurement, which is the task of the device.

Further, when the frequency of occurrence of abnormality is low, it is necessary to continue the investigation for a long period of time, which requires long-term equipment and dispatch of measuring equipment, maintenance personnel, etc., resulting in an increase in maintenance cost. SUMMARY OF THE INVENTION The present invention eliminates the conventional drawbacks and provides a liquid volume transaction metering apparatus capable of grasping the operation status of the apparatus, judging the quality of measured data, estimating a failed portion, etc. even in a remote place.

[0005]

According to the present invention, a diagnostic information acquisition / control unit for controlling the measuring unit, the liquid volume calculator, and the power supply unit to obtain diagnostic data from them, and a communication line control unit, It is installed in a remote place via a line interface unit and a communication line, controls the diagnostic information acquisition / control unit to transmit diagnostic information, receives the transmitted data, and the data and the pass / fail judgment result of the data. Remote diagnosis that displays and records and estimates and displays the failed part
A control unit is added.

[0006]

1 is a block diagram of an embodiment of a liquid quantity trading and weighing apparatus 1 according to the present invention. The diagnostic information acquisition / control unit 22 controls the liquid level measurement unit 6, the temperature measurement unit 7, the pressure measurement unit 8, and the liquid amount calculator according to the instructions of the remote diagnosis / control unit 21 installed in a remote place by the operation of the maker maintenance staff. 9 and the power supply unit 13 to obtain diagnostic data indicating the operating state thereof, and send diagnostic information via the communication line control unit 23, the line interface unit 24, and the communication line 26. Remote diagnosis
The control unit 21 determines pass / fail of these data, displays / records the determination result together with the data, and estimates / displays / records the failure portion. Maintenance personnel perform diagnosis based on the displayed and recorded diagnostic information. If there is an abnormality, identify the faulty part from the diagnostic information, prepare replacement parts, etc. and go to repair. If spare parts are available at the site, issue a replacement instruction to the local operator,
Restore the equipment.

[0007]

As described above, according to the present invention, the liquid volume trading / measuring device includes a diagnostic information acquisition / control unit 22 and a communication line control unit 2.
3 and the line interface unit 24 and the remote diagnosis / control unit 21 via the communication line 26 enable efficient failure repair and minimize the stop period when the device is abnormal. In addition, since it requires only a minimum number of replacement parts at the time of repair without requiring skilled maintenance personnel, the effect of more efficient and economical maintenance of the device can be obtained.

[Brief description of drawings]

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

FIG. 2 is a block diagram of a conventional liquid volume trading and weighing device.

Claims (1)

[Claims] 1. A liquid level based on a detection output sent from a liquid level sensor, a temperature sensor and a pressure sensor attached to a tank,
A measuring unit for measuring the temperature and the pressure in the tank, a liquid amount calculator for calculating the liquid amount in the tank from the measurement data of the measuring unit, a printer for printing the liquid amount calculated by the liquid amount calculator, a power supply unit, In a liquid volume transaction metering apparatus including: a diagnostic information acquisition / control unit that controls the measuring unit, liquid volume calculator, and power supply unit to obtain diagnostic data from them, a communication line control unit, and a line interface unit. It is installed at a remote place via a communication line, controls the diagnostic information acquisition / control unit to transmit diagnostic information, receives the transmitted data, judges the quality of the data, and judges the quality of the data together with the data. A liquid volume trading metering device, which is provided with a remote diagnosis / control unit for displaying / recording, estimating and displaying the faulty part, and recording.