JP2002342869A - Measurement and control information acquiring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measurement and control information acquiring method capable of improving the extensibility and the flexibility in acquiring the information, transmitting the synchronized measurement and control information at an arbitrary timing by an information provider, and acquiring the information by an information demander at an arbitrary timing. SOLUTION: A data transfer object (plug X) is prepared between the information provider 1 and the information demander 2, the information provider transmits the acquired information to a data transfer object at an arbitrary timing (S1-S3), and transmits the event information on which the information has been transmitted, to the data transfer object (S4). The information demander recognizes the transmission of the measurement and control information from the event information of the data transfer object at an arbitrary timing to perform the measurement and control processing (S5), acquires the measurement and control information from the data transfer object (S6-S8), and carries out the control functions A, B, C on the basis of the information (S9).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for acquiring measurement and control information, and more particularly to a system for acquiring a plurality of measurement data and control data having a relationship.

[0002]

2. Description of the Related Art Acquisition of measurement and control information is applied to, for example, power measurement equipment and monitoring and control equipment. Various measurement data is acquired on the measurement and control target side, and these measurement data are transmitted to the control device. . Also, necessary control data is generated from the control device side and transmitted to the measurement / control target side.

For example, in a power measurement facility, a dynamometer is connected to a test vehicle, and an engine performance test and a power transmission performance test are performed by controlling the vehicle speed and torque and controlling the torque and speed of the dynamometer. In addition, measurement
The control system collects the torque measurement data of the dynamometer and the speed measurement data of the engine at that time, and transmits them to the control device.

As described above, a plurality of measurement data are collected from a measurement / control object and transmitted to the measurement / control device side, and conversely, control data is transmitted from the measurement / control device side to the control object side. In the information acquisition method, when it is necessary to provide a relationship (significance) between a plurality of data, a set of these data is defined and handled in the defined data unit. For example, in the field of power measurement, I
There is a rule called MACS.

In this case, in the data transmission method in which a data collection is defined, since the data collection differs depending on the measurement / control target, if the information provider matches the information requesting side, the scalability and flexibility of the measurement / control system can be improved. There is a problem lacking.

As a method of solving this inconvenience, there is a method in which the information provider individually transmits the data elements to the information requester.

[0007]

As described above, there is a problem of synchronism in the method in which the information provider individually transmits each data element. In other words, if data is not provided as a group but is provided asynchronously for each data element, the information requesting side will process the data without synchronization even if it should originally be handled simultaneously.

This is shown in FIG. The information provider 1 individually transmits the information A, B, and C to the information requester 2. In response to the information transmission, the information request source 2 calls the control function (A, B, C) every time the information A, B, C is transmitted, and performs the processing.

Therefore, as a method for ensuring the synchronization, as shown in FIG. 3, an event notifying that the information provider 1 has finished providing the synchronized information is transmitted to the information requester 2, and The request source 2 temporarily stores the information A, B, and C until the acquisition of the event information, and calls the control function (A, B, C) to perform the processing when the event information is acquired.

However, in this method, unless the information provider 1 transmits event information, the information requester 2 cannot execute the process, and the information requester 2 cannot acquire information at an arbitrary timing. For this purpose, it is necessary to separately prepare a control procedure for mutually inquiring information provision and information request between the information provider 1 and the information requester 2.

An object of the present invention is to enhance the expandability and flexibility of information acquisition, and furthermore, an information provider transmits synchronized measurement / control information at an arbitrary timing, and an information requester transmits the information at an arbitrary timing. An object of the present invention is to provide a method of acquiring measurement and control information.

[0012]

According to the present invention, a data transfer object for each set of measurement / control information is prepared between an information providing source and an information requesting source, and the information providing source synchronizes with the object at an arbitrary timing. The following methods are used to transmit the measurement and control information, and to enable the information requester to obtain the information from the object at an arbitrary timing, and to improve the expandability and flexibility of the information acquisition by changing the data transfer object. It is characterized by.

An acquisition method of measurement / control information for an information provider to acquire measurement / control information related to each other, to acquire the measurement / control information as information synchronized by an information requesting source, and to perform measurement / control processing. A data transfer object is prepared for each set of measurement / control information between the information provider and the information requester, and the information provider transmits the acquired information to the data transfer object at an arbitrary timing. And transmitting event information indicating that the information has been transmitted to the data transfer object, and the information requesting source transmits measurement / control information from the event information of the data transfer object at an arbitrary timing for executing the measurement / control processing. And transmitting measurement and control information from the data transfer object.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a processing procedure for obtaining measurement and control information according to an embodiment of the present invention. This figure differs from FIG. 3 in that a data transfer object (plug) is prepared between the information provider 1 and the information requester 2. This plug is provided for each set of measurement and control information.

The information provider 1 has information A,
Each time B and C are acquired, the information is transmitted to one plug X (S1 to S3). Further, when the transmission of the information A, B, and C is completed, the transmission completion event information is transmitted to the same plug X (S4).

Therefore, the information provider 1 can provide the related information A, B, and C synchronously at an arbitrary timing without being restricted by the presence or absence of the information request from the information requester 2.

When executing the control function, the information request source 2 obtains, as a notification, that the event information has been transmitted to the plug X (S5), whereby the information A, B, C synchronized with the plug X is obtained. Is provided, and information A, B, and C are obtained respectively (S6 to S6).
8), call the control functions (A, B, C) (S9) and execute the processing.

Therefore, the information request source 2 obtains the related information A, B, and C synchronized at an arbitrary timing without making an inquiry about the provision of the event information with the information A, B, and C from the information provider 1. Processing becomes possible.

[0019]

As described above, according to the present invention, a data transfer object for each set of measurement / control information is prepared between an information providing source and an information requesting source, and the information providing source assigns an arbitrary timing to the object. Synchronized measurement and control information is transmitted, and the information requester can obtain the information from the object at any timing, so that information is provided without preparing a control procedure for mutually inquiring between the information provider and the requester The source transmits measurement / control information synchronized at an arbitrary timing, and the information request source can acquire the information at an arbitrary timing.

Further, to change the acquisition specification of the measurement / control data, it is sufficient to change the data transfer object, and the expandability and flexibility of information acquisition can be improved.

[Brief description of the drawings]

FIG. 1 is a flowchart showing measurement / control information acquisition processing according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a conventional measurement / control information acquisition process.

FIG. 3 is a flowchart of a conventional measurement / control information acquisition process.

[Explanation of symbols]

 1 ... information provider 2 ... information requester

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F073 AA22 AB02 AB03 CC01 CC20 DD01 GG01 5H215 AA10 BB05 CC07 CX08 GG13

Claims (1)

[Claims] An information provider acquires measurement and control information related to each other, and acquires the measurement and control information as information synchronized with an information requesting source, and performs measurement and control information for performing measurement and control processing. An acquisition method, wherein a data transfer object for each set of measurement / control information is prepared between the information providing source and the information requesting source, and the information providing source transmits the obtained information to the data transfer object at an arbitrary timing. And the event information that the information has been transmitted to the data transfer object. The information requester measures the event from the event information of the data transfer object at an arbitrary timing for executing the measurement / control processing. A method for acquiring measurement / control information, characterized by recognizing transmission of control information and acquiring measurement / control information from the data transfer object; formula.