JPS5896437A - Data transmission system - Google Patents

Abstract

PURPOSE:To keep the matching of timing of sampling data, even if the reception is tantatively disable due to noise, by starting the sampling with a signal relating to time and providing the signal to the data through sampling. CONSTITUTION:A generating section 4 generates a signal SNO at a prescribed period and advances the content sequentially. A sampling control section 5 starts the sampling every time the signal SNO is inputted, samples a contact input CIN and an analog input AIN at the same time and gives the signal SNO to a transmission controlling section 6 as data DT together with the sampling data obtained through sampling. The controlling section 6 converts the data DT inputted from a control section 5 into a transmission signal for a transmission line 6a and transmits it to the line 6a. Based on the information of the signal SNO, the reception side connected to the line 6a recognizes the point of time when the sampling data is produced correctly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data transmission system that samples a plurality of data at the same time and transmits a plurality of data via a transmission path.

Conventionally, there has been a data transmission system of this type as shown in FIG. In the figure, 1 is the contact point C of the process equipment
A sampling control unit to which IN and analog input AIN are input gr+ as sampling targets; 2 is a generation unit that sequentially generates a time signal 87M in relation to time; 3 is inputted with data DT of the sampling control unit 1 and time signal 8TM; This is a transmission control unit that forms a transmission signal from the straw and sends it to the transmission path 3a.

Next, the operation will be explained. The humbling control section 1 samples the contact input CIN and the analog input AIN at the same time, and passes the sampling data obtained by this, that is, the data DT, to the transmission control section 3. Transmission control section 3
is supplied from the generator 2 when the data DT is input, and adds the time signal 8TM to the data DT to form a transmission signal in a predetermined format, and sends it to the transmission line 3a.

Since the conventional data transmission method is configured as described above, it is difficult to ensure that the time signal added to the sampling data corresponds accurately to the sampling time of the sampling data. was there.

The present invention is intended to eliminate the drawbacks of the conventional ones as described above, and is a data transmission method that can add a signal to the humpling field and humpling data to display it correctly when humpling. The purpose is to provide

Hereinafter, FIG. 2, which shows an embodiment of the present invention, will be explained. In FIG. 2, 4 is a generator that generates a signal SNO that returns from a time or a humpling number that maintains a certain relationship with this time, and 5 is a generator to which the signal SNO is input from the generator 4.
6 is a transmission control section that converts the data DT of the sampling control section 5 into a transmission signal and sends it to the transmission line 6a.

Next, the operation will be explained. The generating section 4 generates the signal SNO at a period of one foot, and also advances the contents of the signal SNO at intervals of one foot. The hump ring control unit 5 starts the hump ring operation every time the signal 8NO is input, and simultaneously humps the contact point C8 and the analog input AIN, and adds 1 to ζ1.
With the humpling data obtained from (:, 7 signal SN
O is passed to the data DT transmission control unit 6. The transmission control unit 6 receives data DT input from the sampling control unit 6.
is converted into a transmission signal on the transmission line 6a and sent to the transmission line 6a. On the receiving side (not shown) connected to the transmission path 6a, the transmission signal (even if the noise level reaches 1 tatami and becomes unreceivable, the transmission signal received by the receiver after the 7th stage has the above-mentioned signal SN).
Since the information on D is included in 1f1, based on this information, humpling data can be generated and the time dip can be accurately known.

In addition, in the above embodiment, there are two objects to be humpled, the contact manual power and the analog input, but the number of objects to be humpled may be one, or three or more.

As described above, according to the present invention, t1d% thumpling is activated by a signal related to time, and this 11ζ=1
Since the signal 7 is added to the humpling data obtained by the receiver (iii), the humpling data can be processed in a manner that corresponds correctly to the time, and even if reception is temporarily disabled due to noise etc. This has the effect of maintaining temporal consistency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional data transmission system, and FIG. 2 is a block diagram of a data transmission system according to a simple embodiment of the present invention. 1, 5--Sampling control section, 2.4--Generation section, 3.6--Transmission control section. Agent Kuzuno Individual - (and 1 other person) 4 l - 42 Drawing procedure amendment (voluntary) H 57i4.5 is 28 Mr. Commissioner of the Japan Patent Office■, Indication of the case Patent application 1986-1961.7-
j) 3. Person making the amendment 5, Subject of the amendment (1) Claims column of the specification (2) Detailed explanation of the invention column 6 of the IM specification, Contents of the amendment (1) Attachment O Amend the claims. (2) From line 8 to line 9 of page 3 of the specification IF, write “Contact input C
Correct 8J to "Contact input C engineering N". (3) Input C8 on page iiiga, line 17, line 17 of the statement
(4) In the 6th line of page 4 of the specification, the statement ``Signal 8NDJ is corrected to [signal f9No J.'' 7. Patent claim after correction of catalog of attached documents Claims after amending one document stating the range of the above In a data transmission system in which multiple sampling data obtained by sampling multiple inputs at the same time are transmitted via a transmission line, What is claimed is: 1. A data transmission system characterized in that the signal is sampled with a signal indicating the relationship with time that occurs sequentially at a predetermined period, and the signal is added to the sampled data resulting from this sampling and transmitted.

Claims (1)

[Claims] In a data transmission method in which multiple sampling data obtained by sampling multiple inputs at the same time are transmitted via a transmission line, the above inputs are ordered sequentially at a cycle of 71 zo r 1 pair, and the time and J jJ humpling is performed on the signal indicating the relationship between the two, and the data ζ2 is added to the above signal and transmitted by this mampling.1
A data transmission method that is characterized by the fact that