KR0135159B1 - Multiple transmitting and receiving method for using wire & wireless path - Google Patents

Abstract

The present invention relates to a multiplex transmission and reception method using a wired or wireless single path to enable multiple wired and wireless transmission and reception between a plurality of independent systems.

To this end, the present invention provides a step (40, 41, 50, 51), the system transmits a transmission signal in the standby state, receiving a partial signal for transmission and reception of the transmitted signal to search whether the system corresponding to the designated receiving system ( 42, 43, 52, 53) Receiving a transmission signal in the case of a system corresponding to the designated receiving system as a result of the search (44, 45) and receiving a transmission signal when the system is not a system corresponding to the designated receiving system as a result of the search. It is performed by the steps 46 and 56 to stop.

Description

Multiple transmission / reception method using wired / wireless single path

1 is a block diagram of a conventional communication system

2 is a block diagram of hardware using a wired single path to which the present invention is applied

3 is a block diagram of hardware using a wireless single path to which the present invention is applied

4 is a block diagram of a transmission signal according to the present invention

5 is a flowchart illustrating an embodiment of a multiple transmission / reception method according to the present invention.

6 is a flowchart illustrating another embodiment of a multiple transmission / reception method according to the present invention.

7 is a state diagram showing a data transmission and reception process between systems according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: control unit, 2, 3, 4: subordinate unit,

5-10, 12-17: independent system, 11: line,

G1-Gn: group signal

The present invention relates to a multiple transmission / reception method between a plurality of independent systems, and more particularly, to a multiple transmission / reception method using a wired / wireless single path.

1 is a block diagram of a conventional communication system.

In the conventional communication system, as illustrated in FIG. 1, a control unit 1 is connected to a plurality of slave units 2, 3, and 4 and a plurality of slave units 2, 3, and 4 by a single line. Consisting of a single-way asynchronous communication method, asynchronous infrared remote controller (Remocon) is also applicable.

Each of the dependent units 2, 3, and 4 is assigned a specific identification code, and the control unit 1 transmits a control command using the identification code of the specific dependent unit.

Although the identification codes of the plurality of subordinates 2, 3, and 4 are variously used and used, the process of accessing the subordinates 2, 3, and 4 and transmitting a command is similar to that of an infrared remote controller.

However, the conventional communication system has a problem that it is not easy to transmit and receive and is not expandable because it is a single line, and the complexity and installation cost increase when the complex operating system is applied.

In order to improve the above problems, an object of the present invention is to provide a multiplex transmission and reception method using a wired or wireless single path to enable multiple wired and wireless transmission and reception between a plurality of independent systems.

In order to achieve the above object, the present invention provides a method of transmitting a transmission signal in a standby state, receiving a partial signal for transmission and reception among transmitted signals, and searching for a system corresponding to a designated reception system. In the case of a system corresponding to the system, the method may be performed by receiving a transmission signal and stopping the reception of the transmission signal when the system is not the system corresponding to the designated reception system as a result of the search.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2 is a block diagram of hardware using a wired single path to which the present invention is applied, and FIG. 3 is a block diagram of hardware using a wireless single path to which the present invention is applied.

As shown in FIG. 2, the hardware to which the present invention is applied is composed of a wired line 11, which is a single path connecting N independent systems 5-10 and N independent systems 5-10.

In addition, the hardware to which the present invention is applied consists of a radio line having a single channel connecting N independent systems 12-17 and N independent systems 12-17 as shown in FIG. .

The N independent systems 5-10 and 12-17 perform independent tasks for each property, and communicate with other independent systems through system wired or wireless, and N independent systems 5-10 and 12-17. The communication line and the ports P1-Pn of 17 can be switched in and out.

4 is a block diagram of a transmission signal according to the present invention.

The transmission signal according to the present invention is a first group signal indicating a reception side recognition and a search code specifying a reception system, a second group signal indicating a total amount of data to be transmitted, and a third group indicating a transmission side identification code indicating a transmission system. Signal, a fourth group signal representing an error correction code, a fifth group signal representing a command code and sixth to Nth group signals representing data corresponding to address number designation, file name and other information flows. do.

Each group signal may be configured with any number of bits, and the first group, second group and third group signals may be respectively deleted as necessary to minimize the total amount of transmission data.

5 is a flowchart illustrating an embodiment of a multiplexing and transmitting method according to the present invention, and is effectively used when the amount of data amount is large.

First, the system waits for transmitting the transmission signal in the standby state, which is the initial state (40).

When a specific system that wants to transmit in the standby state transmits a transmission signal, all the systems receive the first and second group signals indicating the receiving side recognition and search code and the total data amount, and the first system indicating the receiving side recognition and search code. One group signal is searched to find out whether the system corresponds to the receiver (41, 42, 43).

In the system corresponding to the search result receiving side, all remaining group signals are received, the first group signal representing the receiving side recognition and search code or Using the third group signal indicating the transmission side identification code and the search code of the first group signal, a signal indicating the reception side recognition and the search code indicating reception completion is sent to the transmission side system (44, 45).

In addition, if it is not the system corresponding to the receiving result of the search, the reception of the remaining group signals is stopped, and the time required for the total data communication is calculated using the second group signal representing the total amount of data, and then for the calculated time. The transmission and reception are stopped to make communication impossible (46, 47, 48).

If the number of data to be transmitted is 10 groups and the transmission time per group is t (μsec), the transmission and reception is impossible for 10 t (μsec) and wait.

6 is a flowchart showing another embodiment of the multiple transmission / reception method according to the present invention, which is used in a communication network having a small amount of displacement of a data amount and a fixed amount of data focused on a unique function of each system.

When the entire system transmits a transmission signal from a specific system to be transmitted in a reception standby state in which the entire system is in an initial state, all the systems receive a first group signal indicating a receiving side recognition and a search code, and a first indicating the receiving side recognition and a search code. The group signal is searched to find out whether the system corresponds to the receiver (50, 51, 52, 53).

If the search result is a system corresponding to a receiving side, all remaining group signals are received, and the receiving side recognition and searching is performed by using the first group signal representing the receiving side recognition and the search code or the third group signal representing the transmitting side recognition code. A signal representing the code is sent (54, 55).

In addition, when the search result is not the system corresponding to the receiving side, the reception of the remaining group signals is stopped, and since the communication network has a fixed data amount, data transmission and reception with other systems are stopped for a predetermined time required for data communication between the transmission and reception systems. It makes communication impossible (56, 57).

7 is a state diagram illustrating a data transmission / reception process between systems according to the present invention, and illustrates a data transmission process between the second independent system 6-13 and the fourth independent system 8,15.

First, the system waits for a transmission signal to be transmitted from a system to be transmitted in an initial reception standby state.

When the transmission is started while changing the signal of the communication port P2 in the second independent system 6 and 13 (t1), the second independent system 6 in each of the independent systems except for the second independent system 6 and 13 is started. And the first and second group signals G1 and G2 transmitted from (13) (t2).

Each independent system uses the received first and second group signals G1 and G2 to determine whether the system corresponds to the receiver and processes the received system.

That is, the other independent systems except for the second and fourth independent systems recognize that the receiving side identification code is not their own identification code and define it as the communication unavailable time during the data transmission / reception time (t2-t6) and stop the transmission and reception. After the time elapses, it enters the standby mode.

The data transmission / reception time (t2-t3) is calculated using the second group signal, but the data transmission / reception time is fixed in a communication network having a fixed data amount with small displacement of the data amount.

By using the second group signal, the data transmission / reception time may be calculated by knowing the total number of groups to be transmitted from the second group signal and multiplying the total number of groups by the required transmission time per group.

Further, the second and fourth independent systems continuously transmit and receive data even after time t2, and when transmission and reception of transmission data are completed (t3), after a predetermined time elapses (t4), the fourth independent system, which is a receiving side, receives information on completion of reception. The system transmits to the second independent system that is the sender (t5).

The second independent system, which is the transmitting side, receives the information on the completion of the reception and enters the reception standby state after having a communication unavailable time for a predetermined time (t5-t6).

When the displacement of the amount of data to be transmitted is large, all of the group signals of FIG. 4 are transmitted, and the first and second group signals are also received by independent systems on all receiving sides.

In addition, when the displacement of the data amount is small and the emphasis is on the unique function of each independent unit, the signal except for the second group signal among the group signals of FIG. 4 is transmitted, and only the first group signal is received by the independent system on all receiving sides. .

In addition, when the amount of data to be transmitted is large and high-speed data transmission is required, signals other than the third group signal among the group signals of FIG. 4 are transmitted, and the first and second group signals are received by all receiving independent systems.

In addition, in the case of a communication network having a fixed amount of data to be transmitted and received frequently, signals except for the second and third group signals of the group signals of FIG. 4 are transmitted, and only the first group signal is received by the independent systems on all receiving sides. .

The present invention configured and operated as described above enables data transmission and reception between a plurality of independent systems in a single line, thereby reducing the line installation cost, and thus, is economically advantageous and easy to expand. It can be applied to the communication network between the wireless communication network and the composite home appliances.

Claims (1)

A multiplexing method for transmitting and receiving data to and from a plurality of transceivers using a single wired or wireless path, comprising: Detecting a signal received from the single wired / wireless path to determine which transmitting / receiving device the signal specifies; Detecting an amount of data to be transmitted / received to / from the designated transceiver according to the determination result; Performing a transmission / reception operation of the data or stopping a data transmission / reception operation for a predetermined time according to the detection result; And repeating the steps if a predetermined time has elapsed in the stop step.