KR100547278B1 - Most path expander - Google Patents

Abstract

The present invention relates to a last path expansion device, and more particularly, to a most path expansion device that is composed of only N expansion ports to operate normally by using any port as an input. According to the present invention, the path of the expansion port is expanded so that the ring structure is always formed regardless of whether the most recent device is connected. In addition, the present invention is a ring structure in which the transmission and reception path of the data is not broken by switching to the extended path of the expansion port in the case of abnormal operation or when a problem occurs in the optical cable transmitting the optical signal between the expansion port and the most device. To be connected and transmitted.

Most device. Expansion Path, Path Switching, Most Automatic Path Switching Device

Description

Most path expansion apparatus for MOST

1 is an automatic path switching device for most according to the prior art.

Figure 2 is a control block diagram for the expansion of the most path in accordance with the present invention.

Figure 3 is an embodiment of the operating state when the problem of the release or connector of the path expansion device according to the present invention.

4 and 5 is an embodiment showing an operating state diagram of the most path expansion apparatus according to the present invention.

             Explanation of symbols on the main parts of the drawings

50: most automatic path switching device 100: the second most device

110: firstmost device 120: most network (most string)

port1 ~ port4: Expansion port

The present invention relates to a most path expansion device, and more particularly to a most path expansion device for extending the switching path.

Recently, a MOST device, which is a vehicle network device configured in a ring form, has been developed, and attempts have been made to incorporate various vehicle electronic devices into the most recent device. Therefore, the various electronic devices mounted in the vehicle are implemented on the most ring 120, and the various electronic devices implemented on the most ring 120 can be operated and controlled anywhere in the most device. Done.

Hereinafter, the most recent path switching device according to the prior art.

1 is an automatic path switching device for most according to the prior art.

The most automatic path switching device 500 shown in the figure is provided with four expansion ports port1, port2, port3, and port4. However, it is possible for the expansion port to have a larger number depending on the embodiment.

The transmitting terminal Tx2 and the receiving terminal Rx2 of the second expansion port are connected to a most network 120 (hereinafter referred to as a 'most ring') 120. Therefore, the transmission terminal Tx2 transmits the signal input to the automatic path switching device 500 to the most ring 120 side. The receiving terminal Rx2 receives a signal provided from the most ring 120. Meanwhile, the transmission terminal Tx2 of the second expansion port port2 is connected to the transmission terminal Tx3 of the third expansion port port3. In addition, the receiving terminal Rx2 of the second expansion port port2 is connected to the transmitting terminal Tx3 of the third expansion port port3. That is, the second expansion port port2 serves to provide a signal provided from the first expansion port port1 to the third expansion port port3.

The receiving terminal Rx of the firstmost device 110 and the receiving terminal Rx2 of the second expansion port port2 are connected to the transmitting terminal Tx3 of the third expansion port port3. The transmitting terminal Tx of the first most recent device 110 and the transmitting terminal Tx4 of the fourth expansion port port4 are connected to the receiving terminal Rx3 of the third expansion port port3. That is, the third expansion port port3 receives the signal from the first most recent device 110 and transmits the signal to the most ring 120 through the second expansion port, the fourth expansion port, and the first expansion port. Will provide a signal. The third expansion port port3 receives the received signal from the second expansion port and provides the received signal to the firstmost device 110 or the fourth expansion port.

The transmission and reception terminals Rx3 and Tx3 of the third expansion port are connected to the transmission terminal Tx4 of the fourth expansion port. In addition, the transmitting terminal Tx4 of the fourth expansion port is connected to the receiving terminal Rx2 of the secondmost device and the transmitting terminal Tx1 of the first expansion port. The receiving terminal Rx4 of the fourth expansion port is connected to the transmitting terminal Tx1 of the first expansion port and the transmitting terminal Tx of the secondmost device.

Various types of most recent devices may be connected to the third and fourth expansion ports port3 and 4. As shown, in the embodiment, the two most device devices are connected, and as an embodiment, the first device device 110 is described as a device device having a function of a hands-free device, and the second device device 100 is an audio input / output device. A description will be given of a most recent device having the function of the device.

Next will be described the operation of the automatic path switching device for most according to the prior art made of the above configuration.

The firstmost device 110 having the function of a hands free device is connected to a third expansion port 3. The second most recent device 100 having a function of an audio input / output device is connected to a fourth expansion port port4. No first device is connected to the first expansion port port1 (in this case, the first expansion port is in a state in which there is no connected last device, and as a result, the ring is disconnected).

In this case, the fourth expansion port port4 selects the 4A path (the path selected when the fourth expansion port has the most device), and the third expansion port 3 selects the 3A path (the most expansion port in the third expansion port). The path selected when the device is present is selected, and the first expansion port port1 selects the path 1B (when no first device is present in the first expansion port).

Therefore, the earphone signal of the cellular phone input from the first most apparatus 110 is output through the second most apparatus 100, and the microphone signal input from the second most apparatus 100 is transmitted to the first most apparatus 110. Path to input is as follows.

The earphone signal of the cellular phone outputted from the transmission terminal Tx of the firstmost device 110 is provided to the reception terminal Rx3 of the third expansion port port3 of the most automatic path switching device. And it is transmitted to the transmission terminal (Tx4) of the fourth expansion port (port4) connected to the receiving terminal (Rx3) of the third expansion port (port3), and the transmission terminal (Tx4) of the fourth expansion port (port4) It is transmitted to the receiving terminal (Rx) of the second most recent device 100 is connected.

On the contrary, the microphone signal of the audio input / output device output from the transmission terminal Tx of the second most recent apparatus 100 is provided to the receiving terminal Rx4 of the fourth expansion port 4 of the most automatic path switching device. The fourth expansion port port4 is not provided with the last device. In this case, since there is no path for signal switching in the first expansion port port1, the network of the ring structure is broken. Therefore, the microphone signal input to the receiving terminal Rx4 of the fourth expansion port 4 is no longer transmitted.

In the conventional most automatic path switching device 500, when the most recent device is connected to the nth expansion port (when a ring exists between the expansion port and the most recent device), and when the most recent device is not connected (expansion port). In the same state as the broken ring between the device and the most recent device), a path for automatically connecting to the n + 1th expansion port is implemented.

Therefore, in the illustrated embodiment, since the most device is connected to the expansion port 3 and the expansion port 4, the control is performed while the ring is connected. The control is performed while the ring is broken because it is not connected.

As described above, the most automatic path switching device according to the prior art, which has N expansion ports and constitutes a path connected by 2N electronic switches for connecting the N expansion ports, is provided with an input port and amost device. Only then could it form the structure of the ring network.

However, in the related art, when the most apparatus is not connected to the first expansion port port1, the network of the ring structure is broken because there is no connection path considering switching in the first expansion port port1. Therefore, in the related art, when the expansion ports are configured in a line or in four directions, there is a limitation in that an input port configured with the most apparatus is used.

Accordingly, an object of the present invention is to provide a most path extension device for expanding the most path using the expansion port without distinguishing the input port.

Most path expansion device according to the present invention for achieving the above object, three or more N expansion port to connect the two or more Most devices; 2N electrical switches for connecting the expansion ports; N light receiving elements and N light output elements provided in the expansion port; And N inverters for selectively controlling the 2N electrical switches.

In the present invention, the N inverters, including 2N electrical switches, characterized in that it has a three-phase output.

In the present invention, the circuit composed of 3N elements including the N inverters and the 2N electrical switches is replaced by 2N elements including N three-phase output elements and N inversion-controlled three-phase output elements. It is possible.

Hereinafter, the most recent path extension device according to the present invention.

Figure 2 is a control block diagram for the expansion of the most path in accordance with the present invention.

The most recent path expansion device according to the present invention is characterized by having a switching path. That is, the most automatic path switching device 500 shown in the figure is provided with four expansion ports port1, port2, port3, and port4. However, it is possible for the expansion port to have a larger number depending on the embodiment.

The transmitting terminal Tx2 and the receiving terminal Rx2 of the second expansion port port2 are connected to a most network 120 (hereinafter referred to as a 'most ring') 120. Therefore, the transmission terminal Tx2 transmits the signal input to the automatic path switching device 500 to the most ring 120 side. The receiving terminal Rx2 receives a signal provided from the most ring 120. Meanwhile, the transmission terminal Tx2 of the second expansion port port2 is connected to the transmission terminal Tx3 of the third expansion port port3. In addition, the receiving terminal Rx2 of the second expansion port port2 is connected to the transmitting terminal Tx3 of the third expansion port port3. That is, the second expansion port port2 serves to provide a signal provided from the first expansion port port1 to the third expansion port port3.

In the transmission terminal Tx3 of the third expansion port port3, the reception terminal Rx of the firstmost device 110, the transmission and reception terminals Tx2 and Rx2 of the second expansion port port2, and the fourth expansion The transmit terminal Tx4 of the port is connected. The transmitting terminal Tx of the first most recent device 110 and the transmitting terminal Tx4 of the fourth expansion port port4 are connected to the receiving terminal Rx3 of the third expansion port port3. That is, the third expansion port port3 receives a signal from the first most recent device 110 to provide a second expansion port port2, a fourth expansion port port4, and a first expansion port port1. Through the most ring 120 to provide the transmission signal. The third expansion port port3 receives the reception signal from the second expansion port port2 and provides the reception signal to the first most recent device 110 or the fourth expansion port port4.

The transmission and reception terminals Rx3 and Tx3 of the third expansion port port3 are connected to the transmission terminal Tx4 of the fourth expansion port port4. In addition, the transmission terminal Tx4 of the fourth expansion port port4 is connected to the reception terminal Rx of the second most recent device 100 and the transmission terminal Tx1 of the first expansion port port1. The reception terminal Rx4 of the fourth expansion port port4 is connected to the transmission terminal Tx1 of the first expansion port port1 and the transmission terminal Tx of the second most recent device 100.

The optical signal output from the transmitting terminal Tx of the network ring is transmitted to the receiving terminal Rx2 of the second expansion port port2 and converted into an electrical signal. The electrical signal is transmitted to the transmission terminal Tx3 of the third expansion port port3 through the 2A path.

The signal transmitted to the transmitting terminal Tx3 of the third expansion port port3 is converted into an optical signal while being transmitted to the receiving terminal Rx of the first most recent device 110. In addition, an optical signal is transmitted from the transmitting terminal Tx of the firstmost device 110 to the receiving terminal Rx3 of the third expansion port 3 and transmitted to the receiving terminal Rx3 of the third expansion port 3. The converted signal is converted into an electrical signal to the transmission terminal Tx4 of the fourth port port4 and transferred to the 3A path.

The signal transmitted to the transmission terminal Tx4 of the fourth expansion port port4 is converted into an optical signal and transmitted to the reception terminal Rx of the second most recent device 100, and transmitted by the second most recent device 100. It is output again from the terminal Tx to the receiving terminal Rx4. The signal transmitted to the receiving terminal Rx4 of the fourth expansion port port4 is converted into an electrical signal, and the electrical signal is transmitted to the transmitting terminal Tx1 of the first expansion port port1 in the 4A path.

However, since the most recent device is not connected to the first expansion port port1, the optical signal is not received at the receiving terminal Rx of the first expansion port port1. Accordingly, the signal is output by switching to the 1B path at the receiving terminal Rx1 of the first expansion port port1. The output electrical signal is transmitted to the transmission terminal Tx2 of the second expansion port port2 through the path 1B. The signal transmitted to the transmission terminal Tx2 of the second expansion port port2 is converted into an optical signal and transmitted to the reception terminal Rx of the first most ring. As described above, the present invention maintains the structure of the most ring so that data transmission is not interrupted even if the data input ports are not distinguished.

Various types of most recent devices may be connected to the third and fourth expansion ports port3 and port4. As shown in the drawing, the two most device devices are connected to each other, and the first device device 110 is described as a device device having a function of a hands-free device. 100) will be described as a most recent device having a function of an audio input / output device.

Next, look at the operation process of the automatic path switching device for most in accordance with the present invention having the above configuration as an embodiment.

The firstmost device 110 having the function of a hands free device is connected to the third expansion port port3. The second most recent device 100 having a function of an audio input / output device is connected to a fourth expansion port port4. And no first device is connected to the 1st expansion port port1.

In this case, the fourth expansion port port4 selects the 4A path (the path selected when the fourth expansion port has the most device), and the third expansion port 3 selects the 3A path (the most expansion port in the third expansion port). The path selected when the device is present is selected, and the first expansion port port1 selects the path 1B (the path selected when there is no ghost device in the first expansion port).

Therefore, the earphone signal of the mobile phone input from the first most apparatus 110 is output through the second most apparatus 100, and the microphone signal input from the second most apparatus 100 is transmitted to the first most apparatus 110. Path to input is as follows.

The earphone signal of the cellular phone outputted from the transmitting terminal Tx of the firstmost device 110 is provided to the receiving terminal Rx3 of the third expansion port port3 of the most automatic path switching device. In addition, the transmission terminal Tx4 of the fourth expansion port port4 connected to the receiving terminal Rx3 of the third expansion port port3 is transferred to the transmission terminal of the fourth expansion port port4 by the path 3A. It is transmitted to the receiving terminal (Rx) of the second most recent device 100 is connected to (Tx4).

On the contrary, the microphone signal of the audio input / output device output from the transmission terminal Tx of the second most recent device 100 is converted into an optical signal to the receiving terminal Rx4 of the fourth expansion port 4 of the most automatic path switching device. Is provided. The microphone signal input to the receiving terminal Rx4 of the fourth expansion port port4 is transmitted to the transmitting terminal Tx1 of the first expansion port port1 through a path of 4A.

Since the first device is not provided with the first expansion port port1, in the present invention, the path is extended to have a switching path. That is, the microphone signal output from the transmission terminal Tx1 of the first expansion port port1 is transmitted to the transmission terminal Tx2 of the second expansion port port2 through the path 1B. The microphone signal transmitted to the second expansion port port2 is transmitted to the receiving end of the most ring. The signal received from the most strings by the receiving terminal Rx of the most automatic path switching device is transmitted to the transmitting terminal Tx3 of the third expansion port port3. The microphone signal transmitted to the transmission terminal Tx3 of the third expansion port port3 is provided to the reception terminal Rx of the first most recent device 110, thereby being transmitted to the other party's mobile phone.

That is, the most automatic path switching device of the present invention extends the path of the expansion port so that the path is always connected regardless of whether the expansion port and the most connected device are connected so that the most ring is always in the connected state. .

3 is an embodiment of an operation state when a problem occurs in a connector or a release of the most path expansion device according to the present invention.

In the process of transmitting the electrical signal transmitted from the most ring to the transmitting terminal Tx3 of the third expansion port port3 to the receiving terminal Rx of the first mortise apparatus 110, as shown in the drawing, the third expansion. If a problem occurs in the optical cable for transmitting the optical signal between the port por3 and the receiving terminal Rx of the firstmost device 110 or disappears from the network, the operation proceeds as follows.

Since the optical signal cannot be transmitted between the third expansion port por3 and the firstmost device 110, the receiving terminal Rx3 of the third expansion port por3 is transmitted from the transmission terminal Tx of the first most recent device 110. Also, optical signal transmission to) is not possible at the source.

Therefore, in the present invention, the optical signal transmitted from the second expansion port (port2) is transmitted to the transmission terminal (Tx) of the third expansion port (port3), the third expansion port (3) is the path of the electrical signal in the path 3A Control to switch to 3B path.

Therefore, the electrical signal transmitted from the third expansion port por3 to the path 3B is transmitted to the transmission terminal Tx4 of the fourth expansion port por4. The signal output from the transmitting terminal Tx4 of the fourth expansion port por4 is transmitted as an optical signal to the receiving terminal Rx of the second most recent device 100. The optical signal output from the transmitting terminal Tx of the second most recent device 100 is transmitted to the receiving terminal Rx4 of the fourth expansion port port4. The signal output from the receiving terminal Rx4 of the fourth expansion port port4 is transmitted as an electric signal to the transmitting terminal Tx1 of the first expansion port port1. The signal transmitted to the transmission terminal Tx1 of the first expansion port port1 is switched from 1A to 1B so that the ring structure is not broken because the most apparatus is not connected. Accordingly, the signal output from the transmission terminal Tx1 of the first expansion port port1 is transmitted to the second expansion port port2 through the path 1B. The signal transmitted to the second expansion port port2 is transmitted to the most ring.

Thus, in the present invention, by extending the path of the expansion port is not provided with the most device, it is possible to prevent the ring device is broken because the most device is not connected.

In addition, the present invention is to operate the abnormal device, or when a problem occurs in the optical cable for transmitting an optical signal between the expansion port and the most device, by switching the path so that the signal is not broken, is connected to the ring structure to be transmitted. .

)에 연결되어진다. 이때, 스위치의 동작제어는, n확장포트의 수신단자(Rxn)의 상태에 따라서 결정되어진다. 따라서 상기 n확장포트의 수신단자(Rxn)에 반전기가 연결되고, 상기 반전기의 입력신호가 수신단자(Rxn)의 스위치 동작을 제어하고, 상기 반전기의 출력신호가 송신단자(Txn)의 스위치 동작을 제어한다.After the signal transmitted between the expansion port and the last device disappears, the time taken to switch the signal transmission path is logic configuration, so that the delay time is sufficiently short. As shown in Fig. 4, the receiving terminal Rxn of the n expansion port and the transmission terminal Txn of the n expansion port transmit the n + 1 expansion port through respective switch on-off operations connected in series. Terminals(

) Is connected. At this time, the operation control of the switch is determined according to the state of the reception terminal Rxn of the n expansion port. Therefore, an inverter is connected to the receiving terminal Rxn of the n expansion port, an input signal of the inverter controls the switching operation of the receiving terminal Rxn, and an output signal of the inverter is a switch of the transmitting terminal Txn. Control the operation.

Through this configuration, when there is no signal in the receiving terminal Rxn of the n expansion port (when the most device is not connected to the n expansion port, or when the ring is broken), the transmission terminal (Txn) ) Switch is on. Then, the signal of the transmission terminal Txn of the n expansion port is transmitted to the transmission terminal Txn of the n + 1 expansion port.

On the contrary, when there is a signal at the receiving terminal Rxn of the n expansion port, the switch of the receiving terminal Rxn is turned on in a state in which the most devices are connected to the n expansion port (the ring is not disconnected). Then, the signal of the receiving terminal Rxn of the n expansion port is transmitted to the transmitting terminal Txn of the n + 1 expansion port.

That is, as shown in FIGS. 2 and 3, 1A is a switch path selected when the first device is in the first expansion port port1, and 2A is selected when there is a mock device in the second expansion port port2. It is a switch path, 3A is a switch path that is selected when there is a most device in the third expansion port (port3), 4A is a path that is selected when there is a most device in the fourth expansion port (port4). On the contrary, 1B is a switch path selected when there is no ghost device in the first expansion port (port1), 2B is a switch path selected when there is no ghost device in the second expansion port (port2), and 3B is a third expansion port ( The switch path is selected when there is no ghost device in port3), and 4B is the switch path selected when there is no ghost device in the fourth expansion port port4.

The receiving terminal Rx2 of the second expansion port por2 is an optical receiving element that informs the second expansion port port2 of whether or not the most recent device is connected, and the receiving terminal Rx3 of the third expansion port port3. ) Is an optical receiving element that informs the third expansion port port3 of whether or not the most recent device is connected, and the receiving terminal Rx4 of the fourth expansion port port4 is connected to the fourth expansion port port4. It is a device for receiving light that indicates whether or not the connection.

)로 출력되는 신호는, 다음과 같은 전달과정을 가진다. n+1확장포트의 수신단자(

)에 신호가 없는 상태일 때(상기 n+1포트에 모스트장치가 연결되지 않은 상태, 링이 끊어진 현상과 같은 상태일 때), 송신단자(

)의 스위치가 온 동작되어진다. 그러면 n+1포트의 송신단자(

)의 신호가 n+2포트의 송신단자(

)에 전달되어진다.Receiving terminal of the n + 1 expansion port (

The signal output as) has the following transmission process. Receive terminal of n + 1 expansion port

) When there is no signal (when the device is not connected to the n + 1 port or when the ring is broken), the transmission terminal (

) Switch is on. Then, send terminal of n + 1 port (

Signal from the n + 2 port

Is delivered.

)에 신호가 있는 상태일 때, 상기 n+1포트에 모스트장치가 연결된 상태(링이 끊어지지 않은 상태)에서 수신단자(

)의 스 위치가 온 동작되어진다. 그러면 n+1포트의 수신단자(

)의 신호가 n+2포트의 송신단자(

)에 전달되어진다.In contrast, the receiving terminal of the n + 1 port (

), When the signal is connected to the n + 1 port, the receiving terminal (with the ring disconnected)

Switch is on. Then, the receiving terminal of n + 1 port (

Signal from the n + 2 port

Is delivered.

5 has the same operation control procedure as that of FIG. However, in the embodiment of Fig. 5, according to the state of the receiving terminal of the expansion port, in order to receive the signals of the transmitting terminal and the receiving terminal, respectively, N inverters including a 2N switch and having a three-phase output are provided. It is composed.

As described above, the present invention is configured to be able to maintain the most path for any expansion port input, and undergoes the path switching process of the expansion port.

Therefore, in the present invention, it is a basic technical idea to extend the most path of an arbitrary expansion port and to transmit / receive data while always forming a ring structure regardless of whether or not the most recent device is connected.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

Therefore, the following effects can be expected due to the most path expansion device according to the present invention.

In the present invention, by extending the path of the expansion port which is not provided with the last device, and always forming a ring structure regardless of whether the most recent device is connected, it becomes impossible to disconnect the data transmission / reception path.

In addition, the present invention is to operate the abnormal device, or when a problem occurs in the optical cable for transmitting the optical signal between the expansion port and the most device, by switching the path so that the signal is not disconnected to be transmitted in a ring structure .

Claims (2)

To connect two or more Most devices, Three or more N expansion ports; 2N electrical switches for connecting the expansion ports; N light receiving elements and N light output elements provided in the expansion port; And a plurality of N inverters for selectively controlling the 2N electrical switches. The method of claim 1, Configuring an optional switch circuit including 3N units including the 2N electrical switches and the N inverters, And the selective switch circuit comprises 2N including N three-phase output elements and N inversion controlled three-phase output elements.

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