Remote communication device based on automatic link establishment

Abstract

The utility model discloses a remote transmission communication device based on automatic link establishment, which comprises a remote transmission transceiving module, a surge protection network, a link monitoring module and a control module, and is characterized in that the link monitoring module and the remote transmission transceiving module are electrically connected with the control module; the surge protection network and the link monitoring module are electrically connected with the remote transmitting and receiving module, the surge protection network is electrically connected with a covered wire, and the remote transmitting and receiving module is electrically connected with an upper computer. According to the utility model, after the covered wire is connected with the remote transmitting and receiving module at the far end, the control module detects the link synchronization state, and performs master-slave mode switching according to the link state to realize automatic link establishment, thereby realizing remote transmission of data at two ends.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, specifically to a remote communication device based on automatic link establishment. Background Technology

[0002] Covered-line communication is a technology that utilizes existing power lines for information transmission. The signals are transmitted over the power lines via electromagnetic fields. During operation, the covered-line long-distance transmission equipment modulates the data signals to be transmitted onto a frequency suitable for transmission over the covered line. At the receiving end, these signals are demodulated back to their original data form. This process may include signal amplification, equalization, and error correction to ensure sufficient quality and integrity of the signal after long-distance transmission. Covered-line long-distance communication combines the stability of traditional wired communication with the efficiency of modern digital signal processing technology, enabling the rapid establishment of reliable communication links in field or temporary deployment conditions, meeting the flexible and efficient communication needs of military, emergency response, or temporary event management.

[0003] Existing remote communication modules require both parties to set up master and slave modes, i.e., one end is in master mode and the other end is in slave mode, before a connection can be established and normal data transmission can begin. This requires both parties to agree on the connection in advance through other communication methods such as ultra-shortwave. In actual communication, it cannot meet the need for on-demand connection. In particular, when remote communication is used as a backup communication method, it will greatly limit its business development.

[0004] To address the aforementioned issues, it is necessary to provide a remote communication device based on automatic link establishment. Utility Model Content

[0005] The purpose of this invention is to provide a remote communication device based on automatic link establishment, overcoming the aforementioned defects in the prior art.

[0006] The technical solution to achieve the purpose of this utility model is: a remote communication device based on automatic link establishment, including a remote transceiver module, a surge protection network, a link monitoring module, and a control module. The link monitoring module and the remote transceiver module are electrically connected to the control module. The surge protection network and the link monitoring module are electrically connected to the remote transceiver module. The surge protection network is electrically connected to the covered line. The remote transceiver module is electrically connected to the host computer. After connecting to the remote transceiver module at the far end through the covered line, the control module detects the link synchronization status and switches between master and slave modes according to the link status to achieve automatic link establishment and realize remote data transmission between the two ends.

[0007] In a preferred embodiment, the remote transceiver module includes a main transceiver, a first filter matching network, and a line transformer. The control module and the first filter matching network are electrically connected to the main transceiver. The first filter matching network and the link monitoring module are electrically connected to the line transformer. The main transceiver is electrically connected to a host computer, and the line transformer is electrically connected to the surge protection network.

[0008] In a preferred embodiment, the link monitoring module includes a coupling network, a second filter matching network, and a slave transceiver. The second filter matching network and the line transformer are electrically connected to the coupling network, and the second filter matching network and the control module are electrically connected to the slave transceiver.

[0009] In a preferred embodiment, the control module includes an MCU chip, a MODEM control circuit, and a data channel control circuit. The MCU chip is electrically connected to the MODEM control circuit and the data channel control circuit, respectively. The MCU chip is electrically connected to the slave transceiver, and the MODEM control circuit and the data channel control circuit are electrically connected to the master transceiver, respectively.

[0010] In a preferred embodiment, the main transceiver includes a digital network interface chip, a clock system, and an RS232 interface level conversion module. The digital network interface chip is electrically connected to the clock system and the RS232 interface level conversion module, respectively. The digital network interface chip is also electrically connected to the filter matching network and the MODEM control circuit, respectively. The data channel control circuit is electrically connected to the RS232 interface level conversion module and the host computer, respectively.

[0011] In a preferred embodiment, the transceiver includes an electrically connected CPLD chip and an A / D converter, the CPLD chip being electrically connected to the MCU chip, and the A / D converter being electrically connected to the second filter matching network.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects:

[0013] (1) Based on the traditional data remote transmission and reception module, this utility model adds a link monitoring module and a control module. After the line is connected, the device detects the master-slave mode of the two communicating parties and switches the mode according to the link status to achieve automatic link establishment, improve communication efficiency and simplify operation.

[0014] (2) The remote transceiver module of this utility model is mainly composed of a line transformer, a filter matching network and a main transceiver. After being connected to the remote transceiver module at the far end through the covered line, a line connection is established, and the analog transmission signal on the line is converted into the digital signal of the local host computer, so as to realize the remote transmission of data between the two ends.

[0015] (3) This utility model is composed of a single-chip microcomputer system through a control module to realize data frame synchronization detection, master-slave mode control and master transceiver data interface control. That is, the data output by the link detection module is processed for synchronization detection. When it is determined that the current link is out of sync, the mode of the master-slave transceiver in the device is switched to realize automatic link establishment. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0017] Figure 1 This is a device connection diagram for a remote communication device based on automatic link establishment.

[0018] Figure 2 This is a functional block diagram of the control module.

[0019] Figure 3 This is the circuit diagram for the control module.

[0020] Figure 4 Functional block diagram of the main transceiver.

[0021] Figure 5 The main transceiver circuit diagram.

[0022] Figure 6 This is a functional block diagram of the transceiver.

[0023] Figure 7 This is a circuit diagram of a transceiver.

[0024] The labels in the attached diagram are as follows: 1. Remote transceiver module; 11. Master transceiver; 11-1. Digital network interface chip; 11-2. Clock system; 11-3. RS232 interface level conversion module; 12. First filter matching network; 13. Line transformer; 2. Surge protection network; 3. Link monitoring module; 31. Coupling network; 32. Second filter matching network; 33. Slave transceiver; 33-1. CPLD chip; 33-2. A / D converter; 4. Control module; 41. MCU chip; 42. MODEM control circuit; 43. Data channel control circuit. Detailed Implementation

[0025] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model. Example

[0031] See Figures 1 to 7The remote communication device based on automatic link establishment includes a remote transceiver module 1, a surge protection network 2, a link monitoring module 3, and a control module 4. The remote transceiver module 1 includes a master transceiver 11, a first filter matching network 12, and a line transformer 13. The link monitoring module 3 includes a coupling network 31, a second filter matching network 32, and a slave transceiver 33. The control module 4 and the first filter matching network 12 are electrically connected to the master transceiver 11. The first filter matching network 12 and the coupling network 31 are electrically connected to the line transformer. The master transceiver 11 is electrically connected to a host computer. The line transformer 13 is electrically connected to the surge protection network 2. The second filter matching network 32 and the line transformer 13 are electrically connected to the coupling network 31. The second filter matching network 31 and the control module 4 are electrically connected to the slave transceiver 33. The surge protection network 2 is electrically connected to the covered line.

[0032] The remote transceiver module 1 mainly consists of a main transceiver 11, a first filtering and matching network 12, and a line transformer 13. The main transceiver 11 processes the conversion of digital or analog signals, converting them into a format suitable for transmission, and then sends them to the transmission line through the first filtering and matching network 12 and the line transformer 13. During reception, this process is reversed, decoding the received signal to restore the original data. The first filtering and matching network 12, located between the main transceiver 11 and the line transformer 13, ensures signal purity and improves signal integrity. The line transformer 13 reduces ground loop interference, improves system stability, and matches different impedances to minimize power loss during signal transmission and protects the main transceiver from high-voltage surges.

[0033] The link monitoring module 3 includes a coupling network 31, a second filtering and matching network 32, and a slave transceiver 33. After the line is connected, the link monitoring module 3 only receives signals and does not transmit. It converts the analog signals on the line into data frames and outputs them. The coupling network 31 receives signals from the line transformer 13 and injects the signals into the transmission line while minimizing interference to the original signal source or transmission line. The second filtering and matching network 32 filters out unwanted frequency components, such as noise and interference, especially high-frequency interference and out-of-band signals, to improve the purity of the signal. The slave transceiver 33 receives and processes the signals processed by the coupling network 31 and the second filtering and matching network 32 to ensure that the signals are received and decoded in the best condition, and then outputs the signals to the control module 4 for processing.

[0034] The control module 4 consists of a microcontroller system, including an MCU chip 41, a MODEM control circuit 42, and a data channel control circuit 43. The MCU chip 41 is electrically connected to both the MODEM control circuit 42 and the data channel control circuit 43. The main transceiver 11 includes a digital network interface chip 11-1, a clock system 11-2, and an RS232 interface level conversion module 11-3. The digital network interface chip 11-1 is electrically connected to both the clock system 11-2 and the RS232 interface level conversion module 11-3. The digital network interface chip 11-1 is also electrically connected to the first filter matching network 12 and the MODEM control circuit 42. The data channel control circuit 43 is electrically connected to both the RS232 interface level conversion module 11-3 and the host computer. The slave transceiver 33 includes a CPLD chip 33-1 and an A / D converter 33-2 that are electrically connected. The CPLD chip 33-1 is electrically connected to the MCU chip 41, and the A / D converter 33-2 is electrically connected to the second filter matching network 32.

[0035] Control module 4 implements data frame synchronization detection, master-slave mode control, and data interface control of the master transceiver. Specifically, it performs synchronization detection on the data output by the link detection module, and if the current link is out of sync, it switches the master-slave working mode of the master-slave transceiver in the device. After the local and remote links are established, the data path between this device and the host computer switches from the default closed state to the open state, ultimately achieving data interoperability between the local and remote terminals. Remote transceiver module 1 establishes a line connection after connecting to the remote remote transceiver module 1 via a covered cable.

[0036] The specific business process is as follows:

[0037] (1) After the two ends of the remote transmission are connected, the control module detects the link synchronization status;

[0038] (2) When the two communicating parties are in a master-slave mode mismatch (two masters or two slaves), the control module detects that the link is out of sync;

[0039] (3) The control module switches the working mode of the master and slave transceivers, and the two communicating parties enter the master and slave mode matching state. The link is detected to enter the synchronization state.

[0040] (4) The control module opens the data communication interface of the main transceiver, and the link is established at both ends.

[0041] After the communication device is connected to the remote transceiver module at the far end via the covered wire, the control module detects the link synchronization status and switches between master and slave modes according to the link status to achieve automatic link establishment and realize remote data transmission between the two ends.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A long-distance communication device based on automatic link establishment, characterized in that: The system includes a remote transceiver module (1), a surge protection network (2), a link monitoring module (3), and a control module (4). The link monitoring module (3) and the remote transceiver module (1) are electrically connected to the control module (4). The surge protection network (2) and the link monitoring module (3) are electrically connected to the remote transceiver module (1). The surge protection network (2) is electrically connected to the covered line. The remote transceiver module (1) is electrically connected to the host computer. After the remote transceiver module (1) is connected to the remote end through the covered line, the control module (4) detects the link synchronization status and switches between master and slave modes according to the link status to achieve automatic link establishment and realize remote data transmission between the two ends.

2. The long-distance communication device based on automatic link establishment according to claim 1, characterized in that: The remote transceiver module (1) includes a main transceiver (11), a first filter matching network (12), and a line transformer (13). The control module (4) and the first filter matching network (12) are electrically connected to the main transceiver (11). The first filter matching network (12) and the link monitoring module (3) are electrically connected to the line transformer (13). The main transceiver (11) is electrically connected to the host computer. The line transformer (13) is electrically connected to the surge protection network (2).

3. The long-distance communication device based on automatic link establishment according to claim 2, characterized in that: The link monitoring module (3) includes a coupling network (31), a second filter matching network (32), and a slave transceiver (33). The second filter matching network (32) and the line transformer (13) are electrically connected to the coupling network (31), and the second filter matching network (32) and the control module (4) are electrically connected to the slave transceiver (33).

4. The long-distance communication device based on automatic link establishment according to claim 3, characterized in that: The control module (4) includes an MCU chip (41), a MODEM control circuit (42), and a data channel control circuit (43). The MCU chip (41) is electrically connected to the MODEM control circuit (42) and the data channel control circuit (43), respectively. The MCU chip (41) is electrically connected to the slave transceiver (33), and the MODEM control circuit (42) and the data channel control circuit (43) are electrically connected to the master transceiver (11), respectively.

5. The long-distance communication device based on automatic link establishment according to claim 4, characterized in that: The main transceiver (11) includes a digital network interface chip (11-1), a clock system (11-2), and an RS232 interface level conversion module (11-3). The digital network interface chip (11-1) is electrically connected to the clock system (11-2) and the RS232 interface level conversion module (11-3), respectively. The digital network interface chip (11-1) is electrically connected to the first filter matching network (12) and the MODEM control circuit (42), respectively. The data channel control circuit (43) is electrically connected to the RS232 interface level conversion module (11-3) and the host computer, respectively.

6. The long-distance communication device based on automatic link establishment according to claim 5, characterized in that: The transceiver (33) includes an electrically connected CPLD chip (33-1) and an A / D converter (33-2), the CPLD chip (33-1) being electrically connected to the MCU chip (41), and the A / D converter (33-2) being electrically connected to the second filter matching network (32).

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