Novel serial port one-to-two connecting device

Abstract

The invention provides a novel serial port one-to-two connecting device, and belongs to the technical field of optical fiber communication and serial communication. The device comprises a communication manager communication port, a terminal strip I, a diode, a terminal strip II, a first-path optical fiber transceiver I, a first-path optical fiber transceiver II, a second-path optical fiber transceiver I, a second-path optical fiber transceiver II, an optical cable, a network cable, a data acquisition terminal I and a data acquisition terminal II. The device provided by the invention solves the problem that a communication system needs one communication port to communicate with two terminals at the same time. And the problems of signal false alarm, misoperation and the like caused by high error rate due to increase of communication equipment cost and poor transmission data quality are avoided.

Description

Technical Field

[0001] The present invention relates to the technical fields of optical fiber communication and serial communication. Specifically, it particularly relates to a new type of serial port one-to-two connection device. Background Art

[0002] As Figure 1 shown, RS-232 is one of the current mainstream serial communication interfaces. Since the RS232 interface standard emerged relatively early, it inevitably has some deficiencies: 1. The signal level value of the interface is relatively high (the signal "1" is "-3V to -15V", and the signal "0" is "3 to 15V"), which is likely to damage the chips of the interface circuit and has poor anti-interference ability. 2. The transmission distance of RS232 is limited, and the standard maximum transmission distance is 15 meters. 3. The RS232 interface only allows one communication terminal to be connected to the bus and does not support multi-station transceiver capabilities, so it can only perform point-to-point communication and does not support multi-point communication. Since 2001, Ansteel's power grid has carried out the transformation work of power system comprehensive automation. Due to the underdeveloped communication technology at that time, the communication between substations and centralized control master stations mostly adopted a combination of serial RS232 interfaces and optical fiber communication. With the development of communication technology and the transformation of centralized control stations, this communication method cannot achieve the communication method of a substation communicating with two dispatching master stations simultaneously during a specific period, and cannot achieve multi-point communication of RS232.

[0003] After analysis and research, the following problems exist:

[0004] 1. When there are two dispatching master stations, the RS232 serial method cannot simultaneously send and receive data with the two master stations.

[0005] 2. If two terminals communicate simultaneously, there will be a problem of potential difference, which may cause the communication port to burn out.

[0006] 3. There is a situation of mutual communication interference, which affects the communication transmission quality and results in an excessive error rate. Summary of the Invention

[0007] In view of the technical problems mentioned in the above background art, a new type of serial port one-to-two connection device is provided.

[0008] The technical means adopted by the present invention are as follows:

[0009] A new type of serial port one-to-two connection device includes:

[0010] A communication management machine communication port, a terminal block I, a diode, a terminal block II, a first optical fiber transceiver I, a first optical fiber transceiver II, a second optical fiber transceiver I, a second optical fiber transceiver II, an optical cable, a network cable, a data acquisition terminal I, and a data acquisition terminal II;

[0011] The RX, TX, and GND terminals of the communication port of the communication management machine are connected to the RX, TX, and GND terminal blocks of terminal block I through a serial cable; the RX terminal block of terminal block I is connected to the cathode of the diode, and the TX terminal block of terminal block I is respectively connected to the anode of the diode; the anode of the diode is also connected to the TX and TX terminals of terminal block II;

[0012] The GND terminal of terminal block I is connected to the GND terminal of terminal block II; the TX terminal of terminal block I is connected to the TX terminal of the first fiber optic transceiver I; the TX terminal of terminal block II is connected to the TX terminal of the second fiber optic transceiver I; the RX terminal of terminal block II is connected to the RX terminal of the first fiber optic transceiver I; the RX terminal of terminal block II is connected to the RX terminal of the second fiber optic transceiver I; the GND terminal of terminal block II is connected to the GND terminals of the first fiber optic transceiver I and the second fiber optic transceiver I.

[0013] Further, the first fiber optic transceiver I, the first fiber optic transceiver II, the second fiber optic transceiver I, and the second fiber optic transceiver II are connected to the fiber optic transceivers on the opposite side through the optical cable.

[0014] Further, the device also has: a serial port server I; the serial port server I is connected to the data acquisition terminal I through a network cable.

[0015] Further, the device also has: a serial port server II; the serial port server II is connected to the data acquisition terminal II through a network cable.

[0016] Further, the diode is provided with a number.

[0017] Further, the RX, TX, and GND terminals of the first fiber optic transceiver II are respectively connected to the RX, TX, and GND terminals of the serial port server I.

[0018] Further, the RX, TX, and GND terminals of the second fiber optic transceiver II are respectively connected to the RX, TX, and GND terminals of the serial port server II.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The method of the present invention solves the problem that a communication port is required to communicate with two terminals simultaneously in a communication system. It avoids problems such as increasing the cost of communication equipment, high error rate caused by poor transmission data quality resulting in signal false alarms and misoperations. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a serial port communication wiring diagram in the prior art.

[0023] Figure 2 It is the serial port communication wiring diagram of the present invention.

[0024] In the figure: 1. Communication port of the communication management machine; 2. Terminal block I; 3. Diode; 4. Terminal block II; 5-1. First fiber optic transceiver I; 5-2. First fiber optic transceiver II; 6-1. Second fiber optic transceiver I; 6-2. Second fiber optic transceiver II; 7. Optical cable; 8. Serial port server I; 9. Serial port server II; 10. Network cable; 11. Data acquisition terminal I; 12. Data acquisition terminal II. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order different from those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0027] Such as Figure 2As shown in the figure, the present invention provides a new type of serial port one-to-two connection device, including: communication management machine communication port 1, terminal block I 2, diode 3, terminal block II 4, first optical fiber transceiver I 5-1, first optical fiber transceiver II 5-2, second optical fiber transceiver I 6-1, second optical fiber transceiver II 6-2, optical cable 7, serial port server I 8, serial port server II 9, network cable 10, data acquisition terminal I 11, and data acquisition terminal II 12.

[0028] The RX end, TX end, and GND end of the communication management machine communication port 1 are connected to the RX end, TX end, and GND end terminal blocks of the terminal block I 2 through a serial cable; the RX terminal of the terminal block I 2 is connected to the cathode of the diode 3, and the TX terminal of the terminal block I 2 is respectively connected to the anode of the diode 3; the anode of the diode 3 is also connected to the TX1 end and TX2 end of the terminal block II 4, thus realizing the one-to-two function of data transmission.

[0029] The GND end of the terminal block I 2 is connected to the GND end of the terminal block II 4; the TX1 end of the terminal block I 2 is connected to the TX1 end of the first optical fiber transceiver 5-1; the TX2 end of the terminal block II 4 is connected to the TX2 terminal of the second optical fiber transceiver I 6-1; the RX1 end of the terminal block II 4 is connected to the RX1 end of the first optical fiber transceiver I 5-1; the RX2 end of the terminal block II 4 is connected to the RX2 end of the second optical fiber transceiver I 6-1; the GND end of the terminal block II 4 is connected to the GND1 end of the first optical fiber transceiver I 5-1 and the GND2 end of the second optical fiber transceiver I 6-1. Utilizing the unidirectional conductivity of the diode to achieve non-interference of signals, and using the optical fiber transceiver to achieve optoelectronic isolation to solve the problem of port burnout caused by different potential differences between the two acquisition terminals. It can convert one RS232 signal into two signals, and can simultaneously receive and send data, solving the needs in actual projects.

[0030] As a preferred embodiment, in the present application, the first optical fiber transceiver I 5-1, the first optical fiber transceiver II 5-2, the second optical fiber transceiver I 6-1, and the second optical fiber transceiver II 6-2 are connected to the optical fiber transceivers on the opposite side through the optical cable 7 to achieve optoelectronic isolation.

[0031] Preferably, the device also has: serial port server I 8; the serial port server I 8 is connected to the data acquisition terminal I 11 through the network cable 10.

[0032] In this embodiment, the device also has: serial port server II 9; the serial port server II 9 is connected to the data acquisition terminal II 12 through the network cable 10.

[0033] In this application, 4 diodes 3 are provided. It can be understood that in other embodiments, the set quantity is determined according to the actual situation.

[0034] In this embodiment, the RX1 terminal, TX1 terminal, and GND1 terminal of the first optical fiber transceiver II5-2 are respectively connected to the RX1 terminal, TX1 terminal, and GND1 terminal of the serial port server I8.

[0035] In this embodiment, the RX2 terminal, TX2 terminal, and GND2 terminal of the second optical fiber transceiver II6-2 are respectively connected to the RX2 terminal, TX2 terminal, and GND2 terminal of the serial port server II9.

[0036] This application solves the problem that a communication port in a communication system needs to communicate with two terminals simultaneously. It avoids problems such as increasing the cost of communication equipment, high bit error rate caused by poor transmission data quality resulting in signal false alarms and misoperations.

[0037] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0038] In the above embodiments of the present invention, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0039] In the several embodiments provided by this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only illustrative. For example, the division of the units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0040] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0041] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0042] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage medium includes: various media that can store program codes, such as USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs.

[0043] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of serial port one-to-two connection device, characterized in that, Including: Communication management machine communication port (1), terminal block I (2), diode (3), terminal block II (4), first optical fiber transceiver I (5-1), first optical fiber transceiver II (5-2), second optical fiber transceiver I (6-1), second optical fiber transceiver II (6-2), optical cable (7), network cable (10), data acquisition terminal I (11), and data acquisition terminal II (12); The RX, TX, and GND terminals of the communication management machine communication port (1) are connected to the RX, TX, and GND terminal blocks of the terminal block I (2) through a serial cable; the RX terminal of the terminal block I (2) is connected to the cathode of the diode (3), and the TX terminal of the terminal block I (2) is respectively connected to the anode of the diode (3); the anode of the diode (3) is also connected to the TX1 and TX2 terminals of the terminal block II (4); The GND terminal of the terminal block I (2) is connected to the GND terminal of the terminal block II (4); the TX1 terminal of the terminal block I (2) is connected to the TX1 terminal of the first optical fiber transceiver I (5-1); the TX2 terminal of the terminal block II (4) is connected to the TX2 terminal of the second optical fiber transceiver I (6-1); the RX1 terminal of the terminal block II (4) is connected to the RX1 terminal of the first optical fiber transceiver I (5-1); the RX2 terminal of the terminal block II (4) is connected to the RX2 terminal of the second optical fiber transceiver I (6-1); the GND terminal of the terminal block II (4) is connected to the GND1 terminal of the first optical fiber transceiver I (5-1) and the GND2 terminal of the second optical fiber transceiver I (6-1).

2. The novel serial port one-to-two connection device according to claim 1, wherein The first optical fiber transceiver I (5-1), first optical fiber transceiver II (5-2), second optical fiber transceiver I (6-1), and second optical fiber transceiver II (6-2) are connected to the optical fiber transceivers on the opposite side through the optical cable (7) to achieve optoelectronic isolation.

3. A novel serial port one-to-two connection device according to claim 1, characterized in that, The device further has: serial port server I (8); the serial port server I (8) is connected to the data acquisition terminal I (11) through the network cable (10).

4. A novel serial port one-to-two connection device according to claim 1, characterized in that, The device further has: serial port server II (9); the serial port server II (9) is connected to the data acquisition terminal II (12) through the network cable (10).

5. A novel serial port one-to-two connection device according to claim 1, characterized in that, There are 4 diodes (3) provided.

6. A novel serial port one-to-two connection device according to claim 1, characterized in that, The RX1, TX1, and GND1 terminals of the first optical fiber transceiver II (5-2) are respectively connected to the RX1, TX1, and GND1 terminals of the serial port server I (8).

7. A novel serial port one-to-two connection device according to claim 1, characterized in that, The RX2, TX2, and GND2 terminals of the second optical fiber transceiver II (6-2) are respectively connected to the RX2, TX2, and GND2 terminals of the serial port server II (9).

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