Power line-ethernet hybrid injector and repeater communicatively connected thereto

Abstract

A power line-Ethernet hybrid injector is provided. The power line-Ethernet hybrid injector comprises: a first power line and a second power line for respectively transmitting power of opposing polarities; a plurality of branch lines each branched from the first power line or the second power line; first communication lines which transmit communication data, and which are provided in the number corresponding to the plurality of branch lines; a first low-pass filter which allows the power to pass therethrough and which blocks the communication data; a first high-pass filter which blocks the power and which allows the communication data to pass therethrough; and a plurality of Ethernet power line communication lines for transmitting power / communication data in which the power having passed through the first low-pass filter and the communication data having passed through the first high-pass filter are combined with each other.

Description

Powerline-Ethernet hybrid injector and repeater connected thereto

[0001] The present invention relates to a power line-Ethernet hybrid injector and a repeater connected to the same, and more particularly, to a power line-Ethernet hybrid injector capable of high-power transmission as well as high-speed communication, and a repeater connected to the same.

[0002] Our society requires increasingly more information, and we are now entering an era of AI that automatically finds the information we need. Consequently, the amount of information required is also increasing.

[0003] At this time, this information is transmitted via wired or wireless communication.

[0004] While wireless communication offers the convenience of transmitting data through the air without wires, it also presents the challenge of transmitting information over long distances, and even when transmitted over long distances, transmission speeds can be slow. Furthermore, wireless communication quality can vary depending on weather conditions, and obstacles along the transmission path can render communication impossible.

[0005] While wired communication offers the advantage of faster communication speeds compared to wireless communication, it creates a complex communication environment due to the numerous wires involved. Therefore, to address this issue, technologies that transmit both communication and power over a single wire are being commercialized.

[0006] Representative technologies include power line communication (PLC) and Power over Ethernet (PoE).

[0007] The aforementioned power line communication technology, which transmits data over two wires, offers the advantage of transmitting large amounts of power, but suffers from the limitation of low-speed communication. Specifically, the aforementioned power line communication is transmitted as a two-wire system and then converted to an Ethernet communication system, which can generate heat.

[0008] Currently, two-wire communication has advanced significantly, leading to gigabit-speed solutions. However, they are expensive and take up a lot of space when converted to Ethernet. Furthermore, powerline communication suffers from the problem of reduced communication speeds as distance increases, resulting in uneven communication quality.

[0009] The above PoE offers fast communication speeds, but has limitations in low-power transmission. Furthermore, since PoE uses DC 50V to 57V power when transmitting high power, the larger the power transmitted, the larger the AC (100V to 240V) / DC (50V to 57V) converter becomes, leading to increased costs.

[0010] Therefore, there is a need for the development of a power / communication data transmission technology that combines the high-power transmission technology, which is an advantage of power line communication, with the high-speed communication technology, which is an advantage of PoE.

[0011] The technical problem to be solved by the present invention is to provide a power line-Ethernet hybrid injector capable of high-power transmission as well as high-speed communication, and a repeater connected to the power line-Ethernet hybrid injector.

[0012] Another technical problem to be solved by the present invention is to provide a power line-Ethernet hybrid injector and a repeater connected to the same, which can prevent heat generation issues in advance.

[0013] Another technical problem to be solved by the present invention is to provide a power line-Ethernet hybrid injector and a repeater connected to the same, which can minimize installation space.

[0014] The technical problems to be solved by the present invention are not limited to those described above.

[0015] To solve the above technical problem, the present invention provides a power line-Ethernet hybrid injector.

[0016] According to an embodiment, the power line-Ethernet hybrid injector may include a first power line and a second power line each transmitting power of opposite polarities; a plurality of branch lines each branching from the first power line and the second power line; a first communication line transmitting communication data and having a number corresponding to the plurality of branch lines; a first low-pass filter passing the power and blocking the communication data; a first high-pass filter blocking the power and passing the communication data; and a plurality of Ethernet power line communication lines transmitting power / communication data that is a combination of power passing through the first low-pass filter and communication data passing through the first high-pass filter.

[0017] According to an embodiment, the plurality of branch lines and the first communication line are connected in a one-to-one correspondence with each other, the first low-frequency pass filter is installed on one longitudinal side of each of the plurality of branch lines, but is installed upstream from a portion where the branch lines and the first communication line are connected, and the first high-frequency pass filter can be installed on one longitudinal side of each of the first communication lines.

[0018] According to an embodiment, the first low-frequency pass filter is installed at one end of the length direction of the first power line and the second power line, respectively, and the branch lines branch from the first power line and the second power line to both sides of the length direction of the first low-frequency pass filter, respectively, and the first high-frequency pass filter can be installed between a branch line branched from the first power line and the first communication line and between a branch line branched from the second power line and the first communication line, respectively, and the first high-frequency pass filter can be formed of a coil connected to the first communication line and the first low-frequency pass filter that generates electromotive force by the first communication line.

[0019] According to an embodiment, when the power transmitted through the first power line and the second power line is AC power, a diode for converting the AC power into DC power may be further included before branching into the plurality of branch lines.

[0020] Meanwhile, the present invention provides a repeater.

[0021] According to an embodiment, the repeater may include: a second communication line that is communicatively connected to the power line-Ethernet hybrid injector and is provided in a number corresponding to the plurality of Ethernet power line communication lines, and receives only communication data from among power / communication data transmitted through the Ethernet power line communication lines; a third power line and a fourth power line that are connected to the plurality of Ethernet power line communication lines and receive only power from among the power / communication data transmitted through the Ethernet power line communication lines; a second low-pass filter that passes power from among the power / communication data and provides it to the third and fourth power lines while blocking communication data; and a second high-pass filter that blocks power from among the power / communication data and passes communication data and provides it to the second communication line.

[0022] According to an embodiment of the present invention, a first power line and a second power line each transmitting power having opposite polarities; a plurality of branch lines each branching from the first power line and the second power line; a first communication line transmitting communication data and having a number corresponding to the plurality of branch lines; a first low-pass filter passing the power and blocking the communication data; a first high-pass filter blocking the power and passing the communication data; and a plurality of Ethernet power line communication lines transmitting power / communication data in which the power passing through the first low-pass filter and the communication data passing through the first high-pass filter are combined.

[0023] Accordingly, a power line-Ethernet hybrid injector capable of high-power transmission as well as high-speed communication and a repeater connected thereto can be provided, through which uniformity of communication quality can be secured.

[0024] In addition, according to an embodiment of the present invention, since there is no need to convert from a power line communication to an Ethernet communication system, the heat generation issue that occurs in the process of converting a communication system from a conventional power line communication to an Ethernet communication can be prevented in advance.

[0025] And according to an embodiment of the present invention, by providing a power line-Ethernet hybrid injector and a repeater connected to the power line communication system without the need to convert from a power line communication system to an Ethernet communication system, the installation space for a power / communication data transmission system can be minimized.

[0026] In addition, according to an embodiment of the present invention, AC power can be used as is, and accordingly, an AC / DC converter is not required when supplying power in an existing PoE system, thereby reducing costs, and a much higher power than a PoE (Power over Ethernet) system can be combined with communication data for transmission.

[0027] FIG. 1 is a conceptual diagram illustrating a power line-Ethernet hybrid injector according to a first embodiment of the present invention.

[0028] FIG. 2 is a schematic diagram illustrating a power line-Ethernet hybrid injector according to a first embodiment of the present invention.

[0029] FIG. 3 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a first embodiment of the present invention.

[0030] FIG. 4 is a circuit diagram for explaining a power conversion method of a power line-Ethernet hybrid injector according to a first embodiment of the present invention.

[0031] FIG. 5 is a schematic diagram illustrating a repeater that is connected to a power line-Ethernet hybrid injector according to a first embodiment of the present invention.

[0032] FIG. 6 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a second embodiment of the present invention.

[0033] FIG. 7 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a third embodiment of the present invention.

[0034] FIG. 8 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a fourth embodiment of the present invention.

[0035] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical concept of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete and to sufficiently convey the spirit of the present invention to those skilled in the art.

[0036] In this specification, when a component is referred to as being on another component, it means that it can be formed directly on the other component, or a third component may be interposed between them. Furthermore, in the drawings, shapes and sizes are exaggerated for the purpose of effectively explaining the technical contents.

[0037] Also, although terms such as first, second, and third have been used to describe various components in various embodiments of this specification, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiments. Also, the term "and / or" has been used herein to mean including at least one of the components listed before and after.

[0038] In the specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to specify the presence of a feature, number, step, component, or combination thereof described in the specification, and should not be construed as excluding the presence or addition of one or more other features, numbers, steps, components, or combinations thereof. In addition, the term "connection" is used in the present specification to mean both indirectly connecting multiple components and directly connecting them.

[0039] In addition, when describing the present invention below, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0040]

[0041] FIG. 1 is a conceptual diagram for explaining a power line-to-Ethernet hybrid injector according to a first embodiment of the present invention, FIG. 2 is a configuration diagram for explaining a power line-to-Ethernet hybrid injector according to a first embodiment of the present invention, FIG. 3 is a circuit diagram for explaining a transmission method of a power line-to-Ethernet hybrid injector according to a first embodiment of the present invention, FIG. 4 is a circuit diagram for explaining a power conversion method of a power line-to-Ethernet hybrid injector according to a first embodiment of the present invention, and FIG. 5 is a configuration diagram for explaining a repeater that is communicatively connected to a power line-to-Ethernet hybrid injector according to a first embodiment of the present invention.

[0042]

[0043] As illustrated in FIG. 1, a power line-Ethernet hybrid injector (100) according to a first embodiment of the present invention can combine input power (P) and communication data (C), and provide the combined power / communication data (P+C) to a repeater (500) that is serially connected thereto.

[0044] At this time, the repeater (500) can output the provided power / communication data (P+C) to an IoT device connected thereto or another neighboring repeater (500).

[0045] For example, a first repeater (500) adjacent to a powerline-Ethernet hybrid injector (100) according to a first embodiment of the present invention may provide a portion of the power / communication data (P+C) received from the powerline-Ethernet hybrid injector (100) to the CCTV (10a), and supply the remaining power / communication data (P+C) to a second repeater (500) connected in series on the downstream side thereof based on the transmission direction.

[0046] The second repeater (500) can provide some of the power / communication data (P+C) supplied from the first repeater (500) to the streetlight (10b) and supply the remaining power / communication data (P+C) to the third repeater (500) connected in series downstream of it.

[0047] The third repeater (500) can provide power / communication data (P+C) supplied from the second repeater (500) to the Wi-Fi device (10c).

[0048] Here, the fact that three repeaters (500) are connected in series to the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention is only an example, and the number of repeaters (500) connected in series to the power line-Ethernet hybrid injector (100) in the present invention is not specifically limited to three.

[0049] Additionally, the injector (100) specified herein can be manufactured by integrating it with a communication product (Ethernet switch, server, NVR, etc.).

[0050] In this way, the repeater (500) connected in series to the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention will be described in more detail below.

[0051]

[0052] As described above, the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention can combine power (P) and communication data (C) and supply them to a repeater (500). At this time, the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention can be provided as an injector capable of high-power transmission as well as high-speed communication.

[0053] As illustrated in FIGS. 2 and 3, a power line-Ethernet hybrid injector (100) according to a first embodiment of the present invention may include a first input portion (101), a branch portion (102), a second input portion (103), a coupling portion (104), and an output portion (105).

[0054] In addition, the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention may further include a first power line (111), a second power line (112), a branch line (120), a first communication line (130), a first low-pass filter (140), a first high-pass filter (150), and an Ethernet power line communication line (160).

[0055] The first input unit (101) may be provided on one side of the power line-Ethernet hybrid injector (100). The first power line (111) and the second power line (112) may be connected to the power line-Ethernet hybrid injector (100) through the first input unit (101).

[0056] That is, the first input unit (101) may be provided as a connection terminal through which the first power line (111) and the second power line (112) are connected to the power line-Ethernet hybrid injector (100).

[0057] According to a first embodiment of the present invention, the first power line (111) and the second power line (112) can each transmit power of opposite polarities provided from an external power source. For example, the first power line (111) can transmit AC+ power, and the second power line (112) can transmit AC- power.

[0058] At this time, according to the first embodiment of the present invention, the power provided from the external power source may be AC ​​100 V to 240 V or high-voltage power exceeding AC 240 V. In addition, since the commercial power supplied to smart city demonstration complexes recently may be DC power rather than AC power, the power provided from the external power source may also be DC power.

[0059] Meanwhile, the IoT device connected to the repeater (500) may be a device powered by direct current.

[0060] Accordingly, as illustrated in FIG. 4, the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention may further include a diode (170).

[0061] The diode (170) can convert the AC power transmitted through the first power line (111) and the second power line (112) into DC power before the first power line (111) and the second power line (112) are branched by the branch unit (102), if the power is AC power.

[0062] For example, the diode (170) can convert AC+ power transmitted through the first power line (111) into DC+ power.

[0063] Additionally, the diode (170) can convert AC power transmitted through the second power line (112) into DC power.

[0064] Accordingly, DC power can be supplied to the repeater (500), and through this, DC power can also be supplied to an IoT device that is connected to the repeater (500) and is driven by DC power.

[0065] The above branch section (102) can branch the first power line (111) and the second power line (112) in a number corresponding to the number of first communication lines (130) for one-to-one coupling with the plurality of first communication lines (130).

[0066] According to the first embodiment of the present invention, the first communication line (130) may be provided in four numbers. Accordingly, the first power line (111) and the second power line (112) may be branched into four branch lines (120) through the branch section (102).

[0067] That is, according to the first embodiment of the present invention, the first power line (111) can be branched into a first branch line (121) and a second branch line (122) through the branch section (102). In addition, the second power line (112) can be branched into a third branch line (123) and a fourth branch line (124) through the branch section (102).

[0068] Accordingly, AC+ power transmitted through the first power line (111) can be provided to the first branch line (121) and the second branch line (122), and AC- power transmitted through the second power line (112) can be provided to the third branch line (123) and the fourth branch line (124).

[0069] The second input unit (103) may be provided on the other side of the power line-Ethernet hybrid injector (100) on which the first input unit (101) is provided. The first communication line (130) may be connected to the power line-Ethernet hybrid injector (100) via the second input unit (103).

[0070] That is, the second input unit (103) may be provided as a connection terminal through which the first communication line (130) is connected to the power line-Ethernet hybrid injector (100).

[0071] According to the first embodiment of the present invention, the first communication line (130) can transmit communication data provided from an Ethernet chipset.

[0072] At this time, according to the first embodiment of the present invention, the first communication line (130) may be equipped to transmit communication data at a speed of 10 / 100 Mbps. To this end, the first communication line (130) may be equipped with four lines.

[0073] That is, the first communication line (130) may be provided with a 1-1 communication line (131), a 1-2 communication line (132), a 1-3 communication line (133), and a 1-4 communication line (134).

[0074] According to the first embodiment of the present invention, the number of branch lines (120) can be determined according to the number of first communication lines (130).

[0075] Here, it is an example that the first communication line (130) is equipped to transmit communication data at a speed of 10 / 100 Mbps, and the first communication line (130) may also be equipped to transmit communication data at a speed of 1 Gbps.

[0076] In this case, the first communication line (130) may be provided with 8 lines, and accordingly, the branch line (120) may also be branched into 8 lines correspondingly. That is, the first power line (111) and the second power line (112) may each be branched into 4 lines.

[0077] The above coupling unit (104) can couple power transmitted through the first power line (111) and the second power line (112) and provided to the first branch line (121), the second branch line (122), the third branch line (123) and the fourth branch line (124) branched from them, and communication data transmitted through the 1-1 communication line (131), the 1-2 communication line (132), the 1-3 communication line (133) and the 1-4 communication line (134).

[0078] According to the first embodiment of the present invention, the coupling unit (104) can connect the first-first communication line (131) to one longitudinal side of the first branch line (121). Through this, AC+ power transmitted through the first branch line (121) and communication data transmitted through the first-first communication line (131) can be combined.

[0079] In addition, the coupling portion (104) can connect the first-second communication line (132) to one side of the second branch line (122) in the longitudinal direction. Through this, AC+ power transmitted through the second branch line (122) and communication data transmitted through the first-second communication line (132) can be combined.

[0080] And the above-mentioned coupling part (104) can connect the 1-3 communication line (133) to one side of the longitudinal direction of the 3rd branch line (123). Through this, the AC power transmitted through the 3rd branch line (123) and the communication data transmitted through the 1-3 communication line (133) can be combined.

[0081] In addition, the coupling portion (104) can connect the 1-4 communication line (134) to one side of the longitudinal direction of the 4th branch line (124). Through this, AC power transmitted through the 4th branch line (124) and communication data transmitted through the 1-4 communication line (134) can be combined.

[0082] The above output unit (105) may be provided on the other side of a power line-Ethernet hybrid injector (100) having a first input unit (101) provided on one side and a second input unit (103) provided on the other side.

[0083] The above output section (105) may be provided as an output terminal through which an Ethernet power line communication line (160) that provides power / communication data combined through the above coupling section (104) to a neighboring repeater (500) is externally drawn out.

[0084] Meanwhile, the first low-frequency pass filter (140) may be provided with a coil. This first low-frequency pass filter (140) can pass low-frequency power and block high-frequency communication data.

[0085] According to the first embodiment of the present invention, the first low-frequency pass filter (140) may be installed on one longitudinal side of each of a plurality of branch lines (120). In this case, the first low-frequency pass filter (140) may be installed upstream of the portion where the branch line (120) and the first communication line (130) are connected.

[0086] That is, according to the first embodiment of the present invention, four first low-frequency pass filters (140) may be installed on one longitudinal side of the first branch line (121) upstream of the portion where the first branch line (121) and the 1-1 communication line (131) are connected, on one longitudinal side of the second branch line (122) upstream of the portion where the second branch line (122) and the 1-2 communication line (132) are connected, on one longitudinal side of the third branch line (123) upstream of the portion where the third branch line (123) and the 1-3 communication line (133) are connected, and on one longitudinal side of the fourth branch line (124) upstream of the portion where the fourth branch line (124) and the 1-4 communication line (134) are connected.

[0087] Accordingly, the AC+ power transmitted through the first branch line (121) and the second branch line (122) can pass through the first low-pass filter (140). On the other hand, the communication data transmitted through each of the first-first communication line (131) and the first-second communication line (132) can have their upstream movement blocked by the first low-pass filter (140). Accordingly, the backflow of the communication data can be prevented.

[0088] In addition, AC power transmitted through the third branch line (123) and the fourth branch line (124) can pass through the first low-pass filter (140). On the other hand, communication data transmitted through each of the first-third communication line (133) and the first-fourth communication line (134) can have their upstream movement blocked by the first low-pass filter (140). Accordingly, reverse flow of communication data can be prevented.

[0089] The above first high-frequency pass filter (150) can be installed on one side of the length of each of the first communication line (130), more specifically, the 1-1 communication line (131), the 1-2 communication line (132), the 1-3 communication line (133), and the 1-4 communication line (134).

[0090] That is, according to the first embodiment of the present invention, the first low-frequency pass filter (140) and the first high-frequency pass filter (150) may be provided in the same number. This first high-frequency pass filter (150) may be provided as a capacitor.

[0091] The above first high-frequency pass filter (150) can block low-frequency power transmitted through the branch line (120) and pass high-frequency communication data.

[0092] Accordingly, communication data transmitted through each of the first communication line (131), the first-second communication line (132), the first-third communication line (133), and the first-fourth communication line (134) can pass through the first high-frequency pass filter (150). On the other hand, AC power transmitted through the first branch line (121), the second branch line (122), the third branch line (123), and the fourth branch line (124) can be blocked from moving through the first communication line (130) by the first low-frequency pass filter (140).

[0093] As a result, AC+ power transmitted through the first power line (111) and the first branch line (121) and then passed through the first low-frequency pass filter (140) and communication data transmitted through the first-1 communication line (131) and then passed through the first high-frequency pass filter (150) can be transmitted in one direction after being combined by the combining unit (104).

[0094] According to one embodiment of the present invention, the Ethernet power line communication line (160) may include a first Ethernet power line communication line (161) connected to a longitudinal end of the first branch line (121), more specifically, to a portion where the first branch line (121) and the first-1 communication line (131) are connected.

[0095] Accordingly, the combined power / communication data as described above can be provided to the first Ethernet power line communication line (161) and supplied to the repeater (500) through the first Ethernet power line communication line (161).

[0096] In addition, AC+ power transmitted through the first power line (111) and the second branch line (122) and then passed through the first low-frequency pass filter (140) and communication data transmitted through the first-second communication line (132) and then passed through the first high-frequency pass filter (150) can be combined by the coupling unit (104) and then transmitted in one direction.

[0097] According to one embodiment of the present invention, the Ethernet power line communication line (160) may further include a second Ethernet power line communication line (162) connected to the longitudinal end of the second branch line (122), more specifically, to the portion where the second branch line (122) and the first-second communication line (132) are connected.

[0098] Accordingly, the combined power / communication data as described above can be provided to the second Ethernet power line communication line (162) and supplied to the repeater (500) through the second Ethernet power line communication line (162).

[0099] And the AC power transmitted through the second power line (112) and the third branch line (123) and then passed through the first low-frequency pass filter (140) and the communication data transmitted through the first-third communication line (133) and then passed through the first high-frequency pass filter (150) can be transmitted in one direction after being combined by the combining unit (104).

[0100] According to one embodiment of the present invention, the Ethernet power line communication line (160) may further include a third Ethernet power line communication line (163) connected to the longitudinal end of the third branch line (123), more specifically, to the portion where the third branch line (123) and the first-third communication line (133) are connected.

[0101] Accordingly, the combined power / communication data as described above can be provided to the third Ethernet power line communication line (163) and supplied to the repeater (500) through the third Ethernet power line communication line (163).

[0102] In addition, AC power transmitted through the second power line (112) and the fourth branch line (124) and then passed through the first low-frequency pass filter (140) and communication data transmitted through the first-fourth communication line (134) and then passed through the first high-frequency pass filter (150) can be transmitted in one direction after being combined by the combining unit (104).

[0103] According to one embodiment of the present invention, the Ethernet power line communication line (160) may further include a fourth Ethernet power line communication line (164) connected to the longitudinal end of the fourth branch line (124), more specifically, to the portion where the fourth branch line (123) and the first-fourth communication line (134) are connected.

[0104] Accordingly, the combined power / communication data as described above can be provided to the fourth Ethernet power line communication line (164) and supplied to the repeater (500) through the fourth Ethernet power line communication line (164).

[0105] In this way, according to the first embodiment of the present invention, AC power can be used as is, and thus, a much higher power than that of a PoE (Power over Ethernet) system can be combined with communication data for transmission.

[0106] In addition, according to the first embodiment of the present invention, a power line-Ethernet hybrid injector (100) capable of high-speed communication can be provided, and as high-speed communication is possible in this way, uniformity of communication quality can be secured.

[0107] And according to the first embodiment of the present invention, there is no need to convert from a power line communication to an Ethernet communication system, and accordingly, the heat generation issue that occurs in the process of converting a communication system from a conventional power line communication to an Ethernet communication can be prevented in advance, and the installation space can also be minimized.

[0108] And according to the first embodiment of the present invention, a power line-Ethernet hybrid injector (100) that can be custom designed on site can be provided.

[0109]

[0110] Meanwhile, as described above, the repeater (500) can be connected to the power line-Ethernet hybrid injector (100).

[0111] To this end, the repeater (500) may include a second communication line (510), a third power line (521), a fourth power line (522), a second low-frequency pass filter (530), and a second high-frequency pass filter (540).

[0112] The second communication line (510) may be provided in a number corresponding to a plurality of Ethernet power line communication lines (160). Accordingly, the second communication line (510) may include a 2-1 communication line (511), a 2-2 communication line (512), a 2-3 communication line (513), and a 2-4 communication line (514).

[0113] The above-mentioned 2-1 communication line (511) can be connected to the first Ethernet power line communication line (161). The above-mentioned 2-1 communication line (511) can receive only communication data among the power / communication data transmitted through the first Ethernet power line communication line (161).

[0114] The above-mentioned 2-2 communication line (512) can be connected to the 2nd Ethernet power line communication line (162). The 2-2 communication line (512) can receive only communication data among the power / communication data transmitted through the 2nd Ethernet power line communication line (162).

[0115] The above 2-3 communication line (513) can be connected to the 3rd Ethernet power line communication line (163). The 2-3 communication line (513) can receive only communication data among the power / communication data transmitted through the 3rd Ethernet power line communication line (163).

[0116] The above-mentioned 2-4 communication line (514) can be connected to the 4th Ethernet power line communication line (164). The above-mentioned 2-4 communication line (514) can receive only communication data among the power / communication data transmitted through the 4th Ethernet power line communication line (164).

[0117] The third power line (521) and the fourth power line (522) can be connected to multiple Ethernet power line communication lines (160).

[0118] The third power line (521) and the fourth power line (522) can receive only power from among the power / communication data transmitted through the Ethernet power line communication line (160).

[0119] At this time, the third power line (521) can receive AC+ power transmitted through the first Ethernet power line communication line (161) and the second Ethernet power line communication line (162).

[0120] Additionally, the fourth power line (522) can receive AC power transmitted through the third Ethernet power line communication line (163) and the fourth Ethernet power line communication line (164).

[0121] The second low-frequency pass filter (530) may be installed on each branch line of the third power line (521) connected to the first Ethernet power line communication line (161) and the second Ethernet power line communication line (162), respectively. This second low-frequency pass filter (530) may be provided as a coil, similar to the first low-frequency pass filter (140).

[0122] In addition, the second low-frequency pass filter (530) may be installed on each branch line of the fourth power line (522) connected to the third Ethernet power line communication line (163) and the fourth Ethernet power line communication line (164), respectively.

[0123] This second low-frequency pass filter (530) can pass low-frequency power among the power / communication data transmitted from the Ethernet power line communication line (160) and block communication data.

[0124] Accordingly, only power can be provided to the third power line (521) and the fourth power line (522).

[0125] The second high-frequency pass filter (540) may be installed in each of the 2-1 communication line (511), the 2-2 communication line (512), the 2-3 communication line (513), and the 2-4 communication line (514). This second high-frequency pass filter (540) may be provided as a capacitor, similar to the first high-frequency pass filter (150).

[0126] According to the first embodiment of the present invention, the second high-frequency pass filter (540) can block power and pass communication data among power / communication data transmitted from an Ethernet power line communication line (160).

[0127] Accordingly, only communication data can be provided through the 2-1 communication line (511), the 2-2 communication line (512), the 2-3 communication line (513), and the 2-4 communication line (514).

[0128] As illustrated in FIG. 5, the repeater (500) may further include an input unit (501), a power / communication data separation unit (502), an Ethernet chipset (503), a power unit (504), a power / communication data combination unit (505), and an output unit (506).

[0129] The above input unit (501) may be provided as a connection terminal to which the Ethernet power line communication line (160) is connected. Accordingly, power / communication data (PC1) transmitted via the Ethernet power line communication line (160) may be input into the input unit (501).

[0130] The power / communication data separator (502) can separate the power / communication data (PC1) that is coupled to each other into power (P) and communication data (C). For example, the power / communication data separator (502) can separate the power / communication data (PC1) into power (P) and communication data (C) by passing only the power (P) from the power / communication data (PC1) through the second low-pass filter (530) and by passing only the communication data (C) from the power / communication data (PC1) through the second high-pass filter (540).

[0131] The above Ethernet chipset (503) can receive communication data (C) separated from the power / communication data separation unit (502). The above Ethernet chipset (503) can receive communication data (C) through a second communication line (510).

[0132] The Ethernet chipset (503) can extract and classify specific data from the provided communication data (C). For example, the Ethernet chipset (503) can extract a signal corresponding to an IoT device (10a), such as a CCTV, directly connected to a repeater (500), and provide the signal to the IoT device (10a).

[0133] At this time, the repeater (500) and IoT device (10a) may be manufactured as a single product.

[0134] Meanwhile, the signal provided to the IoT device (10a) can be defined as processing communication data (C1), and data among the communication data (C) that does not correspond to the processing communication data (C1) can be defined as transmission communication data (C2). In other words, the transmission communication data (C2) can be defined as the remaining communication data excluding the processing communication data (C1) among the communication data (C).

[0135] The power supply unit (504) can receive power (P) separated from the power / communication data separation unit (502) and distribute the power (P). Specifically, the power supply unit (504) can distribute the power (P) and supply a predetermined amount of power to the IoT device (10a). At this time, the power supplied to the IoT device (10a) can be defined as consumption power (P1), and the power excluding the consumption power (P1) among the power (P) supplied from the power / communication data separation unit (502) can be defined as surplus power (P2). In other words, the power supply unit (504) can classify the power (P) provided from the power / communication data separation unit (502) into consumption power (P1) and surplus power (P2).

[0136] In addition, the power supply unit (504) can distribute a predetermined amount of power from the surplus power (P2) and provide the distributed power to the Ethernet chipset (503). At this time, the predetermined amount of power supplied to the Ethernet chipset (503) can be defined as the Ethernet chipset supply power (P1').

[0137] The power / communication data coupling unit (505) can couple transmission communication data (C2) and surplus power (P2). Specifically, the power / communication data coupling unit (505) can receive transmission communication data (C2) from the Ethernet chipset (503) and surplus power (P2) from the power supply unit (504).

[0138] The power / communication data combining unit (505) can combine the transmission communication data (C2) provided from the Ethernet chipset (503) and the surplus power (P2) provided from the power unit (504). For example, the power / communication data combining unit (505) can combine the transmission communication data (C2) by changing the amplitude or frequency of the surplus power (P2).

[0139] The above output unit (506) can provide power / communication data (PC2) consisting of transmission communication data (C2) and surplus power (P2) combined in the power / communication data combination unit (505) to another neighboring repeater (500) through an Ethernet power line communication line comprised of four lines.

[0140]

[0141] Hereinafter, a power line-Ethernet hybrid injector according to a second embodiment of the present invention will be described with reference to FIG. 6.

[0142]

[0143] FIG. 6 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a second embodiment of the present invention.

[0144]

[0145] As illustrated in FIG. 6, a power line-Ethernet hybrid injector (200) according to a second embodiment of the present invention may include a first power line (211), a second power line (212), a branch line, a first communication line, a first low-pass filter (240), a first high-pass filter (250), and an Ethernet power line communication line.

[0146]

[0147] The first power line (211) and the second power line (212) can each transmit power of opposite polarities provided from an external power source. For example, the first power line (211) can transmit AC+ power, and the second power line (212) can transmit AC- power.

[0148] According to a second embodiment of the present invention, the first power line (211) can be electrically connected to the longitudinal center of any one of the first low-frequency pass filters (240).

[0149] Additionally, the second power line (212) can be electrically connected to the longitudinal center of another first low-frequency pass filter (240).

[0150] The above branch lines may be provided in a number corresponding to the number of the first communication lines. According to the second embodiment of the present invention, the branch lines may be provided as a first branch line (221) and a second branch line (222) branched from the first power line (211), and a third branch line (223) and a fourth branch line (224) branched from the second power line (212).

[0151] At this time, as the first power line (211) is electrically connected to the longitudinal center of one low-frequency pass filter (240), the first branch line (221) and the second branch line (222) can be branched to both sides of the longitudinal direction of one low-frequency pass filter (240). Accordingly, the same AC+ power can be provided to the first branch line (221) and the second branch line (222).

[0152] Likewise, as the second power line (212) is electrically connected to the longitudinal center of another low-pass filter (240), the third branch line (223) and the fourth branch line (224) can be branched to both sides of the longitudinal direction of the other low-pass filter (240). Accordingly, the same AC power can be provided to the third branch line (223) and the fourth branch line (224).

[0153] The first communication line can transmit communication data provided from an Ethernet chipset. According to a second embodiment of the present invention, the first communication line can be configured to transmit communication data at a speed of 10 / 100 Mbps. To this end, the first communication line can be configured with four lines.

[0154] That is, the first communication line may be provided with a 1-1 communication line (231), a 1-2 communication line (232), a 1-3 communication line (233), and a 1-4 communication line (234).

[0155] At this time, according to the second embodiment of the present invention, the first-first communication line (231) and the first-second communication line (232) can form a closed loop. In addition, the first-third communication line (233) and the first-fourth communication line (234) can form a closed loop.

[0156] The first low-frequency pass filter (240) may be formed of a coil and may pass low-frequency power while blocking high-frequency communication data. According to the second embodiment of the present invention, it may be installed at each end of the length direction of the first power line (211) and the second power line (212).

[0157] Accordingly, AC+ power transmitted through the first power line (211) can pass through the first low-frequency pass filter (240) installed at one end of the length of the first power line (211) and be provided to the first branch line (221) and the second branch line (222).

[0158] In addition, AC power transmitted through the second power line (212) can pass through the first low-frequency pass filter (240) installed at one end of the length of the second power line (212) and be provided to the third branch line (223) and the fourth branch line (224).

[0159] The first high-frequency pass filter (250) may be installed between a branch line branched from the first power line (211) and the first communication line. More specifically, the first high-frequency pass filter (250) may be installed between the first branch line (221) and the second branch line (222) branched from the first power line (211) and the first-first communication line (231) and the first-second communication line (232) forming a closed loop.

[0160] In addition, the first high-frequency pass filter (250) may be installed between a branch line branched from the second power line (212) and the first communication line. More specifically, the first high-frequency pass filter (250) may be installed between a third branch line (223) and a fourth branch line (224) branched from the second power line (212) and a first-third communication line (233) and a first-fourth communication line (234) forming a closed loop.

[0161] According to a second embodiment of the present invention, the first high-frequency pass filter (250) may be formed as a filter that blocks low-frequency power and passes high-frequency communication data.

[0162] The primary coil forming the first high-frequency pass filter (250) may be connected to one end in the longitudinal direction of the first-first communication line (231) and the first-second communication line (232) and one end in the longitudinal direction of the first-third communication line (233) and the first-fourth communication line (234), respectively, and the secondary coil functioning as the first low-frequency pass filter (240) may be connected to one end in the longitudinal direction of the first power line (211) and the second power line (212), respectively. At this time, the number of turns of the first coil and the second coil may be changed in design. In addition, an iron core may be provided so that an electromotive force is induced from the first coil to the second coil.

[0163] When communication data transmitted through the 1-1 communication line (231) and the 1-2 communication line (232) that are provided from the Ethernet chipset and form a closed loop reaches the first high-frequency pass filter (250), electromotive force is induced by the first high-frequency pass filter (250), so that the communication data transmitted through the 1-1 communication line (231) can be transmitted to the first branch line (221), and the communication data transmitted through the 1-2 communication line (232) can be transmitted to the second branch line (222).

[0164] In this way, communication data transmitted to the first branch line (221) side through the electromotive force induced by the first high-frequency pass filter (250) can be combined with AC+ power transmitted through the first branch line (221) and provided to the first Ethernet power line communication line (261), and communication data transmitted to the second branch line (222) side through the electromotive force induced by the first high-frequency pass filter (250) can be combined with AC+ power transmitted through the second branch line (222) and provided to the second Ethernet power line communication line (262).

[0165] Likewise, when communication data transmitted through the 1-3 communication line (233) and the 1-4 communication line (234) that are provided from the Ethernet chipset and form a closed loop reaches the first high-frequency pass filter (250), electromotive force is induced by the first high-frequency pass filter (250), so that the communication data transmitted through the 1-3 communication line (233) can be transmitted to the 3rd branch line (223), and the communication data transmitted through the 1-4 communication line (234) can be transmitted to the 4th branch line (224).

[0166] In this way, communication data transmitted to the third branch line (221) side through the electromotive force induced by the first high-frequency pass filter (250) can be combined with AC power transmitted through the third branch line (223) and provided to the third Ethernet power line communication line (263), and communication data transmitted to the fourth branch line (224) side through the electromotive force induced by the first high-frequency pass filter (250) can be combined with AC power transmitted through the fourth branch line (224) and provided to the fourth Ethernet power line communication line (264).

[0167] According to a second embodiment of the present invention, a repeater (500) that is communicatively connected to the power line-Ethernet hybrid injector (200) may include a second communication line, a third power line (521), a fourth power line (522), a second low-pass filter (530), and a second high-pass filter (540).

[0168] At this time, the repeater (500) may have the same structure as the power line-Ethernet hybrid injector (200).

[0169] Accordingly, among the power / communication data transmitted through the first Ethernet power line communication line (261), only the communication data can be transmitted to the second-first communication line (511) by the electromotive force induced by the second high-frequency pass filter (540), and among the power / communication data transmitted through the first Ethernet power line communication line (261), only the power can pass through the second low-frequency pass filter (530) and be provided to the third power line (521).

[0170] In addition, among the power / communication data transmitted through the second Ethernet power line communication line (262), only the communication data can be transmitted to the second-second communication line (512) by the electromotive force induced by the second high-frequency pass filter (540), and among the power / communication data transmitted through the second Ethernet power line communication line (262), only the power can pass through the second low-frequency pass filter (530) and be provided to the third power line (521).

[0171] And among the power / communication data transmitted through the third Ethernet power line communication line (263), only the communication data can be transmitted to the second-third communication line (513) by the electromotive force induced by the second high-frequency pass filter (540), and among the power / communication data transmitted through the third Ethernet power line communication line (263), only the power can pass through the second low-frequency pass filter (530) and be provided to the fourth power line (522).

[0172] In addition, among the power / communication data transmitted through the fourth Ethernet power line communication line (264), only the communication data can be transmitted to the second-fourth communication line (514) by the electromotive force induced by the second high-frequency pass filter (540), and among the power / communication data transmitted through the fourth Ethernet power line communication line (264), only the power can pass through the second low-frequency pass filter (530) and be provided to the fourth power line (522).

[0173] In this way, a portion of the power and communication data separated by the second low-pass filter (530) and the second high-pass filter (540) may be supplied to an IoT device connected to the repeater (500), and the remainder may be recombined and provided to another repeater (500) located downstream based on the transmission direction.

[0174] The power line-Ethernet hybrid injector (200) according to the second embodiment of the present invention is more expensive than the power line-Ethernet hybrid injector (100 in FIG. 3) according to the first embodiment of the present invention, but when standardized, it can secure higher stability than the power line-Ethernet hybrid injector (100) according to the first embodiment.

[0175]

[0176] Meanwhile, FIG. 7 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a third embodiment of the present invention.

[0177]

[0178] Referring to FIG. 7, a power line-Ethernet hybrid injector (300) according to a third embodiment of the present invention may have the same structure as the power line-Ethernet hybrid injector (100 of FIG. 3) according to the first embodiment of the present invention. At this time, a repeater (500) connected to the injector may have the same structure as the repeater according to the second embodiment of the present invention.

[0179] That is, according to the third embodiment of the present invention, the power line-Ethernet hybrid injector (100) according to the first embodiment of the present invention and the repeater (500) according to the second embodiment of the present invention can be combined and connected for communication.

[0180]

[0181] In addition, FIG. 8 is a circuit diagram for explaining a transmission method of a power line-Ethernet hybrid injector according to a fourth embodiment of the present invention.

[0182]

[0183] As illustrated in FIG. 8, a power line-Ethernet hybrid injector (400) according to a fourth embodiment of the present invention may have the same structure as a power line-Ethernet hybrid injector (200 of FIG. 6) according to a second embodiment of the present invention. In this case, a repeater (500) connected to the injector may have the same structure as the repeater according to the first embodiment of the present invention.

[0184] That is, according to the fourth embodiment of the present invention, a power line-Ethernet hybrid injector (200) according to the second embodiment of the present invention and a repeater (500) according to the first embodiment of the present invention can be combined and connected for communication.

[0185]

[0186] While the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to the specific embodiments described above, and should be construed in accordance with the appended claims. Furthermore, those skilled in the art will appreciate that numerous modifications and variations are possible without departing from the scope of the present invention.

Claims

1. First and second power lines each transmitting power of opposite polarity; A plurality of branch lines each branching from the first power line and the second power line; A first communication line that transmits communication data and is provided in a number corresponding to the plurality of branch lines; A first low-pass filter that passes the power and blocks the communication data; A first high-frequency pass filter that blocks the power and passes the communication data; and A powerline-Ethernet hybrid injector comprising a plurality of Ethernet powerline communication lines for transmitting power / communication data combined with power passed through the first low-pass filter and communication data passed through the first high-pass filter.

2. In paragraph 1, The above multiple branch lines and the first communication line are connected in a one-to-one correspondence with each other, The above first low-frequency pass filter is installed on one side of the length of each of the plurality of branch lines, but is installed upstream of the part where the branch line and the first communication line are connected. A power line-Ethernet hybrid injector, wherein the first high-frequency pass filter is installed on one longitudinal side of each of the first communication lines.

3. In paragraph 1, The above first low-frequency pass filter is installed at each end of the longitudinal direction of the first power line and the second power line, The above branch lines branch off from the first power line and the second power line to both sides of the length direction of the first low-frequency pass filter, respectively. The first high-frequency pass filter is installed between a branch line branched from the first power line and the first communication line and between a branch line branched from the second power line and the first communication line, respectively. A power line-Ethernet hybrid injector, wherein the first high-frequency pass filter comprises a coil connected to the first communication line and the first low-frequency pass filter that generates electromotive force by the first communication line.

4. In paragraph 1, A power line-Ethernet hybrid injector further comprising a diode that converts the AC power into DC power before branching into the plurality of branch lines when the power transmitted through the first power line and the second power line is AC power.

5. Communication connection with the power line-Ethernet hybrid injector according to Article 1, A second communication line provided in a number corresponding to the plurality of Ethernet power line communication lines, and receiving only communication data among the power / communication data transmitted through the Ethernet power line communication lines; A third power line and a fourth power line connected to the plurality of Ethernet power line communication lines and receiving only power from among the power / communication data transmitted through the Ethernet power line communication lines; A second low-pass filter that passes power from the above power / communication data to the third power line and the fourth power line and blocks communication data; and A repeater including a second high-frequency pass filter that blocks power from the above power / communication data and passes communication data to provide it to the second communication line.

Images