A method for transmitting signals and electrical energy

Abstract

This invention discloses a signal and power transmission method, belonging to the field of power and signal transmission technology. It is used to extend and shorten power and signal transmission lines in an environment where power and signal transmission are uninterrupted. The method divides the power supply equipment and signal acquisition equipment into three segments for power delivery and signal transmission, connected by a first connecting line, a second connecting line, and a third connecting line. By changing the connection method between the power supply equipment or signal acquisition equipment and the first, second, and third segments, the power and signal transmission lines can be extended and shortened, thus achieving the extension and shortening of power and signal transmission lines in an environment where power and signal transmission are uninterrupted.

Description

Technical Field

[0001] This invention belongs to the field of power and signal transmission technology, and is used to extend and shorten power and signal transmission lines in an environment without interruption of power and signal transmission. In particular, it relates to a signal and power transmission method. Background Technology

[0002] Signal transmission is mainly divided into two categories: wired transmission and wireless transmission. Wired transmission can be further divided into analog signal transmission, digital electrical signal transmission, and digital optical signal transmission. Analog and digital electrical signal transmission are both accomplished through wires. Power transmission refers to the method of transmitting power from one place to another by a power plant or source. In civilian and industrial production sites, it is necessary to monitor, collect, and transmit relevant parameters in real time, and this monitoring, collection, and transmission must be uninterrupted, as well as the power supply to the equipment used on site must be uninterrupted. However, in practice, as the site location changes, it is necessary to lengthen or shorten the power and signal cables. Currently, when lengthening or shortening power and signal cables, the cables can only be disconnected from the junction box, and the lengthened or shortened cables must be reconnected before power can be restored and parameter monitoring, collection, transmission, and power transmission can be resumed. Summary of the Invention

[0003] The purpose of this invention is to provide a solution to the problem in related technologies that it is impossible to extend power and signal transmission lines while they are connected to power and signals.

[0004] The technical solution adopted in this invention is as follows: A signal transmission method, including a signal acquisition device, the method comprising:

[0005] The signal transmission of the signal acquisition device is divided into three segments; wherein, the first segment is connected to the signal acquisition device via a first connecting line, the second segment is detachably connected to the first segment via a second connecting line, and the third segment is detachably connected to the first segment and the second segment respectively via third connecting lines, the second connecting line being a relay line, and the third connecting line being in two groups, the one connected to the first segment and the third segment being a relay line, and the one connected to the third segment and the second segment being an extension line;

[0006] According to the connection method between the signal acquisition device and the first segment, the second segment, and the third segment, the signal transmission line is extended. The extension of the signal transmission line includes connecting the extension line and then disconnecting the second connecting line connecting the second segment and the first segment.

[0007] Furthermore, the signal acquisition device is connected to the first segment, the first segment and the second segment, and the third segment and the first segment and the second segment respectively via a first connecting device, a second connecting device, and a third connecting device.

[0008] Furthermore, the first connecting device, the second connecting device, and the third connecting device each include a junction box, and each junction box is provided with a conductive connector. The conductive connector is insulated from the junction box, and the first connecting line, the second connecting line, and the third connecting line are detachably connected to the conductive connector.

[0009] Furthermore, the connection method between the signal acquisition device and the first segment, the second segment, and the third segment further includes shortening the signal transmission line. Shortening the signal transmission line includes connecting the second connecting line to the second connecting device and then disconnecting the third connecting line between the third segment and the second segment.

[0010] A method for transmitting electrical energy, comprising a power supply device, the method comprising:

[0011] The power transmission of the power supply equipment is divided into three segments; wherein, the first segment is connected to the power supply equipment through a first connecting line, the second segment is detachably connected to the first segment through a second connecting line, and the third segment is detachably connected to the first segment and the second segment respectively through a third connecting line. The second connecting line is a relay line, and the third connecting line consists of two sets, one connected to the first segment and the third segment is a relay line, and the other connected to the third segment and the second segment is an extension line.

[0012] According to the connection method between the power supply equipment and the first segment, the second segment, and the third segment, the power transmission line is extended. The extension of the power transmission line includes connecting the extension line and then disconnecting the second connecting line connecting the second segment and the first segment.

[0013] The power supply equipment is connected to the first segment, the first segment and the second segment, and the third segment and the first and second segments respectively via a first connecting device, a second connecting device, and a third connecting device, and to the first connecting line, the second connecting line, and the third connecting line.

[0014] Furthermore, the first connecting device, the second connecting device, and the third connecting device each include a junction box, and each junction box is provided with a conductive connector. The conductive connector is insulated from the junction box, and the first connecting line, the second connecting line, and the third connecting line are detachably connected to the conductive connector.

[0015] Furthermore, the connection method between the power supply equipment and the first segment, the second segment, and the third segment further includes shortening the power transmission line. Shortening the power transmission line includes connecting to the second connection device through the second connection line and then disconnecting the third connection line between the third segment and the second segment.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] This invention divides the signal transmission on a signal acquisition device into three segments. The first segment is connected to the signal acquisition device via a first connecting line. The second segment is detachably connected to the first segment via a second connecting line. The third segment is detachably connected to both the first and second segments via third connecting lines. The second connecting line is a relay line. There are two sets of third connecting lines: one connecting to the first and third segments is a relay line, and the other connecting to the second and third segments is an extension line. The signal transmission lines are extended according to the connection method between the signal acquisition device and the first, second, and third segments. During extension, the second and third segments are connected using the extension line. Then, the second connecting line... The cable is detached from the second segment. At this point, the first, third, and second segments are connected in series, completing the first extension of the signal transmission line. The second connecting wire is then connected to the external connecting device, preparing for the next extension. The external connecting device is connected to the third segment using the extension wire, and then the third connecting wire is detached from the third segment. At this point, the first segment, the external connecting device, the third segment, and the second segment are connected in series, completing the second extension of the signal transmission line. This allows for extension of the signal transmission line in an environment without interrupting the signal. The third connecting wire is then connected to another external connecting device, preparing for the next extension. The process of shortening the signal transmission line is the reverse of extending it, and will not be elaborated further. Similarly... This invention divides the power transmission on the power supply equipment into three segments. The first segment is connected to the power supply equipment via a first connecting line. The second segment is detachably connected to the first segment via a second connecting line. The third segment is detachably connected to both the first and second segments via third connecting lines. The second connecting line is a relay line. There are two sets of third connecting lines: one connecting to the first and third segments is a relay line, and the other connecting to the second and third segments is an extension line. The power transmission lines are extended according to the connection method between the power transmission equipment and the first, second, and third segments. During extension, the second and third segments are detachably connected using the extension lines. The first, third, and second segments are connected in series, completing the first extension of the power transmission line. The second connecting wire is then connected to an external connecting device, preparing for the next extension. The external connecting device is then connected to the third segment using the extension wire, and the third connecting wire is disconnected from the third segment. The first, third, and second segments are then connected in series, completing the second extension of the power transmission line. The third connecting wire is then connected to another external connecting device, preparing for the next extension. This achieves power transmission line extension without power interruption. The power transmission line shortening process is the reverse of the power transmission line extension process and will not be elaborated further.

[0018] Each conductive connector of the present invention has three or more threaded holes and bolts, ensuring that no two connecting wires are connected to the same threaded hole and bolt at the same time during each wiring or disconnection, thus preventing transmission line interruption during operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the signal transmission device process in the embodiment;

[0020] Figure 2 This is a schematic diagram of the power transmission equipment process in the embodiment;

[0021] Figure 3 This is a schematic diagram of the signal transmission device in the embodiment;

[0022] Figure 4 This is a schematic diagram of the signal transmission device after the first extension in the embodiment;

[0023] Figure 5 This is a schematic diagram of the signal transmission device after the second extension in the embodiment;

[0024] Figure 6 This is a schematic diagram of the power transmission equipment in the embodiment;

[0025] Figure 7 This is a schematic diagram of the power transmission device after the first extension in the embodiment;

[0026] Figure 8 This is a schematic diagram of the power transmission device after the second extension in the embodiment.

[0027] In the diagram: 1 Second connecting device, 2 Second connecting line, 3 First connecting device, 4 Signal acquisition equipment, 5 First connecting line, 6 Third connecting line, 7 Third connecting device, 8 Conductive connector, 9 Power supply equipment, 10 External connecting device a, 11 External connecting device b. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] like Figure 1 , Figures 3-5 As shown, a signal transmission method includes a signal acquisition device 4, the method comprising:

[0030] The signal transmission of the signal acquisition device 4 is divided into three segments; the first segment is connected to the signal acquisition device 4 via a first connecting line 5, the second segment is detachably connected to the first segment via a second connecting line 2, and the third segment is detachably connected to the first segment and the second segment via third connecting lines 6 respectively. The second connecting line 2 is a relay line, and the third connecting lines 6 are in two groups: the one connected to the first segment and the third segment is a relay line, and the one connected to the third segment and the second segment is an extension line.

[0031] Based on the connection method between the signal acquisition device 4 and the first, second, and third segments, the signal transmission line is extended. Extending the signal transmission line includes connecting the extension line and then disconnecting the corresponding repeater line. During the extension, refer to... Figure 4 The signal transmission line is extended by connecting the extension line between the second and third segments and then disconnecting the second connecting line 2 that connects the second segment to the first segment. When shortening the signal transmission line, the second segment is connected to the first segment through the second connecting line 2, and then the extension line between the second and third segments is disconnected to shorten the signal transmission line. This allows for the extension and shortening of the signal transmission line in an environment with continuous signal transmission.

[0032] refer to Figure 3 and Figure 5As shown, in specific implementation, the transmission of the signal acquisition device 4 is set into three segments to extend and shorten the transmission line of the signal acquisition device 4. Each of the three segments is equipped with a connecting device, which is connected to the signal transmission line. Adjusting the connection between the second connecting line 2 and the third connecting line 6 among the three connecting devices achieves the extension and shortening of the signal transmission line. The three connecting devices include a first connecting device 3, a second connecting device 1, and a third connecting device 7. The first connecting device 3 is connected to the signal acquisition device 4 via a first connecting line 5. The connection method adopts... The connection is detachable, facilitating installation and subsequent disassembly. The first connection device 3 includes a junction box, which is a plastic junction box. Two conductive connectors 8 are respectively installed inside the junction box. The two conductive connectors 8 are insulated from the junction box and are evenly spaced within the junction box, meaning there is a gap between adjacent conductive connectors 8 to prevent short circuits. Both conductive connectors 8 are conductive copper sheets or other conductive metals, and each conductive connector 8 has a threaded hole. The first connecting wire 5 is electrically connected to the signal acquisition device 4, and the other end of the first connecting wire 5 is connected to the inlet terminal of the junction box. It is connected to one end of the conductive connector 8 installed in the junction box; the second connecting device 1 is connected to the first connecting device 3 through the second connecting line 2, and the second connecting device 1 and the first connecting device 3 have the same structure; the third connecting device 7 has the same structure as the first connecting device 3 and the second connecting device 1; wherein the output end of the second connecting device 1 is connected to the back-end signal through a signal transmission line; the input and output ends of the third connecting device 7 are respectively provided with third connecting lines 6, and there are two sets of third connecting lines 6, one set of which has its two ends connected to the output end of the first connecting device 3 and the third connecting line 6 respectively. The incoming line of device 7 is detachable, and this third connecting line 6 serves as a relay line. A first connecting device 3, a second connecting device 1, and a third connecting device 7 are set on the signal acquisition device 4 and connected by a first connecting line 5, a second connecting line 2, and a third connecting line 6 to complete the signal transmission between the signal acquisition device 4 and the back end. By adjusting the connection and disconnection methods of the second connecting line 2 and the third connecting line 6 with the first connecting device 3, the second connecting line 1, and the third connecting device 7, the signal transmission line can be extended and shortened, thus achieving the extension and shortening of the signal transmission line in a continuous signal environment.

[0033] When extending the signal transmission line on the signal acquisition device 4, the second connecting device 1 and the third connecting device 7 are detachably connected using the extension line. Then, the second connecting line 2 is disconnected from the input end of the second connecting device 1. At this time, the first connecting device 5, the third connecting device 7, and the second connecting device 1 are connected in series to complete the first signal transmission line extension. The second connecting line 2 is then connected to the external connecting device a10 to prepare for the next signal transmission line extension. The external connecting device a10 is detachably connected to the input end of the third connecting device 7 using the extension line, and the third connecting line 6 is disconnected from the input end of the third connecting device 7. At this time, the first connecting device 3, the external connecting device a10, the third connecting device 7, and the second connecting device 1 are connected in series to complete the second signal transmission line extension. The third connecting line 6 is then connected to another external connecting device b11 to prepare for the next signal transmission line extension. The signal transmission line shortening process is the reverse of the signal transmission line extension process. Here, we take one shortening as an example for explanation: See Figure 4 → Figure 3 The second connecting line 2 is connected to the second connecting device 1 and the first connecting device 3, and the extension line between the second connecting device 1 and the third connecting device 7 is removed to shorten the signal transmission line.

[0034] Further understanding, in the above embodiments, the first connecting device 3, the second connecting device 1, and the third connecting device 7 installed on the signal acquisition device 4 form a group. That is, the signal acquisition device 4 needs the cooperation of the first connecting device 3, the second connecting device 1, and the third connecting device 7 to complete the extension and shortening of the signal transmission line. Simultaneously, multiple groups of second connecting devices 1 and third connecting devices 7 can be installed on the signal acquisition device 4. The purpose is to complete multiple extensions and shortenings of the transmission line on the signal acquisition device 4. The principle of extension and shortening is the same as described above and will not be elaborated here. At the same time, the conductive connectors 8 inside the junction boxes used on the first connecting device 3, the second connecting device 1, and the third connecting device 7 can be multiple. The number of conductive connectors 8 is matched with the ports of the signal transmission line, the purpose of which is to simultaneously achieve the extension and shortening of multiple signal transmission lines, such as... Figures 3-5As shown, the second connecting device 1 and the third connecting device 7 are detachably connected using an extension line. Then, the second connecting line 2 is detached from the second connecting device 1. At this point, the first connecting device 5, the third connecting device 7, and the second connecting device 1 are connected in series, completing the first signal transmission line extension. The second connecting line 2 is then connected to the external connecting device a10, preparing for the next signal transmission line extension. The external connecting device a10 and the third connecting device 7 are detachably connected using an extension line, and the third connecting line 6 is detached from the input end of the third connecting device 7. At this point, the first connecting device 3, the external connecting device a10, the third connecting device 7, and the second connecting device 1 are connected in series, completing the second signal transmission line extension. The third connecting line 6 is then connected to another external connecting device b11, preparing for the next signal transmission line extension. The signal transmission line shortening process is the reverse of the signal transmission line extension process and will not be described further here.

[0035] To further understand, the three segments can also be interconnected, and effective line adjustments can be made according to the connection method. The purpose is to complete the signal connection between the signal acquisition device 4 and the back end. The signal transmission on the signal acquisition device 4 is divided into three segments to achieve parallel transmission of two signals simultaneously. When one signal is disconnected during the extension and shortening of the signal transmission line, the other signal can complete the signal connection between the signal acquisition device 4 and the back end. The extension or shortening of the signal transmission line is completed by separately extending or shortening one of the two signal transmission lines, thereby achieving the extension or shortening of the signal transmission line in an environment without interrupting the signal.

[0036] like Figure 2 , Figures 6-8 As shown, a power transmission method includes a power supply device, the method comprising:

[0037] The power transmission of the power supply equipment 9 is divided into three segments; the first segment is connected to the power supply equipment 9 via a first connecting line 5, the second segment is detachably connected to the first segment via a second connecting line 2, and the third segment is detachably connected to the first segment and the second segment via third connecting lines 6 respectively. The second connecting line 2 is a relay line, and the third connecting lines 6 are in two groups: the one connected to the first segment and the third segment is a relay line, and the one connected to the third segment and the second segment is an extension line.

[0038] According to the connection method between the power supply equipment 9 and the first, second, and third segments, the power transmission line is extended. The extension of the power transmission line includes connecting the extension line and then disconnecting the second connecting line 2 connecting the second segment and the first segment. During extension, the extension line is connected and then the second connecting line 2 connecting the second segment and the first segment is disconnected. Power is transmitted to the power terminal in the order of transmission from the power supply equipment 9 to the first segment, the third segment, and the second segment. The third connecting line 6 connecting the third segment and the second segment is the extension line, thus completing the extension of the power transmission line. During shortening, the second segment and the first segment are connected through the second connecting line 2, and then the extension line between the second segment and the third segment is disconnected, thus completing the shortening of the power transmission line. This allows for the extension and shortening of the power transmission line without interrupting power.

[0039] refer to Figure 6 and Figure 8As shown, in specific implementation, the power transmission of the power supply equipment 9 is set into three segments to extend and shorten the power transmission line of the power supply equipment 9. Each of the three segments is equipped with a connecting device, which is connected to the three power transmission lines respectively. Adjusting the connection between the second connecting line 2 and the third connecting line 6 among the three connecting devices achieves the extension and shortening of the power transmission line. The three connecting devices include a first connecting device 3, a second connecting device 1, and a third connecting device 7. The first connecting device 3 is connected to the power supply equipment 9 via a first connecting line 5, and the connection method adopts a flexible... The connection is detachable, facilitating installation and subsequent disassembly. The first connecting device 3 includes a junction box, which is a plastic junction box. Two conductive connectors 8 are respectively installed inside the junction box. The two conductive connectors 8 are insulated from the junction box and are evenly spaced within it, meaning there is a gap between adjacent conductive connectors 8. Both conductive connectors 8 are conductive copper sheets or other conductive metals, and each conductive connector 8 has a threaded hole. The first connecting wire 5 is electrically connected to the output terminal of the power supply equipment 9, and the other end of the first connecting wire 5 is connected to the input terminal of the junction box on the first connecting device 3. The connection is to one end of the conductive connector 8 located inside the junction box; the second connecting device 1 is connected to the first connecting device 3 via a second connecting line 2, and the second connecting device 1 has the same structure as the first connecting device 3; the third connecting device 7 also has the same structure as the first connecting device 3 and the second connecting device 1; the output end of the second connecting device 1 is connected to the front-end load via a power transmission line; the input and output ends of the third connecting device 7 are respectively provided with third connecting lines 6, and there are two sets of third connecting lines 6, one set of which has its two ends connected to the output end of the first connecting device 3 and the first connecting device 3 respectively. The incoming end of the third connecting device 7 is detachable, and this third connecting line 6 serves as a relay line. The first connecting device 3, the second connecting device 1, and the third connecting device 7 are installed on the power supply equipment 9 and connected by the first connecting line 5, the second connecting line 2, and the third connecting line 6 to complete the power transmission between the power supply equipment 9 and the front-end load. By adjusting the connection and disconnection methods of the second connecting line 2 and the third connecting line 6 with the first connecting device 3, the second connecting line 1, and the third connecting line 7, the power transmission line can be shortened and extended, thus achieving the extension and shortening of the power transmission line in an uninterrupted power supply environment.

[0040] like Figure 8As shown, when extending the power transmission line on the power supply equipment 9, the second connecting device 1 and the third connecting device 7 are detachably connected using the extension line. Then, the second connecting line 2 is disconnected from the input end of the second connecting device 1. At this time, the first connecting device 5, the third connecting device 7, and the second connecting device 1 are connected in series to complete the first extension of the power transmission line. The second connecting line 2 is then connected to the external connecting device a10 to prepare for the next extension of the power transmission line. The external connecting device a10 is detachably connected to the input end of the third connecting device 7 using the extension line, and the third connecting line 6 is disconnected from the input end of the third connecting device 7. At this time, the first connecting device 3, the external connecting device a10, the third connecting device 7, and the second connecting device 1 are connected in series to complete the second extension of the power transmission line. The third connecting line 6 is then connected to another external connecting device b11 to prepare for the next extension of the power transmission line. The power transmission line shortening process is the reverse process of the power transmission line extension. Here, we take one shortening as an example for explanation: See Figure 7 → Figure 6 Connect the second connecting line 2 to the second connecting device 1 and the first connecting device 3, and then remove the extension line between the second connecting device 1 and the third connecting device 7 to shorten the power transmission line.

[0041] Further understanding, in the above embodiments, the first connecting device 3, the second connecting device 1, and the third connecting device 7 installed on the power supply equipment 9 form a group. That is, the power supply equipment 9 needs the cooperation of the first connecting device 3, the second connecting device 1, and the third connecting device 7 to extend and shorten the power transmission lines. Simultaneously, the second connecting device 1 and the third connecting device 7 installed on the power supply equipment 9 can also be multiple groups, the purpose of which is to complete multiple extensions and shortenings of the power transmission lines on the power supply equipment 9. The principle of extension and shortening is the same as described above and will not be elaborated here. At the same time, the conductive connectors 8 inside the junction boxes used on the first connecting device 3, the second connecting device 1, and the third connecting device 7 can be multiple. The number of conductive connectors 8 is matched with the power transmission ports of the power supply equipment 9, the purpose of which is to simultaneously extend and shorten multiple power transmission lines, such as... Figures 6-8As shown, the second connecting device 1 and the third connecting device 7 are detachably connected using an extension line (i.e., the second group of third connecting lines 6). Then, the second connecting line 2 is disconnected from the input end of the second connecting device 1. At this point, the first connecting device 3, the third connecting device 7, and the second connecting device 1 are connected in series, completing the first extension of the power transmission line. The second connecting line 2 is then connected to the external connecting device a10, preparing for the next extension of the power transmission line. The external connecting device a10 is detachably connected to the input end of the third connecting device 7 using the extension line. Then, the third connecting line 6 is disconnected from the input end of the third connecting device 7. At this point, the first connecting device 2, the external connecting device a10, the third connecting device 7, and the second connecting device 1 are connected in series, completing the second extension of the power transmission line. The third connecting line is then connected to another external connecting device, preparing for the next extension of the power transmission line, thus achieving the extension of the power transmission line without power interruption. The power transmission line shortening process is the reverse process of the power transmission line extension, and will not be described further here.

[0042] To further understand, the conductive connector 8, installed inside the junction box, is insulated from the junction box to prevent leakage and short circuits, making it suitable for low-voltage power transmission. Ceramic insulators are installed inside the junction box, with a certain spacing between adjacent ceramic insulators. The conductive connector 8 is then installed on the ceramic insulators to complete high-voltage power transmission. The ceramic insulators are line porcelain crossarm insulators, with the lower end of the line porcelain crossarm insulator fixedly connected to the bottom of the junction box. The conductive connector 8 is installed on the upper part of the line porcelain crossarm insulator to complete high-voltage power transmission. The wiring method is the same as the principle described above and will not be elaborated here.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A signal transmission method for a signal acquisition device, characterized in that, The method includes: The signal acquisition device transmits signals based on a first connecting device, a second connecting device, and a third connecting device. The first connecting device is connected to the signal acquisition device via a first connecting line. The second connecting device is detachably connected to the first connecting device via a second connecting line. The third connecting device is detachably connected to the first connecting device and the second connecting device via third connecting lines. The second connecting line is a relay line. There are two sets of third connecting lines: the third connecting line connecting the first connecting device and the third connecting device is a relay line, and the third connecting line connecting the third connecting device and the second connecting device is an extension line. The signal transmission line is extended according to the connection method between the signal acquisition device and the first connecting device, the second connecting device, and the third connecting device. The signal transmission line extension includes: detachably connecting the second and third connecting devices using an extension line; then disconnecting the second connecting line from the input end of the second connecting device, so that the first, third, and second connecting devices are connected in series sequentially to complete the first signal transmission line extension; and connecting the second connecting line to external connecting device a to prepare for the next signal transmission line extension; detachably connecting the external connecting device a to the input end of the third connecting device using an external extension line; and disconnecting the third connecting line from the input end of the third connecting device, so that the first connecting device, external connecting device a, third connecting device, and second connecting device are connected in series sequentially to complete the second signal transmission line extension; and connecting the third connecting line to another external connecting device b to prepare for the next signal transmission line extension, and so on, to extend the signal transmission line.

2. The method according to claim 1, characterized in that, The first connecting device, the second connecting device, and the third connecting device each include a junction box, and each junction box is provided with a conductive connector. The conductive connector is insulated from the junction box, and the first connecting line, the second connecting line, and the third connecting line are detachably connected to the conductive connector.

3. The method according to claim 2, characterized in that, It also includes shortening the signal transmission line, which is the reverse process of extending the signal transmission line.

4. A method for transmitting electrical energy in a power supply device, characterized in that, The method includes: The power supply equipment transmits electrical energy based on a first connecting device, a second connecting device, and a third connecting device; wherein, the first connecting device is connected to the power supply equipment via a first connecting line, the second connecting device is detachably connected to the first connecting device via a second connecting line, and the third connecting device is detachably connected to the first connecting device and the second connecting device via third connecting lines respectively; the second connecting line is a relay line, and there are two sets of third connecting lines, one connecting the first connecting device and the third connecting device as a relay line, and the other connecting the third connecting device and the second connecting device as an extension line; The power transmission line is extended according to the connection method between the power supply equipment and the first connecting device, the second connecting device, and the third connecting device. The extension of the power transmission line includes: detachably connecting the second and third connecting devices using an extension line; disconnecting the second connecting line from the input end of the second connecting device; connecting the first, third, and second connecting devices in series to complete the first extension of the power transmission line; and connecting the second connecting line to an external connecting device a to prepare for the next extension of the power transmission line; detachably connecting the external connecting device a to the input end of the third connecting device using an external extension line; disconnecting the third connecting line from the input end of the third connecting device; connecting the first connecting device, external connecting device a, third connecting device, and second connecting device in series to complete the second extension of the power transmission line; and connecting the third connecting line to another external connecting device b to prepare for the next extension of the power transmission line, and so on, to extend the power transmission line.

5. The method according to claim 4, characterized in that, The first connecting device, the second connecting device, and the third connecting device each include a junction box, and each junction box is provided with a conductive connector. The conductive connector is insulated from the junction box, and the first connecting line, the second connecting line, and the third connecting line are detachably connected to the conductive connector.

6. The method according to claim 5, characterized in that, It also includes shortening the power transmission line, which is the reverse process of extending the power transmission line.

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