Power supply system, control method thereof and wiring construction method

Abstract

The invention provides a power supply system and a control method and a wiring construction method thereof, the power supply system comprises a power supply line, a terminal device, a signal emission controller and a signal receiving controller, the signal emission controller is electrically connected with the power supply line, and the signal receiving controller is electrically connected with the power supply line and the terminal device; the signal emission controller transmits a high-frequency carrier control signal to the power supply line, the high-frequency carrier control signal is transmitted to the signal receiving controller through the power supply line, and the signal receiving controller controls the terminal equipment and the power supply line to be in a conduction state or a cut-off state according to the received high-frequency carrier control signal. The high-frequency carrier control signal is transmitted using a power supply line and over a power line carrier. The method can save the usage amount of power supply wires and wire laying auxiliary materials, greatly simplifies the wiring design and construction, reduces the circuit fault points and the fault occurrence rate, and has the prominent advantages of saving the cost, improving the wiring construction efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the fields of power supply systems, control design, and wiring construction, and in particular, to a power supply system, a control method thereof, and a wiring construction method thereof. Background Art

[0002] In the existing power supply system, as Figure 1 shown, in terms of the design and construction of the power supply line, at least the live wire and the neutral wire need to be considered for laying. Various terminal electrical devices, such as lighting lamps, air conditioners, refrigerators, washing machines, etc., are respectively connected to the power supply line through circuit components such as power supply wires and control switches to form a wired electrical connection. Therefore, the power supply control of various terminal electrical devices is carried out by respectively connecting in series an independent control switch with the corresponding terminal device, that is, one control switch can only control the terminal electrical device connected thereto correspondingly, including several terminal electrical devices connected in series in the same loop. For example, when several lighting lamps are connected in series on the same power supply line, only one control switch can be used to control the simultaneous energization or simultaneous power-off of the several lighting lamps connected in series in this loop, so as to achieve centralized and unified control of the several lighting lamps.

[0003] Adopting the above existing power supply control method, although the control is relatively convenient and reliable, however, since on the same power supply line, various terminal electrical devices are respectively connected to the power supply line through independent power supply wires to form a wired electrical connection, the amount of power supply wires used is relatively large. Correspondingly, the amount of construction and laying auxiliary materials for the power supply wires (such as wire conduits, pipe clamps, supports, etc.) will also inevitably increase significantly; moreover, the more terminal electrical devices there are, the more power supply wires, control switches, and construction and laying auxiliary materials are required. If the amount of power supply wires used increases, it not only increases the procurement cost of the power supply wires, but also increases the wiring design difficulty of the power supply wires. Correspondingly, the erection construction amount of the power supply wires will inevitably increase, directly resulting in a significant increase in the construction cost (including labor cost and construction and laying auxiliary material cost); moreover, the more complex the wiring design of the power supply wires is, the more likely it is to have circuit failures, resulting in a double decline in power supply stability and reliability. It is estimated that for the same terminal electrical device, assuming that the power supply wire uses a copper core wire with a cross-sectional area of 6 square millimeters, for every additional meter of this power supply wire, the procurement cost of the power supply wire needs to be increased by about 6 - 8 yuan, and at the same time, the construction cost of the power supply wire (including labor cost and construction and laying auxiliary material cost) is increased by about 20 yuan. It not only causes a large amount of waste of metal wires such as copper and aluminum and wire laying auxiliary materials (such as wire conduits, pipe clamps, supports, etc.), but also leads to a significant increase in the wiring construction cost, which is not conducive to the application and promotion of green environmental protection economy. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: aiming at the problems existing in the prior art, to provide a power supply system, its control method and wiring construction method, which can save the application cost of power supply wires and improve the wiring construction efficiency of the power supply system.

[0005] The technical problem to be solved by the present invention is realized by the following technical solutions: A power supply system includes a power supply line, a terminal device, a signal transmitting controller and a signal receiving controller. An electrical connection is formed between the signal transmitting controller and the power supply line, and the signal receiving controller is electrically connected to the power supply line and the terminal device respectively; The signal transmitting controller transmits a high-frequency carrier control signal to the power supply line, and the high-frequency carrier control signal is transmitted to the signal receiving controller through the power supply line. The signal receiving controller controls the terminal device to be in a conducting state or a cut-off state with respect to the power supply line according to the received high-frequency carrier control signal.

[0006] Further, the signal transmitting controller includes a master control switch module and a transmitting-end MCU. The transmitting-end MCU includes a transmitting-end control module, a transmitting-end address module and a carrier high-frequency signal modulation and generation module. The master control switch module outputs a master control switch signal to the transmitting-end control module. The master control switch signal is converted into a master control instruction by the transmitting-end control module and output. The transmitting-end address module outputs address code information. The master control instruction and the address code information are modulated and processed by the carrier high-frequency signal modulation and generation module to form the high-frequency carrier control signal.

[0007] Further, the high-frequency carrier control signal output by the transmitting-end MCU is output to the power supply line through a transmitting-end differential coupling module.

[0008] Further, the signal receiving controller includes a receiving-end MCU. The receiving-end MCU includes a receiving-end control module, a receiving-end address module and a carrier high-frequency signal receiving and demodulation module. After the carrier high-frequency signal receiving and demodulation module receives the high-frequency carrier control signal output by the transmitting-end MCU from the power supply line, the address code information in the high-frequency carrier control signal is demodulated and compared and verified with the address code information in the receiving-end address module; If the verification is successful, the receiving-end control module outputs a relay control instruction, and the relay control instruction is used to control the terminal device to be in a conducting state or a cut-off state with respect to the power supply line; If the verification fails, the receiving-end control module does not output a relay control instruction, and the terminal device is in a cut-off state with respect to the power supply line.

[0009] Further, the receiving - end control module outputs a relay control instruction to the relay control module, and the relay control module controls the on - state or off - state between the terminal device and the power supply line by controlling the conduction or cut - off of the relay.

[0010] Further, the high - frequency carrier control signal output by the transmitting - end MCU is first output to the receiving - end differential coupling module through the power supply line, and the high - frequency carrier control signal output by the receiving - end differential coupling module is then processed by the filter module and output to the carrier high - frequency signal receiving and demodulation module.

[0011] Further, the filter module includes a resistor R412, capacitors C49, C410, and an inductor L43. A parallel connection is formed between the resistor R412 and the capacitor C49. A parallel connection is formed between the capacitor C49 and the capacitor C410, and inductors L41 and L42 are respectively connected in series on the parallel branches. A parallel connection is formed between the capacitor C410 and the inductor L43, and capacitors C411 and C412 are respectively connected in series on the parallel branches. The inductor L43 is respectively connected in series with capacitors C413 and C414. The capacitor C413 is respectively connected in series with resistors R413 and R415, and the resistor R413 is grounded. The capacitor C414 is respectively connected in series with resistors R414 and R416, and the resistor R414 is grounded.

[0012] A power - supply system control method, where the power - supply system is the power - supply system described above, and high - frequency carrier control signals are transmitted between the signal - transmitting controller and the signal - receiving controller by using the power - supply line and through power - line carrier.

[0013] A power - supply system wiring construction method, where the power - supply system is the power - supply system described above, the signal - receiving controller is respectively electrically connected to a corresponding number of terminal devices, and the corresponding number of terminal devices are connected in parallel through the corresponding signal - receiving controller.

[0014] Further, a number of signal - transmitting controllers and signal - receiving controllers are respectively provided. The number of signal - transmitting controllers are connected in parallel through the power - supply line, the number of signal - receiving controllers are also connected in parallel through the power - supply line, and any signal - transmitting controller and any signal - receiving controller are also connected in parallel through the power - supply line.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By adopting the technical solution of the present invention, the usage amount of power supply wires and wire laying auxiliary materials (such as conduit pipes, pipe clamps, supports, etc.) of the power supply system can be greatly saved, thereby saving the usage amount of metals such as copper and aluminum used for manufacturing power supply wires, and thus greatly saving the procurement cost of power supply wires and wire laying auxiliary materials; in addition, the wiring design and construction of the power supply system can be greatly simplified, the number of circuit fault points and the fault occurrence rate can be reduced, thereby effectively improving the power supply stability and reliability of the power supply system; further, through the simplification of the wiring of the power supply line, the construction process of the power supply line is correspondingly simplified, thereby greatly improving the wiring construction efficiency of the power supply system and saving the wiring construction cost of the power supply system. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the principle design of an existing power supply system (including power supply control and wiring construction).

[0017] Figure 2 It is a schematic diagram of the principle design of a power supply system of the present invention (one signal transmitting controller corresponds to one signal receiving controller).

[0018] Figure 3 It is a schematic diagram of the principle design of a power supply system of the present invention (multiple signal transmitting controllers correspond to multiple signal receiving controllers).

[0019] Figure 4 It is Figure 2 or Figure 3 The system structure diagram of the signal transmitting controller in

[0020] Figure 5 It is Figure 2 or Figure 3 The system structure diagram of the signal receiving controller in

[0021] Figure 6 It is Figure 4 The system structure diagram of the transmitting end differential coupling module in Figure 5 or

[0022] Figure 7 It is Figure 5 The system structure diagram of the filter module in

[0023] Figure 8 It is the signal flow diagram of a power supply system control method of the present invention. Detailed Embodiments

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] As Figure 2 , Figure 3 shown in the power supply system, mainly includes a power supply line, a terminal device, a signal transmission controller and a signal reception controller. For the convenience of description, only the live wire L and the neutral wire N of the power supply line are shown. The signal transmission controller is electrically connected to the power supply line, and the signal reception controller is electrically connected to the power supply line and the terminal device respectively. When the signal transmission controller transmits the high-frequency carrier control signal to the power supply line, the high-frequency carrier control signal is transmitted to the signal reception controller through the power supply line, and the signal reception controller controls the conduction state or the cut-off state between the terminal device and the power supply line according to the received high-frequency carrier control signal. For unified description, the "high frequency" in the "high-frequency carrier control signal" described in this patent preferably has a frequency band range of 3KHz - 100MHz.

[0026] The system structure diagram of the signal transmission controller is as Figure 4 shown, mainly includes a master control switch module and a transmitting end MCU. The transmitting end MCU includes a transmitting end control module, a transmitting end address module and a carrier high-frequency signal modulation and generation module. The master control switch module preferably uses a touch button switch, and the touch button switch is electrically connected to the transmitting end control module. The master control switch module outputs a master control switch signal to the transmitting end control module, and the master control switch signal is a level signal for controlling the on / off state of the circuit. When the transmitting end control module receives the master control switch signal, the master control switch signal is converted into a master control instruction message by the transmitting end control module and output. The transmitting end address module is electrically connected to a transmitting end address code input device. The transmitting end address code input device preferably uses an NFC module, and the NFC module is electrically connected to the transmitting end address module. Through the NFC module, address code information can be injected into the transmitting end address module, and the address code information is stored in the transmitting end address module. The address code information output by the transmitting end address module and the master control instruction message output by the transmitting end control module are modulated by the carrier high-frequency signal modulation and generation module to form the high-frequency carrier control signal.

[0027] The system structure diagram of the signal reception controller is as Figure 5As shown in the figure, it mainly includes a receiving - end MCU. The receiving - end MCU includes a receiving - end control module, a receiving - end address module, and a carrier high - frequency signal receiving and demodulating module. The receiving - end address module is electrically connected to a receiving - end address - code input device. The receiving - end address - code input device preferably uses an NFC module. An electrical connection is formed between the NFC module and the receiving - end address module. Through this NFC module, address - code information can be injected into the receiving - end address module, and this address - code information is stored in the receiving - end address module. When the carrier high - frequency signal receiving and demodulating module receives the high - frequency carrier control signal output by the transmitting - end MCU from the power supply line, the address - code information in the high - frequency carrier control signal is demodulated and compared with the address - code information in the receiving - end address module for verification. If the verification is successful, the receiving - end MCU executes the master control instruction. This master - control instruction information can be converted by the receiving - end MCU into a relay control instruction and output through the receiving - end control module. The relay control instruction is used to control whether the terminal device is in a conducting state or a cut - off state with the power supply line. If the verification fails, the receiving - end MCU does not execute the master control instruction, and this master - control instruction information cannot be converted by the receiving - end MCU into a relay control instruction. Therefore, the receiving - end control module will not output a relay control instruction either. At this time, the terminal device is in a cut - off state with the power supply line. Usually, the conduction or cut - off between the terminal device and the power supply line can be controlled by a relay. Specifically, the receiving - end control module outputs the relay control instruction to a relay control module, and the relay control module controls the conduction or cut - off of the relay to correspondingly control whether the terminal device is in a conducting state or a cut - off state with the power supply line, as Figure 5 shown.

[0028] After adopting the above - mentioned power supply system, the control method of the power supply system is that a signal - transmitting controller and a signal - receiving controller in the power supply system use the power supply line and conduct high - frequency carrier control signal transmission through power - line carrier. The power - line carrier, namely Power Line Carrier, is abbreviated as "PLC". PLC communication is a communication method that uses the power line as the information - transmission medium for information transmission. Specifically, as Figure 4 , Figure 8As shown, the master control switch module in the signal transmission controller outputs a level signal to the transmitter control module. After this level signal enters the transmitter MCU, corresponding master control instructions "0" or "1" are formed. Here, "0" represents the power-off state, and "1" represents the power-on state. The master control instruction information and the address code information are modulated and processed by the carrier high-frequency signal modulation generation module to form a high-frequency carrier control signal. Preferably, the address code information and the control instruction are modulated by OFDM technology to form the high-frequency carrier control signal, and the high-frequency carrier control signal is output by the transmitter MCU to the power supply line. To suppress common-mode interference and enhance the transmission quality and stability of the high-frequency carrier control signal, the high-frequency carrier control signal output by the transmitter MCU can be output to the power supply line through the transmitter differential coupling module. Further, the high-frequency carrier control signal output by the transmitter MCU can first be amplified by the signal amplifier module and then output to the transmitter differential coupling module, as Figure 4 shown. The transmitter differential coupling module mainly includes a capacitor C1 and a transformer T2. The capacitor C1 is connected in series in the high-voltage terminal circuit of the transformer T2, as Figure 6 shown.

[0029] As Figure 5 、 Figure 8As shown, the high-frequency carrier control signal output by the transmitting-end MCU is first output to the receiving-end differential coupling module through the power supply line, and then output to the carrier high-frequency signal receiving and demodulation module through the receiving-end differential coupling module; further, the high-frequency carrier control signal output by the receiving-end differential coupling module is first processed by the filter module and then output to the carrier high-frequency signal receiving and demodulation module. By adopting such a circuit structure design, common-mode interference can be better suppressed, thereby enhancing the transmission quality and stability of the high-frequency carrier control signal. When the carrier high-frequency signal receiving and demodulation module receives the high-frequency carrier control signal output by the transmitting-end MCU from the power supply line, the address code information in the high-frequency carrier control signal is demodulated and compared and verified with the address code information in the receiving-end address module. If the verification fails, the receiving-end MCU does not execute the master control instruction, and of course the receiving-end control module will not output the relay control instruction either, so that the terminal device and the power supply line are also in a cut-off state, that is, the terminal device has no response at this time. If the verification is successful, the receiving-end MCU executes the master control instruction, and this master control instruction information is converted by the receiving-end MCU into a relay control instruction and output through the receiving-end control module. After the relay control instruction is output to the relay control module, the relay control module can make the relay in a conducting state or a cut-off state according to the relay control instruction. When the relay is in the conducting state, the terminal device and the power supply line are also in the conducting state, that is, the response of the terminal device is on at this time. When the relay is in the cut-off state, the terminal device and the power supply line are also in the cut-off state, that is, the response of the terminal device is off at this time.

[0030] Among them, as Figure 6 shown, the receiving-end differential coupling module mainly includes a capacitor C1 and a transformer T2, and the capacitor C1 is connected in series in the high-voltage terminal circuit of the transformer T2. As Figure 7 shown, the filter module mainly includes a resistor R412, capacitors C49, C410 and an inductor L43. The resistor R412 and the capacitor C49 are connected in parallel. The capacitor C49 and the capacitor C410 are connected in parallel, and inductors L41 and L42 are respectively connected in series in the parallel branch. The capacitor C410 and the inductor L43 are connected in parallel, and capacitors C411 and C412 are respectively connected in series in the parallel branch. The inductor L43 is respectively connected in series with capacitors C413 and C414. The capacitor C413 is respectively connected in series with resistors R413 and R415. The resistor R413 is grounded. The capacitor C414 is respectively connected in series with resistors R414 and R416. The resistor R414 is grounded.

[0031] By adopting the above power supply system and control method, the wiring construction method of the power supply system can be asFigure 2 As shown, one signal transmitting controller corresponds to one signal receiving controller. The signal receiving controllers are respectively electrically connected to terminal device 1, terminal device 2, …, terminal device N. The terminal device 1, terminal device 2, …, terminal device N are connected in parallel through the corresponding signal receiving controllers. After the signal transmitting controller outputs a high-frequency carrier control signal to the power supply line, the signal receiving controller can receive the high-frequency carrier control signal from the power supply line. The address code information in the high-frequency carrier control signal is demodulated and compared and verified with the address code information in the receiving end address module. If the verification fails, the receiving end control module does not output a relay control instruction, and at this time, terminal device 1, terminal device 2, …, terminal device N have no response. If the verification is successful, the receiving end control module outputs a relay control instruction, and at this time, terminal device 1, terminal device 2, …, terminal device N all respond. Moreover, since terminal device 1, terminal device 2, …, terminal device N are connected in parallel, even if any one of terminal device 1, terminal device 2, …, terminal device N fails to respond due to its own damage, it will not affect the normal response of other terminal devices.

[0032] In addition to the Figure 2 power supply system wiring construction method shown above, it is also possible to adopt the Figure 3 power supply system wiring construction method shown, that is, multiple signal transmitting controllers correspond to multiple signal receiving controllers. Specifically, as Figure 3 shown, several signal transmitting controllers are provided. The several signal transmitting controllers are connected in parallel through the power supply line. Several signal receiving controllers are also provided, including signal receiving controller 1, signal receiving controller 2, …, signal receiving controller N. The address code information stored on each signal receiving controller is different. The signal receiving controller 1, signal receiving controller 2, …, signal receiving controller N are connected in parallel through the power supply line. Moreover, any one signal transmitting controller and any one signal receiving controller are also connected in parallel through the power supply line. It should be noted that any one signal receiving controller can be electrically connected to a single terminal device or several terminal devices. At this time, the several terminal devices are connected in parallel through the corresponding same signal receiving controller.

[0033] ​After any signal transmitting controller outputs a high-frequency carrier control signal to the power supply line, the signal receiving controllers 1, 2, ……, N can all receive the high-frequency carrier control signal from the power supply line. In any signal receiving controller, the address code information in the high-frequency carrier control signal is demodulated and compared and verified with the address code information stored in the signal receiving controller; if the verification fails, the receiving-end MCU does not execute the master control instruction, then this signal receiving controller does not output a relay control instruction, so, the terminal devices corresponding to this signal receiving controller have no response. If the verification is successful, the receiving-end MCU executes the master control instruction, then this signal receiving controller will output a relay control instruction. After the relay control instruction is output to the relay control module, the relay control module can make the relay in a conducting state or a cut-off state according to the relay control instruction. When the relay is in the conducting state, the terminal device and the power supply line are also in the conducting state, so, the terminal devices corresponding to this signal receiving controller all respond as on. When the relay is in the cut-off state, the terminal device and the power supply line are also in the cut-off state, so, the terminal devices corresponding to this signal receiving controller all respond as off.

[0034] Adopting such a wiring construction method for the power supply system, according to the actual control requirements, the same signal transmitting controller can be preset at multiple different control points, and signal transmitting controllers with different address code information can be preset at multiple different power consumption places according to the specific distribution of the terminal devices, so as to realize that at different control points, the terminal devices in different power consumption places can be controlled through the signal transmitting controller, greatly improving the control efficiency and control convenience.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. It should be noted that any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply system, comprising a power supply line and a terminal device, characterized in that: It also includes a signal transmitting controller and a signal receiving controller, wherein the signal transmitting controller is electrically connected to the power supply line, and the signal receiving controller is electrically connected to the power supply line and the terminal device respectively; the signal transmitting controller transmits a high-frequency carrier control signal to the power supply line, and the high-frequency carrier control signal is transmitted to the signal receiving controller through the power supply line, and the signal receiving controller controls the terminal device and the power supply line to be in a conducting state or a cut-off state according to the received high-frequency carrier control signal.

2. A power supply system according to claim 1, characterized in that: The signal transmission controller includes a master control switch module and a transmitting end MCU, the transmitting end MCU includes a transmitting end control module, a transmitting end address module and a carrier high-frequency signal modulation generation module, the master control switch module outputs a master control switch signal to the transmitting end control module, the master control switch signal is converted into a master control instruction output by the transmitting end control module, the transmitting end address module outputs address code information, and the master control instruction and address code information are modulated and processed by the carrier high-frequency signal modulation generation module to form the high-frequency carrier control signal.

3. A power supply system according to claim 1 or 2, characterized in that: The high-frequency carrier control signal output by the transmitting end MCU is output to the power supply circuit through the transmitting end differential coupling module.

4. A power supply system according to claim 1 or 2, characterized in that: The signal receiving controller includes a receiving end MCU, and the receiving end MCU includes a receiving end control module, a receiving end address module and a carrier high-frequency signal receiving and demodulating module. After the carrier high-frequency signal receiving and demodulating module receives the high-frequency carrier control signal output by the transmitting end MCU from the power supply line, the address code information in the high-frequency carrier control signal is demodulated and compared and verified with the address code information in the receiving end address module; If the verification is successful, the receiving end control module outputs a relay control instruction, and the relay control instruction is used to control the connection state or the disconnection state between the terminal device and the power supply line; If the verification fails, the receiving end control module does not output the relay control instruction, and the terminal device is in a cut-off state from the power supply line.

5. A power supply system according to claim 4, characterized in that: The receiving end control module outputs the relay control instruction to the relay control module, and the relay control module controls the connection state or the disconnection state between the terminal device and the power supply line by controlling the connection or disconnection of the relay.

6. A power supply system according to claim 4, characterized in that: The high-frequency carrier control signal output by the transmitting end MCU is first output to the receiving end differential coupling module through the power supply line, and the high-frequency carrier control signal output by the receiving end differential coupling module is then processed by the filter module and output to the carrier high-frequency signal receiving and demodulation module.

7. A power supply system according to claim 6, characterized in that: The filter module includes a resistor R412, capacitors C49, C410 and an inductor L43. The resistor R412 is connected in parallel with the capacitor C49, the capacitor C49 is connected in parallel with the capacitor C410, and the inductors L41 and L42 are connected in series on the parallel branches respectively. The capacitor C410 is connected in parallel with the inductor L43, and the capacitors C411 and C412 are connected in series on the parallel branches respectively. The inductor L43 is connected in series with the capacitors C413 and C414 respectively, the capacitor C413 is connected in series with the resistors R413 and R415 respectively, the resistor R413 is grounded, the capacitor C414 is connected in series with the resistors R414 and R416 respectively, and the resistor R414 is grounded.

8. A power supply system control method, characterized in that: The power supply system is a power supply system as described in any one of claims 1 to 7, wherein the signal transmitting controller and the signal receiving controller utilize the power supply line and transmit the high-frequency carrier control signal through the power line carrier.

9. A power supply system wiring construction method, characterized in that: The power supply system is the power supply system as described in any one of claims 1-7, the signal receiving controller is electrically connected to the corresponding terminal devices respectively, and the terminal devices are connected in parallel through the corresponding signal receiving controller.

10. A power supply system wiring construction method according to claim 9, characterized in that: The signal transmitting controllers and signal receiving controllers are provided in plurality, and the plurality of signal transmitting controllers are connected in parallel via a power supply line, and the plurality of signal receiving controllers are also connected in parallel via a power supply line, and any signal transmitting controller is also connected in parallel with any signal receiving controller via a power supply line.

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