Power control system

Abstract

The embodiment of the utility model relates to the field of power switch control devices, and provides a power control system which comprises a master control gateway and a plurality of intelligent switches, the master control gateway is in communication connection with a server, the master control gateway comprises a total output end, and the master control gateway responds to a control command sent by the server and sends out a control signal from the total output end; the intelligent switch comprises a control circuit board and a relay, the control circuit board is connected with the relay, the control circuit board controls the relay to be connected or disconnected, the control circuit board is provided with a signal input end and a signal output end, and the signal output end corresponding to one intelligent switch is connected with the signal input end corresponding to the other intelligent switch through a control line. The plurality of intelligent switches are sequentially connected in series, and the signal input end corresponding to the first intelligent switch connected in series is connected with the total output end of the master control gateway through a control line. According to the power control system provided by the embodiment of the invention, the cost of the power control system can be reduced, and the use flexibility of the power control system is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of power switch control devices, and in particular to a power control system. Background Art

[0002] A power switch is a device used to control the on and off of electricity. With the popularization of Internet of Things technology, in some application scenarios, users need to remotely control the on and off of the power switch when they are far away from the location of the switch, and get reminders when the voltage or current of the power equipment is abnormal. Therefore, an Internet of Things power switch that uses Internet of Things technology for remote control and monitoring has been created.

[0003] However, the current power control system based on the IoT power switch control device still has many limitations in high-power, multi-device usage scenarios, and the cost of use is relatively high. Utility Model Content

[0004] The embodiment of the present application provides a power control system, which at least helps to reduce the cost of the power control system and improve the flexibility of use of the power control system.

[0005] According to some embodiments of the present application, on the one hand, the embodiments of the present application provide an electric power control system, including: a main control gateway, which is communicatively connected to a server, the main control gateway includes a total output terminal, and the main control gateway responds to a control command issued by the server and sends a control signal from the total output terminal; multiple intelligent switches, the intelligent switch includes a control circuit board and a relay, the control circuit board is connected to the relay, the control circuit board controls the conduction or disconnection of the relay, the control circuit board has a signal input terminal and a signal output terminal, the signal output terminal corresponding to one intelligent switch is connected to the signal input terminal corresponding to another intelligent switch through a control line, and the multiple intelligent switches are connected in series in sequence, and the signal input terminal corresponding to the first intelligent switch in the series is connected to the total output terminal of the main control gateway through a control line.

[0006] In some embodiments, the control line includes: a data line, the data line includes an output data line and a receiving data line, the output data line is used to send data information to the master control gateway, and the receiving data line is used to receive the control signal sent by the master control gateway. Each smart switch is connected in parallel with the master control gateway through the output data line and the receiving data line.

[0007] In some embodiments, the control line also includes: an enable signal line, the smart switch is connected in series with the main control gateway through the enable signal line, the main control gateway sends an enable signal or a disable signal from the main output end through the enable signal line, and the smart switch responds to the enable signal through the output data line to feedback address information to the main control gateway, the address information is represented as the address corresponding to the smart switch, and the smart switch does not respond when receiving the disable signal.

[0008] In some embodiments, when the signal input end of the smart switch receives an enable signal, the signal output end of the smart switch outputs an enable signal or a disable signal; when the signal input end of the smart switch receives a disable signal, the signal output end of the smart switch does not output a signal.

[0009] In some embodiments, the control line includes: a power line, the power line includes a positive power line and a negative power line, the master control gateway provides power to the control circuit board through the positive power line and the negative power line, and each smart switch is connected in parallel with the master control gateway through the positive power line and the negative power line.

[0010] In some embodiments, the master control gateway further includes a power switch, and the power switch is used to control the conduction and disconnection of the positive power line and the negative power line.

[0011] In some embodiments, the relay is a normally open relay.

[0012] In some embodiments, the master control gateway includes a plurality of main output terminals, and a plurality of groups of series-connected intelligent switches are respectively connected to different main output terminals.

[0013] In some embodiments, a fuse is provided between the power input terminal of the relay and the power output terminal of the relay.

[0014] In some embodiments, the operating voltages corresponding to the relays of different intelligent switches are the same or different.

[0015] The technical solution provided by the embodiments of the present application has at least the following advantages:

[0016] In the power control system provided by the embodiment of the present application, the master control gateway is connected to the server for communication, the master control gateway can send a signal to the server or receive a signal from the server, the user can obtain the signal transmitted by the master control gateway through the server or send a control command to the master control gateway, and the master control gateway can respond to the control command of the server and send a control signal from the total output end. Multiple intelligent switches are connected in series in sequence, and the signal input end corresponding to the first intelligent switch in series is connected to the total output end of the master control gateway through a control line. In this way, the control signal can be transmitted to the control circuit board corresponding to the first intelligent switch through the control line, thereby realizing the remote switching or monitoring of the relay of the first intelligent switch. If the second intelligent switch needs to be remotely controlled, the control signal can also be sent through the total output end of the master control gateway, which is transmitted to the location of the first intelligent switch through the control line between the master control gateway and the first intelligent switch, and then transmitted to the control circuit board corresponding to the second intelligent switch through the control line between the first intelligent switch and the second intelligent switch, thereby realizing the remote switching or monitoring of the relay of the second intelligent switch. When the number of connected smart switches is greater, the control signal is transmitted step by step in this way. Since the smart switches are connected in series in sequence, each smart switch can be connected to another smart switch closest to it according to its location. The number of smart switches is more flexible, and it is more convenient to add or remove smart switches, which is not limited by the total number of output terminals of the master control gateway. The relay of each smart switch can be set in an independent circuit structure to control the conduction or shutdown of the power supply in each circuit structure, without separating multiple power output terminals from the same power input terminal, so as to reduce the pressure of power input or power output of the power control system and reduce the complexity of circuit design. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. Unless otherwise specified, the pictures in the drawings do not constitute a scale limitation. In order to more clearly illustrate the embodiments of the present application or the technical solutions in the traditional technology, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a power control system provided in one embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of another power control system provided in one embodiment of the present application;

[0020] Figure 3A schematic diagram of the structure of a power control system provided in one embodiment of the present application;

[0021] Figure 4 for Figure 3 Schematic diagram of the equivalent circuit structure of the power control system;

[0022] Figure 5 for Figure 3 Main view of the China Electric Power Control System;

[0023] Figure 6 A schematic diagram of an equivalent circuit structure of another power control system provided in one embodiment of the present application. DETAILED DESCRIPTION

[0024] As can be seen from the background technology, the current power control system still has many limitations in the use scenario of high-power and multiple devices, and the cost of use is relatively high.

[0025] Figure 1 A schematic diagram of the structure of a power control system provided in one embodiment of the present application.

[0026] refer to Figure 1 In some embodiments, the power control system based on the IoT power switch control device includes a communication module, a control circuit board and a relay, wherein the communication module is connected to the control circuit board, and the control circuit board is connected to the relay. The communication module is used to provide a communication network for the power control system, such as 4G or WIFI network communication, etc.; the control circuit board is used to control the conduction and disconnection of the relay, for example, the control circuit board can be a single-chip microcomputer system with input and output control capabilities; the relay is an automatic switching element with an isolation function, which plays the role of automatic adjustment, safety protection or conversion circuit in the corresponding connected circuit. The control circuit board receives the control command from the server through the network through the communication module, and sends a control signal in response to the control command to control the conduction and disconnection of the relay, thereby achieving the purpose of remotely controlling the conduction or disconnection of the circuit where the relay is located in the power control system.

[0027] However, the above power control system is only applicable to the case of single-channel power input and single-channel power output.

[0028] Figure 2 A schematic diagram of the structure of another power control system provided in one embodiment of the present application.

[0029] refer to Figure 2In some embodiments, in order to reduce the overall application cost of the power control system, multiple relays can be provided to improve the control capability of the control circuit board. Specifically, the power input is transmitted to different relays through the control circuit board, so that the power output is respectively performed through multiple relays. In this way, the power control system can simultaneously control the conduction and disconnection of multiple power outputs to reduce the average cost of each relay.

[0030] The above-mentioned power control system has only one power input and also has a power output for controlling multiple relays. This design has fewer wiring ports, and only one power input is needed to power the circuit where the multiple relays are located. All components are integrated into one chassis, and the average cost of each relay is reduced. However, the above power control system still has many defects: 1) One power input is used while multiple power outputs are used. For high-power equipment, such as aerators or water pumps widely used in agriculture, the current of multiple high-power equipment is concentrated on a single input port. The current of the input port is very large, which can easily cause the device to heat up and cause port damage, and there are safety hazards; 2) All equipment is integrated into a control cabinet. If one relay burns out, it may also affect the damage of other relays in the chassis, and maintenance and replacement will also increase costs; 3) During use, different users require different numbers of electrical equipment. Even if the user only needs to control one electrical equipment, he needs to pay the switching cost of multiple relays at the same time, which increases the application cost; 4) The number of input ports is fixed and cannot be expanded. When new equipment needs to be added, the modification cost increases; 5) For the same power control system, the corresponding multiple relays have the same power. If electrical equipment with different powers needs to be used, a new power control system needs to be purchased.

[0031] The embodiment of the present application provides a power control system, which at least helps to reduce the cost of the power control system and improve the flexibility of use of the power control system.

[0032] The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be understood by those skilled in the art that in the embodiments of the present application, many technical details are provided in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed for protection in the present application can be implemented. The power control system provided in the present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0033] Figure 3 A schematic diagram of the structure of a power control system provided in one embodiment of the present application; Figure 4 for Figure 3 Schematic diagram of the equivalent circuit structure of the power control system.

[0034] Combined with reference Figure 3 and Figure 4 The power control system includes: a main control gateway 101, the main control gateway 101 is connected to a server (not shown in the figure) for communication, the main control gateway 101 includes a total output terminal 111, and the main control gateway 101 responds to the control command issued by the server and sends a control signal from the total output terminal 111; a plurality of intelligent switches 102, the intelligent switch 102 includes a control circuit board and a relay, the control circuit board is connected to the relay, the control circuit board controls the conduction or disconnection of the relay, the control circuit board has a signal input terminal 112 and a signal output terminal 122, the signal output terminal 122 corresponding to one intelligent switch 102 is connected to the signal input terminal 112 corresponding to another intelligent switch 102 through a control line 130, and the plurality of intelligent switches 102 are connected in series in sequence, and the signal input terminal 112 corresponding to the first intelligent switch 102 in series is connected to the total output terminal 111 of the main control gateway 101 through the control line 130.

[0035] In the power control system provided in the embodiment of the present application, the master control gateway 101 is connected to the server for communication, the master control gateway 101 can send signals to the server or receive signals from the server, the user can obtain the signal transmitted by the master control gateway 101 through the server or send a control command to the master control gateway 101, and the master control gateway 101 can respond to the control command of the server and send a control signal from the total output terminal 111. A plurality of intelligent switches 102 are connected in series in sequence, and the signal input terminal 112 corresponding to the first intelligent switch 102 in series is connected to the total output terminal 111 of the master control gateway 101 through the control line 130, so that the control signal can be transmitted to the control circuit board corresponding to the first intelligent switch 102 through the control line 130, thereby realizing the remote switching or monitoring of the relay of the first intelligent switch 102. If the second smart switch 102 needs to be remotely controlled, a control signal can also be sent through the total output terminal 111 of the master control gateway 101, and after being transmitted to the location of the first smart switch 102 via the control line 130 between the master control gateway 101 and the first smart switch 102, it is then transmitted to the control circuit board corresponding to the second smart switch 102 via the control line 130 between the first smart switch 102 and the second smart switch 102, thereby realizing remote switching or monitoring of the relay of the second smart switch 102. When the number of connected smart switches 102 is greater, the control signal is gradually transmitted in this way. Since the smart switches 102 are connected in series in sequence, each smart switch 102 can be connected to another smart switch 102 closest to it according to its location. The number of smart switches 102 is more flexible, and it is more convenient to add or remove smart switches 102, and it is not limited by the number of total output terminals 111 of the master control gateway 101. The relay of each intelligent switch 102 can be set in an independent circuit structure to control the on or off of the power supply in the respective circuit structure. There is no need to separate multiple power output ends from the same power input end, so as to reduce the pressure of power input or power output of the power control system and reduce the complexity of circuit design.

[0036] In some embodiments, the communication connection between the master gateway and the server may be a wireless connection or a wired connection.

[0037] It should be noted that in Figure 3 In the figure, the master control gateway 101 and the smart switch 102 are arranged in sequence as an example for illustration, which does not mean that there is a rigid connection between the master control gateway 101 and the smart switch 102. The master control gateway 101 and the smart switch 102 can be installed separately at their respective locations and connected by the control line 130.

[0038] exist Figure 3 and Figure 4In the embodiment, the number of the smart switches 102 is 2 as an example, which does not constitute a limitation on the number of the smart switches 102. In some embodiments, the number of the smart switches 102 may also be 3, 5, or 8.

[0039] Figure 5 for Figure 3 Main view of the China Electric Power Control System.

[0040] Combined with reference Figure 5 and Figure 4 In some embodiments, each relay in the smart switch 102 may have its own power input terminal and power output terminal, so as to realize the power supply conduction or shutoff in its own circuit structure. For example, when the relay in the smart switch 102 is in the on state, No. 1 to No. 3, No. 4 to No. 6, and No. 7 to No. 9 are all in the on state; when the relay in the smart switch 102 is in the off state, No. 1 to No. 3, No. 4 to No. 6, and No. 7 to No. 9 are all in the off state, so as to realize the conduction or shutoff of three-way voltage and current.

[0041] In some embodiments, the working voltages corresponding to the relays of different smart switches 102 may be the same or different. It is understandable that each smart switch 102 has its own power input and power output, and the working voltage of the relay can be selected according to the use equipment in the corresponding circuit structure to match the different or same use equipment at different locations, thereby improving the use flexibility of the power control system.

[0042] In some embodiments, a fuse is provided between the power input terminal of the relay and the power output terminal of the relay. When the current between the power input terminal and the power output terminal of the relay in the intelligent switch exceeds the safety range, the fuse will blow, thus protecting the relay from damage.

[0043] Figure 6 A schematic diagram of an equivalent circuit structure of another power control system provided in one embodiment of the present application.

[0044] refer to Figure 6 In some embodiments, the master control gateway 101 may include multiple total output terminals 111, and multiple groups of series-connected smart switches 102 are respectively connected to different total output terminals 111. In this way, when different smart switches 102 are located at different positions relative to the master control gateway 101, the same master control gateway 101 can also simultaneously turn on or off the relays corresponding to the multiple groups of smart switches 102, thereby improving the control capability of the power control system.

[0045] In some embodiments, the control line may include: a data line, the data line includes an output data line and a receiving data line, the output data line is used to send data information to the master control gateway, the receiving data line is used to receive the control signal sent by the master control gateway, and each intelligent switch is connected in parallel with the master control gateway through the output data line and the receiving data line. In other words, for the signal input end and the signal output end of the same intelligent switch, the output data line and the receiving data line are directly connected, the control circuit board of the intelligent switch obtains the signal related to the intelligent switch in the receiving data line through the signal input end, and outputs the corresponding information of the intelligent switch through the output data line connected to the signal input end.

[0046] In some embodiments, the control line may also include: an enable signal line, through which the smart switch is connected in series with the master control gateway, and the master control gateway sends an enable signal or a disable signal from the total output terminal through the enable signal line, and the smart switch responds to the enable signal by feeding back address information to the master control gateway through the output data line, and the address information is represented as the address corresponding to the smart switch, and the smart switch does not respond when receiving the disable signal. In other words, for a smart switch, the control circuit board obtains information from the enable signal line through the signal input terminal, and after being processed by the control circuit board, it is transmitted to the next smart switch through the signal output terminal, so that the signal in the enable signal line can only be transmitted step by step through the arrangement order of the smart switches.

[0047] In some embodiments, the master control gateway may autonomously send out an enable signal or a disable signal, or the master control gateway may send out an enable signal or a disable signal in response to a command from a server.

[0048] In some embodiments, when the signal input end of the intelligent switch receives an enable signal, the signal output end of the intelligent switch outputs an enable signal or a disable signal; when the signal input end of the intelligent switch receives a disable signal, the signal output end of the intelligent switch does not output a signal. For example, the enable signal is "1" and the disable signal is "0". When the intelligent switch receives "1", it can send "1" or "0" to the next intelligent switch. After the master control gateway completes the initialization, the initial signals of all intelligent switches are defaulted to "0"; first, "1" is sent through the master control gateway, and the first intelligent switch responds to the command of "1" and feeds back the address A1 of the intelligent switch to the master control gateway. At this time, the first intelligent switch can send "0" or "1"; then the master control gateway sends a command to the first intelligent switch so that the first intelligent switch sends "1", and the second intelligent switch responds to the command of "1" and feeds back the address A2 of the intelligent switch to the master control gateway. At this time, the second intelligent switch can send "0" or "1". By analogy, the master control gateway can scan the address information corresponding to all the smart switches in series. When a control signal needs to be sent to a specific smart switch again, it can directly locate the smart switch through the address information and send a control signal to it, so as to directly control the specific smart switch.

[0049] In some embodiments, the control line may also include: a power line, the power line includes a positive power line and a negative power line, the main control gateway provides power to the control circuit board through the positive power line and the negative power line, and each intelligent switch is connected in parallel with the main control gateway through the positive power line and the negative power line. In other words, for the signal input end and the signal output end of the same intelligent switch, the positive power line and the negative power line are directly connected, and the control circuit board of the intelligent switch obtains the power provided by the positive power line and the negative power line through the signal input end to work, and the positive power line and the negative power line are directly transmitted to the next intelligent switch through the signal output end. In this way, the control circuit board in the intelligent switch can work through the power provided by the main control gateway, which is conducive to directly controlling the operation or non-operation of each intelligent switch through the main control gateway.

[0050] For example, refer to Figure 3 and Figure 5 The master control gateway 101 may have a power input terminal 121 and a power output terminal 131, and the power input terminal 121 and the power output terminal 131 are used to connect the power supply for the control circuit board of the intelligent switch.

[0051] In some embodiments, reference Figure 3 and Figure 5, the master control gateway 101 may also include a power switch 141, which is used to control the conduction and disconnection of the positive power line and the negative power line. In this way, when the power switch 141 of the master control gateway 101 is turned off, the control circuit boards of each intelligent switch 102 are disconnected from the power supply and cannot work, and the relays of each intelligent switch 102 can no longer be controlled by the master control gateway 101. The relays of each intelligent switch 102 can all maintain the state before the control circuit board is powered off to avoid affecting the circuit operation of each intelligent switch 102, or the relays in each intelligent switch 102 can all be converted to the disconnected state to avoid safety hazards caused by the uncontrolled intelligent switch 102.

[0052] In some embodiments, the relay can be set as a normally open relay. In this way, when the smart switch is disconnected from the power supply, the relay can be directly turned off, and no path can be formed between the power input end and the power output end of the relay, so that the corresponding circuit structure is disconnected from the respective power supply, so as to avoid safety hazards caused by the smart switch being out of control.

[0053] In some embodiments, the control circuit boards of the various intelligent switches may also be equipped with respective independent power supplies to facilitate the individual shutdown and use of the various intelligent switches.

[0054] In the power control system provided in the embodiment of the present application, the master control gateway 101 is connected to the server for communication, the master control gateway 101 can send signals to the server or receive signals from the server, the user can obtain the signal transmitted by the master control gateway 101 through the server or send a control command to the master control gateway 101, and the master control gateway 101 can respond to the control command of the server and send a control signal from the total output terminal 111. A plurality of intelligent switches 102 are connected in series in sequence, and the signal input terminal 112 corresponding to the first intelligent switch 102 in series is connected to the total output terminal 111 of the master control gateway 101 through the control line 130, so that the control signal can be transmitted to the control circuit board corresponding to the first intelligent switch 102 through the control line 130, thereby realizing the remote switching or monitoring of the relay of the first intelligent switch 102. If the second smart switch 102 needs to be remotely controlled, a control signal can also be sent through the total output terminal 111 of the master control gateway 101, and after being transmitted to the location of the first smart switch 102 via the control line 130 between the master control gateway 101 and the first smart switch 102, it is then transmitted to the control circuit board corresponding to the second smart switch 102 via the control line 130 between the first smart switch 102 and the second smart switch 102, thereby realizing remote switching or monitoring of the relay of the second smart switch 102. When the number of connected smart switches 102 is greater, the control signal is gradually transmitted in this way. Since the smart switches 102 are connected in series in sequence, each smart switch 102 can be connected to another smart switch 102 closest to it according to its location. The number of smart switches 102 is more flexible, and it is more convenient to add or remove smart switches 102, and it is not limited by the number of total output terminals 111 of the master control gateway 101. The relay of each intelligent switch 102 can be set in an independent circuit structure to control the on or off of the power supply in the respective circuit structure. There is no need to separate multiple power output ends from the same power input end, so as to reduce the pressure of power input or power output of the power control system and reduce the complexity of circuit design.

[0055] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present application, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present application.

Claims

1. A power control system, characterized in that: include: A master control gateway, the master control gateway is in communication with the server, the master control gateway comprises a main output terminal, and the master control gateway sends a control signal from the main output terminal in response to a control command sent by the server; A plurality of intelligent switches, wherein the intelligent switches include a control circuit board and a relay, wherein the control circuit board is connected to the relay, and the control circuit board controls the conduction or disconnection of the relay, wherein the control circuit board has a signal input terminal and a signal output terminal, wherein the signal output terminal corresponding to one of the intelligent switches is connected to the signal input terminal corresponding to another of the intelligent switches through a control line, and wherein the plurality of intelligent switches are connected in series in sequence, and the signal input terminal corresponding to the first intelligent switch in the series is connected to the total output terminal of the master control gateway through the control line.

2. The power control system according to claim 1, characterized in that: The control line includes: Data line, the data line includes an output data line and a receiving data line, the output data line is used to send data information to the master control gateway, the receiving data line is used to receive the control signal sent by the master control gateway, each of the smart switches is connected in parallel with the master control gateway through the output data line and the receiving data line.

3. The power control system according to claim 2, characterized in that: The control line also includes: an enable signal line, through which the intelligent switch is connected in series with the master control gateway, and the master control gateway sends an enable signal or a disable signal from the main output end through the enable signal line. The intelligent switch responds to the enable signal and feeds back address information to the master control gateway through the output data line, and the address information is represented as the address corresponding to the intelligent switch, and the intelligent switch does not respond when receiving the disable signal.

4. The power control system according to claim 3, characterized in that: When the signal input end of the intelligent switch receives the enable signal, the signal output end of the intelligent switch outputs the enable signal or the disable signal; when the signal input end of the intelligent switch receives the disable signal, the signal output end of the intelligent switch does not output a signal.

5. The power control system according to claim 1, characterized in that: The control line includes: A power line, the power line includes a positive power line and a negative power line, the master control gateway provides power to the control circuit board through the positive power line and the negative power line, and each of the smart switches is connected in parallel with the master control gateway through the positive power line and the negative power line.

6. The power control system according to claim 5, characterized in that: The master control gateway further includes a power switch, and the power switch is used to control the conduction and disconnection of the positive power line and the negative power line.

7. The power control system according to claim 6, characterized in that: The relay is a normally open relay.

8. The power control system according to claim 1, characterized in that: The master control gateway includes a plurality of the main output terminals, and a plurality of groups of the intelligent switches connected in series are respectively connected to different main output terminals.

9. The power control system according to claim 1, characterized in that: A fuse is arranged between the power input end of the relay and the power output end of the relay.

10. The power control system according to claim 1, characterized in that: The working voltages corresponding to the relays of different intelligent switches are the same or different.

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