Multi-purpose electric appliance control system sharing power line

Abstract

The utility model discloses a multipurpose electric appliance control system sharing a power line. The system comprises a control main board, a plurality of serial controllers, a serial cable and a button module. The key module sends a control signal to the control main board through the control key; the control main board is connected in series with a plurality of serial controllers through serial cables; the control main board realizes power supply and signal control on the serial controller through a serial cable; and the serial controller performs power supply control on the electric appliances connected with the serial controller. According to the utility model, by adopting a serial wiring mode, the decoration construction cost and the wiring complexity are reduced, so that a plurality of electric devices can be uniformly controlled, and each independent electric device or a combination of a plurality of electric devices in the system can be flexibly controlled; and even all electric equipment can be centrally supplied with power, so that the use amount of power cables is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance control, and more specifically, to a multi-purpose electrical appliance control system with a shared power line. Background Art

[0002] Production and life are inseparable from various electrical appliances, and no matter what kind of electrical appliances, they need corresponding power input and switch systems to control them. However, the controllers of these electrical appliances are mostly controlled individually, with poor compatibility and scalability; and the centralized control system brings many limitations, resulting in inflexible wiring and electrical appliance configuration. Therefore, flexible multi-electrical appliance control systems are becoming more and more popular.

[0003] At present, the RS485 serial communication bus is widely used in industrial control, automation systems and embedded devices to connect various electrical equipment such as air conditioners, lighting, security systems, etc. for data transmission and equipment control. Although RS485 has many advantages, such as long-distance transmission capability, strong anti-interference ability and multi-point communication, there are many problems in practical applications. First, although RS485 supports multi-point communication, it becomes complicated to manage the communication between multiple devices, especially when master-slave communication or arbitration between devices is required, which will cause delays in the case of bus contention and cannot realize complex network topology and large-scale equipment connection. Secondly, RS485 devices need to share a ground wire. If the ground potential difference is too large, it will cause communication errors or equipment damage. This problem of ground potential difference is particularly prominent in long-distance transmission. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a multi-electrical appliance control system with a shared power line, the system comprising: a control main board, a plurality of serial controllers, serial cables, and a key module;

[0005] The button module sends a control signal to the main control board through the control button;

[0006] The control main board is serially connected to a plurality of serial controllers via serial cables; the control main board realizes power supply and signal control to the serial controllers via the serial cables;

[0007] The serial controller controls the power supply to the electrical appliances connected thereto.

[0008] Preferably, the serial cable includes a power line and a signal bus;

[0009] The power line is a double-wire AC power supply line;

[0010] The signal bus is a twisted pair of CAN signal lines.

[0011] Preferably, the control main board is provided with a power line control mechanism and a CAN signal sending mechanism;

[0012] The power line control mechanism includes a first power supply line port and a power relay;

[0013] The input end of the first power supply line port is connected to an external power line, and the output port is connected to the input end of the first power relay;

[0014] The output end of the first power relay is connected to the serial controller;

[0015] The CAN signal sending mechanism includes a first signal bus port and a first CAN level circuit;

[0016] The input end of the first signal bus port is connected to the keyboard module, and the output end is connected to the input end of the first CAN level circuit or the serial controller;

[0017] The output end of the first CAN level circuit is communicatively connected to the first power relay to control the opening and closing of the first power relay;

[0018] The output end of the first CAN level circuit is also connected to the serial controller to realize the control of the serial controller.

[0019] Preferably, the serial controller includes a second power supply line port, an electrical appliance control mechanism, and a CAN signal receiving mechanism;

[0020] The electrical appliance control mechanism includes an electrical appliance port and a second power relay;

[0021] The CAN signal receiving mechanism comprises a second signal bus port and a second CAN level circuit;

[0022] The input end of the second power supply line port is connected to the first power relay of the control main board or the second power relay of the upper-level serial controller;

[0023] The output end of the second power supply line port is connected to the input end of the second power relay or the next-level serial controller;

[0024] The output end of the second power relay is connected to the input end of the electrical appliance port;

[0025] The output end of the electrical appliance port is connected to the electrical appliance;

[0026] The input end of the second signal bus port is connected to the output end of the first CAN level circuit in the control main board or the output end of the second signal bus of the upper-level serial controller;

[0027] The output end of the second signal bus port is connected to the input end of the second CAN level circuit or the input end of the second signal bus port of the next-level serial controller;

[0028] The output end of the second CAN level circuit is communicatively connected to the second power relay to control the opening and closing of the second power relay.

[0029] Preferably, each of the serial controllers is provided with a corresponding ID.

[0030] Preferably, the IDs of the plurality of serial controllers are set according to the arrangement order of the serial controllers.

[0031] Preferably, the serial controller further comprises a control status recording module; when the serial controller receives a corresponding ID instruction signal, the operation status of the electrical appliance is recorded according to the ID control instruction.

[0032] Preferably, the number of the serial controllers is 1 to 110.

[0033] Preferably, the power line is a double-wire 220V AC power line.

[0034] Preferably, the key module is a touch screen or a key matrix.

[0035] Compared with the prior art, the beneficial effects of the technical solution of the utility model are as follows: the utility model provides a multi-electrical appliance control system with a shared power line, which reduces the cost of decoration and construction and the complexity of wiring by adopting a serial wiring method, so that multiple electrical devices can be controlled uniformly, and each individual electrical device or a combination of several electrical devices in the system can be flexibly controlled, and even all electrical devices can be centrally powered to reduce the use of power cables. It solves the current problem of cable planning when installing and arranging multiple electrical devices in the market, reduces the consumption of power cables, provides stable and reliable wired remote control, and is compatible with various types and specifications of electrical devices, while meeting the requirements of access to less than 110 electrical devices and a total system line length of less than 1,000 meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a physical picture of a multi-electric appliance control system with a shared power line as described in Example 1.

[0037] Figure 2 This is a block diagram of a multi-electric appliance control system with a shared power line as described in Example 2.

[0038] Figure 3 This is the serial cable connection diagram described in Example 2.

[0039] Figure 4 This is a schematic diagram of the structure of the control main board described in Example 2.

[0040] Figure 5 This is a schematic diagram of the structure of the serial controller described in Example 2.

[0041] In the figure, 1- main control board, 2- serial controller, 3- serial cable, 4- key module, 5- electrical appliances, 6- external power line, 3.1- power line, 3.2- signal bus. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below. Example 1

[0044] like Figure 1 As shown, this embodiment discloses a multi-electric appliance control system with a shared power line, the system comprising: a control main board 1, a plurality of serial controllers 2, a serial cable 3, and a key module 4;

[0045] The button module 4 sends a control signal to the control main board 1 through the control button;

[0046] The control main board 1 is serially connected to a plurality of serial controllers 2 via a serial cable 3; the control main board 1 implements power supply and signal control to the serial controllers 2 via the serial cable 3;

[0047] The serial controller 2 controls the power supply to the electrical appliances 5 connected thereto.

[0048] The control main board 1 introduces electricity into the multi-electric appliance control system through the external power line 6.

[0049] According to an embodiment of the utility model, the serial cable 3 includes a power line 3.1 and a signal bus 3.2;

[0050] The power line 3.1 is a double-wire AC power supply line;

[0051] The signal bus 3.2 is a twisted pair of CAN signal lines.

[0052] In this embodiment, the serial bus topology structure can bring better performance to the multi-electrical control system by serially connecting the control main board 1 with a plurality of serial controllers 2. This overcomes the problems in traditional multi-electrical control applications, such as irregular topologies such as star and tree structures that easily cause signal reflection and interference leading to communication failure, and daisy chain topologies that limit transmission distance.

[0053] like Figure 2 As shown, this embodiment discloses a multi-electric appliance control system with a shared power line, the system comprising: a control main board, a plurality of serial controllers, serial cables, and a key module;

[0054] The button module sends a control signal to the main control board through the control button;

[0055] The control main board is serially connected to a plurality of serial controllers via serial cables; the control main board realizes power supply and signal control to the serial controllers via the serial cables;

[0056] The serial controller controls the power supply to the electrical appliances connected thereto.

[0057] According to an embodiment of the utility model, the serial cable includes a power line and a signal bus;

[0058] The power line is a double-wire AC power supply line;

[0059] The signal bus is a twisted pair of CAN signal lines.

[0060] It should be noted that the power line of the serial cable is a double-wire AC power supply line with a relatively high voltage in production and life (usually 220V in China), and the signal bus of the serial cable is a twisted pair of CAN signal lines.

[0061] like Figure 3 As shown, the serial controllers are connected in series through serial cables; one end of the serial controller is connected to one of the two wires of the AC power supply line, the other end of the serial controller is connected to the input of the electrical appliance, and the output end of the electrical appliance is connected to the other of the two wires of the AC power supply line, so that the serial controller controls the corresponding electrical appliances. In the figure, in order to distinguish different serial controllers, serial controller 1, serial controller 2...serial controller n are used to represent different serial controllers respectively. Similarly, in order to distinguish different electrical appliances, electrical appliance 1, electrical appliance 2...electrical appliance n are used to represent different electrical appliances respectively.

[0062] Each serial controller is connected to the main board through a CAN signal line twisted pair.

[0063] According to the embodiment of the utility model, the control main board is provided with a power line control mechanism and a CAN signal sending mechanism;

[0064] The power line control mechanism includes a first power supply line port and a power relay;

[0065] The input end of the first power supply line port is connected to an external power line, and the output port is connected to the input end of the first power relay;

[0066] The output end of the first power relay is connected to the serial controller;

[0067] The CAN signal sending mechanism includes a first signal bus port and a first CAN level circuit;

[0068] The input end of the first signal bus port is connected to the keyboard module, and the output end is connected to the input end of the first CAN level circuit or the serial controller;

[0069] The output end of the first CAN level circuit is communicatively connected to the first power relay to control the opening and closing of the first power relay;

[0070] The output end of the first CAN level circuit is also connected to the serial controller to realize the control of the serial controller.

[0071] It should be noted that if Figure 4 As shown, the control main board is provided with a power line control mechanism and a CAN signal sending mechanism, the power line control mechanism includes a first power relay and a first power line connection port, the CAN signal sending mechanism includes a first CAN level circuit and a signal first bus connection port, and the control main board is connected to a touch screen or a key matrix as a key module. The control main board serves as the master controller of the system, and plays the role of master power supply control, sending CAN signal instructions and operating interface.

[0072] According to an embodiment of the utility model, the serial controller includes a second power supply line port, an electrical appliance control mechanism, and a CAN signal receiving mechanism;

[0073] The electrical appliance control mechanism includes an electrical appliance port and a second power relay;

[0074] The CAN signal receiving mechanism comprises a second signal bus port and a second CAN level circuit;

[0075] The input end of the second power supply line port is connected to the first power relay of the control main board or the second power relay of the upper-level serial controller;

[0076] The output end of the second power supply line port is connected to the input end of the second power relay or the next-level serial controller;

[0077] The output end of the second power relay is connected to the input end of the electrical appliance port;

[0078] The output end of the electrical appliance port is connected to the electrical appliance;

[0079] The input end of the second signal bus port is connected to the output end of the first CAN level circuit in the control main board or the output end of the second signal bus of the upper-level serial controller;

[0080] The output end of the second signal bus port is connected to the input end of the second CAN level circuit or the input end of the second signal bus port of the next-level serial controller;

[0081] The output end of the second CAN level circuit is communicatively connected to the second power relay to control the opening and closing of the second power relay.

[0082] It should be noted that if Figure 5 As shown, the serial controller is provided with a power line port, an electrical appliance control mechanism and a CAN signal receiving mechanism, the electrical appliance control mechanism includes a second power relay and a second electrical appliance connection port, and the CAN signal receiving mechanism includes a second CAN level circuit and a second signal bus connection port. The serial controller, as a serial component of the system, plays the role of CAN signal reception and instruction execution.

[0083] The second power supply line port on the serial controller includes an input port and an output port, wherein the input port is connected to the control main board or the previous serial controller, and the output port can be connected to the next serial controller. This enables the control main board to output power to the serial controller on the system, and the serial controller is connected to the system as a serial component and can be powered by connecting to the power supply line.

[0084] The second signal bus connection port on the serial controller includes an input port and an output port, wherein the input port is connected to the control main board or the previous serial controller, and the output port can be connected to the next serial controller. This enables the control main board to output signal instructions to the serial controller on the system, and the serial controller is connected to the system as a serial component, and the access signal bus can communicate.

[0085] During the operation of the software code of the control main board, if the key module connected thereto is pressed, the CAN signal sending mechanism sends a command signal, and the command signal is transmitted to the signal bus so that all serial controllers receive it. Its function is that the user can directly operate the system through the touch screen or keys, thereby enhancing the human-computer interaction.

[0086] According to an embodiment of the utility model, each of the serial controllers is provided with a corresponding ID.

[0087] According to an embodiment of the present invention, the IDs of the plurality of serial controllers are set according to the arrangement order of the serial controllers.

[0088] It should be noted that the serial controllers are all provided with corresponding IDs, and the command signals transmitted by the signal bus contain specific IDs, which are assigned by the control board according to the keys pressed by the key module. Its function is that the user can make the system perform corresponding specific operations through key input.

[0089] The serial controller responds to the received command signal of the corresponding ID to make the electrical appliance control mechanism produce a control action. The principle is that each serial controller on the system has its own specific ID, and they only respond to the command signal of the corresponding ID to perform the operation of the electrical appliance control.

[0090] The serial controller includes the control status record of the electrical appliance control mechanism. When the serial controller responds to the received instruction signal of the corresponding ID, it executes the corresponding electrical appliance control action according to the control status record. Its function is to record the control status of the electrical appliance, so that the system can intelligently process the operation to be performed later and enhance the flexibility of the system.

[0091] During operation of this embodiment, the main control board controls the main power supply or transmits data on the serial cable according to the input of the key module, and multiple serial controllers are connected to the system so that each serial controller can perform electrical appliance control operations according to corresponding instructions. Example

[0092] This embodiment discloses a control system for multiple electrical appliances with a shared power line. This embodiment includes all the technical features described in Example 2, which will not be described in detail here. As a specific embodiment, different from Example 2, this embodiment also includes the following technical features:

[0093] The serial controller also includes a control status recording module; when the serial controller receives a corresponding ID instruction signal, the operation status of the electrical appliance is recorded according to the ID control instruction.

[0094] The number of the serial controllers is 1 to 110.

[0095] The power line is a double-wire 220V AC power supply line.

[0096] This embodiment can not only uniformly control multiple electrical devices, but also flexibly control each individual electrical device or a combination of several electrical devices in the system, and can even be compatible with electrical devices of various types and specifications, while meeting the requirements of access to less than 110 electrical devices and a total system line length of less than 1,000 meters. This embodiment solves the current problem of cable planning when installing and arranging multiple electrical devices in the market, greatly reduces the consumption of power cables and the amount of power cable wiring construction work, effectively reduces the overall cost, and can provide stable and reliable wired remote control.

[0097] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

Claims

1. A multi-electrical appliance control system with a shared power line, characterized in that: The system includes: a control main board, several serial controllers, serial cables, and a key module; The button module sends a control signal to the main control board through the control button; The control main board is serially connected to a plurality of serial controllers via serial cables; the control main board realizes power supply and signal control to the serial controllers via the serial cables; The serial controller controls the power supply to the electrical appliances connected thereto.

2. A multi-electrical appliance control system with a shared power line according to claim 1, characterized in that: The serial cable includes a power line and a signal bus; The power line is a double-wire AC power supply line; The signal bus is a twisted pair of CAN signal lines.

3. A multi-electrical appliance control system with a shared power line according to claim 2, characterized in that: The control main board is provided with a power line control mechanism and a CAN signal sending mechanism; The power line control mechanism includes a first power supply line port and a power relay; The input end of the first power supply line port is connected to an external power line, and the output port is connected to the input end of the first power relay; The output end of the first power relay is connected to the serial controller; The CAN signal sending mechanism includes a first signal bus port and a first CAN level circuit; The input end of the first signal bus port is connected to the keyboard module, and the output end is connected to the input end of the first CAN level circuit or the serial controller; The output end of the first CAN level circuit is communicatively connected to the first power relay to control the opening and closing of the first power relay; The output end of the first CAN level circuit is also connected to the serial controller to realize the control of the serial controller.

4. A multi-electrical appliance control system with a shared power line according to claim 3, characterized in that: The serial controller includes a second power supply line port, an electrical appliance control mechanism, and a CAN signal receiving mechanism; The electrical appliance control mechanism includes an electrical appliance port and a second power relay; The CAN signal receiving mechanism comprises a second signal bus port and a second CAN level circuit; The input end of the second power supply line port is connected to the first power relay of the control main board or the second power relay of the upper-level serial controller; The output end of the second power supply line port is connected to the input end of the second power relay or the next-level serial controller; The output end of the second power relay is connected to the input end of the electrical appliance port; The output end of the electrical appliance port is connected to the electrical appliance; The input end of the second signal bus port is connected to the output end of the first CAN level circuit in the control main board or the output end of the second signal bus of the upper-level serial controller; The output end of the second signal bus port is connected to the input end of the second CAN level circuit or the input end of the second signal bus port of the next-level serial controller; The output end of the second CAN level circuit is communicatively connected to the second power relay to control the opening and closing of the second power relay.

5. A multi-electrical appliance control system with a shared power line according to claim 4, characterized in that: The serial controllers are all provided with corresponding IDs.

6. A multi-electrical appliance control system with a shared power line according to claim 5, characterized in that: The IDs of the plurality of serial controllers are set according to the arrangement order of the serial controllers.

7. A control system for multiple electrical appliances with a common power line according to claim 6, characterized in that: The serial controller also includes a control status recording module; when the serial controller receives a corresponding ID instruction signal, the operation status of the electrical appliance is recorded according to the ID control instruction.

8. A control system for multiple electrical appliances sharing a power line according to claim 7, characterized in that: The number of the serial controllers is 1 to 110.

9. A multi-electrical appliance control system with a shared power line according to claim 8, characterized in that: The power line is a double-wire 220V AC power supply line.

10. A multi-electrical appliance control system with a shared power line according to claim 9, characterized in that: The key module is a touch screen or a key matrix.

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