CN212135173U

CN212135173U - Multi-device joint control circuit based on modulation alternating current waveform

Info

Publication number: CN212135173U
Application number: CN202020154990.5U
Authority: CN
Inventors: 郑文忠
Original assignee: Shenzhen Ogemray Technology Co ltd
Current assignee: Shenzhen Ogemray Technology Co ltd
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2020-12-11
Anticipated expiration: 2030-02-07

Abstract

The utility model discloses a multi-device joint control circuit based on modulation alternating current waveform, which comprises 1 or a plurality of control devices; the control device comprises a single chip microcomputer module, an AC/DC power supply module, an alternating current reference detection module, a relay control module, an alternating current waveform modulation module, a cooperative control output modulation module and a cooperative control input detection module; the control device comprises four wiring terminals, wherein two of the four wiring terminals are a zero line input N terminal and a live line input L terminal which are respectively used for connecting a commercial power AC power supply; one of the IN-OUT terminals is connected with the auxiliary control input detection module and the auxiliary control output modulation module; one is an Lx terminal for connecting the output of the AC waveform modulation module and externally connecting the controlled power device. The utility model discloses an above-mentioned circuit structure that contains the interface terminal in only uses ordinary power line connection to realize that a plurality of controlling means are to single or a plurality of controlled power consumption device's antithetical couplet accuse and antithetical couplet accent, and very big degree has reduced pre-sale, after-sale service cost of dealer and engineering merchant.

Description

Multi-device joint control circuit based on modulation alternating current waveform

Technical Field

The utility model relates to a control circuit of controlled power consumption device specifically is a many devices allies oneself with accuse circuit based on modulation alternating current wave form.

Background

At present, the simplest control devices commonly control one or more controlled electric devices, and one application of the simplest control devices is that two or three double-control wall panel switches are connected in a double-control mode and then control the same lamp or a group of lamps to be turned on and off; with the development of science and technology and the upgrading of the application requirements of people, the control technology of a plurality of control devices on connected controlled electric devices is gradually upgraded from simple on-off control to joint adjustment, joint control and even intelligent control technology which can realize the control of various working states, for example, a user can carry out the complex control of multi-level brightness adjustment or multi-level color temperature adjustment on connected lamps by a plurality of connected panel switches; at present, in order to realize complex control of working states of connected controlled electric devices by a plurality of control devices, technologies of weak current cable connection or wireless signal connection are generally adopted, the technologies basically require an installer or a user to perform related pairing connection on the devices before normal use, complexity and construction difficulty of pairing connection are increased sharply along with increase of the number of the devices, problems of signal attenuation, signal interference and the like are faced no matter the weak current cable connection or the wireless signal connection is adopted, stability and reliability of the existing control devices in the market at present face little challenges, and the problems become direct reasons for rejection of cooperation and customer return in practical application.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary of embodiments of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that the following summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

In order to solve the technical problem, the utility model provides a multi-device joint control circuit based on modulation alternating current waveform, a plurality of controlling means that link to each other through ordinary electric wire carry out alone or coordinated control's circuit structure to the operating condition of the controlled power consumption device or devices of common connection, especially when someone is for controlling a plurality of controlling means that change alternating current sine wave waveform and come the coordinated control that link to each other by ordinary electric wire through agreed regulation and control instruction modulation during the input, and then in order to change the technique and the method of the common continuous controlled device operating condition of a plurality of controlling means.

According to one aspect of the application, a multi-device joint control circuit based on modulation of alternating current waveforms is provided, and comprises a plurality of (1 or more) control devices, wherein each control device comprises a single chip microcomputer module, an AC/DC power supply module, an alternating current reference detection module, a relay control module, an alternating current waveform modulation module, a coordination control output modulation module and a coordination control input detection module, and the AC/DC power supply module, the alternating current reference detection module, the relay control module, the alternating current waveform modulation module, the coordination control output modulation module and the coordination control input detection module are electrically connected with the single chip microcomputer module;

the AC/DC power supply module is used for converting alternating current into low-voltage direct current to supply power to each circuit; the alternating current reference detection module is used for detecting the zero crossing point moment of the alternating current sine wave; the output of the alternating current waveform modulation module is externally connected to a controlled power utilization device, and the alternating current waveform modulation module modulates a power alternating current sine wave into an appointed special-shaped waveform; the coordination control output modulation module modulates the power alternating current sine wave into an appointed special-shaped wave according to a control command sent by the single chip microcomputer module and transmits the wave to the coordination control input detection module of other control devices; the assistant control input detection module detects the signal sent to the assistant control input detection module and sends the detection output to the single chip microcomputer module; the input end of the assistant control input detection module is connected with the output end of the assistant control output modulation module and can be externally connected to the input end of the assistant control input detection module and the output end of the assistant control output modulation module of other control devices; the relay control module is used for receiving the control of the single chip microcomputer module to supply power or cut off the power to the controlled power utilization device and is matched with the cooperative control output modulation module to realize the transmission of control instructions.

The control device comprises four wiring terminals, wherein two of the four wiring terminals are a zero line input N terminal and a live line input L terminal which are respectively used for connecting a commercial power AC power supply; one of the IN-OUT terminals is connected with the auxiliary control input detection module and the auxiliary control output modulation module; one is an Lx terminal used for connecting the output of the alternating current waveform modulation module and externally connecting a controlled electric device; the internal circuit of the controlled electric device is connected with the Lx terminal, detects and demodulates a control command sent by the control device through the Lx terminal, and changes the working state of the controlled electric device according to the control command; in practical application, the N terminal may be mistakenly connected to a live line of a commercial AC power supply, the L terminal may be mistakenly connected to a neutral line of the commercial AC power supply, and the multi-device joint control circuit may work normally.

The alternating current reference detection module is connected with the live wire input L terminal at one end and the single chip microcomputer module at one end, can detect the zero crossing point moment of an alternating current sine wave on the live wire input L terminal and generate a pulse signal corresponding to the zero crossing point of the alternating current sine wave to be output to the single chip microcomputer module, and the single chip microcomputer module generates a control instruction by taking the zero crossing point pulse as a reference of the control instruction; one end of the alternating current waveform modulation module is connected with a live wire input L terminal, one end of the alternating current waveform modulation module is connected with the Lx terminal, the other end of the alternating current waveform modulation module is connected to the single chip microcomputer module, the alternating current waveform modulation module receives the control output of the single chip microcomputer module and switches and modulates the power alternating current from the live wire input L terminal, the modulated alternating current with the variable waveform or the unchanged waveform is output to the connected controlled power utilization device through the Lx terminal, and the controlled power utilization device can demodulate a control instruction for adjusting the working state of the controlled power utilization device through the power alternating current with the variable waveform while obtaining power supply; one end of the relay control module is connected with a live wire input L terminal, the other end of the relay control module is connected with an Lx terminal, and the other end of the relay control module is connected with the singlechip module and used for receiving the output of the singlechip to control the closing or opening of a dry contact of the relay; the auxiliary control output modulation module is connected with the live wire input L terminal, the IN-OUT terminal and the singlechip module at one end, is controlled by the singlechip module to modulate the waveform of the power alternating current IN an auxiliary control instruction mode and outputs the modulated special-shaped waveform alternating current to the IN-OUT terminal; one end of the assistant control input detection module is connected with the IN-OUT terminal, and the other end of the assistant control input detection module is connected with the singlechip module, and the assistant control input detection module detects the special-shaped waveform alternating current signals received by the IN-OUT terminal and outputs the detection result to the singlechip module for processing.

Further, controlling means still includes the wireless transceiver module with single chip module electric connection, and wireless transceiver module is as optional module, and it links to each other with other equipment or system long-rangely with wireless mode, borrows to realize remote control or give remote control equipment with the operating condition of device by cell-phone APP or intelligent pronunciation audio amplifier, and its output is connected to single chip module. The wireless transceiver module includes but is not limited to a WiFi module, a bluetooth module, a ZigBee module, a 2.4GHz module, a 433MHz module, an NB-IOT module and other wireless modules based on different communication protocols and communication technologies for remote control, and the wireless transceiver module can realize communication between the control device and the remote control device.

Furthermore, the control device also comprises a touch input module electrically connected with the singlechip and used for receiving touch induction or key-press type control input of a user.

The single chip microcomputer module receives the output signals of the touch input module or the optional wireless module or the auxiliary control input detection module, and divides the signals into three paths according to different received specific signals according to a predetermined program flow or a data format to respectively control the output of the auxiliary control output modulation module, the opening and closing of a relay dry contact of the control relay control module, and the alternating current waveform modulation output of the alternating current waveform modulation module, so as to control the power supply state and the working state of an externally connected controlled electric device or cooperatively control the working state of another control device and then cooperatively control the commonly connected controlled electric device.

Furthermore, the control device also comprises a display module electrically connected with the singlechip, and an LED lamp array or an LCD display screen can be adopted to provide necessary current control state related to the control device for a user.

As a possible solution, the ac waveform modulation module includes a switching circuit and a driving circuit; one end of the switching circuit is connected with the live wire input L terminal, and the other end of the switching circuit is connected with the Lx terminal, the switching circuit comprises a circuit structure formed by one or more unidirectional silicon controlled rectifiers, bidirectional silicon controlled rectifiers, IGBT devices, MOSFET devices, quick relays and the like, the switching circuit is mainly used for rapidly switching on and off alternating current from the live wire input L terminal according to a control signal sent by a single chip microcomputer and a driving circuit so that power alternating current sine waves are changed into special-shaped alternating current waveforms with a certain rule and then are output through the Lx terminal, and the special-shaped alternating current waveforms with the certain rule comprise control instructions for changing the working state of a controlled electric device connected with the Lx terminal. As a preferable scheme, the output of the relay control module and the output of the alternating current waveform modulation module are connected in parallel, that is, one end of each of the relay control module and the alternating current waveform modulation module is connected to the live wire input L terminal, and the other end of each of the relay control module and the alternating current waveform modulation module is connected to the Lx terminal; the relay control module and the alternating current waveform modulation module are both controlled by the single chip microcomputer module, and the single chip microcomputer module respectively controls the output of the relay control module and the output of the alternating current waveform modulation function through certain program logic; when the control device sends a control instruction to the connected controlled electric device according to the operation and control requirements of a user, the relay control module disconnects the relay dry contact of the control device, and the alternating current waveform modulation module is controlled by the single chip microcomputer to modulate an alternating current sine wave and output the alternating current sine wave to the connected controlled electric device through the Lx terminal; when a user does not operate the control device any more for a period of time, the singlechip controls the relay control module to close a dry contact of the relay, the live wire input L terminal is directly in short circuit conduction with the Lx terminal, and the commercial power alternating current from the live wire input L terminal is directly supplied to the connected controlled power utilization device through the closed relay dry contact and the Lx terminal; whether in the period of sending a control instruction or not, the controlled electric device obtains alternating current power supply through the Lx terminal, when the relay control module and the alternating current waveform modulation module are controlled by the single chip microcomputer to cut off the output, the controlled electric device connected with the Lx terminal does not obtain power supply any more; the relay control module and the alternating current waveform modulation module are connected in parallel with the live wire input L terminal and the Lx terminal, and the characteristics of relatively low cost of the relay and relatively low contact resistance of a dry contact of the relay can be fully utilized by combining the control logic of the single chip module, so that the construction cost of the whole circuit is effectively reduced, the power consumption of a device is reduced, the heat of the device is reduced, and the stability and the reliability of the circuit are ensured.

As a preferred scheme, the coordinated control output modulation module comprises a switch circuit and a drive circuit; one end of the switch circuit is connected with the live wire input L terminal, and the other end of the switch circuit is connected with the IN-OUT terminal, and the switch circuit comprises a circuit structure formed by single or multiple unidirectional silicon controlled rectifiers, bidirectional silicon controlled rectifiers, IGBT devices, MOSFET devices, quick relays and the like; the cooperative control output modulation module is mainly used for rapidly switching on and off alternating current according to control signals output by the singlechip and the switch driving circuit, so that a power alternating current sine wave is changed into a special-shaped alternating current waveform with a certain rule, and the special-shaped alternating current waveform with the certain rule contains a cooperative control instruction for synchronizing the working states of other connected control devices; the output of the coordinated control output modulation module is sent to one or more externally connected control devices with the same or similar circuit structures through the IN-OUT terminal; one end of the auxiliary control output modulation module is connected to a mains supply alternating current loop through the L terminal, and the other end of the auxiliary control output modulation module is connected to the IN-OUT terminal, so that even if the IN-OUT terminal is mistakenly connected to a mains supply loop, an internal circuit cannot be damaged, the requirement on electricians IN installation and construction is simplified, and the damage risk of mistakenly connecting products is reduced; in practical applications, the cooperative control output modulation module is not necessary, and for example, when only a single control device is needed to control the controlled electric equipment without a joint control function of connecting a plurality of control devices, the cooperative control output modulation module can be omitted, and the cost of practical products can be reduced to a certain extent in large-scale applications.

As a preferable scheme, one end of the cooperative control input detection module is connected with the IN-OUT terminal, and the other end of the cooperative control input detection module is connected with the single chip microcomputer module, and the cooperative control input detection module comprises a circuit for converting an abnormal alternating current waveform appearing at the IN-OUT terminal into a low-level pulse signal, and the low-level pulse signal is sent to the single chip microcomputer module; the single chip microcomputer module can judge the signal source according to the difference of the waveform and the occurrence time of the signal, and if the signal is from the cooperative control output modulation module of the control device, the single chip microcomputer module does not respond to the signal; if the signal comes from an external control device, the single chip microcomputer module demodulates a coordination control instruction contained in the low-level pulse signal according to the appointed logic.

As a preferable scheme, Lx terminals of a plurality of control devices are connected IN parallel by common wires and then externally connected with one or a plurality of controlled electric devices, and the IN-OUT terminals of the plurality of control devices are connected IN parallel by common wires; the control devices form a joint control and joint regulation mode for cooperatively controlling one or more connected controlled electric devices according to a certain control logic based on the parallel connection mode; IN addition, each control device completes wiring according to the joint control and joint regulation modes, after AC power supply, each circuit IN each control device completes normal power-on initialization, each control device is IN a standby state for detecting the control input of a user, and the single chip module of each control device detects the control input of the user and also detects control signals sent by other control devices through an IN-OUT terminal; when a user operates one of the control devices (the control device can be directly touched for input or transmitted for input through the wireless transceiving module), the control device immediately becomes a master control device, the single chip microcomputer in the control device becomes an upper computer, the other control devices become slave control devices, and the single chip microcomputers in the control devices respectively become lower computers; the upper computer IN the main control device changes the output of the cooperative control output modulation module thereof to modulate the output of the IN-OUT terminal thereof IN a mode of modulating alternating current waveform according to the agreed program logic, and further sending a coordination control command to the IN-OUT terminal of each connected slave device through the electric wire connected with the IN-OUT terminal IN a mode of changing alternating current waveform, wherein the coordination control input detection module and the lower computer IN each slave device respectively detect and demodulate the coordination control command, and the relay control module and the coordination control output modulation function module IN each slave device jointly disconnect the output of the Lx terminal, the upper computer of the main control device changes the output of the relay control module and the output modulation function module of the main control device at the Lx terminal in an alternating current waveform modulation mode, and further changes the working state of one or more connected controlled electric devices; when no further operation is performed within a period of time after the user completes the operation input to the master control device, the master control device exits the master control device state and the slave control devices exit the slave control device state, and each control device is restored to the standby state for detecting the operation input of the user again.

As a preferable scheme, the control device can further extend the circuit structure to include a switch switching circuit electrically connected with the single chip microcomputer, so as to expand some functions as required to perform various controls on the multiple paths of controlled electric devices respectively; after the circuit structure related by the invention is specially designed and special elements are adopted, when each wiring terminal is normally or wrongly connected to a live wire or a zero wire of a commercial power grid, an internal circuit of the whole control device cannot be damaged.

The utility model discloses an above-mentioned circuit structure including interface terminal realizes a plurality of controlling means allies oneself with accuse or single controlling means single control function through modulating the alternating current wave form, only connects with ordinary power line and realizes a plurality of controlling means to the allies oneself with accuse and the allies oneself with the accent of single or a plurality of controlled power consumption device, has saved the required configuration trouble of adopting the wireless connection technique, has also saved the required laying cost and the configuration trouble of adopting the weak current cable connection technique, the pre-sale, after-sale service cost of dealer and engineer has greatly been reduced; because the power line is adopted between the control device and the controlled power utilization device to supply power and transmit the control instruction based on the waveform change of alternating current, the stable transmission of the control instruction is ensured, the farthest communication distance can reach more than 2 kilometers, and the technical application is greatly expanded; if the control device is made into a touch sensing panel switch and the controlled power utilization device is made into a light and color adjustable lamp, a user can conveniently adjust and control the brightness and the color temperature of the lamp in a multistage way by controlling the touch sensing panel switch, a very simple implementation scheme is provided for improving the appearance of an object to be illuminated and improving the ambient illumination atmosphere, the development of commercial illumination and household illumination technologies is greatly promoted, and the whole illumination technology rapidly enters the light and color adjusting era.

Drawings

The invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used to designate like or similar parts throughout the figures thereof. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to explain the principles and advantages of the invention. In the drawings:

FIG. 1 is a block diagram and wiring diagram of the internal circuitry of a single control device;

FIG. 2 is a schematic circuit diagram of a single control device;

FIG. 3 is a schematic circuit diagram of an AC waveform modulation module circuit;

FIG. 4 is a schematic circuit diagram of a circuit of the coordinated output modulation module;

FIG. 5 is a schematic diagram of a circuit configuration in which two control devices are connected;

fig. 6 is a circuit configuration diagram of a controlled electric device and a connection diagram of a plurality of controlled electric devices.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and descriptions have omitted, for the sake of clarity, the representation and description of components and processes that are not relevant to the present invention and known to those of ordinary skill in the art.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a plurality of controlling means that link to each other through ordinary electric wire carry out alone or coordinated control's circuit structure to the operating condition of the one or more controlled power consumption devices of common connection, especially change a plurality of controlling means that alternating current sine wave waveform comes the cooperative control to link to each other by ordinary electric wire through the regulation and control command modulation that agrees when someone is for controlling the input, and then in order to change the technique and the method of the one or more controlled device operating condition that a plurality of controlling means link to each other jointly.

As shown in fig. 1, the utility model discloses a many devices allies oneself with accuse circuit based on modulation alternating current waveform contains one or more controlling means. Each control device includes: the AC/DC power supply module converts alternating current into low-voltage direct current to supply power to each part of circuits; the alternating current reference detection module can detect the zero crossing point time of the alternating current sine wave; the relay control module can receive the control of the single chip microcomputer to supply power or cut off the power to the controlled electric device; the touch input module can receive user control input in a touch induction or key mode; an optional wireless transceiver module; a display module; the alternating current waveform modulation module can modulate the power alternating current sine wave into an appointed special-shaped waveform; the auxiliary control output modulation module can modulate the power alternating current sine wave into an appointed special-shaped wave and send the special-shaped wave to the internal auxiliary control input detection module which can be selectively connected with another control device with the same circuit structure; the auxiliary control input detection module can detect the signal sent to the auxiliary control input detection module and send the detection output to the single chip microcomputer module; a single chip Microcomputer (MCU) module electrically connected with the touch input module, the display module, the optional wireless transceiver module, the AC reference detection module, the AC waveform modulation module, the auxiliary control output modulation module and the auxiliary control input detection module respectively; the output of the alternating current waveform modulation module is externally connected to a controlled power utilization device; the input end of the assistant control input detection module is connected with the output end of the assistant control output modulation module, and can be externally connected to the input end of the assistant control input detection module and the output end of the assistant control output modulation module of another control device with the same or similar circuit structure.

Wherein, every controlling means all has four binding post specifically at least: a zero line input N terminal and a live line input L terminal which are connected with a commercial power AC power supply; an IN-OUT terminal connected to the auxiliary control input detection module and the auxiliary control output modulation module; an Lx terminal connected with the output of the AC waveform modulation module and externally connected with a controlled electric device; the internal circuit of the controlled electric device is connected with the Lx terminal, detects and demodulates a control command sent by the control device through the Lx terminal, and changes the working state of the controlled electric device according to the control command; in practical application, the N terminal may be mistakenly connected to a live line of a commercial AC power supply, the L terminal may be mistakenly connected to a neutral line of the commercial AC power supply, and the multi-device joint control circuit may work normally.

As a specific example, the circuit structure shown in fig. 2 is an internal circuit structure including an interface terminal of a control device that realizes a function of controlling a plurality of devices in parallel or controlling a single device by modulating an ac waveform; as shown in fig. 2, the control device 1 includes a display module 10, a touch input module 11, an optional wireless transceiver module 12, a single chip microcomputer module 13, a relay control module 14, an auxiliary control output modulation module 15, an auxiliary control input detection module 16, an AC waveform modulation module 17, an AC/DC power supply module 18, and an AC reference detection module 19; the touch control input module is connected with the singlechip module and can receive touch sensing or key control input of a user; the display module is connected with the singlechip module and can adopt an LED lamp array or an LCD display screen to provide necessary current control state related to the control device for a user; the optional wireless transceiver module is remotely connected with other equipment or systems in a wireless mode, remote control can be realized or the working state of the control device can be sent to remote control equipment by virtue of a mobile phone APP or an intelligent voice sound box, and the output of the wireless transceiver module is connected to the single chip microcomputer module; one end of the alternating current reference detection module is connected to the L terminal, and the other end of the alternating current reference detection module is connected with the single chip microcomputer module, can detect the zero crossing point moment of the alternating current sine wave on the L terminal and output a pulse signal corresponding to the zero crossing point of the alternating current sine wave to the single chip microcomputer module, and the single chip microcomputer generates a control instruction by taking the zero crossing point pulse signal as a reference of the control instruction; one end of the alternating current waveform modulation module is connected with the L terminal, the other end of the alternating current waveform modulation module is connected with the Lx terminal, the other end of the alternating current waveform modulation module is connected to the single chip microcomputer module, the alternating current waveform modulation module can receive a control instruction output by the single chip microcomputer module to switch and modulate power alternating current from the L terminal, modulated alternating current with a changed waveform or an unchanged waveform is output to a connected controlled power utilization device through the Lx terminal, the controlled power utilization device can demodulate a control instruction for adjusting the working state of the controlled power utilization device while obtaining power supply, and the working state of the controlled power utilization device can be changed according to the control instruction; one end of the relay control module is connected with the L terminal, the other end of the relay control module is connected with the Lx terminal, and the other end of the relay control module is connected with the singlechip module and can receive the output control of the singlechip to close or open a dry contact of the relay; the auxiliary control output modulation module is connected with the L terminal at one end, the IN-OUT terminal at the other end and the single chip microcomputer module at the other end, can be controlled by the single chip microcomputer module to modulate the waveform of the power alternating current IN the form of an auxiliary control instruction and output the modulated special-shaped waveform alternating current to the IN-OUT terminal; the auxiliary control input detection module has one end connected with the IN-OUT terminal and one end connected with the singlechip module, and can detect the special-shaped waveform alternating current signal received by the IN-OUT terminal and output the detection result to the singlechip module for processing; a single chip module electrically connected with the touch input module, the AC reference detection module, the relay control module, the optional wireless transceiver module, the display module, the AC waveform modulation module, the auxiliary control output modulation module and the auxiliary control input detection module respectively, and the single chip module can receive the output signal of the touch input module or the optional wireless module or the auxiliary control input detection module, and divides the signal into three paths according to the different received specific signals and the appointed program flow or data format to respectively control the output of the co-control output modulation module, the on-off of the relay dry contact of the relay control module and the AC waveform modulation output of the AC waveform modulation module, and then the power supply state and the working state of the externally connected controlled electric device are controlled or the working state of another control device is cooperatively controlled, and then the commonly externally connected controlled electric device is cooperatively controlled.

In this embodiment, the ac waveform modulation module 17, as shown in fig. 3, includes a switching circuit 32 and a driving circuit 31; one end of the switching circuit is connected with the L terminal, and the other end of the switching circuit is connected with the Lx terminal, and the switching circuit comprises a circuit structure formed by one or more of one-way silicon controlled rectifier, two-way silicon controlled rectifier, IGBT device, MOSFET device, quick relay and other devices, and is mainly used for rapidly switching on and off the alternating current from the L terminal according to a control signal sent by the singlechip and the driving circuit 31 so that a power alternating current sine wave is changed into a special-shaped alternating current waveform with a certain rule and then is output through the Lx terminal, and the special-shaped alternating current waveform with the certain rule comprises a control instruction for changing the working state of a controlled power device connected with the L.

The output of the relay control module 14 is connected in parallel with the output of the alternating current waveform modulation module 17, that is, one end of each of the two modules is connected to the L terminal, and the other end of each of the two modules is connected to the Lx terminal; the relay control module 14 and the alternating current waveform modulation module 17 are controlled by a single chip microcomputer module, and the single chip microcomputer respectively controls the output of the relay control module and the output of the alternating current waveform modulation function through certain program logic; when the control device sends a control instruction to the connected controlled electric device according to the operation and control requirements of a user, the relay control module 14 disconnects a dry contact of an internal relay, and the alternating current waveform modulation module modulates alternating current sine waves under the control of the single chip microcomputer and outputs the alternating current sine waves to the connected controlled electric device through the Lx terminal; when a user does not operate the control device any more for a period of time, the single chip microcomputer controls the relay control module to close the dry contact of the relay, the L terminal is directly in short circuit conduction with the Lx terminal, and the commercial power alternating current from the L terminal is directly supplied to the connected controlled power utilization device through the closed relay dry contact and the Lx terminal; no matter whether the controlled electric device is in the period of sending the control instruction or not, the controlled electric device obtains alternating current power supply through the Lx terminal, when the relay control module 14 and the alternating current waveform modulation module 17 are controlled by the single chip microcomputer to cut off the output, the controlled electric device connected with the Lx terminal does not obtain power supply any more; the relay control module 14 and the alternating current waveform modulation module 17 are connected in parallel with the L terminal and the Lx terminal, and then the characteristics of relatively low cost of the relay and relatively small contact resistance of a dry contact thereof can be fully utilized by combining the control logic of the single chip microcomputer, so that the construction cost of the whole circuit is effectively reduced, the power consumption of the device is also reduced, the heat generation of the device is reduced, and the stability and the reliability of the circuit are ensured.

The coordinated output modulation module 15, as shown in fig. 4, includes a switch circuit 42 and a driving circuit 41; one end of the switch circuit is connected with the L terminal, and the other end of the switch circuit is connected with the IN-OUT terminal, and the switch circuit comprises a circuit structure which is not limited to a circuit structure formed by single or a plurality of unidirectional silicon controlled rectifiers, bidirectional silicon controlled rectifiers, IGBT devices, MOSFET devices, quick relays and the like; the cooperative control output modulation module is mainly used for rapidly switching on and off alternating current according to control signals output by the singlechip and the driving circuit 41 so that a power alternating current sine wave is changed into a special-shaped alternating current waveform with a certain rule, and the special-shaped alternating current waveform with the certain rule contains a cooperative control instruction for synchronizing the working states of other connected control devices; the output of the coordinated control output modulation module 15 is sent to another external control device or control devices with the same or similar circuit structures through an IN-OUT terminal; one end of the coordination control output modulation module 15 is connected to a mains supply alternating current loop through an L terminal, and the other end of the coordination control output modulation module is connected to an IN-OUT terminal which can be connected to the mains supply loop without damaging an internal circuit of the control device, so that the requirement on electricians IN installation and construction is simplified, and the risk that products are mistakenly connected and damaged is reduced; in practical applications, the cooperative control output modulation module 15 is not necessary, and for example, when only a single control device is needed to control the controlled electric equipment without a joint control function of connecting a plurality of control devices, the cooperative control output modulation module can be omitted, and the cost of practical products can be reduced to a certain extent in large-scale applications.

One end of the auxiliary control input detection module 16 is connected with the IN-OUT terminal, and one end is connected with the singlechip module, and the auxiliary control input detection module comprises a circuit which can convert the special-shaped alternating current waveform appearing at the IN-OUT terminal into a low-level pulse signal, and the low-level pulse signal is sent to the singlechip module; the single chip microcomputer module can judge the signal source according to the difference of the waveform and the occurrence time of the signal, and if the signal is from the cooperative control output modulation module of the control device, the single chip microcomputer module does not respond to the signal; if the signal comes from an external control device, the single chip microcomputer module demodulates a coordination control instruction contained in the low-level pulse signal according to the appointed logic.

The wireless transceiver module is an optional module, and includes but is not limited to a WiFi module, a bluetooth module, a ZigBee module, a 2.4GHz module, a 433MHz module, an NB-IOT module and other wireless modules based on different communication protocols and communication technologies, which can be used for remote control, and the communication module can realize communication between the control device and the remote control device.

The Lx terminals of the plurality of control devices can be connected IN parallel by common wires and then externally connected with one or more controlled electric devices, and the IN-OUT terminals of the plurality of control devices can be connected IN parallel by common wires; the control devices can form a joint control and joint regulation mode for cooperatively controlling one or more connected controlled electric devices according to a certain control logic based on a parallel connection mode; IN addition, each control device which completes wiring IN the joint control and joint regulation modes completes normal power-on initialization of each circuit IN each control device after AC power supply, each control device is IN a standby state for detecting the control input of a user, and the single chip module of each control device detects the control input of the user and also detects control signals sent by other control devices through an IN-OUT terminal; when a user operates one of the control devices (the control device can be directly input by touch or input by wireless module transmission), the control device becomes a master control device instantly, the single chip microcomputer in the control device becomes an upper computer, the other control devices become slave control devices, and the single chip microcomputers in the control devices become lower computers; the upper computer IN the main control device changes the output of the auxiliary control output modulation module of the upper computer to be modulated at the IN-OUT terminal of the upper computer IN a mode of modulating alternating current waveform according to the appointed program logic, then sends OUT auxiliary control instructions to the IN-OUT terminal of each connected slave control device IN a mode of changing alternating current waveform through an electric wire connected with the IN-OUT terminal, the auxiliary control input detection module and the lower computer IN each slave control device respectively detect and demodulate the auxiliary control instructions, and jointly disconnect the output of the relay control module and the auxiliary control output modulation function module IN the upper computer to the Lx terminal, and then the upper computer IN the main control device changes the output of the relay control module and the auxiliary control output modulation function module at the Lx terminal IN a mode of modulating alternating current waveform, so as to change the working state of one or more connected controlled electric devices; when the user does not have further operation within a period of time after finishing the operation input to the master control device, the master control device exits the state of the master control device and the slave control devices exit the state of the slave control devices, and each control device is restored to the standby state for detecting the operation input of the user again.

Fig. 5 is a schematic circuit diagram showing a circuit configuration in which two control devices (referred to as the control device 1 and the control device 2, respectively) are connected in the above-described manner, and fig. 6 is a schematic circuit diagram of a controlled electric device and a connection diagram of a plurality of controlled electric devices. The Lx terminals of the two control devices are connected in parallel and then connected to one or more controlled electric devices, and each controlled electric device obtains power supply and control instructions for changing the working state through the Lx terminals; if the user's operation input occurs in the control device 1, the control device 1 becomes a master control device (its internal single chip microcomputer becomes an upper computer) and the control device 2 becomes a slave control device (its internal single chip microcomputer becomes a lower computer) during the operation input of the user.

In addition, by properly extending the circuit structure, some functions can be expanded as required by adding some switch switching circuits to perform various controls on the multiple paths of controlled electric devices respectively; the utility model relates to a circuit structure behind special design and the special component of adoption, each binding post is when being inserted live wire or the zero line of commercial power electric wire netting by normal or mistake, and whole controlling means's internal circuit can not damage.

The utility model realizes the joint control and joint debugging of a plurality of control devices to a single or a plurality of controlled electric devices only by using the connection of common power lines, saves the configuration trouble required by adopting a wireless connection technology, also saves the laying cost and the configuration trouble required by adopting a weak current cable connection technology, and greatly reduces the pre-sale and post-sale service cost of dealers and engineers; because the power line is adopted between the control device and the controlled power utilization device to supply power and transmit the control instruction based on the waveform change of alternating current, the stable transmission of the control instruction is ensured, the farthest communication distance can reach more than 2 kilometers, and the technical application is greatly expanded; if the control device is made into a touch sensing panel switch and the controlled power utilization device is made into a light and color adjustable lamp, the brightness and the color temperature of the lamp can be conveniently adjusted and controlled by a user by controlling the touch sensing panel switch, a very simple implementation scheme is provided for improving the appearance of an object to be illuminated and improving the ambient illumination atmosphere, the development of commercial illumination and household illumination technologies is greatly promoted, and the whole illumination technology rapidly enters the light and color adjusting era.

When the optional wireless transceiver module is adopted as the function extension of the control device, the diversified operation of most users on the control device can be directly realized in the machine; the remote control instruction transmitted by the wireless transceiver module can be used for carrying out wired control on a plurality of controlled electric devices by the technology of the utility model; because of a wireless transceiver module of a plurality of controlled power consumption device sharing, wireless node quantity is showing and is reducing, the mutual interference problem of wireless signal between a plurality of wireless transceiver modules is effectively alleviated, the stability based on APP, intelligent audio amplifier's intelligent control technique has been improved, when giving user intelligent control's facility, also greatly improved user's the experience of controlling, reduced user's complaint rate, to the application of falling to the ground of whole intelligent home technology provides very good feasible route.

The utility model discloses the technique can be used together with the invention patent (application number or patent number: 201910753208.3) of "a method based on power line transmission control instruction" that applicant applied for before, can combine the advantage of two utility model patents to a great extent, very is fit for extensively applying to illumination such as office, family, school, hotel, commercial meeting, the joint debugging and the joint control application of (window) curtain, also is suitable for other occasions that need to use this technique.

The utility model is different from the technology used by the current market control device, the control device utilizes the connected common power line to transmit the control command for control, and is a brand new technology which can cooperate with a plurality of control devices to control the complex working state of the controlled electric device, and the construction and wiring are simple as the construction and wiring of the traditional mechanical panel switch, so that the complex pre-sale and post-sale training and service are not needed for the dealer and constructor, and the social operation cost can be greatly reduced; as is known, the main function of the wall-mounted panel switch is to control the lamp, and the multiple light and color adjusting panel switches made on the basis of the circuit structure of the utility model can carry out various light and color adjusting control on the connected lamp in a joint control mode of connecting common electric wires, enrich the light demand of people in a simple and feasible mode, and replace the control of the traditional mechanical switch on the lamp in a large range; utilize the utility model discloses the technique also can make various different controlling means and control various controlled power consumption devices, these controlled power consumption devices to contain and be not limited to the lamps and lanterns that can adjust luminance/mix colours, the motor of steerable corner or rotational speed, the exhaust fan of adjustable aperture, the valve of controllable stroke, adjustable temperature, adjustable humidity, the variable certain physical parameter's of adjustable volume various power consumption devices.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements or equivalents to the invention may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.

Claims

1. A multi-device joint control circuit based on modulation alternating current waveform is characterized in that: comprises 1 or more control devices;

each control device comprises a single chip microcomputer module, an AC/DC power supply module, an alternating current reference detection module, a relay control module, an alternating current waveform modulation module, a cooperative control output modulation module and a cooperative control input detection module, wherein the AC/DC power supply module, the alternating current reference detection module, the relay control module, the alternating current waveform modulation module, the cooperative control output modulation module and the cooperative control input detection module are electrically connected with the single chip microcomputer module;

the AC/DC power supply module is used for converting alternating current into low-voltage direct current to supply power to each circuit; the alternating current reference detection module is used for detecting the zero crossing point moment of the alternating current sine wave; the output of the alternating current waveform modulation module is externally connected to a controlled power utilization device, and the alternating current waveform modulation module modulates a power alternating current sine wave into an appointed special-shaped waveform; the coordination control output modulation module modulates the power alternating current sine wave into an appointed special-shaped wave according to a control command sent by the single chip microcomputer module and transmits the special-shaped wave to the coordination control input detection module of each control device; the assistant control input detection module detects the signal sent to the assistant control input detection module and sends the detection output to the single chip microcomputer module; the input end of the assistant control input detection module is connected with the output end of the assistant control output modulation module, and is selectively and externally connected to the input end of the assistant control input detection module and the output end of the assistant control output modulation module of each control device; the relay control module is used for receiving the control of the single chip microcomputer module to supply power or cut off the power to the controlled power utilization device and is matched with the cooperative control output modulation module to realize the transmission of control instructions.

2. The multi-device joint control circuit according to claim 1, wherein: the control device comprises four wiring terminals, wherein two of the four wiring terminals are a zero line input N terminal and a live line input L terminal which are respectively used for connecting a commercial power AC power supply; one of the IN-OUT terminals is connected with the auxiliary control input detection module and the auxiliary control output modulation module; one is an Lx terminal used for connecting the output of the alternating current waveform modulation module and externally connecting a controlled electric device; and the internal circuit of the controlled electric device connected with the Lx terminal detects and demodulates a control command sent by the control device through the Lx terminal, and changes the working state of the controlled electric device according to the control command.

3. The multi-device joint control circuit according to claim 2, wherein: one end of the alternating current reference detection module is connected to the live wire input L terminal, and the other end of the alternating current reference detection module is connected with the single chip microcomputer module, and is used for detecting the zero crossing point moment of the alternating current sine wave on the live wire input L terminal, generating a pulse signal corresponding to the zero crossing point of the alternating current sine wave and outputting the pulse signal to the single chip microcomputer module, and the single chip microcomputer module generates a control instruction by taking the zero crossing point pulse signal as a reference; one end of the alternating current waveform modulation module is connected with a live wire input L terminal, one end of the alternating current waveform modulation module is connected with the Lx terminal, the other end of the alternating current waveform modulation module is connected to the single chip microcomputer module, the alternating current waveform modulation module receives the control output of the single chip microcomputer module and carries out on-off modulation on the power alternating current from the live wire input L terminal, the modulated alternating current with a changed waveform or an unchanged waveform is output to a connected controlled power utilization device through the Lx terminal, and the controlled power utilization device obtains power supply and simultaneously demodulates a control instruction for adjusting the working state of the controlled power utilization device through the power alternating current with the changed waveform; one end of the relay control module is connected with the L terminal, the other end of the relay control module is connected with the Lx terminal, and the other end of the relay control module is connected with the singlechip module and used for receiving the output of the singlechip to control the closing or opening of a dry contact of the relay; the auxiliary control output modulation module is connected with the live wire input L terminal, the IN-OUT terminal and the single chip microcomputer module at one end, is controlled by the single chip microcomputer module to modulate the waveform of the power alternating current IN an auxiliary control instruction mode and outputs the modulated special-shaped waveform alternating current to the IN-OUT terminal; one end of the assistant control input detection module is connected with the IN-OUT terminal, and the other end of the assistant control input detection module is connected with the single chip microcomputer module, and the assistant control input detection module detects the special-shaped waveform alternating current signals received by the IN-OUT terminal and outputs the detection result to the single chip microcomputer module for processing.

4. The multi-device joint control circuit according to any one of claims 1 to 3, wherein: the control device also comprises a wireless transceiving module electrically connected with the singlechip module; the single chip microcomputer module receives the output signal of the wireless transceiver module or the assistant control input detection module, and divides the signal into three paths according to different received specific signals according to a predetermined program flow or a data format to respectively control the output of the assistant control output modulation module, the on-off of a relay dry contact of the relay control module and the AC waveform modulation output of the AC waveform modulation module, so as to control the power supply state and the working state of an externally connected controlled electric device or cooperatively control the working state of another control device and then cooperatively control the commonly connected controlled electric device.

5. The multi-device joint control circuit according to any one of claims 1 to 3, wherein: the control device also comprises a touch input module electrically connected with the singlechip module and used for receiving touch induction or key-press type control input of a user; the single chip microcomputer module receives the output signal of the touch input module or the assistant control input detection module, and divides the output signal into three paths according to different received specific signals and a predetermined program flow or data format to respectively control the output of the assistant control output modulation module, the on-off of a relay dry contact of the relay control module and the AC waveform modulation output of the AC waveform modulation module, so as to control the power supply state and the working state of an externally connected controlled electric device or cooperatively control the working state of another control device and then cooperatively control the commonly connected controlled electric device.

6. The multi-device joint control circuit according to any one of claims 1 to 3, wherein: the control device also comprises a display module electrically connected with the singlechip, and an LED lamp array or an LCD display screen is adopted to provide necessary current control state related to the control device for a user.

7. The multi-device joint control circuit according to claim 2 or 3, wherein: the alternating current waveform modulation module comprises a switch circuit and a drive circuit; one end of the switching circuit is connected with the live wire input L terminal, the other end of the switching circuit is connected with the Lx terminal, the switching circuit is used for rapidly switching on and off the alternating current from the live wire input L terminal according to control signals sent by the singlechip module and the driving circuit, so that a power alternating current sine wave is changed into a special-shaped alternating current waveform with a certain rule and then is output through the Lx terminal, and the special-shaped alternating current waveform with the certain rule contains a control instruction for changing the working state of a controlled power device connected with the Lx terminal.

8. The multi-device joint control circuit according to claim 2 or 3, wherein: the output of the relay control module and the output of the alternating current waveform modulation module are connected in parallel, namely one end of the relay control module and one end of the alternating current waveform modulation module are both connected to the live wire input L terminal, and the other end of the relay control module and one end of the alternating current waveform modulation module are both connected to the Lx terminal; the relay control module and the alternating current waveform modulation module are both controlled by the single chip microcomputer module, and the single chip microcomputer module respectively controls the output of the relay control module and the output of the alternating current waveform modulation function through certain program logic; when the control device sends a control instruction to the connected controlled electric device according to the operation and control requirements of a user, the relay control module disconnects the relay dry contact of the control device, and the alternating current waveform modulation module is controlled by the single chip microcomputer to modulate an alternating current sine wave and output the alternating current sine wave to the connected controlled electric device through the Lx terminal; when a user does not operate the control device any more for a period of time, the singlechip controls the relay control module to close a dry contact of the relay, the live wire input L terminal is directly in short circuit conduction with the Lx terminal, and the commercial power alternating current from the live wire input L terminal is directly supplied to the connected controlled power utilization device through the closed relay dry contact and the Lx terminal; whether in the period of sending the control instruction or not, the controlled electric device obtains alternating current power supply through the Lx terminal, and when the relay control module and the alternating current waveform modulation module are controlled by the single chip microcomputer to cut off the output, the controlled electric device connected with the Lx end does not obtain power supply any more.

9. The multi-device joint control circuit according to claim 2 or 3, wherein: the coordination control output modulation module comprises a switch circuit and a drive circuit; one end of the switch circuit is connected with the live wire input L terminal, and the other end of the switch circuit is connected with the IN-OUT terminal; the cooperative control output modulation module is used for rapidly switching on and off alternating current according to control signals output by the singlechip module and the switch driving circuit, so that a power alternating current sine wave is changed into a special-shaped alternating current waveform with a certain rule, and the special-shaped alternating current waveform with the certain rule comprises a cooperative control instruction of the working state of the synchronous connection control device; and the output of the coordinated control output modulation module is sent to one or more externally connected control devices with the same or similar circuit structures through the IN-OUT terminal.

10. The multi-device joint control circuit according to claim 2 or 3, wherein: the Lx terminals of the control devices are connected in parallel by adopting common wires and then externally connected with one or more controlled electric devices; and the control devices form a joint control and joint debugging mode for cooperatively controlling one or more connected controlled electric devices according to preset control logic based on the parallel connection mode.