CN108303905B

CN108303905B - Household equipment control system and control method

Info

Publication number: CN108303905B
Application number: CN201810200866.5A
Authority: CN
Inventors: 李太平; 袁晚晴
Original assignee: Dashan Technology Co ltd
Current assignee: Dashan Technology Co ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2023-08-22
Anticipated expiration: 2038-03-12
Also published as: CN108303905A

Abstract

The invention provides a household equipment control system and a control method, wherein the control system comprises the following steps: the system comprises power supply equipment, a host, at least one slave and at least one household device; the first wiring terminal of the power supply equipment is connected with the host computer through a power supply cable, and the second wiring terminal of the power supply equipment is respectively connected with each slave computer through the power supply cable; the host is connected with each slave machine through a power supply cable respectively; each slave is connected with one household device through a power supply cable, wherein different slaves are connected with different household devices; the power supply equipment is used for supplying power to the host, each slave and each household equipment through the power supply cable; the host is used for sending control signals to the slaves through the power supply cable according to the control command input from the outside; each slave machine is used for controlling the connected household equipment according to the control signal sent by the master machine through the power supply cable. The scheme can be suitable for intelligent home improvement of the decorated house.

Description

Household equipment control system and control method

Technical Field

The invention relates to the technical field of intelligent home, in particular to a home equipment control system and a control method.

Background

The intelligent home uses the home as a platform, integrates facilities related to home life by utilizing a comprehensive wiring technology, a network communication technology, a security technology, an automatic control technology and an audio-video technology, builds an efficient management system of home facilities and family schedule matters, improves the safety, convenience, comfort and artistry of the home, and realizes an environment-friendly and energy-saving living environment. In order to intelligently control the home devices, data exchange with each home device is required, and for this purpose, a communication link with each home device needs to be established.

At present, all household equipment links can be connected through buses such as RS-485, KNX, CAN, C-Bus, SCS-BUS, lonWorks, modbus and the like, so that control over the household equipment is realized.

Aiming at the current method for controlling household equipment, buses such as RS-485, KNX, CAN, C-Bus, SCS-BUS, lonWorks, modbus and the like are required to be independently laid with Bus cables, and the wall or the ground of a decorated house can be damaged due to the fact that the Bus cables are required to be laid with grooves on the wall or the ground, so that the method is not suitable for intelligent household reconstruction of the decorated house.

Disclosure of Invention

The embodiment of the invention provides a household equipment control system and a control method, which can be suitable for intelligent household reconstruction of a decorated house.

In a first aspect, an embodiment of the present invention provides a home device control system, including: the system comprises power supply equipment, a host, at least one slave and at least one household device;

the first wiring terminal of the power supply equipment is connected with the host computer through a power supply cable, and the second wiring terminal of the power supply equipment is respectively connected with each slave computer through a power supply cable;

the host is connected with each slave machine through a power supply cable respectively;

each slave is connected with one household device through a power supply cable, wherein different slaves are connected with different household devices;

the power supply equipment is used for supplying power to the host, each slave and each household equipment through a power supply cable;

the host is used for sending control signals to the slaves through the power supply cable according to the control instructions input from the outside;

and each slave is used for controlling the connected household equipment according to the control signal sent by the host through the power supply cable.

Alternatively, the process may be carried out in a single-stage,

the host includes: MOS tube, intelligent controller and power distribution module, wherein,

the grid electrode of the MOS tube is connected with the intelligent controller, the drain electrode of the MOS tube is connected with the power distribution module, and the source electrode of the MOS tube is connected with the first wiring terminal of the power supply equipment through a power supply cable;

The power distribution module is connected with each slave machine through a power supply cable respectively;

the intelligent controller is used for controlling the on-off state of the MOS tube according to the control instruction input from the outside so as to send the control signal to each slave machine through the continuous state of the current on the power supply cable between the power distribution module and each slave machine.

Alternatively, the process may be carried out in a single-stage,

each of the slaves includes: the slave signal receiving module, the processor, the first resistor, the capacitor and the diode, wherein,

the input end of the first resistor is connected with the second wiring end of the power supply equipment through a power supply cable, and the output end of the first resistor is connected with the power distribution module through a power supply line;

the positive electrode of the diode is connected with the input end of the first resistor, the negative electrode of the diode is connected with the positive electrode of the capacitor, the negative electrode of the capacitor is connected with the output end of the first resistor, and the positive electrode and the negative electrode of the capacitor are respectively connected with two corresponding power supply terminals of the household equipment through power supply cables;

the slave signal receiving module is used for detecting the voltages at the two ends of the first resistor and the two ends of the capacitor, determining the control signal according to the voltage changes at the two ends of the first resistor and the two ends of the capacitor, and sending the control signal to the processor;

The processor is used for controlling the corresponding household equipment according to the control signal.

Alternatively, the process may be carried out in a single-stage,

the intelligent controller is further configured to determine a target home device to be controlled from among the home devices according to the control instruction, and send identification information of the target home device to the slave signal receiving modules in the slaves through a continuous state of current on a power supply cable between the power distribution module and the slaves by controlling an on-off state of the MOS tube;

each slave signal receiving module is further configured to determine identification information of the target home device according to voltage changes at two ends of the corresponding first resistor and two ends of the capacitor, and send the identification information to the connected processor;

and each processor is further configured to determine, according to the received identification information, whether the corresponding home device is the target home device, if so, control the corresponding home device according to the control signal, otherwise, determine the received control signal as an invalid signal.

Alternatively, the process may be carried out in a single-stage,

each of the slaves further includes: the second resistor, the third resistor and the triode, wherein,

the collector of the triode is connected with the input end of the first resistor, the emitter of the triode is connected with the input end of the second resistor, the output end of the second resistor is connected with the output end of the first resistor, the base of the triode is connected with the output end of the third resistor, and the input end of the third resistor is connected with the processor;

the processor is used for acquiring the corresponding abnormal information of the household equipment, and controlling the conduction state of the triode according to the abnormal information so as to form a corresponding pulsating current on the second resistor;

the host further comprises: a fourth resistor and a host signal receiving module;

the input end of the fourth resistor is connected with the source electrode of the MOS tube, and the output end of the fourth resistor is connected with the first wiring terminal of the power supply equipment through a power supply cable;

the two voltage detection ends of the host signal receiving module are respectively connected with the input end and the output end of the fourth resistor, and the output end of the host signal receiving module is connected with the intelligent controller;

The host signal receiving module is used for obtaining a pulsating current signal corresponding to the pulsating current according to the voltage at two ends of the fourth resistor and sending corresponding abnormal feedback information to the intelligent controller according to the pulsating current signal;

the intelligent controller is further configured to send the abnormal feedback information to an external user terminal.

Optionally, the capacity of the capacitor satisfies the following equation:

the capacitor comprises a capacitor, a t, an E, a k and a real number, wherein the capacitor is connected with the capacitor, the capacitor is characterized by the capacitor, the P represents the rated power of the household equipment connected with the capacitor, the t represents the duration of each disconnection of the MOS tube, the E represents the rated voltage of the household equipment connected with the capacitor, and the k represents the real number which is larger than zero and smaller than 1.

In a second aspect, an embodiment of the present invention further provides a home device control method based on any one of the home device control systems provided in the first aspect, including:

receiving an externally input control instruction by using the host;

according to the control instruction, the master machine is utilized to send control signals to the slaves through a power supply cable;

and controlling the household equipment connected with the slaves according to the control signals by using each slave.

Optionally, when the host includes a MOS tube, an intelligent controller and a power distribution module,

and according to the control instruction, the master machine is used for sending control signals to each slave machine through a power supply cable, and the method comprises the following steps:

and controlling the on-off state of the MOS tube by using the intelligent controller according to the control instruction input from the outside so as to send the control signal to each slave machine through the continuous state of the current on the power supply cable between the power distribution module and each slave machine.

Optionally, when the slave comprises a slave signal receiving module, a processor, a first resistor, a capacitor and a diode,

the controlling the home equipment connected with the slave according to the control signal comprises the following steps:

detecting the voltages at the two ends of the first resistor and the two ends of the capacitor by using the slave signal receiving module, and determining the control signal according to the voltage changes at the two ends of the first resistor and the two ends of the capacitor;

transmitting the control signal to the processor by using the slave signal receiving module;

and controlling the corresponding household equipment by using the processor according to the control signal.

Alternatively, the process may be carried out in a single-stage,

after receiving the control instruction input from outside and before controlling the home equipment connected with the slave according to the control signal, the method further comprises:

determining target household equipment to be controlled from all household equipment by using the intelligent controller according to the control instruction, and sending identification information of the target household equipment to the slave signal receiving modules in all the slaves through the continuous state of current on a power supply cable between the power distribution module and the slaves by controlling the on-off state of the MOS tube;

determining identification information of the target household equipment according to voltage changes at two ends of the first resistor and two ends of the capacitor by using each slave signal receiving module respectively, and sending the identification information to the connected processor;

and respectively utilizing each processor, determining whether the corresponding household equipment is the target household equipment according to the received identification information, if so, controlling the corresponding household equipment according to the control signal, otherwise, determining the received control signal as an invalid signal.

Alternatively, the process may be carried out in a single-stage,

when the slave further includes a second resistor, a third resistor, and a triode, and the master further includes a fourth resistor and a master signal receiving module, further comprising:

acquiring abnormal information of the corresponding household equipment by using each processor, and controlling the conduction state of the corresponding triode according to the abnormal information so as to form corresponding pulsating current on the corresponding second resistor;

and sending the abnormal feedback information to an external user terminal by using the intelligent controller.

According to the household equipment control system and the household equipment control method provided by the embodiment of the invention, the first wiring end of the power supply equipment is connected with the host computer through the power supply cable, the second wiring end of the power supply equipment is respectively connected with each slave computer through the power supply cable, the host computer is respectively connected with each slave computer through the power supply cable, each slave computer is connected with one household equipment through the power supply cable, and the power transmitted by the power supply equipment to each household equipment needs to pass through the host computer and the corresponding slave computer, so that the host computer can send control signals to each slave computer through the power supply cable connected with the slave computer, and the slave computers can control the connected household equipment according to the control signals. Therefore, the host computer sends control signals to each slave computer through the power supply cable, the slave computers control the connected household equipment through the power supply cable, the household equipment can be controlled by using the existing power supply cable, a bus cable is not required to be independently laid, damage to the wall or the ground of the decorated house is avoided, and the intelligent household reconstruction device is applicable to intelligent household reconstruction of the decorated house.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a home device control system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of another home device control system according to an embodiment of the present invention;

fig. 3 is a schematic diagram of yet another home appliance control system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of yet another home device control system according to an embodiment of the present invention;

fig. 5 is a flowchart of a method for controlling home devices according to an embodiment of the present invention;

fig. 6 is a flowchart of another home device control method according to an embodiment of the present invention;

fig. 7 is a flowchart of yet another home device control method according to an embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a home device control system, which may include: a power supply device 10, a master 20, at least one slave 30, and at least one home device 40;

the first terminal of the power supply device 10 is connected with the host 20 through a power supply cable, and the second terminal of the power supply device 10 is respectively connected with each slave 30 through the power supply cable;

the master 20 is connected with each slave 30 through a power supply cable;

each slave 30 is connected to one home device 40 by means of an electrical cable, wherein different slaves 30 are connected to different home devices 40;

the power supply device 10 is used for supplying power to the master 20, each slave 30 and each home device 40 through a power supply cable;

The master 20 is configured to send control signals to the slaves 30 through power supply cables according to externally input control instructions;

each slave 30 is used for controlling the connected home devices 40 according to the control signal transmitted from the master 20 through the power supply cable.

According to the household equipment control system provided by the embodiment of the invention, the first wiring end of the power supply equipment is connected with the host computer through the power supply cable, the second wiring end of the power supply equipment is respectively connected with each slave computer through the power supply cable, the host computer is respectively connected with each slave computer through the power supply cable, each slave computer is connected with one household equipment through the power supply cable, and the power transmitted by the power supply equipment to each household equipment needs to pass through the host computer and the corresponding slave computer, so that the host computer can send control signals to each slave computer through the power supply cable connected with the slave computer, and the slave computers can control the connected household equipment according to the control signals. Therefore, the host computer sends control signals to each slave computer through the power supply cable, the slave computers control the connected household equipment through the power supply cable, the household equipment can be controlled by using the existing power supply cable, a bus cable is not required to be independently laid, damage to the wall or the ground of the decorated house is avoided, and the intelligent household reconstruction device is applicable to intelligent household reconstruction of the decorated house.

Optionally, based on the home device control system shown in fig. 1, as shown in fig. 2, the host 20 includes: MOS tube Q1, intelligent controller 201 and power distribution module 202;

the grid electrode of the MOS tube Q1 is connected with the intelligent controller 201, the drain electrode of the MOS tube Q1 is connected with the power distribution module 202, the source electrode of the MOS tube Q1 is connected with the first wiring terminal of the power supply equipment 10 through a power supply cable, and the power distribution module 202 is respectively connected with each slave 30 through the power supply cable;

the intelligent controller 201 is configured to control the on-off state of the MOS transistor Q1 according to an externally input control command, so as to send a control signal corresponding to the control command to each slave 30 through a continuous state of current on the power supply cable between the function distribution module 202 and each slave 30.

The default state of the MOS tube grid is high level, namely when no external control instruction is input, the intelligent controller transmits a high level signal to the MOS tube grid, so that the source electrode and the drain electrode of the MOS tube are conducted, and the power supply equipment can transmit electric energy to each slave machine through the MOS tube and the power distribution module. When the intelligent controller receives an externally input control instruction, the intelligent controller controls the grid electrode of the MOS tube to transmit one or more low-level signals according to the control instruction, and when the grid electrode of the MOS tube is at a low level, the source electrode and the drain electrode are disconnected, so that one or more short interruptions of current on a power supply cable between the power distribution module and each slave machine can occur, and each slave machine can determine the control signal sent by the host machine according to the continuous state of the received current.

The power supply equipment transmits electric energy to the slaves, loops are needed to be formed between the first wiring end and the second wiring end, the second wiring end is connected with each slave respectively, the first wiring end is connected with each slave respectively through the MOS tube and the power distribution module, when the source electrode and the drain electrode of the MOS tube are continuously conducted, the first wiring end of the power supply equipment and the second wiring end form loops, each slave can receive continuous current, when the source electrode and the drain electrode of the MOS tube are intermittently conducted, the first wiring end of the power supply equipment and the second wiring end intermittently form loops, and corresponding terminals can appear in the current received by each slave. Therefore, the intelligent controller loads control signals to the current of the power supply cable by controlling the times, the on-off frequency and the single off time delay of the MOS tube so as to realize communication between the host and each slave through the existing power supply cable.

As shown in fig. 2, the power distribution module 202 is further connected to the intelligent controller 201, and since the intelligent controller 201 consumes energy in the process of receiving the external control command and controlling the on-off state of the MOS transistor Q1, the power distribution module 202 is connected to the intelligent controller 201, and the functional distribution module 202 can transmit the electric energy from the power supply device 10 to the intelligent controller 201, so as to ensure the normal operation of the intelligent controller 201.

Optionally, on the basis of the home equipment control system shown in fig. 2, the connection relationship between each slave and the master is as shown in fig. 3, and each slave 30 includes: the slave signal receiving module 301, the processor 302, the first resistor R1, the capacitor C and the diode D;

the input end of the first resistor R1 is connected with the second wiring end of the power supply equipment 10 through a power supply cable, and the output end of the first resistor R1 is connected with the power distribution module 202 through the power supply cable;

the positive electrode of the diode D is connected with the input end of the first resistor R1, the negative electrode of the diode D is connected with the positive electrode of the capacitor C, the negative electrode of the capacitor C is connected with the output end of the first resistor R1, and the positive electrode and the negative electrode of the capacitor C are respectively connected with two power supply terminals of the corresponding household equipment 40 through power supply cables;

the slave signal receiving module 301 may detect voltages at both ends of the first resistor R1 and both ends of the capacitor C, determine a control signal sent by the host 20 according to the voltage changes at both ends of the first resistor R1 and both ends of the capacitor C, and send the control signal to the processor 302;

the processor 302 may control the connected home device 40 according to the received control signal.

For each slave 30, a first resistor R1 is connected in parallel with a capacitor C in the slave 30, and two ends of the first resistor R1 are respectively connected with a second terminal of the power supply device and a power distribution module 202 in the master 20. When the source electrode and the drain electrode of the MOS tube Q1 are conducted, the voltage at two ends of the first resistor R1 is equal to the voltage at two ends of the capacitor C and is equal to the working voltage of the connected household equipment 40; when the source electrode and the drain electrode of the MOS tube Q1 are disconnected, the voltage at two ends of the first resistor R1 is zero, the voltage at two ends of the capacitor C serving as an energy storage element cannot be suddenly changed, and the voltage value at two ends of the capacitor C is gradually reduced; when the source electrode and the drain electrode of the MOS tube Q1 are disconnected and conducted for a short time, the voltage at two ends of the first resistor R1 suddenly changes to be equal to the working voltage of the connected household equipment 40, and the voltage at two ends of the capacitor C gradually rises to be equal to the working voltage of the connected household equipment 40. In this way, the slave signal receiving module 301 can determine the on-off state of the MOS transistor Q1 by detecting the voltage across the first resistor R1 and the voltage across the capacitor C, where the on-off state of the MOS transistor Q1 is controlled by the intelligent controller 201 according to the externally input control command, so that the slave signal receiving module 301 can determine the control signal corresponding to the control command according to the change condition of the voltage across the first resistor R1 and the voltage across the capacitor C.

After determining the control signal, the slave signal receiving module 301 sends the determined control signal to the processor 302 in a data signal form, and the processor 302 sends a control command to the home equipment 40 through a data cable connected with the corresponding home equipment 40, so as to control the home equipment 40.

As shown in fig. 3, two power supply terminals of the home device 40 are respectively connected to two ends of the capacitor C, and because a portion of electric energy is stored in the capacitor C, when the source and the drain of the MOS transistor Q1 are disconnected, the power supply device 10 stops transmitting the electric energy to the home device 40, and the capacitor C transmits the stored electric energy to the home device 40, so as to maintain the normal operation of the home device 40. When the source and the drain of the MOS transistor Q1 are briefly disconnected and turned on, the power supply device 10 restarts to supply power to each slave 30 and each home device 40, and at this time, the capacitor C included in each slave 30 will be charged until the voltage at both ends of the capacitor C is equal to the operating voltage of the connected home device 40. In this way, the host 20 disconnects the loop of the power supply device 10 for supplying power to the home device 40 in the process of sending the control signal to the slave 30, but the capacitor C in the slave 30 can provide the electric energy required by the operation of the home device 40 in the process of disconnecting the loop, so that the normal operation of the home device 40 is not affected in the process of communicating with the home device 40.

Specifically, the terminal a on the slave signal receiving module 301 is connected to the output terminal of the first resistor R1, the terminal b on the slave signal receiving module 301 is connected to the input terminal of the first resistor R1, and the terminal C on the slave signal receiving module 301 is connected to the positive electrode of the capacitor C. Thus, the slave signal receiving module 301 can obtain the voltage across the first resistor R1 by detecting the voltage between the terminal a and the terminal b, and can obtain the voltage across the capacitor C by detecting the voltage between the terminal a and the terminal C. The slave signal receiving module 301 can determine the on-off state of the MOS transistor Q1 by comparing the voltage at both ends of the first resistor R1 with the voltage at both ends of the capacitor C, thereby determining the control signal.

Optionally, in combination with the home device control system shown in fig. 2 and fig. 3, the function allocation module 202 is connected to a plurality of slave devices 30, and when the intelligent controller 201 sends a control signal by controlling the on/off of the MOS transistor Q1 according to a control instruction, the slave signal receiving module 301 in each slave device 30 can obtain the control signal, but a user only wants to control one of the home devices 40 by using the control instruction, so after determining the control signal, each slave device 30 needs to further determine whether the target home device to be controlled by the control signal is the home device connected to the target home device.

In order to ensure that the user can control each home device respectively, after receiving the control command input from the outside, the intelligent controller 201 may determine the target home device to be controlled by the user from each home device according to the control command, and send the identification information of the target home device to the slave signal receiving module 301 in each slave 30 by controlling the on-off state of the MOS transistor Q1. The slave signal receiving module 301 in each slave 30 may determine the identification information of the target home device according to the voltage changes at the two ends of the connected first resistor and capacitor, and send the determined identification information to the connected processor 302. After receiving the identification information sent by the connected slave signal receiving module 301, the processor 302 in each slave 30 determines whether the home device 40 connected with the slave 30 is the target home device according to the received identification information, if so, controls the corresponding home device according to the received control signal bound with the received identification information, otherwise, determines the received control signal bound with the received identification information as an invalid signal, and does not perform operation control on the corresponding home device according to the control signal.

For example, the power distribution module in the master is respectively connected with 3 slaves through a power supply cable, the 3 slaves are respectively a slave 1, a slave 2 and a slave 3, the slave 1 is connected with the home equipment 1 through the power supply cable, the slave 2 is connected with the home equipment 2 through the power supply cable, and the slave 3 is connected with the home equipment 3 through the power supply cable. After receiving a control instruction A sent by a user, an intelligent controller in a host determines that target household equipment to be controlled by the control instruction A is household equipment 1, and at the moment, the intelligent controller generates interval current corresponding to the identification information of the target household equipment on a power supply cable between a power distribution module and each slave signal receiving module by controlling the on-off state of an MOS (metal oxide semiconductor) tube according to preset identification information of each household equipment. The slave signal receiving module in each slave can obtain the identification information of the target household equipment and the control signal corresponding to the control instruction by detecting the voltages at the two ends of the first resistor and the capacitor, and sends the obtained identification information and control signal of the target household equipment to the connecting processor. The processor in the slave 1 compares the identification information of the target household equipment with the identification information of the household equipment 1 connected with the slave 1, and when the identification information of the target household equipment is identical with the identification information of the household equipment 1, the processor in the slave 1 controls the household equipment 1 according to the received control signal; the processor in the slave machine 2 compares the identification information of the target household equipment with the identification information of the household equipment 2, and the processor in the slave machine 2 does not take action for the received control signal because the identification information of the target household equipment is different from the identification information of the household equipment 2; the processor in the slave 3 compares the identification information of the target home device with the identification information of the home device 3, and the processor in the slave 3 does not take action for the received control signal because the identification information of the target home device is different from the identification information of the home device 3.

Specifically, when the intelligent controller sends the identification information and the control signal of the target household equipment to each slave machine through the control MOS tube, the intelligent controller can send the identification information of the target household equipment first and then send the control signal, can send the control signal first and then send the identification information of the target household equipment, and can also send the identification information of the target household equipment and the control signal after being fused. In addition, when the intelligent controller sends the identification information and the control signal of the target household equipment through the control MOS tube, the intelligent controller can control the MOS tube to form Manchester codes to send different identification information and control signals. For example, the intelligent controller forms a transmission signal in the form of 10K modulation rate Manchester code on a power supply cable connecting the host computer and the slave computer by controlling the on-off state of the MOS tube, each message comprises 6-bit identification information and 8-bit control signals, for example, under the control of the intelligent control of the MOS tube, the on-off state is changed from the on-state of 50 mu s-off 100 mu s-on 50 mu s-off 50 mu s-on 100 mu s-off 50 mu s-on 50 mu s-off 100 mu s-on 50 mu s-off 50 mu s-on 100 mu s-off 100 mu s-on 50 mu s-off 50 mu s-on 100 mu s, these 14-bit binary codes can be transmitted 10100111001001 to the individual slaves by high-power conversion of the level, wherein the first 6 bits 101001 are used to characterize the identification information of the household appliance 1 and the last 8 bits 11001001 are used to characterize the control signal for the household appliance 1.

Optionally, on the basis of the home equipment control system shown in fig. 3, as shown in fig. 4, each slave 30 may further include a second resistor R2, a third resistor R3, and a triode Q2, and correspondingly, the master may further include a fourth resistor R4 and a master signal receiving module 203;

in each slave 30, the collector of the triode Q2 is connected to the input terminal of the first resistor R1, the emitter of the triode Q2 is connected to the input terminal of the second resistor R2, the output terminal of the second resistor R2 is connected to the output terminal of the first resistor R1, the base of the triode Q2 is connected to the output terminal of the third resistor R3, and the input terminal of the third resistor R3 is connected to the processor 302;

in the host 20, an input end of a fourth resistor R4 is connected to a source electrode of the MOS transistor Q1, an output end of the fourth resistor R4 is connected to a first terminal of the power supply device 10 through a power supply cable, two voltage detection ends of the host signal receiving module 203 are respectively connected to an input end and an output end of the fourth resistor R4, and an output end of the host signal receiving module 203 is connected to the intelligent control 201.

For each slave 30, the processor 302 in the slave 30 may acquire abnormality information of the home device 40 connected to the slave 30, and control the on state of the transistor Q2 according to the acquired abnormality information, so as to form a pulsating current corresponding to the abnormality information on the second resistor R2. After the pulsating current reaches the fourth resistor R4 through the power distribution module 202, the host signal receiving module 203 may obtain a pulsating current signal corresponding to the pulsating current according to the voltage at two ends of the fourth resistor R4, and may further send corresponding abnormal feedback information to the intelligent controller 201 according to the pulsating current signal. After receiving the abnormal feedback information sent by the host signal receiving module 203, the intelligent controller 201 sends the received abnormal feedback information to the user terminal.

Each household device is provided with a driving module, the driving module is used for detecting the working state of the household device where the driving module is located, the driving module is connected with the processor in the corresponding slave machine, and when the driving module detects that the household device is abnormal, abnormal information is sent to the connected processor. After the processor receives the abnormal information sent by the driving module, the triode is conducted or turned off by controlling the voltage of the input end of the third resistor, when the triode is conducted, current passes through the second resistor, and when the triode is disconnected, no current passes through the second resistor, so that pulsating current can be formed on the second resistor, and the pulsating current can carry the content of the abnormal information by controlling the conducted and disconnected times and the conducted and disconnected duration time of the triode. And the processor is similar to the host computer which sends the identification information and the control signals to each slave computer, and the processor can also transmit Manchester codes through a power supply cable connecting the host computer and the slave computers and send the identification information and specific abnormal information of the abnormal household equipment to the host computer through the Manchester codes.

After the pulsating current formed by the triode and the current output by the first resistor are overlapped, the pulsating current sequentially passes through the power supply cable between the first resistor and the power distribution module, the power distribution module and the MOS tube to reach the fourth resistor, and the voltage at the two ends of the fourth resistor can be correspondingly changed due to the action of the pulsating current, so that the host signal receiving module can determine a pulsating current signal corresponding to the pulsating current through detecting the voltage at the two ends of the fourth resistor, and further can determine abnormal feedback information corresponding to abnormal information according to the pulsating current signal. After the host signal receiving module sends the determined abnormal feedback information to the intelligent controller, the intelligent controller can send the abnormal feedback information to the user terminal to prompt the abnormal condition of the corresponding household equipment.

The processor can control the conduction state of the triode according to the abnormal information of the household equipment, so that the pulsating current on the second resistor carries the abnormal information of the household equipment, the pulsating current and the current on the first resistor are superposed and flow through the fourth resistor, the host signal receiving module can determine a pulsating current signal corresponding to the pulsating current by detecting the voltage at two ends of the fourth resistor, and then can send abnormal feedback information capable of representing the abnormal state of the household equipment to the intelligent controller according to the pulsating current signal, and finally the intelligent controller sends the abnormal feedback information to the user terminal to prompt the user of the abnormal condition of the household equipment. In this way, each slave can detect the abnormal condition of the connected household equipment, and can send the abnormal condition of the household equipment to the host, and the host sends the abnormal condition of the household equipment to the user terminal, so that the user can know the abnormal condition of the household equipment in time. Therefore, through the connected power supply cables, the host can send control signals to the slaves, the slaves can also send abnormal information of the household equipment to the host, and bidirectional communication between the host and the slaves is realized, so that the control of the household equipment is more intelligent.

It should be noted that, since the host is connected with each slave respectively, in order to ensure that the host signal receiving module can determine which home device is abnormal, when the slave processor controls the conduction state of the triode to form a pulsating current, the pulsating current can carry the identification information of the home device connected with the pulsating current. Therefore, the host signal receiving module can determine the abnormal information of the household equipment and also can determine the identification information of the household equipment with the abnormality according to the voltages at the two ends of the fourth resistor, so that a user can be accurately prompted to process the household equipment with the abnormality.

It should be noted that, since the control signal sent by the master to the slave and the abnormal feedback information sent by the slave to the master are both currents transmitted by the same power supply cable, in order to avoid mutual interference between the control signal and the abnormal feedback information caused by simultaneous information sending by the master and the slave, only unidirectional transmission of information is allowed on the power supply cable at the same time, that is, when the master sends information to the slave, the slave is not allowed to send information to the master, and when the slave does not allow the master to send information to the slave, the transmission of information to the slave is specifically achieved through coordination between the host signal receiving module and each processor. In addition, when the system includes a plurality of slaves, only one slave is allowed to transmit information to the master at a time.

Optionally, based on the home appliance control system shown in fig. 3, the capacity of the capacitor C needs to satisfy the following equation:

wherein, C' represents the capacity of the capacitor C, P represents the rated power of the household device 40 connected to the capacitor C, t represents the duration of each turn-off of the MOS transistor Q1, E represents the rated voltage of the household device 40 connected to the capacitor C, and k represents a real number greater than zero and less than 1.

When the host computer sends control signals to each slave computer, the MOS tube is disconnected once or a plurality of times, after the MOS tube is disconnected, the power supply equipment is disconnected with the power supply loop of each household equipment, and at the moment, the capacitor in each slave computer is required to supply power for the household equipment connected with the slave computer so as to ensure the normal operation of the household equipment, and the electric energy stored by the capacitor is required to maintain the electric energy required by the operation of the corresponding household equipment in the disconnection process of the MOS tube. In the process that the MOS tube is in the disconnection state, the electric energy required by the operation of each household device is related to the rated power and the rated voltage of the household device and the duration of each disconnection of the MOS tube, and is positively related to the rated power of the household device and the duration of each disconnection of the MOS tube and is negatively related to the rated voltage of the household device. Therefore, for each slave, according to the rated power and rated voltage of the household equipment connected with the slave, the capacitance with the capacity meeting the equation is arranged in the slave, so that the host and the household equipment of the slave can normally operate when sending control signals to each slave.

As shown in fig. 5, based on the home equipment control system provided in each embodiment, the embodiment of the present invention provides a home equipment control method, which may include the following steps:

step 501: receiving an externally input control instruction by using a host;

step 502: according to the control instruction, the host computer is utilized to send control signals to each slave computer through the power supply cable;

step 503: and controlling the household equipment connected with the slave machine according to the control signal by utilizing each slave machine.

The embodiment of the invention provides a household equipment control method, which is characterized in that after a host receives an externally input control command, the host can respectively send control signals to each slave machine through a power supply cable according to the control command, each slave machine can control connected household equipment according to the received control signals, the host can send the control signals to the slave machines through the power supply cable, and a bus cable is not required to be independently arranged for the host to send the control signals to the slave machines, so that the wall or the ground of a decorated house cannot be damaged when the intelligent house is reformed, and the method is suitable for intelligent house reforming of the decorated house.

Optionally, when the home device control system is shown in fig. 2, the host includes a MOS tube, an intelligent controller, and a power distribution module, in step 502, according to a control instruction and by using the operation that the host sends a control signal to each slave machine through a power supply cable, the intelligent controller may control the on-off state of the MOS tube according to the control instruction input from the outside, so as to send the control signal to each slave machine through the continuous state of the current on the power supply cable between the power distribution module and each slave machine.

Optionally, when the home device control system is shown in fig. 3, the slave includes a slave signal receiving module, a processor, a first resistor, a current and a diode, in step 503, the slave is used to control the home device connected to the slave according to the control signal, where the slave signal receiving module may firstly detect voltages at two ends of the first resistor and two ends of the capacitor, and determine the control signal according to the voltage changes at two ends of the first resistor and two ends of the capacitor, and then send the control signal to the processor by using the slave signal receiving module, and finally control the corresponding home device according to the control signal by using the processor.

Optionally, between step 501 and step 503, the intelligent controller may further determine the target home device to be controlled from each home device according to the control instruction, and determine, by controlling the on-off state of the MOS tube, whether the corresponding home device is the target home device according to the received identification information, if so, control the corresponding home device according to the control signal, and if not, determine, by using each slave signal receiving module, the identification information of the target home device according to the voltage changes at the two ends of the corresponding first resistor and the two ends of the capacitor, and send the determined identification information of the target home device to the connected processor, and respectively use each processor, and determine, according to the received identification information, whether the corresponding home device is the target home device, if so, control the corresponding home device according to the control signal, otherwise, determine the received control signal as an invalid signal.

Optionally, when the home appliance control system is as shown in fig. 4, the slave further includes a second resistor, a third resistor and a triode, and the master further includes a fourth resistor and a master signal receiving module, the home appliance control method further includes:

acquiring abnormal information of corresponding household equipment by using each processor, and controlling the conduction state of a corresponding triode according to the abnormal information so as to form a corresponding pulsating current on a corresponding second resistor;

a host signal receiving module is utilized to obtain a pulsating current signal corresponding to the pulsating current according to the voltage at two ends of the fourth resistor, and corresponding abnormal feedback information is sent to the intelligent controller according to the pulsating current signal;

and the intelligent controller is used for sending the abnormal feedback information to an external user terminal.

It should be noted that, since the steps included in the method for controlling home devices are based on the same concept as the home device control system provided by the embodiment of the present invention, specific content can be referred to the home device control system provided by the embodiment of the present invention, and details are not repeated here.

The following describes in further detail the home device control method provided by the embodiment of the present invention with reference to the home device control system shown in fig. 4, where the method may include the following steps as shown in fig. 6:

Step 601: and receiving a control instruction input by a user by utilizing the intelligent controller.

In the embodiment of the invention, the intelligent controller can receive the control instruction input by the user in a wired or wireless mode, and particularly can receive the control instruction sent by the user through a mobile phone, a tablet personal computer or a physical key switch.

For example, the intelligent controller receives a control instruction sent by a user through a mobile phone to turn on the light.

Step 602: and determining target household equipment to be controlled according to the control instruction by using the intelligent controller.

In the embodiment of the invention, after receiving the control instruction input by the user, the intelligent controller determines the target household equipment to be controlled by the user according to the control instruction. The household equipment control system can comprise a plurality of household equipment, and the household equipment can be lighting equipment, curtain equipment, audio equipment, video equipment, air conditioning equipment, security equipment or kitchen equipment and the like.

For example, the household equipment control system comprises 3 household equipment, namely an LED illuminating lamp, an electric curtain and an air conditioner, wherein the LED illuminating lamp is connected with the slave 1, the electric curtain is connected with the slave 2, and the air conditioner is connected with the slave 3. After receiving a control instruction for heightening the LED illuminating lamp sent by a user, the intelligent controller determines that target household equipment to be controlled by the user is the LED illuminating lamp.

Step 603: and controlling the on-off state of the MOS tube by using the intelligent controller according to the control instruction and the identification information of the target household equipment.

In the embodiment of the invention, firstly, the intelligent controller controls the MOS tube to conduct one or more times of disconnection and then conduction operations according to the identification information of the target household equipment, so that the power distribution module transmits discontinuous currents which can represent the identification information of the target household equipment to each slave machine through the power supply cable, and secondly, the intelligent controller controls the MOS tube to conduct one or more times of disconnection and then conduction operations according to the control instruction, so that the power distribution module transmits discontinuous currents corresponding to the control instruction to each slave machine through the power supply cable. The intelligent controller controls the on-off state of the MOS tube according to the identification information of the target household equipment, or controls the on-off state of the MOS tube according to the control instruction, and then controls the on-off state of the MOS tube according to the identification information of the target household equipment.

For example, the intelligent controller controls the on-off state of the MOS tube according to the identification information of the target home device and the control signal for controlling the target home device, that is, according to the identification information of the LED lighting lamp and the control instruction corresponding to the LED lighting lamp, so that 14-bit manchester codes 10100111001001 are formed on the power supply cable connected between the host and the slave, wherein the first 6-bit manchester codes 101001 are used for representing the identification information of the LED lighting lamp, and the last 8-bit manchester codes 11001001 are used for representing that the brightness of the LED lighting lamp is increased by two levels.

Step 604: the slave signal receiving module in each slave detects the capacitances at the two ends of the first resistor and the capacitance, and determines the identification information and the control signal of the target household equipment.

In the embodiment of the invention, as shown in fig. 4, in each slave, the slave signal receiving module detects the voltages at two ends of the first resistor and two ends of the capacitor in real time, when the on state of the MOS transistor is controlled by the intelligent controller to change, the voltages at two ends of the first resistor and the two ends of the capacitor change, specifically, when the MOS transistor is disconnected, the voltages at two ends of the first resistor become zero, the voltages at two ends of the capacitor slowly decrease, when the MOS transistor is connected, the voltages at two ends of the first resistor are increased to the working voltage of the connected household equipment incidentally, the voltages at two ends of the capacitor slowly increase to the working voltage of the connected household equipment, and the slave signal receiving module can respectively determine the identification information of the target household equipment and the control signal corresponding to the control instruction received by the intelligent controller according to the change conditions of the voltages at two ends of the first resistor and the two ends of the capacitor.

For example, in each of the three slaves linked to the master, the slave signal receiving module detects the voltages across the first resistor and across the capacitor, obtains the 14-bit manchester code 10100111001001 according to the variation of the voltages across the first resistor and across the capacitor, so that the identification information of the target home device (the identification information of the LED illumination lamp) can be determined according to the first 6-bit manchester code 101001, and the control signal for the target home device can be determined to be the brightness of which is turned up by two levels according to the last 8-bit manchester code 11001001.

Step 605: and the processor in each slave determines whether the corresponding household equipment is the target household equipment according to the identification information, if so, the step 606 is executed, and if not, the current flow is ended.

In the embodiment of the present invention, for each slave, after determining the identification information and the control signal of the target home device, the slave signal receiving module in the slave sends the identification information and the control signal to the connected processor, and after receiving the identification information of the target home device, the processor determines whether the home device connected with the slave is the target home device according to the identification information, if so, the step 606 is correspondingly executed, otherwise, the control signal received by the processor is not the home device connected with the slave, the received control signal is determined to be an invalid signal, and the current flow is ended.

For example, after receiving the identification information of the target home device, the processor in the slave 1 determines that the LED lighting lamp connected to the slave 1 is the target home device according to the received identification information, and executes step 606 correspondingly for the slave 1. After the processor in the slave machine 2 receives the identification information of the target household equipment, the electric curtain connected with the slave machine 2 is determined not to be the target household equipment according to the received identification information, and the current flow is ended for the slave machine 2. After the processor in the slave 3 receives the identification information of the target home equipment, the air conditioner connected with the slave 3 is determined not to be the target home equipment according to the received identification information, and the current flow is received for the slave 3.

Step 606: and controlling the corresponding household equipment by using the processor according to the control signal.

In the embodiment of the invention, if the processor in the slave machine judges that the household equipment connected with the slave machine is the target household equipment, the processor in the slave machine controls the household equipment connected with the slave machine according to the received control signal.

For example, after determining that the LED lighting lamp connected to the slave 1 is the target home device, the processor in the slave 1 controls the LED lighting lamp according to the received control signal, and increases the brightness of the LED lighting lamp by two levels.

The following describes in further detail the home equipment control method provided by the embodiment of the present invention, taking feedback of abnormal information of the home equipment to the user as an example, with reference to the home equipment control system shown in fig. 4, and as shown in fig. 7, the method may include the following steps:

step 701: in each slave, a processor is utilized to acquire abnormal information of the connected home equipment.

In the embodiment of the invention, in each slave machine, the processor can acquire the abnormal information of the household equipment connected with the slave machine, specifically, the processor is connected with the detection module in the household equipment through the data cable, the detection module can detect the state of the household equipment in real time, and when the household equipment is detected to be abnormal, the detection module can send the abnormal information reflecting the abnormal state of the household equipment to the processor through the data cable.

For example, the slave 1 is connected with an LED illuminating lamp, an LED driving module is arranged in the LED illuminating lamp and is connected with a processor in the slave 1, the LED driving module can detect whether the LED illuminating lamp is short-circuited or broken or not in real time, and when the LED illuminating lamp is detected to be short-circuited or broken, corresponding abnormal information is sent to the processor.

Step 702: and controlling the conduction state of the triode by using the processor according to the abnormality information, and forming a pulsating current corresponding to the abnormality information on the second resistor.

In the embodiment of the invention, after the processor acquires the abnormal information of the corresponding household equipment in each slave, the processor controls the conduction state of the triode according to the abnormal information and the identification information of the household equipment corresponding to the abnormal information, when the triode is conducted, the second resistor is provided with current, and when the triode is disconnected, the second resistor is provided with no current, so that pulsating current can be formed on the second resistor by controlling the conduction state of the triode. After the pulsating current on the second resistor is overlapped with the current on the first resistor, the pulsating current sequentially passes through the power supply cable, the power distribution module and the MOS tube which are connected to reach the fourth resistor R4.

For example, after acquiring the abnormal information reflecting the occurrence of the short circuit of the LED lamp and the identification information of the LED lamp, the processor in the slave 1 controls the on-off state of the transistor to make the pulsating current flowing through the second resistor carry the manchester code 10100100111011, and the pulsating current is transmitted to the fourth resistor after being superimposed with the current flowing through the first resistor. The first 6 bits 101001 of the 14-bit Manchester code carried by the pulsating current are used for representing identification information of the LED illuminating lamp, and the last 8 bits 00111011 are used for representing short circuit of the LED illuminating lamp.

Step 703: and detecting the voltage at two ends of the fourth resistor by using the host signal receiving module, and determining the identification information and the corresponding abnormal feedback information of the abnormal household equipment.

In the embodiment of the invention, in the host, the host signal receiving module detects the voltages at the two ends of the fourth resistor in real time, and the pulsating current signal can be separated from the current flowing through the fourth resistor according to the voltages at the two ends of the fourth resistor, so that abnormal household equipment and corresponding abnormal feedback information can be determined according to the pulsating current signal.

For example, the host signal receiving module in the host detects the voltage at both ends of the fourth resistor, separates the pulsating current signal from the current flowing through the fourth resistor, determines the 14-bit manchester code 10100100111011 according to the pulsating current signal, determines that the LED illumination lamp is abnormal according to the first 6-bit manchester code 101001, and determines that the LED illumination lamp is short-circuited according to the last 8-bit manchester code 00111011.

Step 704: and the host signal receiving module is used for sending the identification information of the abnormal household equipment and the corresponding abnormal feedback information to the intelligent controller.

In the embodiment of the invention, after the host signal receiving module determines the identification information of the abnormal household equipment and the corresponding abnormal feedback information, the determined identification information and the abnormal feedback information are sent to the intelligent controller.

Step 705: and the intelligent controller is used for sending the identification information and the abnormal feedback information to the user terminal.

In the embodiment of the invention, after receiving the identification information and the abnormal feedback information sent by the host signal receiving module, the intelligent controller sends the identification information of the abnormal household equipment and the corresponding abnormal feedback information to the terminal equipment of the user so as to feed back the abnormal information of the abnormal household equipment to the user.

For example, the intelligent controller sends the identification information of the LED illuminating lamp and the abnormal feedback information reflecting the short circuit condition of the LED illuminating lamp to the mobile phone of the user, and prompts the user to timely process the abnormal condition of the LED illuminating lamp.

In summary, the home equipment control system and the control method provided by the embodiments of the present invention have at least the following beneficial effects:

1. in the embodiment of the invention, the first wiring terminal of the power supply equipment is connected with the host computer through the power supply cable, the second wiring terminal of the power supply equipment is respectively connected with each slave computer through the power supply cable, the host computer is respectively connected with each slave computer through the power supply cable, each slave computer is connected with one household device through the power supply cable, and the power transmitted by the power supply equipment to each household device needs to pass through the host computer and the corresponding slave computer, so that the host computer can send control signals to each slave computer through the power supply cable connected with the slave computer, and the slave computer can control the connected household devices according to the control signals. Therefore, the host computer sends control signals to each slave computer through the power supply cable, the slave computers control the connected household equipment through the power supply cable, the household equipment can be controlled by using the existing power supply cable, a bus cable is not required to be independently laid, damage to the wall or the ground of the decorated house is avoided, and the intelligent household reconstruction device is applicable to intelligent household reconstruction of the decorated house.

2. In the embodiment of the invention, the intelligent control in the host machine can send the control signal to each slave machine through the power supply cable by controlling the on-off state of the MOS tube, and can also send the identification information of the target household equipment to be controlled to each slave machine through the power supply cable, so that when the household equipment control system comprises a plurality of household equipment, each household equipment can be controlled respectively, interference among different household equipment can be avoided, the use experience of a user can be improved, and the system is applicable to the situation with a plurality of household equipment.

3. In the embodiment of the invention, the processor arranged in the slave can acquire the abnormal information of the corresponding household equipment, and send the abnormal feedback information reflecting the abnormal condition of the household equipment to the host in a mode of overlapping the pulsating current, so that the host can send the abnormal feedback information to the user, the bidirectional communication between the host and the slave is realized, the user can be timely notified when the household equipment is abnormal, and the intelligence and the safety of the intelligent household system can be further improved.

4. In the embodiment of the invention, for each slave, the capacity of the capacitor in the slave is determined according to the rated power, rated voltage and other parameters of the household equipment connected with the slave, so that when the host sends a control signal to each slave, the electric energy stored in the capacitor in the slave can maintain the normal operation of the corresponding household equipment in the MOS tube disconnection process, and the power supply of each household equipment can be normally ensured while the control signal is transmitted through the power supply cable.

It is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article or apparatus that comprises the element.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, where the program, when executed, performs steps including the above method embodiments; and the aforementioned storage medium includes: various media in which program code may be stored, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A home appliance control system, comprising: the system comprises power supply equipment, a host, at least one slave and at least one household device;

Each slave machine is used for controlling the connected household equipment according to the control signals sent by the master machine through the power supply cable;

the intelligent controller is used for controlling the on-off state of the MOS tube according to the control instruction input from the outside so as to send the control signal to each slave machine through the continuous state of the current on the power supply cable between the power distribution module and each slave machine;

the processor is used for controlling the corresponding household equipment according to the control signal;

2. The system of claim 1, wherein the system further comprises a controller configured to control the controller,

The processor is used for acquiring the corresponding abnormal information of the household equipment, and controlling the conduction state of the triode according to the abnormal information so as to form a corresponding first pulsating current on the second resistor;

the host signal receiving module is used for obtaining a first pulsating current signal corresponding to the first pulsating current according to the voltage at two ends of the fourth resistor and sending corresponding abnormal feedback information to the intelligent controller according to the first pulsating current signal;

3. The system of claim 1, wherein the system further comprises a controller configured to control the controller,

The capacity of the capacitor satisfies the following equation:

wherein, the C represents the capacity of the capacitor, the P represents the rated power of the household equipment connected with the capacitor, the t represents the duration of each disconnection of the MOS tube, and E represents the rated voltage of the household equipment connected with the capacitor, and k represents a real number which is larger than zero and smaller than 1.

4. A home appliance control method based on the home appliance control system according to any one of claims 1 to 3, comprising:

receiving an externally input control instruction by using the host;

controlling the household equipment connected with the slave machine according to the control signal by using each slave machine;

when the host includes a MOS transistor, an intelligent controller and a power distribution module,

the intelligent controller is utilized to control the on-off state of the MOS tube according to the control instruction input from the outside so as to send the control signal to each slave machine through the continuous state of the current on the power supply cable between the power distribution module and each slave machine;

When the slave comprises a slave signal receiving module, a processor, a first resistor, a capacitor and a diode,

according to the control signal, the corresponding household equipment is controlled by the processor; after receiving the control instruction input from outside and before controlling the home equipment connected with the slave according to the control signal, the method further comprises:

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,