CN111278185A - Three routes intelligence double control switch based on single live wire installation - Google Patents
Three routes intelligence double control switch based on single live wire installation Download PDFInfo
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- CN111278185A CN111278185A CN202010152982.1A CN202010152982A CN111278185A CN 111278185 A CN111278185 A CN 111278185A CN 202010152982 A CN202010152982 A CN 202010152982A CN 111278185 A CN111278185 A CN 111278185A
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- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
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Abstract
The application discloses a three-path intelligent double-control switch based on single live wire installation, which is characterized in that an on-state power taking power supply unit is connected with one path of load live wire, one path of switch element and a main control unit; the main control unit is connected with one path of switch element; one path of switch element is connected with one path of first moving contact of load and one path of second moving contact of load; the off-state power taking power supply unit is connected with one path of load live wire, the main control unit, one path of load first movable contact and one path of load second movable contact; the two-way switch element is connected with the two-way load live wire, the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load; and the three-way switch element is connected with the three-way load live wire, the main control unit, the first movable contact of the three-way load and the second movable contact of the three-way load. This application is based on the two accuse switch applications of intelligence of single live wire mounting means, on the basis that does not change original house ornamentation wiring, can replace two accuse mechanical switch of tradition, realizes the intellectuality of switch.
Description
Technical Field
The application relates to the field of intelligent home, in particular to a three-way intelligent double-control switch based on single live wire installation.
Background
In the prior art, the power supply mode of the intelligent switch mainly comprises an intelligent switch powered by a zero live wire and an intelligent switch powered by a single live wire, the control mode mainly comprises single control, and the current double-control or multi-control mode comprises the following modes: 1. a master control switch is connected with a controlled lamp, an auxiliary switch synchronizes a control instruction of the lamp to the master control switch in a wireless communication mode, the master control switch executes the action of switching the lamp, the master control switch can be powered by a zero live wire or a single live wire, and the auxiliary switch basically takes battery power as a main power supply. 2. The main control switch is connected with the controlled lamp, the auxiliary switch is connected to the main control switch through a power signal wire, a control signal is transmitted to the main control switch through a signal wire when the key operation of the auxiliary switch is carried out, and the main control switch detects the signal and executes the switching action of the lamp. 3. One mechanical switch or 2 mechanical switches are replaced by intelligent double-control switches on a double-control circuit of a traditional mechanical switch, but the intelligent double-control switches are intelligent switches powered by zero-live wires.
In the mode 1, the communication between the main control switch and the auxiliary switch is mainly wireless communication, and more depends on local wireless network signals, and after the auxiliary switch is switched, the lamp may act in a delayed manner or not act, so that the stability of the network signals determines the flow degree of the local double-control switch. In the mode 2, the lamp needs to be connected to the main control switch, and when the lamp needs to be installed on site, an installer has certain electric power professional ability and can accurately select a lamp wire, a live wire and a control wire, and especially the requirement on site operation for replacing the mechanical double-control switch with the intelligent switch is higher. Mode 3 has the lowest installation requirement and can directly replace mechanical switches, but each switch position needs to be additionally provided with a zero line, and the current domestic switch field wiring is lack of the zero line, so the zero line needs to be reserved before wiring, and the use scene of the intelligent switch is limited.
Disclosure of Invention
The main aim at of this application provides a two accuse switches of three routes intelligence based on single live wire installation, its characterized in that includes: the power supply comprises an on-state power supply unit, an off-state power supply unit, a first-path switching element, a second-path switching element, a third-path switching element and a main control unit;
the on-state power taking power supply unit is connected with one path of load live wire, one path of switch element and the main control unit;
the main control unit is connected with the switching element;
the switching element of one path is connected with the first movable contact of one path of load and the second movable contact of the load of the other path;
the off-state power taking power supply unit comprises the one-way load live wire, the main control unit, the one-way load first movable contact and the one-way load second movable contact;
the two-way switch element is connected with the two-way load live wire, the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load; and
the three-way switch element is connected with a three-way load live wire, the main control unit, a first movable contact of the three-way load and a second movable contact of the three-way load.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: and the key operation detection unit is connected with the main control unit.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: and the switch state indicator lamp is connected with the main control unit.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: and the load work detection unit is connected with the on-state power taking power supply unit and the main control unit.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: and the two-way load working detection unit is connected with the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: and the three-way load work detection unit is connected with the main control unit, the first movable contact of the three-way load and the second movable contact of the three-way load.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the first mechanical switch is connected with one end of the load, and the other end of the first mechanical switch comprises: the first movable contact of the load of the same path; and the second movable contact of the load of the same path.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the second mechanical switch is connected with one end of the two-way load, and the other end of the second mechanical switch comprises: the first movable contact of the two-way load; and the second movable contact of the two-way load.
Optionally, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the third mechanical switch is connected with one end of the three-way load, and the other end of the third mechanical switch comprises: a first moving contact of the three loads; and a second moving contact of the three loads.
Optionally, the other end of the one-way load, the other end of the two-way load, and the other end of the three-way load are connected to a zero line.
Compared with the prior art, the method has the following beneficial effects:
the intelligent double-control switch based on the single-live-wire installation mode is applied, and on the basis of not changing original home decoration wiring, a traditional double-control mechanical switch can be replaced, so that the intellectualization of the switch is realized. The installation mode is just to transfer the electric wire originally connected to the mechanical switch to the intelligent switch. According to the intelligent double-control switch, the double control of the lamp can be realized by matching the intelligent double-control switch with the mechanical double-control switch, the double control of the lamp can also be realized by two intelligent double-control switches, the switch positions can be interchanged, and the intelligent double-control switch can be controlled by the mobile terminal.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
1-2 are flow frame diagrams of three-way intelligent double-control switches based on single fire wire installation according to one embodiment of the present application;
fig. 3-18 are circuit schematic diagrams of a three-way smart double-control switch based on a single fire wire installation according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-2, an embodiment of the present application provides a three-way intelligent dual-control switch installed based on a single live wire, including: the power supply comprises an on-state power supply unit, an off-state power supply unit, a first-path switching element, a second-path switching element, a third-path switching element and a main control unit; the on-state power taking power supply unit is connected with one path of load live wire, one path of switch element and the main control unit; the main control unit is connected with the switching element; the switching element of one path is connected with the first movable contact of one path of load and the second movable contact of the load of the other path; the off-state power taking power supply unit comprises the one-way load live wire, the main control unit, the one-way load first movable contact and the one-way load second movable contact; the two-way switch element is connected with the two-way load live wire, the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load; and the three-way switch element is connected with a three-way load live wire, the main control unit, a first movable contact of the three-way load and a second movable contact of the three-way load.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: and the key operation detection unit is connected with the main control unit.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: and the switch state indicator lamp is connected with the main control unit.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: and the load work detection unit is connected with the on-state power taking power supply unit and the main control unit.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: and the two-way load working detection unit is connected with the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: and the three-way load work detection unit is connected with the main control unit, the first movable contact of the three-way load and the second movable contact of the three-way load.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the first mechanical switch is connected with one end of the load, and the other end of the first mechanical switch comprises: the first movable contact of the load of the same path; and the second movable contact of the load of the same path.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the second mechanical switch is connected with one end of the two-way load, and the other end of the second mechanical switch comprises: the first movable contact of the two-way load; and the second movable contact of the two-way load.
In an embodiment of the present application, the three-way intelligent dual control switch installed based on a single live wire further includes: one end of the third mechanical switch is connected with one end of the three-way load, and the other end of the third mechanical switch comprises: a first moving contact of the three loads; and a second moving contact of the three loads.
In an embodiment of the present application, the other end of the one-way load, the other end of the two-way load, and the other end of the three-way load are connected to a zero line.
The application mainly comprises the following units: 1. the system comprises an on-state power supply unit (under the condition that a lamp is turned on), 2 an off-state power supply unit (under the condition that the lamp is turned off), 3 a switch element, 4 a main control unit, 5 a key operation detection unit, 6 a switch state indicator lamp, 7 a load work detection unit, 8 a two-way load work detection unit, 9 a three-way load work detection unit, 10 a two-way switch element, 11 a three-way switch element.
The on-state power supply unit is mainly used for providing power supply required by operation and execution actions for the switch in a light-on state and providing a load working state signal for the load working detection unit; the unit is a single live wire power-taking technology consisting of an MOS (metal oxide semiconductor) tube, an operational amplifier and a peripheral circuit, outputs a stable output voltage under the condition that a load lamp is turned on, the voltage signal is taken as a load working state signal and is introduced into a load working detection unit, and the voltage is subjected to voltage stabilization by a DC-DC chip to output a direct current working voltage for normal operation of a switch.
The off-state power supply unit is mainly used for providing power supply required by operation and execution actions for the switch in a light-off state; the unit is a DC working voltage switch which enables the AC-DC power supply to output the AC voltage on a live wire/load wire, a first movable contact and a second movable contact to pass through a rectifying circuit and enables the switch to normally run.
One path of switch element is composed of a fixed contact and two movable contacts, mainly realizes the conduction and disconnection of the movable contact and the fixed contact, and only one movable contact can be connected with the fixed contact at any time; the switching element is formed by a magnetic latching relay having a set of switchable normally open and normally closed states.
The two paths of switch elements are composed of a fixed contact and two movable contacts, and mainly realize the conduction and the disconnection of the movable contacts and the fixed contacts, and only one movable contact can be connected with the fixed contact at any time; the switching element is formed by a magnetic latching relay having a set of switchable normally open and normally closed states.
The three-way switch element consists of a fixed contact and two movable contacts, mainly realizes the conduction and the disconnection of the movable contacts and the fixed contacts, and only one movable contact can be connected with the fixed contact at any time; the switching element is formed by a magnetic latching relay having a set of switchable normally open and normally closed states.
The load work detection unit is used for monitoring the work state of the load lamp; the unit converts different voltage value signals output by the power supply unit in the on state under the light-off state and the light-on state of the load lamp into level signals and outputs the level signals to the main control unit.
The two-way load work detection unit is used for monitoring the work state of the two-way load lamp; the unit detects whether current flows between the first movable contact and the second movable contact of the two-way switch element, converts the weak current into a level signal through an optical coupler and outputs the level signal to the main control unit.
The three-way load work detection unit is used for monitoring the working state of the three-way load lamp; the unit detects whether current flows between the first movable contact and the second movable contact of the three-way switching element, converts the weak current into a level signal through an optical coupler and outputs the level signal to the main control unit.
The key operation detection unit is used for monitoring the key action state of the local three-way switch; the unit consists of a touch key and a peripheral filter capacitor, an action signal of the touch key is converted into a high-low level signal and sent to the main control unit, and 3 paths of keys are mutually independent.
The switch state indicator light is used for displaying the states of one switch, the two switches and the three switches of the current switch; 3 LED pilot lamps are driven by 3 IO ports of the main control unit to realize that the on-off state of each switch is respectively represented by the on-off state of each LED lamp, and the indicating states of the 3 paths of pilot lamps are mutually independent.
The main control unit can be a control module with a wireless communication function, wherein the wireless communication unit can be a wireless communication module such as WiFi, ZigBee, Bluetooth or 433; the unit can perform state synchronization of each switch and execution of each switch action command with a remote terminal through a wireless communication technology; the unit outputs corresponding driving signals for controlling the switch elements by monitoring each path of key action signals input by the key operation detection unit, controls the action of the corresponding switch elements and synchronizes the switch states of each path to the remote terminal. The unit monitors the on-off states of the load lamps corresponding to the one-way load work detection unit, the two-way load work detection unit and the three-way load detection unit, correspondingly outputs corresponding on-off state signals to the on-off state indicator lamps of each way, and synchronizes the on-off states of the load lamps of each way to the remote terminal.
Several key points of this application: 1. the load state detection mode is that different voltage values are identified by the on-state power supply unit under the on and off states of the load lamp. 2. The power supply of the switch only takes electricity from one path, and the two paths and the three paths only check and synchronize the load state and are not responsible for supplying power. 3. The fixed contact connecting wires of each circuit are mutually independent, and can be connected with a live wire or a load wire. 4. The double control switch of single live wire mounting mode replaces single or 2 mechanical double control switches to realize local double control and remote terminal control of the load lamp on the basis of not changing or increasing the original circuit.
On-state power supply unit
Referring to fig. 3, Q1 is a power-taking MOS transistor of the main current path; d1 is a TVS tube for protection of Q1; d4 is a rectifier diode; c3 is an energy storage capacitor; d5 is a 10V zener diode; u2 is an operational amplifier, the positive pole is connected with the input voltage minus the voltage of the voltage regulator tube, the negative pole is connected to the reference voltage through a resistor, and the output pole outputs high and low voltages according to the voltage difference between the positive pole and the negative pole. When the voltage of Vin1 rises from 0V, the voltage of a positive terminal rises from 0V, the voltage of a negative terminal is always 2.1V in the process, the operational amplifier outputs 0V, Q1 and Q2 are in a closed state until the voltage of Vin1 rises to 12.1V, the voltage of the positive terminal is higher than 2.1V, the operational amplifier outputs 12V voltage, MOS transistors Q1 and Q2 are conducted, the negative terminal is divided by resistors R6 and R7, the voltage is 1.05V, the main circuit is not charging the Vin1, the voltage of the positive terminal is discharged by the R2, the voltage drops along with the voltage, when the voltage is lower than the voltage of the negative terminal 1.05V, the operational amplifier outputs 0V, the MOS transistors Q1 and Q2 are disconnected, and the main circuit charges the Vin1 and the operation is repeated. U1 is LDO, output 2.1V, U3 is DC-DC conversion chip, convert Vin1 voltage to 3.3V voltage.
Off-state power supply unit
Referring to fig. 4, F1 is a fuse, D15 and D18 are rectifier diodes, U4 is an AC-DC chip, R19 and R24 are feedback resistors, and C18-19 is an energy storage filter capacitor.
One-way switch element
Referring to fig. 5, K1 is a set of switched magnetic latching relays, D2-3 is used to discharge the induced electromotive force generated by the coil after the relay is operated, and C1-2 is the energy storage capacitor.
Two-way switch element
Referring to fig. 6, K2 is a set of switching magnetic latching relays, D6-7 is used to discharge the induced electromotive force generated by the coil after the relay is operated, R3 is a current limiting resistor, and C8-9 is an energy storage capacitor.
Three-way switch element
Referring to fig. 7, K3 is a set of switching magnetic latching relays, D9-10 is used to discharge the induced electromotive force generated by the coil after the relay is operated, R8 is a current limiting resistor, and C11-12 is an energy storage capacitor.
Load work detection unit of all the way
Referring to fig. 8, the voltage value in the on state and the voltage value in the off state are converted into high and low level signals for the main control chip to recognize through the MOS transistor Q6.
Two-way load work detection unit
Referring to fig. 9, by checking the current between the two touch points, and filtering through the U7 rectifier bridge, the U9 optical coupler is isolated from strong and weak current, and converted into a high and low level signal that can be identified by the main control chip.
Three-way load work detection unit
Referring to fig. 10, by checking the current between the two touch points, and filtering through the U8 rectifier bridge, the U10 optical coupler is isolated from strong and weak current, and converted into a high and low level signal that can be identified by the main control chip.
Referring to fig. 11, a key operation detection unit is shown.
Referring to fig. 12, the status indicator lamp is turned on or off.
Master control unit
Referring to fig. 13, the main control chip is M1, which is a ZigBee/WiFi/bluetooth module of the SOC system, Q3-5, Q7-9 is mos tube, and converts the control signal of the main control chip into the driving signal for controlling the control element. U5 is LDO, also can be DC-DC converting circuit, converts 5V to 3.3V, supplies power for M1. U6 is a reset chip that provides power-on delay and low voltage reset action for M1.
Referring to fig. 2, fig. 2 shows that 3-way double-control switches are matched with 3 mechanical switches to realize local double-control of 3 lamps, and it can be known that a live wire L is connected to a live wire/1-way load line, a live wire/2-way load line and a live wire/3-way load line of the 3-way double-control switch of the present application. The first movable contact and the second movable contact of each path are respectively connected to two movable contacts of a mechanical switch, the fixed point of the mechanical switch is connected to one end of a lamp load, and the other end of the lamp load is connected to a zero line N. The three control paths are mutually independent.
Note: and the fire line/one load line corresponds to L in the schematic diagram. The first contact of one way corresponds to "L1" in the schematic diagram. The second contact of one way corresponds to "L2" in the schematic diagram. And the principle diagram corresponding to the live line/two-way load line is 'LB'. The first contact of the two paths corresponds to "LB 1" in the schematic diagram. The second contact of the two paths corresponds to "LB 2" in the schematic diagram. And the live wire/three-way load wire corresponds to 'LC' in the schematic diagram. The first contact of the three paths corresponds to "LC 1" in the schematic diagram. "LC 2" in the schematic diagram corresponding to the second contact of the three paths "
Description of the first switch operation
Referring to fig. 14, the current mechanical switch and one of the switch elements are in the on state, and the current flow is shown by the orange arrow. Under the current state, the lamp is in the on state, and at this moment intelligence switch has the on-state to get the power supply unit and maintains the work for the product and provide the power, and the on-state is got the power supply unit and is shown as following figure with a switch element all the way, and the live wire voltage waveform is in when positive half wave, and L1_ in level is higher than L1_ out1, and the body diode that the electric current was through MOS pipe Q1 at this moment is through a switch element, mechanical switch, lamps and lanterns arrival zero line N all the way, and the on-state is got the power supply. When the voltage of a live wire is IN a negative half wave, the level of L1_ IN is lower than that of L1_ out1, a body diode of an MOS transistor Q1 is IN a cut-off state, the voltage charges a capacitor C3 through a diode D4, the voltage value of the voltage Vin1 rises, Vin1 is the voltage Vin after passing through a diode D8 and is connected to an LDO U1, the LDO U1 outputs stable 2.1V voltage, the voltage is input to an IN-pin of an operational amplifier U2 through a resistor R7, and the voltage of the IN-pin is 2.1V at the moment. Vin is also connected to a DC-DC chip U3, which converts the input voltage Vin to a 5.2V DC voltage to power the switching element and the main control unit. With the rise of the voltage value of Vin1, when the voltage rises to 10V, Vin1 passes through a 10V zener diode D5 and starts to charge a capacitor C7, when the voltage of Vin1 rises to above 12.1V, the voltage on C7 is higher than 2.1V, that is, the voltage of an IN + pin of an operational amplifier U2 is higher than 2.1V, at this time, the voltage of the IN + pin of the operational amplifier U2 is greater than an IN-voltage, an OUT pin of the operational amplifier U2 outputs a high level, MOS transistors Q1 and Q2 are turned on, and the voltage of 2.1V passes through resistors R6 and R7 to be divided, and 1.05V is input to the IN-pin of the operational amplifier; since the MOS transistor Q1 is turned on, the L1_ in level is equal to L1_ out1, and the diode D4 is in an off state. With the continuous operation and power consumption of the whole circuit, the voltage of the Vin1 is reduced, so that the voltage of the capacitor C7 is reduced, when the voltage is reduced to be below 1.05V, the voltage of the IN-pin (1.05V) of the operational amplifier is higher than the voltage of the IN + pin of the operational amplifier (<1.05V), the OUT pin of the operational amplifier outputs a low level, the MOS transistors Q1 and Q2 are cut off, and when the negative half cycle of the live wire L comes, the charging process is repeated. In the repeated charging process, the Vin voltage is always higher than 10V, after the Vin voltage is divided by the resistors R29 and R34 by the load detection unit, 0.9V is higher than the threshold voltage of the G pole of the MOS transistor Q6, the MOS transistor is turned on, and the output signal of the load operation detection unit is 0V. The main control unit detects a 0V signal output by one load working unit, judges that the current lamp is in an open state, opens one path of indicating lamps of the switch, and synchronizes the lamp state of the path to the remote terminal and the cloud.
When the first street lamp is in the off state, the working principle of the first street lamp is that
If the load light is to be switched off the state of the mechanical switch or the state of the switching element of the present application is switchable, the lower diagram is the state of the mechanical switch.
Referring to fig. 15, the current mechanical switch and one-way switch element are in an off state, and the current flow is shown by an orange arrow, which is off at the switch. Under the current state, the lamp is in a closed state, at the moment, the intelligent switch provides power for the product to maintain work through the off-state power supply unit, the off-state power supply unit and one switch element are shown in the following figures, at the moment, 220V alternating current high voltage exists between L and L1/L2, after the alternating current high voltage is rectified and filtered through D15/D18, direct current voltage VDC is output through an AC-DC reverse excitation type power circuit, and 5.2V voltage is output through a diode D16 to supply power for the switch element and the main control unit. At the moment, the on-state power supply unit is in an off state, the Vin voltage is equal to 5.2V, one load detection unit divides the Vin voltage by resistors R29 and R34 to be 0.47V which is lower than the threshold voltage of the G pole of the MOS transistor Q6, the MOS transistor is cut off, and the output signal of one load operation detection unit is 3.3V. The main control unit detects a 3.3V signal output by one load working unit, judges that the current lamp is in a closed state, closes one switch indicator lamp, and synchronizes the lamp state of the current lamp to the remote terminal and the cloud.
The lower diagram is the state of the switching smart switch if the load light fixture is to be switched off, either the state of the mechanical switch or the state of the switching element of the present application.
Referring to fig. 16, when the first button of the button operation detection unit is pressed, the level of the button S1 is low, the main control unit detects that the level of the button S1 is low, the main control unit determines that the first button is operated, and outputs the level of the actuation signal control signal K1_ R/K1_ a, so that the contact of the relay K1 is turned over, and if the original fixed contact is connected with the first movable contact, the fixed contact is switched to be connected with the second movable contact, thereby achieving the on-off of the circuit. And judging the on-off condition of the current load lamp according to the output signal of the monitoring load work detection unit, and outputting a corresponding LED lamp control signal to control the state of the first LED lamp.
Description of the second switching operation
Similarly, when the second key of the key operation detection unit is pressed, the level of the key S2 is low, the main control unit detects that the level of the key S1 is low, the main control unit judges that the second key is operated and outputs the level of an action signal control signal K2_ R/K2_ a, so that the contact of the relay K2 is turned over, and if the original fixed contact is connected with the first movable contact, the fixed contact is switched to be connected with the second movable contact, thereby realizing the on-off of the circuit. And judging the on-off condition of the current load lamp according to the output signal of the monitoring two-way load work detection unit, and outputting a corresponding LED lamp control signal to control the state of the second-way LED lamp.
Referring to fig. 17, the mechanical switch and the two-way switch element are in a conducting state, and a current is indicated as orange, and can flow through the lamp load, at this time, the lamp load is in an open state, and at this time, the LB2 (the second movable contact) of the two-way load operation detection unit is in an open state, so that no current passes through the emitter of the opto-coupler U9 at the front end of the two-way load operation detection unit, the collector of the opto-coupler U9 is in an open state, a voltage of 3.3V is provided at pin 1 (G pole) of the MOS transistor Q10, the MOS transistor Q10 is conducting, a signal2 signal output by the two-way load operation detection unit is at a low level, the main control unit detects that the signal2 signal is at a low level, determines that the second-way lamp is in an open state, turns on the indicator light of.
Working principle of two-way load working detection unit when second road lamp is in off state
Referring to fig. 18, the mechanical switch and the two-way switch element are in an off state, a main current is indicated as orange, and cannot flow through the lamp load, at this time, the lamp load is in an off state, at this time, LB2 (second movable contact) of the two-way load operation detection unit is connected to N through the lamp load, and LB1 (first movable contact) of the two-way load operation detection unit is connected to a live wire through the fixed contact LB, so that a voltage difference exists between LB1 and LB2, the voltage is about 220V, at this time, the current flows through the current limiting resistor R38, the rectifier bridge U7, the emitter of the optical coupler U9 and the current limiting resistor R44, and returns to LB 2. The front end of the two-way load work detection unit is provided with an emitter of current passing through an optocoupler U9, a collector of the optocoupler U9 is in a conducting state, a pin 1 (G pole) of an MOS tube Q10 is provided with 0V voltage, the MOS tube Q10 is cut off, a signal2 signal output by the two-way load work detection unit is a 3.3V high level, the main control unit detects that a signal2 signal is a high level, the second-way lamp is judged to be in a closing state, an indicator lamp of a second-way switch is closed, and the lamp state of the way is synchronized to a remote terminal and a cloud end.
The operation and detection logic of the 3 rd switch is the same as that described for the second switch.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a two accuse switches of three routes intelligence based on single live wire installation which characterized in that includes: the power supply comprises an on-state power supply unit, an off-state power supply unit, a first-path switching element, a second-path switching element, a third-path switching element and a main control unit;
the on-state power taking power supply unit is connected with one path of load live wire, one path of switch element and the main control unit;
the main control unit is connected with the switching element;
the switching element of one path is connected with the first movable contact of one path of load and the second movable contact of the load of the other path;
the off-state power taking power supply unit comprises the one-way load live wire, the main control unit, the one-way load first movable contact and the one-way load second movable contact;
the two-way switch element is connected with the two-way load live wire, the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load; and
the three-way switch element is connected with a three-way load live wire, the main control unit, a first movable contact of the three-way load and a second movable contact of the three-way load.
2. The single fire wire installation-based three-way intelligent double control switch of claim 1, further comprising:
and the key operation detection unit is connected with the main control unit.
3. The single fire wire installation-based three-way intelligent double control switch of claim 2, further comprising:
and the switch state indicator lamp is connected with the main control unit.
4. The single fire wire installation-based three-way intelligent double control switch of claim 3, further comprising:
and the load work detection unit is connected with the on-state power taking power supply unit and the main control unit.
5. The single fire wire installation-based three-way intelligent double control switch of claim 4, further comprising:
and the two-way load working detection unit is connected with the main control unit, the first movable contact of the two-way load and the second movable contact of the two-way load.
6. The single fire wire installation-based three-way intelligent double control switch of claim 5, further comprising:
and the three-way load work detection unit is connected with the main control unit, the first movable contact of the three-way load and the second movable contact of the three-way load.
7. The single fire wire installation-based three-way intelligent double control switch of claim 6, further comprising:
one end of the first mechanical switch is connected with one end of the load, and the other end of the first mechanical switch comprises:
the first movable contact of the load of the same path; and
and the second movable contact of the load of the same path.
8. The single fire wire installation-based three-way intelligent double control switch of claim 7, further comprising:
one end of the second mechanical switch is connected with one end of the two-way load, and the other end of the second mechanical switch comprises:
the first movable contact of the two-way load; and
and the second movable contact of the two-way load.
9. The single fire wire installation-based three-way intelligent double control switch of claim 8, further comprising:
one end of the third mechanical switch is connected with one end of the three-way load, and the other end of the third mechanical switch comprises:
a first moving contact of the three loads; and
and the second movable contact of the three loads.
10. The single fire wire installation-based three-way intelligent dual-control switch of claim 9, wherein the other end of the one way load, the other end of the two way load, and the other end of the three way load are connected to a neutral line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152982.1A CN111278185A (en) | 2020-03-06 | 2020-03-06 | Three routes intelligence double control switch based on single live wire installation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010152982.1A CN111278185A (en) | 2020-03-06 | 2020-03-06 | Three routes intelligence double control switch based on single live wire installation |
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| CN111278185A true CN111278185A (en) | 2020-06-12 |
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| CN202010152982.1A Pending CN111278185A (en) | 2020-03-06 | 2020-03-06 | Three routes intelligence double control switch based on single live wire installation |
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| CN111629494A (en) * | 2020-04-29 | 2020-09-04 | 杭州涂鸦信息技术有限公司 | Intelligent switch and double-control switch |
| CN112327647A (en) * | 2020-11-06 | 2021-02-05 | 北京小米移动软件有限公司 | Controllable switch, double-control switch and control system |
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| CN113825288A (en) * | 2021-09-30 | 2021-12-21 | 天津华来科技股份有限公司 | Feedback circuit for single live wire power-taking switch state |
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| CN113825288B (en) * | 2021-09-30 | 2024-06-25 | 天津华来科技股份有限公司 | Feedback circuit for single-fire power-taking switch state |
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