Intelligent single-live-wire switch control circuit, system and method

Abstract

The invention provides an intelligent single-live-wire switch control circuit, system and method. The control circuit comprises a light-on electricity-taking module, a light-off electricity-taking module, an LOD linear voltage stabilization module, a charging and discharging module and a wireless intelligent module. The light-on power-taking module is used for supplying power to the load, the LOD linear voltage stabilization module, the charging and discharging module and the wireless intelligent module when being turned on within any preset time period; within a first preset time period, the light-off electricity-taking module is turned on, and when the light-on electricity-taking module is turned off, the light-off electricity-taking module is used for supplying power to the LOD linear voltage stabilization module, the charging and discharging module and the wireless intelligent module; and in a second preset time period, when the lamp-off electricity-taking module is switched off and the lamp-on electricity-taking module is switched off, the charging and discharging module is used for supplying power to the wireless intelligent module. According to the control circuit, the spanning fire generation time of the load is controlled, the spanning fire influence is eliminated, and the user experience is improved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of switch equipment, and in particular to an intelligent single-fire switch control circuit, system and method. Background Art

[0002] The intelligent single-fire switch is a switch device that can work only by connecting to the live wire. At present, almost all single-fire switch products on the market have basically the same way of taking power from the system, which is to take power in both the on and off states to ensure the normal operation of the overall system. First of all, in the first state, when the single-fire switch is in the light-on state, the system takes power by controlling the switching time of the MOS tube connected in series in the load circuit to provide power for the subsequent stage. Secondly, in the second state, when the single-fire switch is in the light-off state, the system takes power between the load end and the neutral line. At this time, the switching power supply circuit is responsible for the power supply work, but because the subsequent control system requires a steady supply of power to maintain normal operation, there is always a weak current passing through the load bulb when the light is turned off, which will cause the bulb to have a weak light or flicker, commonly known as ghost fire. Once this phenomenon occurs at night, it will greatly affect the user experience. Summary of the invention

[0003] The purpose of the embodiments of the present disclosure is to provide an intelligent single fire switch control circuit, system and method, so as to solve the above-mentioned problems existing in the prior art.

[0004] In order to achieve the above objectives, the technical solutions adopted by the embodiments of the present disclosure are as follows:

[0005] The first aspect of the disclosed embodiment provides an intelligent single-fire switch control circuit, which is applied to different preset time periods to control the circuit, and the circuit includes: a light-on power-drawing module, a light-off power-drawing module, a LOD linear voltage stabilizing module, a charging and discharging module and a wireless intelligent module; the live wire end of the light-on power-drawing module is used to connect the live wire, and the neutral wire end is used to connect the load; the power supply end of the light-on power-drawing module is connected to the power supply end of the LOD linear voltage stabilizing module; the power supply end of the light-off power-drawing module is connected to the load, and the power supply end of the light-off power-drawing module is connected to the power supply end of the LOD linear voltage stabilizing module; the power supply end of the LOD linear voltage stabilizing module is connected to the power supply end of the wireless intelligent module; the LOD linear voltage stabilizing module is connected to the charging and discharging module through a power supply bus; the wireless intelligent module The energy module is respectively connected to the light-on power-drawing module, the light-off power-drawing module and the charging and discharging module; the light-on power-drawing module, when turned on in any preset time period, is used to supply power to the load, the LOD linear voltage stabilizing module, the charging and discharging module and the wireless intelligent module, so that the charging and discharging module is charged; within a first preset time period, the light-off power-drawing module is turned on, and when the light-on power-drawing module is turned off, the light-off power-drawing module is used to supply power to the LOD linear voltage stabilizing module, the charging and discharging module and the wireless intelligent module, so that the charging and discharging module is charged; within a second preset time period, the light-off power-drawing module is turned off, and when the light-on power-drawing module is turned off, the charging and discharging module is used to supply power to the wireless intelligent module.

[0006] Exemplarily, the light-on power-drawing module includes: a load relay driving circuit and a MOS tube power-drawing circuit; the load relay driving circuit is connected to the wireless intelligent module, and is used to control the on and off of the load relay to turn the load on or off; the MOS tube power-drawing circuit is used to control the switch of the MOS tube to complete the power-drawing work when the load relay is on.

[0007] Exemplarily, the control circuit also includes: a first power supply branch line, a second power supply branch line, a fifth diode D5, a sixth diode D6 and a seventh diode D7, the two ends of the two power supply branches are respectively connected to the MOS tube power supply circuit and the LOD linear voltage regulator module; the fifth diode D5 and the sixth diode D6 are arranged on the second power supply branch line, and the positive poles face each other; the seventh diode D7 is arranged on the first power supply branch line, the negative pole is connected to the MOS tube power supply circuit, and the positive pole is connected to the LOD linear voltage regulator module; the load relay drive circuit includes: a relay K1 and a drive circuit, the L-MOS pin of the relay is connected to the MOS tube power supply circuit, the load output LOUT pin is used to connect the load, and the RELAY ON and RELAY OFF of the drive circuit The OFF pins are respectively connected to the corresponding pins of the wireless intelligent module; the MOS tube power supply circuit includes: a MOS tube, a fourth diode D4, a fourth resistor R4, a fifth resistor R5, a fourth capacitor C4 and a single-fire power supply chip U1; the drain D of the MOS tube is connected to the L-MOS pin of the relay and one end of the two power supply branches, the source S is connected to the live wire and grounded, and the gate G is connected to the GATE pin of the single-fire power supply chip U1; one end of the fourth resistor R4 is connected to the first power supply branch, the other end of the fourth resistor R4 is connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is grounded; the fourth diode D4 is arranged on the second power supply branch, its cathode is connected to the drain D of the MOS tube, its anode is connected to one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 is connected to the other end of the fifth resistor R5; the FB2 pin of the single-fire power supply chip U1 is connected between the fourth resistor R4 and the fifth resistor R5, and the VIN pin is connected between the fourth diode D4 and the fourth capacitor C4.

[0008] Exemplarily, the light-off power-drawing module includes: an AC input control circuit and a switching power supply circuit; the AC input control circuit is connected to the wireless intelligent module, and is used to control the on and off of the AC mains input to control the activation or shutdown of the switching power supply circuit; the switching power supply circuit is used to convert the AC mains into a low-voltage DC power supply for use by subsequent circuits.

[0009] Exemplarily, the switching power supply circuit includes: a first diode D1, a second diode D2, a third diode D3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3, an AC-DC switching power supply chip U3 and a transformer T1; the cathode of the first diode D1 is connected to the AC input control circuit, the anode of the first diode D1 is connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded; the transformer T1 has a first primary winding, a second primary winding and a secondary winding; the first end of the first primary winding is connected to the anode of the first diode D1, and the second end of the first primary winding is connected to the DRAIN pin of the AC-DC switching power supply chip U3; the first end of the second primary winding is connected to the cathode of the third diode D3, and the anode of the third diode D3 is connected to the DRAIN pin of the AC-DC switching power supply chip U3; One end of the third capacitor C3 is connected, the other end of the third capacitor C3 is grounded, and the VCC pin of the AC-DC switching power supply chip U3 is connected to the positive electrode of the third diode D3; the second end of the second primary winding is grounded; the first end of the secondary winding is connected to the negative electrode of the second diode D2, the positive electrode of the second diode D2 is connected to one end of the second capacitor C2, and the positive electrode of the second diode D2 is also connected in series with the first resistor R1 and the third resistor R3 and then grounded; the second end of the secondary winding is grounded; the FB pin of the AC-DC switching power supply chip U3 is connected between the first resistor R1 and the third resistor R3, the GND pin is grounded, and the CS pin is connected to the second resistor R2 and then grounded; the control circuit includes: when the second power supply branch line is used, the positive electrode of the second diode D2 is connected to the second power supply branch line and between the fifth diode D5 and the sixth diode D6.

[0010] Exemplarily, the LOD linear voltage regulator module is used to reduce the front-stage power supply voltage to 3.3V to power the wireless intelligent module; the LOD linear voltage regulator module includes: a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an LDO chip; the VIN1 pin and the VIN2 pin of the LDO chip are respectively connected to the power supply bus, and the GND pin of the LDO chip is grounded; the VOUT pin of the LDO chip is respectively connected to one end of the sixth capacitor C6, one end of the seventh capacitor C7 and the VCC interface of the wireless intelligent module, and the other ends of the sixth capacitor C6 and the seventh capacitor C7 are respectively grounded; one end of the fifth capacitor C5 is connected to one end of the power supply bus, and the other end of the fifth capacitor C5 is grounded; when the control circuit includes: a seventh diode D7, one end of the fifth capacitor C5 is connected to the positive electrode of the seventh diode D7.

[0011] Exemplarily, the charging and discharging module includes: a battery management module and a charging and discharging battery. The battery management module is used to manage the charging and discharging of the energy storage battery; the battery management module is connected to a power supply bus, and the other end of the power supply bus is respectively connected to the power output ends of the light-on power module and the light-off power module.

[0012] Exemplarily, the wireless intelligent module is connected to the LOD linear voltage regulator module and the battery management module and the charge and discharge battery of the charge and discharge module respectively; the wireless intelligent module is used to control the normal operation and wireless remote control of the entire single-fire control circuit.

[0013] A second aspect of the embodiments of the present disclosure provides an intelligent single fire switch control system, the system comprising: the intelligent single fire switch control circuit as described above.

[0014] A third aspect of the disclosed embodiment provides an intelligent single fire switch control method, which is applied to control a circuit in different preset time periods. The control method of the intelligent single fire switch control circuit as described above includes:

[0015] Divide the 24 hours of the day into a first preset time period of 7:01-19:59 and a second preset time period of 20:00-7:00;

[0016] In different time periods, corresponding control is performed, and in the first preset time period, the light-off power-taking module is turned on;

[0017] Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module;

[0018] Turn off the light-on power module, and the light-off power module is used to power the subsequent circuit, which includes: LOD linear voltage regulator module, wireless intelligent module power supply and charging and discharging module, and also stores energy for the charging and discharging module;

[0019] In the second preset time period, the light switch power supply module is disconnected;

[0020] Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module;

[0021] The light-on power module is turned off, and the charging and discharging module is used to supply power to the wireless intelligent module.

[0022] The beneficial effects of the embodiments of the present disclosure are:

[0023] The control circuit of the disclosed embodiment controls the opening and closing of the light-on power circuit and the light-off power circuit in different preset time periods through a wireless intelligent module, controls the time when the load generates ghost lights, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present disclosure provides a schematic diagram of a smart single fire switch control circuit structure;

[0025] Figure 2The present disclosure provides a schematic diagram of a load relay driving circuit in an intelligent single fire switch control circuit;

[0026] Figure 3 The present disclosure provides a schematic diagram of a MOS tube power supply circuit structure in an intelligent single fire switch control circuit;

[0027] Figure 4 The embodiment of the present disclosure provides a schematic diagram of a working framework of a smart single-fire switch control circuit for turning on a light and taking electricity;

[0028] Figure 5 The present disclosure provides a schematic diagram of the structure of an AC input control circuit in an intelligent single-fire switch control circuit;

[0029] Figure 6 The present disclosure provides a schematic diagram of the structure of a switch power supply circuit in an intelligent single-fire switch control circuit;

[0030] Figure 7 The embodiment of the present disclosure provides a schematic diagram of a working framework of turning off lights and taking electricity for an intelligent single-fire switch control circuit;

[0031] Figure 8 The present disclosure provides a schematic diagram of a LOD linear voltage stabilization circuit in an intelligent single fire switch control circuit;

[0032] Fig. 9 The present disclosure provides a schematic diagram of the structure of a battery management module in an intelligent single fire switch control circuit;

[0033] Fig.10 The present disclosure provides a schematic diagram of a wireless intelligent module in an intelligent single fire switch control circuit;

[0034] Fig.11 The present invention discloses a flow chart of a control method for an intelligent single fire switch control circuit. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the present disclosure more clear, the embodiment of the present disclosure is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to explain the embodiment of the present disclosure and are not used to limit the embodiment of the present disclosure.

[0036] like Figure 1As shown, the first aspect of the disclosed embodiment proposes an intelligent single-fire switch control circuit, which is applied to different preset time periods to control the circuit, and the control circuit includes: a light-on power-taking module 1, a light-off power-taking module 2, a LOD linear voltage stabilizing module 3, a charging and discharging module 4 and a wireless intelligent module 5; the live wire end of the light-on power-taking module is used to connect the live wire, and the neutral wire end is used to connect the load; the power supply end of the light-on power-taking module 1 is connected to the power supply end of the LOD linear voltage stabilizing module; the power supply end of the light-off power-taking module 2 is connected to the load, and the power supply end of the light-off power-taking module is connected to the power supply end of the LOD linear voltage stabilizing module 3; the power supply end of the LOD linear voltage stabilizing module is connected to the power supply end of the wireless intelligent module; the LOD linear voltage stabilizing module is connected to the charging and discharging module through a power supply bus block; the wireless intelligent module is respectively connected to the light-on power-taking module, the light-off power-taking module and the charging and discharging module; the light-on power-taking module, when turned on in any preset time period, is used to supply power to the load, the LOD linear voltage stabilizing module 3, the charging and discharging module 4 and the wireless intelligent module 5, so that the charging and discharging module is charged; within the first preset time period, the light-off power-taking module 2 is turned on, and when the light-on power-taking module is turned off, the light-off power-taking module is used to supply power to the LOD linear voltage stabilizing module, the charging and discharging module and the wireless intelligent module, so that the charging and discharging module is charged; within the second preset time period, the light-off power-taking module is turned off, and when the light-on power-taking module is turned off, the charging and discharging module is used to supply power to the wireless intelligent module.

[0037] The live wire end of the light-on power module 1 is connected to the live wire, the neutral wire end is used to connect one end of the load, and the other end of the load is connected to the neutral wire. The light-on power module is connected to the two power supply ends of the LOD linear voltage regulator module through two power supply branches. The power supply branch includes: a first power supply branch and a second power supply branch. The first power supply branch is provided with a fifth diode D5 and a sixth diode D6, the positive electrode of the fifth diode D5 is connected to the light-on power module, the negative electrode of the fifth diode D5 is connected to the negative electrode of the sixth diode D6, and the positive electrode of the sixth diode D6 is connected to the first power supply end VIN1 of the LOD linear voltage regulator module. The second power supply branch is provided with a seventh diode D7, the negative electrode of the seventh diode D7 is connected to the light-on power module 1, and the positive electrode of the seventh diode D7 is connected to the power supply bus in the LOD linear voltage regulator module. The power supply end of the LOD linear voltage regulator module is connected to the power supply end of the wireless intelligent module to supply power to it, and the LOD linear voltage regulator module is connected to the charging and discharging module through the power supply bus to supply power to it and store energy in the battery therein. The power supply end of the light-off power module 2 is connected to the load, and the power supply end of the light-off power module 2 is connected to the first power supply end VIN1 of the LOD linear voltage regulator module through the first power supply branch line. Specifically, the power supply end of the light-off power module 2 is connected to the first power supply branch line between the fifth diode D5 and the sixth diode D6. The load can be a lamp. The wireless intelligent module is the main control module, which is used for logical instruction processing of the device. The module also has a zigbee wireless communication function. The user can interact with the device on the APP side and issue control switch instructions, etc. Therefore, the main control can also read the real time on the network through the zigbee transmission function to control the opening and closing of the light-off power module according to different preset time periods. The wireless intelligent module can also control the opening and closing of the light-on power module.

[0038] The embodiment of the present disclosure describes the working principle of the control circuit in two switch states (light on state and light off state) in combination with a preset time period:

[0039] like Fig.11 As shown, after the single fire switch control circuit is powered on and started normally, the wireless intelligent module first performs the network distribution operation. Only after the network distribution is successful, it reads whether the time is the second preset time period, that is, night, or the first preset time period, that is, daytime. Otherwise, it directly enters the normal working mode. This mechanism is used to determine whether to enable the energy storage battery power supply and determine the switch state of the AC mains input control circuit.

[0040] Secondly, as long as the control circuit reads that the time is night, the light-off power module is disconnected regardless of whether the light is on or off, that is, the AC input control circuit mentioned later is disconnected. At this time, the control circuit is powered by the energy storage battery or the power from the light. On the contrary, if it is daytime, it needs to be in the on state. At this time, the control circuit is powered by the switching power supply or the MOS tube for turning on the light (depending on the state of the load switch).

[0041] The intelligent single-fire switch control circuit of the disclosed embodiment can avoid the generation of ghost lights at the source by completely cutting off the AC power supply of the single-fire switch at night when the single-fire switch turns off the light.

[0042] like Figure 2 and Figure 3 As shown, as an example of a light-on power-drawing module, the light-on power-drawing module 1 includes: a load relay driving circuit and a MOS tube power-drawing circuit; the load relay driving circuit is connected to the wireless intelligent module, and is used to control the on and off of the load relay to determine whether the AC mains forms a loop here, and its purpose is to turn on or off the load; the MOS tube power-drawing circuit is used to control the switch of the MOS tube to complete the power-drawing work when the load relay is on.

[0043] The load relay drive circuit and the MOS tube power supply circuit are connected in series to the live wire. The load relay drive circuit is connected to the wireless intelligent module to control the on and off of the relay, thereby controlling the on and off of the AC mains input and determining the switch of the load lamp. The MOS tube power supply circuit is used to control the switch of the MOS tube to complete the power supply work when the load relay is on.

[0044] like Figure 1 As shown, the control circuit also includes: a first power supply branch line, a second power supply branch line, a fifth diode D5, a sixth diode D6 and a seventh diode D7, and the two ends of the two power supply branches are respectively connected to the MOS tube power supply circuit and the LOD linear voltage regulator module; the fifth diode D5 and the sixth diode D6 are arranged on the second power supply branch line, and the positive poles face each other; the seventh diode D7 is arranged on the first power supply branch line, the negative pole is connected to the MOS tube power supply circuit, and the positive pole is connected to the LOD linear voltage regulator module.

[0045] like Figure 2 As shown, the load relay driving circuit includes: a relay K1, an L-MOS pin of the relay is connected to a MOS tube power taking circuit, a load output LOUT pin is used to connect a load, and RELAY ON and RELAY OFF pins of the driving circuit are respectively connected to corresponding pins of a wireless intelligent module.

[0046] like Figure 3As shown, the MOS tube power supply circuit includes: a MOS tube, a fourth diode D4, a fourth resistor R4, a fifth resistor R5, a fourth capacitor C4 and a single-fire power supply chip U1; the drain D of the MOS tube is connected to the L-MOS pin of the relay and one end of the two power supply branches, the source S is connected to the live wire and grounded, and the gate G is connected to the GATE pin of the single-fire power supply chip U1; one end of the fourth resistor R4 is connected to the first power supply branch, the other end of the fourth resistor R4 is connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is grounded; the fourth diode D4 is arranged on the second power supply branch, the cathode of the fourth diode D4 is connected to the drain D of the MOS tube, the anode of the fourth diode D4 is connected to one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 is connected to the other end of the fifth resistor R5; the FB2 pin of the single-fire power supply chip U1 is connected between the fourth resistor R4 and the fifth resistor R5, and the VIN pin is connected between the fourth diode D4 and the fourth capacitor C4.

[0047] like Figure 2 As shown, the load driving circuit is a hybrid circuit composed of a magnetic latching relay, a MOS tube, a diode, a resistor, and a capacitor. The L-MOS pin of the relay is connected to the MOS tube power circuit, and the LOUT pin is used to connect the load. The RELAY ON and RELAY OFF pins of the driving circuit are connected to the 5RELAY ON and RELAY OFF pins of the wireless intelligent module respectively, and the wireless intelligent module controls the switch of the relay. The 5V interface is connected to the VCC end of the 5.5V power supply bus.

[0048] like Figure 3 As shown, in the single-fire power supply chip U1 in the MOS tube power supply circuit, the VIN interface is the power input of the chip. The FB2 interface sets the power supply voltage through resistors R4 and R5. The GATE interface controls the switch of the MOS tube Q1. The GND interface connects the chip ground to the system ground. RESET is the chip reset interface.

[0049] like Figure 4As shown, when the single-fire switch device enters the light-on state, the load relay drive circuit is turned on, and the AC power supply N forms a loop from the load lamp through the load relay K1, the MOS tube Q1, and then to the L end. At this time, the MOS tube power supply circuit starts to work. After the load relay loop is turned on, the voltage difference between the two ends of the rectifier diode D1 at the input end of the switch power supply circuit becomes very small, causing the switch power supply circuit to stop working. As the MOS tube power supply circuit operates, the power supply system will accurately control the switch on time of the MOS tube according to the preset value set by the circuit to generate a corresponding voltage difference, and then obtain power. First, the power supply is rectified by the diode D4 to supply power to its own power supply system, and then the other way is rectified by the diode D7 and filtered by the capacitor C5 to enter the power supply bus. Then the power supply is divided into two ways from the power supply bus to supply the next stage. First, the first way is processed by the LDO linear voltage regulator circuit and then output to the wireless intelligent module for use. Secondly, the second way is supplied to the battery management circuit, and the energy storage battery is charged by the battery management circuit. At this time, the power supply of the entire system is completely provided by the MOS tube power supply circuit. The above is the working principle of the single fire switch energy storage system when the light is on. Its main purpose is to complete the power supply work, provide power to the subsequent system and store energy at the same time.

[0050] like Figure 5 and Figure 6 As shown, as an example of a module for drawing power by turning off the lights, the module for drawing power by turning off the lights includes: an AC input control circuit and a switching power supply circuit; the AC input control circuit is connected to the wireless intelligent module, and is used to control the on and off of the AC mains input, so as to control the activation or shutdown of the switching power supply circuit; the switching power supply circuit is used to convert the AC mains into a low-voltage DC5.5V power supply for use by the subsequent circuit.

[0051] The 5.5V pin of the AC input control circuit is connected to the 5.5V VCC end of the power supply bus, the AC_ON pin of the AC input control circuit is connected to the AC_ON pin of the wireless intelligent module, and the GND pin of the AC input control circuit is grounded. The post-stage circuit in this control circuit refers to the LOD linear voltage regulator module, the charging and discharging module and the wireless intelligent module.

[0052] like Figure 6As shown in the figure, as an example of a switching power supply circuit, the switching power supply circuit includes: a first diode D1, a second diode D2, a third diode D3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3, an AC-DC switching power supply chip U3 and a transformer T1; the cathode of the first diode D1 is connected to the AC input control circuit, the anode of the first diode D1 is connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded; the transformer T1 has a first primary winding, a second primary winding and a secondary winding; the first end of the first primary winding is connected to the anode of the first diode D1, and the second end of the first primary winding is connected to the DRAIN pin of the AC-DC switching power supply chip U3; the first end of the second primary winding is connected to the cathode of the third diode D3, and the cathode of the third diode D3 is connected to the DRAIN pin of the AC-DC switching power supply chip U3; the cathode of the third diode D3 ... The positive electrode of the tube D3 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is grounded; the VCC pin of the AC-DC switching power supply chip U3 is connected to the positive electrode of the third diode D3; the second end of the second primary winding is grounded; the first end of the secondary winding is connected to the negative electrode of the second diode D2, the positive electrode of the second diode D2 is connected to one end of the second capacitor C2, and the positive electrode of the second diode D2 is also connected in series with the first resistor R1 and the third resistor R3 and then grounded; the second end of the secondary winding is grounded; the FB pin of the AC-DC switching power supply chip U3 is connected between the first resistor R1 and the third resistor R3, the GND pin is grounded, and the CS pin is connected to the second resistor R2 and then grounded; the control circuit includes: when the second power supply branch line is used, the positive electrode of the second diode D2 is connected to the second power supply branch line and between the fifth diode D5 and the sixth diode D6.

[0053] The VCC interface in the AC-DC switching power supply chip U3 is the power input of the chip. The FB interface is the voltage feedback terminal, which is used to stabilize the output voltage, and the GND interface is the chip ground to the system ground. The CS interface is the current feedback, which is used to limit the maximum output current. The DRAIN interface is the primary winding input terminal, which controls the charging and discharging energy of the transformer. Inside is a metal oxide field effect transistor.

[0054] like Figure 8As shown, as an example of an LOD linear voltage stabilization module, the LOD linear voltage stabilization module is used to reduce the front-stage power supply voltage to 3.3V to power the wireless intelligent module; the LOD linear voltage stabilization module includes: a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an LDO chip; the VIN1 pin and the VIN2 pin of the LDO chip are respectively connected to the power supply bus, and the GND pin of the LDO chip is grounded; the VOUT pin of the LDO chip is respectively connected to one end of the sixth capacitor C6, one end of the seventh capacitor C7 and the VCC interface of the wireless intelligent module, and the other ends of the sixth capacitor C6 and the seventh capacitor C7 are respectively grounded; one end of the fifth capacitor C5 is connected to one end of the power supply bus, and the other end of the fifth capacitor C5 is grounded; when the control circuit includes: a seventh diode D7, one end of the fifth capacitor C5 is connected to the positive electrode of the seventh diode D7.

[0055] The power supply bus is also connected to the anodes of the sixth diode D6 and the seventh diode D7. The LOD linear voltage regulator module reduces the DC5.5V direct current to 3.3V, and supplies power to the wireless intelligent module by connecting to the 3.3VCC pin of the wireless intelligent module.

[0056] like Figure 7 As shown, when the single-fire switch device enters the light-off state, the load relay drive circuit is closed, the relay K1 is not conducting, the L and N terminals of the AC power supply cannot be connected to form a loop, resulting in no voltage difference between the upper and lower ends of the MOS tube power supply circuit and stopping working. Because the AC power supply can flow into the switching power supply circuit normally and form a loop, the voltage difference between the two ends of the rectifier diode D1 at the input end becomes larger, and the switching power supply circuit starts to work. This circuit is responsible for converting the input AC mains into DC voltage, and outputs DC5.5V here. The output power passes through the reverse isolation diode D6 and is filtered by the C5 capacitor, and enters the system power supply bus. It is also divided into two paths to supply power and store energy to the subsequent wireless intelligent module and the battery management system. The switching power supply also needs to provide power to the light-on power supply system through the reverse isolation diode D5 to maintain normal operation. The above working principle is the process when the system is running in normal mode during the day. Once the system reads that the time is night, the single-fire switch system will control the disconnection of the AC power input, the switch power circuit will stop working, and the system will enter the battery power supply mode. At that time, the entire single-fire system is completely powered by the energy storage battery to maintain normal operation. In this mode, the user can still perform the switching action of the single-fire device through remote or local control. The battery power supply mode only works at night and when the lights are off. The system must read that the time is daytime or the device turns on the lights to exit this mode and switch to other power supply circuits for power supply.

[0057] like Fig. 9As shown in FIG. 1 , as an example of a charging and discharging module, the charging and discharging module includes: a battery management module and a charging and discharging battery. The battery management module is used to manage the charging and discharging of the energy storage battery; the battery management module is connected to a power supply bus, and the other end of the power supply bus is respectively connected to the power output end of the light-on power module and the light-off power module.

[0058] The battery management module is connected to the charge-discharge battery to charge it, and the charge-discharge battery is connected to the wireless intelligent module to provide power for it.

[0059] like Fig.10 As shown, the wireless intelligent module is connected to the LOD linear voltage regulator module and the battery management module and the charge and discharge battery of the charge and discharge module respectively; the wireless intelligent module is used to control the normal operation of the entire single-fire control circuit and wireless remote operation.

[0060] The wireless intelligent module controls whether the battery power supply mode is enabled. The wireless intelligent module can also control the rechargeable battery to use the battery for power supply during the control circuit startup, network configuration and network search. Control whether the battery power supply mode is enabled.

[0061] The disclosed embodiment can completely solve the ghost light problem of the load light. And through the control of the intelligent module, the system can temporarily use the battery for power supply during the startup period, or during the network distribution and network search period, and then switch the power supply mode of the system after the system is stable or successfully connected to the network. Because the power consumption of the system is relatively large in the above states, it will cause the load light to flicker frequently. Using batteries to power the system in the above states can well solve the problem of large power consumption requirements of the system, solve the problem of load light flickering, and greatly improve the user experience.

[0062] A second aspect of the disclosed embodiments provides an intelligent single fire switch control system, the system comprising: the intelligent single fire switch control circuit as described above.

[0063] When the control system reads that the current time is night and the load relay is in the closed state (turn off the light), the single-fire AC input power supply end is controlled by relays and other components to control the AC input in a controllable manner, and then completely shut down the switch power supply to stop working. At this time, the current flowing through the load bulb is 0, which can completely eliminate the ghost light phenomenon of the load lamp. However, because the single-fire switch still needs to have the functions of remote operation and key switch, a battery energy storage system needs to be added, and the entire system is transformed into a battery-powered system to maintain the normal operation of the system. Of course, rechargeable and dischargeable batteries are required here. The switching of the system power supply mode is based on the automatic control of the intelligent module. The single-fire system can charge the battery during the day or when the bulb is turned on. When the light is turned off at night, the battery will power the entire system. The day / night time here is not fixed. Users can customize the time interval on the smart APP end to achieve a more intelligent control effect.

[0064] A third aspect of the disclosed embodiment provides an intelligent single fire switch control method, which is applied to control a circuit in different preset time periods. The control method of the intelligent single fire switch control circuit as described above includes:

[0065] Step S1, dividing the 24 hours of the day into a first preset time period of 7:01-19:59 and a second preset time period of 20:00-7:00.

[0066] Step S2: perform corresponding control in different time periods, and turn on the light-off power supply module in the first preset time period.

[0067] Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module;

[0068] Turn off the light-on power module, and the light-off power module is used to power the subsequent circuit, which includes: LOD linear voltage regulator module, wireless intelligent module power supply and charging and discharging module, and also stores energy for the charging and discharging module;

[0069] Step S3, in the second preset time period, disconnecting the light switch power supply module;

[0070] Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module;

[0071] The light-on power module is turned off, and the charging and discharging module is used to supply power to the wireless intelligent module.

[0072] The above is only a preferred implementation of the embodiment of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present disclosure. These improvements and modifications should also be considered as the protection scope of the embodiment of the present disclosure.

Claims

1. An intelligent single fire switch control circuit, used for controlling circuits in different preset time periods, characterized in that: The control circuit comprises: Light-on power module, light-off power module, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module; The live wire end of the light-on power module is used to connect the live wire, and the neutral wire end is used to connect the load; the power supply end of the light-on power module is connected to the power supply end of the LOD linear voltage regulator module; The power supply end of the light-off power supply module is connected to the load, and the power supply end of the light-off power supply module is connected to the power supply end of the LOD linear voltage regulator module; the power supply end of the LOD linear voltage regulator module is connected to the power supply end of the wireless intelligent module; the LOD linear voltage regulator module is connected to the charging and discharging module through the power supply bus; the wireless intelligent module is respectively connected to the light-on power supply module, the light-off power supply module and the charging and discharging module; The light-on power module, when turned on within any preset time period, is used to supply power to the load, the LOD linear voltage stabilization module, the charging and discharging module and the wireless intelligent module, so that the charging and discharging module can be charged; In the first preset time period, the light-off power module is turned on, and the light-on power module is turned off. The light-off power module is used to supply power to the LOD linear voltage regulator module, the charging and discharging module and the wireless intelligent module, so that the charging and discharging module is charged; In the second preset time period, the light-off power-taking module is turned off, and when the light-on power-taking module is turned off, the charging and discharging module is used to supply power to the wireless intelligent module.

2. The circuit according to claim 1, characterized in that The light-on power-taking module comprises: a load relay driving circuit and a MOS tube power-taking circuit; The load relay driving circuit is connected to the wireless intelligent module and is used to control the on and off of the load relay to turn on or off the load; The MOS tube power supply circuit is used to control the switch of the MOS tube to complete the power supply work when the load relay is turned on.

3. The circuit according to claim 2, characterized in that The control circuit also includes: a first power supply branch line, a second power supply branch line, a fifth diode D5, a sixth diode D6 and a seventh diode D7, the two ends of the two power supply branches are respectively connected to the MOS tube power circuit and the LOD linear voltage regulator module; the fifth diode D5 and the sixth diode D6 are arranged on the second power supply branch line, with the positive poles facing each other; the seventh diode D7 is arranged on the first power supply branch line, with the negative pole connected to the MOS tube power circuit and the positive pole connected to the LOD linear voltage regulator module; The load relay driving circuit comprises: a relay K1 and a driving circuit, the L-MOS pin of the relay is connected to the MOS tube power taking circuit, the load output LOUT pin is used to connect the load, and the RELAY ON and RELAY OFF pins of the driving circuit are respectively connected to the corresponding pins of the wireless intelligent module; The MOS tube power supply circuit includes: a MOS tube, a fourth diode D4, a fourth resistor R4, a fifth resistor R5, a fourth capacitor C4 and a single-fire power supply chip U1; The drain D of the MOS tube is connected to the L-MOS pin of the relay and one end of the two power supply branches, the source S is connected to the live wire and grounded, and the gate G is connected to the GATE pin of the single-live power chip U1; One end of the fourth resistor R4 is connected to the first power supply branch line, the other end of the fourth resistor R4 is connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is grounded; The fourth diode D4 is arranged on the second power supply branch line, the cathode of the fourth diode D4 is connected to the drain D of the MOS tube, the anode of the fourth diode D4 is connected to one end of the fourth capacitor C4, and the other end of the fourth capacitor C4 is connected to the other end of the fifth resistor R5; The FB2 pin of the single-fire power chip U1 is connected between the fourth resistor R4 and the fifth resistor R5, and the VIN pin is connected between the fourth diode D4 and the fourth capacitor C4.

4. The circuit according to any one of claims 1 to 3, characterized in that: The light-off power-taking module comprises: an AC input control circuit and a switching power supply circuit; The AC input control circuit is connected to the wireless intelligent module and is used to control the on and off of the AC mains input to control the activation or shutdown of the switching power supply circuit; The switching power supply circuit is used to convert AC mains power into low-voltage DC power for use by subsequent circuits.

5. The circuit according to claim 4, characterized in that The switching power supply circuit includes: a first diode D1, a second diode D2, a third diode D3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first resistor R1, a second resistor R2, a third resistor R3, an AC-DC switching power supply chip U3 and a transformer T1; The cathode of the first diode D1 is connected to the AC input control circuit, the anode of the first diode D1 is connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is grounded; The transformer T1 has a first primary winding, a second primary winding and a secondary winding; a first end of the first primary winding is connected to the anode of the first diode D1, and a second end of the first primary winding is connected to the DRAIN pin of the AC-DC switching power supply chip U3; The first end of the second primary winding is connected to the cathode of the third diode D3, the anode of the third diode D3 is connected to one end of the third capacitor C3, the other end of the third capacitor C3 is grounded, and the VCC pin of the AC-DC switching power supply chip U3 is connected to the anode of the third diode D3; the second end of the second primary winding is grounded; The first end of the secondary winding is connected to the cathode of the second diode D2, the anode of the second diode D2 is connected to one end of the second capacitor C2, the anode of the second diode D2 is also connected in series to the first resistor R1 and the third resistor R3 and then grounded; the second end of the secondary winding is grounded; The FB pin of the AC-DC switching power supply chip U3 is connected between the first resistor R1 and the third resistor R3, the GND pin is grounded, and the CS pin is connected to the second resistor R2 and then grounded; The control circuit includes: when the second power supply branch line is on, the anode of the second diode D2 is connected to the second power supply branch line and between the fifth diode D5 and the sixth diode D6.

6. The circuit according to any one of claims 1 to 3, characterized in that: The LOD linear voltage regulator module is used to reduce the voltage of the front-stage power supply to 3.3V to supply power to the wireless intelligent module; The LOD linear voltage stabilization module includes: a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an LDO chip; The VIN1 pin and the VIN2 pin of the LDO chip are respectively connected to the power supply bus, and the GND pin of the LDO chip is grounded; the VOUT pin of the LDO chip is respectively connected to one end of the sixth capacitor C6, one end of the seventh capacitor C7 and the VCC interface of the wireless intelligent module, and the other ends of the sixth capacitor C6 and the seventh capacitor C7 are respectively grounded; One end of the fifth capacitor C5 is connected to one end of the power supply bus, and the other end of the fifth capacitor C5 is grounded; When the control circuit includes: the seventh diode D7, one end of the fifth capacitor C5 is connected to the anode of the seventh diode D7.

7. The circuit according to claim 6, characterized in that The charging and discharging module includes: a battery management module and a charging and discharging battery; Battery management module, used to manage the charging and discharging of energy storage batteries; The battery management module is connected to the power supply bus, and the other end of the power supply bus is respectively connected to the power output ends of the light-on power-taking module and the light-off power-taking module.

8. The circuit according to claim 7, characterized in that The wireless intelligent module is connected to the LOD linear voltage stabilization module and the battery management module and the charging and discharging battery of the charging and discharging module respectively; the wireless intelligent module is used to control the normal operation and wireless remote control of the entire single-fire control circuit.

9. An intelligent single fire switch control system, characterized in that: The system comprises: the intelligent single fire switch control circuit according to any one of claims 1 to 8.

10. An intelligent single fire switch control method, applied to different preset time periods to control the circuit, characterized in that: The control method using the intelligent single fire switch control circuit according to any one of claims 1 to 8 comprises: Divide the 24 hours of the day into a first preset time period of 7:01-19:59 and a second preset time period of 20:00-7:00; In different time periods, corresponding control is performed, and in the first preset time period, the light-off power-taking module is turned on; Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module; Turn off the light-on power module, and the light-off power module is used to power the subsequent circuit, which includes: LOD linear voltage regulator module, wireless intelligent module power supply and charging and discharging module, and also stores energy for the charging and discharging module; In the second preset time period, the light switch power supply module is disconnected; Turn on the light-on power module, which is used to supply power to the load, LOD linear voltage regulator module, charging and discharging module and wireless intelligent module, and also stores energy for the charging and discharging module; The light-on power module is turned off, and the charging and discharging module is used to supply power to the wireless intelligent module.

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