Intelligent switch control device

Abstract

The application discloses a kind of intelligent switch control device, it includes: the input end of switching power supply step-down circuit is electrically connected with mains end, the output end of switching power supply step-down circuit is electrically connected with LDO step-down circuit, LDO step-down circuit is electrically connected with main control;Main control is electrically connected with wifi module, switching circuit, power metering detection circuit respectively, power metering detection circuit is electrically connected with current detection circuit and voltage detection circuit respectively, current detection circuit and voltage detection circuit are electrically connected at the two ends of mains respectively;Switching circuit is provided with drive IC, switching circuit is electrically connected with the coil control end of control relay, the two output ends of control relay are electrically connected with switch gear one, switch gear two respectively, the input end of control relay is electrically connected with one end of mains, control relay and current detection circuit are accessed in same mains end.It is compatible to traditional non-intelligent conversion switch circuit, and the state of current switch gear is accurately judged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lighting switches, in particular to an intelligent switch control device. BACKGROUND

[0002] Room lighting equipment is generally provided with two different position switches, one at the bedside and the other at the door. The purpose of setting up an intelligent control switch is to facilitate user control and monitoring through a mobile terminal. Existing intelligent control switches are mainly single control type, but when the load with small load power is detected, it is easy to be missed.

[0003] For example, application No. 202311798441.6, an improved intelligent dimming control device, realizes the current state judgment of the switch through the identification circuit. The existing identification circuit judges the switch state by identifying the current waveform in the switch circuit. The disadvantage is that in the case of circuit fluctuation or small load, misjudgment is easy to occur.

[0004] Some intelligent switches also use a 3-way (3-way, i.e. zero, fire, ground) combination control method, in which the 3-way function dimmer uses a single-line control scheme.

[0005] The 3-way combination control circuit replaces the traditional non-intelligent 3-way combination switch circuit, which requires a large circuit adjustment on the circuit wiring, which will cause great trouble to the user of the home installation. The pre-buried pipeline may need to be removed and relocated, or the exposed line may need to be modified.

[0006] Therefore, there is an urgent need for an intelligent switch control device that can solve one or more of the above problems. SUMMARY

[0007] To solve one or more problems in the prior art, the present application provides an intelligent switch control device. The technical solution adopted by the present application to solve the above problems is: an intelligent switch control device, comprising: a switch power supply step-down circuit, the input end of the switch power supply step-down circuit is electrically connected with the mains end, the output end of the switch power supply step-down circuit is electrically connected with the LDO step-down circuit, the LDO step-down circuit is electrically connected with the main control;

[0008] The main control is respectively electrically connected with the wifi module, the switching circuit and the power metering detection circuit, the power metering detection circuit is respectively electrically connected with the current detection circuit and the voltage detection circuit, the current detection circuit and the voltage detection circuit are respectively electrically connected at both ends of the mains;

[0009] The switching circuit is provided with a driving IC, the switching circuit is electrically connected with a coil control end of a control relay, two output ends of the control relay are respectively electrically connected with a switch gear one and a switch gear two, an input end of the control relay is electrically connected with one end of commercial power, and the control relay is connected with the current detection circuit in the same commercial power end;

[0010] The master control obtains the switch gear currently turned on by the control relay through the state acquisition method one or the state acquisition method two;

[0011] The state acquisition method one is that the master control controls the control relay to be fixedly turned on to a certain switch gear in initialization, and subsequently records the switching state of the switch gear and calculates the switch gear currently turned on by the control relay;

[0012] The state acquisition method two is that the master control obtains the working state of the coil of the control relay through the driving IC, and calculates the switch gear currently turned on by the control relay according to the working state.

[0013] In some embodiments, further comprising: an LED state indication circuit electrically connected with the master control; and a function button module electrically connected with the master control.

[0014] In some embodiments, the current detection circuit is provided with a detection resistor, an input end of the detection resistor is electrically connected with one end of commercial power, an output end of the detection resistor is electrically connected with an input end of the control relay, an output end T1 of the control relay is electrically connected with the switch gear one, and an output end T2 of the control relay is electrically connected with the switch gear two.

[0015] The coil control end of the control relay is electrically connected with the driving IC, and is connected in parallel with an absorber for absorbing static electricity and discharging of the coil.

[0016] Further comprising: a load removal protection method, the load removal protection method comprising: setting voltage protection threshold, current protection threshold and frequency protection threshold on the master control;

[0017] When any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold of the current switch circuit with load are triggered, the master control drives the driving IC to switch the switch gear of the control relay;

[0018] When any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold of the current switch circuit with load are triggered, the master control outputs a load removal protection signal to the user.

[0019] In some embodiments, the state acquisition method one further comprises: the master control acquires whether the current switch gear is the starting gear of the load through the power metering detection circuit, and if the switch gear that is fixedly turned on during initialization is the starting gear of the load, the master control switches the switch gear to the closing gear of the load after initialization is completed and records the switch switching state.

[0020] In some embodiments, the state acquisition method two further comprises: the master control acquires whether the current switch gear is the starting gear of the load through the power metering detection circuit, and if the master control calculates that the switch gear that is currently turned on by the control relay is the starting gear of the load according to the working state, the master control switches the switch gear to the closing gear of the load after initialization is completed and records the switch switching state.

[0021] The technical effects achieved by the application are that the intelligent switch control device is compatible with the traditional non-intelligent switch circuit, does not need to be greatly modified from the existing line, solves the problem of user wiring difficulty, and further facilitates the user to intelligently control the lamp;

[0022] The current, voltage and power of the switch circuit with a load are detected, and the results are fed back to the user's device through the wifi module or directly output to the panel display screen.

[0023] The currently turned-on switch gear is detected and judged, thereby facilitating the user to control the lamp and improving the accuracy of judgment, the initialization operation of the ordinary intelligent switch is simpler and more convenient, and the load of the switch circuit is removed and protected in the abnormal state of the circuit. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The schematic diagram of the application is shown in the figure;

[0025] Figure 2 The schematic diagram of the master control, LDO voltage reduction circuit and wifi module of the application is shown in the figure;

[0026] Figure 3 The schematic diagram of the current detection circuit and switching circuit of the application is shown in the figure;

[0027] Figure 4 The schematic diagram of the voltage detection circuit of the application is shown in the figure;

[0028] Figure 5 The schematic diagram of the power metering detection circuit of the application is shown in the figure;

[0029] Figure 6 The schematic diagram of the switch power supply voltage reduction circuit of the application is shown in the figure;

[0030] Figure 7This is a schematic diagram of the LED status indicator circuit of the present invention;

[0031] Figure 8 This is a schematic diagram of the function button module of the present invention. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more readily understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 As shown, this invention discloses an intelligent switch control device, which includes: a switching power supply step-down circuit, combined with... Figure 2 , Figure 6 As shown, the input terminal of the switching power supply step-down circuit is electrically connected to the mains power terminal, the output terminal of the switching power supply step-down circuit is electrically connected to the LDO step-down circuit, and the LDO step-down circuit is electrically connected to the main control (MCU).

[0034] Combination Figures 2-6 As shown, the main controller is electrically connected to the Wi-Fi module, the switching circuit, and the power metering and detection circuit, respectively. The power metering and detection circuit is electrically connected to the current detection circuit and the voltage detection circuit, respectively.

[0035] The current detection circuit and the voltage detection circuit are respectively electrically connected to the two ends of the mains power supply to avoid mutual interference between the two detection circuits;

[0036] Combination Figure 3 As shown, the switching circuit is equipped with a driver IC. The switching circuit is electrically connected to the coil control terminal of the control relay. The two output terminals of the control relay are electrically connected to switch position one and switch position two, respectively. The input terminal of the control relay is electrically connected to one end of the mains power.

[0037] The control relay and the current detection circuit are connected to the same mains power terminal to ensure accurate current detection and switching control of the load.

[0038] Specifically, in combination Figures 7-8 As shown, it also includes: an LED status indicator circuit, which is electrically connected to the main control unit and is used to display the current working status of the device, the circuit working status, and the switch position status;

[0039] A function button module is electrically connected with the main control, and a user controls the device and controls the switch gear through the function button module.

[0040] Specifically, as shown in Figure 3 、 Figure 6 The current detection circuit is provided with a detection resistor RS1, an input end of the detection resistor RS1 is electrically connected with one end ACL of the commercial power, an output end of the detection resistor RS1 is electrically connected with an input end of the control relay K1, an output end T1 of the control relay K1 is electrically connected with the switch gear one, and an output end T2 of the control relay K1 is electrically connected with the switch gear two.

[0041] The coil control end of the control relay K1 is electrically connected with the driving IC-U2, and is connected in parallel with an absorber D2, the absorber D2 is used for absorbing static electricity and discharging of the coil, and the absorber D2 can be an electrostatic suppressor.

[0042] It should be noted that, as shown in Figure 3 The main control is electrically connected with a wifi module control circuit, the control of the driving IC by the main control and the control of the driving IC by the main control according to information of the wifi module are both implemented through the wifi module control circuit.

[0043] In use, a terminal in the hand of a user performs wireless communication with the main control through the wifi module, so as to realize control of the main control, control of the switch gear, and acquisition of the current switch gear state, the load working state, and the state of the switch circuit.

[0044] In addition, the main control acquires the switch gear currently turned on by the control relay through the state acquisition method one or the state acquisition method two.

[0045] The state acquisition method one includes: 1. The main control fixes a certain switch gear to be turned on during initialization, and records the switching state of the switch gear and calculates the switch gear currently turned on by the control relay in the subsequent process; 2. The main control knows whether the current switch gear is the starting gear of the load through the power metering detection circuit, if the certain switch gear fixed to be turned on during initialization is the starting gear of the load, the main control switches the switch gear to the closing gear of the load after initialization is completed and records the switching state of the switch.

[0046] The second state acquisition method: 1. In the initialization, the master obtains the working state of the coil of the control relay through the drive IC, and calculates the current switch gear connected by the control relay according to the working state; 2. The master knows whether the current switch gear is the starting gear of the load through the power metering detection circuit. If the master calculates that the current switch gear connected by the control relay is the starting gear of the load according to the working state, the master switches the switch gear to the closing gear of the load after the initialization is completed and records the switch state.

[0047] In the case of sudden disconnection and automatic recovery of the mains, the device will be powered off and powered on again, and the device will automatically perform initialization. At this time, if the light is in the on state after initialization and there is no one in the room, it will cause waste of electric energy. The first and second state acquisition methods are used to turn off the load after initialization to avoid waste of electric energy.

[0048] Specifically, it further comprises a load removal protection method, which comprises: setting voltage protection threshold, current protection threshold and frequency protection threshold on the master control;

[0049] When any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold of the current switch circuit with load are triggered, the master control drives the drive IC to switch the switch gear of the control relay;

[0050] When any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold of the current switch circuit with load are triggered, the master control outputs a load removal protection signal to the user;

[0051] The load removal protection method avoids the load working in an abnormal state, and reminds the user to check the switch circuit to restore the normal working state of the circuit.

[0052] In summary, the above-mentioned intelligent switch control device realizes the compatibility of traditional non-intelligent switch circuit, and does not need to make substantial modification to the existing line, solves the problem of user wiring difficulty, and further facilitates the user to control the light intelligently;

[0053] The current, voltage and power of the switch circuit with load are detected, and the results are fed back to the user's device through the wifi module, or directly output to the panel display screen;

[0054] The current switched gear is detected and judged, and then the user can control the lamp and improve the accuracy of judgment, and the initialization operation of the ordinary intelligent switch is more simple and convenient, and the load of the switch circuit is removed in the abnormal state of the circuit.

[0055] The above-described embodiments only express one or more embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An intelligent switch control device, characterized by, The utility model relates to a kind of power supply system, including: Switching power supply step-down circuit, the input end of the switching power supply step-down circuit is electrically connected with mains end, the output end of the switching power supply step-down circuit is electrically connected with LDO step-down circuit, the LDO step-down circuit is electrically connected with master control; The master control is electrically connected with wifi module, switching circuit, power metering detection circuit respectively, the power metering detection circuit is electrically connected with current detection circuit and voltage detection circuit respectively, the current detection circuit and the voltage detection circuit are electrically connected at the two ends of mains respectively; The switching circuit is provided with drive IC, the switching circuit is electrically connected with the coil control end of control relay, the two output ends of the control relay are electrically connected with switch gear one, switch gear two respectively, the input end of the control relay is electrically connected with one end of mains, the control relay is accessed with the current detection circuit in same mains end; The master control obtains the switch gear that the control relay is currently switched on by state acquisition method one or state acquisition method two; The state acquisition method one: the master control fixes to switch on certain switch gear in initialization, and subsequently records switch gear switching state and calculates the switch gear that the control relay is currently switched on; The state acquisition method two: the master control obtains the working state of the coil of the control relay by the drive IC in initialization, and calculates the switch gear that the control relay is currently switched on according to the working state.

2. The intelligent switch control device of claim 1, wherein, Further including: LED state indicating circuit, the LED state indicating circuit is electrically connected with the master control.

3. The intelligent switch control device of claim 1, wherein, Further including: Function button module, the function button module is electrically connected with the master control.

4. The intelligent switch control device of claim 1, wherein, The current detection circuit is provided with detection resistance, the input end of the detection resistance is electrically connected with one end of mains, the output end of the detection resistance is electrically connected with the input end of the control relay, the output end T1 of the control relay is electrically connected with switch gear one, the output end T2 of the control relay is electrically connected with switch gear two; The coil control end of the control relay is electrically connected with the drive IC, and is parallelly connected with absorber, and the absorber is used to absorb static electricity and the discharge of coil.

5. The intelligent switch control device of claim 1, wherein, Load removal protection method, the load removal protection method includes: setting voltage protection threshold, current protection threshold and frequency protection threshold on the master control; When the current load-bearing switching circuit triggers any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold, the master control drives the drive IC to switch the switch gear of the control relay.

6. The intelligent switch control device of claim 5, wherein, When the current load-bearing switching circuit triggers any one or more of the voltage protection threshold, the current protection threshold and the frequency protection threshold, the master control outputs load removal protection signal to user.

7. The intelligent switch control device of claim 1, wherein, The state acquisition method one further includes: the master control knows whether current switch gear is the starting gear of load by the power metering detection circuit, if certain switch gear fixed to switch on in initialization is the starting gear of load, then the master control switches switch gear to the closing gear of load after initialization is completed and records switch switching state.

8. The intelligent switch control device of claim 1, wherein, The state acquisition method two further comprises: the master control acquires whether the current switch gear position is the starting gear position of the load through the power metering detection circuit; if the master control calculates that the switch gear position currently turned on by the control relay is the starting gear position of the load according to the working state, the master control switches the switch gear position to the closing gear position of the load after the initialization is completed and records the switch switching state.

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