CN108377588A - A kind of LED wireless receivings controller - Google Patents

Abstract

The invention discloses a kind of LED wireless receivings controllers, are related to smart home field, including：Main control chip, hardware watchdog circuit, wireless receiving module, LED drive circuit, power module and memory；The output end of wireless receiving module is electrically connected with the wireless receiving input terminal of main control chip；LED drive circuit input terminal is electrically connected with the PWM output ends of main control chip；Memory is electrically connected with the memory interface of main control chip；First output end of hardware watchdog circuit is electrically connected with main control chip reseting port, and the guard the gate counting clear input of enough circuits of hardware is electrically connected with the timing output of main control chip.The present invention uses hardware watchdog, and main control chip program is avoided to malfunction；The MCU chip of hardware watchdog can control LED load when main control chip fails；There are many profile modules for storage in memory, and user is facilitated to select；Driving circuit is controlled using pwm signal, LED load electric current is stablized.

Description

A kind of LED wireless receivings controller

Technical field

The utility model is related to smart home fields, more particularly to a kind of LED wireless receivings controller.

Background technology

As technology of Internet of things is in the continuous development of smart home, more and more wireless technologys are applied to various Electric appliance in.Wireless technology has the advantages that low cost, low-power consumption, easy to control etc. are a variety of, and traditional household electrical appliances, often has peace Full property higher, better reliability, the advantages that more meeting the use habit of people.Therefore advanced wireless technology is integrated into tradition Household electrical appliances in, the use habit of consumer can be more in line with, the experience of user can be greatly promoted.

For signal light control, mainly line traffic control is in the majority to have at present, and has a single function.But as people are to signal light control Demand diversification and be inconvenient to promote multifunction to existing product, intelligent, the development of the control of hommization.

Utility model content

In view of the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide a kind of LED without Line receives controller, it is intended to the wirelessly LED light of programming Control；Meanwhile the utility model avoids main control chip program Entanglement, LED drivings are stablized.

To achieve the above object, the utility model provides a kind of LED wireless receivings controller, which is characterized in that including：

Main control chip, hardware watchdog circuit, wireless receiving module, LED drive circuit, power module and memory； The output end of the wireless receiving module is electrically connected with the wireless receiving input terminal of the main control chip；The LED drive circuit Input terminal is electrically connected with the PWM output ends of the main control chip；The memory interface of the memory and the main control chip is electrically connected It connects；The output end of the LED drive circuit connects LED load；The wireless receiving module with wireless sending module for communicating； First output end of the hardware watchdog circuit is electrically connected with the main control chip reseting port, and the hardware is guarded the gate enough circuits Counting clear input be electrically connected with the timing output of the main control chip.

In the technical scheme, wireless receiving module receives the control of remote control or the wireless transmitter module transmitting of remote control panel The coding of signal, and be sent to main control chip and be decoded, which is set according to electric appliance quantity and control, can be prevented String code；It is provided with hardware watchdog circuit, when main control chip program malfunctions, main control chip is resetted；LED drive circuit Pwm control signal is inputted, and generates constant-current supply driving LED load, electric current is stablized.

Furthermore, the hardware watchdog circuit includes MCU chip, the second output terminal of the MCU chip with The LED drive circuit input terminal electrical connection, the third port of the MCU chip are electrically connected with the memory.

In the technical scheme, watchdog circuit is that MCU chip is constituted, and the MCU chip of watchdog circuit counts, master control Chip timing, which sends a signal to house dog MCU chip and counted to it, to be zeroed out；If main control chip is out of order, house dog MCU core Piece, which counts, to be overflowed, and is resetted to main control chip, be the advantage is that and main control chip is avoided to malfunction.In addition, in the technical scheme, MCU chip is also connected with LED drive circuit, and when main control chip fails, MCU chip controls LED load, realizes normal aobvious Show or LED flickers are alarmed.

Furthermore, the LED drive circuit includes：Be depressured constant current source chip U1, loading interfaces, the first inductance L1, First zener diode DZ1, the first capacitance C1, first resistor R1；

The first zener diode DZ1 anodes connect the decompression constant current source chip U14 feet, two pole of the first voltage stabilizing Pipe DZ1 cathode connect 5 feet of the decompression constant current source chip U1；Described one end first inductance L1 connects the decompression constant current source core 1 foot of piece U1, the other end connect 2 feet of the load；1 foot of the load connects 4 feet of the decompression constant current source chip U1； First capacitance one end connects 2 feet of the decompression constant current source chip U1, and the other end connects the decompression constant current source chip U1 5 feet；The one end the first resistor R1 connects 5 feet of the decompression constant current source chip U1, and the other end connects the decompression constant current 4 feet of source chip U1.

In the technical scheme, LED drive circuit is constituted using decompression constant current source chip, inductance, zener diode etc., it should Circuit can PWM control, outputting current steadily, be suitable for LED load driving.

Furthermore, the memory is stored with LED control information, and the LED controls information includes that there are many scenes Pattern information and the setting information of LED controls.

In the technical scheme, the utility model main control chip is according to the control information of wireless receiving module, from memory The middle driving parameter for extracting the control information, including PWM duty cycle, then LED drive controls LED load realize a variety of scene moulds One kind in formula.

The utility model has the beneficial effects that：The utility model uses hardware watchdog, and main control chip program is avoided to malfunction； The MCU chip of hardware watchdog can also control LED load when main control chip fails, and realize that normal display or LED are dodged Bright alarm；Storage facilitates user to select there are many profile module that LED lamplight is lighted in memory；LED drive circuit inputs Pwm control signal, and constant-current supply driving LED load is generated, electric current is stablized.

Description of the drawings

Fig. 1 is the structural schematic diagram of one specific implementation mode of the utility model；

Fig. 2 is the circuit diagram of one specific implementation mode of the utility model.

Specific implementation mode

The utility model is described in further detail with reference to the accompanying drawings and examples：

As shown in Figure 1, present embodiments providing a kind of LED wireless receivings controller, which is characterized in that including：Master control core Piece, hardware watchdog circuit, wireless receiving module, LED drive circuit, power module and memory；The wireless receiving mould The output end of block is electrically connected with the wireless receiving input terminal of the main control chip；The LED drive circuit input terminal and the master Control the PWM output ends electrical connection of chip；The memory is electrically connected with the memory interface of the main control chip；The LED drivings The output end of circuit connects LED load；The wireless receiving module with wireless sending module for communicating；The hardware watchdog First output end of circuit is electrically connected with the main control chip reseting port, the hardware guard the gate enough circuits counting reset input End is electrically connected with the timing output of the main control chip.

The transmitting code of remote control or remote control panel transmitting terminal is specific 32 codes, and the design has very strong anti-string code Ability；And by automatic ID programmings in logic, it may be programmed at least 10,000,000,000 or more different ID user codes, that is, each user An independent ID number can be formed, to lead to generate the string code of neighboring user because wireless.

In the present embodiment, the hardware watchdog circuit includes MCU chip, the second output terminal of the MCU chip It is electrically connected with the LED drive circuit input terminal, the third port of the MCU chip is electrically connected with the memory.

As shown in Fig. 2, in the present embodiment, the LED drive circuit includes：Be depressured constant current source chip U1, loading interfaces, First inductance L1, the first zener diode DZ1, the first capacitance C1, first resistor R1；The first zener diode DZ1 anodes The decompression constant current source chip U14 feet are connected, the first zener diode DZ1 cathode connect the decompression constant current source chip U1 5 feet；Described one end first inductance L1 connects 1 foot of the decompression constant current source chip U1, and the other end connects the 2 of the load Foot；1 foot of the load connects 4 feet of the decompression constant current source chip U1；It is permanent that first capacitance one end connects the decompression 2 feet of source chip U1 are flowed, the other end connects 5 feet of the decompression constant current source chip U1；The one end the first resistor R1 connects institute 5 feet of decompression constant current source chip U1 are stated, the other end connects 4 feet of the decompression constant current source chip U1.In addition, in fig. 2, returning The circuit diagram of other modules of LED wireless receiving controllers is gone out.

In the present embodiment, the memory is stored with LED control information, and the LED controls information includes that there are many feelings Scape pattern information and the setting information of LED controls.

In the present invention, using wireless mode programming Control LED light, in this embodiment, multi-way light is carried out Control, per road, control can be arranged to a variety of contextual models, and remember the setting state under every group of contextual model.Realize operation letter Just, setting is flexible, and control is simple；And flexibly realize independent control and linkage setting.

The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.

Claims (1)

1. a kind of LED wireless receivings controller, which is characterized in that including：

Main control chip, hardware watchdog circuit, wireless receiving module, LED drive circuit, power module and memory；

The output end of the wireless receiving module is electrically connected with the wireless receiving input terminal of the main control chip；The LED drivings Circuit input end is electrically connected with the PWM output ends of the main control chip；The memory interface of the memory and the main control chip Electrical connection；The output end of the LED drive circuit connects LED load；The wireless receiving module is used for and wireless sending module Communication；

First output end of the hardware watchdog circuit is electrically connected with the main control chip reseting port, and the hardware is guarded the gate enough The counting clear input of circuit is electrically connected with the timing output of the main control chip；

The hardware watchdog circuit includes MCU chip, the second output terminal of the MCU chip and the LED drive circuit Input terminal is electrically connected, and the third port of the MCU chip is electrically connected with the memory；

The LED drive circuit includes：It is depressured constant current source chip (U1), loading interfaces, the first inductance (L1), two pole of the first voltage stabilizing Manage (DZ1), the first capacitance (C1), first resistor (R1)；

First zener diode (DZ1) anode connects 4 foot of decompression constant current source chip (U1), two pole of the first voltage stabilizing Manage 5 feet of (DZ1) cathode connection decompression constant current source chip (U1)；It is permanent that described first inductance (L1) one end connects the decompression 1 foot of source chip (U1) is flowed, the other end connects 2 feet of the load；1 foot of the load connects the decompression constant current source chip (U1) 4 feet；2 feet of first capacitance one end connection decompression constant current source chip (U1), the other end connect the decompression 5 feet of constant current source chip (U1)；5 feet of first resistor (R1) one end connection decompression constant current source chip (U1), it is another 4 feet of the end connection decompression constant current source chip (U1)；

The memory is stored with LED control information, and the LED controls information includes that there are many information of referred situation pattern and LED The setting information of control.