CN115052403A - Lighting controller - Google Patents

Abstract

The present application discloses a lighting controller, which relates to the technical field of lighting control. The lighting controller includes: a CPU module and a step-down module connected between two terminals of an input line L and N, and the step-down module provides work for the CPU module Power supply; CPU module includes matrix keyboard, communication port and output control port. The output control port controls the on and off of contactors K1~Kn respectively. One end of K1~Kn is connected to L respectively, and the other end is connected to one end of load L1~Ln respectively. Connection, the other ends of L1~Ln are connected to line N, each load is controlled by its corresponding contactor, the CPU module controls each load according to the scene parameters, n is an integer greater than 1. The problem that the curing function of the control mode of the lighting lamp in the prior art cannot meet the use of some scenes is solved, and the effect that each load can be flexibly controlled according to scene parameters to meet the needs of different scenes is achieved. In addition, the circuit structure of the present application is simple and reliable.

Description

lighting controller

technical field

The invention relates to a lighting controller, which belongs to the field of lighting control.

Background technique

The centralized electric control of existing buildings or indoor and outdoor lighting is usually a "one-to-one" control method in which a switch controls one lamp, or a "one-to-many", "many-to-many" and other solidified control methods set by the manufacturer. The function is relatively single and cannot meet the use of some scenarios.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a lighting controller for solving the problems existing in the prior art.

To achieve the above object, the present invention provides the following technical solutions:

According to a first aspect, an embodiment of the present invention provides a lighting controller, the lighting controller comprising:

a central processing unit CPU module and a step-down module connected between the two ends of the input line L and N, the step-down module provides working power for the CPU module;

The CPU module includes a matrix keyboard, a communication port and an output control port. The output control ports respectively control the on and off of the contactors K1 to Kn. One end of each of K1 to Kn is respectively connected to L, and the other end is respectively connected to loads L1 to Ln. One end of L1~Ln is connected to line N, each load is controlled by its corresponding contactor, the CPU module controls each load according to scene parameters, n is an integer greater than 1.

Optionally, the matrix keyboard includes numeric keys and function keys F1 to F5, and the F1 is used to switch the scene programming mode and the scene control mode;

In the scene programming mode, F2 is the add function key, F3 is the cut-off energy key, F4 is the time value key for delay opening, and F5 is the time value key for closing the delay;

In the field control mode, F2 is the all-on key, and F3 is the all-off key.

Optionally, a drive registration state table and a time value storage table are stored in the CPU module, the drive registration state table includes the correspondence between the logical states of each numeric key and each address, and the time value storage table includes The time value of each load when each number key is pressed;

The CPU module controls each load according to the scene parameter, the driver registration state table and the time value storage table.

Optionally, the step-down module outputs two voltages, wherein one voltage provides working power for the CPU module, and the other voltage provides working voltage for the contactor.

Optionally, the step-down module is: a power-frequency AC transformer step-down form, or a pulse width modulation PWM step-down form, or an AC-DC converter, or a DC-DC converter.

Optionally, the contactors K1 to Kn include at least one of an electromagnetic relay, a triac or a power insulated gate bipolar transistor IGBT.

Optionally, the scene parameters are set through the matrix keyboard or obtained from the outside through the communication port.

Optionally, the loads L1 to Ln include at least one of incandescent lamps, light-emitting diode (LED) lamps, fluorescent lamps and halogen lamps.

Optionally, the voltages at both ends of the input lines L and N are AC220V or DC power.

Optionally, the communication port includes a physical universal asynchronous transceiver UART-based communication interface.

By providing a lighting controller, the lighting controller includes: a central processing unit (CPU) module and a step-down module connected between two ends of an input line L and N, the step-down module provides working power for the CPU module The CPU module comprises a matrix keyboard, a communication port and an output control port, the output control ports respectively control the on and off of the contactors K1～Kn, one end of K1～Kn is respectively connected with L, and the other end is connected with the load L1～Kn respectively One end of Ln is connected, the other ends of L1 to Ln are connected to line N, each load is controlled by its corresponding contactor, the CPU module controls each load according to scene parameters, n is an integer greater than 1. The problem that the curing function of the control mode of the lighting lamp in the prior art cannot meet the use of some scenes is solved, and the effect of flexibly controlling each load according to the scene parameters to meet the needs of different scenes is achieved. In addition, the circuit structure of the present application is simple and reliable.

In addition, the CPU module in the present application can be programmed on-site according to the driver registration state table and the time value storage table, which further expands the application scenarios of the present application.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, and implement it according to the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a circuit principle of a lighting controller provided by an embodiment of the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Please refer to FIG. 1, which shows a schematic circuit diagram of a lighting controller provided by an embodiment of the present application. As shown in FIG. 1, the lighting controller includes:

A CPU (central processing unit, central processing unit) module and a step-down module connected between the two ends of the input line L and N, the step-down module provides working power for the CPU module;

The CPU module includes a matrix keyboard, a communication port and an output control port. The output control ports respectively control the on and off of the contactors K1 to Kn. One end of each of K1 to Kn is respectively connected to L, and the other end is respectively connected to loads L1 to Ln. One end of L1~Ln is connected to line N, each load is controlled by its corresponding contactor, the CPU module controls each load according to scene parameters, n is an integer greater than 1.

The voltages at both ends of the input lines L and N are AC220V or DC power.

The matrix keyboard includes number keys and function keys F1 to F5, and the F1 is used to switch the scene programming mode and the scene control mode; wherein, in a possible implementation manner, the number keys include 0 ^# to F ^# keys.

In the scene programming mode, F2 is the add function key, F3 is the cut-off energy key, F4 is the time value key for delay opening, and F5 is the time value key for closing the delay;

In the field control mode, F2 is the all-on key, and F3 is the all-off key.

Among them, the CPU module or the external E ² PROM and other memory stores a driver registration status table, and the driver registration status table includes the corresponding relationship between each digital key and the logical state of each address. The CPU module registers according to the scene parameters and the driver status. Control individual loads. In a possible embodiment, please refer to Table 1, the number keys 0 ^# to F ^# correspond to the logic states in the addresses 00 to 0FH (16-bit format) in Table 1, respectively, and in each address, the D0 bit is 1, that is, the 0 ^# key only controls the D0 bit, which shows a possible implementation of the driver registration state table.

Table 1

In another possible implementation manner, since in practical applications, it may be necessary to control the load to be turned off with a delay or to be turned on with a delay. Therefore, the CPU module stores a time value storage table, and the time value storage table includes The time value of each load when each number key is pressed. For example, please refer to Table 2, which shows the time value information of each load when the 0 ^# key is pressed. Among them, as shown in Table 2, the 00H address is used to store the delay value of L1 opening, the 01H address is used to store the delay value of L1 closing, and the table is until 1FH corresponds to the closing delay value of L16.

Table 2

As described above, if there are 16 numeric keys, the time value storage table also includes time value information corresponding to the other 15 numeric keys being pressed, which will not be repeated in this embodiment. In addition, in Table 2, the default maximum duration of programming is 57600 seconds (16 hours), and the time value parameters are 60001 to 60008, representing 17 to 24 hours respectively.

Moreover, each time the number key is pressed, the state is reversed, that is, "off" changes to "on", and when pressed again, "on" changes to "off".

Under the local button control or the "start" command from the communication port information, one or several contactors are turned on, and the corresponding one load (lamp) or several loads (lamp) are connected to the power grid and start to work, or one of them A certain lamp is turned on after a delay for a period of time. Under its "stop" command, the relevant load is immediately turned off (disconnected) or one or several of them are turned off after the delay is reached according to different delay times. "Key (command)" adopts the logical negation method, that is, one time is "1", the second time is "0", the third time is "1", and so on.

Correspondingly, the CPU module controls each load according to the scene parameter, the driver registration state table and the time value storage table.

In the above embodiment, the scene parameters are set through the matrix keyboard or obtained from the outside through the communication port.

In a possible implementation, the user wants to implement K2 (corresponding to the 1 ^# key on the local controller) on the mobile APP to control a light (L1) upstairs to turn on immediately, delay 5 seconds to turn off, and turn off the downstairs with a delay of 5 seconds. The lamp (L2) is turned on after a delay of 10s, and then turned off immediately. The coding process of the controller's local matrix keys is as follows. Press and hold the key F1 for 5 seconds to enter the programming mode, because the default logic combination address is 00H[K1(0 ^#key ) key Logic value], short press F1 again, program the 01H address [the logic value of K2 (1 ^# key) key], press F2 to add control output (driver registration), press number key 1, sign L1 to add control, press F4 , Do you need to set the turn-on delay value, no, press the number key 0(s), press F5, whether you need to set the turn-off delay value, yes, press the number key 5(s), 00H to end the programming of L1, press F2, Press the number key 2 to indicate that L2 is added to the control, press F4, press the number key 10(s), press F5, press the number key 0(s), press and hold the key F1 for 5 seconds to exit the programming mode, and the controller enters the normal working mode.

In another possible implementation, the user wants to set the local 3# key to turn on L4-L5 instantaneously, and L6 as the duty light to turn off after 18 hours lag, the coding process is, press and hold the key F1 for 5 seconds to enter the programming Mode, press F1 three times, press F2, press number key 4, press F2, press number key 5, press F2, press number key 6, press F5, use number keys to input 60002, press key F1 for 5 seconds to exit programming mode.

In the normal working mode, (for example) every time the 0 ^# key is pressed, the internal program of the CPU judges the content of the 00H address in the table 1. If a bit is "1", it further judges the two time value data in the corresponding time value storage table. (Table 2 style), the turn-on delay value is 0 (instantaneous on/move type), and the corresponding output port register is inverted and output; if it is not “0” (delayed on/move type), the timer calculates “on” After the time is up", the register of the corresponding output port is inverted and output. Similarly, if a bit is "1" and the corresponding shutdown delay value is not "0", after the second key operation, the timer is used to calculate "after the shutdown time" to invert the port state. If a certain bit in the 00H address in Table 1 is "0" (indicating that the 0 ^# key is not registered), the corresponding port will not be operated.

Through the application of the drive registration state table and the time value storage table, it is possible to use the channel logic combination drive and the time value comprehensive programming, and then exhaust various lighting control methods to meet the needs of lighting scenes in any occasion.

The step-down module is: a power-frequency AC transformer step-down form, or a PWM (Pulse width modulation, pulse width modulation) step-down form, or an AC-DC converter, or a DC-DC converter. The step-down module outputs two voltages, wherein one voltage provides working power for the CPU module, and the other voltage provides working voltage for the contactor. For example, output one channel of 5V or 3.3V to provide working power for the CPU module, and one channel of 12V or 24V to provide working power for the contactor coil loop. Of course, the above only takes the output of two voltages of the step-down module as an example to provide voltage for the CPU module and the contactor circuit. In actual implementation, the circuit of the contactor and the load can also be powered by other power sources, which is not limited in this application. . And when the power supply is separated, it can be AC power supply or DC power supply at the same time. Of course, it can also be combined power supply for DC and AC, and the level of the power supply voltage can be determined according to actual needs.

The contactors K1 to Kn include at least one of an electromagnetic relay, a triac or a power IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor). K1~Kn are controlled by the output channel of the CPU module. For example, when the CPU module outputs a high level all the way, the normally open contact of K1 is closed and connected, and L1 starts to work when it is energized; when the CPU module outputs a low level all the way, the normally open contact of K1 is disconnected, L1 power off and stop working, and so on.

The CPU module includes 8-bit, 16-bit or 32-bit architecture and contains multiple I/O channels for scanning the matrix keyboard and output control, and the communication ports in the CPU module include but are not limited to UART (Universal Asynchronous Receiver/ Transmitter, universal asynchronous transceiver) physical type RS232 and RS485 and other forms, the communication protocol is determined by the upper-level master control or energy metering platform, further, the communication port includes a local wireless transmission type, or is connected to a gateway, through the Internet Interconnected with the mobile APP, the mobile APP also has control keys to remotely control the state switching of K1~Kn, and the display window displays parameters such as the on-off state and time value of each channel.

The loads L1 to Ln include at least one of incandescent lamps, light-emitting diode (LED) lamps, fluorescent lamps and halogen lamps. In addition, the above is only an example where the loads are lamps used for lighting. In actual implementation, the loads can also be electric heaters, motor loads, such as barbecue ovens, household appliances and other single-phase electrical appliances.

To sum up, by providing a lighting controller, the lighting controller includes: a central processing unit CPU module and a step-down module connected between the two ends of the input line L and N, the step-down module is the The CPU module provides working power; the CPU module includes a matrix keyboard, a communication port and an output control port, the output control ports respectively control the on and off of the contactors K1 ~ Kn, one end of each K1 ~ Kn is respectively connected to L, and the other end They are respectively connected to one end of the loads L1-Ln, and the other ends of L1-Ln are connected to the line N. Each load is controlled by its corresponding contactor. The CPU module controls each load according to the scene parameters, and n is greater than 1. the integer. The problem that the curing function of the control mode of the lighting lamp in the prior art cannot meet the use of some scenes is solved, and the effect of flexibly controlling each load according to the scene parameters to meet the needs of different scenes is achieved. In addition, the circuit structure of the present application is simple and reliable.

In addition, the CPU module in the present application can be programmed on-site according to the driver registration state table and the time value storage table, which further expands the application scenarios of the present application.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A lighting controller, wherein the lighting controller comprises: a central processing unit CPU module and a step-down module connected between the two ends of the input line L and N, the step-down module provides working power for the CPU module; The CPU module includes a matrix keyboard, a communication port and an output control port. The output control ports respectively control the on and off of the contactors K1 to Kn. One end of each of K1 to Kn is respectively connected to L, and the other end is respectively connected to loads L1 to Ln. One end of L1~Ln is connected to line N, each load is controlled by its corresponding contactor, the CPU module controls each load according to scene parameters, n is an integer greater than 1. 2. The lighting controller according to claim 1, wherein the matrix keyboard comprises numeric keys and function keys F1-F5, and the F1 is used for switching between scene programming mode and scene control mode; In the scene programming mode, F2 is the add function key, F3 is the cut-off energy key, F4 is the time value key for delay opening, and F5 is the time value key for closing the delay; In the field control mode, F2 is the all-on key, and F3 is the all-off key. 3. The lighting controller according to claim 2, wherein a driver registration state table and a time value storage table are stored in the CPU module, and the driver registration state table includes the logic of each numeric key and each address The corresponding relationship of the state, the time value of each load when each numeric key is pressed is included in the time value storage table; The CPU module controls each load according to the scene parameter, the driver registration state table and the time value storage table. 4 . The lighting controller according to claim 1 , wherein the step-down module outputs two voltages, wherein one voltage provides working power for the CPU module, and the other voltage provides working voltage for the contactor. 5 . . 5. The lighting controller according to claim 1, wherein the step-down module is: a power-frequency AC transformer step-down form, or a pulse width modulation PWM step-down form, or an AC-DC converter, Or a DC-DC converter. 6 . The lighting controller according to claim 1 , wherein the contactors K1 to Kn comprise at least one of an electromagnetic relay, a triac or a power insulated gate bipolar transistor (IGBT). 7 . 7 . The lighting controller according to claim 1 , wherein the scene parameters are set through the matrix keyboard or obtained from the outside through the communication port. 8 . 8 . The lighting controller according to claim 1 , wherein the loads L1 to Ln comprise at least one of incandescent lamps, light-emitting diode (LED) lamps, fluorescent lamps and halogen lamps. 9 . 9. The lighting controller according to any one of claims 1 to 6, wherein the voltages at both ends of the input lines L and N are AC220V or DC power. 10. The lighting controller according to any one of claims 1 to 6, wherein the communication port comprises a communication interface based on a physical universal asynchronous transceiver UART.

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