CN2598296Y - Automatic code wireless dimmer - Google Patents

Abstract

The utility model aims to design a household automatic code matching wireless dimmer. Due to the use of wireless transceiver technology, the wireless dimmer has the characteristics of long transmission distance (generally tens of meters) and little influence from occlusion, so it is more convenient to use. If there are multiple users using wireless dimmers in the same area, the address code technology must be used, that is, address codes are added to the wireless remote control information, and each dimmer also has a dedicated address code. When the address code of the remote control command is the same as the address code of the local machine, the dimming action will take place. The wireless dimmer of the utility model makes the user's operation simple, has less chance of repeated codes, and greatly reduces the interference between adjacent users.

Description

Automatic code wireless dimmer

(1) Technical field

The utility model relates to a wireless dimmer, in particular to a wireless dimmer capable of automatic code matching. The remote control signal is sent through the wireless remote control, so that the wireless dimmer receives the remote control signal and adjusts the brightness of the lighting fixture or switches the light fixture according to the remote control command and address code.

(2) Background technology

At present, the setting of the address code of the wireless dimmer at home and abroad is controlled by a switch array, that is, there is a set of switch arrays in the wireless remote control and the wireless dimmer, and the switch position of the switch array in the wireless remote control and the wireless dimmer Adjust the switch position of the switch array in the switch to be consistent, that is, the setting of the address code is completed, and this operation step is "code matching". The use of switch arrays for "code matching" has the following disadvantages:

1. The code matching work is more complicated. The user needs to turn on the remote control and dimmer, and toggle the switch array to set.

2. The switch array is limited by the physical size, the number of switch bits is small, and the number of address codes that can be set is small, which is prone to repeated codes of adjacent users, resulting in interference between users.

(3) Contents of utility model

The purpose of this utility model is to provide a wireless dimmer with automatic code matching function. The user only needs to toggle the code switch to make the wireless dimmer in the "code matching" state, and then press the wireless dimmer to Make the dimmer automatically code. After the code pairing is completed, the address code of the current remote control will be saved, and the user can adjust the brightness of the lighting fixture or switch the lighting fixture through the wireless remote control as needed.

In order to achieve the above purpose, an automatic code matching wireless dimmer of the present invention includes:

The wireless remote control transmitter is used to transmit wireless remote control commands and generate address codes;

A wireless receiving circuit, used to receive the wireless signal of the wireless remote control transmitting circuit;

A microcontroller, connected to the wireless receiving circuit, captures the address code of the wireless remote control transmitting circuit through the wireless receiving circuit, and processes the wireless remote control command;

The dimming execution circuit connected with the micro-controller is used to execute the wireless remote control command of the wireless remote control transmitting circuit;

It is characterized in that it also includes:

A non-volatile memory, connected with the microcontroller, used to save the address code generated by the wireless remote control transmitting circuit;

A pair of code switches is connected with the micro-controller and transmits the command for generating the code to the micro-controller.

Adopting such a structure makes it have the following advantages:

1. The user's operation is simple. The user only needs to toggle a code switch to complete the code setting without turning on the wireless remote control and flipping multiple switches;

2. Compared with the switch array technology, the number of address codes is more. When using switch array technology, if 8-bit switches are used, and each switch has 2 states (high level and low level), there are 256 address code combinations in total; while using automatic code matching technology, the encoder in the remote control There are 8-bit address code input terminals, each of which has 3 states (high level, low level and floating), a total of 6561 address code combinations, less chance of repeated codes, and greatly reduced interference between adjacent users.

In order to further illustrate the above purpose, structural features and effects of the present utility model, the utility model will be described in detail below in conjunction with the accompanying drawings.

(4) Description of drawings

Figure 1 is a block diagram of the whole machine structure of the automatic coding wireless dimmer.

Figure 2 is an electrical schematic diagram of the remote control of the automatic code pairing wireless dimmer.

Fig. 3 is a schematic diagram of the main motor of the automatic coding wireless dimmer.

(5) specific implementation

Fig. 1 shows the structural block diagram of the whole machine of the automatic code matching wireless dimmer of the present invention, which includes:

The wireless remote controller 1 is used to generate codes and transmit wireless remote control commands. The codes can be divided into address codes and command codes. The wireless transmitting circuit is a known circuit. The detailed electrical schematic diagram of the wireless remote control is shown in Figure 2, which mainly includes the following circuit parts: the wireless remote control code generation circuit 21, the remote control work instruction circuit 22, the wireless transmission circuit 23 and the battery.

The remote control code generation circuit 21 of the wireless remote controller mainly includes code chip U101, key S101, key S102, address selection jumpers K101-K108, resistor R101 and other components. The wireless remote control code is generated by the coding chip U101. A1~A8 of the coding chip U101 are the input terminals of the remote control coding address code. Each input terminal has three states of high level, low level and floating, so there are 3 ⁸ =6561 in total combination of address codes. The 8 input terminals are respectively connected with 8 groups of address selection jumpers K101~K108, and each group of jumpers can be set to connect the input terminals to power supply, ground or float, corresponding to high level, low level and floating respectively. The jumper setting is completed during the production process, 6561 kinds of address codes are recycled, and it is ensured that the address codes of the same batch of products should not be repeated as much as possible. The D1 and D2 of the encoding chip U101 are remote control command input terminals, wherein the remote control command input terminal D1 of the encoding chip U101 is connected to the key S101 for dimming the light, and the remote control command input D2 is connected to the key S102 for dimming the light.

When the user presses the button S101 for turning on the light, the battery voltage is applied to the remote control command input terminal D1 of the encoding chip U101, and the remote control command input terminal D1 of the encoding chip U101 is at a high level, and the battery voltage is also sent to the encoding chip U101 and the encoding chip U101 through the diode D101. Other circuits supply power, and at this time the remote control command input terminal D2 of the encoding chip U101 is at low level, the encoding chip U101 encodes the levels of the remote control command input terminals D1, D2 and the input terminals A1-A8 of the remote control encoding address code, and Send out through the data output terminal DOUT.

When the user presses the button S102 for dimming the light, the battery voltage is applied to the remote control command input terminal D2 of the encoding chip U101, and the remote control command input terminal D2 of the encoding chip U101 is at a high level, and the battery voltage is also sent to the encoding chip U101 and the encoding chip U101 through the diode D102. Other circuits supply power, and at this time the D1 of the encoding chip U101 is at a low level, the encoding chip U101 encodes the levels of the remote control command input terminals D1, D2 and the input terminals A1-A8 of the remote control encoding address code, and transmits them through the data output terminal. DOUT is sent out.

The resistor R101 and the capacitor inside the encoding chip U101 form an oscillating circuit to provide a clock signal to the encoding chip U101.

The wireless transmitting circuit 23 of the wireless remote controller is mainly a simple ASK (frequency shift keying) composed of triode Q101, capacitors C101-C105, resistor R103, resistor R104, inductor L101, inductor L102, inductor L103, and surface acoustic filter SAW. ) wireless transmitting circuit. The so-called ASK (frequency shift keying) is a modulation method that provides the presence or absence of the carrier signal to indicate the high or low level of the signal. In this circuit, the presence or absence of the carrier signal is controlled by the output of the encoding circuit (the data output terminal DOUT of the encoding chip U101).

When the data output terminal DOUT of the encoding chip U101 outputs a high level, the voltage is applied to the surface acoustic filter SAW through the capacitor C101 and the resistor R103. The surface acoustic filter SAW generates a high-frequency oscillation signal, which is amplified by the transistor Q101, and then transmitted through the coil of the inductor L102; when the data output terminal DOUT of the encoding chip U101 outputs a low level, the surface acoustic filter SAW oscillates The device stops oscillating, and the transistor Q101 stops transmitting; when the high and low levels of the data output terminal DOUT of the encoding chip U101 are constantly changing, the presence or absence of the high-frequency carrier is corresponding.

Inductor L101 and capacitor C102 form a power filter circuit for supplying power to transistor Q101. Capacitor C103, capacitor C104, capacitor C105, and inductor L103 form a high-frequency resonant circuit. Changing the frequency of the surface acoustic filter SAW can change the frequency of emission. The wireless transmission circuit is a known circuit.

The working instruction circuit 22 of the wireless remote control includes components such as a resistor R102 and a light emitting diode D103, which are used for working instructions when the user presses a remote control button.

The second part in Fig. 1 is the main unit 2 of the automatic code-aligning wireless dimmer, including: wireless receiving circuit 3, microcontroller 4, code-pairing switch 5, non-volatile memory 6, manual dimming button 7, dimming execution Circuit 8. The host 2 of the wireless dimmer for automatic code matching is connected to the lamp 9 and the live wire of the AC 220V mains, and the lamp 9 is then connected to the neutral wire of the AC 220V mains, as shown in FIG. 1 . The following describes the working principle of the wireless dimmer host 2 for automatic code matching with reference to FIG. 1 and FIG. 3 .

The wireless receiving circuit 3 in FIG. 1 is used to receive the wireless signal of the wireless remote controller 1 and demodulate the remote control code. The circuit diagram of the wireless receiving circuit 3 is shown in 31 in FIG. 3 , which mainly includes antenna A1, transistor Q1, operational amplifiers U1A and U1B, detection diode D1 and other components.

Transistor Q1, detection diode D1 and its peripheral circuits (capacitors C1~C5, resistors R1~R3, R6) form a high-frequency amplification and detection circuit, and the detection output is added to the operational amplifier U1A through R7 and R8, and the operational amplifier U1A converts the detected The signal is amplified, and the resistor R9 is the feedback resistor of the operational amplifier U1A. Operational amplifier U1B, resistor R10 and diode D2 form a waveform shaping circuit. The output of pin 7 of the operational amplifier U1B is the demodulated and restored signal of the data output terminal DOUT of the encoder U101 of the wireless remote controller 1 . The wireless receiving circuit 3 is also a known circuit.

As shown in Figure 1, the microcontroller 4 is connected to the wireless receiving circuit 3, receives the code of the wireless remote controller 1 through the wireless receiving circuit 3, and divides the code into address code and command code and sends them to the nonvolatile memory 5 and Dimming executive circuit 8.

The electrical schematic diagram of the microcontroller is shown in 32 in FIG. 3 , and the pins SDA, SCL, and EN of the single-chip microcomputer U2 are respectively connected to the corresponding pins of the nonvolatile memory 6 (the electrical schematic diagram is shown in 33 in FIG. 3 ). The pin P1 of the single-chip microcomputer U2 is connected to the code switch S1, the pin P2 of the single-chip microcomputer U2 is connected to the manual dimming button S2, and the pin DIN of the single-chip microcomputer U2 is connected to the output terminal of the wireless receiving circuit schematic diagram 31 (that is, No. 7 in the figure pin output), and the pins P3 and P4 of the single-chip microcomputer U2 are connected with the dimming execution circuit 8 (see 36 in FIG. 3 for the electrical schematic diagram). The crystal oscillator Y1 and the stable compensation capacitors C12 and C13 form the clock circuit of the microcontroller U2. The resistor R12 and the capacitor C14 form the power-on reset circuit of the single-chip microcomputer U2. There is an automatic dimming program inside the single-chip microcomputer U2 to control the operation of the whole machine. There is also a RAM memory inside the single-chip microcomputer U2, which can be used to store the brightness of the light before the user turned off the light last time. memory function.

The code switch 5 in Fig. 1 (ie the code switch S1 of part 34 in Fig. 3) is used to set the working state of the dimmer, that is, the switch for setting the "code" state and the "normal operation" state. The code switch 5 is connected with the microcontroller 4 (ie, the pin P1 of the single-chip microcomputer U2).

When the code switch 5 was in an open state, the pin P1 of the microcontroller 4 (ie, the single-chip microcomputer U2) was at a high level, and when the microcontroller 4 (ie, the single-chip microcomputer U2) read that the pin P1 was at a high level, it judged It is in the state of "normal operation"; when the code switch 5 is in the closed state, the pin P1 of the microcontroller 4 (that is, the single-chip microcomputer U2) is at a low level, and the microcontroller 4 (that is, the single-chip microcomputer U2) reads that the pin P1 is When the level is low, it is judged to be in the "code matching" state.

The manual dimmer switch 7 in FIG. 1 (that is, the manual dimmer button S2 at part 35 in FIG. 3 ) is used for the user to directly manually adjust the light brightness.

The manual dimmer switch 7 is connected with the microcontroller 4 (that is, the pin P2 of the single-chip microcomputer U2). When the user presses the manual dimmer switch 7, the pin P2 of the microcontroller 4 (that is, the single-chip microcomputer U2) is at a low level, and when the microcontroller 4 (that is, the single-chip microcomputer U2) reads that the pin P2 is at a low level, it controls the dimming. The light actuator circuit 8 performs light adjustment.

The microcontroller 4 can decide to adjust the light or turn on/off the light according to the length of time the user presses the key. When the user presses the manual dimming switch 7 for more than 0.5 seconds, the micro-controller 4 controls the dimming executive circuit 8 to perform the dimming action: if the previous dimming was to brighten the light, then continue to gradually dim the light. When the brightness reaches the maximum, the light will be dimmed gradually; if the light was dimmed last time, the light will continue to be dimmed gradually, and when the light brightness reaches the minimum (off state), the light will be gradually brightened. When the user releases the manual dimming switch 7, the microcontroller 4 immediately stops the dimming action. When the time for the user to press the manual dimming switch 7 is less than 0.5 seconds, the microcontroller 4 controls the dimming execution circuit 8 to perform the light switching action: if the current light is on, then turn off the light; if the current light is off, Then turn on the light and adjust the brightness of the light to the brightness when the light was turned off last time. The memory function of the light brightness can be convenient for users to use.

Non-volatile memory 7 among Fig. 1 (being the non-volatile memory chip U3 of 2-3 part among Fig. 3), is connected with microcontroller 4 (being single-chip microcomputer U2), is used for storing the address code of corresponding remote controller, And in the case of power failure, the address code can still be saved, so that the address code data will not be lost.

Dimming executive circuit 8 in Fig. 1 (see part 36 in Fig. 3 for the electrical schematic diagram), in which triodes Q2, Q3 and their peripheral circuits (including diodes D7, D8, and resistors R20-R23) form a 50Hz signal to 220V AC The sampling circuit can transform the 50Hz sine wave signal into a 100Hz pulse signal, and the microcontroller 4 will use this signal as a synchronous signal for dimming. Thyristor Q6 and its peripheral circuits (including resistor R16, inductor L3, and capacitor C19) form a dimming control circuit, which is controlled by the microcontroller 4 to control the duration of the AC 220V mains power passing through the lamp 9. To achieve the purpose of controlling the brightness of the light. Since the operating frequency of the control circuit is 100Hz (obtained by the above-mentioned sampling circuit), human eyes will not feel flicker. Fuse F1 is the protection circuit, and LAMP is the lamp. The dimming executive circuit 36 can also control the switch of the light.

According to the working process of the utility model automatic coding wireless dimmer is as follows:

1. The wireless remote controller 1 has a fixed address code (assuming the address code is M) when it leaves the factory, while the address code of the automatic code-aligning dimmer host 2 is 0 when it leaves the factory. The user must perform "code matching" before use, that is, put the code switch 5 in the "code matching" position, and connect the automatic code dimmer host 2 to the live line of the AC 220V mains in series as shown in Figure 1;

2. The user presses any button on the wireless remote control 1, the circuit of the wireless remote control 1 works, encodes the remote control command and the address code (M) and then transmits it;

3. The main unit 2 of the automatic code dimmer receives the wireless remote control signal through the wireless receiving circuit 3 and sends it to the microcontroller 4 . The microcontroller 4 decomposes the remote control command and address code in the remote control signal, stores the address code in the non-volatile memory 6, and controls the dimming execution circuit 8 to perform dimming according to the remote control command. The user can know that the address code is set successfully according to the dimming result. This step is the "learning" and "memory" process of automatic code matching technology;

4. The user puts the code switch 5 in the "normal working" position, presses the remote control command button on the wireless remote control 1, the circuit of the wireless remote control 1 works, encodes the remote control command and address code (M) and then transmits. The host 2 of the automatic code dimmer receives the wireless remote control signal, and the microcontroller 4 decomposes the wireless remote control signal into a remote control command and an address code (M), and compares the address code (M) with the address code stored in the non-volatile memory 6 For comparison, if they are the same, the remote control command is executed; if they are different, the remote control command is not executed.

5. Through the wireless remote controller 1 , the user can adjust the lights, dim them, and turn on/off the lights. The microcontroller 4 can decide to adjust the light or turn on/off the light according to the length of time the user presses the key. When the user presses the dimming button S101 or button S102 in the wireless remote control code generation circuit 21 as shown in Figure 2 for more than 0.5 seconds, the microcontroller 4 controls the dimming execution circuit 8 to perform the dimming action: if the button is pressed Press the button S101 to gradually brighten the light until the brightness of the light reaches the maximum; if the button S102 is pressed, then gradually dim the light until the brightness of the light reaches the minimum (off state). When the user releases the dimming button S101 or the button S102, the microcontroller 4 immediately stops the dimming action. When the user presses the dimming button S101 or the button S102 for less than 0.5 seconds, the micro-controller 4 controls the dimming execution circuit 8 to perform the light switching action: if the button S102 is pressed, the light is turned off; if the button S101 is pressed, then Turn on the light and adjust the brightness of the light to the brightness when the light was turned off last time. The memory function of the light brightness can be convenient for users to use.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the utility model, and it should be understood that various changes and modifications can be made therein. In a broad sense, it does not depart from the present invention, so it is not as a limitation to the present utility model, as long as within the scope of the essential spirit of the present utility model, changes and deformations to the above-mentioned embodiments will fall within the scope of the claims of the present utility model Inside.

Claims (2)

1. An automatic code matching wireless dimmer, comprising: The wireless remote control transmitter is used to transmit wireless remote control commands and generate address codes; A wireless receiving circuit, used to receive the wireless signal of the wireless remote control transmitting circuit; A microcontroller, connected to the wireless receiving circuit, captures the address code of the wireless remote control transmitting circuit through the wireless receiving circuit, and processes the wireless remote control command; The dimming execution circuit connected with the micro-controller is used to execute the wireless remote control command of the wireless remote control transmitting circuit; It is characterized in that it also includes: A non-volatile memory, connected with the microcontroller, used to save the address code generated by the wireless remote control transmitting circuit; A pair of code switches is connected with the micro-controller and transmits the command for generating the code to the micro-controller. 2. The wireless dimmer of claim 1, further comprising a manual dimmer switch directly connected to said microcontroller.

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