CN216700396U - Polarity automatic adaptation decoding control panel and lighting system - Google Patents
Polarity automatic adaptation decoding control panel and lighting system Download PDFInfo
- Publication number
- CN216700396U CN216700396U CN202122724729.1U CN202122724729U CN216700396U CN 216700396 U CN216700396 U CN 216700396U CN 202122724729 U CN202122724729 U CN 202122724729U CN 216700396 U CN216700396 U CN 216700396U
- Authority
- CN
- China
- Prior art keywords
- signal
- decoding control
- control module
- conversion module
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a polarity automatic adaptation decoding control panel and a lighting system, wherein the polarity automatic adaptation decoding control panel comprises: a circuit board provided with a signal input terminal; the conversion module is arranged on the circuit board, the input end of the conversion module is connected with the signal input end, and the conversion module can invert the signal level of the signal input end; and the decoding control module is respectively connected with the output end of the conversion module and the control end of the conversion module. When the signal line connects the signal polarity that the circumstances such as reverse, installation reversal lead to signal input part to obtain when opposite, can carry out reversal processing to the signal through conversion module, make decoding control module can obtain the signal of correct polarity, realize the effect of automatic adaptation signal polarity, be favorable to making the use more nimble, convenient, expand application range, satisfy the user demand.
Description
Technical Field
The invention relates to the field of illumination control, in particular to a polarity automatic adaptation decoding control board and a lighting system.
Background
DMX512 is a digital dimming protocol, which can be used to digitally control dimmers and other control devices in a stage, theater, studio, etc., and is often used as a control protocol between a controller and a lamp. Two signal lines are needed for DMX512 communication, and the polarity of a controller signal line and a controlled device signal line is reversed in the installation process, so that communication between the controller signal line and the controlled device signal line is wrong, and the use is inconvenient; or, for products such as the guide rail lamp, the signal line formed by the metal strip on the guide rail needs to be corresponding to the polarity of the signal line formed by the electrode on the lamp, so that the installation direction of the lamp is limited, and the installation direction of the lamp cannot be adjusted to adjust the light-emitting angle to meet the use requirement.
Therefore, in the prior art, the polarities of the signal line of the controller and the signal line of the controlled device must be corresponding to each other so as to be normally used, and the problems that the signal line cannot work due to reversed polarity connection, the installation direction is limited and the like exist, so that the use is inconvenient.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, the present invention proposes a polarity auto-adaptive decoding control board capable of automatically adapting the signal polarity.
The invention also provides a lighting system which can automatically adapt to the master controller to obtain the signal polarity so as to control the lamp to work.
The polar automatic adaptation decoding control board according to an embodiment of the first aspect of the present invention includes: a circuit board provided with a signal input terminal; the conversion module is arranged on the circuit board, the input end of the conversion module is connected with the signal input end, and the conversion module can invert the signal level of the signal input end; and the decoding control module is respectively connected with the output end of the conversion module and the control end of the conversion module.
The polarity automatic adaptation decoding control board according to the embodiment of the invention has at least the following beneficial effects: the signal input end on the circuit board can be connected with the signal output end of an external main controller to obtain a control signal, and the control signal is transmitted to the decoding control module through the conversion module. If the decoding control module can not correctly identify the control signal, namely when the polarity is reversed, the decoding control module controls the conversion module to invert the level of the control signal acquired by the signal input end, namely, the polarity of the signal is reversed, and then the decoding control module can correctly identify the control signal. With this, when the signal line connects the signal polarity that the circumstances such as reverse, installation were reversed and lead to signal input part to obtain when opposite, can carry out reversal processing to the signal through conversion module, make decoding control module can obtain the signal of correct polarity, realize the effect of automatic adaptation signal polarity, be favorable to making the use more nimble, convenient, expand application range, satisfy the user demand.
According to some embodiments of the present invention, the conversion module includes a positive phase unit and a negative phase unit both disposed on the circuit board, the signal input terminal is connected to the input terminal of the positive phase unit and the input terminal of the negative phase unit, and the decoding control module is connected to the output terminal of the positive phase unit, the control terminal of the positive phase unit, the output terminal of the negative phase unit, and the control terminal of the negative phase unit.
According to some embodiments of the present invention, the normal phase unit includes a first level shifter disposed on the circuit board, an input terminal of the first level shifter is connected to the signal input terminal, an output terminal of the first level shifter is connected to the decoding control module, and a control terminal of the first level shifter is connected to the decoding control module.
According to some embodiments of the present invention, the inverting unit includes a switch tube disposed on the circuit board and a second level shifter, the signal input terminal is connected to the input terminal of the second level shifter through the switch tube, the output terminal of the second level shifter is connected to the decoding control module, and the control terminal of the second level shifter is connected to the decoding control module.
According to some embodiments of the present invention, the decoding control module further comprises a current protection unit disposed on the circuit board, and the output terminal of the conversion module is connected to the decoding control module through the current protection unit.
According to some embodiments of the invention, the current protection unit comprises a diode, the output of the conversion module is connected to the cathode of the diode, and the decoding control module is connected to the anode of the diode.
According to some embodiments of the present invention, the apparatus further comprises an anti-jamming unit disposed on the circuit board, and the output end of the conversion module is connected to the decoding control module through the anti-jamming unit.
According to some embodiments of the present invention, the anti-interference unit includes a pull-up resistor disposed on the circuit board, one end of the pull-up resistor is connected to a power supply terminal, and the other end of the pull-up resistor is connected to the output terminal of the conversion module and the decoding control module, respectively.
According to some embodiments of the present invention, the apparatus further comprises a signal adapting unit disposed on the circuit board, and the converting module is connected to the signal input terminal through the signal adapting unit.
The lighting system comprises a main controller, a lamp and the automatic polarity adapting and decoding control panel, wherein the main controller is provided with a signal output end, the signal output end is connected with the signal input end, and the decoding control module is connected with the lamp.
The lighting system provided by the embodiment of the invention at least has the following beneficial effects: the user passes through the master controller and produces control signal, and control signal transmits to decoding control module through signal output end, signal input end and conversion module, and if decoding control module can discern control signal, then decode control signal and produce corresponding drive signal and transmit to lamps and lanterns to order about lamps and lanterns to work as required, realize the control to lamps and lanterns with this process. When the signal line between the signal output end and the signal input end of the main controller is reversely connected, the decoding control module cannot directly identify the control signal, and then the decoding control module controls the conversion module to perform level inversion processing on the control signal, so that the polarity of the control signal is reversed, and the decoding control module can correctly identify the control signal. Therefore, the effect of automatically adapting the polarity of the control signal is realized, the use is more flexible and convenient, the use range is expanded, and the use requirement is met.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a circuit diagram of one embodiment of the present invention;
FIG. 2 is a waveform diagram illustrating a DMX512 signal with normal polarity;
fig. 3 is a waveform diagram of the DMX512 signal when the polarity is reversed.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1, the polarity automatic adaptation decoding control board according to the embodiment of the present invention includes: a circuit board provided with a signal input terminal 100; the conversion module 200 is arranged on the circuit board, the input end of the conversion module 200 is connected with the signal input end 100, and the conversion module 200 can reverse the signal level of the signal input end 100; the decoding control module 300 is connected to the output terminal of the converting module 200 and the control terminal of the converting module 200.
The signal input terminal 100 on the circuit board can be connected with the signal output terminal of an external master controller to obtain a control signal, and the control signal is transmitted to the decoding control module 300 through the conversion module 200. If the decoding control module 300 cannot correctly recognize the control signal, that is, if the polarity is reversed, the decoding control module 300 controls the converting module 200 to invert the level of the control signal obtained from the signal input terminal 100, that is, to invert the polarity of the signal, so that the decoding control module 300 can correctly recognize the control signal. Therefore, when the signal line is reversely connected, the installation is reversed and the like, so that the signal polarity acquired by the signal input end 100 is opposite, the signal can be reversely processed through the conversion module 200, the decoding control module 300 can acquire a signal with correct polarity, the effect of automatically adapting the signal polarity is realized, the work of the external controlled device of the subsequent control of the decoding control module 300 is convenient, the use is more flexible and convenient, the use range is expanded, and the use requirement is met.
The signal input terminal 100 may be an implementation manner of the decoding control module 300, which may include a single chip, an embedded chip, an FPGA, and the like. Taking the DMX512 signal as an example, fig. 2 is a signal waveform with normal polarity, and fig. 3 is a signal waveform with opposite polarity, the signal level is inverted by the conversion module 200, so that the signal waveform of fig. 3 can be converted into the signal waveform of fig. 2, and the decoding control module 300 can correctly identify the signal.
Referring to fig. 1, in some embodiments of the present invention, the conversion module 200 includes a positive phase unit 210 and an inverse phase unit 220 both disposed on a circuit board, the signal input terminal 100 is connected to an input terminal of the positive phase unit 210 and an input terminal of the inverse phase unit 220, respectively, and the decoding control module 300 is connected to an output terminal of the positive phase unit 210, a control terminal of the positive phase unit 210, an output terminal of the inverse phase unit 220, and a control terminal of the inverse phase unit 220, respectively.
The signals acquired by the signal input terminal 100 are respectively transmitted to the normal phase unit 210 and the phase reversal unit 220, when working, the decoding control module 300 controls the normal phase unit 210 to work normally and controls the phase reversal unit 220 to stop working, the decoding control module 300 acquires the signals through the normal phase unit 210, and if the decoding control module 300 can correctly identify the signals, the current state is maintained; if the decoding control module 300 cannot recognize the signal, that is, the signal polarity is opposite, the decoding control module 300 controls the normal phase unit 210 to stop working and controls the inverse phase unit 220 to work normally, and the decoding control module 300 obtains the signal through the inverse phase unit 220, so that the decoding control module 300 can correctly recognize the signal. Therefore, the effect of automatically adapting the signal polarity is realized through the positive phase unit 210 and the negative phase unit 220, the structure is simple, and the implementation is convenient.
Referring to fig. 1, in some embodiments of the present invention, the normal phase unit 210 includes a first level shifter 211 disposed on the circuit board, an input terminal of the first level shifter 211 is connected to the signal input terminal 100, an output terminal of the first level shifter 211 is connected to the decoding control module 300, and a control terminal of the first level shifter 211 is connected to the decoding control module 300.
After the signal obtained by the signal input terminal 100 is processed by the first level shifter 211, the phase of the signal remains unchanged, and the first level shifter 211 can adjust the level of the signal, which is beneficial for the subsequent decoding control module 300 to identify the signal more accurately and improve the reliability.
Referring to fig. 1, in some embodiments of the present invention, the inverting unit 220 includes a switch 221 and a second level shifter 222 disposed on the circuit board, the signal input terminal 100 is connected to an input terminal of the second level shifter 222 through the switch 221, an output terminal of the second level shifter 222 is connected to the decoding control module 300, and a control terminal of the second level shifter 222 is connected to the decoding control module 300.
After the signal obtained from the signal input terminal 100 is processed by the switching tube 221 and the second level shifter 222, the effect of inverting the signal level, i.e., phase inversion, is achieved.
The switch tube 221 may be implemented by a transistor, a MOS tube, or the like. In some embodiments of the present invention, the N-type transistor is connected as a common emitter circuit, an input terminal of the common emitter circuit is connected to the signal input terminal 100, an output terminal of the common circuit is connected to an input terminal of the second level shifter 222, and the inversion processing of the input signal is implemented according to a characteristic that the input terminal and the output terminal of the common emitter circuit are in an inverted state.
The decoding control module 300 can control whether the first level shifter 211 and the second level shifter 222 work by controlling the levels of the enable terminals of the first level shifter 211 and the second level shifter 222, and further select to receive a signal in a positive phase or a negative phase, thereby achieving the effect of automatically adapting the signal polarity.
The first level shifter 211 and the second level shifter 222 may be implemented by a common level shifter chip or a level shifter circuit, such as an RS0101 chip.
Referring to fig. 1, in some embodiments of the present invention, a current protection unit 400 is further included, and the output terminal of the conversion module 200 is connected to the decoding control module 300 through the current protection unit 400.
By providing the current protection unit 400, it is possible to prevent an excessive current from being generated when a signal is transmitted to the decoding control module 300, avoid damaging the decoding control module 300, and facilitate improvement of reliability.
Referring to fig. 1, in some embodiments of the present invention, the current protection unit 400 includes a diode, the output terminal of the conversion module 200 is connected to the cathode of the diode, and the decoding control module 300 is connected to the anode of the diode.
By utilizing the unidirectional conduction characteristic of the diode, the anode of the diode is connected with the decoding control module 300, so that large current can be prevented from flowing into the decoding control module 300, the decoding control module 300 is prevented from being damaged by the large current, and the LED decoding control module is simple in structure and convenient to implement.
Referring to fig. 1, in some embodiments of the present invention, the apparatus further includes an anti-jamming unit 500 disposed on the circuit board, and an output terminal of the conversion module 200 is connected to the decoding control module 300 through the anti-jamming unit 500.
In order to prevent the level of the terminal pin of the decoding control module 300 receiving the output signal of the conversion module 200 from being unstable due to interference and the like, the level of the terminal pin of the decoding control module 300 receiving the output signal of the conversion module 200 can be more stable and the reliability can be improved by providing the anti-interference unit 500 connected with the decoding control module 300.
Referring to fig. 1, in some embodiments of the present invention, the anti-interference unit 500 is a pull-up resistor disposed on the circuit board, one end of the pull-up resistor is connected to the power supply terminal, and the other end of the pull-up resistor is connected to the output terminal of the conversion module 200 and the decoding control module 300, respectively.
The pull-up resistor is connected with the decoding control module 300, namely, the input pin of the decoding control module 300 is connected with the pull-up resistor, so that the level state of the input pin of the decoding control module 300 is more stable, the error action of the decoding control module 300 is prevented, the anti-interference capability is enhanced, and the reliability and the stability are improved.
The immunity unit 500 may also be an embodiment that includes a pull-down resistor.
Referring to fig. 1, in some embodiments of the present invention, the signal adapter 600 is further included on the circuit board, and the conversion module 200 is connected to the signal input terminal 100 through the signal adapter 600.
Since the type of signal obtained by the signal input terminal 100 may be different from the type of signal that can be recognized by the decoding control module 300, for example: the signal type that signal input part 100 obtained is 485 difference signals, and the signal type that control module 300 discerned of decoding is the TTL signal, consequently, through being provided with signal adaptation unit 600, converts the signal type that signal input part 100 obtained into the signal type that control module 300 can discern of decoding, is favorable to improving the application scope of circuit, makes the use more convenient.
The signal adaptation unit 600 may be an embodiment comprising a MAX485 chip or the like capable of converting the signal type.
The lighting system according to the embodiment of the second aspect of the present invention includes a main controller, a lamp and the above-mentioned polarity automatic adaptation decoding control board, the main controller is provided with a signal output end, the signal output end is connected with the signal input end 100, and the decoding control module 300 is connected with the lamp.
The user generates a control signal through the master controller, the control signal is transmitted to the decoding control module 300 through the signal output end, the signal input end 100 and the conversion module 200, if the decoding control module 300 can recognize the control signal, the control signal is decoded and a corresponding driving signal is generated and transmitted to the lamp, so that the lamp is driven to work as required, and the lamp is controlled in the process. When the signal line between the signal output terminal of the master controller and the signal input terminal 100 is connected in reverse, the decoding control module 300 cannot directly identify the control signal, and the decoding control module 300 controls the conversion module 200 to perform level inversion processing on the control signal, so that the polarity of the control signal is reversed, and the decoding control module 300 can correctly identify the control signal. Therefore, the effect of automatically adapting the polarity of the control signal is realized, the use is more flexible and convenient, the use range is expanded, and the use requirement is met.
In some embodiments, the polarity auto-adaptive decoder control board may be an implementation disposed within the luminaire.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (9)
1. Polarity automatic adaptation control panel that decodes, its characterized in that includes:
a circuit board provided with a signal input terminal (100);
the conversion module (200) is arranged on the circuit board, the input end of the conversion module (200) is connected with the signal input end (100), and the conversion module (200) can invert the signal level of the signal input end (100);
the decoding control module (300) is respectively connected with the output end of the conversion module (200) and the control end of the conversion module (200);
the conversion module (200) comprises a normal phase unit (210) and an inverse phase unit (220) which are both arranged on the circuit board, the signal input end (100) is respectively connected with the input end of the normal phase unit (210) and the input end of the inverse phase unit (220), and the decoding control module (300) is respectively connected with the output end of the normal phase unit (210), the control end of the normal phase unit (210), the output end of the inverse phase unit (220) and the control end of the inverse phase unit (220).
2. The polar auto-adaptive decoding control board according to claim 1, wherein: the normal phase unit (210) comprises a first level shifter (211) arranged on the circuit board, the input end of the first level shifter (211) is connected with the signal input end (100), the output end of the first level shifter (211) is connected with the decoding control module (300), and the control end of the first level shifter (211) is connected with the decoding control module (300).
3. The polar auto-adaptive decoding control board according to claim 1, wherein: the inverting unit (220) comprises a switch tube (221) and a second level shifter (222), the switch tube (221) and the second level shifter (222) are arranged on the circuit board, the signal input end (100) is connected with the input end of the second level shifter (222) through the switch tube (221), the output end of the second level shifter (222) is connected with the decoding control module (300), and the control end of the second level shifter (222) is connected with the decoding control module (300).
4. The polar auto-adaptive decoding control board according to claim 1, wherein: the circuit board is characterized by further comprising a current protection unit (400) arranged on the circuit board, and the output end of the conversion module (200) is connected with the decoding control module (300) through the current protection unit (400).
5. The polar auto-adaptive decoding control board according to claim 4, wherein: the current protection unit (400) comprises a diode, the output end of the conversion module (200) is connected with the cathode of the diode, and the decoding control module (300) is connected with the anode of the diode.
6. The polar auto-adaptive decoding control board according to claim 1, wherein: the circuit board is characterized by further comprising an anti-interference unit (500) arranged on the circuit board, and the output end of the conversion module (200) is connected with the decoding control module (300) through the anti-interference unit (500).
7. The polar auto-adaptive decoding control board according to claim 6, wherein: the anti-interference unit (500) comprises a pull-up resistor arranged on the circuit board, one end of the pull-up resistor is connected with a power supply end, and the other end of the pull-up resistor is respectively connected with the output end of the conversion module (200) and the decoding control module (300).
8. The polar auto-adaptive decoding control board according to claim 1, wherein: the circuit board is characterized by further comprising a signal adapting unit (600) arranged on the circuit board, and the converting module (200) is connected with the signal input end (100) through the signal adapting unit (600).
9. Light system, its characterized in that: including master controller, lamps and lanterns and the automatic adaptation of polarity decoding control panel of any claim from 1 to 8, the master controller is provided with signal output, signal output with signal input (100) is connected, decoding control module (300) with lamps and lanterns are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724729.1U CN216700396U (en) | 2021-11-08 | 2021-11-08 | Polarity automatic adaptation decoding control panel and lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122724729.1U CN216700396U (en) | 2021-11-08 | 2021-11-08 | Polarity automatic adaptation decoding control panel and lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216700396U true CN216700396U (en) | 2022-06-07 |
Family
ID=81833121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122724729.1U Active CN216700396U (en) | 2021-11-08 | 2021-11-08 | Polarity automatic adaptation decoding control panel and lighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216700396U (en) |
-
2021
- 2021-11-08 CN CN202122724729.1U patent/CN216700396U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7983012B2 (en) | Communication circuit for a digital electronic dimming ballast | |
| JP6382825B2 (en) | Digital communication receiver interface circuit for line pairs with duty cycle imbalance compensation | |
| US8878644B2 (en) | Lighting control protocol | |
| EP2640166A1 (en) | High power dimmer and dimming system having switchable power modes, dimming device and method for transmitting power and dimming commands | |
| US9603224B2 (en) | Interface circuit for signal transmission | |
| CN104596049A (en) | Current loop communication circuit and air conditioner | |
| CN216700396U (en) | Polarity automatic adaptation decoding control panel and lighting system | |
| CN113606761A (en) | Current loop communication circuit and air conditioner | |
| CN114071838A (en) | Polarity automatic adaptation decoding control panel and lighting system | |
| CN214704618U (en) | Serial port communication multiplexing circuit | |
| CN101453807B (en) | Lamp light driving device and lighting system thereof | |
| CN210327616U (en) | HBS communication receiving circuit | |
| CN113179564A (en) | Remote control dimming LED lamp compatible with 0-10V dimmer | |
| JP2000133468A (en) | Lighting system | |
| CN111836433A (en) | Control circuit of power supply | |
| CN215268790U (en) | Infrared remote control LED lamp capable of being used in combined mode | |
| CN217770428U (en) | Anti-interference lamp belt control circuit, controller and lighting system | |
| CN216599583U (en) | Communication circuit, electronic equipment and communication system | |
| CN215601524U (en) | Dimming and color-mixing system based on pulse phase control and lighting lamp | |
| CN113068287B (en) | Dimming circuit with stable output voltage | |
| CN216626110U (en) | Dimming control circuit, dimmer, drive circuit and lighting device | |
| CN220440964U (en) | Dimming circuit and driving power supply | |
| CN212211478U (en) | DALI interface circuit for intelligent household lighting control | |
| JP2010078197A (en) | Communication device and air conditioner including the same | |
| US20230408603A1 (en) | Driving circuit, magnetic sensing circuit, and electrical device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |