CN219329835U - Line lamp capable of serial-parallel communication conversion - Google Patents
Line lamp capable of serial-parallel communication conversion Download PDFInfo
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- CN219329835U CN219329835U CN202320286594.1U CN202320286594U CN219329835U CN 219329835 U CN219329835 U CN 219329835U CN 202320286594 U CN202320286594 U CN 202320286594U CN 219329835 U CN219329835 U CN 219329835U
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Abstract
The utility model relates to the technical field of lighting lamps, in particular to a line lamp capable of being converted by serial-parallel communication. The LED lamp comprises a plurality of lamp strips, wherein each lamp strip comprises a serial-to-parallel conversion circuit, a control module and a light emitting module, the serial-to-parallel conversion circuits of the lamp strips are connected with each other, the serial-to-parallel conversion circuit receives an input signal and outputs a signal to the serial-to-parallel conversion circuit of the next lamp strip, the serial-to-parallel conversion circuit and the light emitting module are respectively connected with the control module, and when the control module continuously sends square wave signals to the serial-to-parallel conversion circuit, the lamp strips work in a serial mode; when the control module does not send square wave signals to the serial-parallel conversion circuit, the light bar works in a parallel mode. Continuously transmitting square wave signals through the singlechip to enable the lamp strip to work in a serial mode; the singlechip can not provide square wave drive relay for special reasons, and the lamp strip can work in a parallel mode. The subsequent light bar can still normally receive signals, so that the problem that the subsequent light bar cannot normally work due to chain reaction caused by abnormality of a certain light bar is avoided.
Description
Technical Field
The utility model relates to the technical field of lighting lamps, in particular to a line lamp capable of being converted by serial-parallel communication.
Background
The LED light bar is an indispensable part in application scenes such as urban illumination, night scene beautification and the like. The existing light bars have serial communication and parallel communication. Both communication modes have respective advantages and disadvantages. The serial communication's lamp strip wiring is simple, but probably causes all follow-up lamp strips to receive the signal because of the quality problem of certain lamp in the middle, can not normally work. The parallel communication light bars can cause few abnormity of other light bars due to the quality problem of a certain light; however, parallel communication cannot be uniformly encoded, and address line assistance is required for uniform encoding.
Disclosure of Invention
The utility model provides a line lamp capable of being converted from serial to parallel communication, and aims to design a lamp strip combining the advantages of two communication modes.
The utility model provides a line lamp capable of being converted by serial-parallel communication, which comprises a plurality of lamp bars, wherein each lamp bar comprises a serial-parallel conversion circuit, a control module and a light emitting module, the serial-parallel conversion circuits of the lamp bars are mutually connected, the serial-parallel conversion circuit receives an input signal and outputs a signal to the serial-parallel conversion circuit of the next lamp bar, the serial-parallel conversion circuit and the light emitting module are respectively connected with the control module, and when the control module continuously sends square wave signals to the serial-parallel conversion circuit, the lamp bars work in a serial mode; when the control module does not send square wave signals to the serial-parallel conversion circuit, the light bar works in a parallel mode.
As a further improvement of the utility model, when the light bar works in the parallel mode, the input signal is directly output to the next light bar after passing through the serial-parallel conversion circuit; when the light bar works in the series mode, an input signal sequentially passes through the signal input end of the serial-parallel conversion circuit, the control module and the signal output end of the serial-parallel conversion circuit and then is output to the next light bar.
As a further improvement of the utility model, the serial-parallel conversion circuit comprises a relay U4, wherein the 2 nd pin and the 6 th pin of the relay U4 receive input signals, and the 3 rd pin of the relay U4 outputs signals to the next light bar.
As a further improvement of the utility model, the control module comprises a singlechip U1, resistors R3 and R4 and diodes D1 and D2, wherein the 11 th pin of the singlechip U1 is respectively connected with one end of the resistor R3 and the negative electrode of the diode D1, the other end of the resistor R3 is connected with the 5 th pin of the relay U4, the 12 th pin of the singlechip U1 is respectively connected with one end of the resistor R4 and the negative electrode of the diode D2, the other end of the resistor R4 is connected with the 4 th pin of the relay U4, and the positive electrodes of the diodes D1 and D2 are grounded.
As a further improvement of the utility model, the control module comprises a detection source, the detection source detects the state of an input signal or an output signal in the control module, and when the control module cannot receive the input signal for a long time, a plurality of the light bars are temporarily switched into a parallel mode; when the control module cannot receive the input signal and the output signal is normal, the plurality of lamp bars are switched into a parallel mode; when the control module receives an input signal and cannot detect an output signal, the plurality of light bars are switched into a parallel mode.
As a further improvement of the utility model, each light bar further comprises a power supply module, and the power supply modules are respectively connected with the serial-parallel conversion circuit, the control module and the light emitting module and are used for supplying power.
As a further improvement of the utility model, the light emitting module comprises an LED driving circuit and LED lamp beads, and the control module, the LED driving circuit and the LED lamp beads are sequentially connected.
As a further improvement of the utility model, the LED driving circuit is provided with a constant current driving chip of SPI communication protocol.
The beneficial effects of the utility model are as follows: the relay is driven by square wave signals to realize the conversion of serial-parallel communication. The singlechip continuously transmits square wave signals to enable the lamp strip to work in a serial mode; once the singlechip is out of normal operation due to special reasons; square wave driven relays cannot be provided and the light bars will operate in parallel mode. The subsequent light bar can still normally receive signals, so that the problem that the subsequent light bar cannot normally work once a certain light bar is abnormal to cause chain reaction is avoided.
Drawings
FIG. 1 is an overall block diagram of a line lamp of the present utility model that is convertible for serial-to-parallel communication;
FIG. 2 is a circuit diagram of a control module of the present utility model;
FIG. 3 is a circuit diagram of a serial-to-parallel conversion circuit in the present utility model;
FIG. 4 is a circuit diagram of an LED driver circuit in the present utility model;
FIG. 5 is a circuit diagram of a power module of the present utility model;
FIG. 6 is a flow chart of the detection of the light bar signal in the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1, the line lamp capable of serial-parallel communication conversion comprises a plurality of lamp bars, each lamp bar comprises a serial-parallel conversion circuit, a control module and a light emitting module, the serial-parallel conversion circuits of the lamp bars are connected with each other, the serial-parallel conversion circuits receive input signals and output signals to the serial-parallel conversion circuit of the next lamp bar, the serial-parallel conversion circuits and the light emitting modules are respectively connected with the control module, and when the control module continuously sends square wave signals to the serial-parallel conversion circuits, the lamp bars work in a serial mode; when the control module does not send square wave signals to the serial-parallel conversion circuit, the light bar works in a parallel mode.
When the light bar works in the parallel mode, the input signal is directly output to the next light bar after passing through the serial-parallel conversion circuit; when the light bar works in the series mode, an input signal sequentially passes through the signal input end of the serial-parallel conversion circuit, the control module and the signal output end of the serial-parallel conversion circuit and then is output to the next light bar.
As shown in fig. 3, the serial-parallel conversion circuit includes a relay U4, the 2 nd and 6 th pins of the relay U4 receive input signals, and the 3 rd pin of the relay U4 outputs signals to the next light bar.
As shown in fig. 2, the control module includes a single chip microcomputer U1, resistors R3, R4, diodes D1, D2, the 11 th pin of the single chip microcomputer U1 is connected with one end of the resistor R3 and the cathode of the diode D1 respectively, the other end of the resistor R3 is connected with the 5 th pin of the relay U4, the 12 th pin of the single chip microcomputer U1 is connected with one end of the resistor R4 and the cathode of the diode D2 respectively, the other end of the resistor R4 is connected with the 4 th pin of the relay U4, and the anodes of the diodes D1, D2 are grounded.
As shown in fig. 3, the relay U4 in the serial-parallel conversion circuit is driven by a square wave signal, and the singlechip U1 in the control module continuously transmits the square wave signal, so that the lamp strip can work in a serial mode. Once the singlechip U1 cannot work normally due to special reasons; the square wave drive relay U4 cannot be provided and the light bar will operate in parallel mode. The subsequent light bar can still normally receive signals and work in a normal state.
As shown in fig. 2 and 3, the series mode signal path: DI → D + → singlechip → A → DO, input signal DI passes to singlechip U1 through relay U4, and singlechip U1 receives the signal drive LED and shows, and the signal is sent DO to the transmission, exports to next lamp strip.
Parallel mode signal path: di→do, the input signal DI is directly transmitted to DO through the relay U4, and output to the next light bar.
As shown in fig. 3, DI signals corresponding to the 2 nd pin and the 6 th pin of the relay U4 are input signal ends of the light bar, and receive an output signal of the last light bar. In parallel mode: the DO at the left side of the relay U4 is in butt joint with the DI at the right side of the relay U4 in a butt joint suspension manner, namely, a DI signal at the left side of the relay U4 is directly output to the next lamp strip from the DO without being connected with the singlechip U1; in series mode: the signal point A is abutted to the DO on the left side of the relay U4, the signal point D+ is abutted to the DI on the right side of the relay U4, namely, an input signal DI on the right side of the relay U4 is connected to the singlechip U1 through the D+ and meanwhile, the singlechip U1 transmits an output signal DO on the left side of the relay U4 through the signal point A so as to be output to the next light bar.
As shown in fig. 5, each light bar further includes a power module, which is connected to the serial-parallel conversion circuit, the control module, and the light emitting module, respectively, to supply power to each module in the light bar.
As shown in fig. 1 and 4, the light emitting module includes an LED driving circuit and an LED lamp bead, and the control module, the LED driving circuit and the LED lamp bead are sequentially connected. As shown in fig. 4, the LED driving circuit adopts a constant current driving chip of an SPI communication protocol.
Except that the singlechip is abnormal, the lamp bar is switched into a parallel mode; the singlechip also detects the peripheral circuit state in real time when working normally and judges whether to switch the lamp strip into a parallel mode; so as to reduce the influence of the abnormality of the front light bar on the subsequent light bars.
The control module comprises a detection source for detecting the state of a peripheral circuit in real time, wherein the detection source detects the state of an input signal or an output signal in the control module, the detection flow of the state of the peripheral circuit is shown in figure 6, when the singlechip U1 cannot receive the DI signal for a long time, the singlechip U1 is temporarily switched into a parallel mode, then whether the DO signal is normal is detected, if the DO signal is normal, the problem of the signal input circuit is judged, and the lamp strip is switched into the parallel mode; when the singlechip U1 can receive the DI signal but does not detect the DO signal, the signal output circuit is judged to be problematic, and the lamp bar is switched into a parallel mode.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (8)
1. The line lamp capable of being converted by serial-parallel communication is characterized by comprising a plurality of lamp bars, wherein each lamp bar comprises a serial-parallel conversion circuit, a control module and a light emitting module, the serial-parallel conversion circuits of the lamp bars are mutually connected, the serial-parallel conversion circuit receives an input signal and outputs a signal to the serial-parallel conversion circuit of the next lamp bar, the serial-parallel conversion circuit and the light emitting module are respectively connected with the control module, and when the control module continuously sends square wave signals to the serial-parallel conversion circuit, the lamp bars work in a serial mode; when the control module does not send square wave signals to the serial-parallel conversion circuit, the light bar works in a parallel mode.
2. The line lamp of claim 1, wherein when the lamp bar is operated in the parallel mode, the input signal is directly output to the next lamp bar after passing through the serial-parallel conversion circuit; when the light bar works in the series mode, an input signal sequentially passes through the signal input end of the serial-parallel conversion circuit, the control module and the signal output end of the serial-parallel conversion circuit and then is output to the next light bar.
3. The line lamp capable of being converted by serial-parallel communication according to claim 1, wherein the serial-parallel conversion circuit comprises a relay U4, a 2 nd pin and a 6 th pin of the relay U4 receive input signals, and a 3 rd pin of the relay U4 outputs signals to a next lamp bar.
4. The line lamp capable of serial-parallel communication conversion according to claim 3, wherein the control module comprises a single chip microcomputer U1, resistors R3 and R4 and diodes D1 and D2, the 11 th pin of the single chip microcomputer U1 is respectively connected with one end of the resistor R3 and the negative electrode of the diode D1, the other end of the resistor R3 is connected with the 5 th pin of the relay U4, the 12 th pin of the single chip microcomputer U1 is respectively connected with one end of the resistor R4 and the negative electrode of the diode D2, the other end of the resistor R4 is connected with the 4 th pin of the relay U4, and the positive electrodes of the diodes D1 and D2 are grounded.
5. The line lamp of claim 1, wherein the control module comprises a detection source, the detection source detects a state of an input signal or an output signal in the control module, and when the control module cannot receive the input signal for a long time, the lamp strip is temporarily switched to a parallel mode; when the control module cannot receive the input signal and the output signal is normal, the light bar is switched to a parallel mode; when the control module receives an input signal and cannot detect an output signal, the light bar is switched to a parallel mode.
6. The line lamp of claim 1, wherein each of the light bars further comprises a power module, and the power modules are respectively connected with the serial-parallel conversion circuit, the control module and the light emitting module and supply power.
7. The line lamp capable of being converted from serial to parallel communication according to claim 1, wherein the light emitting module comprises an LED driving circuit and an LED lamp bead, and the control module, the LED driving circuit and the LED lamp bead are sequentially connected.
8. The line lamp capable of being converted by serial-parallel communication according to claim 7, wherein the LED driving circuit is provided with a constant current driving chip of SPI communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286594.1U CN219329835U (en) | 2023-02-15 | 2023-02-15 | Line lamp capable of serial-parallel communication conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286594.1U CN219329835U (en) | 2023-02-15 | 2023-02-15 | Line lamp capable of serial-parallel communication conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219329835U true CN219329835U (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320286594.1U Active CN219329835U (en) | 2023-02-15 | 2023-02-15 | Line lamp capable of serial-parallel communication conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219329835U (en) |
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2023
- 2023-02-15 CN CN202320286594.1U patent/CN219329835U/en active Active
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