CN211152287U - Projection system based on wisdom street lamp - Google Patents
Projection system based on wisdom street lamp Download PDFInfo
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- CN211152287U CN211152287U CN201920910879.1U CN201920910879U CN211152287U CN 211152287 U CN211152287 U CN 211152287U CN 201920910879 U CN201920910879 U CN 201920910879U CN 211152287 U CN211152287 U CN 211152287U
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Abstract
The utility model discloses a projection system based on intelligent street lamp, including street lamp module, projection lamp module, first power module, second power module, first switch controller module, second switch controller module, the control unit module, input module; the utility model provides a projection system based on wisdom street lamp of projection lamp synchronous control strategy.
Description
Technical Field
The utility model relates to a projection field, more specifically the theory that says so, it relates to projection system based on wisdom street lamp.
Background
Landscape brightening has become common for improving the modernization degree of cities, beautifying the urban environment, improving the image of the cities and creating good urban living atmosphere.
In the traditional landscape brightening project, due to the maturity of L ED technology, lamps mainly based on L ED are widely popularized in urban landscape brightening, and are mainly distributed on wall surfaces, branches and the like.
The intelligent street lamp is widely applied, the street lamp pole is wide in city coverage range and complete in resource, the intelligent street lamp is a good carrier for city landscape lighting engineering, and the projection system is installed on the street lamp pole, so that the intelligent street lamp has great advantages of improving the effect layering of the city lighting engineering and improving the content variability. And is also a good supplement to the city lightening project.
There are difficulties in placing projector systems on street light poles:
1. the mainstream projection is of a slide type, and is applied to an advertisement lamp at present, but the content cannot be changed. Mainly projected on the ground or wall.
2. There is also a conventional projector-type projection system, a digital projection system, which is difficult to be used for a long time in environments such as high temperature and high humidity if it cannot be well combined with a lamp in outdoor use.
3. The lighting engineering is systematized and not single, so that the content projected on one road or a plurality of roads, preferably each projection lamp has good complementary and linkage effects, and an intelligent system is needed for supporting.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a projecting system based on wisdom street lamp of projecting lamp synchronous control strategy.
The technical scheme of the utility model as follows:
the projection system based on the intelligent street lamp comprises a street lamp module, a projection lamp module, a first power supply module, a second power supply module, a first switch controller module, a second switch controller module, a control unit module and an input end module;
the first power supply module is connected with the street lamp module and supplies power to the street lamp module; the second power supply module is connected with the projection lamp module and supplies power to the projection lamp module; the first switch controller module is connected with the first power supply module, the second switch controller module, the input end module and the control unit module; the control unit module is connected with the second switch controller module, the input end module and the projection lamp module; the second switch controller module is connected with the second power supply module.
Further, the projection lamp module is installed on a lamp post of the street lamp module or in the projection lamp module.
Furthermore, the first switch controller module and the second switch controller module comprise switches, an auxiliary power circuit, a power grid synchronous circuit, a single chip microcomputer circuit, a control interface, a data interface, a sampling circuit, an input end and an output end;
the ground wire of the input end is connected with the ground wire of the output end, and the zero line of the input end is connected with the zero line of the output end; the auxiliary power circuit is connected to the live wire and the zero wire at the input end; the power grid synchronous circuit is connected to the live wire and the zero line at the input end; the single chip circuit is connected with the auxiliary power circuit, the power grid synchronous circuit, the switch, the control interface, the data interface and the sampling circuit; the auxiliary power supply circuit is connected with the power grid synchronous circuit; switch one end is connected with the live wire of input, and the switch other end is connected with sampling circuit, and sampling circuit current output end is connected with the live wire of the output of first switch controller module, second switch controller module.
Furthermore, the control unit module comprises a digital circuit, a communication circuit, a storage circuit, a first serial port, a second serial port, a third serial port, a power module, a first serial port level conversion chip and a second serial port level conversion chip;
the digital circuit is connected with the communication circuit, the storage circuit, the first serial port, the second serial port, the third serial port and the power supply module; the first serial port level conversion chip and the second serial port level conversion chip are respectively connected with the first serial port and the second serial port.
The utility model has the advantages that: according to the scheme, a special circuit is used for carrying out power grid synchronous timing to serve as a system clock. The accurate broadcast moment of projection system has been solved, perfect combination wisdom street lamp body system reaches fine projection effect.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a circuit diagram of the switch controller of the present invention;
FIG. 3 is a schematic block diagram of a control unit of the present invention;
fig. 4 illustrates a projection playing method according to the present invention;
fig. 5 is a projection playing time chart of the present invention;
FIG. 6 is a schematic view of the synchronous control strategy of the present invention;
FIG. 7 is a schematic diagram of the synchronous circuit of the present invention;
fig. 8 is a waveform diagram of the synchronization circuit of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description. It should be understood that the specific embodiments described herein are only for explaining the present invention, and are not used to limit the present invention, and the circuits of the present invention, which are not specifically designed, are all designed conventionally, such as power circuits.
As shown in the figure, the projection system based on the smart street lamp includes a street lamp module 101, a projection lamp module 102, a first power module 103, a second power module 104, a first switch controller module 105, a second switch controller module 107, a control unit module 109, and an input terminal module 108.
The first power supply module 103 is connected with the street lamp module 101 and supplies power to the street lamp module; the second power module 104 is connected with the projection lamp module 102 and supplies power to the projection lamp module; the first switch controller module 105 is connected to the first power module 103, the second switch controller module 107, the input module 108, and the control unit module 109. The control unit module 109 is connected with the second switch controller module 107, the input end module 108 and the projection lamp module 102; the second switch controller module 107 is connected to the second power module 104.
The street lamp module 101 partially realizes the function of basic road lighting. The projection lamp module 102 may be installed on a lamp post, or may be installed in a lamp of the street lamp module 101. The first power supply module 103 is connected with the street lamp module 101 and supplies power to the street lamp module; the second power module 104 is connected to the projection lamp module 101 and supplies power thereto. The first switch controller module 105 is connected to the first power module 103. The second switch controller module 107 is connected to the second power module 104. The second switch controller module 107 can also control the switch of the projection lamp module 102, and the first switch controller module 105 and the second switch controller module 107 can monitor the operation status. The control unit module 109 transmits the projection data to the projection lamp module 102, so as to realize separate design control and facilitate corresponding control.
The street light module 101 implements road lighting, which may be L ED lights, high intensity gas discharge lights, etc.
The first switch controller module 105 includes an input line, an output line, a control line, and a communication line. The input line (marked in the figure) is connected to the commercial power at the input end, the output line is connected to the input end of the power supply, and the control line is connected to the control line of the power supply. The communication line is connected to the control unit. The second switch controller module 107 has an input line, an output line, and a communication line, wherein the input line is connected to the mains input and the output line is connected to the input of the power supply. The communication line is connected to the control unit. A communication line is also provided between the control unit and the projection lamp.
The internal circuits of the first switch controller module 105 and the second switch controller module 107 each include a switch S1, an auxiliary power supply circuit 203, a grid synchronization circuit 204, a single chip microcomputer circuit 205, a control interface 207, a data interface 208, a sampling circuit 206, an input terminal 201, and an output terminal 202.
The ground of the input terminal 201 is connected to the ground of the output terminal 202, and the neutral of the input terminal 201 is connected to the neutral of the output terminal 202. The auxiliary power circuit 203 is connected to the live wire and the zero wire of the input end 201; the grid synchronization circuit 204 is connected to the live and neutral lines of the input terminal 201. The single chip microcomputer circuit 205 is connected with the auxiliary power supply circuit 203, the grid synchronization circuit 204, the switch S1, the control interface 207, the data interface 208 and the sampling circuit 206; the auxiliary power supply circuit 203 is connected with the grid synchronization circuit 204; one end of the switch S1 is connected to the live wire of the input terminal 201, the other end of the switch S1 is connected to the sampling circuit 206, and the current sampling output terminal of the sampling circuit 206 is connected to the live wire of the output terminal 202.
And a switch S1 for controlling the on/off of the connected corresponding street lamp module 101 or projection lamp module 102. It adopts switching devices such as a relay, an MOS tube and a thyristor, and is controlled by a singlechip circuit.
And the input end of the auxiliary power circuit 203 is connected to the L line and the N line (namely, the corresponding zero line and the corresponding live line) of the input end 201, and is used for supplying power to the single chip microcomputer circuit 205 and the grid synchronization circuit 204.
The single chip circuit 205 exchanges data with the control unit via a data interface 208 and controls power supply via a control interface 207. The signals of the sampling circuit 206 and the grid synchronization circuit 204 are processed.
The control interface 207 is connected to a control line of a corresponding power supply and outputs a PWM digital signal or a 0-10V analog signal.
The data interface 208 is used for serial communication with the control unit 109.
The sampling circuit 206 is used for measuring the power consumption information of the load connected to the output terminal 202, wherein the power consumption information includes voltage, current, power and other information, and sending the information to the single chip circuit 205.
The control unit module 109 includes a digital circuit 307, a communication circuit 309, a storage circuit 308, a first serial port 303, a second serial port 304, a third serial port 306, a power module 305, a first serial port level shift chip 301, and a second serial port level shift chip 302.
The digital circuit 307 is connected with the communication circuit 309, the storage circuit 308, the first serial port 303, the second serial port 304, the third serial port 306 and the power supply module 305; the first serial port level conversion chip 301 and the second serial port level conversion chip 302 are respectively connected with a first serial port 303 and a second serial port 304.
The digital circuit 307 may be a computer, a tablet, an embedded system, a single chip circuit, etc. And the method is used for processing, sending and receiving data.
The communication circuit 309 may be a 4G, 5G, fiber optic, etc. network interface circuit. For connecting to the internet.
The storage circuit 308 may be a hard disk, a flash memory, or the like for data storage.
The first serial port 303 is used for communicating with the first serial port level conversion chip 301.
The second serial port 304 is used for communicating with the second serial port level conversion chip 302.
The third serial port 306 is used for serial communication with the projection lamp module 102.
The first serial port level conversion chip 301 communicates with the second serial port level conversion chip 302 for level conversion. When the digital circuit 307 is a computer, it is used to connect the serial ports of the computer and the single chip circuit. RXD and TXD are connected to the data interfaces of the first switch controller module 105 and the second switch controller module 107, respectively.
The control method of the projection system based on the intelligent street lamp comprises the steps of respectively dividing played segments into n parts, then sending the n parts to the corresponding n street lamps, and setting a synchronous control strategy to play at corresponding time; the synchronization control strategy is specifically as follows:
101) determining a system clock: when the system is powered on, the power grid synchronous circuit starts to work, the singlechip clocks the pulse generated by the power grid synchronous circuit and sends the clock to the digital circuit, and the clock is used as the clock of the system;
102) determining the playing time: and after the system acquires the resource synchronous playing time, starting to play the resource according to the synchronous time.
For example: fragment 1 was segmented into 1-1, 2-1, 3-1,.., n-1 patch sources. The server then sends these film sources to the 1 st to nth intelligent street lamps. And stored in the memory of the control unit. Playback is started at time 1 and stopped at time 2.
The content played by each projection lamp module can be characters, pictures and animations. The playing content and the rules are issued by the server and stored in respective storage units. However, there is a problem in that if the time at which each lamp is played is not synchronized, the consistency of the played contents becomes problematic. If each projection lamp utilizes internet time as the time synchronization of the projection lamps, an error may exist due to the problem of network transmission delay, and the effect of synchronous playing cannot be well achieved. There is a precise synchronization method, namely, grid synchronization, because the time delay is the same for the same grid in the same area.
The power grid synchronization specific circuit comprises a rectification circuit, a resistor R61, a resistor R62, a comparator U61, a resistor R63, a resistor R64, a resistor R65 and a resistor R66; the resistor R61 and the resistor R62 form a voltage divider; the hysteresis comparison circuit comprises a comparator U61, a resistor R63, a resistor R64, a resistor R65 and a resistor R66.
The input end of the grid synchronization circuit is connected with the input ends L and N, the rectification circuit comprises four diodes, one end of the rectification circuit is connected with one end of a resistor R61, the other end of a resistor R61 is connected with one end of a resistor R62 and one end of a resistor R63, the other end of a resistor R62 is connected with the other end of the rectification circuit, the other end of a resistor R63 is connected with a comparator U61, the comparator U61 is connected with one end of a resistor R64 and one end of a resistor R65, the other end of a resistor R65 is connected with one end of the resistor R66 and one pin of the comparator U61, the pin outputs a synchronization signal Vsyn, and the single chip microcomputer circuit 205 counts according to the period of the synchronization signal Vsyn generated by the comparison circuit.
The power grid voltage is used as a sine wave, and a half-sine wave rectification signal is obtained after rectification and voltage division. The rectified signal passes through a comparator. The synchronization signal Vsyn is generated in the shape of a square wave. The comparator U61 may count on the rising or falling edge of the synchronization signal from the time the grid is powered on. The waveform diagram of the specific grid synchronous circuit operation is shown in fig. 8. The power grid voltage Vline is used as a sine wave, and a half-sine-wave rectification signal Vrec is obtained after rectification and voltage division. The rectified signal Vrec is used as a comparison with a high threshold voltage Vth _ h and a low threshold voltage Vth _ l, generating a synchronization signal Vsyn in the shape of a square wave.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.
Claims (4)
1. Projection system based on wisdom street lamp, its characterized in that: the projection lamp comprises a street lamp module, a projection lamp module, a first power supply module, a second power supply module, a first switch controller module, a second switch controller module, a control unit module and an input end module;
the first power supply module is connected with the street lamp module and supplies power to the street lamp module; the second power supply module is connected with the projection lamp module and supplies power to the projection lamp module; the first switch controller module is connected with the first power supply module, the second switch controller module, the input end module and the control unit module; the control unit module is connected with the second switch controller module, the input end module and the projection lamp module; the second switch controller module is connected with the second power supply module.
2. The intelligent street lamp-based projection system of claim 1, wherein: the projection lamp module is arranged on a lamp post of the street lamp module or in the projection lamp module.
3. The intelligent street lamp-based projection system of claim 1, wherein: the first switch controller module and the second switch controller module comprise switches, an auxiliary power circuit, a power grid synchronous circuit, a single chip microcomputer circuit, a control interface, a data interface, a sampling circuit, an input end and an output end;
the ground wire of the input end is connected with the ground wire of the output end, and the zero line of the input end is connected with the zero line of the output end; the auxiliary power circuit is connected to the live wire and the zero wire at the input end; the power grid synchronous circuit is connected to the live wire and the zero line at the input end; the single chip circuit is connected with the auxiliary power circuit, the power grid synchronous circuit, the switch, the control interface, the data interface and the sampling circuit; the auxiliary power supply circuit is connected with the power grid synchronous circuit; switch one end is connected with the live wire of input, and the switch other end is connected with sampling circuit, and sampling circuit current output end is connected with the live wire of the output of first switch controller module, second switch controller module.
4. The intelligent street lamp-based projection system of claim 1, wherein: the control unit module comprises a digital circuit, a communication circuit, a storage circuit, a first serial port, a second serial port, a third serial port, a power supply module, a first serial port level conversion chip and a second serial port level conversion chip;
the digital circuit is connected with the communication circuit, the storage circuit, the first serial port, the second serial port, the third serial port and the power supply module; the first serial port level conversion chip and the second serial port level conversion chip are respectively connected with the first serial port and the second serial port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920910879.1U CN211152287U (en) | 2019-06-17 | 2019-06-17 | Projection system based on wisdom street lamp |
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| CN201920910879.1U CN211152287U (en) | 2019-06-17 | 2019-06-17 | Projection system based on wisdom street lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267418A (en) * | 2019-06-17 | 2019-09-20 | 浙江大邦科技有限公司 | Optical projection system and control method based on wisdom street lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110267418A (en) * | 2019-06-17 | 2019-09-20 | 浙江大邦科技有限公司 | Optical projection system and control method based on wisdom street lamp |
| CN110267418B (en) * | 2019-06-17 | 2023-12-26 | 浙江大邦科技有限公司 | Projection system based on intelligent street lamp and control method |
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