CN112087843B - Frequency-adjustable cannon signal board - Google Patents
Frequency-adjustable cannon signal board Download PDFInfo
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- CN112087843B CN112087843B CN201910510534.1A CN201910510534A CN112087843B CN 112087843 B CN112087843 B CN 112087843B CN 201910510534 A CN201910510534 A CN 201910510534A CN 112087843 B CN112087843 B CN 112087843B
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Abstract
A cannon signal board capable of modulating frequency relates to the field of stage lamp consoles, and comprises a power supply module, a voltage stabilizing module, an isolation protection module, a control module and a frequency modulation module, wherein the power supply module is electrically connected with the voltage stabilizing module, the isolation protection module, the control module and the frequency modulation module in sequence; the control module is internally provided with a plurality of frequency modulation interfaces, and the frequency modulation module is connected with the control module through the frequency modulation interfaces. According to the invention, the frequency modulation interface is arranged in the control module and is in butt joint with the frequency modulation module, and the frequency modulation module is used for carrying out frequency modulation on data transmission, so that the problem of compatibility of the data transmission is solved, and the performance of a product is enhanced.
Description
Technical Field
The invention relates to the field of stage lamp consoles, in particular to a cannon signal board capable of modulating frequency.
Background
There are different brands of light consoles in the stage lighting industry that all have different "packet frequencies" for outputting DMX512 signals, basically in the range of 20-44 packets/second. The current stage lamp has faster electronic software and hardware updating, and has been transited from 51 series single-chip microcomputer (such as STC brand STC12C5410AD 8-bit chip, microchip brand PIC18F242 8-bit chip) to ARM core single-chip microcomputer (such as STM32 series 32-bit chip).
The existing cannon signal board does not have a 32-bit computer chip of STM32 series, but simply converts the DMX512 signal into a lamp. When the lamps of the 8-bit computer chips meet a plurality of high-grade light control tables, the incompatibility can occur, and certain functions can not be used.
Therefore, a new type of tunable cannon signal board is needed that can not only mass produce stage lamps without affecting the 8-bit chip, but also be compatible with the light control console that is continuously updated.
Disclosure of Invention
In order to achieve the above purpose, the invention adopts the following technical scheme: a tunable cannon signal board, characterized by: the power supply module is electrically connected with the voltage stabilizing module, the isolation protection module, the control module and the frequency modulation module in sequence; the control module is internally provided with a plurality of frequency modulation interfaces, and the frequency modulation module is connected with the control module through the frequency modulation interfaces;
furthermore, the frequency modulation module is a dial switch, the dial switch is provided with a plurality of dials, the plurality of dials represent different frequencies, and the number of the dials is consistent with the number of the frequency modulation interfaces;
further, the power module comprises a power socket and a TTL level circuit, wherein the power socket is connected with the TTL level circuit, and the TTL level circuit is connected with the control module;
further, the intelligent power supply further comprises an RS485 conversion module, wherein the RS485 conversion module is connected with the power supply socket and the control module;
further, the control module is provided with an RST485TXD interface, and is connected with a TTL level circuit or an RS485 conversion module through the RST485TXD interface;
further, the isolation protection module comprises an anti-leakage circuit, a high-voltage protection circuit and a DMX512 signal conversion circuit, wherein the anti-leakage circuit is electrically connected with the high-voltage protection circuit and the DMX512 signal conversion circuit;
further, the system also comprises a copy module, wherein the copy module is connected with the control module;
further, the intelligent control system further comprises a feedback module, wherein the feedback module is connected with the control module.
The beneficial effects of the invention are as follows: 1. according to the invention, the frequency modulation interface is arranged in the control module and is in butt joint with the frequency modulation module, and the frequency modulation module is used for carrying out frequency modulation on data transmission, so that the problem of compatibility of the data transmission is solved, and the performance of a product is enhanced.
2. When high voltage is connected in series, the control module is protected by the isolation protection module, so that the control module is prevented from being burnt.
3. By setting TTL level circuit and RS485 conversion module, the cannon signal board has two selection functions for changing "data packet frequency".
Drawings
The invention is further illustrated by the accompanying drawings, which are not to be construed as limiting the invention in any way.
FIG. 1 is a schematic flow chart according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a control module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a FM module according to an embodiment of the present invention
FIG. 4 is a schematic diagram of a power module according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a voltage stabilizing module according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an isolation protection module according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an RS485 conversion module according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a copy module according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a feedback module according to an embodiment of the invention;
Detailed Description
The invention will be further described with reference to the accompanying drawings, in which the directions of fig. 1 are used.
As shown in fig. 1, the tunable cannon signal board provided by an embodiment of the present invention includes a power module, an RS485 conversion module, a voltage stabilizing module, an isolation protection module, a control module, a frequency modulation module, a feedback module, and a copy module, where the power module is electrically connected with the RS485 conversion module, the voltage stabilizing module, the isolation protection module, the control module, the frequency modulation module, the feedback module, and the copy module; the voltage stabilizing module is electrically connected with the isolation protection module, the control module, the frequency modulation module, the feedback module and the copying module in sequence, and the RS485 conversion module is electrically connected with the control module.
The control module comprises a control chip and peripheral circuits of the control chip, as shown in fig. 2, the control chip is an ARM Cortex-M core STM32 series STM32F106C8T6B, and a plurality of frequency modulation interfaces are arranged on the control chip, in the embodiment, three frequency modulation interfaces are respectively arranged, namely DPIN1, DPIN2 and DPIN3; the control chip is provided with a feedback signal interface, and the feedback signal interface is an LED1 interface and an LED2 interface; the control chip is provided with a signal conversion interface, and the signal conversion interface is an RS485TXD interface; a copy interface is arranged on the control chip, and the copy interface is an NRST interface; the control chip is also provided with a plurality of interfaces for other purposes, which belong to the prior art; therefore, the description is omitted.
The frequency modulation module is set as a dial switch, as shown in fig. 3, a plurality of dial codes are arranged on the dial switch, the number of the dial codes is consistent with the number of the frequency modulation interfaces, each dial code frequency is different, and different data packet frequency output is realized by setting different dial codes; in this embodiment, preferably, three dialing codes are set, namely, dialing code 1, dialing code 2 and dialing code 3, where dialing code 1 is correspondingly connected with frequency modulation interface DPIN1, dialing code 2 is correspondingly connected with frequency modulation interface DPIN2, and dialing code 3 is correspondingly connected with frequency modulation interface DPIN3; the "data packet frequency" of the dial 1 is 25 data packets/second, the "data packet frequency" of the dial 2 is 30 data packets/second, and the "data packet frequency" of the dial 3 is 40 data packets/second. Through setting up a plurality of dial switches, can export a plurality of data packages simultaneously to strengthen its compatibility, satisfy the upgrading of product.
The power supply module comprises a power socket and a TTL level circuit, as shown in fig. 4, the power socket is provided with four pins, the four pins are a pin1, a pin2, a pin3 and a pin 4 respectively, the pin1 outputs 5V voltage, the TTL level circuit is connected with the power socket through the pin2, and the pin3 and the pin 4 are connected with a ground wire. And the other end of the TTL level circuit is connected with the control chip through an RS485TXD interface.
As shown in FIG. 5, the voltage stabilizing circuit comprises a U23 SPX1117-3.3 chip and filter circuits arranged at two ends of the U23 SPX1117-3.3 chip, wherein the filter circuits are formed by connecting decoupling capacitors and voltage stabilizing capacitors in parallel. The filter circuit is divided into a first filter circuit and a second filter circuit, and the power input from the pin1 of the power socket is firstly subjected to primary filtering decoupling through the first filter circuit, then is converted through U23 SPX1117-3.3, and is then subjected to secondary filtering decoupling through the second filter circuit and then is output to the isolation protection module.
As shown in fig. 6, the isolation protection module includes an anti-leakage circuit, a high-voltage protection circuit, a DMX512 signal conversion circuit, a male cannon socket J1, a female cannon socket J2, and a DMX512 signal socket J3, wherein the male cannon socket J1 is used for inputting DMX512 signals, the female cannon socket J2 is used for outputting DMX512 signals, and the DMX512 signal socket J3 is used for directly outputting the input DMX512 signals. The anti-leakage circuit, the high-voltage protection circuit and the DMX512 signal conversion circuit are electrically connected with the male cannon seat J1, the female cannon seat J2 and the DMX512 signal seat, and the anti-leakage circuit is electrically connected with the high-voltage protection circuit and the DMX512 signal conversion circuit.
The anti-leakage circuit comprises a resistor R4, a capacitor C2, a diode D1 and a resistor R1, wherein the capacitor C2 is connected with the diode D1 in parallel and then is connected with a pin1 of a male cannon seat J1, a female cannon seat J2 and a DMX512 signal seat J3 through the resistor R4, the capacitor C2 and the diode D1, and when high voltage is led into a signal wire, the high voltage of the ground wire is led into the ground through the resistor R4, the capacitor C2 and the diode D1, so that the leakage of the ground wire is prevented.
The high-voltage protection circuit comprises a thermistor R2, a thermistor R3 and a safety group D2, wherein the safety group D2 is provided with 8 pins, namely a pin1, a pin2, a pin3, a pin 4, a pin 5, a pin 6, a pin 7 and a pin 8, the pin2, the pin3, the pin 6 and the pin 7 are grounded, the pin1 is connected with a pin2 of a Gonggong seat J1, a Nongson seat J2 and a DMX512 signal seat J3 through the thermistor R2, the pin 4 is connected with a pin3 of the Gonggong seat J1, the Nongn seat J2 and the DMX512 signal seat J3 through the thermistor R3, the pin 4 corresponds to the pin 8, the pin 8 is connected with a DMX512 signal conversion circuit, the pin1 corresponds to the pin 5, and when high voltage is met, the high-voltage protection circuit isolates and protects a main control module, so that the module is prevented from being burnt.
The DMX512 signal conversion circuit includes IC1 and 585 standard circuits, where the IC1 and 585 standard circuits are electrically connected, and the IC1 and 585 standard circuits are all existing circuits, so that the description is omitted.
As shown in fig. 7, the RS485 conversion module includes a socket J101, a current limiting resistor, a voltage limiting circuit, and a chip U25 SN75176, where the socket J101 is sequentially connected in series with the current limiting resistor, the voltage limiting circuit, and the chip U25 SN75176, the socket J101 is used to output an RS485 signal, the current limiting resistor is used to limit current, prevent the current from burning out the circuit due to excessive current, the voltage limiting circuit is used to limit voltage to avoid burning out the circuit, and the chip U25 SN75176 is provided with an RS485 signal interface for connecting with a signal conversion interface of the main control chip; the signal conversion interface of the main control chip can be connected with the RS485 conversion module, and also can be connected with a TTL level circuit, namely, the Cannon signal board has two selection functions for changing the frequency of data packets, when the lamp needs TTL level to control the whole machine hardware, the J4 socket output signal can be selected, and when the lamp needs RS485 signal to control the whole machine hardware, the J101 socket output signal can be selected. It should be noted that when the RS485 signal is selected to control the hardware of the whole machine, the 2 nd pin of the J4 socket cannot be connected, namely, disconnected with the TTL level, and the RS485 conversion module needs to be connected with the J4 socket to provide 5V power supply voltage for the J4 socket, and the 2 nd pin outputs the TTL level and the RS485 signal to generate conflict, so that the two signals can be used by selecting one of them according to actual needs.
As shown in fig. 8, the copy module is connected to the main control chip through the NRST interface, and the copy module is in the prior art, which is not described herein.
As shown in fig. 8, the feedback module is provided with two LED circuits, and the two LED circuits are connected with the main control chip through the LED1 interface and the LED2 interface, when the LED circuits are on, it indicates that the main control chip has no fault, otherwise, it indicates that the main control chip has fault. In this embodiment, there are preferably two circuits, and when one of the circuits fails, one circuit feeds back, so as to avoid erroneous judgment.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (4)
1. A tunable cannon signal board, characterized by: the power supply module is electrically connected with the voltage stabilizing module, the isolation protection module, the control module and the frequency modulation module in sequence; the control module is internally provided with a plurality of frequency modulation interfaces, and the frequency modulation module is connected with the control module through the frequency modulation interfaces;
the frequency modulation module is a dial switch, the dial switch is provided with a plurality of dials, the plurality of dials represent different data packet frequencies, and different data packet frequency output of the DMX512 signal is realized by setting different dials; the number of the dialing codes is consistent with the number of the frequency modulation interfaces;
the power supply module comprises a power socket and a TTL level circuit, wherein the power socket is connected with the TTL level circuit, and the TTL level circuit is connected with the control module;
the power socket also comprises an RS485 conversion module, wherein the RS485 conversion module is connected with the power socket and the control module; the control module is provided with an RST485TXD interface, and is connected with a TTL level circuit or an RS485 conversion module through the RST485TXD interface.
2. The fm cannon signal board of claim 1, wherein: the isolation protection module comprises an anti-leakage circuit, a high-voltage protection circuit and a DMX512 signal conversion circuit, wherein the anti-leakage circuit is electrically connected with the high-voltage protection circuit and the DMX512 signal conversion circuit.
3. The fm cannon signal board of claim 1, wherein: the system also comprises a copying module, wherein the copying module is connected with the control module.
4. The fm cannon signal board of claim 1, wherein: the system also comprises a feedback module, wherein the feedback module is connected with the control module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510534.1A CN112087843B (en) | 2019-06-13 | 2019-06-13 | Frequency-adjustable cannon signal board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910510534.1A CN112087843B (en) | 2019-06-13 | 2019-06-13 | Frequency-adjustable cannon signal board |
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| CN112087843A CN112087843A (en) | 2020-12-15 |
| CN112087843B true CN112087843B (en) | 2023-05-23 |
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