CN111405732B - Lamp bidirectional signal amplification method and control system - Google Patents
Lamp bidirectional signal amplification method and control system Download PDFInfo
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Abstract
The invention discloses a lamp bidirectional signal amplification method and a control system, wherein the lamp bidirectional signal amplification method comprises the following steps that a control console sends a control signal; the signal amplifier receives the control signal and judges the type of the control signal; the signal amplifier controls the working state of the signal amplifier according to the type of the control signal; when the control signal type is a one-way communication control signal, the control signal is shaped and amplified and then transmitted to the lamp to finish transmission; when the control signal type is a bidirectional communication control signal, shaping, amplifying and transmitting the control signal to the lamp, and waiting for the lamp to return a feedback signal; the signal amplifier receives a feedback signal of the lamp; and the feedback signal is shaped and amplified and then transmitted back to the console. The lamp bidirectional signal amplification method can realize the shaping amplification and bidirectional communication control of the communication signals of the lamp, can know the state information of the lamp, and is convenient for the unified management of the lamp.
Description
Technical Field
The invention belongs to the technical field of lamp control, and particularly relates to a lamp bidirectional signal amplification method and a control system.
Background
The DMX protocol is widely applied to control of light, and can realize one-way communication control of the light. Two-way communication protocols, such as the rdm (remote Device management) protocol, are an added version of the DMX protocol that allow for two-way communication control of lights.
In the conventional DMX amplifier, the signal amplification part is designed in a pure hardware manner, and cannot judge whether the communication signal type is a unidirectional communication signal or a bidirectional communication signal, and only can transmit the signal in a single direction, so that only a unidirectional transmission protocol such as a DMX signal can be satisfied, and signals requiring bidirectional communication (such as other bidirectional communication control signals such as RDM signals) cannot be transmitted.
Disclosure of Invention
The invention aims to provide a lamp bidirectional signal amplification method and a control system, the lamp bidirectional signal amplification method can realize the shaping amplification and bidirectional communication control of communication signals of lamps, can know the state information of the lamps, and is convenient for the unified management of the lamps.
The technical scheme is as follows:
the lamp bidirectional signal amplification method comprises the following steps:
the console sends a control signal to the signal amplifier;
the signal amplifier receives the control signal sent by the console, analyzes the control signal and judges the type of the control signal;
the signal amplifier executes a corresponding working instruction according to the judgment result of the control signal type and controls the working state of the signal amplifier according to the working instruction;
when the control signal type is a one-way communication control signal, the signal amplifier executes a first working instruction, shapes and amplifies the control signal, and transmits the control signal to the lamp to finish transmission;
when the control signal type is a bidirectional communication control signal, the signal amplifier executes a second working instruction, shapes and amplifies the control signal, transmits the control signal to the lamp, and waits for the lamp to return a feedback signal;
the lamp transmits a feedback signal to the signal amplifier, and the signal amplifier receives the feedback signal of the lamp;
the signal amplifier shapes and amplifies the feedback signal and transmits the feedback signal back to the console.
By the method, the signal amplifier receives the control signal sent by the console, can reshape, amplify and output the control signal, can analyze and judge the control signal to be a one-way communication control signal or a two-way communication control signal, can control the working state of the signal amplifier according to the type of the control signal, can realize the transmission of the one-way communication control signal and the transmission of the two-way communication control signal, can know the state information of the lamp by receiving the feedback information of the lamp through the two-way communication transmission, and is convenient for the unified management of the lamp.
In one embodiment, the signal amplifier operating step comprises,
the first signal unit receives a control signal sent by the console and transmits the control signal to the control unit;
the control unit receives the control signal, analyzes the control signal and judges the type of the control signal;
the control unit sends a corresponding working instruction to the second signal unit according to the judgment result of the type of the control signal, and controls the working state of the second signal unit;
when the control signal type is a one-way communication control signal, the control unit sends a first working instruction to the second signal unit, the second signal unit receives the first working instruction, and the control signal is shaped, amplified and transmitted to the lamp to complete transmission;
when the control signal type is a bidirectional communication control signal, the control unit sends a second working instruction to the second signal unit, the second signal unit receives the second working instruction, shapes and amplifies the control signal and transmits the control signal to the lamp, and then the lamp waits for a feedback signal to return;
the lamp transmits a feedback signal to the second signal unit, and the second signal unit receives the feedback signal transmitted by the lamp and transmits the feedback signal back to the first signal unit;
the first signal unit receives the feedback signal, shapes and amplifies the feedback signal, and then transmits the feedback signal back to the console to finish transmission.
The control unit in the signal amplifier analyzes the control signal and judges the signal type to control the first signal unit and the second signal unit to work cooperatively, so that the lamp is controlled in one-way communication and two-way communication.
In one of the embodiments, the first and second electrodes are,
the control unit sends a corresponding working instruction to the second signal unit according to the judgment result of the type of the control signal, and controls the working state of the second signal unit, including,
if the control signal is a one-way communication control signal, the control unit sends a first working instruction to the second signal unit and controls the working state of the second signal unit to be an output state;
if the control signal is a bidirectional communication control signal, the control unit sends a second working instruction to the second signal unit and controls the second signal unit to be switched from the output state to the receiving state.
And judging the type of the control signal through the control signal, and sending a working instruction to the second signal unit aiming at the type of the signal so as to control the working state of the second signal unit, thereby realizing the transmission of a unidirectional control signal and the transmission of a bidirectional control signal.
In one embodiment, the method further comprises the following steps,
the control unit rapidly receives and caches the signal data of the first signal unit through serial port interruption, and analyzes and judges whether the second signal unit is in an idle state;
when the second signal unit is in an idle state, shaping, amplifying and outputting the signal data through the second signal unit; or,
the control unit rapidly receives and caches the signal data of the second signal unit through serial port interruption, and analyzes and judges whether the first signal unit is in an idle state or not;
and when the first signal unit is in an idle state, shaping, amplifying and outputting the signal data through the first signal unit.
The control unit receives signal data of the first signal unit or the second signal unit through serial port interruption, analyzes and judges whether the other signal unit is in an idle state, and if so, shapes, amplifies and outputs the signal data through the other signal unit to realize bidirectional signal amplification.
In one embodiment, the method further comprises the following steps,
the control unit controls the first signal unit or the second signal unit to be in a signal receiving state;
after the control unit receives the control signal transmitted by the first signal unit, the serial port connected with the first signal unit by the control unit generates serial port interruption; or,
after the control unit receives the feedback signal transmitted by the second signal unit, the serial port connected with the second signal unit by the control unit generates serial port interruption;
the control unit caches and receives signal data transmitted by the first signal unit/the second signal unit and judges whether the other signal unit is in an idle state, wherein the first signal unit/the second signal unit is in a busy state when processing data received by a serial port interrupt, and is in the idle state when no data is processed;
when the other signal unit is in an idle state, the control unit switches the receiving state of the other signal unit into an output state, and shapes, amplifies and outputs the buffered signal data;
and when the signal data are completely output, the control unit switches the signal unit from the output state to the receiving state.
The control unit processes the received signal data, judges whether the two signal units are in an idle state or not, flexibly switches the output and receiving states of the two signal units, and finally shapes, amplifies and transmits the received signal data back to the console, thereby realizing the bidirectional transparent transmission of the control signal.
A lamp control system, comprising,
the system comprises a console, at least one signal amplifier and at least one lamp, wherein one end of the signal amplifier is connected with the console, and the other end of the signal amplifier is connected with the lamp;
the control console is used for sending control signals to the lamp and receiving feedback signals of the lamp to control the lamp;
the signal amplifier is used for receiving the control signal and judging the type of the control signal; the signal amplifier is used for controlling the working state of the signal amplifier according to the type of the control signal, wherein when the type of the control signal is a one-way communication control signal, the signal amplifier shapes and amplifies the control signal and then transmits the control signal to the lamp to finish transmission; when the control signal type is a bidirectional communication control signal, shaping, amplifying and transmitting the control signal to the lamp, and waiting for receiving a feedback signal returned by the lamp; used for shaping and amplifying the feedback signal and then transmitting the feedback signal back to the console.
The lamp control system can effectively realize the shaping and amplification of the control signal, judge the type of the control signal through the signal amplifier and control the working state of the lamp according to the type of the control signal, can also effectively realize the one-way communication control and the two-way communication control of the lamp, transmit and receive the feedback information of the lamp through the two-way communication, can know the state information of the lamp, and is convenient for the unified management of the lamp.
In one of the embodiments, the first and second electrodes are,
the signal amplifier comprises a first signal unit, a control unit and a second signal unit, the first signal unit is connected with the console, the second signal unit is connected with the lamp, one end of the control unit is connected with the first signal unit, and the other end of the control unit is connected with the second signal unit;
the first signal unit is used for receiving the control signal sent by the console and transmitting the control signal to the control unit; the lamp feedback signal receiving unit is used for receiving the lamp feedback signal transmitted by the second signal unit, shaping and amplifying the lamp feedback signal and transmitting the lamp feedback signal back to the console;
the second signal unit is used for receiving the control signal transmitted by the control unit, shaping and amplifying the control signal and outputting the control signal to the lamp; the first signal unit is used for receiving a feedback signal transmitted by the lamp and transmitting the feedback signal back to the first signal unit;
the control unit is used as a control core of the signal amplifier and used for receiving/transmitting a control signal or signal data of a feedback signal of the lamp; used for judging the type of the control signal; the first signal unit or the second signal unit is used for judging whether the first signal unit or the second signal unit is in an idle state; the control circuit is used for controlling the working states of the first signal unit and the second signal unit.
The control unit is used for judging the signal type and judging whether the signal unit is in an idle state or not, and controlling the first signal unit and the second signal unit to work in a matched mode, so that the one-way communication control of the lamp is realized, and the two-way communication control can be realized.
In one of the embodiments, the first and second electrodes are,
a first signal isolation amplification module and a first power isolation module are arranged in the first signal unit, and a second signal isolation amplification module and a second power isolation module are arranged in the second signal unit;
the first signal isolation amplification module is used for shaping and amplifying a feedback signal of the lamp; the serial port is used for isolating the first signal unit from the connection serial port of the control unit;
the second signal isolation amplifying module is used for shaping and amplifying the control signal; the serial port is used for isolating the second signal unit from the connection serial port of the control unit;
the first power isolation module is used for isolating the ground and the voltage of the power supply of the first signal unit and the control unit;
and the second power isolation module is used for positively isolating the power supply ground and the voltage of the second signal unit and the control unit.
The first signal isolation and amplification module and the second signal isolation and amplification module are arranged, so that the signal anti-interference capability of the first signal unit and the second signal unit can be improved, the signal interference is reduced, and the normal transmission of signals is facilitated; through being equipped with first power isolation module and second power isolation module, be favorable to protecting the control unit, avoid the control unit to damage to be favorable to protecting signal amplifier, prolong its working life, be favorable to protecting lamps and lanterns simultaneously.
In one embodiment, a first ESD transient suppression diode and a second ESD transient suppression diode are disposed in each of the first signal unit and the second signal unit. The arrangement is favorable for protecting the bus connected with the signal amplifier from repeated ESD electrostatic interference, thereby being favorable for the normal operation of the lamp control system.
The lamp bidirectional signal amplification method provided by the invention can carry out shaping, amplification and output on the control signal, can analyze the control signal and judge whether the control signal is a unidirectional communication control signal or a bidirectional communication control signal, can control the working state of the signal amplifier according to the type of the control signal, namely, the unidirectional communication control signal transmission can be realized, the bidirectional communication control signal transmission can also be realized, feedback information of the lamp is received through the bidirectional communication transmission, the state information of the lamp can be known, and the lamp can be conveniently and uniformly managed; in addition, the bidirectional transmission is bidirectional transparent transmission, any signal (including and not limited to RDM signal) needing bidirectional transmission can be met, and the application range of the lamp control system can be widened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles and effects of the invention.
Unless otherwise specified or defined, the same reference numerals in different figures refer to the same or similar features, and different reference numerals may be used for the same or similar features.
FIG. 1 is a flow chart of a lamp bidirectional signal amplification method according to an embodiment of the present invention;
FIG. 2 is a flow chart of the operation of a control unit in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of the connection of a first signal unit, a control unit and a second signal unit according to an embodiment of the present invention;
FIG. 4 is a schematic connection diagram of a lamp control system according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of the first signal unit, the control unit and the second signal unit in the embodiment of the present invention.
Description of reference numerals:
10. a control unit; 20. a first signal unit; 21. a first signal isolation amplification module; 22. a first power isolation module; 30. a second signal unit; 31. a second signal isolation amplifying module; 32. and a second power isolation module.
Detailed Description
In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.
Unless specifically stated or otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the case of combining the technical solutions of the present invention in a realistic scenario, all technical and scientific terms used herein may also have meanings corresponding to the purpose of achieving the technical solutions of the present invention.
As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.
It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.
As used herein, unless otherwise specified or defined, the terms "comprises," "comprising," and "comprising" are used interchangeably to refer to the term "comprising," and are used interchangeably herein.
It is needless to say that technical contents or technical features which are contrary to the object of the present invention or clearly contradicted by the object of the present invention should be excluded.
As shown in fig. 1, the lamp bidirectional signal amplifying method includes the following steps:
the console sends a control signal to the signal amplifier;
the signal amplifier receives the control signal sent by the console, analyzes the control signal and judges the type of the control signal;
the signal amplifier executes a corresponding working instruction according to the judgment result of the control signal type and controls the working state of the signal amplifier according to the working instruction;
when the control signal type is a one-way communication control signal, the signal amplifier executes a first working instruction, shapes and amplifies the control signal, and transmits the control signal to the lamp to finish transmission;
when the control signal type is a bidirectional communication control signal, the signal amplifier executes a second working instruction, shapes and amplifies the control signal, transmits the control signal to the lamp, and waits for the lamp to return a feedback signal;
the lamp transmits a feedback signal to the signal amplifier, and the signal amplifier receives the feedback signal of the lamp;
the signal amplifier shapes and amplifies the feedback signal and transmits the feedback signal back to the console.
According to the lamp bidirectional signal method provided by the invention, the signal amplifier receives the control signal sent by the console, can carry out shaping amplification output on the control signal, can analyze the control signal and judge whether the control signal is a unidirectional communication control signal or a bidirectional communication control signal, and can control the working state of the signal amplifier according to the type of the control signal, so that the unidirectional communication control signal transmission can be realized, the bidirectional communication control signal transmission can also be realized, the feedback information of the lamp is received through the bidirectional communication transmission, the state information of the lamp can be known, and the lamp can be conveniently and uniformly managed.
Wherein, the working steps of the signal amplifier specifically comprise,
the first signal unit 20 receives the control signal sent by the console and transmits the control signal to the control unit 10;
the control unit 10 receives the control signal, analyzes the control signal and judges the type of the control signal;
the control unit 10 sends a corresponding working instruction to the second signal unit 30 according to the judgment result of the type of the control signal, and controls the working state of the second signal unit 30; wherein,
when the control signal type is a one-way communication control signal, the control unit 10 sends a first working instruction to the second signal unit 30, controls the working state of the second signal unit 30 to be an output state, shapes and amplifies the control signal, and transmits the control signal to the lamp to finish transmission;
when the control signal type is a bidirectional communication control signal, the control unit 10 sends a second working instruction to the second signal unit 30, controls the second signal unit 30 to be switched from the output state to the receiving state, shapes and amplifies the control signal, transmits the control signal to the lamp, and waits for the lamp to return a feedback signal;
the lamp transmits a feedback signal to the second signal unit 30, and the second signal unit 30 receives the feedback signal transmitted by the lamp and transmits the feedback signal back to the first signal unit 20;
the first signal unit 20 receives the feedback signal, shapes and amplifies the feedback signal, and transmits the feedback signal back to the console to complete transmission.
The control unit 10 is a control unit of an MCU single chip disposed in the signal amplifier, and the control unit 10 in the signal amplifier analyzes the control signal and determines the signal type to control the first signal unit 20 and the second signal unit 30 to work cooperatively, so as to realize both unidirectional communication control and bidirectional communication control of the lamp.
As shown in fig. 2, the specific working steps of the control unit further include,
the control unit controls the first signal unit or the second signal unit to be in a signal receiving state;
after the control unit receives the control signal transmitted by the first signal unit, the serial port connected with the first signal unit by the control unit generates serial port interruption; or,
after the control unit receives the feedback signal transmitted by the second signal unit, the serial port connected with the first signal unit of the control unit generates serial port interruption;
the control unit caches and receives signal data transmitted by the first signal unit/the second signal unit and judges whether the other signal unit is in an idle state, wherein the first signal unit/the second signal unit is in a busy state when processing data received by a serial port interrupt, and is in the idle state when no data is processed;
when the other signal unit is in an idle state, the control unit switches the receiving state of the other signal unit into an output state, and shapes, amplifies and outputs the buffered signal data;
when all signal data are output, the control unit switches the signal unit from the output state to the receiving state; the above steps are repeated.
It should be noted that, the control unit determines the signal type and determines whether the signal unit is in an idle state, and does not conflict with each other, and when the control unit completes the determination of the signal type and the determination of whether the signal unit is in the idle state, the control unit sends a corresponding working instruction to switch the working state (i.e., the output/reception state) of the signal unit; in addition, the lamp bidirectional signal amplification method provided by the invention is not limited to RDM signals, but also can be a protocol requiring bidirectional communication for other third parties, when the transmission of control signals is realized, no matter the control signals are DMX signals of unidirectional communication, RDM signals of bidirectional communication or other internal control protocol signals such as software upgrading signals, and the like, the MCU singlechip control unit can rapidly process received signal data, judge whether the two signal units are in idle states, flexibly switch the output or receiving working states of the two signal units, and finally reshape, amplify and transmit the received signal data back to the control bus, thereby realizing the bidirectional transparent transmission of the control signals.
A lamp control system, comprising,
the system comprises a console, at least one signal amplifier and at least one lamp, wherein one end of the signal amplifier is connected with the console, and the other end of the signal amplifier is connected with the lamp;
the control console is used for sending control signals to the lamp and receiving feedback signals of the lamp to control the lamp;
the signal amplifier is used for receiving the control signal and judging the type of the control signal; the signal amplifier is used for controlling the working state of the signal amplifier according to the type of the control signal, wherein when the type of the control signal is a one-way communication control signal, the signal amplifier shapes and amplifies the control signal and then transmits the control signal to the lamp to finish transmission; when the control signal type is a bidirectional communication control signal, shaping, amplifying and transmitting the control signal to the lamp, and waiting for receiving a feedback signal returned by the lamp; used for shaping and amplifying the feedback signal and then transmitting the feedback signal back to the console.
The lamp control system can effectively realize the shaping and amplification of the control signal, judge the type of the control signal through the signal amplifier and control the working state of the lamp according to the type of the control signal, can also effectively realize the one-way communication control and the two-way communication control of the lamp, transmit and receive the feedback information of the lamp through the two-way communication, can know the state information of the lamp, and is convenient for the unified management of the lamp.
As shown in fig. 3, the signal amplifier includes a first signal unit 20, a control unit 10 and a second signal unit 30, the first signal unit 20 is connected to a console, the second signal unit 30 is connected to a lamp, one end of the control unit 10 is connected to the first signal unit 20, and the other end is connected to the second signal unit 30;
a first signal unit 20, configured to receive a control signal sent by the console, and transmit the control signal to the control unit 10; the second signal unit 30 is used for receiving the feedback signal of the lamp transmitted by the second signal unit, shaping and amplifying the feedback signal, and transmitting the feedback signal back to the console;
the second signal unit 30 is configured to receive the control signal transmitted by the control unit 10, shape and amplify the control signal, and output the control signal to the lamp; the feedback signal receiving unit is used for receiving the feedback signal transmitted by the lamp and transmitting the feedback signal back to the first signal unit 20;
a control unit 10, serving as a control core of the signal amplifier, for receiving/transmitting a control signal or a feedback signal of the lamp; used for judging the type of the control signal; for determining whether the first signal unit 20 or the second signal unit 30 is in an idle state; for controlling the operating states of the first signal unit 20 and the second signal unit 30.
The control unit 10 judges the signal type and whether the first signal unit 20 or the second signal unit 30 is in an idle state, and controls the first signal unit 20 and the second signal unit 30 to work cooperatively, so that not only is one-way communication control of the lamp realized, but also two-way communication control can be realized.
As shown in fig. 4, in one embodiment, the console is connected to the first signal unit 20 of the first signal amplifier, the second signal unit 30 is connected to the signal line of the lamp, the signal lines of the lamps 1 to 32 are connected in a handshaking manner, the signal line of the lamp 32 is connected to the first signal unit 20 of the second signal amplifier, the second signal unit 30 is connected to the signal line of the lamp 33, and so on, every 32 lamps are connected to one signal amplifier, and the last lamp is connected to a signal adding loop. The transmission path from the control signal sent by the console to the last lamp is a first link, the transmission path from the lamp to the console is a second link, and the first link is only needed for unidirectional signal transmission (DMX signal transmission); during bidirectional signal transmission (other control signals such as RDM signals), the control signal is transmitted through the first link, after the signal amplifier receives the control signal, the second signal unit 30 is switched to the output state to transmit the control signal to the lamp, then the second signal unit 30 is in the receiving state, the lamp waits for a feedback signal (i.e. query instruction information) returned by the lamp to be transmitted, after the feedback signal returned by the lamp is received, the first signal unit 20 is switched to the output state, the feedback signal is sent back to the console through the first signal unit 20, after the transmission is completed, the first signal unit is in the receiving state, and the next round of signal transmission is continuously waited.
As shown in fig. 5, a first signal isolation and amplification module 21 and a first power isolation module 22 are disposed in the first signal unit 20, and a second signal isolation and amplification module 31 and a second power isolation module 32 are disposed in the second signal unit 30;
the first signal isolation amplifying module 21, i.e. U1 in fig. 5, is used for shaping and amplifying the feedback signal of the lamp; the serial port for isolating the first signal unit 20 from the control unit 10;
the second signal isolation amplifying module 31, i.e. U2 in fig. 5, is used for shaping the amplifying control signal; the serial port for connecting the second signal unit 30 and the control unit 10 is isolated;
the first power isolation module 22, i.e. U3 in fig. 5, is used for isolating the power supply ground and voltage of the first signal unit 20 and the control unit 10;
the second power isolation module 32, i.e. U4 in fig. 5, is used to positively isolate the supply ground, voltage of the second signal unit 30 and the control unit 10.
The first signal isolation amplification module 21 and the second signal isolation amplification module 31 are arranged, so that the signal anti-interference capability of the first signal unit 20 and the second signal unit 30 can be improved, the signal interference is reduced, and the normal transmission of signals is facilitated; through being equipped with first power isolation module 22 and second power isolation module 32, make the power supply ground of first signal unit 20, second signal unit 30 and control unit 10, voltage is positive, all keep apart, even if the input signal bus is electrified, neither can damage control unit 10, be favorable to protecting control unit 10, thereby be favorable to protecting the signal amplifier, prolong its working life, avoid simultaneously because of signal bus unexpected with other forceful electric power short circuits, lead to the signal bus to have the lamps and lanterns damage that the forceful electric power damaged string was in the signal bus, the working life of extension lamps and lanterns, in addition, the lamps and lanterns of signal bus is few then dozens of more then hundreds, be favorable to reducing the loss.
The first signal unit 20 and the second signal unit 30 are respectively provided with a first ESD transient suppressor diode and a second ESD transient suppressor diode. The arrangement is favorable for protecting the bus connected with the signal amplifier from repeated ESD electrostatic interference, thereby being favorable for the normal operation of the lamp control system.
The lamp control system provided by the invention can effectively realize the shaping and amplification of communication signals, can realize the one-way communication control and the two-way communication control of the lamp, can know the state information of the lamp and is convenient for the unified management of the lamp; the bidirectional transmission is bidirectional transparent transmission, any signal (including and not limited to RDM signal) needing bidirectional transmission can be met, and the application range of the lamp control system is widened; in addition, signal isolation and power supply isolation can be performed on the first signal unit 20, the control unit 10, and the second signal unit 30, signal interference resistance can be improved, and a signal amplifier and a lamp can be protected. The above embodiments are provided to illustrate, reproduce and deduce the technical solutions of the present invention, and to fully describe the technical solutions, the objects and the effects of the present invention, so as to make the public more thoroughly and comprehensively understand the disclosure of the present invention, and not to limit the protection scope of the present invention.
The above embodiments are not exhaustive lists based on the present invention, and in the above embodiments, only the first signal unit and the second signal unit are described, i.e. the signal one-in one-out mode is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.
Claims (10)
1. The lamp bidirectional signal amplification method is characterized by comprising the following steps:
the console sends a control signal to the signal amplifier;
the signal amplifier receives the control signal sent by the console, analyzes the control signal and judges the type of the control signal;
the signal amplifier executes a corresponding working instruction according to the judgment result of the control signal type and controls the working state of the signal amplifier according to the working instruction;
when the control signal type is a one-way communication control signal, the signal amplifier executes a first working instruction, shapes and amplifies the control signal, and transmits the control signal to the lamp to finish transmission;
when the control signal type is a bidirectional communication control signal, the signal amplifier executes a second working instruction, shapes and amplifies the control signal, transmits the control signal to the lamp, and waits for the lamp to return a feedback signal;
the lamp transmits a feedback signal to the signal amplifier, and the signal amplifier receives the feedback signal of the lamp;
the signal amplifier shapes and amplifies the feedback signal and transmits the feedback signal back to the console.
2. The lamp bi-directional signal amplification method of claim 1, wherein the signal amplifier operating step comprises,
the first signal unit receives a control signal sent by the console and transmits the control signal to the control unit;
the control unit receives the control signal, analyzes the control signal and judges the type of the control signal;
the control unit sends a corresponding working instruction to the second signal unit according to the judgment result of the type of the control signal, and controls the working state of the second signal unit;
when the control signal type is a one-way communication control signal, the control unit sends a first working instruction to the second signal unit, the second signal unit receives the first working instruction, and the control signal is shaped, amplified and transmitted to the lamp to complete transmission;
when the control signal type is a bidirectional communication control signal, the control unit sends a second working instruction to the second signal unit, the second signal unit receives the second working instruction, shapes and amplifies the control signal and transmits the control signal to the lamp, and then the lamp waits for a feedback signal to return;
the lamp transmits a feedback signal to the second signal unit, and the second signal unit receives the feedback signal transmitted by the lamp and transmits the feedback signal back to the first signal unit;
the first signal unit receives the feedback signal, shapes and amplifies the feedback signal, and then transmits the feedback signal back to the console to finish transmission.
3. The lamp bi-directional signal amplification method of claim 2,
the control unit sends a corresponding working instruction to the second signal unit according to the judgment result of the type of the control signal, and controls the working state of the second signal unit, including,
if the control signal is a one-way communication control signal, the control unit sends a first working instruction to the second signal unit and controls the working state of the second signal unit to be an output state;
if the control signal is a bidirectional communication control signal, the control unit sends a second working instruction to the second signal unit and controls the second signal unit to be switched from the output state to the receiving state.
4. The lamp bi-directional signal amplification method of claim 2, further comprising the step of,
the control unit rapidly receives and caches the signal data of the first signal unit through serial port interruption, and analyzes and judges whether the second signal unit is in an idle state;
when the second signal unit is in an idle state, shaping, amplifying and outputting the signal data through the second signal unit; or,
the control unit rapidly receives and caches the signal data of the second signal unit through serial port interruption, and analyzes and judges whether the first signal unit is in an idle state or not;
and when the first signal unit is in an idle state, shaping, amplifying and outputting the signal data through the first signal unit.
5. The lamp bi-directional signal amplification method of claim 4, further comprising the step of,
the control unit controls the first signal unit or the second signal unit to be in a signal receiving state;
after the control unit receives the control signal transmitted by the first signal unit, the serial port connected with the first signal unit by the control unit generates serial port interruption; or,
after the control unit receives the feedback signal transmitted by the second signal unit, the serial port connected with the second signal unit by the control unit generates serial port interrupt.
6. The lamp bi-directional signal amplification method of claim 5, further comprising the step of,
the control unit caches and receives signal data transmitted by the first signal unit/the second signal unit and judges whether the other signal unit is in an idle state, wherein the first signal unit/the second signal unit is in a busy state when processing data received by a serial port interrupt, and is in the idle state when no data is processed;
when the other signal unit is in an idle state, the control unit switches the receiving state of the other signal unit into an output state, and shapes, amplifies and outputs the buffered signal data;
and when the signal data are completely output, the control unit switches the signal unit from the output state to the receiving state.
7. A luminaire control system, comprising,
the system comprises a console, at least one signal amplifier and at least one lamp, wherein one end of the signal amplifier is connected with the console, and the other end of the signal amplifier is connected with the lamp;
the control console is used for sending control signals to the lamp and receiving feedback signals of the lamp to control the lamp;
the signal amplifier is used for receiving the control signal and judging the type of the control signal; the signal amplifier is used for controlling the working state of the signal amplifier according to the type of the control signal, wherein when the type of the control signal is a one-way communication control signal, the signal amplifier shapes and amplifies the control signal and then transmits the control signal to the lamp to finish transmission; when the control signal type is a bidirectional communication control signal, shaping, amplifying and transmitting the control signal to the lamp, and waiting for receiving a feedback signal returned by the lamp; used for shaping and amplifying the feedback signal and then transmitting the feedback signal back to the console.
8. The luminaire control system of claim 7,
the signal amplifier comprises a first signal unit, a control unit and a second signal unit, the first signal unit is connected with the console, the second signal unit is connected with the lamp, one end of the control unit is connected with the first signal unit, and the other end of the control unit is connected with the second signal unit;
the first signal unit is used for receiving the control signal sent by the console and transmitting the control signal to the control unit; the lamp feedback signal receiving unit is used for receiving the lamp feedback signal transmitted by the second signal unit, shaping and amplifying the lamp feedback signal and transmitting the lamp feedback signal back to the console;
the second signal unit is used for receiving the control signal transmitted by the control unit, shaping and amplifying the control signal and outputting the control signal to the lamp; the first signal unit is used for receiving a feedback signal transmitted by the lamp and transmitting the feedback signal back to the first signal unit;
the control unit is used as a control core of the signal amplifier and used for receiving/transmitting a control signal or signal data of a feedback signal of the lamp; used for judging the type of the control signal; the first signal unit or the second signal unit is used for judging whether the first signal unit or the second signal unit is in an idle state; the control circuit is used for controlling the working states of the first signal unit and the second signal unit.
9. The luminaire control system of claim 8,
a first signal isolation amplification module and a first power isolation module are arranged in the first signal unit, and a second signal isolation amplification module and a second power isolation module are arranged in the second signal unit;
the first signal isolation amplification module is used for shaping and amplifying a feedback signal of the lamp; the serial port is used for isolating the first signal unit from the connection serial port of the control unit;
the second signal isolation amplifying module is used for shaping and amplifying the control signal; the serial port is used for isolating the second signal unit from the connection serial port of the control unit;
the first power isolation module is used for isolating the ground and the voltage of the power supply of the first signal unit and the control unit;
and the second power isolation module is used for positively isolating the power supply ground and the voltage of the second signal unit and the control unit.
10. The lamp control system of claim 8, wherein a first ESD transient suppression diode and a second ESD transient suppression diode are disposed in each of the first signal unit and the second signal unit.
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