CN111010777A - Control circuit and equipment control system - Google Patents
Control circuit and equipment control system Download PDFInfo
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- CN111010777A CN111010777A CN201911425838.4A CN201911425838A CN111010777A CN 111010777 A CN111010777 A CN 111010777A CN 201911425838 A CN201911425838 A CN 201911425838A CN 111010777 A CN111010777 A CN 111010777A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The application provides a control circuit and an equipment control system. Wherein, the control circuit includes: the signal generating module and the signal processing module; the signal generating module comprises a plurality of switch units which are connected in parallel, the first end of each switch unit is connected with a live wire or a zero wire of the commercial power, and the second end of each switch unit is connected with the first end of the signal processing module; the signal generation module is used for generating a first control signal based on the switching state of each switching unit; and the signal processing module is used for receiving the first control signal from the signal generating module and outputting a target control signal for controlling the corresponding target electric equipment based on the first control signal. The control of a plurality of electric devices can be realized, and the effect that the wiring of a control circuit is more convenient is achieved under the condition that the cost is not increased.
Description
Technical Field
The application belongs to the technical field of control, and particularly relates to a control circuit and an equipment control system.
Background
The existing dimming technology generally comprises silicon controlled dimming, 0-10V dimming, a DALI dimming control system, a wireless dimming system and the like. The silicon controlled rectifier dimming, the 0-10V dimming and the like can simultaneously dim a plurality of lamps, but because each dimmer is due to power, the number of the lamps controlled by the dimmer is usually only a few to a dozen, and the cost of the dimmer is higher. DALI dimming control systems can address dimming of each lamp, but the overall system is expensive. The wireless dimming system is easy to realize mistaken dimming in the dimming process due to the environment, and the whole system is high in debugging complexity and high in cost.
Therefore, the conventional dimming technology generally has the problems of complicated wiring of the control circuit or high implementation cost.
Disclosure of Invention
In view of the above, an object of the embodiments of the present application is to provide a control circuit and a device control system, which are used to solve the problems of complicated control circuit wiring and high implementation cost in the prior art.
In a first aspect, an embodiment of the present application provides a control circuit, where the control circuit includes: the signal generating module and the signal processing module;
the signal generating module comprises a plurality of switch units which are connected in parallel, a first end of each switch unit is connected with a live wire or a zero wire of a mains supply, and a second end of each switch unit is connected with one input end of the signal processing module;
the signal generation module is used for generating a first control signal based on the switching state of each switching unit;
the signal processing module is configured to receive the first control signal from the signal generating module, and output a target control signal for controlling a corresponding target electrical device based on the first control signal.
In the implementation process, the first end of each switch unit is connected with a live wire or a zero wire of a commercial power, the signal generation module generates a first control signal based on the switching state of each switch unit and transmits the first control signal to the signal processing module, so that the signal processing module processes each received first control signal and outputs a target control signal for controlling corresponding target electric equipment. Therefore, the control over a plurality of electric devices can be realized, and the signal generation module can be connected from a live wire or a zero wire at will, so that the effect of more convenient wiring of the control circuit can be achieved under the condition of not increasing the cost.
Optionally, the switching unit comprises: at least one switching device; the switching device includes: any one of a mechanical switch, a relay and a MOS tube.
In the above implementation, each switching unit includes at least one switching device, and the switching device includes: any one of a mechanical switch, a relay and a MOS tube.
In the above implementation process, each switching unit includes at least one switching device, and the switching state of the switching unit can be controlled by being turned on or off based on the at least one switching device.
Optionally, the signal processing module includes: the rectifying unit is connected with the isolating units through a ground wire;
the first end of the rectifying unit is connected with the ground wire, the second end and the third end of the rectifying unit are respectively connected with a live wire and a zero wire of a mains supply, the fourth end of the rectifying unit is used as a voltage output end, and the rectifying unit is used for rectifying the received mains supply and outputting a first voltage through the fourth end of the rectifying unit;
the first end of each isolation unit is connected with a ground wire, the second end of each isolation unit is connected with a second voltage, the third end of each isolation unit is used as an input end of the signal processing module and connected with the signal generating module, the fourth end of each isolation unit is used as a signal output end of the signal processing module and used for isolating the first control signal received from the signal generating module to obtain a second control signal, and the second control signal is used as the target control signal and output through the third end of each isolation unit to control the power state and/or power of the corresponding target electric equipment.
In the implementation process, the rectifying unit is configured to rectify the received commercial power and output a first voltage through a fourth terminal of the rectifying unit; the first voltage is the total output voltage of the circuit, the isolation unit isolates the first control signal to obtain a second control signal and outputs the second control signal, and the control on the power state and/or the power of at least one corresponding target electric device can be realized.
Optionally, the isolation unit comprises: the protection subunit, the rectifier subunit, the voltage-stabilizing subunit and the optical coupler subunit;
the protection subunit is connected with the rectifier subunit and used for protecting the isolation unit;
the rectifier subunit is connected with the optical coupler subunit and used for rectifying the first control signal;
the voltage stabilizing subunit is connected with the rectifier subunit in parallel and used for stabilizing the voltage at two ends of the rectifier subunit;
and the optical coupler subunit is used for isolating the rectified first control signal to obtain the second control signal.
In the implementation process, the protection subunit can play a circuit protection role on a circuit in the isolation unit, the rectifier subunit rectifies the first control signal, the voltage stabilizing subunit plays a role in stabilizing voltages at two ends of the rectifier subunit, and the optical coupling subunit can isolate the rectified first control signal and obtain a second control signal for outputting.
Optionally, the protection subunit includes: a protection resistor; the first end of the protection resistor is connected with the second end of one switch unit in the signal generation module; and the second end of the protection resistor is connected with the first end of the rectifier subunit.
In the implementation process, the protection resistor is connected into the isolation unit circuit in series, and can protect the isolation unit circuit.
Optionally, the rectifier sub-unit comprises: the circuit comprises a first resistor, a second resistor, a first diode and a first capacitor; the first resistor, the second resistor and the anode of the first diode are connected in series, wherein the second resistor is connected with the anode of the first diode; the anode of the first capacitor is connected with the cathode of the first diode; and the negative electrode of the first capacitor is connected with the ground wire.
In the implementation process, a rectifier subunit formed by the first resistor, the second resistor, the first diode and the first capacitor plays a role in performing half-wave rectification on the first control signal.
Optionally, the voltage regulation subunit comprises a first voltage regulation diode; the cathode of the first voltage stabilizing diode is connected with the connection point of the first diode and the optical coupler subunit; and the anode of the first voltage stabilizing diode is connected with the ground wire.
In the implementation process, the first voltage stabilizing diode can stabilize the voltage at two ends of the first capacitor.
Optionally, the optical coupler unit includes: the first resistor, the second diode, the first triode and the fourth resistor are connected in series;
the first end of the third resistor is connected with the rectifier subunit, the anode of the second diode is connected with the second end of the third resistor, and the cathode of the second diode is connected with the ground wire;
the second diode is connected with the first triode in a coupling mode;
an emitter of the first triode is connected with a first end of the fourth resistor, a second end of the fourth resistor is connected with the second voltage, and a collector of the first triode is used as the signal output end and used for outputting the target control signal.
In the implementation process, the optical coupler subunit can isolate the rectified first control signal and output a target control signal capable of controlling the power states and/or powers of the plurality of electric devices.
In a second aspect, the present application provides an appliance control system comprising: a plurality of consumers, and the control circuit of the first aspect;
and a plurality of signal output ends of a signal processing module in the control circuit are connected with the plurality of electric devices.
To sum up, the control circuit and the equipment control system that this application provided can realize the control to a plurality of consumer, and because signal generation module can be connected out from live wire or zero line wantonly, consequently can reach the more convenient effect of control circuit wiring under the condition that does not improve the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a control circuit according to an embodiment of the present disclosure.
Fig. 2 is a block diagram of a signal generation module of a control circuit according to an embodiment of the present disclosure.
Fig. 3 is a block diagram of a signal processing module of a control circuit according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of a rectifying unit of the control circuit according to the embodiment of the present application.
Fig. 5 is a schematic structural diagram of an isolation unit of a control circuit according to an embodiment of the present disclosure.
Fig. 6 is a circuit structure diagram of a control circuit according to an embodiment of the present application.
Icon: 100-a signal generation module; 200-a signal processing module; 210-a rectifying unit; 220-an isolation unit; HV-high Voltage; e-ground wire; 221-a protection subunit; 222-a rectifier sub-unit; 223-a voltage stabilizing subunit; 224-optical coupling subunit; f1-protective resistance; r1 — first resistance; r2 — second resistance; r3 — third resistance; r4-fourth resistor; d1 — first diode; ZD 1-a first zener diode; c1 — first capacitance; a positive electrode of a capacitor; d2 — second diode; BD 1-first triode; SOT _ 4-optocoupler; a P-signal output terminal; VCC-low voltage; j2-socket; f2-second protection resistor; r5-fifth resistor; r6-sixth resistance; r7 — seventh resistor; r8 — eighth resistance; d3 — third diode; ZD 2-second zener diode; c2 — second capacitance; d4 — fourth diode; BD 2-second transistor.
Detailed Description
The technical solution in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance, and thus should not be construed as limiting the present application.
In the description of the present application, it should also be noted that, unless otherwise explicitly specified or limited, the terms "module," "unit," "connection," and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a control circuit according to an embodiment of the present disclosure. The control circuit of the present embodiment includes: signal generation module 100, signal processing module 200.
The signal generating module 100 includes a plurality of switch units connected in parallel, a first end of each switch unit is connected to a live wire or a neutral wire of the commercial power, and a second end of each switch unit is connected to an input end of the signal processing module 200. For example, fig. 2 is a block schematic diagram of a signal generation module 100 of a control circuit provided in an embodiment of the present application. As shown in fig. 2, the signal generating module 100 includes a plurality of switch units S1, S2 … Sn. In the figure, the commercial power L represents the live wire of the commercial power, and the commercial power N represents the zero wire of the commercial power.
The signal generating module 100 is configured to generate a first control signal based on the switching states of the plurality of switching units (S1, S2 … Sn).
Each switching element Si (i ═ 1,2,3, …, n) can produce two states of on or off, so that the output signal of each channel of the signal generating module 100 can assume two states, i.e., a state in which current flows and a state in which no current flows. In this embodiment, the signal generating circuit in the signal generating module 100 may be set to be a single circuit output or a plurality of parallel circuit outputs as required, that is, n may be equal to 1 or greater than 1. When n is greater than 1, the signal generating module 100 includes a plurality of switching units, i.e., has a plurality of signal generating circuits connected in parallel.
Illustratively, each signal generating circuit generates two states of control signals by closing or opening the switch units S1, S2 … or Sn. When the number of the switch units is one, the switch units are output by a single branch circuit and can generate control signals in two states; when the number of the switch units is two, the output of the two branch circuits is obtained, and the two branch circuits can generate two paths of control signals in different states, so that the control signals in four different states can be combined; when the number of the switch units is three, eight control signals in different states can be combined; by analogy, when the number of the switch units is n, 2 can be generatednControl signals of different states. Taking the electric equipment as n lamps as an example, since the power state of each lamp includes on and off, the power state of n lamps has 2nThe state of the seed so as to pass through 2nThe control signals in different states can realize the control of the power states of the n lamps.
Each input end of the signal processing module 200 is connected to an output end of the signal generating module 100, and each input end of the signal processing module 200 is configured to receive a first control signal from the signal generating module 100, and output a target control signal for controlling an electrical device based on the first control signal. Each signal output terminal P of the signal processing module 200 outputs the target control signal.
The second terminal of each switch unit is an output terminal of the signal generating module 100, and each output terminal is connected to an input terminal of the signal processing module 200, so that the signal processing module 200 at least includes n input terminals, and the n input terminals correspond to the switch units S1 and S2 … Sn, respectively. After any one of the switch units Si of the signal generating module 100 generates the first control signal, the first control signal may be transmitted to the signal processing module 200 through the input terminal i of the signal processing module 200 connected to the switch unit Si. After receiving the first control signal, the signal processing module 200 rectifies and isolates the first control signal and outputs a target control signal for controlling the target electrical device.
For example, the electric devices may be plural, and correspond to the plural switch units, respectively. That is, there may be n electric devices for the switch units S1 and S2 … Sn, which are respectively denoted as electric devices 1 to n, and respectively correspond to the switch units S1 and S2 … Sn, the target electric device corresponding to the switch unit S1 is the electric device 1, the target electric device corresponding to the switch unit S2 is the electric device 2, and so on.
Different switch units of the switch units S1 and S2 … Sn are turned on or off, and may form a combination of a plurality of different control signals to control different electric devices to be turned on or off. The switch units S1 and S2 are closed, and the other switch units are opened to form a control signal combination, so that the electric devices 1 and 2 corresponding to the switch units S1 and S2 are controlled to be opened, and the other electric devices are closed; the switch units S3 and S5 are closed, and the other switch units are opened to form another control signal combination, so that the electric devices 3 and 5 corresponding to the switch units S3 and S5 are controlled to be opened, and the other electric devices are closed.
Further, since the plurality of electric devices may be n lamps, and n paths of first control signals may be generated based on the switching states of the plurality of switching units (S1, S2 … Sn), the signal processing module 200 may output n paths of target control signals based on the n paths of first control signals, and may control the n lamps according to the n paths of target control signals. Besides the light fixture, the plurality of electric devices may be other electric devices.
Therefore, the above embodiment can realize the control of a plurality of electric devices, and the signal generating module can be arbitrarily connected from a live wire or a zero wire, so that the effect of more convenient wiring of the control circuit can be achieved without increasing the cost.
Alternatively, at least one switching device may be included in each switching unit (S1, S2 …, or Sn).
Each of the at least one switching device included in the switching unit may be any one of a mechanical switch, a relay, and a Metal Oxide Semiconductor (MOS) transistor, but is not limited to the above-mentioned mechanical switch, relay, and MOS transistor, and the switching device may be any other device capable of being used as a switch.
Optionally, the control circuit provided in this embodiment may further control the power of the electrical device through the target control signal. For example, different states represented by multiple target control signals may be associated with different powers.
Alternatively, as shown in fig. 3, fig. 3 is a block schematic diagram of a signal processing module 200 of a control circuit provided in the embodiment of the present application. The signal processing module 200 may include: the rectifier unit 210 and the isolation units 220 are connected through a ground line E.
The first end of the rectifying unit 210 is connected to the ground line E, the second end and the third end of the rectifying unit 210 are respectively connected to the live line and the zero line of the commercial power, the fourth end of the rectifying unit 210 serves as a voltage output end, the rectifying unit 210 is configured to rectify the received commercial power, and output a first voltage through the fourth end of the rectifying unit 210, where the first voltage may be a high voltage HV.
The first end of each isolation unit 220 is connected to the ground line E, the second end of each isolation unit 220 is connected to a second voltage, which may be a low voltage VCC, the third end of each isolation unit 220 is connected to the signal generation module 100 as an input end of the signal processing module 200, the fourth end of each isolation unit 220 is used as a signal output end P of the signal processing module 200, and is configured to isolate the first control signal received from the signal generation module 100 to obtain a second control signal, and output the second control signal as a target control signal through the third end of each isolation unit 220, so as to control the power state and/or power of the corresponding target electrical device.
In the implementation process, the rectifying unit 210 rectifies the received commercial power and outputs a first voltage through the fourth terminal of the rectifying unit 210. The second terminal of each isolation unit 220 is connected to a second voltage, which is a low voltage VCC for providing driving energy for the isolation unit 220.
The first end of the rectifying unit 210 is grounded, the first end of each isolating unit 220 is grounded, and the rectifying unit 210 and each isolating unit 220 are connected through the ground wire E, so that the effect of more convenient control circuit wiring can be achieved.
Each isolation unit 220 isolates the first control signal to obtain a second control signal and outputs the second control signal, so that the power states and/or powers of a plurality of corresponding target electric devices can be controlled.
Optionally, fig. 4 is a schematic structural diagram of the rectifying unit 210 of the control circuit provided in the embodiment of the present application. As shown in fig. 4, the rectifying unit 210 includes four diodes, a transformer, and four diodes connected in a bridge manner. The four diodes comprise a bridge circuit formed by connecting in a bridge mode, the bridge circuit comprises two branches, each branch comprises two diodes connected in series, a first connecting point (a connecting point of anodes of the diodes in the two branches) of the two branches is connected with a ground wire E, a second connecting point (a connecting point of cathodes of the diodes in the two branches) of the two branches is used as a voltage output end to output a first voltage, the first voltage is a high voltage HV, middle points (connecting points of the two diodes in the branches) of the two branches are respectively connected with two ends of one side of a transformer, and two ends of the other side of the transformer are used for being connected with a zero line and a live line of a mains supply.
The bridge circuit is configured to rectify a received commercial power and output a first voltage through a second connection point of two branches of the bridge circuit in the rectification unit 210, where the commercial power is an alternating current and the first voltage is a direct current. That is, the bridge circuit rectifies the ac current of the utility power into dc current.
Alternatively, as shown in fig. 5, fig. 5 is a schematic structural diagram of an isolation unit 220 of a control circuit provided in the embodiment of the present application. The isolation unit 220 includes: a protection sub-unit 221, a rectifier sub-unit 222, a voltage regulator sub-unit 223, and an optical coupler sub-unit 224. The protection subunit 221 is connected to the rectifying subunit 222 for protecting the isolation unit 220. The rectifying sub-unit 222 is connected to the optical coupling sub-unit 224 for rectifying the first control signal. The voltage stabilizer unit 223 is connected in parallel with the rectifier unit 222 for stabilizing the voltage across the rectifier unit 222. And the optical coupler subunit 224 is configured to isolate the rectified first control signal, so as to obtain the second control signal.
In the above implementation process, the first control signal is transmitted to the rectifying subunit 222 through the protection subunit 221. The rectifier sub-unit 222 rectifies the first control signal, transmits the rectified control signal to the optocoupler SOT _4, obtains a second control signal after being isolated by the optocoupler SOT _4, and outputs the second control signal as a target control signal.
Alternatively, as shown in fig. 5, the protection subunit 221 includes: protection resistor F1.
A first terminal of the protection resistor F1 is connected to a second terminal of one of the switching units in the signal generating module 100 through the socket J2. The second terminal of the protection resistor F1 is connected to the first terminal of the first resistor R1.
In the implementation process, the first end of the protection resistor F1 is connected to the socket J2 to be connected to the second end of one switch unit through the socket J2, and the second end of the protection resistor F1 is connected in series to the first resistor R1, so that the protection resistor F1 can receive the first control signal and can protect the circuit.
Alternatively, as shown in fig. 5, the rectifying sub-unit 222 includes: the circuit comprises a first resistor R1, a second resistor R2, a first diode D1 and a first capacitor C1. The first resistor R1, the second resistor R2 are connected in series and the anode of the first diode D1 is connected in series, wherein the second resistor R2 is connected with the anode of the first diode D1. The positive pole (+) of the first capacitor C1 is connected to the negative pole of a first diode D1. The negative pole of the first capacitor C1 is connected to the ground line E.
In the implementation process, the first resistor R1, the second resistor R2, the first diode D1, and the first capacitor C1 form a rectifying subunit 222, perform half-wave rectification on the first control signal received from the signal processing module 100, and transmit the half-wave rectified first control signal to the optical coupler subunit 224.
Optionally, the voltage regulator sub-unit 223 comprises a first voltage regulator diode ZD 1; the cathode of the first zener diode ZD1 is connected to the connection point of the first diode D1 and the optical coupler sub-unit 224. The anode of the first zener diode ZD1 is connected to the ground line E.
In the implementation process, the first zener diode ZD1 can stabilize the voltage across the first capacitor C1 in the rectifier sub-unit 222, and plays a role in protecting the rectifier sub-unit 222.
Alternatively, as shown in fig. 5, the optical coupler unit 224 includes: the circuit comprises a third resistor R3, a second diode D2, a first triode BD1 and a fourth resistor R4. A first end of the third resistor R3 is connected to the rectifier sub-unit 222, an anode of the second diode D2 is connected to a second end of the third resistor R3, and a cathode of the second diode D2 is connected to the ground line E. The second diode D2 is coupled to the first transistor BD 1. An emitter of the first transistor BD1 is connected to a first end of the fourth resistor R4, a second end of the fourth resistor R4 is connected to a second voltage, and the second voltage is a low voltage VCC. The collector of the first transistor BD1 serves as a signal output terminal P for outputting the target control signal. The second diode D2 and the first transistor BD1 form an optocoupler SOT _ 4.
Illustratively, the first control signal is transferred to the second diode D2 by a third resistor R3. The second diode D2 is coupled to the first transistor BD1 to form an optocoupler SOT _ 4. The emitter of the first transistor BD1 is connected in series with the fourth resistor R4, and is connected to the low voltage VCC, and the low voltage VCC provides driving energy to drive the first transistor BD1 to operate. The second diode D2 and the first transistor BD1 form an optocoupler SOT _4, which outputs a target control signal from the signal output terminal P after isolating the control signal. The signal output end P is connected to a controller, which may be a single chip microcomputer for receiving a target control signal output by the optical coupler subunit 224, and the controller is not limited to the single chip microcomputer, but may also be any other device having a processing function, such as a logic circuit, a CPU, an MCU, and the like.
Fig. 6 is a circuit structure diagram of a control circuit according to an embodiment of the present application, and as shown in fig. 6, a first end of each of a plurality of switch units S1-Sn in a signal generating module 100 is electrically connected to a live line (or a neutral line) of a commercial power, and a second end of each of the plurality of switch units S1-Sn is connected to a socket J2 as an output end of the signal generating module 100; the signal processing module 200 includes a rectifying unit 210 and a plurality of isolation units 220, and for each isolation unit 220, a first end thereof is connected to the ground E, a second end thereof is connected to the second voltage VCC, a third end thereof is used as an input end of the signal processing module and is connected to the socket J2, and a fourth end thereof is used as a signal output end P of the signal processing module 200, so that an output end of the signal generating module 100 is connected to one isolation unit 220 of the signal processing module 200 through the socket J2. Wherein each isolation unit 220 has the same structure. The second isolation unit 220 shown in fig. 6 includes a second protection resistor F2, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a third diode D3, a second zener diode ZD2, a C2-second capacitor, a fourth diode D4, and a second transistor BD2, which respectively have the same functions as the protection resistor F1, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the first diode D1, the first zener diode ZD1, the first capacitor C1, the second diode D2, and the first transistor BD1 in the first isolation unit 220. By analogy, the circuit structures of other isolation units 220 and the functions of the devices in the circuit can refer to the first isolation unit 220, and are not described again.
The application provides an equipment control system, including: a plurality of consumers, and a control circuit as described above with respect to any of the embodiments of fig. 1-6;
a plurality of signal output terminals P of the signal processing module 200 in the control circuit are connected to a plurality of electric devices. For example, the signal processing module 200 has a plurality of signal output ends P connected to a single chip, and each input end of the single chip is configured to receive a target control signal output by each signal output end P and control a corresponding electrical device according to each target control signal. In the above embodiments, the present invention may not be limited to a single chip, but may be any other device having a processing function, such as a logic circuit, a CPU, and an MCU. The implementation manner of the device control system for controlling the plurality of electric devices is the same as that described in any one of the embodiments of fig. 1 to 6, and is not described again.
To sum up, control circuit and equipment control system that this application provided, every the first end of switch element is connected with the live wire or the zero line of commercial power, signal generation module generates first control signal based on the on off state of every switch element, and will first control signal transmits signal processing module for every way received first control signal handles the target control signal that the back output is used for controlling corresponding target consumer. Therefore, the control over a plurality of electric devices can be realized, and the signal generation module can be connected from a live wire or a zero wire at will, so that the effect of more convenient wiring of the control circuit can be achieved under the condition of not increasing the cost.
The foregoing is illustrative of only alternative embodiments of the present application and is not intended to limit the present application, which may be modified or varied by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A control circuit, the control circuit comprising: the signal generating module and the signal processing module;
the signal generating module comprises a plurality of switch units which are connected in parallel, a first end of each switch unit is connected with a live wire or a zero wire of a mains supply, and a second end of each switch unit is connected with one input end of the signal processing module;
the signal generation module is used for generating a first control signal based on the switching state of each switching unit;
the signal processing module is configured to receive the first control signal from the signal generating module, and output a target control signal for controlling a corresponding target electrical device based on the first control signal.
2. The control circuit according to claim 1, wherein the switching unit includes: at least one switching device.
3. The control circuit of claim 2, wherein the switching device comprises: any one of a mechanical switch, a relay and a MOS tube.
4. The control circuit of claim 1, wherein the signal processing module comprises: the rectifying unit is connected with the isolating units through a ground wire;
the first end of the rectifying unit is connected with the ground wire, the second end and the third end of the rectifying unit are respectively connected with a live wire and a zero wire of a mains supply, the fourth end of the rectifying unit is used as a voltage output end, and the rectifying unit is used for rectifying the received mains supply and outputting a first voltage through the fourth end of the rectifying unit;
the first end of each isolation unit is connected with a ground wire, the second end of each isolation unit is connected with a second voltage, the third end of each isolation unit is used as an input end of the signal processing module and connected with the signal generating module, the fourth end of each isolation unit is used as a signal output end of the signal processing module and used for isolating the first control signal received from the signal generating module to obtain a second control signal, and the second control signal is used as the target control signal and output through the third end of each isolation unit to control the power state and/or power of the corresponding target electric equipment.
5. The control circuit of claim 4, wherein the isolation unit comprises: the protection subunit, the rectifier subunit, the voltage-stabilizing subunit and the optical coupler subunit;
the protection subunit is connected with the rectifier subunit and used for protecting the isolation unit;
the rectifier subunit is connected with the optical coupler subunit and used for rectifying the first control signal;
the voltage stabilizing subunit is connected with the rectifier subunit in parallel and used for stabilizing the voltage at two ends of the rectifier subunit;
and the optical coupler subunit is used for isolating the rectified first control signal to obtain the second control signal.
6. The control circuit of claim 5, wherein the protection subunit comprises: a protection resistor;
the first end of the protection resistor is connected with the second end of one switch unit in the signal generation module;
and the second end of the protection resistor is connected with the first end of the rectifier subunit.
7. The control circuit of claim 5, wherein the rectifier sub-unit comprises: the circuit comprises a first resistor, a second resistor, a first diode and a first capacitor;
the first resistor, the second resistor and the anode of the first diode are connected in series, wherein the second resistor is connected with the anode of the first diode;
the anode of the first capacitor is connected with the cathode of the first diode;
and the negative electrode of the first capacitor is connected with the ground wire.
8. The control circuit of claim 5, wherein the voltage regulator subunit comprises a first voltage regulator diode;
the cathode of the first voltage stabilizing diode is connected with the connection point of the first diode and the optical coupler subunit;
and the anode of the first voltage stabilizing diode is connected with the ground wire.
9. The control circuit of claim 5, wherein the optical coupler sub-unit comprises: the first resistor, the second diode, the first triode and the fourth resistor are connected in series;
the first end of the third resistor is connected with the rectifier subunit, the anode of the second diode is connected with the second end of the third resistor, and the cathode of the second diode is connected with the ground wire;
the second diode is connected with the first triode in a coupling mode;
an emitter of the first triode is connected with a first end of the fourth resistor, a second end of the fourth resistor is connected with the second voltage, and a collector of the first triode is used as the signal output end and used for outputting the target control signal.
10. An appliance control system, comprising: a plurality of consumers, and the control circuit of any one of claims 1-9;
and a plurality of signal output ends of a signal processing module in the control circuit are connected with the plurality of electric devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911425838.4A CN111010777A (en) | 2019-12-31 | 2019-12-31 | Control circuit and equipment control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911425838.4A CN111010777A (en) | 2019-12-31 | 2019-12-31 | Control circuit and equipment control system |
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| CN111010777A true CN111010777A (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110254A (en) * | 2021-05-20 | 2021-07-13 | 美钻石油钻采系统(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
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2019
- 2019-12-31 CN CN201911425838.4A patent/CN111010777A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110254A (en) * | 2021-05-20 | 2021-07-13 | 美钻石油钻采系统(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
| CN113110254B (en) * | 2021-05-20 | 2023-03-03 | 美钻石油钻采系统(上海)有限公司 | Oil gas signal processing and control system of ocean platform and communication device thereof |
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