A drive-by-wire circuit

Abstract

The application provides a kind of drive-by-wire circuit, comprising: master unit;First, second control port;First, second switch module;And first, second controlled equipment;Master unit is used to send first control signal to first control port, and / or, send second control signal to second control port;First control port if first control signal is monitored and alternating current power signal meets first preset condition, then first switch module is turned on by control line, to open first controlled equipment;Second control port if second control signal is monitored and alternating current power signal meets second preset condition, then second switch module is turned on by control line, to open second controlled equipment;First preset condition and second preset condition are mutually exclusive.By the above structure, the application can be realized by a control line the control of first controlled equipment and second controlled equipment, thereby solving the problem that less wire reservation cannot meet the control of multiple electrical equipment.

Description

Technical Field

[0001] This application relates to the field of circuit control technology, and in particular to a wired control circuit. Background Technology

[0002] Currently, a single electrical device typically requires one power cord and one control cord. When multiple devices are used, a corresponding number of power cords and control cords need to be prepared. However, this control structure cannot be implemented when the existing control cords are insufficient to cover the controlled devices. Summary of the Invention

[0003] This application provides a wired control circuit to solve the problem that the number of wires is insufficient to meet the needs of electrical equipment.

[0004] In a first aspect, this application provides a wired control circuit, including: a main control unit, a first control port, a second control port, a first switch module, a second switch module, a first controlled device, and a second controlled device;

[0005] The main control unit is connected to the first control port and the second control port respectively. The first control port and the second control port are connected to the first switch module and the second switch module respectively via a control line. The first switch module is connected to the first controlled device. The second switch module is connected to the second controlled device.

[0006] The main control unit is used to send a first control signal to the first control port, and / or send a second control signal to the second control port;

[0007] The first control port is used to acquire AC power signals. If the first control signal is detected and the AC power signal meets the first preset condition, the first switch module is turned on through the control line.

[0008] The second control port is used to acquire AC power signals. If the second control signal is detected and the AC power signal meets the second preset condition, the second switch module is turned on through the control line. The first preset condition and the second preset condition are mutually exclusive.

[0009] The first controlled device is turned on when the first switch module is turned on; the second controlled device is turned on when the second switch module is turned on.

[0010] In one possible implementation, both the first control signal and the second control signal are high-level signals;

[0011] The first control port includes a first switching transistor circuit; and the first input terminal of the first switching transistor circuit is connected to the main control unit, and the second input terminal of the first switching transistor circuit is connected to the neutral line of the AC power supply; the neutral line is grounded.

[0012] The second control port includes a second switching transistor circuit, and the first input terminal of the second switching transistor circuit is connected to the main control unit, while the second input terminal of the second switching transistor circuit is grounded.

[0013] The first switching transistor circuit is turned on when the high-level signal and the first neutral signal are received; the second switching transistor circuit is turned on when the high-level signal and the second neutral signal are received.

[0014] Wherein, when the first neutral signal is a positive neutral signal, the second neutral signal is a negative neutral signal; when the first neutral signal is a negative neutral signal, the second neutral signal is a positive neutral signal.

[0015] In one possible implementation, the first switching transistor circuit includes a first switching transistor, a first resistor, a second resistor, a first diode, and a second diode;

[0016] The first end of the first diode is the first input terminal of the first switching transistor circuit. The second end of the first diode is connected to the first end of the first switching transistor and the first end of the first resistor. The second end of the first switching transistor is connected to the second end of the first resistor and the first end of the second resistor. The second end of the second resistor is the second input terminal of the first switching transistor circuit. The third end of the first switching transistor is connected to the first end of the second diode. The second end of the second diode is connected to the control line.

[0017] In one possible implementation, the first switch is an NMOS transistor.

[0018] In one possible implementation, the second switching transistor circuit includes a second switching transistor, a third resistor, a fourth resistor, a third diode, and a fourth diode;

[0019] The first end of the third diode is the first input terminal of the second switching transistor circuit. The second end of the third diode is connected to the third end of the second switching transistor and the first end of the third resistor. The second end of the second switching transistor is connected to the second end of the third resistor and the first end of the fourth resistor. The second end of the fourth resistor is the second input terminal of the second switching transistor circuit. The first end of the second switching transistor is connected to the first end of the fourth diode. The second end of the fourth diode is connected to the control line.

[0020] In one possible implementation, the second switch is a PMOS transistor.

[0021] In one possible implementation, the first switch module includes a first relay;

[0022] The first end of the coil of the first relay is connected to the neutral wire, and the second end of the coil of the first relay is connected to the control line; the first contact of the switch in the first relay is connected to the live wire of the AC power supply, and the second contact of the switch in the first relay is connected to the first controlled device.

[0023] In one possible implementation, the first switching module further includes a fifth diode, a sixth diode, and a first filtering unit;

[0024] The first end of the fifth diode and the first end of the first filter unit are respectively connected to the neutral wire of the AC power supply. The second end of the fifth diode is respectively connected to the second end of the first filter unit, the second end of the coil of the first relay, and the first end of the sixth diode. The second end of the sixth diode is connected to the control line.

[0025] In one possible implementation, the second switch module includes a second relay;

[0026] The first end of the coil of the second relay is connected to the control line, and the second end of the coil of the second relay is grounded; the first contact of the switch in the second relay is connected to the live wire of the AC power supply, and the second contact of the switch in the second relay is connected to the second controlled device.

[0027] In one possible implementation, the second switching module further includes a seventh diode, an eighth diode, and a second filtering unit;

[0028] The first end of the seventh diode is connected to the control line, and the second end of the seventh diode is connected to the first end of the second filter unit, the first end of the coil of the second relay, and the first end of the eighth diode; the second end of the eighth diode and the second end of the second filter unit are both grounded.

[0029] This application provides a wired control circuit, including: a main control unit, a first control port, a second control port, a first switch module, a second switch module, a first controlled device, and a second controlled device. The main control unit is used to send a first control signal to the first control port and / or send a second control signal to the second control port. The first control port is used to acquire an AC power signal. If the first control signal is detected and the AC power signal meets a first preset condition, the first switch module is turned on through the control line. The second control port is used to acquire the AC power signal. If the second control signal is detected and the AC power signal meets a second preset condition, the second switch module is turned on through the control line. The first preset condition and the second preset condition are mutually exclusive. The first controlled device is turned on when the first switch module is turned on. The second controlled device is turned on when the second switch module is turned on. With the above structure, this embodiment can control the first and second controlled devices through a single control line, thereby solving the problem that insufficient wire spacing cannot meet the control of multiple electrical devices. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the wired control circuit provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the wired control circuit provided in the embodiments of this application.

[0033] The above figures are labeled as follows:

[0034] D6, First diode; D5, Second diode; D7, Third diode; D8, Fourth diode; D1, Fifth diode; D3, Sixth diode; D4, Seventh diode; D2, Eighth diode; R4, First resistor; R3, Second resistor; R5, Third resistor; R6, Fourth resistor; R1, Fifth resistor; R2, Sixth resistor; Q1, First switching transistor; Q2, Second switching transistor; CD1, First capacitor; CD2, Second capacitor; K1, First relay; K2, Second relay; L, Live wire; N, Neutral wire. Detailed Implementation

[0035] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following description will be provided in conjunction with the accompanying drawings and specific embodiments.

[0037] Figure 1 This is a schematic diagram of the wired control circuit provided in an embodiment of this application. Figure 1 As shown, the wired control circuit includes: a main control unit, a first control port, a second control port, a first switch module, a second switch module, a first controlled device, and a second controlled device;

[0038] The main control unit is connected to the first control port and the second control port respectively. The first control port and the second control port are connected to the first switch module and the second switch module respectively via a control line. The first switch module is connected to the first controlled device. The second switch module is connected to the second controlled device.

[0039] The main control unit is used to send a first control signal to the first control port, and / or send a second control signal to the second control port;

[0040] The first control port is used to acquire AC power signals. If the first control signal is detected and the AC power signal meets the first preset condition, the first switch module is turned on through the control line.

[0041] The second control port is used to acquire AC power signals. If the second control signal is detected and the AC power signal meets the second preset condition, the second switch module is turned on through the control line. The first preset condition and the second preset condition are mutually exclusive.

[0042] The first controlled device is turned on when the first switch module is turned on; the second controlled device is turned on when the second switch module is turned on.

[0043] In this embodiment, the first controlled device and the second controlled device can be electrical appliances such as lamps, air conditioners, and audio equipment. The main control unit can be a control panel, remote control, or other similar device. The main control unit has on / off buttons for the first and second controlled devices to control their respective on / off states. These buttons can be physical or virtual. When the on / off button of the first controlled device is triggered, the main control unit generates a first control signal; when the on / off button of the second controlled device is triggered, the main control unit generates a second control signal.

[0044] Specifically, both the first control port and the second control port are connected to the main control unit and are powered by AC power. Specifically, this application utilizes the characteristic of mutually exclusive signal segments in the AC power signal, allowing the first and second control ports to alternately use a single control line to control the first and second switch modules to turn on, thereby controlling the corresponding controlled devices to start, thus ensuring compatibility with a wider range of wired control application environments.

[0045] As can be seen from the above embodiments, the wired control circuit provided in this embodiment realizes the control of the first controlled device and the second controlled device through a single control line, thereby solving the problem that the limited number of wires available cannot meet the control of multiple electrical devices.

[0046] In one possible implementation, both the first control signal and the second control signal are high-level signals;

[0047] The first control port includes a first switching transistor circuit; and the first input terminal of the first switching transistor circuit is connected to the main control unit, and the second input terminal of the first switching transistor circuit is connected to the neutral line of the AC power supply; the neutral line is grounded.

[0048] The second control port includes a second switching transistor circuit, and the first input terminal of the second switching transistor circuit is connected to the main control unit, while the second input terminal of the second switching transistor circuit is grounded.

[0049] The first switching transistor circuit is turned on when the high-level signal and the first neutral signal are received; the second switching transistor circuit is turned on when the high-level signal and the second neutral signal are received.

[0050] Wherein, when the first neutral signal is a positive neutral signal, the second neutral signal is a negative neutral signal; when the first neutral signal is a negative neutral signal, the second neutral signal is a positive neutral signal.

[0051] In one possible implementation, such as Figure 2 As shown, the first switching transistor circuit includes a first switching transistor Q1, a first resistor R4, a second resistor R3, a first diode D6, and a second diode D5.

[0052] The first terminal of the first diode D6 is the first input terminal of the first switching transistor circuit. The second terminal of the first diode D6 is connected to the first terminal of the first switching transistor Q1 and the first terminal of the first resistor R4. The second terminal of the first switching transistor Q1 is connected to the second terminal of the first resistor R4 and the first terminal of the second resistor R3. The second terminal of the second resistor R3 is the second input terminal of the first switching transistor circuit. The third terminal of the first switching transistor Q1 is connected to the first terminal of the second diode D5. The second terminal of the second diode D5 is connected to the control line.

[0053] In one possible implementation, the first switch Q1 is an NMOS transistor.

[0054] Specifically, when the first switching transistor Q1 is an NMOS transistor, the cathode of the first diode D6 is the first input terminal of the first switching transistor circuit, the anode of the first diode D6 is connected to the drain D of the first switching transistor Q1 and the first terminal of the first resistor R4, the gate S of the first switching transistor Q1 is connected to the second terminal of the first resistor R4 and the first terminal of the second resistor R3, and the second terminal of the second resistor R3 is the second input terminal of the first switching transistor circuit; the source S of the first switching transistor is connected to the cathode of the second diode D5, and the anode of the second diode D5 is connected to the control line.

[0055] In one possible implementation, the first switch Q1 can also be a PMOS transistor.

[0056] In one possible implementation, such as Figure 2 As shown, the second switching transistor circuit includes a second switching transistor Q2, a third resistor R5, a fourth resistor R6, a third diode D7, and a fourth diode D8;

[0057] The first terminal of the third diode D7 is the first input terminal of the second switching transistor circuit. The second terminal of the third diode D7 is connected to the third terminal of the second switching transistor Q2 and the first terminal of the third resistor R5. The second terminal of the second switching transistor Q2 is connected to the second terminal of the third resistor R5 and the first terminal of the fourth resistor R6. The second terminal of the fourth resistor R6 is the second input terminal of the second switching transistor circuit. The first terminal of the second switching transistor Q2 is connected to the first terminal of the fourth diode D8. The second terminal of the fourth diode D8 is connected to the control line.

[0058] In one possible implementation, the second switch Q2 is a PMOS transistor.

[0059] Specifically, when the second switch Q2 is a PMOS transistor, the anode of the third diode D7 is the first input terminal of the second switch circuit, the cathode of the third diode D7 is connected to the source of the second switch Q2 and the first terminal of the third resistor R5, the gate of the second switch Q2 is connected to the second terminal of the third resistor R5 and the first terminal of the fourth resistor R6, and the second terminal of the fourth resistor R6 is the second input terminal of the second switch circuit; the drain of the second switch Q2 is connected to the first terminal of the fourth diode D8, and the second terminal of the fourth diode D8 is connected to the control line.

[0060] In this embodiment, when the first switch Q1 is an NMOS transistor, the second switch Q2 is a PMOS transistor, and when the first switch Q1 is a PMOS transistor, the second switch Q2 is an NMOS transistor.

[0061] In one possible implementation, the first switch module includes a first relay K1;

[0062] The first end of the coil of the first relay K1 is connected to the neutral wire, and the second end of the coil of the first relay K1 is connected to the control line; the first contact of the switch in the first relay K1 is connected to the live wire of the AC power supply, and the second contact of the switch in the first relay K1 is connected to the first controlled device.

[0063] Specifically, when the coil of the first relay K1 is energized, the switch in the first relay K1 closes, so that the live wire supplies power to the first controlled device.

[0064] In one possible implementation, the first switching module further includes a fifth diode D1, a sixth diode D3, and a first filtering unit;

[0065] The first end of the fifth diode D1 and the first end of the first filter unit are respectively connected to the neutral wire of the AC power supply. The second end of the fifth diode D1 is respectively connected to the second end of the first filter unit, the second end of the coil of the first relay K1, and the first end of the sixth diode D3. The second end of the sixth diode D3 is connected to the control line.

[0066] In this embodiment, the first filter unit includes a first capacitor CD1 and a fifth resistor R1; and the first capacitor CD1 and the fifth resistor R1 are connected in series.

[0067] In one possible implementation, such as Figure 2 As shown, the second switch module includes a second relay K2;

[0068] The first end of the coil of the second relay K2 is connected to the control line, and the second end of the coil of the second relay K2 is grounded; the first contact of the switch in the second relay K2 is connected to the live wire of the AC power supply, and the second contact of the switch in the second relay K2 is connected to the second controlled device.

[0069] Specifically, when the coil of the second relay K2 is energized, the switch in the second relay K2 closes, allowing the live wire to supply power to the second controlled device.

[0070] In one possible implementation, the second switching module further includes a seventh diode D4, an eighth diode D2, and a second filtering unit;

[0071] The first end of the seventh diode D4 is connected to the control line, and the second end of the seventh diode D4 is connected to the first end of the second filter unit, the first end of the coil of the second relay K2, and the first end of the eighth diode D2, respectively; the second end of the eighth diode D2 and the second end of the second filter unit are both grounded.

[0072] In this embodiment, the second filter unit includes a second capacitor CD2 and a sixth resistor R2; and the second capacitor CD2 and the sixth resistor R2 are connected in series.

[0073] In this embodiment, when the first controlled device 1 needs to be turned on independently, the first control port 1 is pulled high to power on. When the sine wave of the N-line is at its positive half-axis, the first switching transistor Q1 is an N-channel MOS, satisfying the conduction condition. The current flows through the common ground (-N) to charge capacitor CD1, and then sequentially through the relay K1 coil 2-1, to the sixth diode D3, the second diode D5, the first switching transistor Q1, and the first diode D6, forming a circuit. This generates a voltage in the relay K1 coil, energizing the switch contacts 3 and 4 of K1, allowing the live wire (-L) to supply power to the first controlled device 1, initiating its operation. Because the second control port 2 is at a low level and not powered on at this time, regardless of the state of the N-line, the second switching transistor Q2 is not turned on, and the second relay K2 does not operate.

[0074] Similarly, when the second controlled device 2 needs to be turned on separately, a high-level second control signal is sent to the second control port 2. The second control port 2 is pulled high and powered on. When the sine wave of the N line is at the negative half-axis, the second switch Q2 is a P-channel MOS, which meets the conduction condition. The current flows through the second control port, through the third diode D7, the second switch Q2, the fourth diode D8, and the seventh diode D4 to charge CD2, and then through the coil 2-1 of the second relay K2, causing the coil voltage of the second relay K2 to be generated. This causes the second relay K2 to be energized and conducts, enabling the live wire -L to supply power to the second controlled device 2, and start its operation.

[0075] When two controlled devices need to be turned on at the same time, a first control signal can be sent to the first control port 1 and a second control signal can be sent to the second control port 2 at the same time. At this time, the upper and lower half axes of the sine wave work alternately, each controlling the corresponding first controlled device 1 and second controlled device 2 independently.

[0076] As can be seen from the above embodiments, this embodiment provides a circuit solution for single-line control of dual controlled devices. This solution can be designed when the existing wall space is insufficient or lacks the number of controllable devices. Traditional control structures use one control line to control one device loop. The wired control circuit provided in this embodiment can effectively utilize the current environmental limitations and significantly increase the number of controllable devices.

[0077] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A wire control circuit, characterized by, The application relates to a control system, which comprises a master control unit, a first control port, a second control port, a first switch module, a second switch module, a first controlled device and a second controlled device. The master control unit is connected with the first control port and the second control port respectively, and the first control port and the second control port are connected with the first switch module and the second switch module through a control line respectively; the first switch module is connected with the first controlled device; and the second switch module is connected with the second controlled device. The master control unit is used for sending a first control signal to the first control port and / or sending a second control signal to the second control port. The first control port is used for acquiring an alternating-current power signal; if the first control signal is monitored and the alternating-current power signal meets a first preset condition, the first switch module is turned on through the control line. The second control port is used for acquiring the alternating-current power signal; if the second control signal is monitored and the alternating-current power signal meets a second preset condition, the second switch module is turned on through the control line; and the first preset condition and the second preset condition are mutually exclusive. The first controlled device is turned on when the first switch module is turned on; and the second controlled device is turned on when the second switch module is turned on. The first control port comprises a first switch tube circuit; a first input end of the first switch tube circuit is connected with the master control unit; a second input end of the first switch tube circuit is connected with a zero line of an alternating-current power supply; and the zero line is grounded. The second control port comprises a second switch tube circuit; a first input end of the second switch tube circuit is connected with the master control unit; and a second input end of the second switch tube circuit is grounded. The first switch tube circuit comprises a first switch tube, a first resistor, a second resistor, a first diode and a second diode. A first end of the first diode is a first input end of the first switch tube circuit; a second end of the first diode is connected with a first end of the first switch tube and a first end of the first resistor respectively; a second end of the first switch tube is connected with a second end of the first resistor and a first end of the second resistor respectively; a second end of the second resistor is a second input end of the first switch tube circuit; a third end of the first switch tube is connected with a first end of the second diode; and a second end of the second diode is connected with the control line. The second switch tube circuit comprises a second switch tube, a third resistor, a fourth resistor, a third diode and a fourth diode. A first end of the third diode is a first input end of the second switch tube circuit; a second end of the third diode is connected with a third end of the second switch tube and a first end of the third resistor respectively; a second end of the second switch tube is connected with a second end of the third resistor and a first end of the fourth resistor respectively; a second end of the fourth resistor is a second input end of the second switch tube circuit; a first end of the second switch tube is connected with a first end of the fourth diode; and a second end of the fourth diode is connected with the control line. ​ 2. The by-wire circuit of claim 1, wherein, The first control signal and the second control signal are high-level signals; The first switch tube circuit is turned on when the high-level signal and a first zero line signal are connected thereto; and the second switch tube circuit is turned on when the high-level signal and a second zero line signal are connected thereto. When the first zero line signal is a positive zero line signal, the second zero line signal is a negative zero line signal; and when the first zero line signal is a negative zero line signal, the second zero line signal is a positive zero line signal.

3. The by-wire circuit of claim 1, wherein, The first switch tube is an NMOS tube.

4. The by-wire circuit of claim 1, wherein, The second switch tube is a PMOS tube.

5. The by-wire circuit of claim 1, wherein, The first switch module comprises a first relay. A first end of a coil of the first relay is connected to a zero line of an alternating current power supply, and a second end of the coil of the first relay is connected to the control line; a first contact of a switch in the first relay is connected to a live line of the alternating current power supply, and a second contact of the switch in the first relay is connected to the first controlled device.

6. The by-wire circuit of claim 5, wherein, The first switch module further comprises a fifth diode, a sixth diode and a first filter unit. A first end of the fifth diode and a first end of the first filter unit are respectively connected to the zero line of the alternating current power supply, a second end of the fifth diode is connected to a second end of the first filter unit, a second end of the coil of the first relay and a first end of the sixth diode, and a second end of the sixth diode is connected to the control line.

7. The by-wire circuitry of claim 1, wherein, The second switch module comprises a second relay. A first end of a coil of the second relay is connected to the control line, and a second end of the coil of the second relay is grounded; a first contact of a switch in the second relay is connected to a live line of an alternating current power supply, and a second contact of the switch in the second relay is connected to the second controlled device.

8. The drive-by-wire circuit of claim 7, wherein, The second switch module further comprises a seventh diode, an eighth diode and a second filter unit. A first end of the seventh diode is connected to the control line, a second end of the seventh diode is connected to a first end of the second filter unit, a first end of the coil of the second relay and a first end of the eighth diode, and a second end of the eighth diode and a second end of the second filter unit are grounded.

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