TW201338625A - Luminance control system - Google Patents

Abstract

A luminance control system comprises a main switch, a relay circuit and a control circuit. The main switch is used to couple to an alternating current power supply and to ground. The relay circuit comprises N relay switches, N first control units, a first switch, a second switch and a second control unit. The N relay switches are used to couple to a load. The N first control units are used to control on and off of the N relay switches. The first switch and the second switch are used to couple the N relay switches dividedly to the control mode and the manual mode (main switch). The control circuit is used to control the N first control units. The control circuit is coupled to the alternating current power supply, ground and N first control units for outputting a direct current voltage or an alternating current voltage. N is a positive integer.

Description

Lighting control system

The invention relates to a lighting control system, in particular to a lighting control system with an external single-switch.

Lighting control systems are now widely used in everyday life, whether in the home or in public, such as through the light switch on the wall to control the lights on the ceiling. The two-wire control system is a common lighting control system, but since the electronic components of the general two-wire control system and the relay components used for power output have different service life, the two-wire control system is often only in the event of a fault. Some components or parts of the structure are damaged, not all of them are damaged.

When designing lighting control systems, most manufacturers of lighting control systems use self-developed communication protocols and logic grammars. Therefore, when only some components or parts of the lighting control system are damaged, users often stop production or replace them. Agents are unable to perform partial repairs, resulting in the need to replace the entire lighting control system, which is costly and inconveniences due to the replacement of the entire lighting control system.

In addition, considering the wiring cost of large-area office lighting, if the office with a high ceiling is subjected to manual operation and maintenance of some components of the lighting control system located at the ceiling, it is often quite difficult and quite Danger. For example, when the lighting control system fails to perform manual operation, it is easy for a person to directly touch the inside of the lighting control system to cause danger.

If the lighting control system is designed in combination with more complicated air conditioning equipment, the traditional two-wire controller has its logic design limitations, and other control systems must be added. The initial cost and future maintenance are all A big challenge.

One embodiment of the present invention relates to a lighting control system including a single cut switch, a relay circuit, and a control circuit. The single-cut switch includes a first input end for coupling to an AC power source and a second input end for coupling to a ground end. The relay circuit includes N relay switches, N first control units, a first switch, a second switch, and a second control unit, and the first switch of each of the N relay switches The end is used to couple a load. The N first control units are configured to respectively control whether the N relay switches are turned on when the single-cut switch is turned off, and the first open relationship is used to enable the N switch when the single-cut switch is turned on. The relay switches are respectively switched to the control circuit mode or electrically connected to the single-cut switch. The second control unit is coupled to the single-cut switch, and is configured to turn on the first switch when the single-cut switch is turned on to enable the first switch to switch the N relay switches to be electrically connected to the single-cut switch And for switching the second switch. The control circuit is configured to control the N first control units, and the control circuit includes N output ends, a first input end, a second input end, a power output end, and a set of enabling states, the N The outputs are respectively coupled to the N first control units. The first input end is configured to be coupled to the AC power source, and the second input end is configured to be coupled to the ground end. The power output is coupled to the N first control units for outputting a DC or AC voltage, and the set of enabling switches are coupled to the second switch for determining whether the second switch is conductive or not. Controlling whether the control circuit controls the relay circuit. The N system is a positive integer.

Another embodiment of the present invention is directed to a control method for a lighting control system, the lighting control system including a single-cut switch and a relay circuit, the relay circuit including N relay switches and a first switch, The N relay open relationships are coupled to N loads. The method includes turning on the single-cut switch, turning on the first switch, and switching the N relay switches to electrically connect to the single-cut switch and turn on the N loads. The N system is a positive integer.

Another embodiment of the present invention is directed to a method of controlling a lighting control system including a single cut switch, a relay circuit, and a control circuit, the relay circuit including a second switch. The method includes turning off the single cut switch, switching the second switch, and controlling the relay circuit using the control circuit.

Through the device and method provided by the invention, the user can immediately control the lighting control system through the single-cut switch when the control circuit in the lighting control system is faulty, and when the single-cut switch fails, only a single pair is required. The switch is repaired or replaced without the need to repair or replace the entire lighting control system. In addition, since the single-cut switch can be set to be externally connected to the lighting control system, it is dangerous to avoid direct touch of the interior of the lighting control system when the lighting control system is repaired or inspected.

Certain terms are used throughout the description and following claims to refer to particular elements. It should be understood by those of ordinary skill in the art that manufacturers may refer to the same elements by different nouns. The scope of this specification and the subsequent patent application do not use the difference of the names as the means for distinguishing the elements, but the differences in the functions of the elements as the basis for the distinction. The term "including" as used throughout the specification and subsequent claims is an open term and should be interpreted as "including but not limited to". In addition, the terms "coupled" and "electrically connected" are used herein to include any direct and indirect electrical connection. Therefore, if the first device is coupled to the second device, or the first device is electrically connected to the second device, it means that the first device can be directly connected to the second device, or through other devices or connecting means. Connected to the second device indirectly.

The following is a detailed description of the preferred embodiment of the present invention in accordance with the present invention, but the embodiments are not intended to limit the scope of the present invention.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a lighting control system 100 according to a first embodiment of the present invention. As shown in FIG. 1, the lighting control system 100 includes a single cut switch 10, a relay circuit 20, and a control circuit 30. The single-cut switch 10 includes a first input terminal 12 for coupling the AC power source 40 and a second input terminal 14 for coupling to the ground terminal VSS. The relay circuit 20 includes N relay switches R1 to RN, N first control units S1 to SN, a second control unit 25, a first switch RS-1, and a second switch RS-2. The first end of each of the relay switches R1 to RN is used to couple the load 50. The N first control units S1 to SN are used to control whether each of the relay switches R1 to RN is turned on when the single-cut switch 10 is turned off. The first switch RS-1 is configured to switch the relay switches R1 to RN to be electrically connected to the single-cut switch 10 when the single-cut switch 10 is turned on. The second control unit 25 is coupled to the single-cut switch 10 for turning on the first switch RS-1 when the single-cut switch 10 is turned on, so that the first switch RS-1 switches the relay switches R1 to RN to The switch 10 is electrically connected, and the second switch RS-2 is switched to be turned on, and the operation state of the single-cut switch 10 is returned to the control circuit 30.

The control circuit 30 is for controlling the first control units S1 to SN. The control circuit 30 includes N output terminals OUT1 to OUTN, a first control input terminal 32, a second control input terminal 34, a power output terminal 36, and an enabler 38. And the external terminal 39. The N output terminals OUT1 to OUTN are respectively coupled to the first control units S1 to SN, the first control input terminal 32 is coupled to the AC power source 40, and the second input terminal is coupled to the ground terminal VSS, and the power output end. The 36 series is coupled to the N first control units S1 to SN for outputting a DC or AC voltage, and the enabling unit 38 is coupled to the second switch RS-2 for conducting according to whether the second switch RS-2 is turned on. Whether or not the control circuit 30 controls the relay circuit 20. In the embodiment of the present invention, N is a positive integer, and the size of N can be adjusted according to requirements, and is not limited.

The external terminal 39 of the control circuit 30 is coupled to the main console 80 for operating the control circuit 30 through the main console 80. The manner in which the main control station 80 controls the control circuit 30 is a digital communication method. For example, it may be a digital light switch which is generally commonly installed on a wall, or may be a computer device. In addition, the control circuit 30 includes a memory 90 in which a control program of the control circuit 30 is stored. In addition, the control circuit 30 can be a programmable logic controller or a direct digital controller.

The load 50 can be a variety of light-emitting elements, such as a fluorescent tube, an incandescent light bulb, and an LED light, without limiting the light-emitting elements. Any changes and modifications to the embodiments of the present invention are intended to be within the scope of the present invention. In this embodiment, corresponding to the relay switches R1 to RN, the load 50 includes N lamps 50_1 to 50_N, which are respectively coupled to the relay switches R1 to RN, but the present embodiment is for convenience of description, and the present invention is not The number or structure of components included in the load 50 is limited.

In the illumination control system 100 of the present embodiment, the load 50 can be turned on or off through the first control units S1 to SN, or can be turned on or off through the single-cut switch 10. For example, in normal normal use, the lighting control system 100 operates the first control units S1 through SN through the control circuit 30 to control the opening or closing of the relay switches R1 through RN. When a partial component failure or damage occurs in the control circuit 30, even if the entire control circuit 30 is completely unusable, the opening/closing of the relay switches R1 to RN can be controlled by operating the single-cut switch 10. Therefore, even in the event of a failure of the control circuit 30, the lighting control system 100 can operate normally. In addition, the single-cut switch 10 may be disposed inside the lighting control system 100 or may be externally connected to the lighting control system 100. In the first embodiment, the single cut switch 10 is configured to be external to the lighting control system 100 so that the user can conveniently control the lighting control system 100 by operating the single cut switch 10.

When the single-cut switch 10 is turned on, both the first switch RS-1 and the second switch RS-2 are turned on. After the first switch RS-1 is turned on, all the relay switches R1 to RN are switched to be electrically connected to the single-cut switch 10, and at this time, the lamps 50_1 to 50_N are turned on in the load 50. After the second switch RS-2 is turned on, the enable signal 38 is sent back to the control circuit 30. After the enable signal 38 is received, the control circuit 30 can learn the second switch RS according to the feedback signal. 2 is turned on by the single-cut switch 10, and the control circuit 30 terminates the control of the relay circuit 20. In other words, if the control circuit 30 knows that the second switch RS-2 is off according to the feedback signal, the illumination control system 100 is configured to use the control circuit 30 to control the relay circuit 20; if the control circuit 30 is based on the feedback signal Knowing that the second switch RS-2 is on, the lighting control system 100 is configured to control the relay circuit 20 without using the control circuit 30, while continuing to control the relay circuit 20 by the single-cut switch 10. In addition, the user can know through the main control station 80 that the single-cut switch 10 is turned on or off, so when the control circuit 30 is repaired to a normal working state by the fault state, if the single-cut switch 10 is still open, use The master station 80 can be reminded to remember to turn off the single-cut switch 10 to interrupt the electrical connection of the relay switches R1 to RN and the single-cut switch 10.

Since the single-cut switch 10 can be externally connected to the illumination control system 100 independently of other components in the illumination control system 100, the illumination control system 100 of the present invention is extremely diversified in practical applications, for example, the illumination control system 100 can be matched with general versatility. A programmable controller or other controller such as a direct digital controller (DDC) commonly used in building automation systems, and when the single-cut switch 10 fails, it is only necessary to separately repair the single-cut switch 10 or Replacement, the normal operation of the lighting control system 100 can be resumed without the need to repair or replace the entire lighting control system 100.

Please refer to FIG. 2, which is a schematic diagram of a lighting control system 200 according to a second embodiment of the present invention. As shown in FIG. 2, the illumination control system 200 is different from the illumination control system 100 in that the illumination control system 200 further includes a low pass filter 60 for coupling to the AC power source 40 and the control circuit 30. Between the first control input 32, the input power received from the AC power source 40 is filtered.

Please refer to FIG. 3, which is a schematic diagram of a lighting control system 300 according to a third embodiment of the present invention. As shown in FIG. 3, the lighting control system 300 differs from the lighting control system 100 in that the single cut switch 10 of the lighting control system 300 is disposed inside the lighting control system 300. The lighting control system 300 is suitable for situations where maintenance personnel are relatively easy to maintain, such as lighting control systems installed in offices with lower ceilings, or preventing misoperations by non-maintenance personnel.

Please refer to FIG. 4, which is a schematic diagram of a lighting control system 400 according to a fourth embodiment of the present invention. As shown in FIG. 4, the illumination control system 400 is different from the illumination control system 300 in that the illumination control system 400 further includes a low pass filter 60 for coupling to the AC power source 40 and the control circuit 30. The first control input 32 is used to filter the lighting control system 400.

In summary, through the apparatus and method provided by the embodiments of the present invention, the user can immediately control the lighting control system 100 through the single-cut switch 10 when the control circuit 30 in the lighting control system 100 fails. When the single-cut switch 10 fails, it is only necessary to separately repair or replace the single-cut switch 10 without repairing or replacing the entire lighting control system 100. In addition, since the single-cut switch 10 can be disposed to be externally connected to the lighting control system 100, when the lighting control system 100 is repaired or inspected, it is possible to avoid danger when a person directly touches the inside of the lighting control system 100.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

10. . . Single cut switch

12. . . First input

14. . . Second input

20. . . Relay circuit

25. . . Second control unit

30. . . Control circuit

32. . . First control input

34. . . Second control input

36. . . Power output

38. . . Enable 埠

39. . . External terminal

40. . . AC power

50. . . load

50_1 to 50_N. . . Lamp

60. . . Low pass filter

80. . . Main console

90. . . Memory

100, 200, 300, 400. . . Lighting control system

OUT1 to OUTN. . . Output

R1 to RN. . . Relay switch

RS-1. . . First switch

RS-2. . . Second switch

S1 to SN. . . First control unit

VSS. . . Ground end

Fig. 1 is a schematic view showing a lighting control system of a first embodiment of the present invention.

Figure 2 is a schematic view of a lighting control system of a second embodiment of the present invention.

Figure 3 is a schematic view of a lighting control system of a third embodiment of the present invention.

Figure 4 is a schematic view of a lighting control system of a fourth embodiment of the present invention.

10. . . Single cut switch

12. . . First input

14. . . Second input

20. . . Relay circuit

25. . . Second control unit

30. . . Control circuit

32. . . First control input

34. . . Second control input

36. . . Power output

38. . . Enable 埠

39. . . External terminal

40. . . AC power

50. . . load

50_1 to 50_N. . . Lamp

80. . . Main console

90. . . Memory

100, 200, 300, 400. . . Lighting control system

OUT1 to OUTN. . . Output

R1 to RN. . . Relay switch

RS-1. . . First switch

RS-2. . . Second switch

S1 to SN. . . First control unit

VSS. . . Ground end

Claims (11)

A lighting control system comprising: a single-cut switch comprising: a first input end for coupling to an AC power source; and a second input end for coupling to a ground end; a relay circuit comprising : N relay switches, the first end of each of the relay switches is coupled to a load; and the N first control units are configured to respectively control whether the N relay switches are closed when the single-cut switch is turned off a first switch (Rs-1) for switching the N relay switches to be electrically connected to the single-cut switch when the single-cut switch is turned on; a second switch (Rs-2); a second control unit (Rs) coupled to the single-cut switch for turning on the first switch (Rs-1) when the single-cut switch is turned on to enable the first switch (Rs-1) to N relay switches are electrically connected to the single-cut switch, and switch the second switch (Rs-2); and a control circuit for controlling the N first control units, the control circuit includes: N The output ends are respectively coupled to the N first control units; a first input end is coupled to the AC power source; and a second input end is coupled to the ground end; The power output end is coupled to the N first control units for outputting a DC or AC voltage; and a set of enabling ports coupled to the second switch (Rs-2) for Whether the switch (Rs-2) is turned on to control whether the control circuit controls the relay circuit; wherein N is a positive integer. The lighting control system of claim 1, further comprising a low pass filter coupled between the alternating current power source and the first input end of the control circuit. The lighting control system of claim 1, wherein the control circuit is a programmable logic controller or a direct digital controller. The lighting control system of claim 1, wherein the control circuit further comprises an external terminal for coupling to a main console. The lighting control system of claim 1, wherein the control circuit further comprises a memory in which a control program of the control circuit is stored. A control method for a lighting control system, the lighting control system comprising a single-cut switch and a relay circuit, the relay circuit comprising N relay switches and a first switch (Rs-1), the N The method is coupled to the N loads, the method includes: turning on the single-cut switch; turning on the first switch (Rs-1); switching the N relay switches to be electrically connected to the single-cut switch; The N loads; wherein N is a positive integer. The method of claim 6, wherein the lighting control system further comprises a control circuit, the relay circuit further comprising a second switch (Rs-2), the method further comprising: switching the second switch (Rs- 2); and stopping the control circuit to control the relay circuit. The method of claim 7, further comprising: turning off the single-cut switch; switching the second switch (Rs-2); and controlling the relay circuit using the control circuit. The method of claim 8, further comprising: stopping the turning on the first switch (Rs-1); and cutting off the electrical connection between the N relay switches and the single-cut switch. A control method for a lighting control system, the lighting control system comprising a single-cut switch, a relay circuit and a control circuit, the relay circuit comprising a second switch (Rs-2), the method comprising: turning off the a single-cut switch; switching the second switch (Rs-2); and controlling the relay circuit using the control circuit. The method of claim 10, wherein the relay circuit further comprises N relay switches and a first switch (Rs-1), the method further comprising: stopping turning on the first switch (Rs-1); And cutting off the electrical connection between the N relay switches and the single-cut switch; wherein N is a positive integer.