JP2016536747A - Control method for multiple lamps - Google Patents

Abstract

A method for controlling a plurality of lamps is provided. About the control method of a some lamp, it is applied to a lighting system. The lighting system includes a set of input interface and signal transmission device, a plurality of sets of signal reception devices, a driving device, and a lamp. The method includes a step of detecting a state of an input interface by a signal transmission device, a step of transmitting a corresponding signal based on a state of detection of the signal transmission device, and receiving the signal by each signal reception device. And the waveform of the AC power supply is detected, and each signal receiving device transmits a corresponding control signal to each driving device based on the signal at any one reference point in the cycle of the waveform of the AC power supply. A step of performing the control. As a result, a plurality of lamps are controlled at the same time point and are simultaneously operated.

Description

The present invention relates to a method for controlling a plurality of lamps.

A conventional lighting system for a plurality of lamps includes an input interface installed at a control end, a signal transmission device, a plurality of signal receiving devices installed at a load end, a plurality of driving devices, and a plurality of lamps. . The input interface is electrically connected to the signal transmitting device, the signal receiving devices are connected to the signal transmitting device by signals, and the signal receiving devices are electrically connected to the driving device and the lamp in turn. Is done. When a user operates and controls a lamp using the input interface, a signal corresponding to the state of the input interface is transmitted to the signal receiving device by the signal transmitting device, and each of the signal devices transmits the signal. The corresponding control signal is transmitted to each of the driving devices based on the above, and the lamps are controlled. This achieves the purpose of controlling a plurality of lamps.

However, in actual use, since these signal receiving devices are composed of electronic members, the internal components of the signal receiving device may be affected by factors such as differences in the manufacturing process of the electronic members themselves, temperature changes, voltage instability, noise interference, etc. An error in time calculation occurs due to a deviation in the order of signals, and an error is generated at the time point at which the signal receiving device transmits the control signal, and the lamps may operate at different time points. . In particular, when the driving device is controlled by the signal receiving device to repeatedly generate changes in the light emitted by the lamps, the longer the repeated change time or the greater the number of times, the more the lamps The brightness difference between the lamps becomes large, and the lamps cannot maintain the same brightness.

Therefore, the present inventor considered that the above-mentioned drawbacks can be improved, and as a result of intensive studies, the present inventor has arrived at a proposal of the present invention that effectively improves the above-described problems by rational design.

The present invention has been made in view of such conventional problems. In order to solve the above-mentioned problems, it is a main object of the present invention to provide a control method for a plurality of lamps that controls a plurality of lamps at the same time point and operates them simultaneously.

In order to solve the above-described problems and achieve the object, a control method for a plurality of lamps according to the present invention is applied to a lighting system. The lighting system includes an input interface, a signal transmission device, a plurality of signal reception devices, a plurality of driving devices, and a plurality of lamps. The signal transmission device is electrically connected to the input interface, the signal of the signal transmission device is connected to the signal reception device, the signal reception device is electrically connected to an AC power source, and each of the signals The receiving device is electrically connected to each of the driving devices and the lamps in turn. The method
Step A in which the state of the input interface is detected by the signal transmission device;
The signal transmission device transmits a corresponding signal based on the state detected in step A, and
The signal is received by each of the signal receiving devices and the waveform of the AC power source is detected, and each of the signal receiving devices is converted into the signal at any one reference point in the period of the waveform of the AC power source. And a step C in which the corresponding control signal is transmitted to each of the driving devices to control each of the lamps, and the reference point of each cycle of the AC power supply is the same.

Therefore, according to the control method of the present invention, it is possible to effectively avoid a situation in which a plurality of lamps are controlled at the same time point and are operated at the same time, and the brightness of the lamps does not match.

It is a block diagram which shows the illumination system applied to 1st Embodiment of this invention. FIG. 6 is a waveform diagram for generating a delayed conduction angle at the trailing edge of a half sine wave when a switch is turned on. FIG. 6 is a waveform diagram for generating a delayed conduction angle at the trailing edge of a half sine wave when a switch is turned on. It is a flowchart which shows the illumination system by 1st Embodiment of this invention. It is a block diagram which shows the illumination system applied to 2nd Embodiment of this invention.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments described below.

Embodiment

(First embodiment)
FIG. 1 is a configuration diagram showing a lighting system 1 according to a first embodiment of the present invention, and a plurality of lamps taking an input interface 10, a signal transmission device 12, a plurality of driving devices 14, and a light emitting diode module 16 as an example. And a plurality of signal receiving devices 18. Below, the said illumination system 1 is demonstrated with reference to the control method of the some lamp shown in FIG.

The input interface 10 includes a changeover switch 102 and a switch 104. The switch 104 is a normally closed pressing switch, and the switch 104 is short-circuited when pressed by a user.

The signal transmission device 12 is electrically connected to the AC power source S by the changeover switch 102, and the signal transmission device 12 is electrically connected to the switch 104. The changeover switch 102 is used to control conduction or interruption of power supplied to the signal transmission device 12. When the state of the switch 104 is detected by the signal transmission device 12 and the switch 104 is pressed and turned on, the waveform of the AC power source S is modified by the signal transmission device 12, and the waveform of the AC power source S is changed. Is output after a delayed conduction angle occurs in the positive half-wave period. When the switch 104 is not pressed, the switch 104 automatically returns to an open circuit state, and the signal transmission device 12 does not change the waveform of the AC power source S, that is, the signal transmission device 12. The delayed conduction angle does not exist in the waveform output from. The angle of the delayed conduction angle is preferably equal to or smaller than 90 degrees, the harmonics of the AC power source S are reduced, and the degree of power factor reduction is reduced. In the state where the switch 104 is pressed, an electric signal is constituted by the waveform of the AC power source S having the delayed conduction angle and transmitted.

In the present embodiment, when the switch 104 is pressed (see waveform 1 in FIG. 2A), the waveform of the AC power source S is modified by the signal transmission device 12, and the positive half-wave period of the waveform of the output voltage is changed. A delayed conduction angle occurs at the trailing edge (see waveform 2 in FIG. 2A). Actually, the delay conduction angle is designed to occur at the leading edge of the positive half-wave period shown in FIG. 2B, and of course, the leading or trailing edge of the negative half-wave, or the period of the positive and negative half-waves. Even if it is designed so that a delayed conduction angle is generated at the front edge or the rear edge, the switch 104 is similarly identified by being pressed.

The drive devices 14 are both electrically connected to the signal transmission device 12 and the AC power source S, and the light emitting diode modules 16 are electrically connected to the drive devices 14, respectively. Has a plurality of light emitting diodes, receives electric energy output from the driving device 14 to generate light, and provides it as illumination. The electric energy output from the signal transmission device 12 is received by each of the driving devices 14 and is converted into electric energy required for the light emitting diode modules 16, and the driving devices 14 are controlled to control the light emitting diodes. The on / off state and brightness of the module 16 are modified. In the present embodiment, each of the driving devices 14 is designed on the basis of a pulse width modulation (PWM) circuit, and the frequency bandwidth of the electric signal transmitted to each of the light emitting diode modules 16 by the pulse width modulation method. Is adjusted. Of course, in actual implementation, each of the driving devices 14 may be designed as a circuit that adjusts the magnitude of the voltage or the electrical energy.

Each of the signal receiving devices 18 includes a phase angle detection circuit 182 and a processor 184. Each of the phase angle detection circuits 182 is electrically connected to each of the signal transmission devices 12, and is used for detection of a waveform of electric energy output from the signal transmission device 12, and detection of an angle of the delayed conduction angle. The detection result is transmitted to the processor 184.

A plurality of control modes are incorporated in each of the processors 184, and the control modes include a full illumination mode, a default illumination mode, and a brightness adjustment mode, and each of the driving devices according to any one control mode. 14 is controlled, each light emitting diode module 16 is driven to emit light, and the state of the switch 104 is determined based on the result of the delayed conduction angle detected by the phase angle detection circuit 182. By determining, the control mode is switched. The processors 184 control the connected driving devices 14 in synchronism with each other at the same time point, and each processor 184 uses the waveform detected by each phase angle detection circuit 182 so that each processor 184 has the AC power source S. The reference point is acquired from the period of the AC power source S and used for synchronization. The reference point of each cycle of the AC power source S is the same. In this embodiment, the first zero crossing in each cycle is used as the reference point, and each processor 184 transmits a corresponding control signal to each driving device 14 at the reference point, and each light emitting diode. The operation of the module 16 is controlled, for example, ON / OFF and luminance modification are controlled. Actually, the effect of synchronization may be similarly achieved using the peak value in the waveform as a reference point.

The operation of the control mode by the processor 184 and the driving device 14 will be described below. In the all-illumination mode, the processor 184 transmits a control signal at the reference point in the cycle of the waveform of the AC power source S to control the driving device 14, and drives the light emitting diode module 16 to output a rated capacity. Generate light of maximum brightness value below.

In the default illumination mode, the processor 184 transmits a control signal at the reference point in the cycle of the waveform of the AC power source S, controls the driving device 14 to drive the light emitting diode module 16, Generate light of luminance value. According to this embodiment, the initial setting of the predetermined luminance value is half of the maximum luminance value, and the predetermined luminance value is updated in the luminance adjustment mode. In the brightness adjustment mode, the driving device 14 is controlled by the processor 184 to drive the light emitting diode module 16, and light emitted from the first brightness value and the second brightness value is repeatedly changed. The processor 184 controls the driving device 14 at the reference point in each cycle of the AC power source S to drive the light emitting diode module 16 to increase or decrease the luminance difference value of light emitted. When the state of the switch 104 is determined and modified by the processor 184, the control of the change in luminance is stopped, the luminance value of the light emitted by the light emitting diode module 16 is recorded, and the recorded luminance The value replaces the original default brightness value of the default illumination mode, and the light emitting diode module 16 is driven to generate light having the updated default brightness value. According to this embodiment, the first luminance value is a maximum luminance value, and the second luminance value is a minimum luminance value. For this reason, in the brightness adjustment mode, the light emission of each light emitting diode module 16 changes between the maximum brightness and the minimum brightness.

In practice, the light generated when the light emitting diode module 16 is driven is increased or decreased starting from a third luminance value between the first luminance value and the second luminance value. It changes repeatedly between two luminance values. The third luminance value is set to one half of the maximum luminance value. Thus, when the mode is switched to the luminance adjustment mode, first, light is emitted at an intermediate luminance, thereby avoiding a situation where the user is dazzled because the change in luminance is too large. In addition, it is good also as a reference point for acquiring two zero crossing points or two peak values in each period of AC power supply S, and increasing or decreasing a luminance difference value.

When the changeover switch 102 is turned on and the AC power source S is connected, the processor 184 is operated in the full illumination mode by default, and the light emission of the light emitting diode module 16 is maximized.

While the switch 104 is pressed, the delayed conduction angle exists in each period in the waveform of the electric energy output from the signal transmission device 12. For this reason, the processor calculates a pressing time when the switch is pressed based on the number of periods having the delayed conduction angle, and the pressing time is a predetermined time (with the length of the pressing time as a command in the electric signal). If it is shorter than 1.2 seconds in this embodiment, it is defined as a switching command. When the pressing time is longer than the predetermined time, it is defined as a brightness adjustment command.

When the processor 184 determines that the electrical signal detected by the phase angle detection circuit 182 has the switching command, that is, the preset illumination mode is switched at the reference point in the waveform cycle of the AC power source S. When the switching command is received once again, the processor 184 controls each driving device 14 at a reference point in the waveform cycle of the AC power source S to cut off the electric energy supplied to each light emitting diode module 16. Each light emitting diode module 16 is turned off. When a switching command is received once again, the mode is switched to the full illumination mode at the reference point in the waveform cycle of the AC power source S, thus switching in a loop.

When the processor 184 determines that the electrical signal has the brightness adjustment command, the processor 184 is switched to the brightness adjustment mode at a reference point in the waveform cycle of the AC power supply S, and the setting is changed by the user. Default brightness value. In the brightness adjustment mode, when the processor 184 determines that the state of the switch 104 has been changed (defined as a stop command), the control of the change in brightness is immediately stopped.

With the above structure, when the lighting system 1 is applied to a building, the input interface 10 and the signal transmission device 12 are installed on the wall surface of the building (that is, installed on the control end), and The set of signal receiving device 18, driving device 14, and light emitting diode module 16 are installed on the wall or ceiling of the building (that is, installed at the load end). For this reason, the signal transmission device 12 and each signal reception device 18 can be connected only by using two electric wires connected to the AC power source S, in other words, using the wiring originally possessed by the building. Thus, a waveform corresponding to the state of the switch 104 is transmitted to each signal receiving device 18.

The state of the switch 104 is determined by each of the signal receiving devices 18 and a corresponding control signal is transmitted to each of the driving devices 14 at the same time point (that is, a reference point in the waveform cycle of the AC power supply S). Thus, each light emitting diode module 16 is controlled. Thereby, in the control of a plurality of lamps, a synchronous control effect is effectively achieved. In particular, with respect to the brightness adjustment mode, when there is no synchronization mechanism, the longer the time or the number of times that the light emitted from the light emitting diode modules 16 changes repeatedly, the higher the brightness between the light emitting diode modules 16 is. Therefore, by using the reference point in the cycle of the AC power supply S as a synchronization, the luminance of the light emitting diode modules 16 is effectively maintained so as to match.

Actually, each of the light emitting diode modules 16 includes a plurality of first light emitting diodes and a plurality of second light emitting diodes, and the color of light of the first light emitting diodes is different from the color of light of the second light emitting diodes. Is different. For example, when the light color of the first light emitting diode is a cold color system (white light, blue light, etc.), the light color of the second light emitting diode is a warm color system (yellow light, red light, etc.). .

Each drive unit 14 individually controls the luminance ratio of the first light emitting diode and the second light emitting diode. The above-mentioned luminance ratio refers to the ratio of the luminance value of the light emitted by the first light emitting diode and the second light emitting diode to the maximum luminance value or the predetermined luminance value, and these first light emitting diode and second light emitting diode. The color temperature of the light emitted from each light emitting diode module 16 is adjusted using a combination of the luminance ratios of the diodes.

In the control mode of the processor 184, the all-illumination mode includes first luminance ratio data, and the first luminance ratio data includes the first light-emitting diode and the second light-emitting diode in the total illumination mode. The luminance ratio is recorded. The predetermined illumination mode includes second luminance ratio data, and the second luminance ratio data records the luminance ratio of the first light emitting diode and the second light emitting diode in the predetermined illumination mode.

The control mode of the processor 184 further includes a chromaticity adjustment mode, and the adjustment of the first ratio data or the second ratio data is performed. When the processor 184 is operated in the full illumination mode or the default illumination mode, a chromaticity adjustment command is defined when the user continuously presses the switch 104 for a predetermined time (4 seconds in this embodiment) or longer. When the processor 184 determines that the electrical signal has a chromaticity adjustment command, the processor is switched to the chromaticity adjustment mode at the reference point of the waveform cycle of the AC power supply S.

In the chromaticity adjustment mode, each of the driving devices 14 is controlled to drive each of the light emitting diode modules 16 to emit light, and the luminance value (that is, the maximum luminance value or the predetermined luminance value) is not changed. The luminance ratio of the first light emitting diode and the second light emitting diode of each of the light emitting diode modules 16 is repetitively modified, and the luminance ratio is changed at a reference point in each cycle of the AC power source S. When the difference value is increased or decreased and the processor 184 determines that the state of the switch 104 has been modified, the control of the change in the luminance ratio of the first light emitting diode and the second light emitting diode is stopped. The luminance ratio of the first light emitting diode and the second light emitting diode is recorded. Further, the original first luminance ratio data of the all illumination modes is replaced by the recorded luminance ratio, or the original second luminance ratio data of the predetermined illumination mode is replaced, and these first luminance The light emitting diode and the second light emitting diode are driven to generate light having the updated luminance ratio. Using a reference point in the cycle of the AC power source S, a difference in the ratio of luminance generated between the light emitting diode modules 16 is similarly avoided.

In the above-described embodiment, the state corresponding to the input interface 10 is transmitted using the waveform of the AC power source S as an electrical signal. In the following, another embodiment is further provided and synchronized in the same manner as in the first embodiment. Has a control effect.

(Second Embodiment)
FIG. 4 is a block diagram showing an illumination system 2 of a control method for a plurality of lamps according to a second embodiment of the present invention. It has a structure similar to the first preferred embodiment, and includes an input interface 20, a signal transmission device 22, a plurality of driving devices 24, a plurality of lamps such as a fluorescent lamp 26, and a plurality of signal receiving devices 28. Is provided.

The input interface 20 includes a switch 202, and the signal transmission device 22 includes a controller 222 and a wireless signal transmission unit 224. A state of the switch 202 is detected by the controller 222, and a radio signal having a command is generated based on the state of the switch, and then transmitted through the radio signal transmission unit 224. The command in the radio signal is a switching command, a brightness adjustment command, or a stop command.

These driving devices 24 are both electrically connected to an AC power source S and individually connected to the fluorescent lamp 26. In the present embodiment, each of the driving devices 24 is a dimming ballast, and the electric energy supplied to the fluorescent lamps 26 under the control of each of the driving devices 24 is changed, so that the luminance or on-state of the fluorescent lamps 26 is changed. And off-state adjustments are made.

Each of the signal receiving devices 28 includes a wireless signal receiving unit 282, a processor 284, and a waveform detection circuit 286, and each of the wireless signal receiving units 282 has received the wireless signal transmitted from the signal transmitting device 22. Later it is sent to the processor 284. The waveform detection circuit 286 is electrically connected to the AC power source S, is used to detect the waveform of the AC power source S, and the detection result is transmitted to each processor 284. The period of the AC power source S is acquired correspondingly by each processor 284, and the reference point acquired from the period of the AC power source S is used for synchronization.

Each of the processors 284 is electrically connected to each of the driving devices 24, and each of the processors 284 similarly incorporates a plurality of control modes, including a full lighting mode, a default lighting mode, and a brightness adjustment mode, The principle of each control mode is the same as in the first embodiment. The only difference is that the drive unit 24 controlled by the processor 284 is different, and will not be described in detail. Similarly, each of the processors 284 causes a control signal to be transmitted to each of the driving devices 24 at a reference point in the cycle of the waveform of the AC power supply, whereby the operation of the fluorescent lamp 26 is controlled simultaneously, and these It is effectively ensured that the fluorescent lamps 26 have the same brightness.

In conclusion, in the method for controlling a plurality of lamps according to the present invention, all the signal receiving devices transmit a control signal to the driving device at the same time point every time based on the waveform of the AC power source S for controlling the lamps. And the operation of these lamps is matched. When each signal receiving apparatus performs control, a situation in which the operation of each lamp does not match is avoided.

In addition to the light emitting diode module and the fluorescent lamp, other lamps may be employed as the lamps employed in the lighting system. For example, lamps such as electric lamps and gas lamps may be employed. The control method of the present invention can be similarly applied only by adopting a drive device corresponding to the above.

The above-described embodiments are merely for explaining the technical idea and features of the present invention, and are intended to allow those skilled in the art to understand the contents of the present invention and to carry out the same with the present invention. It is not intended to limit the scope of the claims. Accordingly, improvements or modifications having various similar effects made without departing from the spirit of the present invention shall be included in the following claims.

DESCRIPTION OF SYMBOLS 1 Illumination system 10 Input interface 102 Changeover switch 104 Switch 12 Signal transmission apparatus 14 Drive apparatus 16 Light emitting diode module 18 Signal reception apparatus 182 Phase angle detection circuit 184 Processor

2 lighting system 20 input interface 202 switch 22 signal transmission device 222 controller 224 wireless signal transmission unit 24 driving device 26 fluorescent lamp 28 signal reception device 282 wireless signal reception unit 284 processor 286 waveform detection circuit S AC power supply

Claims (9)

A control method for a plurality of lamps applied to an illumination system including an input interface, a signal transmission device, a plurality of signal reception devices, a plurality of driving devices, and a plurality of lamps,
The signal transmission device is electrically connected to the input interface, the signal of the signal transmission device is connected to the signal reception device, the signal reception device is electrically connected to an AC power source, and each of the signals The receiving device is electrically connected to each of the driving devices and each of the lamps in turn, and the method includes:
Step A in which the state of the input interface is detected by the signal transmission device;
The signal transmission device transmits a corresponding signal based on the state detected in step A, and
The signal is received by each of the signal receiving devices and the waveform of the AC power source is detected, and each of the signal receiving devices is converted into the signal at any one reference point in the period of the waveform of the AC power source. A control signal corresponding to each of the driving devices is transmitted to control each of the lamps, and the reference point of each cycle of the AC power source includes the same step C. Control method.   In step C, when each signal receiving device determines that the signal includes a luminance adjustment command, each signal receiving device controls each driving device, and light emitted from each lamp is emitted. When each of the signal receiving devices is at the reference point in each cycle of the waveform of the AC power source, each of the driving devices is controlled to change between the first luminance value and the second luminance value. The method for controlling a plurality of lamps according to claim 1, comprising changing the light emitted by the light into a luminance difference value.   In step C, when the signal receiving device determines that the signal includes a stop command, the control of the change in luminance is stopped, and the luminance value of the light generated by the lamp at that time is recorded and recorded. 3. The control of a plurality of lamps according to claim 2, further comprising emitting light having a brightness value recorded in the lamp by controlling the driving device based on the brightness value. Method.   In step C, when each of the signal receiving devices determines that the signal includes a brightness adjustment command, each of the driving devices is controlled by each of the signal receiving devices, and the light emitted from each of the lamps is The method for controlling a plurality of lamps according to claim 2, wherein the method changes from a third luminance value between the one luminance value and the second luminance value.   2. The method for controlling a plurality of lamps according to claim 1, wherein in step C, the reference point is a zero-crossing point in a period of a waveform detected by each of the signal receiving devices.   2. The method for controlling a plurality of lamps according to claim 1, wherein in step C, the reference point is a peak value in a period of a waveform detected by each of the signal receiving devices.   The signal transmission device is electrically connected to the AC power source, the signal reception device is electrically connected to the signal transmission device, and in step B, the signal transmission device is in a state detected in step A. Based on the waveform of the AC power supply, the waveform of the AC power supply is output after any one half-wave period has a delay conduction angle, and the signal is generated by the waveform of the AC power supply having the delay conduction angle. In step C, when the electric energy output from the signal transmission device is received by each of the signal reception devices, and the delayed conduction angle exists in the waveform of the electric energy output by the signal transmission device. 2. The control device according to claim 1, wherein after the determination, a corresponding control signal is transmitted to each of the driving devices based on the delayed conduction angle to control each of the lamps. Method of controlling the number of the lamp.   The input interface includes a switch. In step A, the conduction or non-conduction state of the switch is detected. In step B, the waveform of the AC power supply is modified by the signal transmission device when the switch is on. The method of controlling a plurality of lamps according to claim 7, wherein the delayed conduction angle is generated.   The method for controlling a plurality of lamps according to claim 1, wherein the signal transmitting device and the signal receiving device are connected by a signal by a wireless communication method.

Images