JP2006218137A - Driving system of light emitter - Google Patents

Driving system of light emitter Download PDF

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Publication number
JP2006218137A
JP2006218137A JP2005035412A JP2005035412A JP2006218137A JP 2006218137 A JP2006218137 A JP 2006218137A JP 2005035412 A JP2005035412 A JP 2005035412A JP 2005035412 A JP2005035412 A JP 2005035412A JP 2006218137 A JP2006218137 A JP 2006218137A
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Japan
Prior art keywords
controller
serial data
light emitter
lighting
driver ic
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Pending
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JP2005035412A
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Japanese (ja)
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JP2006218137A5 (en
Inventor
Seiichi Aoki
Takaki Fukushima
Kentaro Iba
Takayuki Tanaka
健太郎 射場
隆行 田中
貴樹 福島
清一 青木
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Akuseru:Kk
株式会社アクセル
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Publication of JP2006218137A publication Critical patent/JP2006218137A/en
Publication of JP2006218137A5 publication Critical patent/JP2006218137A5/ja
Pending legal-status Critical Current

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Abstract

To reduce the number of harnesses in a drive system for a light emitter.
A light emitter driving system including a controller board, a plurality of light emitters, and a driver IC is provided. The controller board 1 includes a CPU 2 and a controller 3 that converts a signal from the CPU 2 into serial data and sends the serial data. The plurality of light emitters 6 are provided apart from the controller board 1. The driver IC 5 has a serial data line and a clock data line cascaded from the controller 3, respectively, and includes a conversion circuit that converts a serial signal and a parallel signal from the controller 3, and a drive circuit that operates the light emitter.
[Selection] Figure 1

Description

  The present invention relates to a driving system for a light emitter represented by a light emitting diode (LED).

  Conventionally, in a system for controlling a gaming machine such as a pachinko machine, a driver IC connected to a parallel output port is driven by controlling a parallel output port connected to a controller board on which a CPU (Central Processing Unit) is mounted. Is done. The driver IC controls these light emitters in order to enhance the effect of the gaming machine through turning on / off the LEDs and lamps.

  Regarding a circuit using an LED as an example of a light emitter, for example, Patent Document 1 discloses a system that generates a light emission pattern substantially similar to the light emission pattern of a white light bulb by using a plurality of color LEDs in a gaming machine. It is disclosed. Patent Document 2 discloses a system that reduces power supply devices by supplying output from a power supply base to drive LEDs.

JP 2003-135589 A JP 2001-259131 A

  By the way, in recent years, the number of light emitters used for the effects of gaming machines has been increasing in order to enhance the effect of the effects. As a result, the number of harnesses (route lengths) connected to the driver IC inevitably increases, and the number of terminals of the connector also increases. As a result, the ratio of this to the printed circuit board increases, which hinders downsizing of the printed circuit board and increases the manufacturing cost.

  This invention is made | formed in view of this situation, The objective is aiming at reduction of the harness in the drive system of a light-emitting body.

  In order to solve this problem, the present invention provides a drive system for a light emitter that includes a controller board, a plurality of light emitters, and a driver IC. Here, the controller board includes a CPU and a controller that converts a signal from the CPU into serial data and transmits the serial data. The plurality of light emitters are provided apart from the controller board. The driver IC has a serial data line and a clock data line cascaded from the controller, respectively, and includes a conversion circuit that converts a serial signal and a parallel signal from the controller, and a drive circuit that operates the light emitter.

  In the present invention, it is preferable that the number of light emitters is variably set by changing the driver address code included in the serial data.

  Moreover, in this invention, you may set the brightness | luminance of a light-emitting body variably by changing the LED data code contained in serial data.

  Furthermore, in the present invention, the controller may have an effect setting register, and may set the lighting / extinguishing timing variably by sending serial data that can be subjected to luminance modulation by clock data.

  According to the present invention, since the number of data lines between the controller board and the driver IC can be reduced, it is possible to reduce the harness of the drive system for the light emitter.

  FIG. 1 is a block diagram of a light-emitting body driving system according to this embodiment. This light emitting body drive system includes a controller board 1, two relay units 4 a and 4 b on which a plurality of driver ICs 5 are mounted, and a plurality of light emitting bodies 6 provided apart from the controller board 1. Yes. A CPU 2 and a controller 3 are mounted on the controller board 1, and one terminal of the serial data line and one terminal of the clock data line are connected to the controller 3. The other terminal of the serial data line and the other terminal of the clock data line are connected in parallel to the two relay units 4a and 4b. A harness 7 is provided between the controller board 1 and the two relay units 4a and 4b. The harness 7 distributes data sent from the controller board 1 to the relay units 4a and 4b. The driver IC 5 includes a conversion circuit (not shown) that converts serial data into parallel data, and a drive circuit (not shown) that drives LEDs and lamps. The controller 3 is a serial of the CPU 2 itself. A controller (clock synchronization control) can be used instead.

  FIG. 2 is a detailed circuit diagram mainly including the first relay unit 4a. In the first relay unit 4a, a serial data line wired from the controller board 1 via the harness 7 and a clock data line are connected in parallel to the two driver ICs 5. In addition to the above data lines, three voltages Vcc, Vdd1, and Vdd2 are output from the controller board 1 in order to drive the light emitters 6 such as LEDs and lamps. Here, Vcc is the voltage of the driver IC 5 and is set to 3.3 V as an example. Vdd1 is the voltage of the sink LED and is set to 12V as an example. Further, Vdd2 is a lamp voltage, and is set to 24 V as an example. A power line to which these voltages Vcc, Vdd1, and Vdd2 are respectively supplied and a ground line to which the ground voltage GND is supplied are connected to the first relay unit 4a.

  The two driver ICs 5 constituting a part of the first relay unit 4a are provided in parallel with each other. One driver IC 5 plays a role of driving one circuit system included in the first relay unit 4a. Specifically, as can be seen with reference to FIG. 1, one driver IC 5 is connected to six lamps in the first relay unit 4a and nine sink LEDs, and the first Eight sink LEDs outside the relay unit 4a are connected. One driver IC 5 performs light emission control on these light emitters connected to the driver IC 5 under the control of the controller board 1 which is a host device. The other driver IC 5 plays a role of driving the other circuit system included in the first relay unit 4a. Specifically, 18 matrix LEDs are connected to the other driver IC in the first relay section 4a, and 30 matrix LEDs are connected outside the first relay section 4a. Similarly to one driver IC 5, the other driver IC 5 also performs light emission control on these light emitters connected to itself under the control of the controller board 1.

  FIG. 3 is a detailed circuit diagram mainly including the second relay unit 4b. In the second relay unit 4b, the serial data line and the clock data line are connected in parallel to the two driver ICs 5 from the controller board 1 via the harness 7. Similarly to the first relay unit 4a, the power line of three voltages (Vcc, Vdd1, Vdd2) and the ground line GND for driving the light emitter 6 from the controller board 1 are connected to the second relay unit 4b. Connected to. Although three voltage lines are described in the present embodiment, if none of the light emitters 6 of a certain kind is provided in the circuit for mounting, the power line corresponding to the light emitter 6 is connected to the circuit. It does not have to be done. For example, if a lamp is not provided in the circuit, the Vdd2 power line may not be connected to the circuit.

  The two driver ICs 5 constituting a part of the second relay unit 4b are provided in parallel with each other. One driver IC 5 plays a role of driving one circuit system included in the second relay unit 4b. Specifically, as can be seen with reference to FIG. 1, 47 matrix LEDs are connected to one driver IC 5 outside the second relay unit 4b. One driver IC 5 performs light emission control on these light emitters connected thereto under the control of the controller board 1. The other driver IC 5 plays a role of driving the other circuit system included in the second relay unit 4b. Specifically, 22 lamps are connected to the other driver IC 5 outside the second relay unit 4b, and under the control of the controller board 1, light emission control relating to these light emitters connected thereto is performed. .

  An output signal from the controller board 1 is composed of clock data and serial data synchronized with the clock data, and is periodically sent to the driver IC 5 via different cable lines. The wavelength of the serial data is 2 μs when the operation of the controller board 1 is, for example, 500 KHz, and the refresh cycle (one cycle in the lighting operation) is 16 ms.

  The serial data is composed of continuous frames, and the same frame is sent to each driver IC 5. The frame is composed of four pieces of information: header code, driver type code, driver address code, and LED data code. The header code indicates the head of the frame, and the driver type code indicates the type of driver IC to be controlled (for example, 8-bit sync driver IC, 16-bit sync driver IC, matrix driver IC). The driver address code is an address used to distinguish a specific driver IC 5, and the LED data code includes control information such as turning on / off the corresponding driver.

  FIG. 4 is a simplified block diagram of the configuration shown in FIGS. Two drivers ICa and ICb (each corresponding to the above-described driver IC5) are cascade-connected to the controller board 1, and N LEDs (Q1, Q2,...) Are connected to each driver ICa and ICb. .QN) are connected in parallel. Each driver ICa, ICb is preset with a unique driver type code for identifying itself and a driver address code.

  FIG. 5 is a timing chart of the block diagram shown in FIG. First, the driver ICa detects a frame sent serially from the controller board 1 from the header code. Next, it is detected whether each of the driver type code and the driver address code of this frame matches a code assigned in advance to the driver ICa itself. If these codes do not match, the frame is discarded for the driver ICa. On the other hand, when the codes match in a certain frame (in the case of frame a), the LED data code is read at the timing T1 immediately after receiving all the data related to this frame, and this data code is parallel. Converted to data. Then, a set of these clock data and timing is output to the LEDs (Q1 to QN) connected to the driver ICa. Thereby, the control lighting of the LEDs (Q0 to Qn) is performed. The same applies to the driver ICb. For example, when the coats match in frame b following frame a, the above-described operation is performed at timing T2. In this way, by serially outputting serial data with a frame as a processing unit, the LED is controlled and lit based on the LED data code.

  The luminance modulation can be performed by changing a duty ratio that defines a time ratio regarding lighting of the LED. Specifically, one refresh cycle corresponding to one frame period is divided into a predetermined number (for example, 16 equal parts), and 16 minimum division units are defined. The controller 3 designates an LED to be subjected to luminance modulation, and designates its duty ratio by 16 gradations (4 bits). The driver IC connected to the LED controls the on / off of the LED by combining the minimum division units according to the designated duty ratio. The luminance modulation is determined by the ratio of the on time in one refresh cycle.

  The controller 3 for sending out a frame is provided with a register, and this register performs control lighting combining luminance modulation and time with respect to the LED. The control lighting is performed by the CPU 2 giving effect settings to the controller 3 in advance, and the controller 3 converting the effect settings into a serial data frame in accordance with the timing of luminance modulation and sending it to the driver IC 5. The register includes a virtual port register and an effect register. In the virtual port register, each bit corresponds to ON / OFF of the corresponding LED. FIG. 6 is an explanatory diagram of control lighting. The positional relationship between the virtual port register on the left side of the figure and the LED on the right side of the figure is the same. As shown in the figure, when the CPU 2 sets data in the virtual port register, the LED directly connected to the local port and the LED connected to the driver IC 5 are reflected as a predetermined lighting pattern. The effect register corresponds to each bit of the virtual port register, and performs control lighting with a visual effect added to these LEDs. It should be noted that the positional relationship between the register described in the drawings and the LED lighting operation diagram is the same.

  The first bit of the effect register is an effect valid bit. The effect valid bit indicates whether the effect of the corresponding LED is valid or not valid. For example, when the effect valid bit is “1”, the control lighting corresponding to any one of fixed luminance lighting, pattern reference fading, pattern reference lighting, and audio input synchronous bright fading is performed for lighting of the light emitter.

  The second and third bits of the effect register are control lighting pattern bits. The control lighting pattern bit indicates which control lighting pattern is executed by the corresponding LED among fixed luminance lighting, pattern reference fading, pattern reference lighting, and voice input synchronous bright fading. For example, when the second bit and the third bit indicate “0” and “0”, the corresponding LED performs fixed luminance lighting. Similarly, when “0” or “1”, pattern reference fading is performed, when “1” or “0”, pattern reference lighting is performed, and when “1” or “1”, audio input synchronization fading is performed. . However, when the effect valid bit is “0”, the control lighting is not performed regardless of the bit string included. Each control lighting pattern will be described later.

  The fourth bit of the effect register is an end timing bit. The end timing bit indicates whether the corresponding LED ends lighting in the next lighting cycle. When the end timing bit is “0”, the control lighting corresponding to the effect setting bit is continuously continued in the next cycle, and when the end timing bit is “1”, the control lighting is ended at the next lighting cycle. The fifth to eighth bits of the effect register are effect setting bits. The LED performs a detailed operation for each control lighting set in advance.

  FIG. 7 is an example of a register in steady lighting. The steady lighting is a control method for switching between lighting and extinguishing at the maximum luminance. Usually, the LED assigned to the virtual port register or the LED assigned to the effect virtual port register and set not to use the effect function is controlled by a steady lighting system. FIG. 8 is a lighting operation diagram corresponding to the virtual port register of FIG. As shown in FIG. 8, the LED corresponding to “1” is lit at the maximum luminance, and the LED corresponding to “0” is not lit. Here, the effect register is not used.

  FIG. 9 is an example of a register in fixed luminance lighting. Fixed luminance lighting is a method of controlling lighting and extinguishing by designating luminance of 16 gradations. Assigned to the effect register to use the fixed brightness effect. FIG. 10 is a lighting operation diagram corresponding to the virtual port register shown in FIG. At this time, the 5th to 8th bits of the effect register are luminance gradations. The luminance gradation corresponds to the binary luminance gradation in the corresponding LED, and there are four bits, so it can be expressed in 16 gradations. For example, when the fifth to eighth bits are “1111”, the LED is turned on at the maximum luminance, and when it is “0000”, the LED is turned off.

  FIG. 11 is an example of a register in pattern reference luminance fading. Pattern reference luminance fading is a method in which luminance is automatically and continuously controlled while referring to parameters designated in advance. FIG. 12 is a lighting operation diagram corresponding to the virtual port register shown in FIG. At this time, the fifth to eighth bits of the effect register indicate a pattern reference luminance fading pattern number. The LED corresponding to each bit periodically operates in a preset pattern. FIG. 13 is an example of parameters that are set in advance when performing pattern reference luminance fading. In this embodiment, there are five fading timings, and the time between each timing and the luminance at the timing point are set. The luminance modulation between timings changes continuously and linearly. When all the timings are finished, the operation returns to the beginning of the cycle and repeats the same cycle operation.

  FIG. 14 is an example of a register in pattern reference blinking. Pattern reference blinking is a method of periodically controlling lighting and extinguishing at the maximum luminance while referring to parameters designated in advance. FIG. 15 is a lighting operation diagram corresponding to the virtual port register shown in FIG. In this embodiment, when the pattern number from the 5th bit to the 8th bit is “1001”, the corresponding LED is lit at the timing t1 to the timing t2, and when it is “0111”, the corresponding LED is the timing. Lights from t2 to timing t3. FIG. 16 is an example of parameters that are set in advance when performing pattern reference luminance blinking. In this embodiment, the blinking cycle is set to 15, and the lighting / extinguishing timing is determined in each cycle. When all the blinking cycles are completed, the operation returns to the beginning of the cycle and repeats the same cycle operation.

  FIG. 17 is an example of a register in audio input synchronous luminance fading. The voice input synchronized luminance fading is a control method in which the luminance is automatically changed in accordance with the sound pressure level of an audio signal input from the outside. FIG. 18 is a lighting operation diagram corresponding to the virtual port register shown in FIG. In this embodiment, the 5th to 8th bits of the effect register indicate the selection number of the audio source, and by changing this value, a different audio source is selected.

  Thus, in the present embodiment, the connection from the controller board 1 to the first and second relay units (4a, 4b) is configured by six data lines and one harness. Further, in the conventional technique, when the same configuration as that in FIG. 1 is performed, the controller board 1 includes 78 data lines connected from the first and second relay units, and two harnesses 7. Therefore, by changing the parallel data line as a serial data line and providing serial / parallel conversion in the controller board 1 and the driver IC 5, the number of harnesses 7 can be greatly reduced.

  In addition, the area occupied by the light emission drive system on the board can be reduced, and the manufacturing cost per system circuit can be reduced. Furthermore, since the space is created on the same base as the harness 7 is reduced, a system equipped with many functions can be created. Note that the number of LEDs can be increased easily by cascade-connecting a new driver IC 5 to the system circuit and adding this driver IC 5 address code to the controller board 1.

The block diagram of the drive system of the light-emitting body which concerns on this embodiment Detailed circuit diagram mainly composed of the first relay unit Detailed circuit diagram mainly composed of second relay section The block diagram which simplified the structure shown in FIGS. 1-3 Timing chart of the block diagram shown in FIG. Illustration of control lighting Example of register in steady lighting Lighting operation diagram corresponding to FIG. Diagram of register with fixed brightness Lighting operation diagram corresponding to FIG. Example of register in pattern reference luminance fading Illumination operation diagram corresponding to FIG. Pattern reference luminance fading parameter setting example Example of register for pattern reference lighting Illumination operation diagram corresponding to FIG. Pattern reference lighting parameter setting example An example of register in audio input synchronous luminance fading Example of lighting operation corresponding to FIG.

Explanation of symbols

1 Controller board 2 CPU
3 Controller 4a 1st relay part 4b 2nd relay part 5 Driver IC
6 Light emitter 7 Harness

Claims (4)

  1. In the drive system of the luminous body,
    A controller board having a CPU and a controller for converting a signal from the CPU into serial data and transmitting the serial data;
    A plurality of light emitters provided apart from the controller board;
    A plurality of driver ICs each having a serial data line and a clock data line cascaded from the controller, each having a conversion circuit for converting a serial signal and a parallel signal from the controller, and a drive circuit for operating the light emitter A drive system for a light emitter, comprising:
  2.   2. The light emitter drive system according to claim 1, wherein the number of the light emitters is variably set by changing a driver address code included in the serial data.
  3.   3. The luminous body drive system according to claim 1 or 2, wherein the luminance of the luminous body is variably set by changing an LED data code included in the serial data.
  4. 4. The controller according to claim 1, wherein the controller has an effect setting register and variably sets the lighting or extinguishing timing by transmitting serial data capable of performing luminance modulation in accordance with clock data. A driving system for a light emitter described in any one of the above.
JP2005035412A 2005-02-14 2005-02-14 Driving system of light emitter Pending JP2006218137A (en)

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JP2012050869A (en) * 2011-11-10 2012-03-15 Sankyo Co Ltd Game machine
JP2012183426A (en) * 2012-07-05 2012-09-27 Sankyo Co Ltd Game machine
JP2012183427A (en) * 2012-07-05 2012-09-27 Sankyo Co Ltd Game machine
JP2012210464A (en) * 2012-07-05 2012-11-01 Sankyo Co Ltd Game machine
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JP2013031686A (en) * 2012-10-04 2013-02-14 Sankyo Co Ltd Game machine
JP2013027736A (en) * 2012-10-04 2013-02-07 Sankyo Co Ltd Game machine
JP2015163247A (en) * 2015-05-12 2015-09-10 株式会社藤商事 Game machine
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