JPH0864362A - Remote control spotlight - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a remote control spotlight that is compatible with transmission processing and actuator control processing and that follows the operation intended by the operator. A lamp unit 9, an actuator 8 that moves the irradiation direction of the lamp unit, a drive circuit 7 that drives the actuator, and an irradiation that outputs irradiation direction data according to the irradiation direction of the lamp unit. A direction sensor 5, a remote operation unit 1 for operating the illumination direction of the lamp unit from a distance, and a transmission processing unit 2 for receiving a remote operation command output from the remote operation unit.
A remote control command storage unit 4 for storing a remote control command received by the transmission processing unit; and a control unit 3 for controlling a drive circuit to drive the actuator. The remote operation command transfer unit 10 for transferring the remote operation command to the remote operation command storage unit is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control spotlight whose irradiation direction can be changed by remote control.

[0002]

2. Description of the Related Art Lighting devices such as spotlights are often used in stores, theaters, offices and the like. For the purpose, the demand for remote control spotlights that provide a movable part such as a servo actuator in a lighting fixture and remotely control the irradiation direction and focus is increasing.

An example of a conventional remote control spotlight is shown in FIG.
Will be explained. FIG. 5 is a block diagram showing a conventional remote control spotlight. 1 indicates a remote control unit,
It is configured to include a console 1a and a first driver receiver 1b, and is used when the operator gives an instruction to change the irradiation direction of the lamp body 9 at a position away from the lamp body 9.

The console 1a accepts an operator's operation and outputs a remote operation command corresponding to the operation to the first driver receiver 1b.

The first driver receiver 1b is a console 1
The remote control command output by a is converted into an electric signal and transmitted to the transmission processing unit 2 through the transmission line.

The transmission processing unit 2 includes a second driver receiver 2a and a reception notifying unit 2b, and performs a transmission process for receiving an electric signal sent to the transmission line and converting it into a remote control command. To do.

The second driver receiver 2a receives the electric signal output from the first driver receiver 1b and converts the electric signal into a remote control command. Reception notification unit 2b
Outputs a reception notification signal for notifying that the second driver receiver 2a has received the remote operation command to the CPU 3 corresponding to the control unit.

When the CPU 3 receives the reception notification signal,
The remote operation command is stored in the remote operation command RAM 4 by reading the remote operation command from the transmission processing unit 2 and writing it in the remote operation command RAM 4 corresponding to the remote operation command storage unit. Further, the CPU 3 uses the actuator 8 to change the irradiation direction of the lamp unit 9.
It also controls. Reference numeral 5 indicates an irradiation direction sensor. The irradiation direction sensor 5 detects the irradiation direction of the lamp body 9 and outputs the detection result to the CPU 3 as irradiation direction data.

The CPU 3 obtains the current irradiation direction data output from the irradiation direction sensor 5 and also outputs the remote operation command R.
The remote operation command is read from the AM 4 and the target irradiation direction data which is the control target value included in the remote operation command is also obtained.
Then, the CPU 3 calculates the difference between the values of the irradiation direction data and the target irradiation direction data, and outputs the control command value to the pulse width modulation circuit 6 according to the difference between the values.

Upon receiving the control command value, the pulse width modulation circuit 6 outputs a pulse train having a predetermined pulse width to the drive circuit 7 according to the control command value.

The drive circuit 7 applies a drive voltage to the actuator 8 based on the pulse train.

The actuator 8 drives the drive shaft by the drive voltage, and changes the irradiation direction of the lamp unit 9 toward the target direction.

The irradiation direction sensor 5 detects the irradiation direction again after the actuator 8 is driven, and outputs the current irradiation direction data to the CPU 3. The CPU 3 obtains the difference in value between the previously read target irradiation direction data and the current irradiation direction data, drives the actuator again, and repeats until there is no difference in the values between the target irradiation direction data and the current irradiation direction data.

[0014]

However, in the remote control spotlight as shown in FIG. 5 described above,
Even when the CPU 3 receives the reception notification signal from the transmission processing unit during the actuator control, the CPU 3 cannot perform the remote operation command storing process until the actuator control process is completed. In addition, the transmission processing unit cannot hold all the remote operation commands sent in sequence, and unless the data held by the transmission processing unit is sequentially acquired by the remote operation command storing process, the transmission processing unit performs remote control. The instruction cannot be held and overflow occurs. For this reason,
Even if the operator operates the console, the remote operation command is not stored in the remote operation command storage unit, and the remote operation command may be lost in the transmission processing unit. There is a problem in that it does not accurately follow the operation intended by the person.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a remote control spotlight that faithfully follows the operation intended by the operator.

[0016]

In order to solve the above-mentioned problems, the present invention provides a lamp unit, an actuator for moving the irradiation direction of the lamp unit, A drive circuit that drives the actuator, an irradiation direction sensor that outputs irradiation direction data according to the irradiation direction of the lamp unit, a remote operation unit that operates the irradiation direction of the lamp unit from a distance, and the remote operation. A transmission processing unit that receives a remote operation command output by the unit, a remote operation command storage unit that stores the remote operation command received by the transmission processing unit, and a target including the remote operation command stored in the remote operation command storage unit A remote control spot including a control unit for reading the irradiation direction data and controlling the drive circuit to drive the actuator in a direction in which the target irradiation direction data and the irradiation direction data coincide with each other. In sites and is characterized in that a remote control instruction transfer unit for transferring the remote control instruction from the transmission processing unit to the remote operation instruction storage unit.

Further, in the invention according to claim 2, a lamp unit, an actuator for moving the irradiation direction of the lamp unit, a drive circuit for driving the actuator, and an irradiation direction of the lamp unit. An irradiation direction sensor that outputs irradiation direction data according to the above, a remote operation unit that operates the irradiation direction of the lamp unit from a distance, a transmission processing unit that receives a remote operation command output from the remote operation unit, and A remote operation command storage unit that stores a remote operation command received by the transmission processing unit, and the target irradiation direction data including the remote operation command stored in the remote operation command storage unit is read to obtain the target irradiation direction data and the irradiation direction data. And a control unit that controls the drive circuit so as to drive the actuator in a direction in which the remote control spotlight is included in the transmission processing unit. A remote operation command writing unit for writing a remote operation command to the instruction storage unit, and the remote operation command storage unit is a dual port ram that can be read and written by the transmission processing unit and the control unit. Is.

[0018]

With the above configuration, in the invention according to the first aspect, the remote operation command transfer unit, which has received the transfer permission command from the control unit, remotely transmits the remote operation command received by the transmission processing unit. Since the remote operation command storing process to be stored in the operation command storing unit is performed instead of the control unit, the control unit can concentrate on the actuator control process even when the remote operation command storing process is being executed. That is, the control process of the actuator and the remote operation command storing process can be performed in parallel.

According to the second aspect of the invention, the remote control command writing unit writes the remote control command received by the transmission processing unit into the dual port RAM, thereby performing the remote control command storing process. Therefore, the control unit does not need to perform the remote operation command storing process, and the control unit can concentrate on the actuator control process even when the remote operation command storing process is being executed. That is, the control process of the actuator and the remote operation command storing process can be performed in parallel.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a remote control spotlight according to the present invention will be described below in detail with reference to FIGS. 1 and 2, and a second embodiment will be described in detail with reference to FIGS. [First Embodiment] FIG. 1 is a block diagram showing a remote control spotlight. FIG. 2 is a flowchart explaining the operation of the control unit of the remote control spotlight. In the remote control spotlight shown in FIG. 1, the same parts as those of the remote control spotlight described in the related art with reference to FIG. Detailed description is omitted.

The remote control spotlight shown in FIG. 1 is different from the remote control spotlight described in the prior art with reference to FIG. 5 in that it is characterized by a direct memory access controller (a remote operation command transfer unit). D
That is, the MA controller) 10 is provided.
The transmission process of the remote control spotlight and the remote operation command storing process of this embodiment will be described below.

When the second driver receiver 2a in the transmission processing unit 2 receives the electric signal output from the first driver receiver in the remote operation unit 1, the second driver receiver 2a converts the electric signal into a remote operation command, and the reception notification unit 2b. Outputs to the CPU 3 a reception notification command informing that the remote control command has been received.

When the CPU 3 receives the reception notification signal,
At the same time as outputting the transfer permission command to the DMA controller 10, the right of the address bus B1 and the data bus B2 of the CPU 3 is transferred to the DMA controller 10.

When the DMA controller 10 receives the transfer permission command, it operates independently of the CPU 3 and operates on the address bus B.
The remote operation command storage process is performed by transferring the remote operation command transmitted to the transmission processing unit 2 to the remote operation command RAM 4 using the data bus 1 and the data bus B2.

Even if the CPU 3 is in the process of controlling the actuator, the CPU 3 accepts the reception notification signal from the transmission processing unit 2 and outputs the transfer permission command to the DMA controller without waiting for the end of the actuator control process. ,
The remote control command storing process is performed even during the actuator control process.

Next, the operation of the CPU 3 will be described with reference to the flowchart of FIG. At the start of operation of the remote control spotlight, no remote control command has been received, so the remote control command is first received and the remote control command RAM 4 is received.
It starts from the process of storing in (step 101). Therefore, the CPU 3 checks whether or not the reception notification signal is output from the reception notification unit 2b in order to determine whether the transmission processing unit 2 has received the remote control command (step 101).
a, 101b), if the reception notification signal is output, D
The transfer permission command is transmitted to the MA controller 10, and the CPU
The right to use the third address bus B1 and the data bus B2 is transferred to the DMA controller 10 (step 101c).
The DMA controller 10 transfers the remote operation command received by the transmission processing unit 2 from the transmission processing unit 2 to the remote operation command RAM 4 using the address bus B1 and the data bus B2 (step 110, step 111).

Next, the CPU 3 is a RAM for remote control commands.
The remote operation command is read from 4 to obtain the target irradiation direction data which is the control target value (step 102).

The CPU 3 checks whether or not the reception notification signal is output from the reception notification unit 2b (steps 103, 1).
04), if the reception notification signal is output, the transfer permission command is transmitted to the DMA controller 10, and the right to use the address bus B1 and the data bus B2 of the CPU 3 is transferred to the DMA controller 10 (step 105). The DMA controller 10 performs a remote operation command storage process by transferring the remote operation command from the transmission processing unit 2 to the remote operation command RAM 4 using the address bus B1 and the data bus B2 (step 110, step 111). .

Next, the CPU 3 detects the current irradiation direction of the lamp unit 9 from the irradiation direction sensor 5, obtains irradiation direction data (step 106), and obtains the difference between the irradiation direction data and the target irradiation direction data. (Step 107).

If there is a difference value (step 108), CP
U3 outputs a control command value to the pulse width modulation device 6 according to the value of the difference, and the pulse width modulation device 6 outputs a pulse train of a predetermined pulse width to the drive circuit 7 according to the control command value to output the actuator 8 Are driven in the target irradiation direction (step 109).

After the processing of step 109, the process returns to step 103 for receiving the reception notification signal again, and thereafter, a loop of the processing from step 103 to step 109 is formed. However, if there is no difference between the irradiation direction data and the target irradiation direction data in step 108, it means that the irradiation direction and the target irradiation direction instructed by the remote control command match, and the control target is achieved. Therefore, a loop of actuator control processing (step 103 to
Step 109) to get out of the process and read the remote control command to obtain a new control target (step 10).
Return to 2). [Second Embodiment] FIG. 3 is a block diagram showing a remote control spotlight, and FIG. 4 is a flow chart for explaining the operation of a control unit of the remote control spotlight. Note that, in the remote control spotlight shown in FIG. 3, the same numbers are given to the same portions as the remote control spotlight described in the related art with reference to FIG. Detailed description is omitted.

The remote control spotlight shown in FIG. 3 is different from the remote control spotlight described in the prior art with reference to FIG. 5 in that the remote control command storage unit is composed of a dual port ram 11 and the control unit 3 is used. And the transmission processing unit 2 can be accessed from each other.
That is, the remote operation command writing section 2c for writing the remote operation command in the dual port ram 11 is provided therein. The transmission process of the remote control spotlight and the remote operation command storing process of this embodiment will be described below.

When the operator operates the console 1a to change the position and irradiation direction of the lamp body 9 installed on the ceiling or the like, the console 1a outputs a remote control command to the first driver receiver 1b. To do.

The first driver receiver 1b is the console 1
The remote operation command output by a is converted into an electric signal and transmitted to the second driver receiver 2a through the transmission cable, and the second driver receiver 2a converts the received electric signal into a remote operation command again. Remote operation command writing unit 2
The c directly writes the remote operation command converted by the second driver receiver 2a in the dual port ram 11 to perform a remote operation command storing process of storing the remote operation command in the remote operation command RAM 4. Therefore, the CPU 3 does not need to perform the remote operation command storage process, but only the actuator control process.

Next, the operations of the CPU 3 and the transmission processing unit 2 will be described with reference to the flowchart of FIG.

Since no remote control command is transmitted at the start of operation of the remote control spotlight, first, the transmission process for transmitting / receiving the remote control command and the remote control command for storing the remote control command in the dual port ram 11 are performed. Start with the storage process.

Then, the operator operates the console 1a to
The second driver receiver 2a receives the electric signal output from the driver receiver of the. The second driver receiver 2a converts the received electric signal into a remote operation command (step 201), and the remote operation command writing unit 2c writes the remote operation command in the remote operation command RAM 4 (step 20).
2). After that, the transmission processing (step 201) and the remote operation command storage processing (step 202) are performed by the transmission processing unit 2 as needed, independently of the flow of processing performed by the CPU 3.

The CPU 3 reads the remote operation command from the dual port ram 11 to obtain the target irradiation direction data which is the control target value (step 203).

Next, the CPU 3 detects the current irradiation direction of the lamp unit 9 from the irradiation direction sensor 5, obtains irradiation direction data (step 204), and obtains the difference between the irradiation direction data and the target irradiation direction data. (Step 205).

If there is a difference value (step 206), CP
U3 outputs a control command value to the pulse width modulation device 6 according to the value of the difference, and the pulse width modulation device 6 outputs a pulse train of a predetermined pulse width to the drive circuit 7 according to the control command value to output the actuator 8 Is controlled (step 207).

After the process of step 207, the process returns to step 204 which is a process of reading the value of the irradiation direction sensor again,
After that, a loop of processing from step 204 to step 207 is formed. However, if there is no difference between the irradiation direction data and the target irradiation direction data in step 206, it means that the irradiation direction and the target irradiation direction instructed by the remote control command match, and the control target is achieved. The control process (step 207) is not performed, and the loop from step 204 to step 207 is exited and the process returns to the remote operation command reading process (step 203) to obtain a new control target.

[0042]

Since the remote control spotlight of the present invention is configured as described above, in the invention according to claim 1, the remote operation command transfer unit remotely transmits the remote operation command received by the transmission processing unit. By storing the remote operation command in the remote operation command storage unit by transferring it to the operation command storage unit, the control unit can concentrate on the actuator control process without performing the remote operation command storage process. Actuator control processing can be processed in parallel, the transmission processing unit cannot hold remote control commands and does not overflow, and the remote control commands sent by the operator using the console are all remote Since it is stored in the operation command storage unit, it is possible to provide a remote control spotlight that accurately follows the operation intended by the operator.

According to the second aspect of the present invention, the dual port ram is used for the remote operation command storage section, and the remote operation command writing section receives the remote operation command received by the transmission processing section from the dual port ram. -By writing to the ram, the remote operation command is stored in the remote operation command storage unit, so that the control unit can concentrate on the actuator control process without performing the remote operation command storage process. Can be processed in parallel, the transmission processing unit can not hold the remote control command and overflow does not occur, and the remote operation command sent by the operator using the operation console is not lost All remote operation command storage Since it is stored in the unit, it is possible to provide a remote control spotlight that accurately follows the operation intended by the operator.

[Brief description of drawings]

FIG. 1 is a block diagram showing a remote control spotlight according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of a control unit in the remote control spotlight according to the first exemplary embodiment of the present invention.

FIG. 3 is a block diagram showing a remote control spotlight according to a second embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of a control unit in the remote control spotlight according to the second exemplary embodiment of the present invention.

FIG. 5 is a block diagram showing a conventional remote control spotlight.

[Explanation of symbols]

 1 Remote Control Unit 2 Transmission Processing Unit 2c Remote Control Command Writing Unit 3 Control Unit 4 Remote Control Command Storage Unit 5 Irradiation Direction Sensor 7 Drive Circuit 8 Actuator 9 Lighting Unit 10 Remote Control Command Transfer Unit 11 Dual Port Ram

Claims (2)

[Claims] 1. A lamp unit, an actuator for moving the irradiation direction of the lamp unit, a drive circuit for driving the actuator, and an irradiation direction for outputting irradiation direction data according to the irradiation direction of the lamp unit. A sensor, a remote operation unit that operates the illumination direction of the lamp unit from a distance, a transmission processing unit that receives a remote operation command output from the remote operation unit, and a remote operation command that the transmission processing unit receives. And reading the target irradiation direction data included in the remote operation command stored in the remote operation command storage unit, and driving the actuator in a direction in which the target irradiation direction data and the irradiation direction data match. In the remote control spotlight including a control unit for controlling the drive circuit, a remote control unit for transferring a remote control command from the transmission processing unit to a remote control command storage unit. A remote control spotlight that is equipped with a work instruction transfer unit. 2. A lighting unit, an actuator for moving the lighting direction of the lighting unit, a drive circuit for driving the actuator, and an irradiation direction for outputting irradiation direction data according to the irradiation direction of the lighting unit. A sensor, a remote operation unit that operates the illumination direction of the lamp unit from a distance, a transmission processing unit that receives a remote operation command output from the remote operation unit, and a remote operation command that the transmission processing unit receives. And reading the target irradiation direction data included in the remote operation command stored in the remote operation command storage unit, and driving the actuator in a direction in which the target irradiation direction data and the irradiation direction data match. In the remote control spotlight having a control unit for controlling the drive circuit, a remote control command is written in the remote control command storage unit in the transmission processing unit. A remote control spotlight, characterized in that a remote operation command writing unit is provided, and the remote operation command storage unit is a dual port ram that can be read and written by the transmission processing unit and the control unit.