JP3060285B2 - Spotlight system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spotlight system, and more particularly, to a spotlight system having a control unit for controlling the irradiation positions of a plurality of spotlights.

[0002]

2. Description of the Related Art The inventors of the present application have filed Japanese Patent Application No. Hei 6-317.
In 388 etc., using a remote control that emits light, providing a light receiving sensor block in the spotlight,
A remote-controlled spotlight that can automatically detect the remote control was proposed. As shown in FIG. 6, the spotlight SL has five light receiving element blocks PS1 and 5 on the front surface of a main body H provided with a light projecting lens r of the spotlight SL.
A light receiving sensor block including PS2, TS1, TS2, and SS is provided to automatically detect light emitted by a remote controller (not shown), and to control the orientation by following the main body portion H toward the remote controller.

Here, the light receiving sensor block includes a pan detection area P in which the detection areas P1 and P2 overlap horizontally.
In order to form E, a set of pan light receiving element blocks PS1 and PS2 horizontally opposed to each other and a tilt detection area TE in which respective detection areas T1 and T2 are vertically overlapped are formed. Are provided with a pair of tilt light receiving element blocks TS1 and TS2, and a drive stop block SS is provided at the center thereof so that a stop detection area SE is formed. For this reason, on the external appearance, the drive stop block SS is centered, and 1
A pair of pan light receiving element blocks PS1 and PS2 and a pair of tilt light receiving element blocks TS1 and TS2 are arranged in a cross shape.

These light receiving element blocks PS1, PS
2, a detection area formed by TS1, TS2, and SS includes a pan detection area PE, a tilt detection area TE, and a stop detection area S, as shown in FIG. Incidentally, such a spotlight SL has a pan driving block (not shown) for horizontally moving the main body H about the pan axis PJ, and a vertical movement of the main body H about the tilt axis TJ. And a tilt drive block (not shown) are built in the main body H, and the position of the target remote controller is detected by light detection as follows.

The control operation in this case will be described with reference to FIGS. 8 to 11. First, the pan drive block is operated,
When the remote control is detected in the stop detection area S, the main body H is caused to pan in a direction where the remote control is located. By this pan operation, the remote control enters the pan detection area PE formed by the pair of pan light receiving element blocks PS1 and PS2 in the stop detection area S, and finally exits from this detection area PE. While moving the section H horizontally, the remote control moves the pan detection area P within the stop detection area S.
The detection start position A that has entered E and the detection end position B that has exited the pan detection area PE are stored (see FIGS. 8 and 9).

In this manner, the pan detection area movement amount is calculated from the detection start position A and the detection end position B of the pan detection area PE in the stop detection area S, and the midpoint position C thereof is obtained. Is operated in reverse to position the main body H at the midpoint position C. As a result, the main body H is placed facing the intermediate position C of the pan detection area PE.

Next, with the panning operation of the main body H fixed, the tilt drive block is operated to move the main body H up and down to detect the remote controller. With this tilt operation,
When one of the one set of tilt light receiving element blocks TS1 and TS2 detects a remote control, the tilt drive block further includes
The main body H is moved in a direction of the remote controller. As a result, the remote control enters the tilt detection area TE formed by the pair of tilt light receiving element blocks TS1 and TS2 within the stop detection area S, and finally, the detection area T
Since the vehicle exits from the position E, the detection start position D at which the remote controller has entered the tilt detection area TE and the detection end position E at which the remote control has moved out of the tilt detection area TE are stored while the main body H is tilted.

The detection start position D stored as described above
Then, the tilt movement amount is calculated from the detection end position E and the midpoint position F is obtained. This time, the tilt drive block is operated in the opposite direction to orient the main body H to the midpoint position F. As a result, the light receiving block S for stopping the driving of the light receiving sensor block S
S is located at the center of the stop detection area S from the principle of elementary geometry, the remote control is located on the optical axis of the drive stop light receiving block SS, and the front surface of the main body H is oriented to the light emitter. Will be done. Steps 201 to 213 in FIG.
9 is a flowchart showing a basic procedure of the position control method in this case.

[0009]

However, in the case of a conventional spotlight system, even if it is composed of a plurality of spotlights, it is necessary to individually perform positioning control of each spotlight by a remote controller. The positioning work was complicated, and the work efficiency was poor.

Further, even when all the spotlights are driven in conjunction with each other, each spotlight needs to have an infrared light receiving element block, so that the entire spotlight system is expensive. Furthermore, since the spotlight projector emits considerable heat, the temperature of the entire spotlight becomes high during use.However, the infrared light receiving element may malfunction due to this temperature change, and there is a problem in the reliability of remote control. there were.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spotlight system which can increase the efficiency of positioning work and has high reliability of positioning control at low cost.

[0012]

According to a first aspect of the present invention, there is provided a spotlight system according to the present invention, wherein a potentiometer is connected to a pan axis and a tilt axis to detect a drive angle by a swing drive, and a position indicating the drive angle. 1 to perform a swing drive around a pan axis and a tilt axis based on a master spotlight that outputs a detection signal and a drive control signal.
Alternatively, based on the position detection signals from the two or more slave spotlights and the master spotlight, a drive angle with respect to the pan axis and the tilt axis of each slave spotlight is obtained, and a drive control signal is generated for each slave spotlight. And an output controller unit. The drive control signal is calculated by the controller unit such that the swing driving of the slave spotlight follows the swing driving of the master spotlight.

According to a second aspect of the present invention, there is provided a spotlight system according to the first aspect, wherein the master spotlight of the first aspect of the present invention receives a remote control signal transmitted from the remote control. A signal receiving block, and a drive control unit that swings and drives around a pan axis or a tilt axis based on an output signal of the remote control signal receiving block. The swing driving of the master spotlight is remotely controlled by a remote controller, and the slave spotlight also swings to follow the remote control.

According to a third aspect of the present invention, the master spotlight of the spotlight system according to the second aspect of the present invention is configured as a remote control signal receiving unit having no light emitting device. . In this remote control signal receiving unit, the swing driving is remotely controlled by a remote controller, and the slave spotlight also swings so as to follow this.

[0015]

FIG. 1 shows an example of the configuration of a spotlight system according to the present invention described in claims 1 and 2. This spotlight system is configured by connecting a plurality of spotlights SL1 to SLn to a controller unit CU. Of the spotlights SL1 to SLn, only the spotlight SL1 is a master spotlight, and the other spotlights SL2 to SLn are slave spotlights.

Slave spotlights SL2 to SLn
The drive control unit DR2 is connected to the spotlight main body H2 to Hn.
To DRn. Spotlight body H2
To Hn are light projecting devices F2 to project spot light.
Fn, which is driven to swing horizontally about the pan axis PJ by the drive control units DR2 to DRn, or is driven vertically for swinging about the tilt axis TJ to obtain the spot light. Can be controlled.

The master spotlight SL1 further includes an infrared light receiving element block SB as a remote control signal receiving block. When each light receiving element of the infrared light receiving element block SB receives the infrared ray emitted from the remote controller R, the drive control unit DR1 swings and controls the spotlight SL1 by pan driving or tilt driving to change the irradiation direction of the spotlight. R matches in a certain direction. That is, the master spotlight SL1 is
It is remotely operated by the remote controller R and is swung.

The master spotlight SL1 is
The drive angle detected by the swing drive is detected and output to the control unit CU as a position detection signal. The control unit CU outputs a drive control signal to each of the slave spotlights SL2 to SLn based on the position detection signal. The drive control units DR2 to DRn of the slave spotlights oscillate the spotlights around the pan axis PJ or the tilt axis TJ based on the drive control signal, and change the irradiation direction of the spotlight to the master spotlight SL1. Follow the irradiation direction.

A more detailed block diagram of the spotlight system shown in FIG. 1 is shown in FIG. The master spotlight SL1 includes a spotlight body H1, an infrared light receiving element block SB, a position detection circuit PD, and a drive control unit D.
R1. Similar to the conventional spotlight SL ′, the spotlight SL1 is configured by five infrared light receiving elements, and the drive control unit DR1 pans the spotlight SL1 based on the infrared detection signal output from each infrared light receiving element of the light receiving element block SB. Move or tilt.

A potentiometer PM is provided on the pan axis PJ and the tilt axis TJ of the master spotlight SL1.
Are connected to each other, and the position detection circuit PD detects the drive angle of the spotlight SL1 based on the output signal from the potentiometer PM and outputs a position detection signal. This position detection signal is a signal including a pan angle θ1 that is a rotation angle about the pan axis PJ and a tilt angle φ1 that is a rotation angle about the tilt axis TJ.

Slave spotlights SL2 to SLn
Are composed of spotlight bodies H2 to Hn and drive control units DR2 to DRn, respectively, and do not include an infrared light receiving element block and a position detection circuit. Drive control unit DR
2 to DRn pan or tilt drive the spotlight based on a drive control signal output from the control unit CU.

The controller unit CU comprises an offset processing circuit OP. Offset processing circuit O
P sets the drive angles related to the pan axis PJ and the tilt axis TJ based on the position detection signal output from the master spotlight SL1 to each of the slave spotlights SL2 to SL.
It is obtained by calculation for each Ln and output as a drive control signal.

In this way, the infrared ray as a remote control signal emitted from the remote controller R remotely controls only the master spotlight SL1, and the control unit CU is obtained by calculation from the driving position of the master spotlight SL1. Slave spotlights SL2 to SLn can be driven to the set driving positions, and the slave spotlights SL2 to SLn follow the remote control R so as to irradiate the spotlight in a certain direction without the infrared light receiving element block. be able to.

This tracking means that the slave spotlight S
Not only is the position illuminated by L2 to SLn coincident with the position illuminated by master spotlight SL1, but also to maintain a constant relationship between the two illuminated positions, the master spotlight is driven to swing by a slave. The case where a spotlight is linked is also included. Here, an example of the calculation method of the offset processing circuit is shown in FIGS.
This will be described using. 3 and 4 show the positional relationship between the master spotlight SL1, the slave spotlight SL2, and the remote controller R.

FIG. 3 is a view (plan view) of these when viewed from above, where the horizontal distance of the pan axis of the spotlights SL1 and SL2 is L1, and the vertical distance is L2. FIG. 4 is a diagram (side view) when these are viewed from the side, where distances from the floor to the spotlights SL1 and SL2 are L3 and L4, respectively, and a distance from the floor to the remote controller R is L5.

The initial direction of the spotlights SL1 and SL2 is vertical in FIG. 3, the horizontal direction in FIG. 4, the pan angle from the initial direction of the spotlight SL1 is θ1, and the tilt angle is φ1, It is assumed that the driving angles required to direct the spotlight SL2 to the method of the remote controller R are a pan angle θ2 and a tilt angle φ2.

In FIG. 3, the vertical and horizontal distances from the remote control R to the spotlight SL1 are X1,
Assuming X2,

[0028]

(Equation 1)

[0029]

(Equation 2)

## EQU2 ## However, 90 ° <φ1
In the case of <270 °, the sign of X1 is opposite, and in the case of 90 ° <θ1 <270 °, the sign of X2 is opposite.
The driving angles θ2 and φ2 of the spotlight SL2 are

[0031]

(Equation 3)

[0032]

(Equation 4)

Can be expressed as follows. Therefore, L1 to L5
Is a known value given in advance, the spotlight S
The tilt angle φ2 of L2 can be calculated by equations (1) and (3) based on the tilt drive angle φ1 of the spotlight SL1. In addition, spotlight SL2
The pan angle θ2 can be calculated by the equations (1), (2) and (4) based on the tilt angle φ1 and the pan angle θ1 of the spotlight SL1.

The offset processing circuit OP shown in FIG.
Input means such as a dip switch or a variable resistor is provided, and the values of L1 to L5 are set in advance by this. If there are multiple slave spotlights, L
1, L2 and L3 are spotlights SL2 to SLn, respectively.
It is set for each. On the other hand, master spotlight SL
1 is a pan angle θ1 and a tilt angle φ as position detection signals.
1 is output to the control unit CU.

Accordingly, the offset processing circuit OP performs the operations of the equations (1) to (4) to thereby control the pan angles θ2 to θn and the tilt angles φ2 to φn for each of the slave spotlights SL2 to SLn. Can be calculated. The pan angles θ2 to θn obtained in this manner
And the tilt angles φ2 to φn are output as drive control signals to the corresponding slave spotlights SL2 to SLn, respectively.

Next, FIG. 5 shows an example of the configuration of the spotlight system according to the third aspect of the present invention. This spotlight system includes a remote control signal receiving unit S
U and a plurality of spotlights SL2 to SLn are connected to the controller unit CU. The remote control signal receiving unit SU is obtained by removing the light projecting device F1 from the master spotlight SL1 shown in FIGS. 1 and 2. The remote control signal receiving unit SU includes an infrared light receiving element block SB, a position detection circuit PD, and a driving circuit. Control unit DR
1. Here, the light projecting device refers to a component for projecting a spot light such as a light emitting body such as a light bulb or a light projecting lens r.

The remote control signal receiving unit SU receives infrared rays emitted from the remote control R and swings in a certain direction of the remote control R, like the master spotlight SL1, and includes a pan angle θ1 and a tilt angle φ1. Outputs a position detection signal. However, this sensor unit S
Since U does not have the light projecting device F1, the sensor unit SU itself does not emit a spot light, and operates as a device that only detects infrared rays of the remote controller R and outputs a position detection signal.

The spotlights SL2 to SLn are the same as the slave spotlights shown in FIGS. The control unit CU is the same as that shown in FIGS. 1 and 2, and the control unit CU sends a drive control signal to each of the spotlights SL2 to SLn based on a position detection signal from the SU. Output.

Normally, in a spotlight, since the luminous body in the light projecting device F generates heat, not only the light projecting device F but also the entire spotlight becomes hot during light projecting. On the other hand, in the infrared light receiving element, the detection characteristic of infrared light generally changes due to a temperature change. Therefore, when the infrared light receiving element block SB is provided in the spotlight, the sensitivity of the infrared light receiving element changes due to a temperature change due to the projection of the spotlight. However, in the spotlight system according to the present invention, only The remote control signal receiving element unit SU including the infrared light receiving element block SB is
1, the remote control of the spotlight does not malfunction due to the heat generated by the light projecting device F.

[0040]

According to the spotlight system of the present invention, the irradiation direction of the slave spotlight can follow the irradiation direction of the spotlight of the master spotlight. Therefore, by controlling only the irradiation direction of the master spotlight, the irradiation directions of all spotlights can be controlled. That is, it is possible to provide a spotlight system in which the control of the irradiation direction can be performed quickly and easily as compared with the conventional spotlight system in which the control of the irradiation direction is required individually for all the spotlights. .

In the spotlight system according to the present invention, the master spotlight is remotely controlled by a remote controller, and the slave spotlight follows the master spotlight. Therefore, even if the slave spotlight does not include the remote control signal receiving block, it can be remotely controlled by the remote control. That is, a spotlight system capable of remotely controlling all spotlights can be provided at low cost. Further, the work of remote control by the remote controller is shortened and simplified.

According to a third aspect of the present invention, in the spotlight system, the master spotlight is configured as a remote control signal receiving unit having no light projecting device, and the remote control signal receiving block including an infrared light receiving element or the like is provided. There is no influence of temperature change due to heat generation of the light emitting device. Therefore, the malfunction of the remote control signal receiving unit can be prevented, and the reliability of remote control can be improved, and the reliability of remote control of all spotlights can be improved. For this reason, a spotlight system with high reliability of remote control can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing one configuration example of a spotlight system according to the present invention described in claims 1 and 2;

FIG. 2 is a more detailed block diagram of the spotlight system shown in FIG.

FIG. 3 is a plan view showing a positional relationship between a spotlight and a remote controller.

FIG. 4 is a side view showing a positional relationship between a spotlight and a remote controller.

FIG. 5 is a diagram showing a configuration example of a spotlight system according to the present invention described in claim 3;

FIG. 6 is a diagram showing a conventional remote-controlled spotlight.

FIG. 7 is a diagram showing a detection area of a light receiving element block.

FIG. 8 is a diagram showing a positioning control procedure by light detection.

FIG. 9 is a diagram showing a positioning control procedure by light detection.

FIG. 10 is a diagram showing a positioning control procedure by light detection.

FIG. 11 is a diagram showing a positioning control procedure by light detection.

FIG. 12 is a flowchart showing a positioning control procedure based on light detection proposed in the prior application.

[Explanation of symbols]

 SL1 ... master spotlight SL2-SLn ... slave spotlight CU ... control unit SB ... remote control signal receiving block DR1-DRn ... drive control unit PJ ... pan axis TJ ... tilt Axis R: Remote control SU: Remote control signal receiving unit PM: Potentiometer F: Light emitting device

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyuki Inoue 1048 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Works, Ltd. (56) References JP-A-6-196005 (JP, A) JP-A-6-76607 (JP, A) JP-A-7-147104 (JP, A) JP-A-5-242704 (JP, A) JP-A-6-203966 (JP, A) JP-A-4-329201 (JP, U) ( 58) Field surveyed (Int. Cl. ⁷ , DB name) F21S 2/00 F21S 10/00 F21V 21/14

Claims (3)

(57) [Claims] 1. A master spotlight having a potentiometer on a pan axis and a tilt axis, detecting a drive angle with respect to the pan axis and the tilt axis by swinging drive, and outputting a position detection signal indicating the drive angle, and a drive control signal. , One or more slave spotlights that swing and drive about the pan axis and the tilt axis, and driving of each slave spotlight with respect to the pan axis and the tilt axis based on a position detection signal from the master spotlight. A spotlight system comprising: a controller unit for obtaining an angle and outputting a drive control signal to each slave spotlight, wherein the slave spotlight follows the swing drive of the master spotlight. 2. A remote control signal receiving block for receiving a remote control signal emitted from a remote controller by the master spotlight, and an output signal of the remote control signal receiving block.
The spotlight system according to claim 1, further comprising: a drive control unit that performs a swing drive around a pan axis or a tilt axis, and wherein the swing drive of the master spotlight is remotely controlled by a remote controller. 3. The spotlight system according to claim 2, wherein said master spotlight is configured as a remote control signal receiving unit having no light projecting device.