JPH04938Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a music-synchronized fountain device that controls the height of a fountain using a fountain control signal set in accordance with broadcast music.

BACKGROUND ART As shown in FIG. 4, this type of music-tuned fountain device is provided with separate sound sources corresponding to the fountain nozzles 1a, 1b, 1c, and the first to third sound sources 2a, 2b,
The signal level of 2c is detected by level detection units 3a, 3b, 3
c, and the power control circuits 4a, 4b, 4c use the signals from the level detection units 3a to 3C as fountain control signals.
pumps 5a, connected to the fountain nozzles 1a-1c by power control circuits 4a-4c;
5b and 5c are executed to control the fountain nozzle 1a.
The height H of each of the fountains A, B, and C from 1c to 1c is controlled separately. 6 is a fountain pond; 7 is a speaker for broadcasting music near the fountain pond 6; signals from the first to third sound sources 2a to 2c are mixed in a mixer 8;
This is amplified by an amplifier 9 and driven.

With this configuration, people who appreciate the fountains can enjoy the music broadcast from the speakers 7 and the height changes of the fountains A, B, and C. However, this height change of the fountain is broadcast from the speaker 7 due to the rise characteristics of the rotation system of the pumps 5a to 5c and the time required for the water to be sprayed from the fountain nozzles 1a to 1c to the desired height. There is a slight lag time compared to the changes in the music being played. Therefore, conventionally,
A delay circuit 10 is interposed between the mixer 8 and the amplifier 9, and the broadcast from the speaker 7 is delayed by a specified time τ to reduce the discrepancy between the broadcast music and the appearance of the fountain.

The prescribed time τ will be explained in more detail. As the first to third sound sources 2a to 2c, signals for each musical instrument recorded according to the music to be broadcast are applied. For example, the first sound source 2a is a piano, the second sound source 2b is a flute, The third sound source 2c is a violin. These reproduced signals are sent to the level detectors 3a~
The level detection signal obtained by applying it to 3c is Sa,
Assume that Sb and Sc are stable at level V ₁ before time Tn, as shown in Figure 5, and that the height of fountains A, B, and C at time T _o is H ₁ . . Level detection signal at time T _o
When Sb is higher _than Sc, the level detection signal Sa becomes Sb
At time T _{o +1,} when a predetermined period of time has passed since the change to V ₃ which is higher than level V 3, fountains A and B reach the spouting height H ₂ corresponding to level V ₂ , and at time T _o+1 Suppose that fountain A reaches the spouting height H ₃ corresponding to level V ₃ at time T _{o +2} , when a predetermined period of time has elapsed since then. The desired eruption heights H ₁ , H ₂ , and H ₃ are reached at T _o+2 . Therefore, the delay circuit 1
(T _{o +2} - _{T o} ) is set as the specified time τ in 0, and the music at time T _o is broadcast from the speaker 7 at time T _{o +2} , and the discrepancy between the broadcast music and the appearance of the fountain is calculated. is reduced.

Problems to be Solved by the Invention In such a conventional configuration, since the prescribed time τ of the delay circuit 10 is constant regardless of the magnitude of the level change of the detection signals Sa to Sc, the fountain A in FIG. Currently, when the fountain rises higher than the height _H3 , a discrepancy occurs between the music and the appearance of the fountain, causing discomfort to the viewer.

The object of the present invention is to provide a music-tuned fountain device that can reduce the discrepancy between broadcast music and the appearance of the fountain regardless of changes in the height of the fountain.

Means for Solving the Problems The music-tuned fountain device of the present invention controls the height of each fountain by applying separate fountain control signals set according to the music signal to be broadcast to the fountain control unit. The separate fountain control signals are configured such that the signal instructing a high spouting height state at a predetermined time is longer than the signal instructing a low spouting height state at the predetermined time. The present invention is characterized in that a variable delay circuit that can adjust the delay time of each fountain control signal is interposed in the signal line that is set in the memory device and that applies each fountain control signal reproduced from the memory device to the fountain control section.

Effects According to this configuration, each fountain control signal is set so that the time increases as the height of the fountain rises increases, so that the fountain assumes the desired state at a predetermined time and is transmitted to the music signal system for broadcasting. There is no need to install a delay circuit, and even if the eruption height changes, the amount of advance of the signal is changed and set.
Regardless of the height of the eruption, it is possible to maintain synchronization between the fountain's appearance and the broadcast music.

Further, by adjusting the variable delay circuit, the advance time can be corrected without rewriting the settings of the fountain control signal in the memory device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Components having the same functions as those in FIGS. 4 and 5 showing the conventional example are given the same reference numerals and their explanations will be omitted.

The music synchronized fountain device of the present invention is constructed as shown in FIG.
The configuration of FIG. 2 excluding c will be explained. In FIG. 2, a memory device 11 is connected to a music synthesizer 13 and a power control circuit 4 via a control device 12.
a to 4c, and the control device 12 reads the signals read from the broadcast music area 14 of the memory device 11 according to the MIDI standard [Musical Instrument Digital
A first control unit 16 converts the signal into a signal format of "Interface", which is a worldwide unified standard for music synthesizers, and sends it to the communication line 15, and detects the level of the signal read from the fountain control signal area 17 of the memory device 11. and a second control section 18 that converts the level of signals Sa to Sc and sends them to power control circuits 4a to 4c. Reading from the fountain control signal area 17 is being executed.

In the broadcast music area 14, keyboard information, tone programs, etc. necessary for playing a desired song in concert with piano, flute, and violin tones are written in digital signals as the playing time progresses. On the other hand, data is written in the fountain control signal area 17 in the following manner in correspondence with the intended song number and its tone program written in the broadcast music area 14.

The content before the predetermined time T _o of the music broadcast from the speaker 7 by controlling the Music Synthesizer 13 with MIDI signals is such that the piano tone level, flute tone level, and violin tone level are all V ₁ Assuming that the tone level of the piano rises to V ₃ and the tone level of the flute rises to V ₂ [however, V ₃ > V ₂ > V ₁ ] at time T _o , the rise of the pumps 5a to 5c of the fountain drive system Even if there is a delay in the characteristics, as shown in Figure 1, the heights of each jet of fountains A to C will be H ₃ , H ₂ , H ₁ at time T _o [however, H ₃
> H ₂ > H ₁ ], the level detection signal Sb of fountain B, which has a higher spouting height than fountain C, changes from V ₁ to V ₂ at time T _o-1, which is before time T _o . The level detection signal Sa of fountain A, which has a higher spouting height than fountain B, is set to raise the level from V ₁ to V ₃ at time T _{o- 2, which is before time T o-1.} ing. In Fig. 1, virtual line 1
9 and 20 represent conventional signal changes. The time (T _o −T _o-2 ) and (T _o −T _o-1 ) are respectively (V ₃ −
V ₁ ) and (V ₂ −V ₁ ), and the larger the level difference, the longer the advance time.

With this configuration, when the control device 12 starts reading out the broadcast music area 14 and the fountain control signal area 17 of the memory device 11 in synchronization and executes the broadcast and fountain control by the music synthesizer 13, the fountain A The state of ~C changes as follows.

Fountain A with a spouting height H ₁ at time T _o -2 has a level detection signal Sa from V ₁ to V ₃ at time T _{o -2.}
pump 5a from time T _o-2 to T _o.
The rotation speed of increases and the height of the eruption reaches time T _o .
Reach _H3 . Similarly, at time T _o-1 , fountain B with a spouting height H ₁ is pumped from time T _o-1 to T o because the level detection signal Sb rises from V ₁ to V ₃ at time T _{o-1 .} The rotational speed of 5b increases and the height of the eruption reaches H ₂ at time T _o .

As a result, the height of each fountain A to C at time T _o can be adjusted to
H ₃ , H ₂ , synchronized with each tone level of the violin
Since they are aligned at H ₁ , the discrepancy between the broadcast music and the appearance of the fountain is reduced compared to before, even when the tone level changes significantly.

When the fountain is installed and operated, each pump 5a to 5
Piping 21a~ between c and fountain nozzles 1a~1c
21c, it is not possible to obtain good synchronization between the broadcast music and the fountain posture if the contents of the fountain control signal area 17, which are set in advance before installation, are the same, and the configuration shown in Fig. 2 cannot be obtained. Then, the settings of the fountain control signal area 17 must be changed at the installation site.

However, in the present invention, as shown in Fig. 3, the control circuit 1
Delay circuits 19a, 19b, 19c are interposed in the signal line from 2 to each power control circuit 4a to 4c, and a variable resistor as a variable means is connected to each delay time of each delay circuit 19a to 19c. 2
Since the configuration is configured such that the timing of the level detection signals Sa to Sc to the power control circuits 4a to 4c can be varied up to a predetermined time by operating the power control circuits 4a to 20c, the timing of the level detection signals Sa to Sc to the power control circuits 4a to 4c can be changed without rewriting the fountain control signal area 17. The timing can be changed individually, eliminating the need for troublesome on-site rewriting of the memory device 11.

In this case, when setting the fountain control signal area 17, the signal is set to advance by more than the expected advance time, and this advance time is corrected by delay circuits 19a to 19c during on-site installation. It is adjusted accordingly.

Effects of the Invention As described above, in the music-synchronized fountain device of the present invention, each fountain control signal is set in the memory device so that the time advances as the signal instructs the higher the height of the fountain. Regardless of the situation, the appearance of the fountain can be synchronized with the broadcast music,
This can alleviate the discomfort caused to viewers due to the discrepancy between the broadcast music and the appearance of the fountain, as in the past.

Furthermore, since a variable delay circuit is inserted in the signal line to the fountain control unit, the timing of each signal can be changed simply by operating the variable delay circuit without rewriting the fountain control signal in the memory device. On-site adjustment work is easy.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the present invention, Figure 1 is a diagram of the relationship between temporal changes in each fountain control signal and the fountain state, and Figure 2 is an explanation of the main parts of the music-tuned fountain device of the present invention. 3 is a block diagram of the present invention, FIG. 4 is a block diagram of a conventional music-tuned fountain device, and FIG. 5 is a diagram showing the relationship between the temporal change of the fountain control signal and the fountain state in FIG. 4. 1a to 1c... fountain nozzle, 4a to 4c... power control circuit, 5a to 5c... pump, 7... speaker, 11... memory device, 12... control device,
13... Miyujitsuk Synthesizer, 14...
Broadcast music area, 16... First control unit, 17...
...Fountain control signal area, 18...Second control section,
19a to 19c...delay circuits [variable delay circuits].

Claims (1)

[Scope of utility model registration request] The configuration is configured such that each fountain control signal set according to the music signal to be broadcast is applied to the fountain control unit to control the height of each fountain, and each of the fountain control signals is applied at a predetermined time. The signal instructing the state of high eruption height is set in the memory device ahead of the signal instructing the state of low eruption height at the predetermined time, and each signal reproduced from the memory device is A music-tuned fountain device in which a variable delay circuit that can adjust the delay time is interposed in a signal line that applies a fountain control signal to a fountain control unit.