TW201832569A - Sound reinforcement apparatus of outdoor stand-alone broadcast constituted by a pole erected on the ground, an installation solar panel, a dedicated antenna, a speaker, and a control box - Google Patents

Abstract

An object of this invention is to provide a sound reinforcement apparatus of an outdoor stand-alone broadcast, which is an existing receiver providing a household receiver utilizing disaster prevention administrative wireless communication, and can be easily installed outdoors in a stand-alone manner, and is novel and useful. A solution of this invention is as follows: the sound reinforcement apparatus is composed of a pole (5) erected on the ground, an installation solar panel (29), a dedicated antenna (33), a speaker (35), and a control box (7) for accommodating the receiver and the like. The control box (7) is provided with a control substrate and an external sound reinforcement amplifier, and when the receiver receives a sound broadcast of the disaster prevention administrative wireless communication, the sound broadcast is output from the speaker. Generally, it has a function of switching an external sound amplifier for silent standby into ON/OFF, and a function of adjusting a sound voltage on the receiver side, even if the receiver is the household receiver or a disaster prevention radio, and an easy-to-listen broadcast is achieved regardless of any dealer.

Description

 Outdoor independent broadcast sound reinforcement device  

The present invention relates to an outdoor broadcast sound reinforcement apparatus, and more particularly to an outdoor free-standing broadcast sound reinforcement apparatus that can broadcast a predetermined broadcast using a simple configuration.

The Japan Meteorological Agency uses the National Instantaneous Alarm System (commonly known as J-ALERT) to broadcast emergency alert bulletins on television, and the system also communicates emergency alerts to major locations in the autonomous region. Therefore, the organizer of the autonomous region uses the emergency alert when it is communicated. Disaster prevention administrative non-electric communication equipment, broadcast its information to residents.

Nowadays, earthquakes in Japan often occur and are considered to have entered the period of earthquake activity. The importance of the transmission of information on earthquakes and tsunami has increased to such an extent that it cannot be compared with before.

Then, even if the outdoor sound reinforcement branch of the disaster prevention administrative wireless communication is to be installed in a required place, the installation is troublesome due to wiring work and is a large-scale project. Therefore, in addition to the increase in cost, it is difficult to obtain a large number of power sources. Make sure to set the location of the place.

In such a region, although the autonomous region urges residents to lend to the receivers to allow residents to be indoors, the loans are rarely free in full, and most of them are financially burdensome for residents. In addition, the receivers of the disaster prevention administrative wireless communication in the autonomous region are not only urgently broadcasted, but also include notifications of missing persons and urging children to go home at dusk. Therefore, it is considered that it is mandatory to listen to such broadcasts indoors. Annoying, even if it is set indoors, it will turn off its power and not hear important disaster prevention broadcasts.

Recently, it has been proposed to use a disaster prevention radio instead of a household receiver. If the disaster prevention radio is used, it can be heard as a so-called wireless broadcast (AM/FM broadcast), so convenience is also improved, but even so, there are many People think that mandatory broadcasting is annoying.

In addition, the above-mentioned household receivers and disaster prevention radios are used indoors, and it is impossible to deny that it is sloppy on the notification of the disaster prevention broadcast of the outdoor residents.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an outdoor independent type, and to use an indoor receiver such as a receiver, a live receiver, and a disaster prevention radio, which can be easily constructed, novel, and useful. Outdoor stand-alone broadcast sound reinforcement device.

The present invention has been made in an effort to solve the above-mentioned problems, and the invention of claim 1 is an outdoor independent broadcast sound reinforcement device, which is an outdoor independent unit constructed by a receiver that converts and receives an audio signal when receiving a broadcast wave. A broadcast sound reinforcement device comprising: a solar panel mounted on a pole erected on the ground; a battery for storing electricity generated by the solar panel; and an antenna for receiving broadcast waves and transmitting the signal to the receiver; An external sound amplifying amplifier; the speaker is for amplifying the sound signal from the receiver amplified by the external sound amplifying amplifier; and the control unit follows the start/end of the output of the sound signal from the receiver, The external sound amplifier is turned ON/OFF; the volume adjustment unit adjusts the volume by adjusting the voltage of the audio signal; and the housing accommodates the receiver; and is not limited to the receiver housed in the housing. Type, using the aforementioned battery as a power source, automatically amplifying and broadcasting the sound of the broadcast wave from the aforementioned speaker Signal.

The invention of claim 2 is the outdoor independent broadcast sound reinforcement device according to claim 1, wherein the volume adjustment unit is a fixed partial pressure that divides the voltage of the audio signal by a fixed resistor. The variable voltage divider is divided by a variable resistor, and the insulating transformer is interposed between the voltage dividers.

The invention of claim 3 is the outdoor independent broadcast sound reinforcement device described in claim 1 or 2, wherein the control unit outputs an ON signal when detecting the output of the audio signal. The sound detection function for outputting the OFF signal at the end of the output is detected, the power supply to the external PA amplifier is turned ON when the ON signal is received, and the switching function for turning the power supply OFF when the OFF signal is received, and the OFF signal pair is turned on. The delay function of the input timing delay of the aforementioned switching function.

The invention of claim 4 is the outdoor independent broadcast sound reinforcement device described in claim 3, and the control unit is constituted by a microcomputer.

The invention of claim 5 is an outdoor independent broadcast sound reinforcement device according to any one of claims 1 to 4, which can be used as a receiver to arbitrarily select a household receiver or disaster prevention. Any of the radios.

The invention of claim 6 is the outdoor independent broadcast sound reinforcement device according to any one of claims 1 to 5, wherein the external sound amplifier is also connected to the hand-held microphone, The input sound of the handheld microphone is also broadcasted by sound reinforcement.

According to the outdoor stand-alone broadcast sound reinforcement device of the present invention, the indoor receiver can be used as an independent type and can be easily constructed outdoors.

The household receivers are manufactured by a plurality of manufacturers, and the sizes are originally different. According to the specifications (impedances) of the speaker output terminals, the sound voltage (= output voltage) is also various. This situation is the same for the disaster prevention radio. Moreover, the impedance of the speaker output terminal of the household receiver and the headphone jack of the disaster prevention radio are greatly different. On the other hand, it is not possible to "simplely build" a sound reinforcement device for indoor use.

On the other hand, the outdoor-independent broadcast sound reinforcement device according to the present invention can have a uniform structure without being affected by the above-described receiver side, and can realize a broadcast that is easy to listen to.

1‧‧‧Outdoor independent broadcast sound reinforcement device

3‧‧‧Base section

5‧‧‧ pole

7‧‧‧Control box

9‧‧‧ Housing Department

11‧‧‧ door cover

13‧‧‧door handle

15‧‧‧ keyhole

17‧‧‧Locking mechanism

19‧‧‧Battery for storage battery

21‧‧‧Charging controller

23‧‧‧ housing

25‧‧‧External Acoustic Amplifier (AMP)

27‧‧‧Handheld microphone

29‧‧‧ solar panels

31‧‧‧ bird repeller

33‧‧‧Special antenna

35‧‧‧Speakers

37‧‧‧ Household Receiver

39‧‧‧Disaster prevention radio

41‧‧‧Control substrate

43‧‧‧Power circuit

45‧‧‧Voltage monitoring circuit

47‧‧‧Alarm buzzer

49‧‧‧Sound signal line

51‧‧‧Sound detection signal line

53‧‧‧Sound signal detection circuit

53A‧‧‧Full-wave rectifier circuit

53B‧‧‧ low pass filter

53C‧‧‧Input voltage adjustment circuit

55‧‧‧Distance line

57‧‧‧ON detection circuit

59‧‧‧RS latch circuit

61‧‧‧Switch circuit

63‧‧‧Power supply line

65‧‧‧Distance line

67‧‧‧OFF detection circuit

69‧‧‧Timer circuit

71‧‧‧Reset signal line

73‧‧‧ON/OFF Control Department

75‧‧‧AMP forced drive switch

77‧‧‧Volume adjustment department

79‧‧‧Fixed voltage divider

81‧‧‧Insulation transformer

83‧‧‧Variable voltage divider (volume knob)

Fig. 1 is a front view and a side view of an outdoor free-standing broadcast sound reinforcement device according to an embodiment of the present invention.

FIG. 2 is a view showing a state in which the door of the control box of FIG. 1 is closed.

Fig. 3 is a view showing a state in which the door of the control box of Fig. 2 is opened.

Fig. 4 is a view showing an electrical configuration diagram relating to a battery function portion of the outdoor free-standing broadcast sound reinforcement device of Fig. 1.

Fig. 5 is a view showing an electrical configuration diagram relating to a broadcast function unit of the outdoor free-standing broadcast sound reinforcement device of Fig. 1.

FIG. 6 is an electrical configuration diagram of the sound detecting unit of FIG. 5. FIG.

FIG. 7 is an electrical configuration diagram of the volume adjustment unit of FIG. 5. FIG.

The outdoor free-standing broadcast sound reinforcement device 1 according to the embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, in the outdoor free-standing broadcast sound reinforcement device 1, the pole 5 is integrally erected on the base portion 3, and after the foundation is installed, the foundation bolt is fixed, and the pole 5 is erected on the ground. To set it up. Therefore, the installation place can be easily changed. The mast 5 is very tall and has a height of 7 m.

A control box (frame) 7 is attached to the ground side of the mast 5. As shown in FIGS. 2 and 3, the control box 7 is configured to be a housing portion 9 on the mounting side of the mast 5 and a door cover 11 on the front opening side thereof.

As shown in FIG. 2, a door handle 13 is provided on the surface of the door cover 11, and the key is inserted into the keyhole 15 to be locked.

As shown in Fig. 3, when the door cover 11 is opened, a lock mechanism 17 that operates in conjunction with the door handle 13 described above is attached to the back surface. Further, a battery 19 for electrical storage is provided in the accommodating portion 9. The battery 19 for storage includes a charge controller 21 (FIG. 4). On the upper side of the battery 19 for electrical storage, a casing 23 for accommodating components of a detection and control system to be described later is provided. Further, an external sound amplification amplifier (AMP) 25 is disposed on the right side of the casing 23. Also, the hand-held microphone 27 is connected.

As shown in FIG. 1, a solar panel 29 is attached to the upper side of the mast 5. The bird repeller 31 is fixed to the solar panel 29.

A dedicated antenna 33 is mounted on the upper side of the solar panel 29. Further, in the case of the exclusive use, the length in the up-and-down direction is about 2.5 m, and as described above, the mast 5 is 7 m high, so that no one accidentally touches the lower end of the antenna rod of the dedicated antenna 33 and is injured. . The reception sensitivity is improved by the utilization of the dedicated antenna 33.

At the upper end portion of the mast 5, a plurality of speakers 35 are mounted.

Although not shown in the drawings, the cable connected to the solar panel 29 or the like is pulled into the control box 7 and electrically connected to the components housed therein.

The outdoor free-standing broadcast sound reinforcement device 1 has the above-described external appearance and is a machine specification having a wind speed of 60 m/s.

The outdoor stand-alone broadcast sound reinforcement device 1 also includes an externally identifiable person, and the main function is an electric type, and the casing 23 houses a part for storing the sound reinforcement device 1 together with the receiver.

In the receiver, reference numeral 37 denotes a household receiver, which is a dedicated receiver that receives only radio waves for disaster prevention administrative wireless communication. Assume that the autonomous region is issued to residents.

When the household receiver 37 receives the power supply, it is an independent functionor and has a receiving function and a broadcasting function.

Since the home receiver 37 includes an attached internal antenna and is housed in the casing 23, the antenna connector of the dedicated antenna 33 (FIG. 1) is pulled into the casing 23 to secure the receiving state. The household receiver 37 in the body 23.

Further, the power source of the household receiver 37 is usually a dry battery, but since solar power is used, a dry battery is not required.

In the receiver, reference numeral 39 denotes a disaster prevention radio. The disaster prevention radio 39 has the same function as the home receiver 37, and thus other stations can be selected.

Instead of the home receiver 37, the disaster prevention radio 39 may be stored in the casing 23.

According to the autonomous region, there is also a place where the user can receive the receiver, and there is also a place where the disaster prevention radio is used. However, in the outdoor independent broadcast sound reinforcement device 1, as described above, any one can be used as the output side of the audio signal.

Moreover, even if it is a household receiver, the size is different depending on the manufacturer, and the same is true for the disaster prevention radio. The storage space of the casing 23 corresponds to various existing household receivers and disaster prevention radios, and any of them can be accommodated. .

The receivers 37 and 39 described above receive power supply from a power supply circuit to be described later. The power supply circuit is variable in a wide range of 1.5 to 9V, and can correspond to a plurality of types of receivers, respectively.

Therefore, when the power supply switch (not shown) is turned off, the receivers 37 and 39 can normally wait silently, and when receiving the radio wave of the disaster prevention administrative wireless communication from the dedicated antenna 33, the forced broadcast switch can be turned on by forcibly broadcasting. .

Hereinafter, the structure and operation of the parts will be described in detail according to the respective functions.

 <Battery Function Department: Figure 4>  

Reference numeral 41 denotes a control substrate, and each function is realized centering on the control substrate 41.

The electric power generated by daylight sunlight by the solar panel 29 (FIG. 1) is stored in the battery 19 for storage, and a 12V power supply is formed, and the power is supplied to the power supply circuit 43 of the control board 41. Supply to each part.

In the power supply circuit 43, in order to monitor the fluctuation of the terminal voltage, a voltage monitoring circuit 45 composed of a comparator circuit is provided, and when it is 11 V or less, the battery voltage lowering alarm buzzer 47 is turned on. Although not shown, the alarm buzzer 47 is provided on the front side of the control box 7, and even if the control box 7 is not opened, the outside person hears the sound.

As described above, since it operates as an independent power source, it can be installed in any place regardless of the power source. Moreover, since the battery 19 for electricity storage is used, the broadcasting function which will be described later acts even at night.

 <Audio Broadcasting Department: Figure 5>    [Disaster prevention administrative radio communication broadcast]  

The audio signals output from the receivers 37, 39 are transmitted to the audio signal line 49, and are outputted to the external sound amplifier (ANP) 25 (Fig. 5).

The sound detecting signal line 51 is extended from the sound signal line 49, and the sound signal detecting circuit 53 is installed on the sound detecting signal line 51.

The audio signal detecting circuit 53 also receives power supply from the power supply circuit 43 described above.

In the audio signal detecting circuit 53, as shown in FIG. 6, the sound detecting signal output from the sound detecting signal line 51 is first rectified by the full-wave rectifying circuit 53A, and the lower limit filter 53B is used to remove the predetermined value. Frequency component. Then, by the input voltage adjusting circuit 53C, the voltage is adjusted to, for example, 1 to 20 times.

In addition, input to the main detection circuit. The main detection circuit is divided into two branch lines 55 and 65. From one of the branch lines 55, the signal is input to the ON detection circuit 57 for detecting the output of the audio signal. The ON detecting circuit 57 is provided with a comparator that generates and outputs an ON signal when it exceeds the set receiver ON voltage level. The ON signal is supplied to the switching circuit (power high-side circuit) 61 as a driving signal through the RS latch circuit 59, and the power supply line 63 from the power supply circuit 43 to the external sound amplifying amplifier (AMP) 25 is turned on. Drive an external sound amplifier (AMP) 25.

From the other branch line 65, the signal is input to the OFF detecting circuit 67 which detects the end of the output of the sound signal. The OFF detecting circuit 67 is provided with a comparator and a capacitor. When the set OFF voltage level is exceeded, an OFF signal is generated and output.

This OFF signal is also input to the RS latch circuit 59 in the same manner as the ON signal. When the ON signal is input, the RS latch circuit 59 is electrically held and continuously drives the external sound amplifier (AMP) 25. However, when the OFF signal is input, the self-holding state is released. Therefore, the control signal is not output from the RS latch circuit 59, and the switch circuit 61 blocks the power supply line 63, so that the external sound amplifier (AMP) 25 is stopped.

Reference numeral 69 denotes a timer circuit which sets the time constant due to the capacitor and the resistor to the time of the timer, and can be adjusted in 5 to 15 sec. The timer circuit 69 starts counting when a trigger signal is input, and outputs a signal when the set time is exceeded.

The timer circuit 69 is installed on the sound detecting signal line 51 and uses the OFF signal as a trigger point. By the installation of the timer circuit 69, even if the sound is interrupted during the broadcast, the ON/OFF operation is not performed, so that the circuit is not burdened.

Furthermore, the reset signal line 71 is connected to the timer circuit 69. Therefore, when the ON signal is output, the reset signal is input to the timer circuit 69, and the timing is reset.

In the above-described configuration, the control substrate 41 as the control unit includes the ON detection circuit 57 and the OFF detection circuit 67 as the sound detecting circuit, and the RS latch circuit 59 as the switching portion of the self-retaining property, and has the weight. The function timer circuit 69 realizes the function, and when the dedicated antenna 33 starts receiving the radio wave for the disaster prevention administrative wireless communication, the external sound amplifier (AMP) 25 is turned ON, and the content is automatically amplified from the speaker 35, and the content ends. The external sound amplifier (AMP) 25 is turned OFF.

In the above, the ON/OFF control unit 73 is configured by the ON detecting circuit 57 or the like, but the microcomputer (PIC) is mounted on the substrate to constitute the ON/OFF control unit 73 instead of the various circuits.

When a microcomputer (PIC) is used, it is necessary to burn a new program into a microcomputer when changing the setting of the timer time or the like. However, compared with the operation of the recombination circuit, the advantage is that the work is easy.

Further, the portable microphone 27 is also connected to the broadcast, but the external microphone amplifier 25 is forcibly turned ON so that the hand microphone 27 can be used independently of the sound broadcast of the disaster prevention administrative wireless communication. The AMP forces the drive switch 75. The switch 75 is of a manual operation type, and when the hand-held microphone 27 is used, the ON state continues once pressed.

Further, a volume adjustment unit 77 is interposed between the audio signal line 49 and the external sound amplification amplifier (AMP) 25.

Both the household receiver 37 and the disaster prevention radio 39 are automatically broadcast at the maximum volume even when the emergency information is received, even in the state where the power is OFF or the situation of the disaster prevention radio 39, even in the case of selecting another station. .

However, the household receiver 37 and the disaster prevention radio 39 have different sound voltages depending on the specifications of the output terminals, and even if they are classified as the household receivers 37, the voltage corresponding to the maximum volume is the manufacturer. Everything is different. This situation is also the same for the disaster prevention radio 39. In addition, the disaster prevention administrative radio communication broadcasting system is broadcasted through the broadcasting center installed in the district office or the fire station. However, in the broadcasting center, the volume can be adjusted. The content of the broadcast is also as described above, and the child is urged to go home at dusk. There is a situation in which the volume is actively changed according to the broadcast content. Therefore, in the standby state, the setting of the sound voltage is various, and the contractor cannot actually grasp it.

Therefore, the setting process is performed in the field, and only the audio signals from the receivers 37 and 39 are output, and the audio signals of the various sound voltages on the sides of the receivers 37 and 39 are sent to the external sound amplifying amplifier (AMP) 25, so that Broken or leaking sounds.

Therefore, the volume adjustment unit 77 is provided to automatically send the audio signal of the adjusted sound voltage to the external sound amplification amplifier (AMP) 25 even if the sound voltage on the sides of the receivers 37 and 39 is not recognized.

The volume adjustment unit 77 first inputs an audio signal to the fixed voltage divider 79. In the fixed voltage divider 79, the two voltages of the resistor R1 and the resistor R2 (R1>R2) connected in series are used, and the sound voltage is divided by the predetermined voltage dividing ratio, and the voltage value of the voltage dividing point in the middle is set as the output value. .

Then, in order to stabilize the sound signal divided by the resistor, the insulating transformer 81 is connected to the side of the variable voltage divider 83.

The variable voltage divider 83 is constituted by a volume knob (VR) and can be manually fine-tuned. Furthermore, the impedance is set to 600 Ω in response to the input of the moving coil microphone.

The output impedance of the household receiver 37 is 4 to 16 Ω, and the output impedance of the disaster prevention radio 39 is 2 kΩ or more, which is quite different, but it is used even if it is not aware of which type of receiver is stored, or even if it is not in the broadcasting center. The volume adjustment is performed, and the occurrence of breakage can be prevented by the above-described volume adjustment unit 77. If it is the sound voltage level of the household receiver 37, it is mainly adjusted by the fixed voltage divider 79, but in the case of the disaster prevention radio 39 with a high sound voltage, by the use of the volume knob (VR), it is finally lowered to Suitable for the voltage input to the amplifier.

By fine-tuning the volume down knob (VR), you can set the appropriate range without breaking the sound and not leaking.

According to the above configuration, even if one of the receivers 37 and 39 for indoor use is selected, the selected receiver can be housed in the casing 23 by the installation work of the mast 5 and the like, and the wiring can be constructed to form an outdoor unit. The stand-alone broadcast sound reinforcement device 1 is also not limited to the installation place because it is an independent power source.

Moreover, since the receivers 37 and 39 are housed in the locked control box 7, there is no need to worry about being stolen.

Therefore, as a base station for disaster prevention administrative wireless communication, the convenience is very high.

The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to the embodiment, and modifications may be made without departing from the scope of the invention.

For example, the receiver may be a silent standby, for example, a dedicated application may be installed on a smart phone, such as an iPhone (registered trademark) manufactured by Apple Inc., and only a specific broadcast wave may be received by Wi-Fi. Way composition.

Claims (6)

 An outdoor independent broadcast sound reinforcement device is an outdoor independent broadcast sound reinforcement device constructed by a receiver that converts and receives an audio signal when receiving a broadcast wave, and is characterized in that: a solar panel is installed and erected a pole on the ground; a battery that stores electricity generated by the solar panel; an antenna that receives broadcast waves and sends it to the receiver; an external sound amplifier; a speaker that is amplified by the external sound amplifier from the foregoing The sound signal of the receiver is used for sound reinforcement broadcasting; the control unit switches the start/end of the output of the audio signal from the receiver to turn the external sound amplifier into ON/OFF; and the volume adjustment unit adjusts the sound The voltage of the signal is used to adjust the volume; and the housing is for storing the receiver; the type of the receiver stored in the housing is not limited to the type of the receiver, and the battery is used as a power source to automatically broadcast and broadcast the broadcast from the speaker. The sound signal of the electric wave.    The outdoor independent broadcast sound reinforcement device according to the first aspect of the invention, wherein the volume adjustment unit divides the voltage of the sound signal by a fixed resistor and divides the voltage by a variable resistor. The variable voltage divider is constructed by interposing an insulating transformer mounted between the voltage dividers.    The outdoor stand-alone broadcast sound reinforcement device according to the first or second aspect of the patent application, wherein the control unit outputs an ON signal when detecting an output of the audio signal, and outputs an OFF when the output is detected. The signal detection function of the signal, when the ON signal is received, the power supply to the external PA amplifier is turned ON, the switching function for turning off the power supply when the OFF signal is received, and the delay of the input signal delay of the OFF signal to the switching function are delayed. Features.    The outdoor stand-alone broadcast sound reinforcement device according to claim 3, wherein the control unit is configured by a microcomputer.    An outdoor stand-alone broadcast sound reinforcement device as described in claim 1 or 2, wherein the receiver can be arbitrarily selected from any of a household receiver or a disaster prevention radio.    An outdoor stand-alone broadcast sound reinforcement device as described in claim 1 or 2, wherein the external sound amplifier is also connected to the hand-held microphone, and the input sound from the hand-held microphone is also broadcasted.