Novel multi-split wireless audio explanation machine device

Abstract

The utility model relates to a novel multi-split wireless audio explanation machine device, which comprises a multi-split wireless audio explanation machine body, a wireless receiving circuit and a detection mechanism, each extension set is provided with a set of detection mechanism, and the wireless receiving circuit is installed in a host shell. Each set of detection mechanism comprises a detection circuit and a delay emission circuit; the signal output end of the detection circuit is electrically connected with the signal input end of the delay transmission circuit; the signal input end of the detection circuit is electrically connected with one audio output end of the extension power amplification system. When no audio signal enters the loudspeaker at the extension set, the wireless transmitting circuit module can transmit different wireless closing signals at the first time, and after the wireless receiving circuit at the host receives the different signals, different light emitting diodes can emit light to prompt personnel at the host and arrange related personnel to timely eliminate faults, so that the safety of the host is improved. The explaining and speaking contents and the like of the personnel at the host can reach corresponding positions as much as possible, and the explaining and speaking effects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless audio guide equipment, in particular to a novel one-to-multi-channel wireless audio guide device. Background Art

[0002] The one-to-many wireless audio guide is an audio playback device used in public areas such as exhibition halls and scenic spots. It mainly includes a host and extensions. In specific applications, users use the wired or wireless microphones of the host to give voice explanations and speeches, and then the host processes the audio signal and sends it out wirelessly. Within a certain range (usually a few hundred meters), multiple extensions located in different locations receive the audio wireless signal, and their internal processing systems process and convert the audio signal and play it out through speakers. In this way, other people who are far away from the host can hear the explanation or speech of the person at the host synchronously, which improves the transmission effect of the explanation and speech content.

[0003] Although the existing one-to-many wireless audio guide machine can meet the transmission and reception of audio to a certain extent, it is limited by the structure and still has the following technical problems to be solved. Specifically, since the host and multiple extensions are in a wireless state and the distance between them is relatively far, if one or more corresponding extensions fail and cannot play the sound (for example, the wireless receiving system or power amplifier system of the extension fails), the host staff is not aware of it and cannot promptly notify the relevant staff to debug and maintain it, which will have an adverse effect on the effective explanation and speech of the host staff. In summary, it is particularly necessary to provide a one-to-many wireless audio guide machine device that can promptly and wirelessly remind the host staff when a problem occurs in the corresponding extension. Utility Model Content

[0004] In order to overcome the drawbacks of the existing one-to-many-channel wireless audio tour guide equipment as described in the background due to structural limitations, the utility model provides a one-to-many-channel wireless audio tour guide equipment body. In application, multiple extensions can perform self-checks. When no audio signal enters the speaker due to various reasons, the host personnel can be promptly notified wirelessly and relevant personnel can be arranged to eliminate the fault in a timely manner, thereby ensuring that the explanations and speeches of the host personnel can reach the corresponding positions as much as possible, thereby improving the explanation and speech effects.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel one-to-many-channel wireless audio guide device comprises a one-to-many-channel wireless audio guide body, characterized in that it also has a wireless receiving circuit and a detection mechanism; the detection mechanism has multiple sets of the same, each extension is respectively equipped with a set of detection mechanisms, and the wireless receiving circuit is installed in the main body shell; each set of detection mechanisms comprises a detection circuit and a delayed transmission circuit; the signal output end of the detection circuit is electrically connected to the signal input end of the delayed transmission circuit; the signal input end of the detection circuit is electrically connected to one of the audio output ends of the extension power amplifier system.

[0007] Furthermore, the detection circuit of each detection mechanism includes an electrically connected diode, a transistor, and a resistor, the cathode of the diode is connected to one end of the resistor, the other end of the resistor is connected to the base of the first transistor, and the collector of the first transistor is connected to the base of the second transistor.

[0008] Furthermore, the delayed transmission circuit of each set of detection mechanism includes an electrically connected resistor, a transistor, a relay, a time relay module and a wireless transmission circuit module, the positive power input terminal of the wireless transmission circuit module is connected to the normally closed contact terminal of the relay, the positive power input terminal and the control power input terminal of the relay are connected to the positive power input terminal of the time relay module, one end of the resistor is connected to the base of the transistor, the collector of the transistor is connected to the negative power input terminal of the relay, the output end of the time relay module is connected to the other end of the resistor, the negative power input terminal and the negative control power input terminal of the time relay module, the emitter of the transistor, and the negative power input terminal of the wireless transmission circuit module are connected.

[0009] Furthermore, in the delayed transmission circuits of the multiple sets of detection mechanisms, two contacts under one of the transmission buttons of the wireless transmission circuit modules are electrically connected together.

[0010] Furthermore, the wireless receiving circuit includes an electrically connected wireless receiving circuit module, a resistor, and a light-emitting diode. The four output ends of the wireless receiving circuit module are respectively connected to one end of four resistors, the other ends of the four resistors are respectively connected to the positive electrodes of four light-emitting diodes, and the negative electrodes of the four light-emitting diodes are connected to the negative power input end of the wireless receiving circuit module.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model is based on a one-to-many wireless audio explanation machine device body. In the application, the detection mechanisms at multiple extensions can perform self-tests on audio playback. When there is a failure in the wireless receiving system or power amplifier system at the extension due to various reasons and no audio signal enters the speaker (causing the speaker to not make a sound), the wireless transmitting circuit module can immediately emit different wireless closing signals. After the wireless receiving circuit at the host receives different signals, different light-emitting diodes can be used to light up to prompt the host personnel and arrange for relevant personnel to eliminate the fault in time, thus ensuring that the explanations and speeches of the host personnel can reach the corresponding positions as much as possible, and improving the effect of the explanations and speeches. In summary, the utility model has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 , 3 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0015] Figure 1 , 2 As shown in , 3, a new type of one-to-many-channel wireless audio guide device includes a one-to-many-channel wireless audio guide body with a host 1 and four extensions 2 (not limited to four), and also has a wireless receiving circuit 3 and a detection mechanism 4; the detection mechanism 4 has four identical sets, and each extension 2 has a set of detection mechanisms 4 installed on the circuit board in the shell, and the wireless receiving circuit 3 is installed on the circuit board in the shell of the host 1; each set of detection mechanisms includes a power module AA1, a detection circuit 41, and a delayed transmission circuit 42.

[0016] Figure 1 , 2As shown in , 3, the detection circuit of each detection mechanism includes a diode VD, transistors Q1 and Q2, and a resistor R1 connected via circuit board wiring, the cathode of the diode VD is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the base of the first transistor Q1, and the collector of the first transistor Q1 is connected to the base of the second transistor Q2. The delayed transmission circuit of each detection mechanism includes a resistor R2, a transistor Q3, a relay K1, a time relay module A6 and a wireless transmission circuit module A3 connected through circuit board wiring, the positive power input terminal 1 pin of the wireless transmission circuit module A3 is connected to the normally closed contact terminal of the relay K1, the positive power input terminal and the control power input terminal of the relay K1 are connected to the positive power input terminal 1 pin of the time relay module A6, one end of the resistor R2 is connected to the base of the transistor Q3, the collector of the transistor Q3 is connected to the negative power input terminal of the relay K1, the output terminal 5 pin of the time relay module A6 is connected to the other end of the resistor R2, the negative power input terminal 2 pin of the time relay module A6 and the negative control power input terminal 4 pin, the emitter of the transistor Q3, and the negative power input terminal 2 pin of the wireless transmission circuit module A3 are connected. The delayed transmission circuits of the four detection mechanisms, whose wireless transmission circuit modules A3 respectively have four wireless transmission buttons (not limited to four), the two contacts under the first transmission button S1 of the first detection mechanism wireless transmission circuit module are connected together by a wire, the two contacts under the two transmission buttons S2 of the second detection mechanism wireless transmission circuit module are connected together by a wire, the two contacts under the third transmission button S3 of the third detection mechanism wireless transmission circuit module are connected together by a wire, the two contacts under the fourth transmission button S4 of the fourth detection mechanism wireless transmission circuit module are connected together by a wire, and the transmission buttons connected by two contacts of the four detection mechanism wireless transmission circuit modules are inconsistent. The wireless receiving circuit includes a wireless receiving circuit module A5 and resistors R, R5, R6, R7, and light-emitting diodes VL, VL1, VL2, and VL3 connected via circuit board wiring. The four output terminals 3, 4, 5, and 6 of the wireless receiving circuit module A5 are respectively connected to one end of four resistors R, R5, R6, and R7. The other ends of the four resistors R, R5, R6, and R7 are respectively connected to the positive electrodes of four light-emitting diodes VL, VL1, VL2, and VL3. The negative electrodes of the four light-emitting diodes VL, VL1, VL2, and VL3 are connected to the negative power input terminal 2 of the wireless receiving circuit module A5.

[0017] Figure 1 , 2As shown in Figure 3, the wireless receiving circuit is equipped with a power module A4. The power input pins 1 and 2 of the power module A4 are connected to the two poles of the AC 220V power supply in the host through wires, and the power output pins 3 and 4 of the power module A4 are connected to the power input pins 1 and 2 of the wireless receiving circuit module A5 through wires. The power input pins 1 and 2 of the power module AA1 are connected to the two poles of the AC 220V power supply at the extension through wires, and the power output pins 3 and 4 of the power module AA1 are connected to the emitter of the transistor Q2 and the emitter of the transistor Q1 at the power input of the detection circuit, and the positive power input of the relay K1 and the emitter of the transistor Q3 at the power input of the delay transmission circuit through wires. The collector of the transistor Q2 at the signal output of the detection circuit and the 3rd pin of the time relay module A6 at the signal input of the delay transmission circuit are connected through wires. The positive electrode of the diode VD at the signal input end of the detection circuit is connected to one of the audio output ends of the extension power amplifier system A2 via a wire, and the negative electrode of the DC power input end of the extension is connected to the emitter of the transistor Q1 at the negative power input end of the detection circuit and the emitter of the transistor Q3 at the negative power input end of the delay transmission circuit via a wire. In the present invention, the power module and the power module A can also be directly powered by a 12V battery.

[0018] Figure 1 , 2 As shown in Figure 3, the new wireless audio explanation machine is based on a one-to-many-channel device. In specific applications, the user uses the wired or wireless microphone of the host to give voice explanations and speeches, and then the host 1 processes the audio signal and sends it out wirelessly. Within a certain range (generally a few hundred meters), the four extensions 2 located at different locations receive the audio wireless signal, and their internal processing systems process and convert the audio signal and play it out through the speaker. In this way, other people who are far away from the host can synchronously hear the explanation or speech content of the person at the host, which improves the transmission effect of the explanation and speech content (the above is an existing mature technology, and this application will not repeat it, nor will it provide any protection for the above technical solution).

[0019] Figure 1 , 2As shown in Figures 3 and 4, in the present invention, after the AC power enters the power input terminal of the power module A4, the 3rd and 4th pins of the power module A4 output a stable DC 12V power supply which enters the power input terminal of the wireless receiving circuit module, and the above modules are powered on and work. After the AC power enters the power input terminal of the power module AA1, the 3rd and 4th pins of the power module AA1 output a stable DC 12V power supply which enters the negative power input terminal of the detection circuit and the power input terminal of the delayed transmission circuit, and the above circuits are powered on and work. In each extension, when the extension works normally, the AC signal output from one of the audio output terminals of the power amplifier system A2 enters the base of the transistor Q1 through half-wave rectification by the diode VD and current reduction and current limiting by the resistor R1, the collector of the transistor Q1 is turned on and the output is low level and enters the base of the transistor Q2, the collector of the transistor Q2 outputs a high level and enters the positive trigger signal input terminal 3 of the time relay module A6, then, the pin 5 of the time relay module A6 outputs a high level for a period of time (for example, 120 seconds, the actual time is adjustable), and enters the base of the transistor Q3 through the voltage reduction and current limiting by the resistor R2, the collector of the transistor Q3 is turned on and the output is low level and enters the negative power input terminal of the relay K1, the relay K1 is energized to attract its control power input terminal and the normally closed contact terminal to open, then, the wireless transmitting circuit module A3 will not be energized to work, and will not transmit wireless signals. When one or more corresponding extensions are not working properly (for example, the wireless receiving system or power amplifier system of the extension fails), one of the audio output terminals of the power amplifier system A2 stops outputting AC signals. Since the positive trigger signal input terminal pin 3 of the time relay module A6 will not input a high-level signal, pin 5 of the time relay module A6 stops outputting a high level after an interval of 120 seconds, and the relay K1 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close. Since the two contacts under different transmitting buttons S1 or S2, S3, S4 of the wireless transmitting circuit modules at the four extensions are connected together through wires, when the first extension or the second extension, the third extension, or the fourth extension has a problem, the wireless transmitting circuit module A3 at the corresponding extension will transmit the first or the second, third, or fourth wireless closing signal. Within a range of 400 meters, after the wireless receiving circuit module A4 at the host receives the first or second, third, or fourth wireless closing signal, its 3 or 4, 5, 6 feet will output a high level, which will enter the positive power input terminal of the light-emitting diode VL or VL1, VL2, VL3 through the resistor R or R5, R6, R7 for voltage reduction and current limiting, so that the light-emitting diode VL or VL1, VL2, VL3 will be powered and emit light. By observing the light-emitting prompts of different light-emitting diodes, the personnel at the host can promptly understand that there is a problem with the extension at the corresponding position of the corresponding light-emitting diode, and arrange relevant personnel to eliminate the fault in time, so as to ensure that the explanation and speech content of the personnel at the host can reach the corresponding position as much as possible, and improve the effect of explanation and speech. In this application.In general, the personnel at the host will not speak again after a 2-minute interval. That is to say, as long as the 3rd pin of the time relay module A6 does not input a high level every 120 seconds, its 5th pin will output a high level, the transistor Q3 conduction relay K1 will be energized and the wireless transmission circuit module A3 will not transmit a wireless signal. Only when one or more corresponding extensions do not work properly for 120 consecutive seconds and the 3rd pin of the corresponding one or more time relay modules A6 does not input a high level signal, the 5th pin of the corresponding one or more time relay modules A6 will stop outputting power, and then the corresponding one or more wireless transmission circuit modules A3 will transmit a wireless signal. The 120-second delay effectively prevents the delay time from being too short and the relevant personnel at the host from speaking at normal intervals, which causes the wireless transmission circuit module A3 to transmit wireless signals unnecessarily, and one or more corresponding light-emitting diodes will light up, causing unnecessary interference to the judgment of the personnel at the host.

[0020] Figure 2 , 3As shown, transistors Q1 and Q3 are NPN transistors of model 9013; transistor Q2 is a PNP transistor of model 9012; the resistance values ​​of resistors R1, R2, R, R5, R6, and R7 are 4.7K, 47K, 1.8K, 1.8K, 1.8K, and 1.8K respectively; power module AA1 and power module A4 are AC 220V to 12V DC power blocks; relay K1 model is DC12V; light-emitting diodes VL or VL1, VL2, and VL3 are red, green, blue, and yellow light-emitting diodes (the light-emitting surface is located outside the front opening of the host shell); diode VD model is 1N4007; wireless transmitting circuit module A3 and wireless receiving circuit module A5 are finished products of four-way wireless remote control receiving kits of model PT / SC2262 / 2272 (The function and working principle of the wireless transmitting and receiving components used in automobiles, etc. are consistent), the wireless signal receiving and sending distance is 400 meters, the wireless remote control kit finished product in this embodiment uses four sets of wireless remote control component finished products (with two power input terminals, four wireless signal transmitting buttons), and one set of wireless receiving component finished products (with two power input terminals, four high-level output terminals and one pulse output terminal, in this embodiment, the pulse output terminal 7 pin is suspended); the time relay module A6 is a delay time relay module finished product of model K1305-V2.1, which has two power input terminals, two trigger signal input terminals, four setting buttons, and one power output terminal. By operating the four setting buttons, the time interval and duration of the power output terminal outputting power after the trigger signal input terminal inputs the trigger signal. It should be noted that this application is not intended to be comprehensive. The purpose of the invention is to detect the main faults at the extension, and no audio signal is output to the speaker. The detection of other faults at the extension (such as speaker faults, circuit overheating or power failure, etc.) does not fall within the scope of protection of this application. It should also be noted that when the host is just turned on and the person at the host does not make any sound, the light-emitting diodes VL or VL1, VL2, VL3 will light up for a short time, and the person at the host can ignore it. After speaking, since there is no corresponding wireless signal transmission, the light-emitting diodes VL or VL1, VL2, VL3 will lose power and no longer light up.

[0021] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

[0022] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel one-to-many-channel wireless audio guide device, comprising a one-to-many-channel wireless audio guide body, characterized in that: It also has a wireless receiving circuit and a detection mechanism; there are multiple sets of the same detection mechanism, and each extension is equipped with a set of detection mechanism, and the wireless receiving circuit is installed in the main body shell; each set of detection mechanism includes a detection circuit and a delayed transmission circuit; the signal output end of the detection circuit is electrically connected to the signal input end of the delayed transmission circuit; the signal input end of the detection circuit is electrically connected to one of the audio output ends of the extension power amplifier system.

2. The novel one-to-many-channel wireless audio guide device according to claim 1 is characterized in that: The detection circuit of each detection mechanism includes an electrically connected diode, a transistor, and a resistor. The cathode of the diode is connected to one end of the resistor, the other end of the resistor is connected to the base of the first transistor, and the collector of the first transistor is connected to the base of the second transistor.

3. The novel one-to-many-channel wireless audio guide device according to claim 1 is characterized in that: The delayed transmission circuit of each detection mechanism includes an electrically connected resistor, a transistor, a relay, a time relay module and a wireless transmission circuit module. The positive power input terminal of the wireless transmission circuit module is connected to the normally closed contact terminal of the relay, the positive power input terminal and the control power input terminal of the relay are connected to the positive power input terminal of the time relay module, one end of the resistor is connected to the base of the transistor, the collector of the transistor is connected to the negative power input terminal of the relay, the output end of the time relay module is connected to the other end of the resistor, and the negative power input terminal and the negative control power input terminal of the time relay module, the emitter of the transistor, and the negative power input terminal of the wireless transmission circuit module are connected.

4. The novel one-to-many-channel wireless audio guide device according to claim 3 is characterized in that: The delayed transmission circuit of multiple detection mechanisms has two contacts under one of the transmission buttons of the wireless transmission circuit module electrically connected together.

5. The novel one-to-many-channel wireless audio guide device according to claim 1 is characterized in that: The wireless receiving circuit includes an electrically connected wireless receiving circuit module, a resistor, and a light-emitting diode. The four output ends of the wireless receiving circuit module are respectively connected to one end of four resistors, the other ends of the four resistors are respectively connected to the positive electrodes of four light-emitting diodes, and the negative electrodes of the four light-emitting diodes are connected to the negative power input end of the wireless receiving circuit module.

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