CN216904880U - Receiver of guide explanation machine and guide explanation machine - Google Patents
Receiver of guide explanation machine and guide explanation machine Download PDFInfo
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- CN216904880U CN216904880U CN202220406059.0U CN202220406059U CN216904880U CN 216904880 U CN216904880 U CN 216904880U CN 202220406059 U CN202220406059 U CN 202220406059U CN 216904880 U CN216904880 U CN 216904880U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a receiver of a guide explaining machine and the guide explaining machine, wherein the receiver comprises a shell, a receiver circuit and a listening cylinder part, and a loudspeaker electrically connected with the receiver circuit is arranged in the listening cylinder part; the receiver circuit comprises a low-power-consumption 2.4G radio frequency chip, an antenna, a matching network, a radio frequency power amplifier, a power supply circuit and an audio decoding circuit; the antenna, the radio frequency power amplifier, the matching network and the low-power-consumption 2.4G radio frequency chip are sequentially and electrically connected, and the radio frequency power amplifier amplifies the power of a wireless signal received by the antenna, sends the wireless signal to the matching network for frequency selection and then sends the wireless signal to the low-power-consumption 2.4G radio frequency chip; the audio decoding circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the loudspeaker, and the power supply circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the audio decoding circuit. The utility model ensures that the receiver of the tour guide explaining machine has long working distance and long working time and ensures the sound quality.
Description
Technical Field
The utility model relates to the technical field of tour guide interpreters, in particular to a receiver of a tour guide interpreter and the tour guide interpreter.
Background
The tour guide explaining machine is a machine applied to tour guide of scenic spots to explain and a tourist to listen, and comprises a transmitter and a receiver.
The transmitter is worn by the tourist, the voice explained by the tourist is collected by the transmitter and transmitted outwards, the receiver is worn by the tourist, and the receiver receives the voice signal sent by the transmitter and decodes and plays the voice signal for the tourist to listen to.
There are three main types of receiver products on the market:
1. the 2.4G digital frequency hopping scheme has good sound, but is close to the distance and is easily influenced by obstacles.
2. The UHF frequency band single-chip scheme has good sound, but large working current and short working time, and is not suitable for an ear-hanging earphone.
3. The UHF frequency band ultra-inner difference split type receiving scheme has complex circuit and less channels, and is not suitable for the environment with large crowd use density.
The first 2.4G digital frequency hopping scheme receiver is used in the market, but the scheme receiver has the following problems:
firstly, the working distance is short, signals or weak signals cannot be received when the working distance is far away, and no sound or unclear sound exists when the working distance is up;
secondly, the receiver has large current, fast power consumption and short working time when in work;
thirdly, the number of channels is small, which causes a plurality of transmitters to operate simultaneously, and the problem of interference occurs.
Therefore, the prior art has yet to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a receiver of a guide explaining machine, which is designed to ensure long working distance and long working time of the receiver of the guide explaining machine and ensure sound quality.
In order to realize the purpose, the utility model adopts the following technical scheme:
a receiver of a guide explaining machine comprises a shell, a receiver circuit arranged in the shell, and a receiver part arranged on the shell, wherein a loudspeaker electrically connected with the receiver circuit is arranged in the receiver part;
the receiver circuit comprises a low-power-consumption 2.4G radio frequency chip, an antenna, a matching network, a radio frequency power amplifier, a power supply circuit and an audio decoding circuit;
the antenna, the radio frequency power amplifier, the matching network and the low-power-consumption 2.4G radio frequency chip are sequentially and electrically connected, and the radio frequency power amplifier amplifies the power of a wireless signal received by the antenna, sends the wireless signal to the matching network for frequency selection and then sends the wireless signal to the low-power-consumption 2.4G radio frequency chip;
the audio decoding circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the loudspeaker, and is used for decoding the audio signals sent by the low-power-consumption 2.4G radio frequency chip and sending the audio signals to the loudspeaker for playing;
the power supply circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the audio decoding circuit.
The model of the low-power-consumption 2.4G radio frequency chip is IN 310.
The chip type of the radio frequency power amplifier is AT2401C or RFX 2401C.
The audio decoding circuit comprises an audio decoding chip, and the model of the audio decoding chip is CL 1026.
The power supply circuit comprises a charge and discharge management chip, a battery and a voltage stabilizing chip;
the charging and discharging management chip is electrically connected with a charging interface and the battery, and the voltage stabilizing chip is electrically connected with the battery, the low-power-consumption 2.4G radio frequency chip and the audio decoding circuit.
Wherein, the voltage stabilization chip comprises a 3.3V voltage stabilization chip and a 1.8V voltage stabilization chip.
The model of the 3.3V voltage stabilizing chip is LN1134A332, and the model of the 1.8V voltage stabilizing chip is LN1134A182 MR.
And the shell is also provided with a key electrically connected with the low-power-consumption 2.4G radio frequency chip.
And the shell is also provided with an LED lamp which is electrically connected with the low-power consumption 2.4G radio frequency chip.
The utility model also provides a tour guide explaining machine, which comprises the receiver and a transmitter for transmitting wireless signals to the receiver.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (in the embodiments) can be combined with each other to constitute a new or preferred technical solution, to be limited to space, and not to be described in any more detail herein.
According to the receiver of the guide explaining machine, the radio frequency power amplifier is additionally arranged at the antenna receiving end, the amplification gain is improved, the receiving distance is improved, and meanwhile, the low-power-consumption 2.4G radio frequency chip is adopted, so that the working current of the whole machine is greatly reduced, the power consumption is reduced, and the working time is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic circuit diagram of a first embodiment of a receiver of a tour guide interpreter according to the present invention;
FIG. 2 is a schematic diagram of a first embodiment of a receiver of the tour guide interpreter according to the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic circuit diagram of a low power consumption 2.4G RF chip in the receiver circuit;
FIG. 5 is a schematic diagram of the electrical connections of the antenna, RF power amplifier, and matching network;
FIG. 6 is a schematic circuit diagram of an audio decoding chip;
FIG. 7 is a schematic diagram of the circuit connection between the charge and discharge management chip and the battery;
FIG. 8 is a schematic diagram of the circuit connection of the voltage regulator chip;
FIG. 9 is a schematic structural diagram of a second embodiment of a receiver of the tour guide interpreter according to the present invention;
FIG. 10 is a schematic view of the backside structure of FIG. 9;
fig. 11 is an exploded view of fig. 9.
Description of reference numerals:
100-receiver, 1-shell, 2-receiver circuit, 21-low power consumption 2.4G radio frequency chip, 22-antenna, 23-matching network, 24-radio frequency power amplifier, 25-power supply circuit, 251-electricity management chip, 252-battery, 253-voltage stabilization chip, 2531-3.3V voltage stabilization chip, 2532-1.8V voltage stabilization chip, 26-audio decoding circuit, 261-audio decoding chip, 3-earphone part, 4-horn, 5-charging interface, 6-LED lamp, 7-key, 8-earplug gum cover, 9-sound outlet hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In a first embodiment, referring to fig. 1 to 3, the present invention provides a receiver 100 of a guide explaining machine, including a housing 1, a receiver circuit 2 disposed in the housing 1, and a earpiece portion 3 disposed on the housing 1, wherein a speaker 4 electrically connected to the receiver circuit 2 is disposed in the earpiece portion 3. The housing 1 of the present invention includes a front case and a rear case. As shown in fig. 2 and 3, the earpiece portion 3 of the first embodiment is an in-ear type earplug, which is convenient for being inserted into an ear. Preferably, the earpiece portion 3 of the first embodiment is further provided with an earplug rubber sleeve 8, and the earplug rubber sleeve 8 is made of a soft material to prevent a hard surface of the earplug from directly contacting with the ear of a person to affect comfort.
The receiver circuit 2 comprises a low-power consumption 2.4G radio frequency chip 21, an antenna 22, a matching network 23, a radio frequency power amplifier 24, a power supply circuit 25 and an audio decoding circuit 26.
The antenna 22, the radio frequency power amplifier 24, the matching network 23 and the low-power consumption 2.4G radio frequency chip 21 are electrically connected in sequence, the radio frequency power amplifier 24 performs power amplification on a wireless signal received by the antenna 22, and sends the wireless signal to the matching network 23 after frequency selection to the low-power consumption 2.4G radio frequency chip 21.
The antenna 22 receives an audio signal sent by a transmitter of the guide explaining machine, then the audio signal is amplified by the radio frequency power amplifier 24, frequency-selected and matched by the matching network 23, and then the audio signal is sent to the low-power-consumption 2.4G radio frequency chip 21 for signal processing.
The audio decoding circuit 26 is electrically connected to the low-power-consumption 2.4G radio frequency chip 21 and the speaker 4, and decodes the audio signal sent by the low-power-consumption 2.4G radio frequency chip 21 and sends the decoded audio signal to the speaker 4 for playing.
The power circuit 25 is electrically connected to the low-power 2.4G rf chip 21 and the audio decoding circuit 26 to provide power for the low-power 2.4G rf chip 21 and the audio decoding circuit 26.
The receiver 100 of the present invention can increase the antenna receiving capability due to the radio frequency power amplifier 24 at the antenna 22 end, so that the long-distance signal can be received, thereby increasing the working distance of the receiver 100 of the present invention compared with the prior art, and being suitable for long-distance operation, so as to ensure that each visitor at different positions can clearly receive the signal.
Meanwhile, because the receiver 100 of the utility model adopts the low-power consumption 2.4G radio frequency chip 21, compared with the prior art, the power consumption of the whole machine during working can be reduced, thereby prolonging the working time of the receiver 100 of the utility model.
Preferably, the shell 1 is further provided with a key 7 electrically connected with the low-power consumption 2.4G radio frequency chip 21. The keys 7 comprise on-off and volume adjusting keys.
Preferably, an LED lamp 6 is further disposed on the housing 1 and electrically connected to the low-power-consumption 2.4G rf chip 21. The LED lamp 6 may be used to indicate a state of charge or an operating state.
As shown IN fig. 4, the low power consumption 2.4G rf chip 21 of the present invention has a model number IN 310.
The IN310 chip works IN a 2.4G frequency band, the working frequency is 2400-.
Meanwhile, the IN310 chip has powerful radio frequency function, can set thousands of channels, and has a self-adaptive channel adjusting function, namely when the channels are occupied, the undisturbed channels can be automatically searched for work, thereby solving the problem that a plurality of transmitters work simultaneously to generate same frequency or adjacent frequency interference.
As shown in fig. 5, the chip model of the rf power amplifier 24 is AT2401C or RFX 2401C.
The receiver 100 of the utility model adopts AT2401C or RFX2401C radio frequency power amplification chip, can provide 12dB of amplification gain, so as to improve the receiving distance of the receiver 100, the working distance of the receiver 100 of the utility model after adopting the radio frequency power amplification chip can reach more than 80 meters.
Preferably, the matching network 23 of the present invention uses an LC frequency-selective circuit for matching.
As shown in fig. 6, the audio decoding circuit 26 includes an audio decoding chip 261, and the audio decoding chip 261 has a model CL 1026. The utility model adopts the CL1026 audio decoding chip, improves the sound quality of the receiver 100 and meets the requirement of high fidelity quality.
As shown in fig. 1, the power circuit 25 of the present invention includes a charge/discharge management chip 251, a battery 252 and a voltage regulation chip 253. The charge/discharge management chip 251 manages the charge/discharge of the battery 252, and the voltage stabilization chip 253 converts the output voltage of the battery 252 into a stable operating voltage.
Specifically, as shown in fig. 7, the charge and discharge management chip 251 is electrically connected to the charging interface 5 and the battery 252, and the voltage stabilization chip 253 is electrically connected to the battery 252, the low-power consumption 2.4G radio frequency chip 21, and the audio decoding circuit 26. The charging interface 5 is connected with an external power supply, and the charging interface 5 can be a charging contact or an interface such as USB or TYPE-C. The stable working voltage output by the voltage stabilizing chip 253 supplies power to the low-power consumption 2.4G radio frequency chip 21 and the audio decoding circuit 26.
As shown in fig. 8, the regulator chip 253 includes a 3.3V regulator chip 2531 and a 1.8V regulator chip 2532. The model of the 3.3V voltage stabilizing chip 2531 is LN1134A332, and the model of the 1.8V voltage stabilizing chip 2532 is LN1134A182 MR. The LN1134A332 chip provides 3.3V direct-current voltage for the low-power consumption 2.4G radio frequency chip 21 and the audio decoding circuit 26, and the LN1134A182MR chip provides 1.8V direct-current voltage for the audio decoding circuit 26.
In the second embodiment, as shown in fig. 9 to fig. 11, the present invention further provides a receiver 100 of a guide explaining machine, which is different from the receiver 100 of the first embodiment in that an earpiece portion 3 of the receiver 100 of the second embodiment is a non-in-ear type, a slightly convex part is provided on a surface of a housing 1, a sound hole 9 is provided on a surface of the earpiece portion 3 for transmitting voice, the receiver 100 of the second embodiment is suitable for being hung on an ear for listening, and the receiver 100 of the first embodiment is suitable for being plugged into an ear for listening.
The utility model also provides a tour guide interpreter, which comprises the receiver 100 and a transmitter for transmitting wireless signals to the receiver 100. Since the guide explaining machine adopts the receiver 100, the guide explaining machine of the present invention has long working distance and long working time.
According to the receiver 100 of the guide explaining machine and the guide explaining machine provided by the embodiment of the utility model, the radio frequency power amplifier 24 is additionally arranged at the receiving end of the antenna 22 to provide 12dB amplification gain and improve the receiving distance, meanwhile, the low-power consumption 2.4G radio frequency chip 21 is adopted, the working current of the whole machine is greatly reduced, the power consumption of the receiver 100 is reduced, the working time of the receiver 100 is prolonged, meanwhile, the low-power consumption 2.4G radio frequency chip 21 can be provided with a plurality of channels, the self-adaptive channel adjusting function is realized, and the problem of same-frequency or adjacent-frequency interference caused by the simultaneous working of a plurality of transmitters is avoided.
The above description is only for clearly illustrating the present invention and is not intended to limit the scope of the present invention, and the present invention is not intended to be exhaustive or to limit the present invention, and all equivalent structural changes made by using the technical solutions of the present invention or other related technical fields under the spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A receiver of a guide explaining machine comprises a shell, a receiver circuit arranged in the shell, and a receiver part arranged on the shell, wherein a loudspeaker electrically connected with the receiver circuit is arranged in the receiver part;
the receiver circuit is characterized by comprising a low-power-consumption 2.4G radio frequency chip, an antenna, a matching network, a radio frequency power amplifier, a power supply circuit and an audio decoding circuit;
the antenna, the radio frequency power amplifier, the matching network and the low-power-consumption 2.4G radio frequency chip are sequentially and electrically connected, and the radio frequency power amplifier amplifies the power of a wireless signal received by the antenna, sends the wireless signal to the matching network for frequency selection and then sends the wireless signal to the low-power-consumption 2.4G radio frequency chip;
the audio decoding circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the loudspeaker, and is used for decoding the audio signal sent by the low-power-consumption 2.4G radio frequency chip and sending the decoded audio signal to the loudspeaker for playing;
the power supply circuit is electrically connected with the low-power-consumption 2.4G radio frequency chip and the audio decoding circuit.
2. The receiver of the tour guide interpreter of claim 1, wherein the model of the 2.4G rf chip with low power consumption is IN 310.
3. The receiver of the tourist explaining machine of claim 1, wherein the chip type of the radio frequency power amplifier is AT2401C or RFX 2401C.
4. The receiver of the guide explaining machine according to claim 1, wherein the audio decoding circuit comprises an audio decoding chip, and the audio decoding chip has model number CL 1026.
5. The receiver of the guide explaining machine according to claim 1, wherein the power circuit includes a charge and discharge management chip, a battery and a voltage stabilization chip;
the charging and discharging management chip is electrically connected with a charging interface and the battery, and the voltage stabilizing chip is electrically connected with the battery, the low-power-consumption 2.4G radio frequency chip and the audio decoding circuit.
6. The receiver of the tour guide explanation machine of claim 5, wherein the voltage regulation chip comprises a 3.3V voltage regulation chip and a 1.8V voltage regulation chip.
7. The receiver of the guide explaining machine of claim 6, wherein the model number of the 3.3V voltage stabilizing chip is LN1134A332, and the model number of the 1.8V voltage stabilizing chip is LN1134A182 MR.
8. The receiver of the tour guide explanation machine of claim 1, characterized in that the housing is further provided with a key electrically connected with the low power consumption 2.4G radio frequency chip.
9. The receiver of the guide explaining machine of claim 1, wherein the housing is further provided with an LED lamp electrically connected with the low-power-consumption 2.4G radio frequency chip.
10. A tour guide interpreter comprising a receiver according to any one of claims 1 to 9 and further comprising a transmitter for transmitting a wireless signal to said receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220406059.0U CN216904880U (en) | 2022-02-25 | 2022-02-25 | Receiver of guide explanation machine and guide explanation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220406059.0U CN216904880U (en) | 2022-02-25 | 2022-02-25 | Receiver of guide explanation machine and guide explanation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216904880U true CN216904880U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220406059.0U Active CN216904880U (en) | 2022-02-25 | 2022-02-25 | Receiver of guide explanation machine and guide explanation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216904880U (en) |
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2022
- 2022-02-25 CN CN202220406059.0U patent/CN216904880U/en active Active
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