CN210609727U - Wireless voice call repeater - Google Patents
Wireless voice call repeater Download PDFInfo
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- CN210609727U CN210609727U CN201922201031.4U CN201922201031U CN210609727U CN 210609727 U CN210609727 U CN 210609727U CN 201922201031 U CN201922201031 U CN 201922201031U CN 210609727 U CN210609727 U CN 210609727U
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Abstract
The utility model provides a wireless voice call repeater, include: the device comprises a shell and a substrate arranged in the shell; the substrate is provided with a main controller, a first wireless transmission module, a second wireless transmission module and a power supply module; the first wireless transmission module is wirelessly connected with the host, and the second wireless transmission module is wirelessly connected with the slave; the first wireless transmission module and the second wireless transmission module are connected with each other; the first wireless transmission module and the second wireless transmission module are also connected with the main controller. The utility model improves the communication distance to more than 2 times of the original communication distance by two 433 wireless transmission modules under the condition of no attenuation of signals, thereby greatly improving the remote transmission performance of the voice caller; 12 communication channels are preset, the communication channels can be switched according to the host channel, and the channels are not interfered with each other and have high reliability.
Description
Technical Field
The utility model relates to a wireless voice transmission of wireless communication especially relates to a wireless voice call repeater.
Background
The wireless voice pager is an intercom system based on wireless communication equipment, and becomes a common communication tool as the application of wireless electronic equipment becomes more and more extensive.
However, when the distance between the wireless voice callers is long, the problems of weak signal and intermittent sound are easy to occur, which brings inconvenience to communication.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a wireless voice call repeater, which is used to solve the problems of weak signal and intermittent sound easily occurring during remote interaction in the prior art.
In order to achieve the above and other related objects, the present invention provides a wireless voice call repeater, which is wirelessly connected to a host and a slave of the wireless voice call repeater, and comprises: the substrate comprises a shell and a substrate arranged in the shell;
the shell is provided with a power interface, a channel selection switch and a USB interface;
the substrate is provided with a main controller, a first wireless transmission module, a second wireless transmission module and a power supply module;
the power supply interface is used for connecting an external power supply to the power supply module and providing working voltage for the substrate;
the channel selection switch and the USB interface are connected with the main controller;
the first wireless transmission module is wirelessly connected with the host, and the second wireless transmission module is wirelessly connected with the slave; the first wireless transmission module and the second wireless transmission module are connected with each other;
the first wireless transmission module and the second wireless transmission module are also connected with the main controller.
In an embodiment of the present invention, the channel selection switch is a dial switch.
In an embodiment of the present invention, the first wireless transmission module and the second wireless transmission module are 433 wireless modules.
In an embodiment of the present invention, the first wireless transmission module and the second wireless transmission module are both provided with 433 antennas inside.
In an embodiment of the present invention, the power interface is further provided with a power switch for turning on or off the external power supply.
In an embodiment of the present invention, the external power source is a 5V/2A dc power source.
In an embodiment of the present invention, the power module includes a voltage-reducing chip U2 and a plurality of filter capacitors; the input end of the voltage reduction chip U2 is connected with an external power supply, and the external power supply is grounded through a filter capacitor C40; the voltage reduction chip U2 outputs a power supply V1, and the power supply V1 is grounded through a filter capacitor C41 and a filter capacitor C42.
As described above, the wireless voice call repeater of the present invention, through the two 433 wireless transmission modules, improves the communication distance to more than 2 times of the original communication distance without attenuation of signals, thereby greatly improving the remote transmission performance of the voice call repeater; 12 communication channels are preset, the communication channels can be switched according to the host channel, and the channels are not interfered with each other and have high reliability.
Drawings
Fig. 1 shows a schematic view of the substrate structure of the present invention.
Fig. 2 shows a schematic diagram of the power module wiring of the present invention.
Fig. 3 shows a comparison diagram of the channel selection of the dial switch of the present invention.
Fig. 4 is a schematic diagram of the 433 wireless module according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a wireless voice call repeater wirelessly connected to a host and a slave of a wireless voice call repeater, including: the substrate comprises a shell and a substrate arranged in the shell;
the shell is provided with a power interface, a channel selection switch and a USB interface;
the substrate is provided with a main controller, a first wireless transmission module, a second wireless transmission module and a power supply module;
referring to fig. 2, the power interface connects an external power source to the power module, the external power source is a 5V/2A dc power source, and the external power source is reduced by a voltage reduction chip U2 and outputs a power source V1 to provide a working voltage for the substrate;
in the embodiment, the U2 is in an AMS1117-3.3 model, and the output power supply V1 is 3.3V;
and the power interface is also provided with a power switch for turning on or off an external power supply.
The channel selection switch and the USB interface are connected with the main controller;
referring to fig. 3, the channel selection switch is a dial switch, and can manually set the current communication channel, and power on again after the setting is completed, and automatically switch to the set channel. In this embodiment, 12 communication channels can be preset, and the channels do not interfere with each other.
Through the USB interface can be right the utility model discloses a product carries out version upgrading.
In this embodiment, the main controller uses an STM32F103 of an ideogrammic as a controller.
The first wireless transmission module is wirelessly connected with the host, and the second wireless transmission module is wirelessly connected with the slave; the control ports of the first wireless transmission module and the second wireless transmission module are also connected with the main controller.
The voice signal of the host is received and processed by the first transmission module and then input into the second wireless transmission module, and the second wireless transmission module sends the voice signal to the slave; similarly, the voice signal of the slave computer is received and processed by the second transmission module and then input into the first wireless transmission module, and the first wireless transmission module sends the voice signal to the slave computer.
First wireless transmission module reaches second wireless transmission module is highly integrated 433 wireless module, 433 wireless module's interference killing feature is strong, supports pronunciation remote transmission, can guarantee that the straight line transmission distance is high-fidelity tone quality within 1500 meters, and is stable and can not disturbed by the signal.
The first wireless transmission module and the second wireless transmission module are both internally provided with 433 antennae and used for receiving and sending wireless voice information, so that the wireless voice information is used as a transfer station for voice transmission, and the transmission distance is greatly increased.
Referring to fig. 4, the antenna switch chip U1 in this embodiment is of the UPG2214TB type. The sixth pin of the antenna switch chip U1 is a sending control terminal, the fourth pin is a receiving control terminal, and both pins are connected with the main controller.
The highly integrated radio frequency chip IC1 is of type SX 1278;
the power amplifier chip Q2 is model BLT 53A.
The 433 receiving channel of the wireless module is:
an external signal is connected to the 433 wireless module through a 433 antenna, and is filtered by an inductor L1, a capacitor C2 and a capacitor C3 and then connected to an antenna switch chip U1, a main controller sends a control signal to a fourth pin of the antenna switch chip U1, a receiving channel is opened by the antenna switch chip U1, useless noise waves are filtered by the inductor L2 and the capacitor C12, a pure receiving signal is obtained, and the pure receiving signal is sent to a wireless radio frequency chip IC1 to be demodulated and then output.
The 433 sending channel of the wireless module is as follows:
the signal to be transmitted is sent to the wireless radio frequency chip IC1, modulated into an intermediate frequency signal, sent to the input end of the power amplifier chip Q2 through the transmitting mutual inductor, meanwhile, the main controller sends a control signal to the sixth pin of the antenna switch chip U1 and the control end of the triode Q1, the power amplifier chip Q2 sends the amplified signal to be transmitted to the input end of the antenna switch chip U1, and then the signal is converted into electromagnetic wave radiation through the antenna.
The transmitting transformer comprises an inductor L3, an inductor L4, an inductor L7 and a capacitor C1.
In actual use, the repeater defaults to default to the preset communication channel as 1 channel, and if other communication channels need to be changed, the dial switch can be dialed to the position of the channel corresponding to the dial switch according to the dial switch channel selection map in fig. 3; after the current used channel is configured, the power switch is turned on, and the equipment automatically enters the configured communication channel.
The sub-machine of the wireless pager presses a 'calling' key, a switch of the sub-machine is turned on to be powered on, the sub-machine enters a relay mode, the key is released, the 'calling' key is pressed again to carry out voice calling, after hands are released, the 'dropping' sound of the repeater can be heard, the repeater immediately forwards a voice signal from the sub-machine to a remote main machine after receiving the voice signal, the communication configuration with the repeater is completed, and the repeater can be normally used.
In summary, the utility model improves the communication distance to more than 2 times of the original communication distance by two 433 wireless transmission modules under the condition of no attenuation of signals, thereby greatly improving the remote transmission performance of the voice pager; 12 communication channels are preset, the communication channels can be switched according to the host channel, and the channels are not interfered with each other and have high reliability. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A wireless voice call repeater, the repeater is wirelessly connected with a host computer and a slave computer of the wireless voice call repeater, characterized by comprising: the substrate comprises a shell and a substrate arranged in the shell;
the shell is provided with a power interface, a channel selection switch and a USB interface;
the substrate is provided with a main controller, a first wireless transmission module, a second wireless transmission module and a power supply module;
the power supply interface is used for connecting an external power supply to the power supply module and providing working voltage for the substrate;
the channel selection switch and the USB interface are connected with the main controller;
the first wireless transmission module is wirelessly connected with the host, and the second wireless transmission module is wirelessly connected with the slave; the first wireless transmission module and the second wireless transmission module are connected with each other;
the first wireless transmission module and the second wireless transmission module are also connected with the main controller.
2. The wireless voice call repeater according to claim 1, wherein: the channel selection switch is a dial switch.
3. The wireless voice call repeater according to claim 1, wherein: the first wireless transmission module and the second wireless transmission module are both 433 wireless modules.
4. The wireless voice call repeater according to claim 3, wherein: the first wireless transmission module and the second wireless transmission module are both provided with 433 antennas inside.
5. The wireless voice call repeater according to claim 1, wherein: and the power interface is also provided with a power switch for turning on or off an external power supply.
6. The wireless voice call repeater according to claim 5, wherein: the external power supply is a direct current power supply of 5V/2A.
7. The wireless voice call repeater according to claim 6, wherein: the power supply module comprises a voltage reduction chip U2 and a plurality of filter capacitors; the input end of the voltage reduction chip U2 is connected with an external power supply, and the external power supply is grounded through a filter capacitor C40; the voltage reduction chip U2 outputs a power supply V1, and the power supply V1 is grounded through a filter capacitor C41 and a filter capacitor C42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922201031.4U CN210609727U (en) | 2019-12-10 | 2019-12-10 | Wireless voice call repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922201031.4U CN210609727U (en) | 2019-12-10 | 2019-12-10 | Wireless voice call repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210609727U true CN210609727U (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922201031.4U Active CN210609727U (en) | 2019-12-10 | 2019-12-10 | Wireless voice call repeater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210609727U (en) |
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2019
- 2019-12-10 CN CN201922201031.4U patent/CN210609727U/en active Active
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