CN215006919U - Remote control interface module - Google Patents
Remote control interface module Download PDFInfo
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- CN215006919U CN215006919U CN202120732982.9U CN202120732982U CN215006919U CN 215006919 U CN215006919 U CN 215006919U CN 202120732982 U CN202120732982 U CN 202120732982U CN 215006919 U CN215006919 U CN 215006919U
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Abstract
The utility model discloses a remote control interface module, which comprises an input interface, a line processing circuit, a switching circuit, an interface type identification circuit and an output interface which are connected in sequence; the circuit also comprises a modulation/demodulation circuit which is respectively connected with the input interface and the line processing circuit; the method comprises the steps of carrying out functions of automatically detecting the type of a remote control interface of a communication radio station, automatically adapting the type of the remote control interface of the radio station, converting signals and the like on the very high frequency ground-air communication radio station provided with various remote control interfaces such as a V-type E & M interface, a two-wire remote control interface and a four-wire remote control interface, and completing the automatic adaptation of the remote control interface of a signal to be transmitted between terminal equipment and the very high frequency ground-air communication radio station.
Description
Technical Field
The utility model relates to a very high frequency ground-to-air communication field, concretely relates to remote control interface module.
Background
In the very high frequency ground-air communication, the communication devices are interconnected and intercommunicated through a remote control interface, so that a worker can control a very high frequency ground-air communication radio station by using terminal devices such as a remote control box, a radio station network manager and the like.
At present, the types of the remote control interfaces which are commonly used in domestic very high frequency ground-air communication radio stations are as follows: class v E & M interfaces, two-wire remote interfaces, four-wire remote interfaces, etc. Usually, each type of very high frequency ground-air communication station is only provided with one or two remote control interfaces. However, whether it is a habit of operation or other factors, for various reasons, it is desirable for a worker to be able to operate different models of vhf air-ground communication stations through one terminal device. To meet the requirement, a remote control interface module is lacked to automatically adapt a remote control interface between the terminal equipment and the very high frequency ground-air communication station.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a remote control interface module, aim at realize the automatic adaptation of remote control interface between terminal equipment and very high frequency ground-to-air communication platform.
The utility model discloses a following technical scheme realizes:
a remote control interface module comprises an input interface, a line processing circuit, a switching circuit, an interface type identification circuit and an output interface which are connected in sequence; the circuit also comprises a modulation/demodulation circuit which is respectively connected with the input interface and the line processing circuit.
Further, the line processing circuit includes a two-line processing circuit, a four-line processing circuit, and an E & M processing circuit, the two-line processing circuit is connected to the modulation/demodulation circuit and the switching circuit, respectively, the four-line processing circuit is connected to the modulation/demodulation circuit and the switching circuit, respectively, and the E & M processing circuit is connected to the input interface and the switching circuit, respectively.
Further, the switching circuit includes a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, and a fifth switching circuit, the first switching circuit is connected to the two-wire processing circuit and the third switching circuit, the second switching circuit is connected to the four-wire processing circuit and the third switching circuit, the E & M processing circuit is connected to the fourth switching circuit, the third switching circuit and the fourth switching circuit are connected to the fifth switching circuit, and the fifth switching circuit is connected to the interface type identification circuit.
Furthermore, the modulation/demodulation circuit comprises an FSK modem with the model number of TCM3105, the FSK digital modulation has better anti-interference capability and anti-noise performance, equipment with the transmission rate of less than 1200 baud generally adopts an FSK modulation mode to transmit data, and the FSK digital modulation circuit is widely used in medium and low speed data communication systems to transmit data.
Further, the two-wire processing circuit and the four-wire processing circuit each include an integrated differential amplifier of model SSM2143 for comparison with a balanced line driver of model SSM 2142; the two-wire processing circuit is used for carrying out balance/unbalance conversion, amplitude adjustment and the like on signals to be transmitted by the two wires; the four-wire processing circuit is used for carrying out balance/unbalance conversion, amplitude adjustment and the like on a four-wire signal to be transmitted; the E & M processing circuit is used for converting the signals to be transmitted into class V E & M signals; the E & M processing circuit comprises an E & M interface chip with the chip model number SHEM 604.
Further, the switching circuit comprises an analog switch chip with the chip model of CD74HC4053, and the switching circuit is used for switching to a corresponding signal path according to the type of the radio station interface.
Further, the interface type identification circuit comprises a microcontroller chip with a chip model of LPC824M201JDH20, and the interface type identification circuit continuously samples pins of the output interface by adopting I/O (input/output), so as to automatically identify the type of the remote control interface of the radio station and generate a switching signal.
In the prior art, only one or two remote control interfaces are provided for a very high frequency ground-air communication radio station, and a signal to be transmitted of corresponding terminal equipment needs to be matched with the remote control interface of the very high frequency ground-air communication radio station, so that the very high frequency ground-air communication radio stations with different models can be expected to be controlled through one terminal equipment, the utility model provides a remote control interface module, after the remote control interface module is connected between the terminal equipment and the very high frequency ground-air communication radio station, the remote control interface module automatically completes the initialization work of radio station remote control interface type identification, remote control interface type matching and the like, then enters a normal working state, processes the signal to be transmitted from the received communication radio station through a matched processing circuit, then transmits the processed signal to be transmitted to the terminal equipment, correspondingly, at the terminal, a worker passes through the input interface of the terminal equipment, sending a signal to be transmitted to terminal equipment; then, the terminal equipment correspondingly processes the signal to be transmitted and sends the signal to be transmitted to a remote control interface module; and processing the signal to be transmitted through a corresponding remote control interface channel, and transmitting the signal to be transmitted to a communication radio station after signal conversion.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model relates to a remote control interface module to being equipped with various remote control interfaces like the very high frequency ground-to-air communication radio station of V type E & M interface, second line remote control interface, four-wire remote control interface, carries out functions such as automated inspection communication radio station remote control interface type, automatic adaptation radio station remote control interface type and signal transformation, accomplishes the remote control interface automatic adaptation of treating the signal between terminal equipment and very high frequency ground-to-air communication radio station.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of the internal circuit structure of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
fig. 3 is a connection diagram of the embedded terminal device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment is a remote control interface module,
the circuit comprises an input interface, a line processing circuit, a switching circuit, an interface type identification circuit and an output interface which are connected in sequence; the circuit also comprises a modulation/demodulation circuit which is respectively connected with the input interface and the line processing circuit.
In one embodiment, the line processing circuit includes a two-line processing circuit connected to the modulation/demodulation circuit and the switching circuit, respectively, a four-line processing circuit connected to the modulation/demodulation circuit and the switching circuit, respectively, and an E & M processing circuit connected to the input interface and the switching circuit, respectively.
Specifically, the switching circuit includes a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit, and a fifth switching circuit, the first switching circuit is connected to the two-wire processing circuit and the third switching circuit, the second switching circuit is connected to the four-wire processing circuit and the third switching circuit, the E & M processing circuit is connected to the fourth switching circuit, the third switching circuit and the fourth switching circuit are connected to the fifth switching circuit, and the fifth switching circuit is connected to the interface type identification circuit.
Specifically, the modulation/demodulation circuit comprises an FSK modem with the type of TCM3105, the FSK digital modulation has better anti-interference capability and anti-noise performance, and equipment with the transmission rate of less than 1200 baud generally adopts an FSK modulation mode to transmit data, and is widely used for transmitting data in a medium-low speed data communication system. The two-wire processing circuit and the four-wire processing circuit each include an integrated differential amplifier of model SSM2143 for use with a balanced line driver of model SSM 2142; the two-wire processing circuit is used for carrying out balance/unbalance conversion, amplitude adjustment and the like on signals to be transmitted by the two wires; the four-wire processing circuit is used for carrying out balance/unbalance conversion, amplitude adjustment and the like on a four-wire signal to be transmitted; the E & M processing circuit is used for converting the signals to be transmitted into class V E & M signals; the E & M processing circuit comprises an E & M interface chip with the chip model number SHEM 604. The switching circuit comprises an analog switch chip with the chip model of CD74HC4053, and the switching circuit is used for switching to a corresponding signal path according to the type of the radio station interface. The interface type identification circuit comprises a microcontroller chip with a chip model of LPC824M201JDH20, and the interface type identification circuit adopts I/O to continuously sample pins of an output interface, so as to automatically identify the type of a remote control interface of a radio station and generate a switching signal.
When the remote control interface module is used specifically, the remote control interface module of the utility model is arranged between a very high frequency ground-air communication radio station and a terminal device, in one embodiment, the connection relation among the remote control interface module, the communication radio station and the terminal device is shown in fig. 2, wherein the very high frequency ground-air communication radio station is used for receiving/transmitting a space radio frequency signal and converting the received space radio frequency signal into a signal to be transmitted, and the signal to be transmitted is transmitted with the remote control interface module through a radio station remote control interface; the remote control interface module is used for completing automatic adaptation of a remote control interface of a signal to be transmitted between the terminal equipment and the very high frequency ground-air communication station; the terminal equipment carries out corresponding processing on the signal to be transmitted and interacts with the seat of the controller; the controller seat is the specific environment where the controller works.
The working process of the automatic adaptation of the remote control interface module is as follows: before the interface type identification circuit of the remote control interface module generates a switching signal 3, two-line, four-line and E & M channels of the equipment are all in an open state (the first switching circuit, the second switching circuit and the fourth switching circuit are suspended) for the terminal equipment, and the output interface and the input interface are in a non-connected state; the interface type identification circuit detects the electrical characteristics of each pin of the output interface, identifies the interface type of the accessed communication radio station, and generates a switching signal 1 and a switching signal 2 according to the interface type; then, after the switching signals 1 and 2 are generated, delaying for 10 milliseconds, and generating the switching signal 3; before generating a switching signal 3, the first switching circuit, the second switching circuit and the fourth switching circuit are suspended, only after generating the switching signal 3, the switching states of the first switching circuit, the second switching circuit and the fourth switching circuit are changed according to the switching signal, initialization work such as radio station remote control interface type identification and remote control interface type adaptation is completed, after the remote control interface type is adapted, a signal to be transmitted is transmitted according to a selected interface type channel, and the signal enters a normal working state;
in the process of adapting the type of the remote control interface, signals to be transmitted are divided into two types including binary data signals and original audio signals, and the two types of signals are transmitted in a time-sharing manner; the switching signal 1 is in an invalid state in a normal state, the switching signal 1 is in an E & M path in a normal state, and the switching signal 1 is in a two-wire or four-wire path in an effective state; the normal state of the switching signal 2 is an invalid state, the normal state of the switching signal 2 is a four-wire path, and the valid state is a 2-wire path; when the radio station interface type is identified to be a two-wire remote control interface, the state of a switching signal 1 is effective, the state of a switching signal 2 is effective, a fifth switching circuit, a third switching circuit and a first switching circuit are connected, a second switching circuit and a fourth switching circuit are in an open circuit state, two-wire passages are communicated, at the moment, a signal to be transmitted is transmitted to a two-wire processing circuit through a connected two-wire channel to be subjected to balance/unbalance conversion, amplitude adjustment and other processing, the processed signal (audio) to be transmitted is sent to terminal equipment through an input interface, and if data are transmitted, a modulation and demodulation circuit demodulates the processed signal (data) to be transmitted and sends the demodulated signal (data) to the terminal equipment through the input interface;
similarly, when the interface type is identified as a four-wire remote control interface, the state of the switching signal 1 is valid, and the state of the switching signal 2 is invalid, the fifth switching circuit, the third switching circuit and the second switching circuit are connected, the first switching circuit and the fourth switching circuit are in an open circuit state, four-wire paths are connected, at this time, the signal to be transmitted is transmitted to the four-wire processing circuit through the connected four-wire channel to be subjected to processing such as balance/unbalance conversion and amplitude adjustment, the processed signal to be transmitted (audio) is transmitted to the terminal equipment through the input interface, and if data are transmitted, the modulation and demodulation circuit demodulates the processed signal to be transmitted (data) and transmits the demodulated signal to the terminal equipment through the input interface;
when the interface type is identified to be an E & M interface, the state of the switching signal 1 is invalid, the state of the switching signal 2 is normal, the fifth switching circuit and the fourth switching circuit are switched on, the first switching circuit and the second switching circuit are in an open circuit state, the E & M channel is communicated, the signal to be transmitted is transmitted to the E & M processing circuit through the switched-on E & M channel, and the E & M processing circuit converts the class V E & M signal into the signal to be transmitted and transmits the signal to the terminal equipment through the input interface.
Correspondingly, the staff sends the signal to be transmitted to the terminal equipment through the input interface of the terminal equipment; then, the terminal equipment correspondingly processes the signal to be transmitted and sends the signal to be transmitted to a remote control interface module; and the signal to be transmitted is processed by the corresponding remote control interface channel and then is sent to a communication radio station.
In another kind of embodiment, the relation of connection between remote control interface module, communication radio station and the terminal equipment is as shown in fig. 3, and during remote control interface module embedded terminal equipment with the form of independent integrated circuit board, specific signal transmission process with the utility model discloses remote control interface module's functional structure all is unanimous with above-mentioned, consequently, just not redundant here.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A remote control interface module is characterized by comprising an input interface, a line processing circuit, a switching circuit, an interface type identification circuit and an output interface which are connected in sequence; the circuit also comprises a modulation/demodulation circuit which is respectively connected with the input interface and the line processing circuit.
2. The remote control interface module according to claim 1, wherein said line processing circuit includes a two-line processing circuit, a four-line processing circuit, and an E & M processing circuit, said two-line processing circuit being connected to the modulation/demodulation circuit and the switching circuit, respectively, said four-line processing circuit being connected to the modulation/demodulation circuit and the switching circuit, respectively, and said E & M processing circuit being connected to the input interface and the switching circuit, respectively.
3. The remote control interface module as claimed in claim 2, wherein the switching circuit includes a first switching circuit, a second switching circuit, a third switching circuit, a fourth switching circuit and a fifth switching circuit, the first switching circuit is connected to the two-wire processing circuit and the third switching circuit, the second switching circuit is connected to the four-wire processing circuit and the third switching circuit, the E & M processing circuit is connected to the fourth switching circuit, the third switching circuit and the fourth switching circuit are connected to the fifth switching circuit, and the fifth switching circuit is connected to the interface type identification circuit.
4. The remote control interface module of claim 2 wherein said two-wire processing circuit and four-wire processing circuit each include an integrated differential amplifier of type SSM2143 and a balanced line driver of type SSM 2142; the E & M processing circuit comprises an E & M interface chip with the chip model number SHEM 604.
5. The remote control interface module of claim 1 wherein said modulation/demodulation circuitry comprises an FSK modem of the type TCM 3105.
6. A remote control interface module as claimed in claim 1, characterized in that the switching circuit comprises an analog switch chip of the chip type CD74HC 4053.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120732982.9U CN215006919U (en) | 2021-04-09 | 2021-04-09 | Remote control interface module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120732982.9U CN215006919U (en) | 2021-04-09 | 2021-04-09 | Remote control interface module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215006919U true CN215006919U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120732982.9U Active CN215006919U (en) | 2021-04-09 | 2021-04-09 | Remote control interface module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215006919U (en) |
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2021
- 2021-04-09 CN CN202120732982.9U patent/CN215006919U/en active Active
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