CN112911360A - Cascade control device, cascade equipment and method - Google Patents
Cascade control device, cascade equipment and method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
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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
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Abstract
The embodiment of the application provides a cascade control device, cascade equipment and a method, which relate to the technical field of cascade control, and the device comprises: the first input interface receives a first control signal sent by the first cascade equipment, and is further used for sending the first control signal to the demodulation module when the type of the first control signal is a modulation signal, and respectively sending the first control signal to the control module and the controlled chip when the type of the first control signal is a demodulation signal; the demodulation module is used for demodulating the first control signal and respectively sending the demodulated first control signal to the control module and the controlled chip; the control module is used for sending the first control signal to the first output interface; the first output interface is used for sending the first control signal to the second cascade equipment so that the second cascade equipment responds to the first control signal. The technical problem that in some technologies, a user controls each electronic device respectively so that control efficiency is low can be solved.
Description
Technical Field
The embodiment of the application relates to the technical field of cascade control, in particular to a cascade control device, cascade equipment and a method.
Background
With the development of electronic technology, various electronic devices are present in daily life of people, for example, in a home scene, electronic devices for watching such as a television, a television box, and a high-density Digital Video Disc (DVD) are usually installed, and in some homes, a plurality of electronic devices such as a television, a television box, and a DVD are also installed.
In some technologies, when a user wants to watch movie contents in a television box, the television and the television box need to be turned on respectively, when the user wants to watch movie contents in a DVD, the television and the DVD need to be turned on respectively, or when the user wants to turn on multiple televisions, each television needs to be turned on respectively. In the process, the user is required to control each electronic device respectively, so that the control efficiency of the user is greatly reduced.
Disclosure of Invention
The application provides a cascade control device, cascade equipment and a method, which are used for solving the technical problem that in some technologies, a user respectively controls each piece of electronic equipment so that the control efficiency is low.
In a first aspect, an embodiment of the present application provides a cascade control apparatus, including: the device comprises a first input interface, a demodulation module, a control module and a first output interface;
the first input interface is respectively connected with a second output interface of first cascade equipment, the demodulation module, the control module and a controlled chip of the current cascade equipment, and is used for receiving a first control signal sent by the first cascade equipment through the second output interface, sending the first control signal to the demodulation module when the type of the first control signal is a modulation signal, and sending the first control signal to the control module and the controlled chip when the type of the first control signal is a demodulation signal;
the demodulation module is also connected with the control module and the controlled chip respectively and is used for demodulating the first control signal and sending the demodulated first control signal to the control module and the controlled chip respectively;
the control module is also connected with the first output interface and used for sending the first control signal to the first output interface;
the first output interface is also connected with a second input interface of a second cascade device and used for sending the first control signal to the second cascade device through the second input interface so that the second cascade device responds to the first control signal;
the controlled chip is used for responding to the first control signal;
the current cascade device, the first cascade device and the second cascade device are associated devices.
In a second aspect, an embodiment of the present application further provides a cascade device, including: the cascade control apparatus as described in the first aspect.
In a third aspect, an embodiment of the present application further provides a cascade control method, including:
a first input interface receives a first control signal sent by a second output interface, and the second output interface is positioned in first cascade equipment;
when the type of the first control signal is a modulation signal, the first input interface sends the first control signal to a demodulation module;
the demodulation module demodulates the first control signal, and sends the demodulated first control signal to the control module and a controlled chip of the current cascade equipment respectively, and the controlled chip is used for responding to the first control signal; or the like, or, alternatively,
when the type of the first control signal is a demodulation signal, the first input interface sends the first control signal to the control module and the controlled chip respectively;
the control module sends the first control signal to a first output interface;
the first output interface sends the first control signal to second cascade equipment through a second input interface so that the second cascade equipment responds to the first control signal, the second input interface is located in the second cascade equipment, and the current cascade equipment, the first cascade equipment and the second cascade equipment are associated equipment.
According to the cascade control device, the cascade equipment and the method, the first control signal sent by the first cascade equipment is received through the first input interface, when the type of the first control signal is a modulation signal, the first control signal is sent to the demodulation module, the demodulation module demodulates the first control signal and then sends the first control signal to the control module and the controlled chip respectively, when the type of the first control signal is a demodulation signal, the first control signal is sent to the control module and the controlled chip respectively, the controlled chip responds to the first control signal, and the control module sends the first control signal to the second cascade equipment through the first output interface so that the second cascade equipment responds. By arranging the demodulation module, the demodulation of the modulation signal can be realized, the type of the first control signal is enriched, and the application scene of the cascade control device is expanded.
Drawings
Fig. 1 is a schematic structural diagram of a cascade control apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another cascade control apparatus provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of another cascade control apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another cascade control apparatus provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of another cascade control apparatus provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a first input interface according to an embodiment of the present application;
fig. 7 is a schematic diagram of a demodulation module according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a selection module according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a logic module according to an embodiment of the present application;
fig. 10 is a schematic diagram of an isolation module according to an embodiment of the present application;
FIG. 11 is a schematic diagram of a control module according to an embodiment of the present disclosure;
fig. 12 is a schematic diagram of a first output interface according to an embodiment of the present application;
fig. 13 is a flowchart of a cascade control method according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are for purposes of illustration and not limitation. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
It is to be noted that, in this document, relational terms such as first and second are used solely to distinguish one entity or action or object from another entity or action or object without necessarily requiring or implying any actual such relationship or order between such entities or actions or objects. For example, a "first" and a "second" of a first cascaded device and a second cascaded device are used to distinguish two different cascaded devices.
In an embodiment, the cascade control apparatus provided in this embodiment of the present application is installed in a cascade device, where the cascade device is a device that uses cascade control. The cascade control means that a plurality of cascade devices are connected in a wired or wireless manner, and one cascade device can receive a signal sent by another cascade device and respond. In an embodiment, the plurality of cascade devices performing cascade control use unidirectional transmission, that is, each cascade device receives a signal sent by a previous cascade device and sends the signal to a next cascade device, where the number of the next cascade devices may be one or more, and the embodiment does not limit this. At this time, the cascade device located at the forefront cannot acquire the signal transmitted by the rear cascade device, and the cascade device located at the rearmost cannot transmit the signal to the front cascade device. Furthermore, each cascade device realizes connection and cascade control through a cascade control device installed on the cascade device. In the embodiment, each cascade device is provided with one cascade control device. The installation position of the cascade control device in the cascade equipment can be set according to the actual situation, for example, the cascade control device is installed on the mainboard of the cascade equipment. Optionally, in practical applications, by increasing the number of cascade control devices in the cascade device, the cascade control in two or more directions can be implemented. For example, each cascade device is provided with two cascade control devices, one of the cascade control devices is used for receiving a signal sent by a previous cascade device and sending the signal to a next cascade device, and the other cascade control device is used for receiving a signal sent by a next cascade device and sending the signal to the previous cascade device.
In the embodiment, the cascade control apparatus installed therein is described by taking the cascade device located in the middle (the non-first cascade device and the non-last cascade device) as an example. Specifically, fig. 1 is a schematic structural diagram of a cascade control device according to an embodiment of the present application. Referring to fig. 1, the present cascade device 1 includes a cascade control apparatus 10, and the cascade control apparatus 10 includes a first input interface 11, a demodulation module 12, a control module 13, a first output interface 14, and optionally a controlled chip 15. The first input interface 11 is connected to a second output interface (not shown) of the first cascade device 2, the demodulation module 12, the control module 13, and the controlled chip 15, respectively, and is configured to receive a first control signal sent by the first cascade device 2 through the second output interface. When the type of the first control signal is a modulation signal, the first input interface 11 sends the first control signal to the demodulation module 12; when the type of the first control signal is a demodulation signal, the first input interface 11 sends the first control signal to the control module 13 and/or the controlled chip 15, respectively. The demodulation module 12 is connected to the control module 13 and the controlled chip 15, and configured to demodulate the first control signal and send the demodulated first control signal to the control module 13 and/or the controlled chip 15, respectively. The control module 13 is further connected to the first output interface 14, and is configured to send a first control signal to the first output interface 14. The first output interface 14 is further connected to a second input interface (not shown) of the second cascade device 3 for transmitting a first control signal to the second cascade device 3 via the second input interface, so that the second cascade device 3 responds to the first control signal. The controlled chip 15 is operable to respond to the first control signal when the cascade device 1 is currently acting in response to the first control signal. The current cascade device 1, the first cascade device 2 and the second cascade device 3 are associated devices.
For example, the cascade device 1 is a cascade device in which the cascade control apparatus 10 is installed. The first cascade device 2 is a cascade device preceding the current cascade device 1, and can transmit a signal to the current cascade device 1. The second cascade device 3 is a cascade device subsequent to the current cascade device 1, and can receive a signal sent by the current cascade device 1. The current cascade device 1, the first cascade device 2, and the second cascade device 3 are associated devices, wherein the associated devices may be devices of the same or similar types, for example, the current cascade device 1 is a display device with a display screen, and the first cascade device 2 and the second cascade device 3 are televisions, which are all display devices. The associated device may also be a device that works in cooperation, for example, the first cascade device 2 is a television box, the current cascade device 1 is a television controlled by the television box, and the second cascade device 3 is another television. For another example, the first cascade device 2 is an optical modem, the current cascade device 1 is a main router, and the second cascade device 3 is a sub-router. In the embodiment, a description is given by taking as an example that cascade control devices having the same structure are installed in the current cascade device 1, the first cascade device 2, and the second cascade device 3, and an exemplary description is given by taking as an example a cascade control process by taking as an example a cascade control device installed in the current cascade device. It is understood that the cascade control process is exemplarily described by three cascade devices in the embodiment, and in practical applications, the number of the cascade devices may be only two or more than two.
The first input interface 11 is used for receiving an electrical signal sent by the first cascade device 2. The interface type embodiment of the first input interface 11 is not limited. In one embodiment, the interface type of the first input interface 11 is an earphone terminal. The terminal is a wiring terminal, the earphone terminal is a jack used for being connected with equipment in the earphone, and the audio electric signal sent by the equipment can be received through the earphone terminal. In this embodiment, the earphone terminal used by the first input interface 11 is referred to as a first earphone terminal, that is, the first input interface 11 includes the first earphone terminal, generally, the first earphone terminal includes a plurality of contacts (e.g., a contact for receiving a left channel audio signal, a contact for receiving a right channel audio signal, and a ground contact) for receiving an electrical signal, in this embodiment, when the first earphone terminal is used to receive an electrical signal, only one contact may be reserved as a connection contact (i.e., a contact for realizing connection) to receive an electrical signal, and the remaining contacts are all grounded. In an embodiment, the first input interface 11 is configured to receive a control signal, which is sent to the current cascade device 1 by the second output interface of the first cascade device 2 and is used to control the current cascade device 1, and record the control signal sent by the first cascade device 2 as a first control signal. The second output interface of the first cascade device 2 is connected to the first input interface 11 by a wire, for example, the second output interface is connected to the first input interface by a wire, that is, a socket corresponding to the second output interface and a socket corresponding to the first input interface are respectively arranged in the first cascade device and the current cascade device, and then the second output interface is connected to the first input interface by a wire provided with a plug. Further, the interface type embodiment of the second output interface is not limited. For example, the second output interface employs an earphone terminal of the same model as the first input interface.
Further, the content of the control instruction included in the first control signal is not limited, for example, the first control signal is to open the cascade device, close the cascade device, or start a certain task of the cascade device (for example, play a certain video or play a certain music), and the like. It is understood that the embodiment of the generation manner of the first control signal in the first cascade device 2 is not limited. In one embodiment, the type of the first control signal includes a modulation signal and a demodulation signal. The modulation signal is understood to be a signal obtained by loading information (specific content of the first control signal in the embodiment) to be used into the waveform of the transmission signal. The demodulation signal is a signal obtained by separating information (specific content of the first control signal in the embodiment) to be used from a waveform of the transmission signal, and it can be understood that the demodulation signal can be obtained by demodulating the modulation signal. In an embodiment, the modulation signal and the demodulation signal are both electrical signals containing high and low levels, and the high and low levels in the electrical signals are changed according to a certain rule. Further, the control signal responded in the cascade control apparatus 10 should be a demodulated signal, and therefore, when the type of the first control signal is the demodulated signal, the first input interface 11 can directly transmit the first control signal to the control module 13 and/or the controlled chip 15 to be responded by the control module 13 and the controlled chip 15. When the type of the first control signal is a modulation signal, the first input interface 11 first transmits the first control signal to the demodulation module 12, so as to demodulate the first control signal first, and then the control module 13 and the controlled chip 15 respond.
In one embodiment, the demodulation module 12 is configured to demodulate the modulated signal to obtain a demodulated signal. The demodulation rule of the demodulation module 12 corresponds to the modulation rule of the corresponding modulated signal, and the specific rule content embodiment is not limited. The specific structure of the demodulation module 12 can be designed according to practical situations, for example, the demodulation module 12 is implemented by using a decoding chip with demodulation function. Specifically, the demodulation module 12 demodulates the first control signal after receiving the first control signal, so as to obtain a demodulated first control signal (i.e., a demodulated signal). Then, the demodulated first control signal is sent to the control module 13 and/or the controlled chip 15, respectively.
In one embodiment, the control module 13 has functions of data processing, data storage, and the like, and a specific structure thereof may be designed in combination with an actual situation, for example, the control module 13 employs a Micro Control Unit (MCU). Further, the control module 13 mainly functions to send the received first control signal to the first output interface 14. When the control module 13 sends the first control signal, the first control signal may be processed (for example, the first control signal is modulated, the energy of the first control signal is enhanced, and the like), and an embodiment of the processing means adopted by the processing module is not limited. It can be understood that the type of the first control signal received by the control module 13 is a demodulation signal, which may be a demodulation signal directly transmitted by the first input interface 11 or a demodulation signal transmitted by the demodulation module 12.
In one embodiment, the first output interface 14 is used to transmit electrical signals. The interface type of the first output interface 14 is not limited, and in one embodiment, the first output interface 14 and the first input interface 11 are the same type of earphone terminal. In the embodiment, the earphone terminal used by the first output interface 14 is referred to as a second earphone terminal, that is, the first output interface 14 includes the second earphone terminal. Illustratively, after receiving the first control signal sent by the control module 13, the first output interface 14 sends the first control signal to the second cascade device 3 through the connected second input interface, so that the second cascade device 3 responds to the first control signal. The first output interface 14 and the second input interface of the second cascade device 3 are connected by a wire, and the specific connection mode is the same as that of the first input interface 11 and the second output interface. Further, the interface type embodiment of the second input interface is not limited. For example, the second output interface employs an earphone terminal of the same model as the first input interface.
In one embodiment, the controlled chip 15 may be considered as a chip disposed on the current cascade device, for example, when the current cascade device is a television, the controlled chip 15 includes a television motherboard chip. The television mainboard chip can control actions of starting up the television, shutting down the television, switching display contents of the television and the like. The controlled chip 15 receives the first control signal and then responds to the first control signal, that is, executes a control instruction corresponding to the first control signal, so as to implement that the current cascade device responds to the first control signal. For example, the current cascade device is a television, and the control instruction corresponding to the first control signal is to turn on the current cascade device, so that the controlled chip 15 controls the television to turn on after receiving the first control signal.
The operation of the cascade control apparatus 10 will now be described by way of example, with the first control signal currently being used to turn on the cascade devices. Specifically, when the first control signal is a modulation signal, the first input interface 11 receives the first control signal sent by the first cascade device 2, and then sends the first control signal to the demodulation module 12, the demodulation module 12 demodulates the first control signal to obtain a demodulated first control signal, and sends the demodulated first control signal to the control module 13 and the controlled chip 15, respectively, the control module 13 sends the received first control signal to the second cascade device 3 through the first output interface 14, so that the second cascade device 3 responds to the first control signal, and the controlled chip 15 receives the first control signal and then starts the current cascade device 1. When the first control signal is a demodulation signal, the first input interface 11 sends the first control signal to the control module 13 and the controlled chip 15, respectively, and the control module 13 sends the received first control signal to the second cascade device 3 through the first output interface 14, so that the second cascade device 3 responds to the first control signal, and the controlled chip 15 starts the current cascade device 1 after receiving the first control signal.
It can be understood that, when the first cascade device is the first cascade device in the cascade control, the input interface in its own cascade control apparatus is not connected to other cascade devices. When the second cascade device is the last cascade device in the cascade control, the output interface in the cascade control device of the second cascade device is not connected with other cascade devices. In addition, the cascade control devices installed in other cascade equipment in the cascade control can also adjust the number, functions and connection relations of the modules and interfaces included in the cascade control devices by combining the actual conditions of the cascade control devices, and the requirements of the cascade control can be met.
The cascade control device receives a first control signal sent by first cascade equipment through a first input interface, and sends the first control signal to a demodulation module when the type of the first control signal is a modulation signal, and the demodulation module demodulates the first control signal and then respectively sends the first control signal to a control module and/or a controlled chip; when the type of the first control signal is a demodulation signal, the first control signal is respectively sent to the control module and/or the controlled chip, the controlled chip responds to the first control signal, and the control module sends the first control signal to the second cascade equipment through the first output interface so as to enable the second cascade equipment to respond. By arranging the demodulation module, the demodulation of the modulation signal can be realized, the type of the first control signal is enriched, and the application scene of the cascade control device is expanded.
On the basis of the above embodiments, fig. 2 is a schematic structural diagram of another cascade control device provided in the embodiments of the present application. The cascade control apparatus shown in fig. 2 is embodied based on the cascade control apparatus shown in fig. 1.
Referring to fig. 2, the cascade control apparatus 11 further includes a selection module 16; the first input interface 11 and the demodulation module 12 are both connected with the control module 13 and the controlled chip 15 through the selection module 16; and the selection module 16 is configured to control the type of the first control signal, and is further configured to receive the first control signal sent by the first input interface 11 or the demodulation module 12, and send the first control signal to the control module 13 and/or the controlled chip 15, respectively.
Specifically, the first input interface 11 is connected to the control module 13 and the controlled chip 15 through the selection module 16. The demodulation module 12 is connected with the control module 13 and the controlled chip 15 through the selection module 16. In this case, one transmission line is used between the selection module 16 and the control module 13, and one transmission line is used between the selection module 16 and the controlled chip 15. Namely, the first input interface 11 and the demodulation module 12 are both connected to the selection module 16, and are connected to the control module 13 and the controlled chip 15 through the selection module 16.
Further, the selection module 16 is a module for implementing a selection (or switch) function. In an embodiment, the selection module 16 may control the type of the first control signal. That is, the selection module 16 may select whether the first input interface 11 receives a modulated signal or a demodulated signal. The specific circuit structure of the selection module 16 may be designed according to actual situations, for example, the selection module 16 employs a switch chip to simulate a switch function, and at this time, the switch chip includes two states of "0" and "1". When the switch chip is "1", the type of the selected first control signal is a demodulation signal, and at this time, the switch chip can only receive the demodulation signal sent by the first input interface 11, so that the first input interface 11 can only receive the demodulation signal. When the switch chip is "0", the type of the selected first control signal is a modulation signal, and at this time, the switch chip can only receive the demodulation signal sent by the demodulation module 12, so that the first input interface 11 can only receive the modulation signal. Further, the embodiment of the technical means adopted when the selection module 16 selects the type of the first control signal is not limited. For example, the selection module 16 is further connected to the controlled chip 15, and the user can call a setting interface of the first control signal type through the television and select the type of the first control signal in the setting interface. After that, the controlled chip 15 determines the selection of the user and sends the selection to the selection module 16, so that the selection module 16 sets the type of the first control signal according to the selection of the user.
Illustratively, when the selection module 16 sets the first control signal as the demodulated signal, the first input interface 11 receives the first control signal and then sends the first control signal to the selection module 16, and then the selection module 16 sends the received first control signal to the control module 13 and/or the controlled chip 15, respectively. When the selection module 16 sets the first control signal as a modulation signal, the first input interface 11 sends the first control signal to the modulation module 12, and the modulation module 12 demodulates the received first control signal to obtain a demodulated first control signal and sends the demodulated first control signal to the selection module 16. The selection module 16 sends the received first control signal to the control module 13 and the controlled chip 15, respectively. It is understood that the demodulated signal received by the selection module 16 may be the demodulated signal directly received by the first input interface 11 from the first cascade device 2; the first input interface 11 may also receive a modulated signal sent from the first cascade device 2, and then demodulate the modulated signal by the demodulation module 12.
In the above, by setting the selection module, the type of the first control signal can be set, and further the cascade control process of the cascade control device can be controlled.
On the basis of the foregoing embodiment, fig. 3 is a schematic structural diagram of another cascade control apparatus provided in the embodiment of the present application. The cascade control apparatus shown in fig. 3 is embodied based on the cascade control apparatus shown in fig. 2.
Referring to fig. 3, the cascade control apparatus 10 further includes a third input interface 17; the third input interface 17 is connected to a wireless receiving module (not shown) of the current cascade device 1, the control module 13, and the controlled chip 15, and is configured to receive a second control signal sent by the wireless receiving module, and further send the second control signal to the control module 13 and/or the controlled chip 15; the control module 13 is further configured to send a second control signal to the first output interface 14; the first output interface 14 is further configured to send a second control signal to the second cascade device 3 through the second input interface; the controlled chip 15 is also used for responding to a second control signal.
Specifically, the third input interface 17 is used for receiving an electrical signal, and an interface type embodiment of the third input interface 17 is not limited. For example, the interface type of the third input interface 17 is a socket, which can be connected with a plug when the plug is inserted. The socket includes at least one contact therein for receiving an electrical signal therethrough.
Illustratively, the third input interface 17 is connected to the wireless receiving module of the current cascade device 1 to receive the second control signal sent by the wireless receiving module. In one embodiment, the current cascade device 1 is further provided with a wireless receiving module, and the wireless receiving module performs wireless communication with an external remote control device (such as a remote controller). The external remote control device is used for controlling the current cascade device, and can perform wireless communication with the wireless receiving module after being successfully matched with the current cascade device, wherein the embodiment of the matching mode is not limited. Data communication can be carried out between the external remote control equipment and the wireless receiving module in the modes of Bluetooth, infrared or WiFi network and the like. In the embodiment, an infrared communication mode is used between the external remote control device and the wireless receiving module for description, and correspondingly, the wireless receiving module is an infrared remote control receiving module. At this time, the signal sent by the external remote control device is an infrared control signal, and in the embodiment, the infrared control signal is recorded as a second control signal. The content of the control command included in the second control signal is not limited in the embodiments. In one embodiment, the wireless receiving module is connected to the third input interface 17 by a wire to transmit the second control signal by the wire. For example, when the interface type of the third input interface 17 is a socket, a plug is disposed at one end of the wire connected to the third input interface 17, so as to connect the third input interface 17 through the plug. The other end of the wire is connected with the wireless receiving module, and the connection mode of the wire when being connected with the wireless receiving module is not limited, such as connection through a socket and a plug. Specifically, after the external remote control device sends the second control signal, the infrared remote control receiving module receives the second control signal and sends the second control signal to the third input interface 17.
Further, the third input interface 17 is further connected to the control module 13 and the controlled chip 15, and the specific connection mode embodiment is not limited. After receiving the second control signal, the third input interface 17 sends the second control signal to the control module 13 and/or the controlled chip 15, respectively. The control module 13 and/or the controlled chip 15 then respond to the second control signal. The response mode of the control module 13 and/or the controlled chip 15 to the second control signal is the same as the response mode of the first control signal, and details of the embodiment are not repeated here.
It is understood that the first input interface 11 can be considered as an external input interface, which is connected to other cascade devices, for example, in the embodiment, the first cascade device 2 and the second cascade device 3 are other cascade devices, and the first input interface 11 is connected to the first cascade device 2. The third input interface 17 may be considered as a built-in input interface which is connected to a wireless receiving module built in the current cascade device.
As described above, by setting the third input interface, the current cascade device can be controlled not only by cascade control but also by an external remote control device, that is, the current cascade device can be used as the most preceding cascade device in one-time cascade control.
On the basis of the foregoing embodiment, fig. 4 is a schematic structural diagram of another cascade control apparatus provided in the embodiment of the present application. The cascade control apparatus shown in fig. 4 is embodied based on the cascade control apparatus shown in fig. 3.
Referring to fig. 4, the cascade control apparatus 11 further includes: a logic module 18; the selection module 16 and the third input interface 17 are connected with the control module 13 and the controlled chip 15 through the logic module 18; the logic module 18 is configured to receive the first control signal sent by the selection module 16 or the second control signal sent by the third input interface 17, and further configured to send the first control signal or the second control signal to the control module 13 and/or the controlled chip 15, respectively.
In one embodiment, the cascade control apparatus 10 receives only one control signal at the same time, that is, the cascade control apparatus 10 receives only the first control signal or the second control signal at the same time, so that the control module 13 forwards only one control signal to the second cascade device 3 and/or the controlled chip 15 responds to only one control signal. The logic module 18 is arranged to avoid, when one control signal is received, the influence of the transmission line of another control signal on the currently received control signal. Specifically, the selection module 16 is connected to the logic module 18, the third input interface 17 is connected to the logic module 18, and the logic module 18 is connected to the control module 13 and the controlled chip 15, respectively. Namely, the selection module 16 and the third input interface 17 are connected with the control module 13 and the controlled chip 15 through the logic module 18. In this case, the logic module 18 includes two input interfaces, namely, a first input interface 11 and a third input interface 17 (respectively receiving the first control signal and the second control signal) and an output interface (for outputting the first control signal or the second control signal to the control module 13 and the controlled chip 15). In one embodiment, the control signal is a signal with a high-low level change. The level change condition of the control signal output by the output interface of the logic module 18 is determined by the level change conditions of the two input interfaces, at this time, the processing principle of the logic module 18 is to ensure that when one input interface receives the control signal, the other input interface does not affect the control signal, so that the output interface accurately outputs the received control signal, that is, when one input interface receives the control signal, the level change condition of the control signal output by the output interface is the same as the level change condition of the control signal received by the input interface. The circuit structure adopted by the logic module 18 may be combined with actual design, and in one embodiment, the logic module 18 is embodied as an and logic module, that is, the logic module 18 is a logic gate circuit controlled by an and gate. The AND gate control is that when all the inputs are at high level (logic 1) at the same time, the output is at high level, otherwise, the output is at low level (logic 0). In this embodiment, both input interfaces of the logic module 18 default to high level when no control signal is input, and correspondingly, the output interface of the logic module 18 is high level when no control signal is output. When one input interface inputs a control signal, the level of the input interface changes from high to low, while the other input interface is still at high level, at this time, according to the rule of AND gate control, the other input interface is at high level (no control signal is input). Then, when the input interface receiving the control signal is at a high level, the output interface outputs an electrical signal at a high level (i.e., both the input interfaces are at a high level, and the output interface is at a high level), and when the input interface receiving the control signal is at a low level, the output interface outputs an electrical signal at a low level (i.e., one input interface is at a low level, the other input interface is at a high level, and the output interface is at a low level), thereby ensuring that the level change condition of the electrical signal output by the output interface is consistent with the level change condition of the control signal, and further ensuring that the logic module 18 accurately outputs the corresponding control signal.
Above-mentioned, can effectively avoid the mutual influence between first control signal and the second control signal through logic module, guarantee cascade control device in the accurate transmission of control signal.
On the basis of the foregoing embodiment, fig. 5 is a schematic structural diagram of another cascade control device provided in the embodiment of the present application. The cascade control apparatus shown in fig. 5 is embodied based on the cascade control apparatus shown in fig. 4.
Referring to fig. 5, the cascade control apparatus 10 further includes an isolation module 19. The logic module 18 is connected with the control module 13 through an isolation module 19; the isolation module 19 is configured to transmit the first control signal or the second control signal to the control module 13 in a single direction.
Specifically, the control module 13 is in a power-on state, so that when the interface of the control module 13 for receiving the first control signal or the second control signal does not receive the first control signal or the second control signal, a corresponding level also exists, when the output interface of the logic module 18 outputs the first control signal or the second control signal, the level of the corresponding interface in the control module may affect the first control signal or the second control signal output by the output interface, so that, in order to avoid the effect on the logic module 18, in an embodiment, an isolation module 19 is provided in the control module 13 and the logic module 18 to ensure that the first control signal or the second control signal output by the logic module 18 is accurately input into the control module 13, that is, the unidirectional transmission of the first control signal and the second control signal is ensured, and the influence of the control module 13 on the first control signal and the second control signal is avoided. The specific circuit structure of the isolation module 19 may be set according to actual conditions, and the embodiment is not limited to this.
Above-mentioned, can effectively avoid control module to first control signal or second control signal's influence through the isolation module, guarantee first control signal and second control signal's one-way transmission.
Specifically, fig. 6 is a schematic diagram of a first input interface provided in the embodiment of the present application, fig. 7 is a schematic diagram of a demodulation module provided in the embodiment of the present application, fig. 8 is a schematic diagram of a selection module provided in the embodiment of the present application, fig. 9 is a schematic diagram of a logic module provided in the embodiment of the present application, fig. 10 is a schematic diagram of an isolation module provided in the embodiment of the present application, fig. 11 is a schematic diagram of a control module provided in the embodiment of the present application, and fig. 12 is a schematic diagram of a first output interface provided in the embodiment of the present application.
Referring to fig. 6 to 12, the first input interface 11 includes a first headphone terminal AVO1, the demodulation module includes a decoding chip UK10, the selection module includes a switch chip US2, the logic module includes an and circuit UK3, and the control module includes an MCU (denoted as MCU chip UK1 in fig. 11).
Specifically, the first headphone terminal AVO1 includes 4 contacts, wherein the second contact (i.e., the identifier AV-IN/Y/PC _ L) is connected to the interface 7(IN interface) of the decoding chip UK10 and the interface 1(NO interface) of the switch chip US2, respectively, and the remaining contacts are all grounded. After the first headphone terminal AVO1 is connected to the first cascade device, the first headphone terminal AVO1 can receive the electrical signal sent by the first cascade device and transmit the electrical signal to the IN interface of the decoding chip UK10 or the NO interface of the switch chip US1 through the second contact. Further, the first input interface 11 further includes circuit elements (such as the resistor R1, the resistor R2, and the capacitor C1 in fig. 6) for ensuring accurate transmission of the first control signal, and the connection relationship and the element parameters of each circuit element may be set according to practical situations, and the embodiment is not limited. Furthermore, the specific model of the decoding chip UK10 can be set according to practical situations, and the interface 3(OUT interface) in the decoding chip UK10 is connected with the interface 3(NC interface) of the switch chip US 2. Optionally, an isolation unit (for example, a circuit structure composed of an NMOS transistor Q1, a resistor R3, a resistor R4, and a resistor R5 IN fig. 7) is further included between the IN interface of the decoding chip UK10 and the second contact of the first earphone terminal AVO1, where the isolation unit is configured to ensure unidirectional transmission of the first control signal, and IN addition, the demodulation module further includes other circuit components (for example, a resistor R6, a capacitor C2, a capacitor C3, and an inductor L1 IN fig. 7) configured to ensure accurate transmission of the first control signal, and a connection relationship and component parameters of the circuit components may be set according to an actual situation, which is not limited IN the embodiments. Further, the specific model of the switch chip US2 may be set according to actual conditions, the interface 4(VCOM interface) of the switch chip US2 is connected to the interface 2(1B interface) of the and circuit UK3, and the interface 6(IN interface) of the switch chip US2 is configured to receive a user instruction (denoted as BL _ ON _ IC) to select the first earphone terminal AVO1 to receive the modulation signal or the demodulation signal. When BL _ ON _ IC is 0, it indicates the modulation signal received by the first headphone terminal AVO1, and at this time, the NC interface receives the first control signal, and when BL _ ON _ IC is 1, it indicates the demodulation signal received by the first headphone terminal AVO1, and at this time, the NO interface receives the first control signal. The selection module further includes other circuit elements (such as the resistor R7, the resistor R8, the resistor R9, the resistor R10, the resistor R11, the resistor R12, the capacitor C4, the capacitor C5, the capacitor C6, and the transient diode DE1 in fig. 8) for ensuring accurate transmission of the first control signal, and the connection relationship and the element parameters of the circuit elements may be set according to actual conditions, and the embodiment is not limited.
For example, when the first headphone terminal AVO1 receives the first control signal (OUT _ IRIN), if the first control signal (OUT _ IRIN) is a modulation signal, the first headphone terminal AVO1 unidirectionally transmits the first control signal (OUT _ IRIN) to the IN interface of the decoding chip UK10 through the isolation unit, the decoding chip UK10 decodes the first control signal (OUT _ IRIN), and then inputs the decoded first control signal (OUT _ M _ IRIN) to the NC interface of the switch chip US2 through the OUT interface, and the switch chip US2 receives the decoded first control signal (OUT _ M _ IRIN), and then outputs the first control signal (OUT _ SW _ IRIN) to the 1B interface of the and gate circuit UK3 through the VCOM interface. Alternatively, when the first headphone terminal AVO1 receives the first control signal (OUT _ IRIN), if the first control signal (OUT _ IRIN) is a demodulated signal, the first headphone terminal AVO1 inputs the first control signal (OUT _ IRIN) to the NO interface of the switch chip US2, and the switch chip US2 receives the first control signal (OUT _ IRIN), and outputs the first control signal (OUT _ SW _ IRIN) to the 1B interface of the and gate UK3 via the VCOM interface.
Further, the specific type of the and circuit UK3 may be set according to an actual situation, the interface 1(1A) of the and circuit UK3 is connected to a third input interface (not shown) for receiving the second control signal, and the interface 6(1y (out) interface) of the and circuit UK3 is connected to the interface 2(PA6 interface) of the MCU through the isolation module. In addition, the logic module further includes other circuit elements (such as the resistor R13, the resistor R14, the resistor R15, the resistor R16, the capacitor C7, the capacitor C8, and the capacitor C9 in fig. 9) for ensuring accurate transmission of the first control signal or the second control signal, and the connection relationship and the element parameters of the circuit elements may be set according to actual situations, and the embodiment is not limited. Further, the isolation module is composed of an NMOS transistor Q2, a resistor R17, a resistor R18 and a resistor R19, so that unidirectional transmission of the first control signal or the second control signal is realized through the NOMS transistor Q2. Further, the second headphone terminal AVO2 comprises 4 contacts, wherein the second contact (identification AV-IN/Y/PC _ L) is used to connect to the interface 5(PA5 interface) of the MCU, and the second headphone terminal AVO2 is also connected to the second cascade device. In one embodiment, in order to enhance the driving force of the control signal to ensure that the second cascade device accurately receives the control signal, a driving unit (e.g., a circuit structure shown in fig. 11 and including a transistor QK1, a resistor R20, a resistor R21, and a capacitor C10) is disposed between the PA5 interface of the MCU and the second contact of the second earphone terminal AVO2, and the driving unit can enhance the strength of the control signal by changing the voltage, so as to enhance the driving force of the control signal. In addition, the control module further includes other circuit elements (such as the resistor R22, the resistor R23, the resistor R24, the resistor R25, the resistor R26, the resistor R27, the resistor R28, the capacitor C11, and the capacitor C12 in fig. 11) for ensuring accurate transmission of the first control signal or the second control signal, and the connection relationship and the element parameters of the circuit elements may be set according to actual situations, and the embodiment is not limited.
For example, after receiving the second control signal (extri _ IN) through the 1A interface, the and circuit UK3 sends the second control signal (IR _ DAT _ IC) to the isolation module through the 1y (OUT) interface, after receiving the second control signal (IR _ DAT _ IC), the isolation module outputs the second control signal (IR _ IN _ MCU) to the PA6 interface of the MCU through the NMOS tube Q2, after receiving the second control signal (IR _ IN _ MCU), the MCU sends the second control signal (IR _ OUT _ MCU) through the PA2 interface and the driving unit, and the driving unit sends the enhanced second control signal (EXT _ IRO) to the second earphone terminal AVO2, so as to send the second control signal (EXT _ IRO) to the second cascade device through the second contact of the second earphone terminal AVO 2. Or, after receiving the first control signal (OUT _ SW _ IRIN) through the 1B interface, the and circuit UK3 sends the first control signal (IR _ DAT _ IC) to the isolation module through the 1y (OUT) interface, after receiving the first control signal (IR _ DAT _ IC), the isolation module outputs the first control signal (IR _ IN _ MCU) to the PA6 interface of the MCU through the NMOS tube Q2, after receiving the first control signal (IR _ IN _ MCU), the MCU sends the first control signal (IR _ OUT _ MCU) through the PA2 interface and the driving unit, and the driving unit sends the enhanced first control signal (EXT _ IRO) to the second earphone terminal AVO2, so as to send the first control signal (EXT _ IRO) to the second cascade device through the second contact of the second earphone terminal AVO 2.
The cascade control of the cascade equipment is realized through the circuit structure. It is understood that the above only describes the circuit structure and interface function related to the control signal transmission in fig. 6-12, and the specific functions of other circuit structures and interface functions not described may be determined according to actual situations, and the circuit structures in fig. 6-12 may also be modified in combination with actual situations, such as deleting R3, R4, Q1 and C2 in the demodulation module, deleting R11, DE1, C4 and C5 in the selection module, deleting C8 in the logic module, deleting R17 in the isolation module, deleting C12, R26, R27, R25, R24, R23, C11 and C10.
The embodiment of the application also provides the cascade equipment. The cascade equipment comprises the cascade control device and has corresponding functions and beneficial effects. For technical details which are not described in detail in the cascade arrangement, reference is made to the cascade control arrangement described above.
The embodiment of the present application further provides a cascade control method, which can be executed by the cascade control apparatus. Fig. 13 is a flowchart of a cascade control method according to an embodiment of the present application, and referring to fig. 13, the cascade control method specifically includes:
in step 310, the first input interface receives a first control signal sent by the second output interface, and the second output interface is located in the first cascade device.
And step 320, when the type of the first control signal is a modulation signal, the first input interface sends the first control signal to the demodulation module.
And 340, when the type of the first control signal is a demodulation signal, the first input interface sends the first control signal to the control module and the controlled chip respectively. Step 350 is performed.
And step 360, the first output interface sends the first control signal to the second cascade equipment through the second input interface so that the second cascade equipment responds to the first control signal, the second input interface is located in the second cascade equipment, and the current cascade equipment, the first cascade equipment and the second cascade equipment are associated equipment.
On the basis of the above embodiment, the type of the first control signal is controlled by the selection module. When the selection module controls the first control signal to be a modulation signal, the demodulation module demodulates the first control signal, and sends the demodulated first control signal to the control module and the controlled chip of the current cascade device respectively, and the method comprises the following steps: the demodulation module demodulates the first control signal and sends the demodulated first control signal to the selection module; and the selection module sends the demodulated first control signal to the control module and the controlled chip respectively. When the selection module controls the first control signal to be the demodulation signal, the first input interface sends the first control signal to the control module and the controlled chip respectively, and the control module comprises: the first input interface sends the first control signal to the selection module; the selection module sends the first control signal to the control module and the controlled chip respectively.
On the basis of the above embodiment, the method further includes: the third input interface receives a second control signal sent by the wireless receiving module and respectively sends the second control signal to the control module and the controlled chip, the controlled chip is used for responding to the second control signal, and the wireless receiving module is located in the current cascade equipment; the control module sends the second control signal to the first output interface; the first output interface sends the second control signal to the second cascade device through the second input interface so that the second cascade device responds to the second control signal.
On the basis of the above embodiment, only the first input interface can receive the first control signal or the third input interface can receive the second control signal at the same time. Correspondingly, the step of sending the first control signal to the control module and the controlled chip by the selection module comprises: the selection module sends the first control signal to the logic module, and the logic module sends the first control signal to the control module and the controlled chip respectively. The third input interface sends the second control signal to the control module and the controlled chip, and the third input interface comprises: and the third input interface sends the second control signal to the logic module, and the logic module sends the second control signal to the control module and the controlled chip respectively. The logic module is an AND gate logic module.
On the basis of the above embodiment, the logic module sending the first control signal to the control module and the controlled chip respectively includes: the logic module sends the first control signal to the isolation module and the controlled chip respectively, and the isolation module sends the first control signal to the control module. The logic module respectively sends the second control signal to the control module and the controlled chip, and the logic module comprises: the logic module sends the second control signal to the isolation module and the controlled chip respectively, and the isolation module sends the second control signal to the control module.
The cascade control method provided by the embodiment is executed by the cascade control device, and has corresponding functions and beneficial effects. For technical details which are not described in detail in the cascade control method, reference is made to the above-described cascade control apparatus.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (12)
1. A cascade control apparatus, comprising: the device comprises a first input interface, a demodulation module, a control module and a first output interface;
the first input interface is respectively connected with a second output interface of first cascade equipment, the demodulation module, the control module and a controlled chip of the current cascade equipment, and is used for receiving a first control signal sent by the first cascade equipment through the second output interface, sending the first control signal to the demodulation module when the type of the first control signal is a modulation signal, and sending the first control signal to the control module and the controlled chip when the type of the first control signal is a demodulation signal;
the demodulation module is also connected with the control module and the controlled chip respectively and is used for demodulating the first control signal and sending the demodulated first control signal to the control module and the controlled chip respectively;
the control module is also connected with the first output interface and used for sending the first control signal to the first output interface;
the first output interface is also connected with a second input interface of a second cascade device and used for sending the first control signal to the second cascade device through the second input interface so that the second cascade device responds to the first control signal;
the controlled chip is used for responding to the first control signal;
the current cascade device, the first cascade device and the second cascade device are associated devices.
2. The cascade control apparatus of claim 1, further comprising: a selection module;
the first input interface and the demodulation module are connected with the control module and the controlled chip through the selection module;
the selection module is configured to control a type of the first control signal, and is further configured to receive the first control signal sent by the first input interface or the demodulation module, and send the first control signal to the control module and the controlled chip, respectively.
3. The cascade control apparatus of claim 2, further comprising: a third input interface;
the third input interface is respectively connected with the wireless receiving module, the control module and the controlled chip of the current cascade equipment, and is used for receiving a second control signal sent by the wireless receiving module and respectively sending the second control signal to the control module and the controlled chip;
the control module is further configured to send the second control signal to the first output interface;
the first output interface is further configured to send the second control signal to the second cascade device through the second input interface, so that the second cascade device responds to the second control signal;
the controlled chip is also used for responding to the second control signal.
4. The cascade control apparatus of claim 3, further comprising: a logic module;
the selection module and the third input interface are connected with the control module and the controlled chip through the logic module;
the logic module is configured to receive the first control signal sent by the selection module or the second control signal sent by the third input interface, and further configured to send the first control signal or the second control signal to the control module and the controlled chip, respectively.
5. The cascade control apparatus of claim 4, wherein the logic module comprises an AND gate logic module.
6. The cascade control apparatus of claim 5, further comprising: an isolation module;
the logic module is connected with the control module through the isolation module;
the isolation module is used for transmitting the first control signal or the second control signal sent by the logic module to the control module in a unidirectional way.
7. The cascade control apparatus of claim 3, wherein the wireless receiving module comprises an infrared remote control receiving module.
8. The cascade control apparatus as claimed in claim 1, wherein the current cascade device is a tv, and the controlled chip comprises a tv motherboard chip.
9. The cascade control apparatus of claim 1, wherein the first input interface comprises a first earphone terminal; the first output interface includes a second earphone terminal.
10. A cascade arrangement, characterized in that it comprises a cascade control apparatus according to any one of claims 1-9.
11. A cascade control method, comprising:
a first input interface receives a first control signal sent by a second output interface, and the second output interface is positioned in first cascade equipment;
when the type of the first control signal is a modulation signal, the first input interface sends the first control signal to a demodulation module;
the demodulation module demodulates the first control signal, and sends the demodulated first control signal to the control module and a controlled chip of the current cascade equipment respectively, and the controlled chip is used for responding to the first control signal; or the like, or, alternatively,
when the type of the first control signal is a demodulation signal, the first input interface sends the first control signal to the control module and the controlled chip respectively;
the control module sends the first control signal to a first output interface;
the first output interface sends the first control signal to second cascade equipment through a second input interface so that the second cascade equipment responds to the first control signal, the second input interface is located in the second cascade equipment, and the current cascade equipment, the first cascade equipment and the second cascade equipment are associated equipment.
12. The cascade control method of claim 11, further comprising:
a third input interface receives a second control signal, wherein the second control signal is sent by a wireless receiving module of the current cascade equipment;
the third input interface sends the second control signal to the control module and the controlled chip respectively, and the controlled chip is used for responding to the second control signal;
the control module sends the second control signal to the first output interface;
the first output interface sends the second control signal to the second cascade equipment through the second input interface so that the second cascade equipment responds to the second control signal.
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