CN114697144B - Communication device, control device and communication equipment - Google Patents
Communication device, control device and communication equipment Download PDFInfo
- Publication number
- CN114697144B CN114697144B CN202011613522.0A CN202011613522A CN114697144B CN 114697144 B CN114697144 B CN 114697144B CN 202011613522 A CN202011613522 A CN 202011613522A CN 114697144 B CN114697144 B CN 114697144B
- Authority
- CN
- China
- Prior art keywords
- circuit
- identification
- identification circuit
- communication
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 282
- 238000010586 diagram Methods 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Telephonic Communication Services (AREA)
Abstract
The application discloses a communication device, a control device and communication equipment, wherein the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit and is used for being connected with the control device; the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit and is used for being connected with the control device, and the first identification circuit is used for being cooperated with the control device to control connection/disconnection of the first communication circuit and the control device in a hardware logic mode. By the mode, the safety of the original communication device can be improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communications device, a control device, and a communications device.
Background
With the development of the internet of things technology, intelligent products enter lives of ordinary people in a large number, the use experience becomes an important consideration factor of intelligent product manufacturers, and the communication connection experience of the intelligent products is important. The wireless communication hardware part of the intelligent product is mostly connected with the product main board by adopting a communication device, and when the communication device is failed or damaged, the communication device can be conveniently and directly replaced for maintenance.
The firmware content of the original communication device is easy to be directly read by cracking, so that the firmware content is copied into the non-original communication device; so that maintenance personnel can use the non-original communication device to carry out replacement maintenance. Non-original communication devices may have quality-related problems, such as unqualified power stability, radio frequency parameters, antenna parameters, etc., resulting in poor user experience, increased user complaint rate due to communication connection experience, and influence on public praise of intelligent products.
Disclosure of Invention
The application mainly solves the technical problem of providing a communication device, a control device and communication equipment, which can improve the safety of the original communication device.
In order to solve the technical problems, the application adopts a technical scheme that: providing a communication device, wherein the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, and the first interface circuit is connected with the first communication circuit and is used for being connected with a control device; the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit and is used for being connected with the control device; the first identification circuit comprises a first resistor, one end of the first resistor is connected with a first identification circuit, the first identification circuit is used for being connected with a second identification circuit in the control device, and the other end of the first resistor is grounded; the first identification line is capable of generating a first divided voltage at the first resistor when connected to a second identification circuit in the control device to control connection/disconnection of the first communication circuit and the control device based on the first divided voltage.
In an embodiment, the first interface circuit includes a first power supply circuit, and the first voltage dividing can trigger the second identification circuit to connect/disconnect the second power supply circuit and the first power supply circuit of the control device so as to control the power on/off of the first communication circuit and the control device.
In order to solve the technical problems, the application adopts a technical scheme that: providing a control device, wherein the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit; the second interface circuit is connected with the second communication circuit and is used for being connected with the communication device; the second identification circuit is connected with a second interface circuit; the second identification circuit is connected with the second identification circuit and is used for being connected with the communication device; the second identification circuit is used for being connected with a first identification circuit of the communication device, and when the second identification circuit is connected with the first identification circuit, a first partial voltage can be generated on a first resistor of the first identification circuit of the communication device, so that connection/disconnection of the second communication circuit and the communication device can be controlled based on the first partial voltage.
In an embodiment, the second interface circuit includes a second power supply circuit, the second identification circuit includes a fourth resistor and a first switch, a first end and a second end of the first switch are connected to the second power supply circuit, a third end of the first switch is connected to one ends of the second identification circuit and the fourth resistor, the other end of the fourth resistor is connected to the second power supply circuit, and the second identification circuit is used for being connected to the first identification circuit in the communication device; the first voltage dividing can trigger the first switch to connect/disconnect the second power supply line and the first power supply line of the control device to control the energization/de-energization of the second communication circuit and the communication device.
In order to solve the technical problems, the application adopts a technical scheme that: providing a communication device, wherein the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, and the first interface circuit is connected with the first communication circuit and is used for being connected with a control device; the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit and is used for being connected with the control device; the first identification circuit comprises a second resistor, one end of the second resistor is grounded, the other end of the second resistor is connected with the first identification circuit, the first identification circuit is used for being connected with a second identification circuit in the control device, and when the first identification circuit is connected with the second identification circuit in the control device, a second partial pressure can be generated in the second resistor so as to control connection/disconnection of the first communication circuit and the control device based on the second partial pressure.
In an embodiment, the first identification circuit includes a third resistor, one end of the second resistor is grounded, the other end of the second resistor is connected to one end of the third resistor, the other end of the third resistor is connected to the first interface circuit, and one end of the second resistor connected to the third resistor is connected to the first identification circuit.
In an embodiment, the first interface circuit includes a first signal circuit, and the second voltage division can trigger the second identification circuit to connect/disconnect the second signal circuit and the first signal circuit of the control device.
In order to solve the technical problems, the application adopts another technical scheme that: providing a control device, wherein the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, and the second interface circuit is connected with the second communication circuit and is used for being connected with the communication device; the second identification circuit is connected with a second interface circuit; the second identification circuit is connected with the second identification circuit and is used for being connected with the communication device; the second identification circuit is used for connecting the first identification circuit of the communication device, and when the second identification circuit is connected with the first identification circuit, a second partial voltage can be generated on a second resistor of the first identification circuit of the communication device so as to control connection/disconnection of the second communication circuit and the communication device based on the second partial voltage.
In an embodiment, the second interface circuit includes a second signal circuit, and the second identification circuit includes a fifth resistor, a sixth resistor, a seventh resistor, a second switch, and a triode; one end of the fifth resistor is connected with the second power supply circuit, the other end of the fifth resistor is connected with the second signal circuit, the first end of the second switch and one end of the sixth resistor, the second end of the second switch is used for being connected with the first signal circuit of the communication device, one end of the seventh resistor is used for being connected with the second identification circuit, the other end of the seventh resistor is connected with the first end of the triode, the second end of the triode is connected with the third end of the second switch and the other end of the sixth resistor, the third end of the triode is grounded, and the second identification circuit is used for being connected with the first identification circuit in the communication device; the second voltage dividing can trigger the second switch to connect/disconnect the second signal line and the first signal line of the communication device so as to control the signal connection/disconnection of the second communication circuit and the communication device.
In order to solve the technical problems, the application adopts another technical scheme that: the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit; the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit; the first identification circuit comprises a first resistor, one end of the first resistor is connected with a first identification circuit, the first identification circuit is connected with a second identification circuit in the control device, and the other end of the first resistor is grounded; the first identification line is capable of generating a first divided voltage at the first resistor when connected to a second identification circuit in the control device to control connection/disconnection of the first communication circuit and the second communication circuit based on the first divided voltage.
In order to solve the technical problems, the application adopts another technical scheme that: the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit; the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit; the first identification circuit comprises a second resistor and a third resistor, one end of the second resistor is grounded, the other end of the second resistor is connected with one end of the third resistor, the other end of the third resistor is connected with the first interface circuit, one end of the second resistor, which is connected with the third resistor, is connected with the first identification circuit, the first identification circuit is connected with the second identification circuit, and a second voltage division is generated on the second resistor when the first identification circuit is connected with the second identification circuit so as to control connection/disconnection of the first communication circuit and the control device based on the second voltage division.
In order to solve the technical problems, the application adopts another technical scheme that: the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit; the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit; the first identification circuit comprises a first resistor and a second resistor, one end of the first resistor is connected with a first identification circuit, the first identification circuit is connected with a second identification circuit in the control device, the other end of the first resistor is grounded, and a first voltage division can be generated when the first identification circuit is connected with the second identification circuit in the control device; one end of the second resistor is grounded, the other end of the second resistor is connected with a first identification circuit, the first identification circuit is connected with a second identification circuit, and a second voltage division is generated on the second resistor when the first identification circuit is connected with the second identification circuit so as to control connection/disconnection of the first communication circuit and the control device based on the first voltage division and the second voltage division.
The beneficial effects of the application are as follows: in contrast to the prior art, the application provides the control device and the communication device with the first identification circuit and the second identification circuit, by means of which the connection between the control device and the communication device can be controlled. By the mode, the complexity of connection of the communication device and the control device can be increased, the difficulty of copying the communication device is further increased, the safety of the original communication device is improved, and the negative influence caused by the non-original communication device is avoided.
Drawings
Fig. 1 is a schematic diagram of an equivalent circuit structure of a communication device in an embodiment of the present application;
fig. 2 is a schematic diagram of an equivalent circuit structure of a first identification circuit in an embodiment of the present application;
fig. 3 is a schematic diagram of an equivalent circuit structure of a second identification sub-circuit a according to an embodiment of the present application;
fig. 4 is a schematic diagram of an equivalent circuit structure of a second identification sub-circuit B according to an embodiment of the present application;
fig. 5 is a schematic diagram of an equivalent circuit configuration of a communication device in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and effects of the present application clearer and more specific, the present application will be described in further detail below with reference to the accompanying drawings and examples.
The application provides a communication device which is provided with a communication device to realize a mutual/internet of things communication function. The communication device may be integrated on the control device of the communication apparatus or may be a separate communication device, which is connected to the control device of the communication apparatus via a communication interface. The communication mode of the independent communication device and the control device can be an asynchronous serial full/half duplex mode. The communication interface can adopt general voltage (such as 4.5-5.5 Vdc), current (such as 20 mu A-30 mA), and other specifications can be selected from general asynchronous serial transmission (UART) interface standard specifications (such as 9-bit, 10-bit, 11-bit and other transmission modes). Of course, the use of non-standard interface voltages or currents should not be excluded herein.
By selecting an independent communication device, when the communication device is failed or damaged, the communication device can be conveniently and directly replaced for maintenance. During maintenance, the firmware content of the original communication device is easy to be directly cracked and read, so that the firmware content is copied into a non-original communication device; so that maintenance personnel can use the non-original communication device to carry out replacement maintenance. Non-original communication devices may have quality-related problems, such as unqualified power stability, radio frequency parameters, antenna parameters, etc., resulting in poor user experience, increased user complaint rate due to communication connection experience, and influence on public praise of communication equipment.
Based on the above, the application provides a communication device, which is characterized in that a hardware identification circuit is respectively added on an independent communication device and a communication device control device, and the hardware connection between the communication device and the control device is sequentially controlled through hardware logic. When the non-native communication device is not connected in accordance with the hardware logic system, the non-native communication device will not function properly. By adding the hardware identification circuit, the complexity of hardware connection of the communication device and the control device can be increased, so that the difficulty of copying the communication device is increased, the safety of the original communication device is improved, and the negative influence caused by the non-original communication device is avoided.
Referring to fig. 1, fig. 1 is a schematic diagram of an equivalent circuit structure of a communication device according to an embodiment of the present application. In this embodiment, the communication device comprises a control means and a communication means, the communication means being connected to the control means via a communication interface, a first end of the communication interface being connected to the control means of the communication device, and a second end of the communication interface being connected to the communication means. The communication interface may be a 4-wire interface, and specifically includes a power supply terminal (Vcc), a serial transmitting terminal (TxD), a serial receiving terminal (RxD), and a common voltage reference terminal (commonly referred to as a ground terminal GND). Specifically, the power supply terminal (Vcc) of the control device and the communication device is connected to the power supply provided in the control device, the serial receiving terminal (RxD 2) of the control device is connected to the serial transmitting terminal (TxD 1) of the communication device, the serial transmitting terminal (TxD 2) of the control device is connected to the serial receiving terminal (RxD 1) of the communication device, and the common voltage reference terminal of the control device and the communication device is connected to the common voltage reference terminal in the control device.
In the application, the first identification circuit and the second identification circuit are arranged on the control device and the communication device, and the connection/disconnection between the control device and the communication device can be controlled through the first identification circuit and the second identification circuit. When the first identification circuit is matched with the second identification circuit, connection between the control device and the communication device can be realized, and when the first identification circuit is not matched with the second identification circuit, abnormal connection between the control device and the communication device can occur. By the mode, the complexity of connection of the communication device and the control device can be increased, the difficulty of copying the communication device is further increased, the safety of the original communication device is improved, and the negative influence caused by the non-original communication device is avoided.
With continued reference to fig. 1, in one embodiment, the second identification circuit 10 includes a second identification sub-circuit a110 and a second identification sub-circuit B120, where the second identification sub-circuit a110 and the second identification sub-circuit B120 are respectively connected to the first identification circuit 20, the second identification sub-circuit a110 may be used to control whether the control device supplies power to the communication device, and the second identification sub-circuit B120 may be used to control on/off of a signal path between the control device and the communication device.
Specifically, the first identification circuit 20 may be configured to process a power signal (first power signal) input to the second identification sub-circuit a110 to obtain a first identification signal (Ctrl 1), and the second identification sub-circuit a110 may control whether the control device supplies power to the communication device based on the first identification signal. Wherein the controllable control means is operable to power the communication means when the magnitude of the first identification signal is greater than a first threshold value. That is, the second identification sub-circuit a110 is operable to receive the first power signal and output the second power signal to the communication device to power the communication device when the magnitude of the first identification signal is greater than the first threshold.
The first identification circuit 20 may be configured to process a power signal (second power signal) input to the second identification sub-circuit B120 to obtain a second identification signal (Ctrl 2), and the second identification sub-circuit B120 may control on/off of a signal path between the control device and the communication device based on the second identification signal. And when the amplitude of the second identification signal is larger than a second threshold value, the signal path between the controllable control device and the communication device is conducted. That is, the second identification sub-circuit B120 is configured to receive the second power signal, and when the magnitude of the second identification signal is greater than the second threshold, control the conduction of the signal path between the control device and the communication device, so as to implement a communication connection between the control device and the communication device. The power signal input to the second identification sub-circuit B120 may be provided by the second identification sub-circuit a110, i.e. the second identification sub-circuit a110 may output the second power signal to the second identification sub-circuit B120 to power the second identification sub-circuit B120.
In one embodiment, the first identification circuit 20 includes a first resistor and a second resistor.
The second identification sub-circuit a110 includes a first switch, a first end of the first switch is connected to the first power end, a second end of the first switch is connected to the second power end, a third end of the first switch is connected to one end of the first resistor, and the other end of the first resistor is grounded. The first resistor of the first identification circuit 20 can divide the first power signal to generate a first identification signal with a certain amplitude, so as to control on/off of the first switch, and further control whether to supply power to the communication device.
The second identification sub-circuit B120 includes a second switch, a first end of the second switch is connected to the signal receiving end of the control device, a second end of the second switch is connected to the signal transmitting end of the communication device, a third end of the second switch is connected to one end of the second resistor, and the other end of the second resistor is grounded. The second resistor of the first identification circuit 20 can divide the second power signal to generate a second identification signal with a certain amplitude, so as to control on/off of the second switch, and further control on/off of a signal path between the control device and the communication device.
When the communication device is an original communication device, the communication device is provided with a first identification circuit, after the communication device is connected with the control device, the second identification sub-circuit A is conducted with the first identification circuit when the control device is electrified, and a first identification signal in a high-level state can be generated due to the existence of a first resistor so as to control the conduction of the first switch, so that the conduction of a power supply channel between the control device and the communication device is realized, and the communication device is powered. When the communication device is not original, the communication device is not provided with a first identification circuit, after the communication device is connected with the control device, when the control device is electrified, a first identification signal in a low level state is generated due to the fact that the first resistor is not arranged, and the first switch is disconnected. By providing the second identification sub-circuit a and the first identification circuit, replacement of a non-original communication device, that is, if the non-original communication device is provided, normal power supply is not possible, and normal operation is not possible.
Similarly, when the communication device is an original communication device, the communication device is provided with a first identification circuit, after the communication device is connected with the control device, the second identification sub-circuit B is conducted with the first identification circuit when the control device is electrified, and a second identification signal in a high-level state can be generated due to the existence of a second resistor, so that the second switch is controlled to be conducted, the conduction of a signal channel between the control device and the communication device is realized, and the communication connection between the control device and the communication device is established. When the communication device is not original, the communication device is not provided with a first identification circuit, after the communication device is connected with the control device, when the control device is electrified, a second identification signal in a low level state is generated due to the fact that a second resistor is not arranged, and the second switch is disconnected. By providing the second identification sub-circuit B, when the non-original communication device is used, the communication connection between the control device and the communication device cannot be normally established, and replacement of the non-original communication device can be prevented. The second identification sub-circuit A and the second identification sub-circuit B can be simultaneously arranged, and through the arrangement, even if power is supplied to the communication device through other paths, the signal line can not be communicated, so that the safety of the original communication device is further enhanced. In other embodiments, only the second identification sub-circuit a or only the second identification sub-circuit B may be selectively provided, which is not limited herein.
Referring to fig. 2, fig. 2 is a schematic diagram of an equivalent circuit structure of a first identification circuit according to an embodiment of the application. In this embodiment, the first identification circuit 20 includes a first resistor R1, a second resistor R2, and a third resistor R3. One end of the first resistor R1 is used for being connected with the second identifier circuit A, the other end of the first resistor R1 is grounded, one end of the third resistor R3 is used for being connected with a power supply end (Vcc), the other end of the third resistor R3 is used for being connected with one end of the second identifier circuit B and one end of the second resistor R2, and the other end of the second resistor R2 is connected with one grounded end of the first resistor R1, namely the other end of the second resistor R2 is grounded.
The first identification circuit 20 may be divided into a first identification sub-circuit a and a first identification sub-circuit B, where the first identification sub-circuit a is used to connect to the second identification sub-circuit a, and provides a first identification signal (Ctrl 1) to the second identification sub-circuit a, and the first identification sub-circuit a includes a first resistor R1. The first identification sub-circuit B is used for connecting with the second identification sub-circuit B, providing a second identification signal (Ctrl 2) for the second identification sub-circuit B, and the first identification sub-circuit B comprises a second resistor R2 and a third resistor R3. When the communication control unit sets only the second identification sub-circuit a, only the first identification sub-circuit a may be set, and when the second identification circuit sets only the second identification sub-circuit B, only the first identification sub-circuit B may be set. In other embodiments, the first identification circuit may be other equivalent circuit structures, for example, the resistance value and the number of the resistors are not limited.
Referring to fig. 3, fig. 3 is a schematic diagram of an equivalent circuit structure of a second identification sub-circuit a according to an embodiment of the application. In this embodiment, the second identification sub-circuit a110 includes a fourth resistor R4 and a first switch Q1, a first end of the first switch Q1 is connected to a first power supply terminal (Von), a second end of the first switch Q1 is connected to a second power supply terminal (Vcc), a third end of the first switch Q1 is used for connecting the first identification circuit and one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the first power supply terminal (Von); the second identification sub-circuit a110 is configured to identify a first identification signal (Ctrl 1) of the first identification circuit, and control on/off of the first switch Q1 based on the first identification signal (Ctrl 1), thereby controlling whether the control device supplies power to the communication device. In other embodiments, the second identification sub-circuit a may be other equivalent circuit structures, for example, the resistance value and the number of the resistors are not limited.
Referring to fig. 4, fig. 4 is a schematic diagram of an equivalent circuit structure of a second identification sub-circuit B according to an embodiment of the application. In this embodiment, the second identification sub-circuit B120 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a second switch Q2, and a triode; one end of the fifth resistor R5 is connected with a power supply end (Vcc), the other end of the fifth resistor R5 is connected with a signal receiving end (RX-1) of the control device, a first end of the second switch R2 and one end of the sixth resistor R6, a second end of the second switch Q2 is connected with a signal transmitting end (TX-2) of the communication device, one end of the seventh resistor R7 is used for being connected with a first identification circuit, the other end of the seventh resistor R7 is connected with a first end of a triode, a second end of the triode is connected with a third end of the second switch Q2 and the other end of the sixth resistor R6, and a third end of the triode is grounded; the second identification sub-circuit B120 is configured to identify a second identification signal (Ctrl 2) of the first identification circuit, and control on/off of the second switch Q2 based on the second identification signal (Ctrl 2), thereby controlling on/off of a signal path between the control device and the communication device. In other embodiments, the second identification sub-circuit B may be other equivalent circuit structure diagrams, for example, the resistance value and the number of the resistors are not limited.
Referring to fig. 5, fig. 5 is a schematic diagram of an equivalent circuit structure of a communication device according to an embodiment of the present application. In this embodiment, when the control device is connected to the communication device, the first resistor R1 of the first identification circuit 20 is connected to the third terminal of the first switch Q1 of the second identification sub-circuit a110 and one terminal of the fourth resistor R4; the first resistor R1 of the first identification circuit 20 can divide the first power signal to generate a first identification signal with a certain amplitude, so as to control the first switch Q1 to be turned on, so that Von and Vcc are turned on, and further control the control device to supply power to the communication device. The first resistor can regulate and control the amplitude of the first identification signal, and the first identification signals with different amplitudes are used for controlling the on/off of the first switch.
When the control device is connected with the communication device, the second resistor R2 of the first identification circuit 20 is connected with one end of the seventh resistor R7 of the second identification sub-circuit B120, and is further connected with the third end of the second switch Q2 of the second identification sub-circuit B110; the second resistor R2 of the first identification circuit 20 can divide the second power signal to generate a second identification signal with a certain amplitude, so as to control the on/off of the second switch Q2, further control the conduction of the signal path between the control device and the communication device, and establish the communication connection between the control device and the communication device. Namely, the second resistor can regulate and control the amplitude of the second identification signal, and the second identification signals with different amplitudes are used for controlling the on/off of the second switch. Wherein, the number of the second identification sub-circuits B120 is two, which are respectively used for connecting TX2 and RX1, RX2 and TX1; only one of the two second identification sub-circuits B120 is shown in the figure, and may share one identification line (Ctrl 2), or may be connected to the identification line (Ctrl 2) respectively.
In the above embodiment, by providing the first identification circuit and the second identification circuit on the control device and the communication device, the connection between the control device and the communication device can be controlled by the first identification circuit and the second identification circuit. When the first identification circuit and the second identification circuit are matched, connection of the control device and the communication device can be realized, and when the first identification circuit and the second identification circuit are not matched, abnormal connection of the control device and the communication device can occur. By the mode, the complexity of connection of the communication device and the control device can be increased, the difficulty of copying the communication device is further increased, the safety of the original communication device is improved, and the negative influence caused by the non-original communication device is avoided.
In the above embodiment, the provided communication device can be used as an independent communication device to be connected with communication equipment, and is easy to detach, replace and repair.
The application also provides a communication device, which comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit and is used for being connected with the control device; the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit and is used for being connected with the control device; the first identification circuit is used for cooperating with the control device and controlling whether the first communication circuit and the control device are normally connected or not in a hardware logic mode. The first communication circuit is configured to implement a communication function, and the first identification circuit includes a power supply terminal (Vcc), a serial transmitting terminal (TxD), a serial receiving terminal (RxD), a common voltage reference terminal (commonly referred to as a ground terminal GND), and the first identification circuit includes a Ctrl1 terminal and a Ctrl2 terminal. The communication device may be of any of the above embodiments, as described in detail with reference to the above embodiments.
In the above embodiments, the control device provided may be applied to a communication apparatus, and connected to a communication device of the communication apparatus.
The application also provides a control device, which comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit. The second communication circuit is configured to implement a communication function, and the second identification circuit structure and function refer to the description of the foregoing embodiments, where the second interface circuit includes a power supply terminal (Vcc), a serial transmitting terminal (TxD), a serial receiving terminal (RxD), a common voltage reference terminal (commonly called a ground terminal GND), and the like, and the second identification circuit includes a Ctrl1 terminal and a Ctrl2 terminal. The control device may be of any of the above embodiments, as described in detail with reference to the above embodiments.
In the above embodiment, the provided communication device may be an intelligent home device, such as an intelligent home appliance, an intelligent household appliance, or the like. Specifically, the communication device can be an intelligent refrigerator, an intelligent air conditioner, an intelligent electric cooker, an intelligent sound box, an intelligent television and the like, and the specific form of the communication device is not limited.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.
Claims (10)
1. A communication device, comprising:
a first communication circuit;
a first interface circuit connected to the first communication circuit and connected to the control device;
the first identification circuit is connected with the first interface circuit;
the first identification circuit is connected with the first identification circuit and is used for being connected with the control device;
the first identification circuit comprises a first resistor, one end of the first resistor is connected with the first identification circuit, the first identification circuit is used for being connected with a second identification circuit in the control device, and the other end of the first resistor is grounded;
the first identification circuit can generate a first voltage division when being connected with a second identification circuit in the control device, the first interface circuit comprises a first power supply circuit, and the first voltage division can trigger the second identification circuit to connect/disconnect the first power supply circuit with/from a second power supply circuit of the control device so as to control the power on/off of the first communication circuit and the control device.
2. A control device, comprising:
a second communication circuit;
a second interface circuit connected to the second communication circuit for connection to a communication device;
the second identification circuit is connected with the second interface circuit;
the second identification circuit is connected with the second identification circuit and is used for being connected with the communication device;
the second identification circuit is used for being connected with a first identification circuit of the communication device, when the second identification circuit is connected with the first identification circuit, a first voltage division can be generated on a first resistor of the first identification circuit of the communication device, the second interface circuit comprises a second power supply circuit, and the first voltage division can trigger the second identification circuit to connect/disconnect the second power supply circuit with the first power supply circuit of the communication device so as to control the power on/off of the second communication circuit and the communication device.
3. The control device of claim 2, wherein the control device comprises a control device,
the second identification circuit comprises a fourth resistor and a first switch, the first switch is arranged on the second power supply circuit, a first end and a second end of the first switch are used for being connected with the second power supply circuit at two ends of the first switch, a third end of the first switch is connected with the second identification circuit and one end of the fourth resistor, the other end of the fourth resistor is connected with the second power supply circuit, and the second identification circuit is used for being connected with the first identification circuit in the communication device; the first voltage dividing can trigger the first switch to connect/disconnect the second power supply line and the first power supply line so as to control the power on/off of the second communication circuit and the communication device.
4. A communication device, comprising:
a first communication circuit;
a first interface circuit connected to the first communication circuit and connected to the control device;
the first identification circuit is connected with the first interface circuit;
the first identification circuit is connected with the first identification circuit and is used for being connected with the control device;
the first identification circuit comprises a second resistor, one end of the second resistor is grounded, the other end of the second resistor is connected with the first identification circuit, and the first identification circuit is used for being connected with a second identification circuit in the control device; the first identification circuit can generate a second partial voltage when being connected with a second identification circuit in the control device, the first interface circuit comprises a first signal circuit, and the second partial voltage can trigger the second identification circuit to connect/disconnect the first signal circuit with/from a second signal circuit of the control device so as to control the signal connection/disconnection of the first communication circuit and the control device.
5. The communication device of claim 4, wherein the communication device is configured to,
the first interface circuit further comprises a first power supply circuit, the first identification circuit further comprises a third resistor, one end of the second resistor is grounded, the other end of the second resistor is connected with the first identification circuit, one end of the second resistor is connected with one end of the first identification circuit, the other end of the third resistor is connected with the first power supply circuit, and therefore the first communication circuit and the power on/off of the control device are controlled.
6. A control device, comprising:
a second communication circuit;
a second interface circuit connected to the second communication circuit for connection to a communication device;
the second identification circuit is connected with the second interface circuit;
the second identification circuit is connected with the second identification circuit and is used for being connected with the communication device;
the second identification circuit is used for being connected with the first identification circuit of the communication device, when the second identification circuit is connected with the first identification circuit, a second voltage division can be generated on a second resistor of the first identification circuit of the communication device, the second interface circuit comprises a second signal circuit, and the second voltage division can trigger the second identification circuit to connect/disconnect the second signal circuit with/from a first signal circuit of the communication device so as to control signal connection/disconnection of the second communication circuit and the communication device.
7. The control device of claim 6, wherein the control device comprises a control device,
the second interface circuit further comprises a second power supply circuit, and the second identification circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, a second switch and a triode; one end of the fifth resistor is connected with the second power supply circuit, the other end of the fifth resistor is connected with the second signal circuit, the first end of the second switch and one end of the sixth resistor, the second end of the second switch is used for being connected with the first signal circuit, one end of the seventh resistor is used for being connected with the second identification circuit, the other end of the seventh resistor is connected with the first end of the triode, the second end of the triode is connected with the third end of the second switch and the other end of the sixth resistor, the third end of the triode is grounded, and the second identification circuit is used for being connected with the first identification circuit in the communication device;
wherein the second voltage dividing can trigger the second switch to connect/disconnect the second signal line and the first signal line so as to control the signal connection/disconnection of the second communication circuit and the communication device.
8. A communication apparatus is characterized by comprising a communication device and a control device,
the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, the first interface circuit comprises a first power supply circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit;
the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, the second interface circuit comprises a second power supply circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit;
the first identification circuit comprises a first resistor, one end of the first resistor is connected with the first identification circuit, the first identification circuit is connected with a second identification circuit in the control device, and the other end of the first resistor is grounded;
the first identification circuit can generate a first voltage division when being connected with a second identification circuit in the control device, and the first voltage division can trigger the second identification circuit to connect/disconnect the first power supply circuit and the second power supply circuit so as to control the power on/off of the first communication circuit and the second communication circuit.
9. A communication apparatus is characterized by comprising a communication device and a control device,
the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, the first interface circuit comprises a first signal circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit;
the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, the second interface circuit comprises a second signal circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit;
the first identification circuit comprises a second resistor, one end of the second resistor is grounded, the other end of the second resistor is connected with the first identification circuit, the first identification circuit is connected with the second identification circuit, a second partial pressure is generated at the second resistor when the first identification circuit is connected with the second identification circuit, and the second partial pressure can trigger the second identification circuit to connect/disconnect the first signal circuit with the second signal circuit so as to control the signal connection/disconnection of the first communication circuit and the control device.
10. A communication apparatus is characterized by comprising a communication device and a control device,
the communication device comprises a first communication circuit, a first interface circuit, a first identification circuit and a first identification circuit, wherein the first interface circuit is connected with the first communication circuit, the first interface circuit comprises a first power supply circuit and a first signal circuit, and the first identification circuit is connected with the first interface circuit; the first identification circuit is connected with the first identification circuit;
the control device comprises a second communication circuit, a second interface circuit, a second identification circuit and a second identification circuit, wherein the second interface circuit is connected with the second communication circuit and the first interface circuit, the second interface circuit comprises a second power supply circuit and a second signal circuit, and the second identification circuit is connected with the second interface circuit and the first identification circuit; the second identification circuit is connected with the second identification circuit and the first identification circuit;
the first identification circuit comprises a first resistor and a second resistor, one end of the first resistor is connected with the first identification circuit, the first identification circuit is connected with the second identification circuit in the control device, the other end of the first resistor is grounded, and when the first identification circuit is connected with the second identification circuit in the control device, a first voltage division can be generated on the first resistor; one end of the second resistor is grounded, the other end of the second resistor is connected with the first identification circuit, the first identification circuit is connected with the second identification circuit, a second partial pressure is generated at the second resistor when the first identification circuit is connected with the second identification circuit, the first partial pressure can trigger the second identification circuit to be connected/disconnected with the first power supply circuit and the second power supply circuit so as to control the first communication circuit and the control device to be electrified/disconnected, and the second partial pressure can trigger the second identification circuit to be connected/disconnected with the first signal circuit and the second signal circuit so as to control the first communication circuit and the control device to be connected/disconnected with signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613522.0A CN114697144B (en) | 2020-12-30 | 2020-12-30 | Communication device, control device and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613522.0A CN114697144B (en) | 2020-12-30 | 2020-12-30 | Communication device, control device and communication equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114697144A CN114697144A (en) | 2022-07-01 |
| CN114697144B true CN114697144B (en) | 2023-11-10 |
Family
ID=82131961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011613522.0A Active CN114697144B (en) | 2020-12-30 | 2020-12-30 | Communication device, control device and communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114697144B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166672A1 (en) * | 2016-03-31 | 2017-10-05 | 乐视控股（北京）有限公司 | Asynchronous receiver/transmitter and universal serial bus interface multiplexing circuit, and circuit board |
| CN108055029A (en) * | 2018-02-01 | 2018-05-18 | 青岛海信智能商用系统股份有限公司 | A kind of on-off circuit and the electronic equipment with the on-off circuit |
| WO2018103417A1 (en) * | 2016-12-06 | 2018-06-14 | 广州视源电子科技股份有限公司 | Terminal apparatus, read-write apparatus, data transmission system and hardware initialization method |
| CN111668810A (en) * | 2020-05-08 | 2020-09-15 | 深圳市优必选科技股份有限公司 | Power supply control circuit and robot |
| CN111708287A (en) * | 2020-05-08 | 2020-09-25 | 深圳市优必选科技股份有限公司 | Power control circuit and robot |
-
2020
- 2020-12-30 CN CN202011613522.0A patent/CN114697144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166672A1 (en) * | 2016-03-31 | 2017-10-05 | 乐视控股（北京）有限公司 | Asynchronous receiver/transmitter and universal serial bus interface multiplexing circuit, and circuit board |
| WO2018103417A1 (en) * | 2016-12-06 | 2018-06-14 | 广州视源电子科技股份有限公司 | Terminal apparatus, read-write apparatus, data transmission system and hardware initialization method |
| CN108055029A (en) * | 2018-02-01 | 2018-05-18 | 青岛海信智能商用系统股份有限公司 | A kind of on-off circuit and the electronic equipment with the on-off circuit |
| CN111668810A (en) * | 2020-05-08 | 2020-09-15 | 深圳市优必选科技股份有限公司 | Power supply control circuit and robot |
| CN111708287A (en) * | 2020-05-08 | 2020-09-25 | 深圳市优必选科技股份有限公司 | Power control circuit and robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114697144A (en) | 2022-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3829071B1 (en) | Method, apparatuses and test system for transferring data during power transfer in a wireless power transfer system | |
| EP3425296A1 (en) | Starting circuit for starting air conditioner, and air conditioner | |
| CN103633988B (en) | Protectiveness multiplexer circuit, the method for operation storbing gate and storbing gate system | |
| CN101562585A (en) | Line driver architecture for 10/100/1000 base-t ethernet | |
| CN103684407A (en) | Otg device | |
| CN114697144B (en) | Communication device, control device and communication equipment | |
| US20130238911A1 (en) | Power supply device for computer systems and computer system using the power supply device | |
| US20210104889A1 (en) | Hot swapping protection device for power over ethernet and method thereof | |
| CN101877597B (en) | Simplex communication circuit | |
| US20230069028A1 (en) | Motor control system providing single output signal and high number of speed settings | |
| CN108233957B (en) | Data transmitting method | |
| CN103118143B (en) | Multiplex circuit of serial interface and Ethernet interface | |
| CN105094274B (en) | Switching Power Supply frequency setting circuit, method and electronic equipment | |
| CN106888396B (en) | Separated television control circuit and method and separated television | |
| CN110738811B (en) | Doorbell conversion device and doorbell assembly | |
| CN220627045U (en) | Conversion circuit for converting serial port into two buses and equipment with serial port into two buses | |
| CN106649178B (en) | Equipment interface and equipment interface mode switching device and method | |
| US20200057734A1 (en) | Baseboard management controller switching method for sharing network protocol | |
| CN112578890A (en) | Server device capable of remotely controlling node power supply | |
| US11025442B2 (en) | Method for a network apparatus to control power provision to a powered device connected to the network apparatus, network apparatus implementing the method, and power switching management module of the network apparatus | |
| CN116545809B (en) | Self-adaptive matching module and communication structure | |
| CN216087052U (en) | Circuit for controlling electromagnetic oven module and voice module to switch and work and cooking robot | |
| CN114760164B (en) | Isolated asynchronous communication circuit and method for household appliance | |
| CN220732990U (en) | Play switching circuit and play switching intelligent control machine | |
| CN210573318U (en) | Signal transmission circuit and electrical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |