CN112928792A - Protocol decoy device supporting independent power supply of multiple fast charging protocols - Google Patents
Protocol decoy device supporting independent power supply of multiple fast charging protocols Download PDFInfo
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- CN112928792A CN112928792A CN202110098355.9A CN202110098355A CN112928792A CN 112928792 A CN112928792 A CN 112928792A CN 202110098355 A CN202110098355 A CN 202110098355A CN 112928792 A CN112928792 A CN 112928792A
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- 238000006243 chemical reaction Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims 2
- 238000012360 testing method Methods 0.000 description 7
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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Abstract
The invention discloses an independently powered protocol decoy device supporting multiple fast charging protocols, which comprises a protocol unit, a display and control unit and a switch unit, wherein the protocol unit is used for receiving a plurality of protocol messages; the display and control unit is connected with the protocol unit, displays the protocol content and provides protocol mode selection; the protocol unit is electrically connected with the control unit of the charger and establishes protocol handshake; the protocol unit is connected with and controls the switch unit, the protocol unit is connected with the switch unit after protocol handshaking, and the power unit of the charger is connected with the power unit of the electronic load through the switch unit; the system also comprises a power supply unit which independently supplies power for the protocol unit and the display and control unit. The invention changes the power supply mode of the protocol decoy device from the power supply of the output port to the independent power supply through the circuit module with independent power supply. The invention can adapt to various charging protocols and more accurately detect the actually measured power of the charger.
Description
Technical Field
The invention relates to the technical field of USB port fast charging, in particular to an independently powered protocol decoy device supporting multiple fast charging protocols.
Background
For the equipment that has the USB port and fill soon, like the Type C port of common cell-phone quick charger (Type A/Type C), notebook Type C charger, display/TV, the same port corresponds output specification many, use the charger as an example, same port output may have contained 5V/3A, 9V/3A, 20V/3.25A, 3.3V-11V/2.7A, 12V/3A, multiple specifications such as 20V/3.25A, need realize the agreement of shaking hands earlier when the output corresponds the specification, correspond different output specifications through the agreement of shaking hands that corresponds.
Under laboratory conditions, in order to test items such as the actual output size of various specifications and the power consumption of the whole machine, the test method generally comprises the following steps: and the protocol decoy is used for inducing a corresponding protocol, an adjustable electronic load is used for replacing actual power consumption equipment to be connected to the protocol decoy, and an output specification is selected according to the test requirement. Protocol induction is carried out by using a protocol decoy in the current stage of a laboratory, but the power consumption of the decoy is also calculated, namely: measured power = load power (required result) + decoy power; therefore, the result is inaccurate, and the existing cheater supports less protocol content, and the Type A/Type C port needs different cheaters for induction.
Disclosure of Invention
The invention aims to provide an independently-powered protocol decoy device supporting multiple fast charging protocols.
The technical scheme adopted by the invention is as follows:
a protocol decoy device supporting independent power supply of multiple fast charging protocols comprises a protocol unit, a display and control unit and a switch unit; the display and control unit is connected with the protocol unit, displays the protocol content and provides protocol mode selection; the protocol unit is electrically connected with the control unit of the charger and establishes protocol handshake; the protocol unit is connected with and controls the switch unit, the protocol unit is connected with the switch unit after protocol handshaking, and the power unit of the charger is connected with the power unit of the electronic load through the switch unit; the system also comprises a power supply unit which independently supplies power for the protocol unit and the display and control unit.
Further, as a preferred embodiment, the power supply unit has a built-in battery or is connected to an external power supply through a power interface, so as to supply power by 2 ways of battery and external power supply.
Further, as a preferred embodiment, the switching unit includes an input interface and an output interface, the switching unit is connected to the VBUS/GND pin of the charger via the input interface, and the switching unit is connected to the electronic load via the output interface.
Further, as a preferred embodiment, the input interfaces comprise Type A, Type C and Micro USB input interfaces matched with the charger, and the output interfaces comprise a V + power output interface and a V-power output interface matched with the electronic load.
Further, as a preferred embodiment, the display and control unit comprises a display module and a control module, wherein the display module comprises a display screen, and the display screen displays the prompt information and the protocol content; the control unit comprises a plurality of control keys and is used for switching the equipment and selecting the protocol mode.
Further, as a preferred embodiment, the system also comprises an accommodating shell and a bracket for supporting and placing the accommodating shell, wherein the protocol unit, the display and control unit and the switch unit are arranged in the accommodating shell.
Further, as a preferred embodiment, the protocol unit comprises a protocol sniffing module, a protocol conversion module, and a protocol signal module; the protocol sniffing module is used for detecting an accessed port and sniffing a fast-charging protocol supported by the protocol sniffing module, the protocol conversion module is used for converting the selected protocol into a control signal and sending the control signal to the corresponding protocol signal module, and the protocol signal module is used for obtaining a corresponding protocol signal through a resistance voltage division mode according to the protocol requirement so as to realize protocol handshaking.
By adopting the technical scheme, the decoy device comprises the power supply unit, the power supply unit is provided with the built-in battery and the power supply interface, 2 modes of the battery and external power supply are adopted, and the power supply of the decoy device does not need to consume the output power of the charger. Aiming at the equipment supporting the USB port to be quickly charged, the protocol decoy has a unique hardware structure in order to carry out corresponding overall machine input and port output tests under the laboratory conditions, and the power supply mode of the protocol decoy is changed from the power supply of an output port into the independent power supply through an independent power supply circuit module so as to meet the following requirements: measured power = load power (required result). The invention can adapt to various charging protocols and more accurately detect the actually measured power of the charger.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and the detailed description;
FIG. 1 is a schematic diagram of an independently powered protocol spoofer supporting multiple fast charging protocols according to the present invention;
fig. 2 is a schematic diagram of the working flow of an independently powered protocol spoofer supporting multiple fast charging protocols according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Aiming at the equipment supporting the USB port to be quickly charged, in order to carry out corresponding complete machine input and port output tests under the laboratory conditions, the protocol decoy has a unique hardware structure, and the power supply mode of the protocol decoy is changed from the power supply of an output port into the independent power supply through an independent power supply circuit module so as to meet the following requirements: measured power = load power (required result).
As shown in fig. 1, the present invention discloses an independently powered protocol spoofer supporting multiple fast charging protocols, which comprises a protocol unit, a display and control unit and a switch unit; the display and control unit is connected with the protocol unit, displays the protocol content and provides protocol mode selection; the protocol unit is electrically connected with the control unit of the charger and establishes protocol handshake; the protocol unit is connected with and controls the switch unit, the protocol unit is connected with the switch unit after protocol handshaking, and the power unit of the charger is connected with the power unit of the electronic load through the switch unit; the system also comprises a power supply unit which independently supplies power for the protocol unit and the display and control unit.
Further, as a preferred embodiment, the power supply unit has a built-in battery or is connected to an external power supply through a power interface, so as to supply power by 2 ways of battery and external power supply.
Further, as a preferred embodiment, the switching unit includes an input interface and an output interface, the switching unit is connected to the VBUS/GND pin of the charger via the input interface, and the switching unit is connected to the electronic load via the output interface.
Further, as a preferred embodiment, the input interfaces comprise Type A, Type C and Micro USB input interfaces matched with the charger, and the output interfaces comprise a V + power output interface and a V-power output interface matched with the electronic load.
Further, as a preferred embodiment, the display and control unit comprises a display module and a control module, wherein the display module comprises a display screen, and the display screen displays the prompt information and the protocol content; the control unit comprises a plurality of control keys and is used for switching the equipment and selecting the protocol mode.
Further, as a preferred embodiment, the system also comprises an accommodating shell and a bracket for supporting and placing the accommodating shell, wherein the protocol unit, the display and control unit and the switch unit are arranged in the accommodating shell.
Further, as a preferred embodiment, the protocol unit comprises a protocol sniffing module, a protocol conversion module, and a protocol signal module; the protocol sniffing module is used for detecting an accessed port and sniffing a fast-charging protocol supported by the protocol sniffing module, the protocol conversion module is used for converting the selected protocol into a control signal and sending the control signal to the corresponding protocol signal module, and the protocol signal module is used for obtaining a corresponding protocol signal through a resistance voltage division mode according to the protocol requirement so as to realize protocol handshaking.
The working principle of the present invention is explained in detail as follows:
as shown in fig. 2, when the present invention is used for testing, the charger is connected to the input end of the decoy, the output end of the decoy is connected to the electronic load, and when the decoy uses an external power supply, the external power supply is connected to the decoy. And starting the corresponding switch key, supplying power to the trap by a built-in battery or an access power supply of the trap, and monitoring whether the charger and the electronic load are accessed to the corresponding interface or not by a display and control unit of the trap. When detecting that the input interface is connected with the charger, the protocol sniffing module of the protocol unit of the decoy device detects the charging protocol of the charger and displays and prompts the non-quick charging equipment through the display and control unit. When the device supporting quick charging is detected, the protocol conversion module of the protocol unit receives and acquires the protocol signal, the protocol conversion module converts the selected protocol into the control signal and sends the control signal to the corresponding protocol signal module, and the protocol signal module obtains the corresponding protocol signal and sends a request through modes of resistance voltage division and the like according to the protocol requirement so as to realize protocol handshaking. The protocol unit controls to realize the connection of the switch unit opening switch after protocol handshaking, and the charger is connected with the power unit of the electronic load, thereby realizing the test purpose.
By adopting the technical scheme, the decoy device comprises the power supply unit, the power supply unit is provided with the built-in battery and the power supply interface, 2 modes of the battery and external power supply are adopted, and the power supply of the decoy device does not need to consume the output power of the charger. Aiming at the equipment supporting the USB port to be quickly charged, the protocol decoy has a unique hardware structure in order to carry out corresponding overall machine input and port output tests under the laboratory conditions, and the power supply mode of the protocol decoy is changed from the power supply of an output port into the independent power supply through an independent power supply circuit module so as to meet the following requirements: measured power = load power (required result). The invention can adapt to various charging protocols and more accurately detect the actually measured power of the charger.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (7)
1. An independently powered protocol spoofer supporting multiple fast-charging protocols, comprising: it comprises a protocol unit, a display and control unit and a switch unit; the display and control unit is connected with the protocol unit, displays the protocol content and provides protocol mode selection; the protocol unit is electrically connected with the control unit of the charger and establishes protocol handshake; the protocol unit is connected with and controls the switch unit, the protocol unit is connected with the switch unit after protocol handshaking, and the power unit of the charger is connected with the power unit of the electronic load through the switch unit; the decoy also comprises a power supply unit which independently supplies power for the protocol unit and the display and control unit.
2. The independently powered protocol spoofer of claim 1, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the power supply unit is provided with a built-in battery or is connected with an external power supply through a power interface so as to supply power by adopting 2 modes of the battery and the external power supply.
3. The independently powered protocol spoofer of claim 1, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the display and control unit comprises a display module and a control module, wherein the display module comprises a display screen, and the display screen displays prompt information and protocol content; the control unit comprises a plurality of control keys and is used for switching the equipment and selecting the protocol mode.
4. The independently powered protocol spoofer of claim 1, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the switch unit comprises an input interface and an output interface, the switch unit is connected with a VBUS/GND pin of the charger in a butt joint mode through the input interface, and the switch unit is connected with the electronic load in a butt joint mode through the output interface.
5. The independently powered protocol spoofer of claim 4, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the input interface comprises a Type A, a Type C and a Micro USB input interface which are matched with the charger, and the output interface comprises a V + power output interface and a V-power output interface which are matched with the electronic load.
6. The independently powered protocol spoofer of claim 1, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the device also comprises an accommodating shell and a bracket for supporting and placing the accommodating shell, wherein the protocol unit, the display and control unit and the switch unit are arranged in the accommodating shell.
7. The independently powered protocol spoofer of claim 1, wherein the spoofer is a programmable logic device that supports multiple fast-charging protocols, and wherein the programmable logic device is further configured to: the protocol unit comprises a protocol sniffing module, a protocol conversion module and a protocol signal module; the protocol sniffing module is used for detecting an accessed port and sniffing a fast-charging protocol supported by the protocol sniffing module, the protocol conversion module is used for converting the selected protocol into a control signal and sending the control signal to the corresponding protocol signal module, and the protocol signal module is used for obtaining a corresponding protocol signal through a resistance voltage division mode according to the protocol requirement so as to realize protocol handshaking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098355.9A CN112928792A (en) | 2021-01-25 | 2021-01-25 | Protocol decoy device supporting independent power supply of multiple fast charging protocols |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098355.9A CN112928792A (en) | 2021-01-25 | 2021-01-25 | Protocol decoy device supporting independent power supply of multiple fast charging protocols |
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2021
- 2021-01-25 CN CN202110098355.9A patent/CN112928792A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040249625A1 (en) * | 2003-06-04 | 2004-12-09 | Stmicroelectronics, Inc. | Multi-mode smart card emulator and related methods |
| CN206117191U (en) * | 2016-08-05 | 2017-04-19 | 江苏紫米电子技术有限公司 | Power supply system with fill suggestion and control function soon |
| CN208158154U (en) * | 2018-03-20 | 2018-11-27 | 新港海岸(北京)科技有限公司 | Fast charge line and fast charging system |
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