CN221148761U - Aging test circuit and device based on Type-C interface - Google Patents
Aging test circuit and device based on Type-C interface Download PDFInfo
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Abstract
The utility model discloses an aging test circuit and device based on a Type-C interface, comprising a main control module, a conversion module, a first data selector, a second data selector and the Type-C interface; the data end of the main control module is respectively connected with the input end of the conversion module and the input end of the first data selector; the output end of the conversion module is connected with the input end of the second data selector; the signal end of the main control module is respectively connected with the signal control ends of the first data selector and the second data selector; and the output ends of the first data selector and the second data selector are connected with the Type-C interface. Based on outdoor electric source takes Type-C interface and carries out ageing test, avoid outdoor power supply to need dismantle the problem of shell when carrying out ageing test, improve efficiency of software testing, guaranteed outdoor power supply's security.
Description
Technical Field
The utility model relates to the technical field of equipment aging test, in particular to an aging test circuit and device based on a Type-C interface.
Background
In the production and manufacturing process of the product, an aging test is an important link for verifying the performance and reliability of the product. Generally, a certain number of samples can be randomly selected from production batches for testing by common electronic products, but potential safety hazards can be generated in the use process of products with complex processes such as an outdoor mobile power supply, and the cost of logistics transportation and after-sales maintenance can be effectively reduced by performing full inspection before leaving a factory, so that the outdoor mobile power supply is required to perform a percentage of aging tests before producing and delivering the products, unlike other electronic commodities.
The main test links of production aging all need to monitor the working condition of the product when the product works, the upper computer system needs to acquire hundred pieces of equipment data when the product is aged, and because the power supply production line has more high-power devices, wireless communication is easy to generate interference, a wired communication mode is generally adopted for data acquisition. The aging test is the last detection procedure which is carried out after the assembly line is assembled into the whole machine in an offline mode, and the requirements of an outdoor power supply on dust prevention, water prevention and the like are high, so that the product has no large opening or notch on the shell, and an operator is allowed to collect data or refresh firmware in the debugging communication line or the access equipment of the burner. With the popularization and application of smart phones, almost all outdoor power supplies in the market are provided with TYPE-A TYPE and TYPE-C TYPE power supply ports, and the traditional TYPE-A TYPE and TYPE-C TYPE ports cannot meet the working requirements of power supply and aging test communication. Therefore, when the outdoor power supply is subjected to aging test, if the monitoring data or the programming firmware is required to be read, the power supply shell is required to be disassembled, so that the problems of complex testing steps and low testing efficiency are caused, and the safety of the outdoor power supply is influenced.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: the utility model provides a ageing test circuit and device based on Type-C interface avoids outdoor power supply to need dismantle the problem of shell when carrying out ageing test, improves efficiency of software testing, guarantees outdoor power supply's security.
In order to solve the technical problems, the utility model adopts the following technical scheme:
A aging test circuit based on a Type-C interface comprises a main control module, a conversion module, a first data selector, a second data selector and the Type-C interface;
The data end of the main control module is respectively connected with the input end of the conversion module and the input end of the first data selector; the output end of the conversion module is connected with the input end of the second data selector; the signal end of the main control module is respectively connected with the signal control ends of the first data selector and the second data selector; and the output ends of the first data selector and the second data selector are connected with the Type-C interface.
Further, the data end of the main control module comprises a communication data end and a data writing end;
The communication data end of the main control module is connected with the input end of the conversion module, and the communication data end of the main control module is connected with the input end of the first data selector.
Further, the signal end of the main control module comprises a communication signal end and a programming signal end;
The communication signal end of the main control module is connected with the signal control end of the second data selector, and the programming signal end of the main control module is connected with the signal control end of the first data selector.
Further, the Type-C interface comprises an SBU signal line;
And the output ends of the first data selector and the second data selector are connected with the SBU signal line of the Type-C interface.
Further, the model of the conversion module comprises SP3485 or MAX485.
Further, the device also comprises a key module; the key module is connected with the control end of the main control module.
In order to solve the technical problems, the utility model adopts the following technical scheme:
A ageing test device based on Type-C interface, including foretell ageing test circuit based on Type-C interface.
The utility model has the beneficial effects that: the data end of the main control module is connected with the conversion module, so that the serial port logic level of the main control module is converted into a serial port communication signal, and the serial port communication signal generated by the conversion module is output from the Type-C interface through the second data selector, so that the data in the main control module can be converted into the serial port communication signal to be output. Meanwhile, the data end of the main control module is also connected with a first data selector and outputs through a Type-C interface. Because the outdoor power supply is provided with the Type-C power supply port, when the circuit is used for carrying out aging test on the outdoor power supply, based on the Type-C interface, the outdoor power supply can realize serial data transmission and firmware programming of the main control module at the same time. The data selector is used as a data change-over switch of the Type-C interface, so that the device can change over a data transmission mode in a production or after-sale test loop, and can cut off production data communication after the test is finished so as to concentrate on a USB port discharging function. In this way, based on the Type-C interface that outdoor electric source took carries out ageing test, avoid outdoor power supply to need dismantle the problem of shell when carrying out ageing test, improve efficiency of software testing, guaranteed outdoor power supply's security.
Drawings
FIG. 1 is a schematic circuit diagram of an aging test circuit based on a Type-C interface according to an embodiment of the present utility model;
FIG. 2 is a debug flow chart of an aging test circuit based on a Type-C interface according to an embodiment of the present utility model;
Fig. 3 is a schematic connection diagram of an aging testing device and an upper computer based on a Type-C interface according to an embodiment of the present utility model;
Description of the reference numerals:
1. A main control module; 2. a conversion module; 3. a first data selector; 4. a second data selector; 5. Type-C interface.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the utility model provides an aging test circuit based on a Type-C interface, which comprises a main control module, a conversion module, a first data selector, a second data selector and the Type-C interface;
The data end of the main control module is respectively connected with the input end of the conversion module and the input end of the first data selector; the output end of the conversion module is connected with the input end of the second data selector; the signal end of the main control module is respectively connected with the signal control ends of the first data selector and the second data selector; and the output ends of the first data selector and the second data selector are connected with the Type-C interface.
From the above description, the beneficial effects of the utility model are as follows: the data end of the main control module is connected with the conversion module, so that the serial port logic level of the main control module is converted into a serial port communication signal, and the serial port communication signal generated by the conversion module is output from the Type-C interface through the second data selector, so that the data in the main control module can be converted into the serial port communication signal to be output. Meanwhile, the data end of the main control module is also connected with a first data selector and outputs through a Type-C interface. Because the outdoor power supply is provided with the Type-C power supply port, when the circuit is used for carrying out aging test on the outdoor power supply, based on the Type-C interface, the outdoor power supply can realize serial data transmission and firmware programming of the main control module at the same time. The Type-C interface can carry out firmware burning refreshing when the first data selector is started, and can carry out serial port communication when the second data selector is started, so that the device can switch data transmission modes in a production or after-sale test loop, and can cut off production data communication after the test is completed and concentrate on a USB port discharging function. In this way, based on the Type-C interface that outdoor electric source took carries out ageing test, avoid outdoor power supply to need dismantle the problem of shell when carrying out ageing test, improve efficiency of software testing, guaranteed outdoor power supply's security.
Further, the data end of the main control module comprises a communication data end and a data writing end;
The communication data end of the main control module is connected with the input end of the conversion module, and the programming data end of the main control module is connected with the input end of the first data selector.
As can be seen from the above description, the serial port communication and the firmware programming respectively adopt two ports of the main control module to output respectively, so as to avoid confusion of data transmission.
Further, the signal end of the main control module comprises a communication signal end and a programming signal end;
The communication signal end of the main control module is connected with the signal control end of the second data selector, and the programming signal end of the main control module is connected with the signal control end of the first data selector.
According to the description, through setting the corresponding data selector, the working mode of the Type-C interface can be directly controlled through the signal end corresponding to the main control module, so that the power supply shell is not required to be disassembled during debugging and production, the serial port line is not required to be welded manually, the aging test can be performed, and the test efficiency is effectively improved.
Further, the Type-C interface comprises an SBU signal line;
And the output ends of the first data selector and the second data selector are connected with the SBU signal line of the Type-C interface.
As can be seen from the above description, the Type-C port includes a plurality of signal lines, but not all the signal lines need to be used by each device, for example, in an outdoor power supply, the main function of the Type-C port is to charge the mobile device, and no other functions are needed, so the SBU signal line for providing an auxiliary function in the Type-C port can be used as a private function, so that the functions of adding communication and programming in the Type-C interface can be realized.
Further, the model of the conversion module comprises SP3485 or MAX485.
As can be seen from the above description, the TTL level of the master control module is converted into a and B differential signals of RS485 to enhance the anti-interference capability of the communication bus.
Further, the device also comprises a key module; the key module is connected with the control end of the main control module.
After the circuit is electrified, the key module is started, a test operator can input the test operator to the control end of the main control module through the key module by virtue of a preset combined key, so that the main control module controls the connection and disconnection of the first data selector and the second data selector according to an instruction of the operator, the equipment enters a corresponding working mode, one interface is compatible with multiple working modes, no additional interface is required, the production cost is reduced, and the test efficiency is improved.
The utility model further provides a Type-C interface-based burn-in test device, which comprises the Type-C interface-based burn-in test circuit.
From the above description, the beneficial effects of the utility model are as follows: the data end of the main control module is connected with the conversion module, so that the serial port logic level of the main control module is converted into a serial port communication signal, and the serial port communication signal generated by the conversion module is output from the Type-C interface through the second data selector, so that the data in the main control module can be converted into the serial port communication signal to be output. Meanwhile, the data end of the main control module is also connected with a first data selector and outputs through a Type-C interface. Because the outdoor power supply is provided with the Type-C power supply port, when the circuit is used for carrying out aging test on the outdoor power supply, based on the Type-C interface, the outdoor power supply can realize serial data transmission and firmware programming of the main control module at the same time. The Type-C interface can carry out firmware burning refreshing when the first data selector is started, and can carry out serial port communication when the second data selector is started, so that the device can switch data transmission modes in a production or after-sale test loop, and can cut off production data communication after the test is completed and concentrate on a USB port discharging function. In this way, based on the Type-C interface that outdoor electric source took carries out ageing test, avoid outdoor power supply to need dismantle the problem of shell when carrying out ageing test, improve efficiency of software testing, guaranteed outdoor power supply's security.
The aging test circuit and The aging test device based On The Type-C interface can be applied to occasions of aging tests of outdoor power supplies, so that The Type-C interface with an OTG (On-The-Go) function On The outdoor power supply of a user can supply power, meanwhile, monitoring data communication and firmware programming during The aging tests are supported, the problem that an outer shell needs to be disassembled when The outdoor power supply performs The aging tests is avoided, the test efficiency is improved, and The safety of The outdoor power supply is ensured, and The aging test circuit and The aging test device are described by The following specific embodiments:
referring to fig. 1 to 3, a first embodiment of the present utility model is as follows:
A Type-C interface-based aging test circuit comprises a main control module 1, a conversion module 2, a first data selector 3, a second data selector 4 and a Type-C interface 5.
In some embodiments, the circuit further includes a TYPE-a power supply port, where the TYPE-a power supply port does not have OTG function in its own general communication protocol standard, and when the product is subjected to the aging test, the product needs to be used as a monitored slave, so the USB port needs to support the Device function, but the TYPE-a power supply port on the outdoor power supply supplies power to the load Device, and only can implement the USB Host function, and cannot be used as the Device slave. Thus, the TYPE-A TYPE power supply port cannot support the burn-in test of the outdoor power supply.
The data end of the main control module 1 is respectively connected with the input end of the conversion module 2 and the input end of the first data selector 3. Specifically, the data end of the main control module 1 comprises a communication data end UART and a programmed data end SWD; the UART of the communication data end of the main control module 1 is connected with the input end of the conversion module 2, and the SWD of the programming data end of the main control module 1 is connected with the input end of the first data selector 3. In this embodiment, the communication data end UART of the main control module 1 includes uart_tx and uart_rx, and the writing data end SWD of the main control module 1 includes SWDIO and SWDCLK. The output end of the conversion module 2 comprises an RS 485A and an RS 485B, and the conversion module 2 converts TTL level of the UART data end of the main control module into A and B differential signals of the RS485 so as to strengthen the anti-interference capability of the communication bus.
In an alternative embodiment, the model of the conversion module 2 includes SP3485 or MAX485.
The signal end of the main control module 1 is respectively connected with the signal control ends of the first data selector 3 and the second data selector 4. Specifically, the signal end of the main control module 1 comprises a communication signal end comm_en and a programming signal end swd_en; the communication signal end comm_en of the main control module 1 is connected to the signal control end of the second data selector 4, and the programming signal end swd_en of the main control module 1 is connected to the signal control end of the first data selector 3. In this embodiment, the communication signal end of the master control module 1 includes comm_en, and the write signal end of the master control module 1 includes swd_en. The models of the first data selector 3 and the second data selector 4 are 74AHCT2G126DP, wherein the input ends of the first data selector 3 and the second data selector 4 are 1A and 2A; the output ends of the first data selector 3 and the second data selector 4 are 1Y and 2Y; the signal control ends of the first data selector 3 and the second data selector 4 are 10E; the power supply ends of the first data selector 3 and the second data selector 4 are VCC.
In this embodiment, the circuit further includes a first resistor having a resistance value of 1kΩ, a second resistor having a resistance value of 220 Ω, and a third resistor having a resistance value of 20Ω. The output end of the conversion module 2 is connected with one end of a first resistor R1, the other end of the first resistor R1 is connected with the input end of a second data selector 4, the output end of the second data selector 4 is connected with one end of a second resistor R2, and the other end of the second resistor R2 is connected with an SBU signal line. The programming data end SWD of the main control module 1 is connected with one end of a first resistor R3, the other end of the first resistor R3 is connected with the input end of a first data selector 3, the output end of the first data selector 3 is connected with one end of a third resistor R4, and the other end of the third resistor R4 is connected with an SBU signal line. The communication signal end comm_en of the main control module 1 is connected with one end of the second resistor R5, and the other end of the second resistor R5 is connected with the signal control end of the second data selector 4. The programming signal end SWD_EN of the main control module 1 is connected with one end of a second resistor R6, and the other end of the second resistor R6 is connected with the signal control end of the first data selector 3. In this way the first data selector 3 and the second data selector 4 are protected.
The output end of the conversion module 2 is connected with the input end of the second data selector 4; the output ends of the first data selector 3 and the second data selector 4 are both connected with a Type-C interface 5. Specifically, the Type-C interface 5 includes an SBU signal line; the output ends of the first data selector 3 and the second data selector 4 are both connected with SBU signal lines of the Type-C interface 5.
It should be noted that, the standard Type-C interface has 24 pins, wherein the main pins include: VBUS provides power, GND ground, DP and DN for data transfer, CC1 and CC2 for identifying the type of device inserted and determining the power switching protocol, SBU1 and SBU2 for providing auxiliary functions such as supporting DisplayPort (a high definition digital display interface standard). The Type-C interface is mainly applied to functions of data transmission, mobile device charging, audio and video output, rapid data storage, peripheral device connection and the like. Not every device will use all of the pins to the Type-C interface, but only a portion of the pins may be used to meet the desired functionality, depending on the needs and specifications of the particular device. Aiming at the outdoor mobile power supply, the main function of the Type-C interface is to charge the mobile equipment without other functions, so that the Type-C interface is used as a download port of the outdoor mobile power supply for serial port communication and SWD (for firmware refreshing of a singlechip), and SBU1 and SBU2 pins in the Type-C interface are used as private functions, which is equivalent to the functions of adding communication and programming in the Type-C interface. Because the SBU1 and the SBU2 can be used freely, the communication or programming adopts a two-wire scheme as much as possible to meet the requirements. In this embodiment, the outdoor mobile power supply realizes communication and firmware programming through the RS485 serial port and the SWD, so as to complete the production aging related process.
In an alternative embodiment, the circuit further comprises a key module; the key module is connected with the control end of the main control module.
The model limitation in this embodiment is only an example of an alternative implementation, and other devices of corresponding models that can achieve the same effect may be used, which is not described again.
The working principle of the circuit is as follows:
As shown in fig. 2, after the device to be tested starts to be powered on, the MCU main control module is also powered on, at this time, the device starts to initialize the corresponding UART communication, so as to enter a user mode and start the key module to perform key detection, at this time, the tester can make the device perform a corresponding working mode through a predetermined combination key, and under the corresponding working mode, the main control module controls the communication signal terminal comm_en and the programming signal terminal swd_en to instruct the Type-C interface to perform transmission of specified data according to the instruction of the key module: for example, when the tester control device enters the burn-in test mode, the master control module will pull down the communication signal terminal comm_en and the write signal terminal swd_en at the same time, and the two data selectors are reset, and then pull up the corresponding communication signal terminal comm_en for the burn-in test. When the tester controls the equipment to perform the firmware programming mode, the master control module simultaneously pulls down the communication signal terminal comm_en and the programming signal terminal swd_en, and then pulls up the corresponding programming signal terminal swd_en. After the test is finished, the tester uses the combination key or directly restarts the device to exit the factory mode so as to restore the user mode, and at the moment, the main control module also needs to pull down the communication signal end COMM_EN and the writing signal end SWD_EN at the same time to reset the two data selectors.
Based on the circuit, batch aging test of the equipment can be realized, as shown in fig. 3, type-C interfaces of N pieces of equipment in RS485 serial port communication can be commonly hung on the same RS485 bus, a PC upper computer polls and issues a command to acquire working conditions of each piece of equipment, and finally after a certain test period, the upper computer can export aging data to generate a report form, so that batch test is completed.
The second embodiment of the utility model is as follows:
A Type-C interface-based aging test device comprises the Type-C interface-based aging test circuit in the first embodiment. In this embodiment, the aging test device may be an outdoor mobile power supply.
In summary, according to the aging test method and device based on the Type-C interface provided by the utility model, the data end of the main control module is connected with the conversion module, so that the serial port logic level of the main control module is converted into the serial port communication signal, and then the serial port communication signal generated by the conversion module is output from the Type-C interface through the second data selector, so that the data in the main control module can be converted into the serial port communication signal for output. Meanwhile, the data end of the main control module is also connected with a first data selector and outputs through a Type-C interface. Because the outdoor power supply is provided with the Type-C power supply port, when the circuit is used for carrying out aging test on the outdoor power supply, based on the Type-C interface, the outdoor power supply can realize serial data transmission and firmware programming of the main control module at the same time. The Type-C interface can carry out firmware burning refreshing when the first data selector is started, and can carry out serial communication when the second data selector is started, so that a user can switch data transmission modes in time when testing is needed, and charging of electronic equipment can be supported when testing is not needed. In this way, only two double-circuit data selectors are added on an outdoor power supply main board and software logic is updated, so that the outdoor power supply main board can be subjected to aging test based on the Type-C interface of the outdoor power supply main board, the outdoor power supply main board can support rapid charging protocol charging, can also be used as a slave to respond to an upper computer monitoring command, the problem that the outdoor power supply needs to disassemble a shell when performing aging test is avoided, the test cost is reduced, the test efficiency is improved, and the safety of the outdoor power supply is ensured.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (7)
1. The aging test circuit based on the Type-C interface is characterized by comprising a main control module, a conversion module, a first data selector, a second data selector and the Type-C interface;
The data end of the main control module is respectively connected with the input end of the conversion module and the input end of the first data selector; the output end of the conversion module is connected with the input end of the second data selector; the signal end of the main control module is respectively connected with the signal control ends of the first data selector and the second data selector; and the output ends of the first data selector and the second data selector are connected with the Type-C interface.
2. The aging test circuit based on the Type-C interface of claim 1, wherein the data terminal of the main control module comprises a communication data terminal and a programming data terminal;
The communication data end of the main control module is connected with the input end of the conversion module, and the programming data end of the main control module is connected with the input end of the first data selector.
3. The aging test circuit based on the Type-C interface of claim 1, wherein the signal end of the main control module comprises a communication signal end and a programming signal end;
The communication signal end of the main control module is connected with the signal control end of the second data selector, and the programming signal end of the main control module is connected with the signal control end of the first data selector.
4. The Type-C interface based burn-in circuit of claim 1, wherein the Type-C interface comprises an SBU signal line;
And the output ends of the first data selector and the second data selector are connected with the SBU signal line of the Type-C interface.
5. The Type-C interface based burn-in circuit of claim 1, wherein the model of the conversion module comprises SP3485 or MAX485.
6. The aging test circuit based on a Type-C interface of claim 1, further comprising a key module; the key module is connected with the control end of the main control module.
7. A Type-C interface based burn-in device, comprising a Type-C interface based burn-in circuit as claimed in any one of claims 1-6.
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| CN202323160138.1U CN221148761U (en) | 2023-11-22 | 2023-11-22 | Aging test circuit and device based on Type-C interface |
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| CN202323160138.1U CN221148761U (en) | 2023-11-22 | 2023-11-22 | Aging test circuit and device based on Type-C interface |
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