Communication product testing device

Abstract

The utility model discloses a communication product testing device. The communication product testing device comprises an input switch matrix, an output switch matrix, at least two intermediate connecting devices and a control chip, wherein the input switch matrix and the output switch matrix are arranged at the two ends of each intermediate connecting device and the control chip; the second ends of the input switches in the input switch matrix are respectively connected with the input end of the intermediate connecting device, and the second ends of the output switches in the output switch matrix are respectively connected with the output end of the intermediate connecting device; a second end of each input switch and a second end of each output switch are respectively connected with an input port and an output port of the control chip and are used for receiving a switch control signal of the control chip and responding to the switch control signal to be switched on or switched off; wherein the input switch, the intermediate connecting device and the output switch which are switched on in response to the switch control signal form a loop for charging or data transmission testing. Therefore, multiple types of tests can be realized on the basis of the same test device without plugging, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of communication technologies, and in particular to a communication product testing device. Background Art

[0002] In the application or function testing of communication or consumer electronic products, it is necessary to test aspects such as the charging power, data transmission performance, and port matching of communication products. During the testing process, the testing of different products to be tested is usually achieved by manual operation and manual connection of testers. In the process of testing using the above method, if multiple types of adaptability tests need to be performed on the product, it is necessary for the staff to plug and unplug the product, remove the cables, and replace the equipment multiple times, which will cause serious loss of man-hours and product damage, and at the same time seriously affect the testing efficiency. Moreover, there may be problems such as incorrect plugging or omission in the replacement of test types by manual operation, and inefficient manual operation is also difficult to meet the increasing requirements for the testing speed and types of communication products.

[0003] Even though existing communication product testing devices have tried to integrate various types of test interfaces, they still have problems such as a single testing method, it is difficult to distinguish the location of faults and anomalies in the overly integrated interfaces, and they can only test specific objects to be measured. For different testing requirements, it is necessary to re-customize and adjust the device, increasing the testing cost. Summary of the Utility Model

[0004] The utility model provides a communication product testing device. By splitting the communication product testing device into three mutually integrated and replaceably connectable parts, the integration of multiple test types and the distinction of access methods for different test objects to be measured are realized, which is convenient for the replacement of access devices and the fault location during the testing process, and improves the testing efficiency and accuracy.

[0005] An embodiment of the utility model provides a communication product testing device, including: an input switch matrix, an output switch matrix, at least two intermediate connection devices, and a control chip; wherein, the input switch matrix and the output switch matrix are respectively arranged at both ends of each intermediate connection device and the control chip;

[0006] The second ends of the input switches in the input switch matrix are respectively connected to the input ends of the intermediate connection devices, and the second ends of the output switches in the output switch matrix are respectively connected to the output ends of the intermediate connection devices;

[0007] The second ends of each input switch and the second ends of each output switch are respectively connected to the input / output ports of the control chip, for receiving the switch control signals of the control chip and conducting or disconnecting in response to the switch control signals;

[0008] Among them, an input switch, an intermediate connection device, and an output switch that are turned on in response to a switch control signal form a loop for charging or data transmission testing; the control chip is further configured to acquire voltage and current signals on the loop.

[0009] Optionally, the first ends of the input switches are respectively connected to corresponding external input ports; the first ends of the output switches are respectively connected to corresponding communication products;

[0010] Among them, each external input port is used to input different voltage and current signals or data signals.

[0011] Optionally, the communication product testing device further includes: an analog-to-digital converter;

[0012] The analog-to-digital converter is connected to the loop and connected to the analog-to-digital conversion interface of the control chip, and is configured to acquire voltage or current signals on the loop, and convert the voltage or current signals into digital signals and send them to the control chip through the analog-to-digital conversion interface.

[0013] Optionally, the communication product testing device further includes: a universal asynchronous receiver / transmitter;

[0014] The universal asynchronous receiver / transmitter is respectively connected to the host computer and the universal asynchronous serial port of the control chip, and is configured to send the received host computer control instructions to the control chip through the universal asynchronous serial port, so that the control chip generates corresponding switch control signals;

[0015] The universal asynchronous receiver / transmitter is further configured to send the digital signals received by the control chip to the host computer.

[0016] Optionally, the communication product testing device further includes: a power supply module, and the power supply module is used to supply power to the control chip and the analog-to-digital converter.

[0017] Optionally, the power supply module includes: a DC buck circuit, a first low dropout regulator, and a second low dropout regulator;

[0018] The DC buck circuit is respectively connected to the first low dropout regulator and the second low dropout regulator, and is configured to convert the first input high voltage into a first output low voltage and respectively input it to the first low dropout regulator and the second low dropout regulator;

[0019] The first low dropout regulator is connected to the power supply port of the control chip, and is configured to convert the first output low voltage into a second output low voltage to supply power to the control chip;

[0020] The second low dropout regulator is respectively connected to the reference voltage port of the control chip and the analog-to-digital converter, and is configured to convert the first output low voltage into a third output low voltage to supply power to the analog-to-digital converter, and input the third output low voltage as a reference voltage to the control chip.

[0021] Optionally, the communication product testing device further includes: a same-end testing switch corresponding to each intermediate connection device;

[0022] The first end of the same-end testing switch is respectively connected to the input end of the intermediate connection device and the input / output port of the control chip, and the second end of the same-end testing switch is connected to the second end of the output switch to be tested, for receiving the same-end testing control signal of the control chip and conducting or disconnecting in response to the same-end testing control signal;

[0023] Wherein, the same-end testing switch, the intermediate connection device and the two output switches that are conducting in response to the same-end testing control signal form a loop for testing charging or data transmission between communication products.

[0024] Optionally, the intermediate connection device is a replaceable device under test when testing is required and a fixed path when testing is not required.

[0025] An embodiment of the present invention provides a communication product testing device, including: an input switch matrix, an output switch matrix, at least two intermediate connection devices and a control chip; wherein, the input switch matrix and the output switch matrix are respectively arranged at both ends of each intermediate connection device and the control chip; the second ends of the input switches in the input switch matrix are respectively connected to the input ends of the intermediate connection devices, and the second ends of the output switches in the output switch matrix are respectively connected to the output ends of the intermediate connection devices; the second ends of each input switch and the second ends of each output switch are respectively connected to the input / output port of the control chip, for receiving the switch control signal of the control chip and conducting or disconnecting in response to the switch control signal; wherein, the input switch, the intermediate connection device and the output switch that are conducting in response to the switch control signal form a loop for charging or data transmission testing; the control chip is further used to obtain the voltage and current signals on the loop. By adopting the above technical solution, the input switch matrix and the output switch matrix in the communication product testing device are respectively arranged on both sides of the intermediate connection device, that is, the communication product testing device can be respectively connected to the object under test through the input switch matrix, the output switch matrix and the intermediate connection device, and the opening and closing states of the switches in the input switch matrix and the output switch matrix are adjusted through the control chip to form paths for realizing different test purposes, so that multiple types of tests can be realized based on the same testing device without unplugging. And because the input switch matrix and the output switch matrix are arranged on both sides, the communication products connected to the input switch and the output switch can be plugged and unplugged without affecting each other, and when an abnormality is found, since the input switch matrix and the output switch matrix are separately arranged, the source of the fault can be more quickly and clearly identified and the fault can be processed in time, improving the test efficiency and accuracy.

[0026] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Structural schematic diagram of a communication product testing device provided for an embodiment of the present utility model;

[0029] Figure 2 Structural schematic diagram of another communication product testing device provided for an embodiment of the present utility model;

[0030] Figure 3 Structural schematic diagram of another communication product testing device provided for an embodiment of the present utility model;

[0031] Figure 4 Structural schematic diagram of another communication product testing device provided for an embodiment of the present utility model;

[0032] Figure 5 Structural schematic diagram of another communication product testing device provided for an embodiment of the present utility model;

[0033] Figure 6 Structural schematic diagram of another communication product testing device provided for an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] In one embodiment, Figure 1 FIG. is a schematic structural diagram of a communication product testing device provided by an embodiment of the present utility model. This embodiment is applicable to the situation where a communication product can be processed for various testing requirements through a testing device without multiple pluggings and unplugging. As Figure 1 shown, the communication product testing device 1 includes: an input switch matrix 11, an output switch matrix 12, at least two intermediate connection devices 13, and a control chip 14.

[0037] Among them, the input switch matrix 11 and the output switch matrix 12 are respectively arranged at both ends of each intermediate connection device 13 and the control chip 14.

[0038] The second ends 1102 of the input switches 110 in the input switch matrix 11 are respectively connected to the input ends 131 of the intermediate connection devices 13, and the second ends 1202 of the output switches 120 in the output switch matrix 12 are respectively connected to the output ends 132 of the intermediate connection devices 13;

[0039] The second ends 1102 of the input switches 110 and the second ends 1202 of the output switches 120 are respectively connected to the input / output ports 141 of the control chip 14, for receiving the switch control signals of the control chip 14 and conducting or disconnecting in response to the switch control signals;

[0040] Among them, the input switch 110, the intermediate connection device 13, and the output switch 120 that are conducted in response to the switch control signal form a loop for charging or data transmission testing; the control chip 14 is further used to acquire the voltage and current signals on the loop.

[0041] In this embodiment, the input switch matrix 11 can be specifically understood as a set of switches in different paths of the communication product testing device 1 for receiving voltage, current, or data signals given by different external sources. Exemplarily, each input switch 110 in the input switch matrix 11 can be a relay, that is, the input switch matrix 11 can be an input relay group, or can also be other elements that play a switching role. The embodiments of the present invention do not limit this. The output switch matrix 12 can be specifically understood as a set of switches in different paths of the communication product testing device 1 for outputting voltage, current, or data signals to the outside. Exemplarily, each output switch 120 in the output switch matrix 12 can be a relay, that is, the output switch matrix 12 can be an output relay group, or can also be other elements that play a switching role. The embodiments of the present invention do not limit this.

[0042] In this embodiment, the intermediate connection device 13 can be specifically understood as an element disposed between the input switch matrix 11 and the output switch matrix 12 in the communication product testing device 1, which is used to form a path between the input switch matrix 11 and the output switch matrix 12. Exemplarily, the intermediate connection device 13 can be a charging cable of the communication product, or a data cable that can be used for data communication between communication products. The embodiments of the present invention do not limit this. Optionally, the intermediate connection device 13 can be either a replaceable device under test that needs to be tested, or can exist as a fixed path with a known transmission capacity during the testing process of the device under test corresponding to the access path of the input switch matrix 11 or the output switch matrix 12.

[0043] In this embodiment, the control chip 14 can be specifically understood as a microcomputer in the communication product testing device 1 for external communication, control signal generation, and simple data processing. It can be used to receive external test information, generate test control signals corresponding to the external test information to control the communication product testing device 1 to perform corresponding tests, and acquire, simply process the signals generated during the testing process, and feedback them to the corresponding upper computer. The switch control signal can be specifically understood as a signal generated by the control chip 14 for controlling the opening and closing of each input switch 110 in the input switch matrix 11 and each output switch 120 in the output switch matrix 12.

[0044] Specifically, the testable part of the communication product test device 1 can be roughly composed of three parts: an input switch matrix 11, an intermediate connection device 13, and an output switch matrix 12. The input switch matrix 11 and the output switch matrix 12 are respectively arranged at both ends of the intermediate connection device 13. The control chip 14 is used to generate switch control signals and is respectively connected to the input switch matrix 11 and the output switch matrix 12 to send the corresponding switch control signals to the input switch 110 and the output switch 120 to be controlled, so that the corresponding input switch 110 and output switch 120 are closed and conducted, and a complete loop for charging or data transmission testing can be formed among the conducted input switch 110, the intermediate connection device 13, and the output switch 120. The specific connection method can be that the second ends 1102 of the input switches 110 in the input switch matrix 11 are respectively connected to the input ends 131 of the intermediate connection devices 13 and are simultaneously connected to the input / output port 141 of the control chip 14; the second ends 1202 of the output switches 120 in the output switch matrix 12 are respectively connected to the output ends 132 of the intermediate connection devices 13 and are simultaneously connected to the input / output port 141 of the control chip 14. When testing an object to be tested connected to the communication product test device 1, the control chip 14 will receive the test information given by the host computer, generate corresponding switch control signals according to the test information, and send them to the corresponding input switch 110 in the input switch matrix 11 and the corresponding output switch 120 in the output switch matrix 12, so that the path where the conducted input switch 110 is located, the path where the conducted output switch 120 is located, and the intermediate connection device 13 together form a loop for charging or data transmission testing, and the control chip 14 will collect and process the voltage and current signals in the above loop and feedback them to the host computer to complete the communication product test corresponding to the current test information.

[0045] An embodiment of the present utility model provides a communication product testing device, including: an input switch matrix, an output switch matrix, at least two intermediate connection devices, and a control chip; wherein, the input switch matrix and the output switch matrix are respectively arranged at both ends of each intermediate connection device and the control chip; the second ends of the input switches in the input switch matrix are respectively connected to the input ends of the intermediate connection devices, and the second ends of the output switches in the output switch matrix are respectively connected to the output ends of the intermediate connection devices; the second ends of each input switch and the second ends of each output switch are respectively connected to the input / output ports of the control chip, for receiving the switch control signals of the control chip and conducting or disconnecting in response to the switch control signals; wherein, the input switch, the intermediate connection device, and the output switch that are conducting in response to the switch control signal form a loop for charging or data transmission testing; the control chip is further used to obtain the voltage and current signals on the loop. By adopting the above technical solution, the input switch matrix and the output switch matrix in the communication product testing device are respectively arranged on both sides of the intermediate connection device, that is, the communication product testing device can be connected to the object under test through the input switch matrix, the output switch matrix, and the intermediate connection device respectively. By adjusting the opening and closing states of the switches in the input switch matrix and the output switch matrix through the control chip, a path for realizing different testing purposes is formed, so that multiple types of tests can be realized based on the same testing device without unplugging. And because the input switch matrix and the output switch matrix are arranged on both sides, the communication products connected to the input switch and the output switch can be plugged and unplugged without affecting each other. And when an abnormality is found, because the input switch matrix and the output switch matrix are separately arranged, the source of the fault can be more quickly and clearly identified, and the fault can be processed in time, improving the testing efficiency and accuracy.

[0046] Optionally, Figure 2 It is a structural schematic diagram of another communication product testing device provided by the embodiment of the present utility model. The technical solution of the present utility model is further refined on the basis of the above optional technical solutions, and the connection relationship between the input switch matrix 11 and the output switch matrix 12 is further refined. As Figure 2 shown, the first ends 1101 of each input switch 110 are respectively connected to the corresponding external input ports 21, and the first ends 1201 of each output switch 120 are respectively connected to the corresponding communication product 22; wherein, each external input port 21 is used to input different voltage and current signals or data signals.

[0047] Exemplarily, the external input port 21 can be a USB port, which can not only input data signals but also input voltage and current signals; the external input port 21 can also be a power port, which can only input power supply signals with different voltages and currents. The communication product 22 can be a device that can be used to execute communication tasks or needs to perform data transmission or communication with other communication devices, such as a laptop computer and a keyboard, etc., and the embodiments of the present invention do not limit this.

[0048] In one embodiment, Figure 3 is a schematic structural diagram of another communication product testing device provided by the embodiments of the present invention. The technical solution of the embodiments of the present invention is further optimized on the basis of the above-mentioned optional technical solutions. For example, Figure 3 as shown, the communication product testing device 1 further includes an analog-to-digital converter 15.

[0049] The analog-to-digital converter 15 is connected to the circuit and connected to the analog-to-digital conversion interface 142 of the control chip 14, and is used to obtain the voltage or current signal on the circuit and convert the voltage or current signal into a digital signal and send it to the control chip 14 through the analog-to-digital conversion interface 142.

[0050] In this embodiment, the analog-to-digital converter 15 (Analog to Digital Converter, ADC) can be specifically understood as an electronic component used to convert the collected analog signal into a digital signal.

[0051] Optionally, an access node can be set between the second end 1102 of each input switch 110 and the input end 131 of the intermediate connection device 13, and the analog-to-digital converter 15 is connected to the input switch 110, the intermediate connection device 13 and the output switch 120 that are turned on in response to the switch control signal through this access node to form a loop for charging or data transmission testing. When testing through this loop, the analog-to-digital converter 15 collects the voltage or current signal of the analog signal type in the loop, converts the voltage or current signal into a digital signal type, and then sends it to the control chip 14 through the analog-to-digital conversion interface 142 in the control chip 14, so that the control chip 14 can directly process the voltage or current signal of the digital signal type to obtain the test result or feedback the processed voltage or current signal to the host computer to obtain the final test result.

[0052] In one embodiment, Figure 4 is a schematic structural diagram of another communication product testing device provided by the embodiments of the present invention. The technical solution of the embodiments of the present invention is further optimized on the basis of the above-mentioned optional technical solutions. For example, Figure 4 as shown, the communication product testing device 1 further includes a universal asynchronous receiver / transmitter 16.

[0053] The Universal Asynchronous Receiver / Transmitter 16 is respectively connected to the host computer 23 and the Universal Asynchronous Serial Port 143 of the control chip 14, and is used to send the received control instructions of the host computer to the control chip 14 through the Universal Asynchronous Serial Port 143, so that the control chip 14 generates corresponding switch control signals; the Universal Asynchronous Receiver / Transmitter 16 is also used to send the digital signals received by the control chip 14 to the host computer 23.

[0054] In this embodiment, the Universal Asynchronous Receiver / Transmitter 16 (Universal Asynchronous Receiver / Transmitter, UART) can be specifically understood as a general serial data bus for two-way asynchronous communication. The Universal Asynchronous Serial Port 143 can be specifically understood as a port corresponding to the Universal Asynchronous Receiver / Transmitter 16 in the control chip 14 and used for data communication with the Universal Asynchronous Receiver / Transmitter 16. The host computer 23 can be specifically understood as a computer directly issuing operation commands and controlled by test staff during the test process of communication products.

[0055] Specifically, the Universal Asynchronous Receiver / Transmitter 16 is arranged between the host computer 23 and the control chip 14 and is connected to the control chip 14 through the Universal Asynchronous Serial Port 143. When it is necessary to test the access communication, the host computer 23 will send corresponding test information to the Universal Asynchronous Receiver / Transmitter 16, and the Universal Asynchronous Receiver / Transmitter 16 will transmit the test information into the control chip 14 through the Universal Asynchronous Serial Port 143, so that the control chip 14 can generate corresponding switch control signals according to the test information and send them to the input switch matrix 11 and the output switch matrix 12 through the input / output port 141 to correspondingly control the corresponding input switch 110 and output switch 120 to be closed and conducted, forming a loop corresponding to the test information for testing.

[0056] In one embodiment, Figure 5 is a schematic structural diagram of another communication product testing device provided by an embodiment of the present invention. The technical solution of the embodiment of the present invention is further optimized on the basis of the above optional technical solutions, as Figure 5 shown, the communication product testing device 1 further includes a power supply module 17.

[0057] The power supply module 17 is used to supply power to the control chip 14 and the analog-to-digital converter 15.

[0058] Among them, the power supply module 17 includes: a DC step-down circuit 171, a first low-dropout linear regulator 172, and a second low-dropout linear regulator 173.

[0059] The DC step-down circuit 171 is respectively connected to the first low-dropout pre-regulator 172 and the second low-dropout pre-regulator 173, and is used to convert the first input high voltage into a first output low voltage and input it to the first low-dropout pre-regulator 172 and the second low-dropout pre-regulator 173 respectively;

[0060] The first low-dropout pre-regulator 172 is connected to the power supply port 144 of the control chip 14, and is used to convert the first output low voltage into a second output low voltage to supply power to the control chip 14;

[0061] The second low-dropout pre-regulator 173 is respectively connected to the reference voltage port 145 of the control chip 14 and the analog-to-digital converter 15, and is used to convert the first output low voltage into a third output low voltage to supply power to the analog-to-digital converter 15, and input the third output low voltage as a reference voltage to the control chip 14.

[0062] In this embodiment, the DC step-down circuit 171 can be specifically understood as a power module 17 that converts the externally input high voltage into a low voltage that can be converted by a low-dropout linear regulator (LDO). Exemplarily, the DC step-down circuit 171 can be a Buck circuit, and the embodiment of the present invention does not limit this. The first low-dropout pre-regulator 172 and the second low-dropout pre-regulator 173 can be specifically understood as LDO circuits that respectively convert the voltage output by the DC step-down circuit 171 into a voltage suitable for the power supply requirements of the control chip 14 and the analog-to-digital converter 15.

[0063] Specifically, since different components in the communication product testing device 1 require different supply voltages during operation, and the external power supply is often high-voltage direct current or high-voltage alternating current, in order to enable the communication product testing device 1 to operate normally, a power supply module 17 composed of a DC buck circuit 171, a first low-dropout linear regulator 172, and a second low-dropout linear regulator 173 is provided in the communication product testing device 1 to convert the first input high voltage provided externally into the voltages required by each component in the communication product testing device 1 for power supply. The DC buck circuit 171 first converts the first input high voltage input thereto into a first output low voltage that can be processed by the first low-dropout linear regulator 172 and the second low-dropout linear regulator 173, and uses the first output low voltage as the input voltages of the first low-dropout linear regulator 172 and the second low-dropout linear regulator 173 respectively. The first low-dropout linear regulator 172 performs a buck processing on the first output low voltage to obtain a second output low voltage required for powering the control chip 14, and supplies power to the control chip 14 through the power supply port 144 of the control chip 14 with the second output low voltage. Since the control chip 14 needs to determine the reference voltage of the analog-to-digital converter 15 itself when acquiring the digital signal transmitted by the analog-to-digital converter 15, the first output low voltage can be processed by the second low-dropout linear regulator 173 to obtain a third output low voltage for powering the analog-to-digital converter 15, and the analog-to-digital converter 15 is powered by the third output low voltage. At the same time, the third output low voltage is input into the control chip 14 through the reference voltage port 145 of the control chip 14, so that the control chip 14 can determine the reference voltage of the analog-to-digital converter 15.

[0064] Exemplarily, the first input high voltage can be a DC voltage of 24V. After being processed by the DC buck circuit 171, a first output low voltage of 5V can be obtained. After being further processed by the first low-dropout linear regulator 172, a second output low voltage of 3.3V can be obtained. After being processed by the second low-dropout linear regulator 173, a third output low voltage of 2.5V can be obtained.

[0065] In one embodiment, Figure 6 is a schematic structural diagram of another communication product testing device provided by an embodiment of the present invention. The technical solution of the embodiment of the present invention is further optimized on the basis of the above-mentioned optional technical solutions. As Figure 6 shown, the communication product testing device 1 further includes a same-end test switch 18 correspondingly arranged for each intermediate connection device 13.

[0066] The first end 181 of the same-end test switch 18 is respectively connected to the input end 131 of the intermediate connection device 13 and the input / output port 141 of the control chip 14. The second end 182 of the same-end test switch 18 is connected to the second end 1212 of the output switch 121 to be tested, and is used to receive the same-end test control signal of the control chip and conduct or disconnect in response to the same-end test control signal.

[0067] Among them, when the same-end test switch 18, the intermediate connection device 13 and the two output switches 120 that are conducted in response to the same-end test control signal are conducted, a loop for testing charging or data transmission between communication products is formed.

[0068] It can be understood that the output switch 121 to be tested is one of the output switches 120 in the output switch matrix 12. In the embodiment of the present invention, it is only marked as the output switch 121 to be tested to indicate that the corresponding communication device needs to be subjected to the same-end test. Similarly, it can be considered that the second end 1202 of each output switch 120 can be respectively connected to the second end 182 of each same-end test switch 18. Figure 6 Only the connection between the second end 1212 of the output switch 121 to be tested and the second end 182 of the same-end test switch 18 is taken as an example.

[0069] In this embodiment, the same-end test can be specifically understood as a test of charging or data transmission between two communication terminals that are both communication terminals.

[0070] Specifically, in the communication product test device 1, there is also a same-end test switch 18 corresponding to each intermediate connection device 13 for controlling the same-end test. The first end 181 of the same-end test switch 18 is respectively connected to the input end 131 of its corresponding intermediate connection device 13 and the input / output port 141 of the control chip 14. The second end 182 of the same-end test switch 18 is connected to the second end 1202 of each output switch 120 in the output switch matrix 12. When it is necessary to perform the same-end test between two communication products through the communication product test device 1, one of the communication devices can be selected, and the output switch 120 corresponding to the communication device is determined as the output switch 121 to be tested. Then, when the same-end test control signal generated by the control chip 14 is respectively sent to the same-end test switch 18, the output switch 121 to be tested and the output switch 120 that need to participate in the current same-end test, the above switches are respectively controlled to conduct, and a loop including two test communication products and the intermediate connection device 13 is constructed, and the test of charging or data transmission is performed through this loop.

[0071] A communication product testing device provided by an embodiment of the present utility model integrates the same-end testing function and the different-end testing function into one product through an independently provided same-end testing switch, enabling different testing purposes to be achieved without excessive plugging and unplugging of the product to be tested. Moreover, since the input switch matrix and the output switch matrix are separately arranged on both sides, the communication products connected to the input switch and the output switch can be plugged and unplugged without affecting each other. And when an abnormality is detected, because the input switch matrix and the output switch matrix are separately arranged, the source of the fault can be more quickly and clearly identified, and the fault can be processed in a timely manner, improving the testing efficiency and accuracy.

[0072] The above specific implementation manners do not constitute a limitation on the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A communication product testing device, characterized in that: include: An input switch matrix, an output switch matrix, at least two intermediate connection devices and a control chip; wherein the input switch matrix and the output switch matrix are respectively arranged at both ends of each of the intermediate connection devices and the control chip; The second end of each input switch in the input switch matrix is ​​connected to the input end of the intermediate connecting device, and the second end of each output switch in the output switch matrix is ​​connected to the output end of the intermediate connecting device; The second end of each input switch and the second end of each output switch are respectively connected to the input and output ports of the control chip, and are used to receive the switch control signal of the control chip, and are turned on or off in response to the switch control signal; Among them, the input switch, the intermediate connecting device and the output switch that are turned on in response to the switch control signal form a loop for charging or data transmission testing; the control chip is also used to obtain voltage and current signals on the loop.

2. The communication product testing device according to claim 1, characterized in that: The first end of each input switch is connected to the corresponding external input port; the first end of each output switch is connected to the corresponding communication product; Wherein, each of the external input ports is used to input different voltage and current signals or data signals.

3. The communication product testing device according to claim 1, characterized in that: Also includes: Analog-to-digital converters; The analog-to-digital converter is connected to the loop and to the analog-to-digital conversion interface of the control chip to obtain the voltage or current signal on the loop and convert the voltage or current signal into a digital signal and send it to the control chip through the analog-to-digital conversion interface.

4. The communication product testing device according to claim 3, characterized in that: Also includes: Universal Asynchronous Receiver / Transmitter; The universal asynchronous receiver / transmitter is connected to the host computer and the universal asynchronous serial port of the control chip respectively, and is used to send the received host computer control instruction to the control chip through the universal asynchronous serial port, so that the control chip generates a corresponding switch control signal; The universal asynchronous receiver / transmitter is also used to send the digital signal received by the control chip to the host computer.

5. The communication product testing device according to claim 3, characterized in that: Also includes: A power supply module is used to supply power to the control chip and the analog-to-digital converter.

6. The communication product testing device according to claim 5, characterized in that: The power module comprises: a DC step-down circuit, a first low-voltage difference first regulator and a second low-voltage difference first regulator; The DC step-down circuit is connected to the first low-voltage difference first regulator and the second low-voltage difference first regulator respectively, and is used to convert the first input high voltage into a first output low voltage and input it to the first low-voltage difference first regulator and the second low-voltage difference first regulator respectively; The first low voltage difference lead regulator is connected to the power port of the control chip, and is used for converting the first output low voltage into a second output low voltage to power the control chip; The second low voltage difference lead regulator is respectively connected to the reference voltage port of the control chip and the analog-to-digital converter, and is used to convert the first output low voltage into a third output low voltage to power the analog-to-digital converter, and input the third output low voltage as a reference voltage to the control chip.

7. The communication product testing device according to any one of claims 1 to 6, characterized in that: Also includes: A same-end test switch provided corresponding to each of the intermediate connecting devices; The first end of the same-end test switch is connected to the input end of the intermediate connection device and the input and output ports of the control chip respectively, and the second end of the same-end test switch is connected to the second end of the output switch to be tested, for receiving the same-end test control signal of the control chip, and being turned on or off in response to the same-end test control signal; Among them, the same-end test switch turned on in response to the same-end test control signal, the intermediate connecting device and the two output switches form a loop for testing charging or data transmission between communication products.

8. The communication product testing device according to claim 7, characterized in that: The intermediate connecting device is a replaceable device under test when testing is required, and is a fixed path when testing is not required.

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