CN219657786U

CN219657786U - Universal virtual testing device

Info

Publication number: CN219657786U
Application number: CN202320843587.7U
Authority: CN
Inventors: 谢中衣; 彭时翔; 具士杰; 郑建敏; 徐浩然; 张小西; 谢卫星; 胡孙杰
Original assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Current assignee: Zhejiang Changjiang Automobile Electronics Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-09-08
Anticipated expiration: 2033-04-14

Abstract

The utility model relates to the field of automobile electronics, and provides a universal virtual testing device, which comprises a power supply module, a detection module and a communication module; the power supply module is electrically connected with the voltage source and the power supply module and is used for providing working voltage for the detection module and the product to be detected; the detection module is used for detecting the working state information of the product to be detected and generating a detection signal based on the working state information; the communication module is used for acquiring the detection signal and transmitting the detection signal to the mobile terminal so as to display the working state information. According to the scheme provided by the utility model, an operator can intuitively observe the detection result through the mobile terminal, so that the time for debugging the device is saved, the time for acquiring the detection result such as reading, verification and the like is shortened, and the time cost for using the virtual test bench is reduced to a great extent.

Description

Universal virtual testing device

Technical Field

The utility model relates to the field of automobile electronics, in particular to a universal virtual testing device.

Background

At present, the manufacturing period of the mass production bench is often longer, and the mass production bench is relatively heavy and is not suitable for carrying, and the requirement of the early sample distribution test of the product cannot be met, so that the conventional virtual test bench is used as a supplement to the mass production test bench and is mainly used for the early sample distribution test stage of the product.

In the related art, the virtual test bench mainly comprises a mobile terminal including a communication APP, a communication tool, an adjustable stabilized voltage supply, a universal meter, a product and a wire harness. In the testing process, a tester needs to manually connect a communication tool, an adjustable stabilized voltage supply, a universal meter, a product and the like through a wire harness, so that the test bench is built.

In the process, if an operator makes errors, the testing equipment is likely to be damaged; if the starting initial output voltage of the adjustable stabilized power supply is too high, the communication tool is likely to be damaged; if the current gear of the universal meter is not switched in time or is switched in error, the current test gear of the universal meter is likely to be damaged. Therefore, the operator is required to pay a lot of time and cost for the operator, both for the early training of the operation and for the repeated inspection at the time of the operation.

In addition, the final test result also needs to be compared with the information displayed by the communication APP and the test equipment by the tester and the sample inspection report template, which has higher technical quality requirements on the tester, and can occupy the working time of a hardware engineer, so that the engineer cannot input enough time to verify the reliability of the product.

In view of the above, the present utility model provides a universal virtual testing apparatus for reducing the time cost of using a virtual testing bench.

Disclosure of Invention

In order to reduce the time cost of using the virtual test bench, the utility model provides a universal virtual test device.

The utility model provides a universal virtual testing device, which adopts the following technical scheme:

the universal virtual testing device comprises a power supply module, a detection module and a communication module;

the power supply module is electrically connected with the voltage source and the detection module and is used for providing working voltage for the detection module and the product to be detected;

the detection module is used for detecting the working state information of the product to be detected and generating a detection signal based on the working state information;

the communication module is used for acquiring the detection signal and transmitting the detection signal to the mobile terminal so as to display the working state information.

Through adopting above-mentioned technical scheme, in the use, operating personnel can use the virtual testing arrangement of foretell general purpose to accomplish the work of product power supply, product detection and demonstration testing result. Specifically, in the detection process, the product to be detected often needs to be electrified to run, and the power supply module is used for providing a voltage source for the product to be detected, so that the detection process is more convenient.

After the product to be detected is electrified and operated, the detection module can detect multiple pieces of working state information of the product to be detected, and the communication module transmits detection signals to the mobile terminal. Therefore, an operator can intuitively observe the detection result through the mobile terminal, so that the time for debugging the device is saved, the time for acquiring the detection result such as reading, verification and the like is shortened, and the time cost for using the virtual test bench is reduced to a great extent.

In addition, compared with the existing virtual test bench, the test device provided by the scheme reduces the universal meter and the adjustable stabilized voltage supply which is not easy to carry, and is lighter and easy to carry.

Optionally, the detection signal includes a voltage detection signal and a current detection signal, and the detection module includes:

the voltage sampling unit is electrically connected with the power supply module and is used for acquiring a voltage sampling trigger signal, detecting an output voltage value of the power supply module based on the voltage sampling trigger signal and generating a voltage detection signal based on the output voltage value;

the current sampling unit is electrically connected with a power transmission line connected between the power supply module and a product to be detected, and is used for acquiring a current sampling trigger signal, detecting a current value on the power transmission line based on the current sampling trigger signal and generating a current detection signal based on the current value on the power transmission line;

the main control unit is respectively and electrically connected with the power supply module, the voltage sampling unit, the current sampling unit and the communication module, and is used for generating a voltage sampling trigger signal and a current sampling trigger signal, acquiring a voltage detection signal and a current detection signal, and transmitting the voltage detection signal and the current detection signal to the communication module.

By adopting the technical scheme, when voltage sampling and current sampling are required, the main control module generates corresponding voltage sampling trigger signals and current sampling trigger signals, so that corresponding detection results are obtained, and the detection results are transmitted to the communication module and displayed on the mobile terminal.

Optionally, the communication module comprises a voltage stabilizing unit and a LIN bus communication unit;

the voltage stabilizing unit is electrically connected with a virtual power plant voltage source and used for controlling the voltage value output to the LIN bus communication unit within a preset range;

the LIN bus communication unit is electrically connected with the voltage stabilizing unit and is used for acquiring the detection signal and transmitting the detection signal to the mobile terminal so as to display the working state information.

By adopting the technical scheme, the LIN bus is used for communication, so that the communication requirements of most products to be detected can be met. Therefore, the LIN bus is used for communication, so that the construction time of a communication link can be saved, and the time cost for adapting test devices of different products is reduced.

Optionally, the voltage stabilizing unit is an LDO voltage stabilizer.

By adopting the technical scheme, the LDO voltage stabilizer is a low-voltage-drop linear voltage stabilizer and has the outstanding advantages of low cost, low noise, small quiescent current, stable output voltage and the like.

Optionally, the current sampling unit includes a plurality of current sampling subunits, different current sampling subunits are respectively used for obtaining the current value on the power transmission line with different sampling precision, wherein, different sampling precision corresponds to different sampling range.

By adopting the technical scheme, a plurality of current sampling sub-units with different precision and different measuring ranges are arranged, so that the requirements of different products to be tested and different testing scenes can be met, and the wide applicability of the testing device is enhanced.

Optionally, the detection module further includes a key detection unit, where the key detection unit is configured to detect a feedback signal of a key corresponding to the product to be detected, generate a trigger signal based on the feedback signal, and be electrically connected to the main control unit, and is configured to transmit the trigger signal to the main control unit, so as to trigger the main control unit to generate the voltage sampling trigger signal.

By adopting the technical scheme, when the key of the product to be detected is pressed, the key detection unit can receive the feedback signal of the corresponding key of the product to be detected and can trigger the main control unit, so that the voltage detection is completed. Therefore, the testing device can also detect the key resistance of the product to be tested.

Optionally, the key detection unit includes a high-side key detection subunit and a low-side key detection subunit;

the high Bian Anjian detection subunit is used for acquiring the feedback signal of the high level from the product to be detected;

the low-side key detection subunit is used for acquiring the feedback signal of the low level from the product to be detected.

By adopting the technical scheme, the testing device can be matched with keys of different types at the same time, and the wide applicability of the testing device is enhanced.

Optionally, the power supply module comprises a direct current conversion unit and a voltage regulation unit;

the direct current conversion unit is used for being electrically connected with a voltage source and converting the acquired input voltage into working voltage of a product to be detected so as to supply power to the product to be detected;

the voltage regulating unit is respectively and electrically connected with the direct current converting unit and the main control unit, and is used for acquiring a voltage control signal from the main control unit and regulating the output voltage value of the direct current converting unit based on the voltage control signal.

Through adopting above-mentioned technical scheme, foretell testing arrangement can regard as adjustable power supply, to the operating voltage of waiting to detect the product output different voltage values, can satisfy the needs of different products that await measuring, different test scenes, strengthen above-mentioned testing arrangement's extensive suitability.

Optionally, the voltage regulating unit is a digital potentiometer.

By adopting the technical scheme, the digital potentiometer eliminates the resistor substrate and the electric brush and is a semiconductor integrated circuit. The device has the advantages of high adjustment precision, no noise, long service life, no mechanical abrasion and the like.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the operator can intuitively observe the detection result through the mobile terminal, so that the time for debugging the device is saved, the time for acquiring the detection result such as reading, verification and the like is shortened, and the time cost for using the virtual test bench is reduced to a great extent.

2. Compared with the existing virtual test bench, the test device provided by the scheme reduces the universal meter and the adjustable stabilized voltage supply which is not easy to carry, and is lighter and easy to carry.

3. The testing device can be matched with keys of different types at the same time, and the wide applicability of the testing device is enhanced.

4. The current sampling sub-units with different precision and different measuring ranges are arranged, so that the requirements of different products to be tested and different testing scenes can be met, and the wide applicability of the testing device is enhanced.

Drawings

Fig. 1 is a schematic connection diagram of a universal virtual testing apparatus according to an embodiment of the present utility model.

Fig. 2 is a circuit diagram of a current sampling unit part of a universal virtual test apparatus according to an embodiment of the present utility model.

Fig. 3 is a circuit diagram of a current sampling unit part of a universal virtual test apparatus according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a power supply module; 11. a direct current conversion unit; 12. a voltage regulating unit; 2. a detection module; 20. a display unit; 21. a voltage sampling unit; 22. a current sampling unit; 23. a main control unit; 24. a key detection unit; 241. a high-side key detection subunit; 242. a low-side key detection subunit; 3. a communication module; 31. a voltage stabilizing unit; 32. LIN bus communication unit.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the inventive concepts. As part of this specification, some of the drawings of the present disclosure represent structures and devices in block diagram form in order to avoid obscuring the principles of the disclosure. In the interest of clarity, not all features of an actual implementation are necessarily described. Reference in the present disclosure to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and multiple references to "one embodiment" or "an embodiment" should not be understood as necessarily all referring to the same embodiment.

The terms "a," "an," and "the" are not intended to refer to a singular entity, but rather include the general class of which a particular example may be used for illustration, unless clearly defined. Thus, the use of the terms "a" or "an" may mean any number of at least one, including "one", "one or more", "at least one", and "one or more than one". The term "or" means any of the alternatives and any combination of alternatives, including all alternatives, unless alternatives are explicitly indicated as mutually exclusive. The phrase "at least one of" when combined with a list of items refers to a single item in the list or any combination of items in the list. The phrase does not require all of the listed items unless specifically so defined.

The embodiment of the utility model discloses a universal virtual testing device. Referring to fig. 1, a universal virtual testing apparatus includes a power supply module 1, a detection module 2, and a communication module 3. The power supply module 1 is electrically connected with a voltage source and the detection module 2 and is used for providing working voltage for the detection module 2 and a product to be detected; the detection module 2 is used for detecting the working state information of a product to be detected and generating a detection signal based on the working state information; the communication module 3 is configured to obtain the detection signal, and transmit the detection signal to a mobile terminal, so as to display the working state information.

In the use, operating personnel can use the above-mentioned general purpose virtual testing arrangement to accomplish the work of product power supply, product detection and demonstration testing result. Specifically, in the detection process, the product to be detected often needs to be electrified for operation, and the power supply module 1 is used for providing a voltage source for the product to be detected, so that the detection process is more convenient.

After the product to be detected is electrified and operated, the detection module 2 can detect a plurality of pieces of working state information of the product to be detected, and the communication module 3 transmits detection signals to the mobile terminal. Therefore, an operator can intuitively observe the detection result through the mobile terminal, so that the time for debugging the device is saved, the time for acquiring the detection result such as reading, verification and the like is shortened, and the time cost for using the virtual test bench is reduced to a great extent. In addition, compared with the existing virtual test bench, the test device provided by the scheme reduces the universal meter and the adjustable stabilized voltage supply which is not easy to carry, and is lighter and easy to carry.

Additionally, the power supply module 1, the detection module 2 and the communication module 3 are all electrically connected with the product to be detected through connectors, so that detection work of data such as the working state and the operation parameters of the target product is performed. In different embodiments, the connector may be of different types, and in this embodiment, the connector model is DB25, as an example. The DB25 connector has an anti-reflection function, and once the wire harness of the DB25 connector is shorted, the corresponding indicator lamp can flash, so that the damage to products and test equipment caused by the wrong wire harness connection is avoided. Thus, the use of DB25 connectors can reduce product and equipment loss rates.

In different embodiments, the detection module 2 may have different functions, and the corresponding detection signals may also correspond to different detection types. As an example, in the present embodiment, the detection signal includes a voltage detection signal and a current detection signal, and the detection module 2 includes: a voltage sampling unit 21, a current sampling unit 22 and a main control unit 23.

Specifically, the voltage sampling unit 21 is electrically connected to the power supply module 1, and is configured to obtain a voltage sampling trigger signal, detect an output voltage value of the power supply module 1 based on the voltage sampling trigger signal, and generate a voltage detection signal based on the output voltage value; the current sampling unit 22 is electrically connected to a power transmission line connected between the power supply module 1 and a product to be detected, and is configured to obtain a current sampling trigger signal, detect a current value on the power transmission line based on the current sampling trigger signal, and generate a current detection signal based on the current value on the power transmission line.

Specifically, the main control unit 23 is electrically connected to the power supply module 1, the voltage sampling unit 21, the current sampling unit 22, and the communication module 3, respectively, and is configured to generate the voltage sampling trigger signal and the current sampling trigger signal, and to acquire the voltage detection signal and the current detection signal, and to transmit the voltage detection signal and the current detection signal to the communication module 3.

Additionally, the detection module 2 further includes a display unit 20, where the display unit 20 is electrically connected to the main control unit 23, and is configured to display an operating state of the product to be detected.

When voltage sampling and current sampling are required, the main control module generates a corresponding voltage sampling trigger signal and a corresponding current sampling trigger signal, so as to obtain a corresponding detection result, and transmits the detection result to the communication module 3, so as to be displayed on the mobile terminal.

In particular, but not limited to, in this embodiment, the current sampling unit 22 includes a plurality of current sampling sub-units, and different current sampling sub-units are respectively used to obtain the current value on the power transmission line with different sampling precision, where different sampling precision corresponds to different sampling range. The current sampling sub-units with different precision and different measuring ranges are arranged, so that the requirements of different products to be tested and different testing scenes can be met, and the wide applicability of the testing device is enhanced.

Referring to fig. 2 and 3, in this embodiment, for example, 4 current sampling subunits are provided, and the measuring ranges are set by adopting a series resistance mode, where the measuring ranges of three current sampling subunits are respectively 1mA (corresponding to the S1 and Q1 signals in fig. 2), 250mA (corresponding to the S2 and Q2 signals in fig. 2) and 2.5A (corresponding to the S3 and Q3 signals in fig. 3), and the other current sampling subunit (corresponding to the S4 and Q4 signals in fig. 3) is connected in series with resistors, so as to directly output the working current of the product to be tested.

In the use, above-mentioned range is 1 mA's current sampling subunit and is used for measuring the current under the product sleep state of waiting to detect, because the range is little enough, can accomplish the detection more accurately. Meanwhile, the current sampling subunit with the measuring range of 1mA is also used for detecting the power consumption of a product to be detected, and the risk of burning the product caused by overlarge current can be reduced.

Additionally, the current sampling sub-units of the different ranges can be switched in different ways. As an example, in the present embodiment, switching is performed between the above-described different current sampling sub-units through a relay switch.

With continued reference to fig. 1, the detection module 2 specifically, but not limited to, further includes a key detection unit 24, where the key detection unit 24 is configured to detect a feedback signal of a key corresponding to a product to be detected, generate a trigger signal based on the feedback signal, and is electrically connected to the main control unit 23, and is configured to transmit the trigger signal to the main control unit 23 to trigger the main control unit 23 to generate the voltage sampling trigger signal.

When the key of the product to be detected is pressed, the key detection unit 24 can receive the feedback signal of the corresponding key of the product to be detected, and can trigger the main control unit 23, thereby completing the detection of the voltage. Therefore, the testing device can also detect the key resistance of the product to be tested. Specifically, when the above scheme is used to measure and detect the resistance of the product key, it is necessary to obtain the voltage value data before the key is pressed, detect the voltage value data after the key is pressed, and obtain the data of the resistance of the key through the change of the voltage value.

Further, the key detection unit 24 includes a high-side key detection subunit 241 and a low-side key detection subunit 242. The high-side key detection subunit 241 is configured to obtain the feedback signal of a high level from a product to be tested; the low-side key detection subunit 242 is configured to obtain the feedback signal from the low level of the product to be tested. The testing device can be matched with keys of different types at the same time, and the wide applicability of the testing device is enhanced.

The communication module 3 is configured to obtain the detection signal, and transmit the detection signal to a mobile terminal, so as to display the working state information. In particular, but not limited to, in the present embodiment, the above-described communication module 3 includes a voltage stabilizing unit 31 and a LIN bus communication unit 32.

Wherein, the voltage stabilizing unit 31 is electrically connected with the virtual power plant voltage source VPP, and is used for controlling the voltage value output to the LIN bus communication unit 32 within a preset range; the LIN bus communication unit 32 is electrically connected to the voltage stabilizing unit 31, and is configured to acquire the detection signal, and transmit the detection signal to a mobile terminal, so as to display the operating state information. The LIN bus is used for communication, so that the communication requirements of most products to be detected can be met. Therefore, the LIN bus is used for communication, so that the construction time of a communication link can be saved, and the time cost for adapting test devices of different products is reduced.

Illustratively, VPP (Virtual Power Plant) represents a virtual power plant, which is an innovative model of power demand side management that can improve power utilization efficiency and reduce consumer power consumption while achieving the construction of conventional power plants and corresponding power transmission and distribution systems. The virtual power plant is also called an energy efficiency power plant, and generates surplus electric energy in a mode of reducing the electricity consumption requirements of terminal electric equipment and devices, namely, some devices for improving the electricity consumption efficiency are arranged on electricity consumption requirements, so that the effect of building the actual power plant is achieved, and the reduction of the requirements is equal to the increase of the supply of other parts of the power grid.

Further, in different embodiments, the voltage stabilizing unit 31 may be formed by different elements, and the voltage stabilizing unit 31 is, for example, an LDO voltage stabilizer. The LDO voltage stabilizer is a low-voltage-drop linear voltage stabilizer and has the outstanding advantages of low cost, low noise, small quiescent current, stable output voltage and the like.

The power supply module 1 is electrically connected with a voltage source and the power supply module 1, and is used for providing working voltage for the detection module 2 and the product to be detected. In particular, but not by way of limitation, the above-mentioned power supply module 1 comprises a direct current conversion unit 11 and a voltage regulation unit 12.

The dc conversion unit 11 is configured to be electrically connected to a voltage source, and convert the obtained input voltage into a working voltage of a product to be detected, so as to supply power to the product to be detected; the voltage adjusting unit 12 is electrically connected to the dc converting unit 11 and the main control unit 23, respectively, and is configured to obtain a voltage control signal from the main control unit 23, and adjust an output voltage value of the dc converting unit 11 based on the voltage control signal. The testing device can be used as an adjustable power supply to output working voltages with different voltage values to products to be tested, can meet the requirements of different products to be tested and different testing scenes, and enhances the wide applicability of the testing device.

Further, in different embodiments, the voltage regulating unit 12 may be formed by different elements, and the voltage regulating unit 12 is a digital potentiometer as an example. The digital potentiometer eliminates the resistor substrate and the brush and is a semiconductor integrated circuit. The device has the advantages of high adjustment precision, no noise, long service life, no mechanical abrasion and the like.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The universal virtual testing device is characterized by comprising a power supply module, a detection module and a communication module;

2. The universal virtual test apparatus of claim 1, wherein the detection signals comprise a voltage detection signal and a current detection signal, the detection module comprising:

3. The universal virtual test apparatus of claim 1, wherein the communication module comprises a voltage stabilizing unit and a LIN bus communication unit;

4. The universal virtual test apparatus of claim 3, wherein the voltage regulator unit is an LDO voltage regulator.

5. The universal virtual test apparatus of claim 2, wherein the current sampling unit comprises a plurality of current sampling subunits, different ones of the current sampling subunits being respectively configured to obtain current values on the power transmission line with different sampling accuracies, wherein the different sampling accuracies correspond to different sampling ranges.

6. The universal virtual testing device according to claim 2, wherein the detection module further comprises a key detection unit, the key detection unit is configured to detect a feedback signal of a key corresponding to a product to be detected, generate a trigger signal based on the feedback signal, and is electrically connected to the main control unit, and is configured to transmit the trigger signal to the main control unit, so as to trigger the main control unit to generate the voltage sampling trigger signal.

7. The universal virtual test apparatus of claim 6, wherein the key detection unit comprises a high-side key detection subunit and a low-side key detection subunit;

8. The universal virtual test apparatus of claim 2, wherein the power supply module comprises a dc conversion unit and a voltage regulation unit;

9. The universal virtual testing apparatus of claim 8, wherein the voltage regulating unit is a digital potentiometer.