CN112305356A - Portable test instrument and test method - Google Patents
Portable test instrument and test method Download PDFInfo
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- CN112305356A CN112305356A CN202011157857.6A CN202011157857A CN112305356A CN 112305356 A CN112305356 A CN 112305356A CN 202011157857 A CN202011157857 A CN 202011157857A CN 112305356 A CN112305356 A CN 112305356A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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Abstract
The invention provides a portable testing instrument and a testing method, wherein the testing instrument comprises: the hardware interface comprises a high-drive/low-drive output interface, a high-effective digital input interface, a low-effective digital input interface, a communication interface, an analog quantity input interface and an analog quantity output interface; the storage unit is used for storing the test cases of all tested products; and the micro control unit is respectively connected with the hardware interface and the storage unit and is used for acquiring a signal fed back by the tested product through the hardware interface and determining whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product. The method and the device greatly reduce time, manpower and material resources consumed by detection and maintenance of the automobile electronic equipment.
Description
Technical Field
The invention belongs to the field of equipment detection, and particularly relates to a portable testing instrument and a testing method.
Background
The automobile electronic is a general term for automobile body electronic control devices and vehicle-mounted electronic control devices. The electronic control device for the automobile comprises an engine control system, a chassis control system and an electronic automobile body control system (electronic automobile body ECU). With the development of automobile electromotion, intellectualization, networking and sharing, the number of electronic devices in automobiles will continue to increase on the basis. In this case, the following problems occur:
1. under severe working conditions of the automobile, the possibility of damage of the electronic equipment of the single automobile is increased along with the increase of the number of the electronic equipment, and the maintenance requirement is increased;
2. the market competition is fierce, so that manufacturers need to continuously upgrade the software function, and the software upgrade of the automobile electronic equipment occurs frequently;
3. the requirement of consumers is fast in change, the requirement on humanization is high, and the electronic equipment has personalized software requirements on functions of some electronic equipment;
the current common processing mode is to detach the electronic equipment to be maintained/upgraded and return the electronic equipment to the factory for maintenance and upgrading, so that the time, labor and material resource consumption is greatly increased.
Disclosure of Invention
In order to solve the problem that a large amount of time, manpower and material resources are consumed for maintaining or upgrading the automobile electronic equipment at present, the embodiment of the application provides a portable testing instrument and a testing method.
In a first aspect, an embodiment of the present application provides a portable test instrument, including:
the hardware interface comprises a high-drive/low-drive output interface, a high-effective digital input interface, a low-effective digital input interface, a communication interface, an analog quantity input interface and an analog quantity output interface;
the storage unit is used for storing the test cases of all tested products;
and the micro control unit is respectively connected with the hardware interface and the storage unit and is used for acquiring a signal fed back by the tested product through the hardware interface and determining whether the hardware function of the tested product is normal or not according to the fed back signal and a test case of the tested product.
Wherein, the communication interface comprises a CAN/RS232/K line communication interface.
The test device further comprises a patch cord, and the patch cord is used for connecting the test instrument with a tested product.
The tested product comprises a vehicle body controller, an air conditioner controller, a driving recorder and a battery management system.
The tested product comprises a high-effective digital input interface, a low-effective digital input interface, a high-drive/low-drive output interface, a communication interface, an analog input interface and an analog output interface.
In a second aspect, the present application provides a testing method using the portable testing apparatus of any one of the above claims, comprising:
selecting a patch cord according to the type of a tested product, and connecting the tested product with a corresponding hardware interface of a test instrument;
after power-on, the test instrument selects the corresponding product model and starts to test;
and the micro control unit acquires a signal fed back by the tested product through the hardware interface, and determines whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product.
The tested product comprises a vehicle body controller, an air conditioner controller, a driving recorder and a battery management system.
The portable testing instrument and the testing method have the following beneficial effects:
the application relates to a portable test instrument, comprising: the hardware interface comprises a high-drive/low-drive output interface, a high-effective digital input interface, a low-effective digital input interface, a communication interface, an analog quantity input interface and an analog quantity output interface; the storage unit is used for storing the test cases of all tested products; and the micro control unit is respectively connected with the hardware interface and the storage unit and is used for acquiring a signal fed back by the tested product through the hardware interface and determining whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product. The method and the device greatly reduce time, manpower and material resources consumed by detection and maintenance of the automobile electronic equipment.
Drawings
FIG. 1 is a schematic diagram of a portable test instrument according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of another embodiment of a portable testing apparatus;
FIG. 3 is a schematic diagram of a portable testing apparatus connected to a product under test according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a testing method of the portable testing apparatus according to an embodiment of the present application.
Detailed Description
The present application is further described with reference to the following figures and examples.
In the following description, the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance. The following description provides embodiments of the invention, which may be combined or substituted for various embodiments, and this application is therefore intended to cover all possible combinations of the same and/or different embodiments described. Thus, if one embodiment includes feature A, B, C and another embodiment includes feature B, D, then this application should also be considered to include an embodiment that includes one or more of all other possible combinations of A, B, C, D, even though this embodiment may not be explicitly recited in text below.
The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements described without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than the order described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
With the development of automobile electromotion, intellectualization, networking and sharing, the number of electronic devices in automobiles will continue to increase on the basis. In this case, the following problems occur:
1. under severe working conditions of the automobile, the possibility of damage of the electronic equipment of the single automobile is increased along with the increase of the number of the electronic equipment, and the maintenance requirement is increased;
2. the market competition is fierce, so that manufacturers need to continuously upgrade the software function, and the software upgrade of the automobile electronic equipment occurs frequently;
3. the requirement of consumers is fast in change, the requirement on humanization is high, and the electronic equipment has personalized software requirements on functions of some electronic equipment;
the current common processing mode is to detach the electronic equipment to be maintained/upgraded and return the electronic equipment to the factory for maintenance and upgrading, so that the time, labor and material resource consumption is greatly increased. To solve these three problems, it is necessary to equip the electronic devices at a vehicle maintenance site such as a 4S store or a service station with a device capable of detecting the hardware function of the electronic devices and upgrading the software.
As shown in fig. 1-3, the present application is a portable testing instrument comprising: a hardware interface 201, which includes a high-drive/low-drive output interface, a high-effective digital input interface, a low-effective digital input interface, a communication interface, an analog input interface, and an analog output interface; a storage unit 203, configured to store test cases of each product under test; and the micro control unit 202 is respectively connected with the hardware interface and the storage unit, and is used for acquiring a signal fed back by the tested product through the hardware interface and determining whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product.
In some embodiments, the communication interface comprises a CAN/RS 232/K-wire communication interface. The portable testing instrument further comprises a patch cord, and the patch cord is used for connecting the testing instrument with a tested product. The tested product comprises a vehicle body controller, an air conditioner controller, a driving recorder and a battery management system. The tested product comprises a high-effective digital input interface, a low-effective digital input interface, a high-drive/low-drive output interface, a communication interface, an analog input interface and an analog output interface.
The present application enables hardware and software analysis of some common automotive electronics devices, such as Body Controllers (BCMs), air Conditioning Controllers (CCUs), tachographs (T-boxes), Battery Management Systems (BMS), etc., which have many similarities in the electrical characteristics of the interfaces. Detailed in table 1 below.
TABLE 1 part of the interface types and electrical characteristics of automobile electronics
According to the statistics of the information, the circuit types included in the four listed automobile electronic devices are listed, and the circuit types required by the detection device are listed in table 2.
TABLE 2 interface mapping table for automobile electronic interface types and detection equipment
The input interface electrical appliance characteristic of the test instrument comprises all the circuits, the number of the single-kind interfaces is designed according to the maximum quantity, the patch cord connection detection equipment and the tested product are provided, and all the equipment can be compatible in hardware function. As shown in fig. 2, the detection device of the present application mainly includes two parts, software and hardware: hardware is general hardware + special interface; software is general software + test case + input and output items. On the basis of hardware compatibility, different output ports are driven through software, corresponding feedback signals are sampled, and therefore different products can be adapted, and hardware function detection of different products is completed.
As shown in fig. 3, the hardware connection logic of the present application, software running on hardware, is adapted to different input/output ports and function logic, and completes hardware function detection of different products on the combination of input/output ports/function logic.
The method and the device can test the automobile electronic equipment with the appropriate number and the matched types of all interface electric appliances, and can ensure the hardware adaptation/software compatibility by increasing the types and the number of the electric appliance interfaces for the automobile electronic equipment which does not meet the requirements. The application has the following effects and advantages:
1. the time, labor and material resources consumed by the detection and maintenance of the automobile electronic equipment are greatly reduced;
2. the standardization level of the test equipment is improved;
3. the information such as the type, the serial number, the fault code and the like of the tested product can be recorded;
4. through software upgrading, the product program can be upgraded;
5. through customizing a protocol, historical record data in the product can be read, and program internal parameters of a calibration product and the like are configured;
6. according to the data recorded by the detection equipment, the automobile electronic equipment manufacturer can reversely deduce the position, the quantity and other information of the product which are most prone to failure, and establish a failure information database for a product development engineer to optimize the product design, so that the reliability is improved, the failure rate is reduced, and the claim loss of the host manufacturer is reduced.
As shown in fig. 4, the present application provides a testing method using any one of the portable testing instruments, including: s101, selecting a patch cord according to the type of a tested product, and connecting the tested product with a corresponding hardware interface of a test instrument; s103, after power is on, the test instrument selects a corresponding product model and starts to test; and S105, the micro control unit acquires a signal fed back by the tested product through the hardware interface, and determines whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product.
The application test instrument using method comprises the following steps:
1. the test instrument and the patch cord are respectively placed, and when the patch cord is used, the patch cord is selected according to the type of a product to be tested, and the product and the test instrument are connected;
2. after power-on, the test instrument selects the corresponding product model and starts to test;
3. after the test is finished, whether the hardware function of the tested piece is normal can be judged according to the indicator light and the fault code, and a corresponding processing method, such as returning to the factory for maintenance, upgrading software and the like, is selected accordingly.
In some embodiments, the product under test includes a body controller, an air conditioning controller, a tachograph, and a battery management system.
In the present application, embodiments of a testing method of a portable testing apparatus are substantially similar to embodiments of the portable testing apparatus, and reference is made to the description of the embodiments of the portable testing apparatus for relevant points.
It is clear to a person skilled in the art that the solution according to the embodiments of the invention can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, an FPGA (Field-Programmable Gate Array), an IC (Integrated Circuit), or the like.
Each processing unit and/or module according to the embodiments of the present invention may be implemented by an analog circuit that implements the functions described in the embodiments of the present invention, or may be implemented by software that executes the functions described in the embodiments of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
All functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A portable test instrument, comprising:
the hardware interface comprises a high-drive/low-drive output interface, a high-effective digital input interface, a low-effective digital input interface, a communication interface, an analog quantity input interface and an analog quantity output interface;
the storage unit is used for storing the test cases of all tested products;
and the micro control unit is respectively connected with the hardware interface and the storage unit and is used for acquiring a signal fed back by the tested product through the hardware interface and determining whether the hardware function of the tested product is normal or not according to the fed back signal and a test case of the tested product.
2. The portable test instrument of claim 1, wherein the communication interface comprises a CAN/RS 232/K-wire communication interface.
3. The portable test instrument of claim 1, further comprising a patch cord for connecting the test instrument to a product under test.
4. The portable testing instrument according to any one of claims 1 to 3, wherein the product under test comprises a vehicle body controller, an air conditioner controller, a tachograph and a battery management system.
5. The portable testing instrument according to any one of claims 1-3, wherein the product under test comprises a high-activity digital input interface, a low-activity digital input interface, a high-drive/low-drive output interface, a communication interface, an analog input interface, and an analog output interface.
6. A testing method using the portable testing instrument of any one of claims 1-5, comprising:
selecting a patch cord according to the type of a tested product, and connecting the tested product with a corresponding hardware interface of a test instrument;
after power-on, the test instrument selects the corresponding product model and starts to test;
and the micro control unit acquires a signal fed back by the tested product through the hardware interface, and determines whether the hardware function of the tested product is normal or not according to the fed back signal and the test case of the tested product.
7. The test method of claim 6, wherein the product under test comprises a vehicle body controller, an air conditioner controller, a tachograph, and a battery management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011157857.6A CN112305356A (en) | 2020-10-26 | 2020-10-26 | Portable test instrument and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011157857.6A CN112305356A (en) | 2020-10-26 | 2020-10-26 | Portable test instrument and test method |
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| CN112305356A true CN112305356A (en) | 2021-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116880963A (en) * | 2023-08-14 | 2023-10-13 | 芯华章智能科技(上海)有限公司 | Method for detecting connection errors between multiple hardware simulation tools |
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Cited By (2)
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Application publication date: 20210202 |
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