CN115357067B - Full-automatic batch test system for high-low temperature performance of wireless image transmission product - Google Patents
Full-automatic batch test system for high-low temperature performance of wireless image transmission product Download PDFInfo
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- CN115357067B CN115357067B CN202211037895.7A CN202211037895A CN115357067B CN 115357067 B CN115357067 B CN 115357067B CN 202211037895 A CN202211037895 A CN 202211037895A CN 115357067 B CN115357067 B CN 115357067B
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- 238000012360 testing method Methods 0.000 title claims abstract description 152
- 230000005540 biological transmission Effects 0.000 title claims abstract description 125
- 238000011056 performance test Methods 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
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- 238000012545 processing Methods 0.000 description 3
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention provides a full-automatic batch test system for high and low temperature performance of wireless image transmission products, which belongs to the technical field of performance test and comprises the following components: the temperature control box is internally provided with a plurality of test mainboards and a plurality of wireless image transmission products and is used for providing a temperature-controllable test environment; the upper computer is respectively connected with the temperature control box and the test mainboards and is used for controlling the temperature of the temperature control box; issuing a test instruction to the test main board and receiving a test result fed back by the test main board; each test main board is connected with at least one wireless image transmission product and is used for powering on the wireless image transmission product included in the test instruction, and controlling the wireless image transmission product and the wireless receiving end to transmit image transmission data so as to perform performance test and obtain a test result. The beneficial effects are that: the invention can automatically control the test flow and adjust the test temperature, liberate manpower, improve the test efficiency and is applicable to batch test of products.
Description
Technical Field
The invention relates to the technical field of performance test, in particular to a full-automatic batch test system for high-low temperature performance of wireless image transmission products.
Background
Wireless transmission, i.e. the transmission of wireless images. At present, the wireless image transmission does not form a typical industrialized development mode, and the technical modes of implementation are also various. Whether the wireless image transmission product can normally start and transmit images at high and low temperatures, whether the power consumption is abnormal at each temperature and the like are important performance evaluation bases.
In the existing test system, a plurality of modules are tested simultaneously, the wiring is more, and the environment is built more complicated; the whole process is manually participated in the testing flow, each product is electrified one by one in a manual mode, whether the image can be normally transmitted or not is observed, the working power consumption is recorded, the evaluation result of the image transmission effect is fuzzy through manual observation, no visual data is embodied, the situation that the data is recorded in error possibly occurs, the influence of human factors is large, and the method is not suitable for batch testing; the temperature control box is manually adjusted through manpower in the test process, so that manpower is wasted, and the test efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention provides a full-automatic batch test system for high-low temperature performance of wireless image transmission products.
The technical problems solved by the invention can be realized by adopting the following technical scheme:
A full-automatic batch test system for high and low temperature performance of wireless image transmission products comprises:
the temperature control box is internally provided with a plurality of test mainboards and a plurality of wireless image transmission products and is used for providing a temperature-controllable test environment;
The upper computer is respectively connected with the temperature control box and the test mainboards and is used for controlling the temperature of the temperature control box; issuing a test instruction to the test main board and receiving a test result fed back by the test main board;
Each test main board is connected with at least one wireless image transmission product, and is used for powering on the wireless image transmission product included in the test instruction, controlling the wireless image transmission product and the wireless receiving end to transmit image transmission data so as to perform performance test, and obtaining a test result.
Preferably, the test motherboard includes:
The acquisition unit is used for acquiring current and voltage information of the wireless image transmission product;
the temperature sensing unit is used for acquiring temperature information in the temperature control box;
the control unit is respectively connected with the acquisition unit and the temperature sensing unit, and is used for receiving the current and voltage information and the temperature information and summarizing the current and voltage information and the temperature information in the test result;
The power supply control switches are controllably connected between each wireless image transmission product and the acquisition unit and used for controlling the power on and power off of the wireless image transmission products;
and the level conversion circuits are connected between each wireless image transmission product and the control unit.
Preferably, each of the level shift circuits is further configured to perform an enable control according to an enable control signal output from the control unit.
Preferably, each wireless image transmission product is correspondingly provided with identification information;
The test motherboard further comprises:
The acquisition unit is used for acquiring the identification information of the wireless image transmission product;
the first sending unit is connected with the acquisition unit and used for sending the identification information to the wireless receiving end;
The wireless receiving end is matched with the corresponding wireless image transmission product according to the identification information and is connected with the wireless image transmission product in a wireless mode so as to perform data transmission.
Preferably, the wireless receiving end includes:
The receiving unit is used for receiving the image transmission data sent by the wireless image transmission product;
The first statistics unit is connected with the receiving unit and is used for counting the number of received frames of the received image transmission data and sending the counted number of frames to the test main board;
And the test main board calculates the success rate of image transmission communication according to the receiving frame number of the wireless receiving end and the sending frame number of the wireless image transmission product, and the success rate is included in the test result.
Preferably, the wireless image transmission product comprises:
The storage unit is used for storing the image transmission data;
The calling unit is connected with the storage unit and used for acquiring the image transmission data from the storage unit and sending the image transmission data to the wireless receiving end;
And the second statistical unit is connected with the calling unit and is used for counting the sending frame number of the sent image transmission data and sending the image transmission data to the test main board.
Preferably, the method further comprises: and the external power supply is controllably connected with the plurality of test mainboards and used for providing an adjustable power supply for the test mainboards.
Preferably, the upper computer is connected with the temperature control box through an RS232 bus.
Preferably, the upper computer, the test mainboards and the wireless receiving end are communicated through an RS485 bus.
The technical scheme of the invention has the advantages that:
according to the invention, the upper computer controls the testing flow of the testing main board and the testing temperature environment of the temperature control box, so that automatic testing is realized, manpower is liberated, time is saved, testing efficiency is improved, and the device and the method are suitable for batch testing of products.
Drawings
FIG. 1 is a schematic diagram of a fully automatic batch test system for high and low temperature performance of wireless graphic transmission products in a preferred embodiment of the invention;
FIG. 2 is a schematic diagram showing an embodiment of a test motherboard according to the present invention;
fig. 3 is a schematic diagram of a wireless receiver according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
In a preferred embodiment of the present invention, based on the above-mentioned problems existing in the prior art, a full-automatic batch test system for high-low temperature performance of wireless image transmission products is provided, which belongs to the technical field of performance test, as shown in fig. 1, and includes:
the temperature control box 1 is internally provided with a plurality of test mainboards 2 and a plurality of wireless image transmission products, and is used for providing a temperature-controllable test environment;
the upper computer 3 is respectively connected with the temperature control box 1 and the plurality of test mainboards 2 and is used for controlling the temperature of the temperature control box 1; a test instruction is issued to the test main board 2, and a test result fed back by the test main board 2 is received;
Each test motherboard 2 is connected with at least one wireless image transmission product, and is used for powering on the wireless image transmission product included in the test instruction, and controlling the wireless image transmission product and the wireless receiving end 4 to transmit image transmission data so as to perform performance test, and a test result is obtained.
Specifically, in this embodiment, control software is integrated in the upper computer 3, and the temperature of the temperature control box 1 is set according to the test requirement through the control software. The system integrates various testing functions on the testing main board 2 without various testing equipment, sets all testing items on the upper computer 3 in advance during testing, then sends the mode and the times to be tested to the testing main board 2, and gathers testing data to the upper computer 3 after the testing main board 2 performs testing, so that unattended automatic operation is realized.
Further, the upper computer 3 displays the test result fed back by the test main board 2, so that the test effect can be intuitively and clearly observed.
Furthermore, the upper computer 3 may further record each parameter and the abnormal data of each product in detail according to the test result, and perform specific processing on the abnormal data, where the specific processing includes but is not limited to abnormal reminding, abnormal highlighting, and abnormal alarming.
Furthermore, the upper computer 3 can also support the arrangement of test tables and the one-key export function of tables
Further, one test motherboard 2 may control at least 20 wireless graphic products simultaneously. According to the setting data of the size control test main board 2 of the temperature control box 1, the test main board 2 can be used independently, and a plurality of test main boards 2 can be used in parallel, so that the test efficiency is improved.
As a preferred embodiment, wherein, as shown in fig. 2, the test motherboard 2 includes:
the acquisition unit 22 is used for acquiring current and voltage information of the wireless line transmission product;
a temperature sensing unit 23 for acquiring temperature information in the temperature control box 1;
The control unit 21 is connected with the acquisition unit 22 and the temperature sensing unit 23 respectively, and is used for receiving the current and voltage information and the temperature information and summarizing the current and voltage information and the temperature information in the test result.
Specifically, in this embodiment, the monitoring circuit disposed on the test motherboard 2 and configured to monitor the current, voltage and temperature can monitor the temperature of the test environment, and the working voltage and working current of the wireless image transmission product in real time.
As a preferred embodiment, as shown in fig. 2, the test motherboard 2 further includes:
And a plurality of power control switches (241 … n) controllably connected between each wireless transmission product and the acquisition unit and used for controlling the power on and power off of the wireless transmission products.
Specifically, in this embodiment, by controlling the on-off state of each power control switch (241 … n), power can be supplied to the wireless image transmission product when the wireless image transmission product is tested at high and low temperatures; and in the period of non-test, disconnecting the power supply connection of the products, and accurately controlling the power supply on-off of each product.
Further, the test motherboard 2 may be powered up alone, i.e.: only one wireless image transmission product is in an electrified state at the same time; or some or all of the wireless transmission products may be powered on.
Furthermore, the communication control is performed between the test motherboard 2 and the wireless image transmission product as communication and control IO through a UART interface.
Further, the test motherboard 2 communicates with the outside through an RS485 interface, for example, the test motherboard 2 communicates with the upper computer 3 through RS 485.
As a preferred embodiment, as shown in fig. 2, the test motherboard 2 further includes:
A plurality of level shifting circuits (251 … n) connected between each wireless transmission product and the control unit.
Specifically, in the present embodiment, the communication and control IO between the test motherboard 2 and the wireless image transmission product are isolated by the level shifter circuit (251 … n) in a multiplexing manner.
Further, the level shift circuit (251 … n) is a circuit mainly including a level shift chip, and the present invention can be implemented by using an existing level shift circuit, which is not described herein.
As a preferred embodiment, each level shifter circuit (251 … n) is further configured to perform an enable control according to an enable control signal output from the control unit.
Specifically, in this embodiment, when a certain product is tested, the level conversion circuits of other wireless transmission products are in a disabled state, so that the level conversion circuits do not interfere with each other, and the single chip microcomputer MCU on the test motherboard 2 can control more products by using very few pins.
As a preferred embodiment, each wireless transmission product is correspondingly provided with an identification message;
The test motherboard 2 further comprises:
an acquisition unit (not shown in the figure) for acquiring identification information of the wireless transmission product;
A first transmitting unit (not shown in the figure), a connection acquiring unit, for transmitting the identification information to the wireless receiving terminal 4;
The wireless receiving end 4 is matched with the corresponding wireless image transmission product according to the identification information and is connected with the wireless image transmission product in a wireless mode so as to perform data transmission.
Specifically, in this embodiment, the test motherboard 2 communicates with the wireless image transmission product through a UART interface to obtain identification information thereof, where the identification information may be a service set identifier (SERVICE SET IDENTIFIER, SSID); then the identification information is sent to the wireless receiving end 4; the wireless receiving end 4 is connected with the wireless image transmission product according to the received identification information, so as to receive image transmission data sent by the wireless image transmission product.
Furthermore, the functions of the acquiring unit and the first sending unit may be integrated in a control unit, and the control unit is implemented by using an MCU.
As a preferred embodiment, the wireless receiving terminal 4 includes:
A receiving unit (not shown in the figure) for receiving the image transmission data transmitted by the wireless image transmission product;
A first statistics unit (not shown in the figure) connected to the receiving unit, for counting the number of received frames of the received image transmission data, and sending the counted number of frames to the test motherboard 2;
The test main board 2 calculates the success rate of image transmission communication according to the receiving frame number of the wireless receiving end 4 and the sending frame number of the wireless image transmission product, and the success rate is included in the test result.
Specifically, in this embodiment, the wireless image transmission product counts the number of transmission frames when transmitting image transmission data; the wireless receiving end 4 counts the number of receiving frames while receiving the image transmission data sent by the wireless image transmission product; after a period of communication, the test main board 2 acquires the transmission frame number and the receiving frame number, counts the success rate of image transmission and communication, and after the test of a single product is finished, the test main board 2 gathers all test data to the upper computer 3, wherein the test results include but are not limited to: working voltage, working current, temperature, success rate of image transmission and the like, and the image transmission effect is intuitively evaluated and compared by counting the number of transmission frames and the number of reception frames.
As a preferred embodiment, the wireless image transmission product includes:
The storage unit is used for storing the image transmission data;
the retrieving unit is connected with the storage unit and is used for acquiring the image transmission data from the storage unit and sending the image transmission data to the wireless receiving end 4;
the second statistics unit is connected with the calling unit, and is used for counting the sending frame number of the sent image transmission data and sending the image transmission data to the test main board 2.
Specifically, in this embodiment, the image data is recorded in a storage unit of the product, and preferably, the storage unit may be a memory; the product can retrieve the image transmission data from the memory, then send the image transmission data to the wireless receiving end 4 in a wireless transmission mode according to the frame rate and the data size of actual work, and meanwhile, the transmitted frame rate is counted, and the image transmission communication effect can be observed more intuitively through the specific data of the transmission frame number.
Further, the wireless image transmission product and the wireless receiving end 4 realize wireless communication transmission through the antenna 41.
Further, the wireless receiving terminal 4 is implemented by a wireless receiving board, the wireless receiving board is provided with a decoding chip, and TTL level signals are output.
As a preferred embodiment, the method further comprises: and the external power supply is controllably connected with the plurality of test mainboards 2 and is used for providing an adjustable power supply for the test mainboards 2.
Specifically, in the present embodiment, the test motherboard 2 and the product are powered by an external power supply. In a preferred embodiment, the external power supply is only required to be turned on all the time, the test motherboard 2 automatically controls the on and off of the power supply control switches (241 … n) according to the requirement, and can supply power to the products controllably, only two power lines are required to be arranged, and the lead wires are not required to be arranged for each product to supply power, so that the wiring line is simplified.
As a preferred embodiment, the upper computer 3 is connected to the temperature control box 1 through an RS232 bus.
Specifically, in this embodiment, the upper computer 3 controls the test temperature in the temperature control box 1 through the RS232 bus, so as to realize temperature adjustment.
Further, the temperature control box 1 may include a preset temperature mode, and the corresponding temperature control is performed by selecting the temperature mode. Temperature modes include, but are not limited to: a temperature increasing mode, a temperature decreasing mode, or a fixed temperature mode.
Furthermore, the temperature control box 1 can also directly support the setting of temperature, and provides corresponding test environments according to the set temperature.
In the preferred embodiment, the upper computer 3, the plurality of test mainboards 2 and the wireless receiving end 4 communicate with each other through an RS485 bus.
Specifically, in this embodiment, all the test main boards 2 are connected with the wireless receiving end 4 through an RS485 bus, all the test main boards 2 are connected with the upper computer 3 through the RS485 bus, and only two RS485 buses are required to be arranged, so that all the test main boards 2, the wireless receiving end 4 and the upper computer 3 are connected in parallel, the circuit line is simplified, and the wiring is simple. Meanwhile, the RS485 bus has a long communication distance and strong anti-interference capability. Further, the different devices are distinguished by addresses.
Further, in the above preferred embodiment, the test motherboard 2 further includes a first protocol conversion circuit 26 connected to the control unit 21 for performing conversion of the RS485 protocol and the UART protocol.
Further, as shown in fig. 3, the wireless receiving board specifically includes: a wireless receiving circuit 42 mainly comprising a wireless SOC chip for realizing communication connection control, image transmission data receiving and data processing functions, wherein the functions of the receiving unit and the first statistic unit can be integrated in the wireless receiving circuit 42; the second protocol conversion circuit 43 is connected to the wireless receiving circuit 42 and is used for performing protocol conversion.
The technical scheme has the following advantages or beneficial effects: according to the invention, the upper computer controls the testing flow of the testing main board and the testing temperature environment of the temperature control box, so that automatic testing is realized, manpower is liberated, time is saved, testing efficiency is improved, and the device and the method are suitable for batch testing of products.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and drawings, and are intended to be included within the scope of the present invention.
Claims (9)
1. A wireless image transmission product high-low temperature performance full-automatic batch test system is characterized by comprising:
the temperature control box is internally provided with a plurality of test mainboards and a plurality of wireless image transmission products and is used for providing a temperature-controllable test environment;
The upper computer is respectively connected with the temperature control box and the test mainboards and is used for controlling the temperature of the temperature control box; issuing a test instruction to the test main board and receiving a test result fed back by the test main board;
Each test main board is connected with at least one wireless image transmission product, and is used for powering on the wireless image transmission product included in the test instruction, controlling the wireless image transmission product and a wireless receiving end to transmit image transmission data so as to perform performance test, and obtaining a test result;
Each wireless image transmission product is correspondingly provided with identification information;
the test motherboard further comprises: the acquisition unit is used for acquiring the identification information of the wireless image transmission product; the first sending unit is connected with the acquisition unit and used for sending the identification information to the wireless receiving end; the wireless receiving end is matched with the corresponding wireless image transmission product according to the identification information and is connected with the wireless image transmission product in a wireless mode so as to perform data transmission.
2. The system for full-automatic batch testing of high and low temperature performance of wireless image-transmission products according to claim 1, wherein the test main board comprises:
The acquisition unit is used for acquiring current and voltage information of the wireless image transmission product;
the temperature sensing unit is used for acquiring temperature information in the temperature control box;
the control unit is respectively connected with the acquisition unit and the temperature sensing unit, and is used for receiving the current and voltage information and the temperature information and summarizing the current and voltage information and the temperature information in the test result;
The power supply control switches are controllably connected between each wireless image transmission product and the acquisition unit and used for controlling the power on and power off of the wireless image transmission products;
and the level conversion circuits are connected between each wireless image transmission product and the control unit.
3. The system of claim 2, wherein each level shifter is further configured to perform an enabling control according to an enabling control signal output by the control unit.
4. The system of claim 1, wherein the identification information is a service set identification.
5. The system for full-automatic batch testing of high and low temperature performance of wireless image-transmission products according to claim 1, wherein the wireless receiving end comprises:
The receiving unit is used for receiving the image transmission data sent by the wireless image transmission product;
The first statistics unit is connected with the receiving unit and is used for counting the number of received frames of the received image transmission data and sending the counted number of frames to the test main board;
And the test main board calculates the success rate of image transmission communication according to the receiving frame number of the wireless receiving end and the sending frame number of the wireless image transmission product, and the success rate is included in the test result.
6. The fully automatic batch test system for high and low temperature performance of a wireless image-transmission product according to claim 1, wherein the wireless image-transmission product comprises:
The storage unit is used for storing the image transmission data;
The calling unit is connected with the storage unit and used for acquiring the image transmission data from the storage unit and sending the image transmission data to the wireless receiving end;
And the second statistical unit is connected with the calling unit and is used for counting the sending frame number of the sent image transmission data and sending the image transmission data to the test main board.
7. The fully automatic batch test system for high and low temperature performance of wireless graphic transfer products of claim 1, further comprising: and the external power supply is controllably connected with the plurality of test mainboards and used for providing an adjustable power supply for the test mainboards.
8. The full-automatic batch test system for high and low temperature performance of wireless image transmission products according to claim 1, wherein the upper computer is connected with the temperature control box through an RS232 bus.
9. The full-automatic batch test system for high and low temperature performance of wireless image transmission products according to claim 1, wherein the upper computer, the plurality of test mainboards and the wireless receiving end are communicated through an RS485 bus.
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| CN202211037895.7A CN115357067B (en) | 2022-08-26 | 2022-08-26 | Full-automatic batch test system for high-low temperature performance of wireless image transmission product |
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| CN202211037895.7A CN115357067B (en) | 2022-08-26 | 2022-08-26 | Full-automatic batch test system for high-low temperature performance of wireless image transmission product |
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| CN115357067A (en) | 2022-11-18 |
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