CN112260999A - Compressed data transmission method for automatic test equipment - Google Patents
Compressed data transmission method for automatic test equipment Download PDFInfo
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- CN112260999A CN112260999A CN202011015115.XA CN202011015115A CN112260999A CN 112260999 A CN112260999 A CN 112260999A CN 202011015115 A CN202011015115 A CN 202011015115A CN 112260999 A CN112260999 A CN 112260999A
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 44
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000013144 data compression Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a transmission method of compressed data of automatic test equipment, which comprises a signal acquisition module, a signal processing module, an MCU data processing module, a communication module and an upper computer, wherein the output end of the signal acquisition module is connected with the input end of the signal processing module; the transmission comprises the following steps: s1: signal acquisition is carried out through a signal acquisition module; s2: processing the acquired signals through a signal processing module; s3: performing data processing on the processed signals through an MCU data processing module; s4: the communication module uploads the data processed by the MCU data processing module to the upper computer; s5: the upper computer distributes various control instructions. The invention can greatly improve the data transmission efficiency under the condition of not changing the communication speed and the communication mode.
Description
Technical Field
The invention relates to the technical field related to automatic test equipment, in particular to a compressed data transmission method for automatic test equipment.
Background
The upper computer (computer) of the automatic test equipment needs to communicate data with a plurality of test modules (test detection boards), generally only can adopt a serial communication mode, each test module used on the existing test equipment is provided with a serial communication module, and the serial communication mode has the advantages of simple protocol, convenient realization and suitability for the upper computer and the test modules. The serial communication mode has the defect that the serial communication mode is limited by the communication rate (the rate cannot be selected too fast due to the limitation of hardware devices and interference), and the rate of 57600 is an option with the optimal comprehensive performance after long-term application on automatic equipment. This rate meets the test requirements for signals for most products, but partial signal testing for partial control boards is not sufficient. There are several solutions to this problem: 1. the method has the biggest problems that the communication module of the test module needs to be changed in design, the universality is greatly reduced, and an upper computer (computer) cannot support the communication of a plurality of parallel ports; 2. the method is limited by the test module, due to hardware reasons, part of the test modules cannot adopt the speed higher than 57600, the universality of the equipment can be influenced by adopting high speed of a few modules, and the test efficiency can be influenced by interference in the equipment due to the overhigh speed.
Therefore, a compressed data transmission method of the automatic test equipment is provided.
Disclosure of Invention
The invention aims to provide a compressed data transmission method of automatic test equipment, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a compressed data transmission method of automatic test equipment comprises a signal acquisition module, a signal processing module, an MCU data processing module, a communication module and an upper computer, wherein the output end of the signal acquisition module is connected with the input end of the signal processing module; the transmission comprises the following steps:
s1: signal acquisition is carried out through a signal acquisition module;
s2: processing the acquired signals through a signal processing module;
s3: performing data processing on the processed signals through an MCU data processing module;
s4: the communication module uploads the data processed by the MCU data processing module to the upper computer;
s5: the upper computer distributes various control instructions.
Preferably, in step S1, the signal acquisition module acquires a signal of the target board to be measured.
Preferably, the signal processing module in step S2 is configured to filter and amplify the detected signal acquired in step S1.
Preferably, in step S3, the MCU data processing module receives the detected signal, converts the signal information into data information, performs software filtering, and performs data compression on the processed signal.
Preferably, in the step S5, the upper computer distributes various control instructions to the test module through the communication circuit.
Compared with the prior art, the invention has the beneficial effects that: under the condition of not changing the communication rate and the communication mode, a new compressed data transmission mode is adopted, so that the data transmission efficiency is greatly improved; in a fixed unit time, the upper computer (computer) receives more test data, and the test sampling frequency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a compressed data transmission method for automatic test equipment includes a signal acquisition module, a signal processing module, an MCU data processing module, a communication module, and an upper computer, where an output end of the signal acquisition module is connected to an input end of the signal processing module, an output end of the signal processing module is connected to an input end of the MCU data processing module, the MCU data processing module is connected to the communication module, and the communication module is connected to the upper computer; the transmission comprises the following steps:
s1: signal acquisition is carried out through a signal acquisition module;
s2: processing the acquired signals through a signal processing module;
s3: performing data processing on the processed signals through an MCU data processing module;
s4: the communication module uploads the data processed by the MCU data processing module to the upper computer;
s5: the upper computer distributes various control instructions.
Preferably, in step S1, the signal acquisition module acquires a signal of the target board to be measured.
Preferably, the signal processing module in step S2 is configured to filter and amplify the detected signal acquired in step S1.
Preferably, in step S3, the MCU data processing module receives the detected signal, converts the signal information into data information, performs software filtering, and performs data compression on the processed signal.
Preferably, in the step S5, the upper computer distributes various control instructions to the test module through the communication circuit.
The working principle of the invention is as follows: a signal acquisition module of the test module acquires a signal of a target board to be tested; the measured signal is filtered and amplified through the data processing circuit; the MCU receives a detected signal, converts signal information into data information, performs software filtering processing, and performs data compression processing on the processed signal; the MCU transmits the compressed data to the upper computer through a communication circuit; the upper computer distributes various control instructions to the test module through the communication circuit; under the condition of not changing the communication rate and the communication mode, a new compressed data transmission mode is adopted, so that the data transmission efficiency is greatly improved; in a fixed unit time, the upper computer (computer) receives more test data, and the test sampling frequency is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. 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 (5)
1. A transmission method for compressed data of automatic test equipment is characterized in that: the device comprises a signal acquisition module, a signal processing module, an MCU data processing module, a communication module and an upper computer, wherein the output end of the signal acquisition module is connected with the input end of the signal processing module; the transmission comprises the following steps:
s1: signal acquisition is carried out through a signal acquisition module;
s2: processing the acquired signals through a signal processing module;
s3: performing data processing on the processed signals through an MCU data processing module;
s4: the communication module uploads the data processed by the MCU data processing module to the upper computer;
s5: the upper computer distributes various control instructions.
2. The transmission method of compressed data of automatic test equipment according to claim 1, wherein: and the signal acquisition module in the step S1 acquires a signal of the target board to be measured.
3. The transmission method of compressed data of automatic test equipment according to claim 1, wherein: the signal processing module in step S2 filters and amplifies the detected signal acquired in step S1.
4. The transmission method of compressed data of automatic test equipment according to claim 1, wherein: and in the step S3, the MCU data processing module receives the detected signal, converts the signal information into data information, performs software filtering, and performs data compression on the processed signal.
5. The transmission method of compressed data of automatic test equipment according to claim 1, wherein: and in the step S5, the upper computer distributes various control instructions to the test module through the communication circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015115.XA CN112260999A (en) | 2020-09-24 | 2020-09-24 | Compressed data transmission method for automatic test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011015115.XA CN112260999A (en) | 2020-09-24 | 2020-09-24 | Compressed data transmission method for automatic test equipment |
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| Publication Number | Publication Date |
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| CN112260999A true CN112260999A (en) | 2021-01-22 |
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| CN202011015115.XA Pending CN112260999A (en) | 2020-09-24 | 2020-09-24 | Compressed data transmission method for automatic test equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6625671B1 (en) * | 1999-05-03 | 2003-09-23 | Computer Network Technology Corporation | Compression of buffered data |
| CN202268895U (en) * | 2011-05-25 | 2012-06-06 | 京信通信系统（中国）有限公司 | Data compression transmission system |
| CN107277042A (en) * | 2017-07-21 | 2017-10-20 | 中国地质大学（武汉） | A kind of method, module, device and its storage device of Signal Compression transmission |
| CN110233625A (en) * | 2019-06-21 | 2019-09-13 | 华航高科(北京)技术有限公司 | High speed signal acquires in real time and compresses storage processing system |
-
2020
- 2020-09-24 CN CN202011015115.XA patent/CN112260999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6625671B1 (en) * | 1999-05-03 | 2003-09-23 | Computer Network Technology Corporation | Compression of buffered data |
| CN202268895U (en) * | 2011-05-25 | 2012-06-06 | 京信通信系统（中国）有限公司 | Data compression transmission system |
| CN107277042A (en) * | 2017-07-21 | 2017-10-20 | 中国地质大学（武汉） | A kind of method, module, device and its storage device of Signal Compression transmission |
| CN110233625A (en) * | 2019-06-21 | 2019-09-13 | 华航高科(北京)技术有限公司 | High speed signal acquires in real time and compresses storage processing system |
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Application publication date: 20210122 |