CN109165129A - Serial communication test device - Google Patents
Serial communication test device Download PDFInfo
- Publication number
- CN109165129A CN109165129A CN201811017633.8A CN201811017633A CN109165129A CN 109165129 A CN109165129 A CN 109165129A CN 201811017633 A CN201811017633 A CN 201811017633A CN 109165129 A CN109165129 A CN 109165129A
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- communication signal
- microprocessing unit
- indicator light
- signal acquisition
- instruction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/26—Functional testing
- G06F11/273—Tester hardware, i.e. output processing circuits
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
This application discloses a kind of serial communication test devices.Include: communication signal acquisition device, is configured to obtain the communication signal that need to test serial ports and communication signal is transmitted to microprocessing unit；Microprocessing unit is connect with level converter, and whether the communication for being configured to judge to test serial ports is normal；And instruction device, wherein instruction device includes, first indicator light, the circuit connection of control command is sent with microprocessing unit, and the first indicator light issues instruction when control command meets predetermined condition, and second indicator light, the circuit connection that need to test the communication signal of serial ports is received with microprocessing unit, and the second indicator light issues instruction when communication signal meets predetermined condition.
Description
Technical field
This application involves serial communication fields, in particular to a kind of serial communication test device.
Background technique
Serial communication is tested in the prior art, frequently with software test, it may be assumed that pacify the software for being used to test serial communication
Mounted in computer-internal, different serial ports corresponds to different numbers, after the serial ports number that selection needs to detect, is sent by check and correction
Whether the content of area and reception area is consistent, determines whether the communication of serial ports is normal.
The concrete operations of software test are complex, need first to be configured software parameter, later by sending area's hair
Address code and performance data code will be divided into for a frame traffic data according to communication protocol when data by sending, and complete a frame traffic data
Transmission successively to send realization twice, furthermore send address code in switching and when performance data code, will first close serial ports,
Check bit is set, opens serial ports again when sending.And the serial port debugger of different editions may send data function code
Call format is had any different.For do not know about send content input format and each serial ports number personnel operate when exist compared with
Big difficulty.
It is high for above-mentioned existing serial communication measuring technology operation difficulty and cannot timely and effective detection serial communication shape
The problem of condition, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of serial communication test devices, at least to solve existing serial communication measuring technology
Operation difficulty it is high and cannot timely and effective detection serial communication situation the technical issues of.
According to an aspect of an embodiment of the present invention, a kind of serial communication test device is provided, comprising: communication signal obtains
Device is taken, be configured to obtain the communication signal that need to test serial ports and communication signal is transmitted to microprocessing unit；Microprocessing unit,
It is connect with communication signal acquisition device, is configured to judge whether the communication that need to test serial ports is normal and judges by microprocessing unit
Whether the control instruction for being sent to communication signal acquisition device sends normally；And instruction device, wherein instruction device includes
One indicator light sends the circuit connection of control command with microprocessing unit, and when control command meets the first predetermined condition the
One indicator light issues instruction and the second indicator light, and the electricity of the communication signal that need to test serial ports is received with microprocessing unit
Road connection, and the second indicator light issues instruction when communication signal meets the second predetermined condition.
Optionally, communication signal acquisition device includes: signal acquisition probe and level converter, and wherein signal acquisition is visited
Needle is connect with level converter, is configured to obtain the communication signal that need to test serial ports；And level converter is obtained with signal
It takes probe to connect with microprocessing unit, is configured to be converted into the serial communication signal that signal acquisition probe obtains to be suitble to micro process
The level signal that unit is handled.
Optionally, the serial communication signal that signal acquisition probe obtains comprises at least one of the following: RS232, RS485, TTL
And RS422.
Optionally, further include reset start button, connect with microprocessing unit, for control serial communication test device into
The operation of row system reset and starting.
Optionally, the first indicator light and the second indicator light all use LED light.
Optionally, further include power supply device, connect with microprocessing unit, for being microprocessing unit, instruction device and leading to
It interrogates signal acquisition device and electric power is provided.
Optionally, power supply device is powered using battery.
In embodiments of the present invention, by accessing the communication information of interface to be tested and by microprocessing unit to above-mentioned logical
News information is judged, has been reached fast and effective and has been judged the whether normal purpose of serial communication state, to pass through setting two
Display lamp instructs the state of transmission and command reception to respectively represent, it will be appreciated that it is tested to reach judgement for the state of tested device
Serial ports and the whether normal purpose of the data flow interaction mode of serial communication test device., and then solve existing serial communication
Measuring technology operation difficulty it is high and cannot timely and effective detection serial communication situation the technical issues of.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the serial communication test device according to the embodiment of the present disclosure；And
Fig. 2 is the work flow diagram of the serial communication test device according to the embodiment of the present disclosure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorizing specification
A part.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, rather than
As limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further discussed.
Embodiment 1
Fig. 1 shows the structural schematic diagram of the serial communication test device according to the embodiment of the present disclosure.
Refering to what is shown in Fig. 1, this embodiment describes a kind of serial communication test devices, comprising: communication signal acquisition device
10, it is configured to obtain the communication signal that need to test serial ports and communication signal is transmitted to microprocessing unit 11；Microprocessing unit 11,
It is connect with communication signal acquisition device 10, is configured to judge whether the communication that need to test serial ports is normal and judges by micro process list
It is normal whether member 11 to the system instruction of communication signal acquisition device 10 sends；And instruction device 13, wherein instruction device includes
One indicator light 131 sends the circuit connection of control command with microprocessing unit 11, and when control command meets the first predetermined condition
When the first indicator light 131 issue instruction and the second indicator light 132, the communication of serial ports need to be tested by receiving with microprocessing unit 11
The circuit connection of signal, and the second indicator light 132 issues instruction when communication signal meets the second predetermined condition.
Wherein, whether the first predetermined condition refers to normal in the data stream transmitting for reading the order of microprocessing unit 11, first
Indicator light 131 is based on the first predetermined condition and issues corresponding instruction；It is micro- that second predetermined condition refers to that the serial ports of test system is responded
Whether the data flow feedback that processing unit 11 is ordered is normal, and the second indicator light 132 is based on the second predetermined condition and issues finger accordingly
Show.
It should be noted that there are two kinds of flows in the identification bus of serial communication test device described in the present embodiment,
It is respectively used to order and responds order.Such as: controlling party can send commands to controlled instrument in modbus agreement, be controlled instrument meeting
The order of controlling party is responded, the data in the two directions are all to carry out data exchange by serial ports, or in h212 ring
It protects in agreement, when controller issues the order of reading instrument real time data to be measured, then instrument to be measured can respond real time data to control
Device processed.In addition, different types of serial ports has different data flows, and such as: RS232, TTL232 and RS422 are transmitting-receiving separation
, having and special sends and receives route, wherein the first indicator light 131 is used to show the data transmission state on transmitting line,
Second indicator light 132 is used to show data transmission state in receiving circuit, when sending and receiving the data stream transmitting on route
When normal, the first indicator light 131 is shown in red, and the second indicator light 132 is shown in green；And the serial ports of RS485 is at one
Data are sended and received simultaneously on route, then being directed to such serial ports, the first indicator light 131 and the second indicator light 132 can simultaneously
It lights.
So that two display lamps are arranged to respectively represent the state of instruction transmission and command reception, it will be appreciated that tested dress
The state set, such as: data line is connected to two equipment, and the indicator light for only representing sending direction is lighted, and command reception side
To indicator light without display, then show that instruction sends normal and unresponsive state, from and equipment go wrong.
The serial communication test device of the present embodiment introduction need to test serial ports by the acquisition of communication signal acquisition device 10
Communication signal is simultaneously inputted microprocessing unit 11, and the circuit reading order for sending control command is judged by microprocessing unit 11
When state meets the first predetermined condition, the first indicator light 131 issues corresponding instruction, and when the circuit for receiving serial communication signal
When responding state the second predetermined condition of satisfaction of order, the second indicator light 132 issues corresponding instruction, thus by above-mentioned simple
Operation can reach the whether normal purpose of data flow interaction mode for judging tested serial ports and serial communication test device.
Further, communication signal acquisition device 10 includes: signal acquisition probe 101 and level converter 102,
In, signal acquisition probe 101 is connect with level converter 102, is configured to obtain the communication signal that need to test serial ports；And electricity
Flat turn changing device 102 is connect with signal acquisition probe 101 and microprocessing unit 11, is configured to obtain signal acquisition probe 101
Serial communication signal be converted into being suitble to the level signal that is handled of microprocessing unit 11.
Wherein, signal acquisition probe 101 is elastic probe, needs Continued depression elastic probe in use process, to guarantee
Continue with the continuous contact of serial ports to be measured and obtaining, stable serial communication signal；TTL, RS-232, RS-485 and RS422's
The signal level value of interface is different, it is therefore desirable to which level converter 102, which is converted to the level value of above-mentioned signal, is suitble to this reality
Apply the level value that microprocessing unit 11 is handled described in example.
To which serial ports need to be tested with the use of available by signal acquisition probe 101 and level converter 102
Communication signal and the communication signal is converted into the level signal that suitable microprocessing unit 11 is handled.
Further, the serial communication signal that signal acquisition probe 101 obtains comprises at least one of the following: RS232,
RS485, TTL and RS422.
Further, further include resetting start button 14, connect with microprocessing unit 11, for controlling serial communication test
The operation of device progress system reset and starting.
Wherein, before the start-up operation of serial communication test device, it need to trigger first and reset start button 14, serial ports is tested
The system of device is resetted, i.e., restores system to original state, serial communication test device starts and starts to test later
Work.In addition, serial communication test pen continues working 2 minutes will automatic shutdown after starting resets start button 14.
To the operation for controlling reset and the starting of serial communication test device by resetting start button 14.
Further, the first indicator light 131 and the second indicator light 132 all use LED light.
Wherein, when the data stream transmitting for reading the order of microprocessing unit 11 is normal, the first indicator light 131 is shown as red
Lamp；When read data stream transmitting that microprocessing unit 11 is ordered it is abnormal when, the first indicator light 131 not bright light 132；Test system
Serial ports respond microprocessing unit 11 order data flow feedback it is normal when, the second indicator light 132 is shown as green light；Test system
Serial ports respond data flow feedback that microprocessing unit 11 is ordered it is abnormal when, the second indicator light 132 not bright light.Furthermore first refers to
Show that lamp 131 and 132 lighting time of the second indicator light are all 1 second.
Further, serial communication test device described in the present embodiment further includes power supply device 15, with microprocessing unit
11 connections, for providing electric power for microprocessing unit 11, instruction device 13 and communication signal acquisition device 10.
To which power supply device 15 ensure that the power supply of serial communication test device.
Further, power supply device 15 is powered using battery.
To which serial communication test device solves serial communication test device power supply by self-powered mode
The problem of.
Fig. 2 shows the work flow diagrams of serial communication test device described in the embodiment of the present disclosure.
With reference to Fig. 2, the workflow of serial communication test device described in the present embodiment is further described.
S202: starting is resetted.By manipulation reset start key 14 realize to the system reset of serial communication test device and
Starting is prepared for serial ports test.
S204: judge whether the instruction of microprocessing unit 11 is sent normal.
Microprocessing unit 11 sends the control instruction for obtaining serial communication signal to be measured to communication signal acquisition device 10, micro-
Processing unit 11 detects the transmission state of the control instruction, if the control instruction is correct by the device where serial ports to be measured
It reads, then enters step S208, if the control instruction is not read correctly by the device where serial ports to be measured, enter step 206.
Need to contact signal acquisition probe 101 with the serial ports that need to be tested during this, and Continued depression probe, with guarantee serial ports to be measured and
Signal communication between serial communication pen is lasting, stable, it should be noted that serial communication test device described in the present embodiment
The rs 232 serial interface signal of the plurality of level such as RS232, RS485, TTL and RS422 can be tested, in addition, serial communication test device
Every 15 seconds primary with serial communication to be tested, to periodically acquire the communication signal of serial ports to be tested.
S206: the first indicator light 131 is without instruction.The operation of " the first indicator light 131 is without instruction " is first in the present embodiment
The not bright light of indicator light 131.
S208: the first indicator light 131 makes corresponding instruction.In the present embodiment " the first indicator light 131 makes corresponding instruction "
Operation be that the first indicator light 131 is shown in red and continue bright light 1 second.
S210: judge whether serial ports to be measured responds instruction normal.
Level converter 102 carries out voltage conversion to the input signal of serial ports to be tested, is converted to suitable for micro- place
The level signal that unit 11 is handled is managed, microprocessing unit 11 handles above-mentioned level signal later, judges whether it meets
Condition, it may be assumed that microprocessing unit 11 detects the data input direction of serial ports to be measured with the presence or absence of echo message, if having detected response
Information then enters step S212, if echo message is not detected, enters step S214.
S212: the second indicator light 132 is without instruction.The operation of " the second indicator light 132 is without instruction " is second in the present embodiment
The not bright light of indicator light 132.
S214: the second indicator light 132 makes corresponding instruction.In the present embodiment " the second indicator light 132 makes corresponding instruction "
Operation be that the second indicator light 132 is shown in green and continue bright light 1 second.
S216: whether judge in predetermined time serial ports test device without operation.After instruction device 13 indicates, if pre-
(the present embodiment will be set as 1 minute the predetermined time) serial communication test device without operation, then enters step S218 in fixing time；
If serial communication test device currently has in operation progress, continue current operation.
S218: shutdown.Device shutdown restarts work by start key 14 is resetted when lower task again.
The serial communication test device of the present embodiment introduction need to test serial ports by the acquisition of communication signal acquisition device 10
Communication signal is simultaneously inputted microprocessing unit 11, and the circuit reading order for sending control command is judged by microprocessing unit 11
When state meets the first predetermined condition, the first indicator light 131 issues corresponding instruction, and when the circuit for receiving serial communication signal
When responding state the second predetermined condition of satisfaction of order, the second indicator light 132 issues corresponding instruction, to pass through setting two
Display lamp instructs the state of transmission and command reception to respectively represent, it will be appreciated that it is tested to reach judgement for the state of tested device
The serial ports of device and the whether normal purpose of the data flow interaction mode of serial communication test device.
Scheme disclosed in above-described embodiment, by accessing the communication information of interface to be tested and by microprocessing unit to upper
It states communication information to be judged, has reached fast and effective and judged the whether normal purpose of serial communication state, to realize only
By serial ports connection and the instruction of viewing lamp is it may determine that the whether normal technical effect of the communication state of serial ports, in turn
Solve existing serial communication measuring technology operation difficulty it is high and cannot the technology of timely and effective detection serial communication situation ask
Topic.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
In addition, above-mentioned the embodiment of the present application serial number is for illustration only, do not represent the advantages or disadvantages of the embodiments.In the upper of the application
It states in embodiment, all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, may refer to it
The associated description of his embodiment.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of serial communication test device, characteristic are, comprising:
Communication signal acquisition device is configured to obtain the communication signal that need to test serial ports and the communication signal is transmitted to micro- place
Manage unit；
Microprocessing unit is connect with the communication signal acquisition device, and whether the communication for being configured to judge to test serial ports is normal
And judge whether the control instruction that the communication signal acquisition device is sent to by the microprocessing unit sends normally；And
Instruction device, wherein the instruction device includes,
First indicator light is connect with the microprocessing unit, and when the control instruction meets the first predetermined condition described in the
One indicator light issues instruction, and
Second indicator light is connect with the microprocessing unit, and when the communication signal that need to test serial ports meets the second predetermined condition
The second indicator light of Shi Suoshu issues instruction.
2. the apparatus according to claim 1, which is characterized in that the communication signal acquisition device includes: that signal acquisition is visited
Needle and level converter, wherein
The signal acquisition probe is connect with the level converter, is configured to obtain the communication signal that need to test serial ports；With
And
The level converter is connect with the signal acquisition probe and microprocessing unit, is configured to visit the signal acquisition
The serial communication signal that needle obtains is converted into the level signal for being suitble to microprocessing unit to be handled.
3. the apparatus of claim 2, which is characterized in that the serial communication signal packet that the signal acquisition probe obtains
Include following at least one: RS232, RS485, TTL and RS422.
4. the apparatus according to claim 1, which is characterized in that further include resetting start button, with the microprocessing unit
Connection carries out the operation of system reset and starting for controlling serial communication test device.
5. the apparatus according to claim 1, which is characterized in that first indicator light and second indicator light all use
LED light.
6. the apparatus according to claim 1, which is characterized in that further include power supply device, is connect with the microprocessing unit,
For providing electric power for the microprocessing unit, the instruction device and the communication signal acquisition device.
7. device according to claim 6, which is characterized in that the power supply device is powered using battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811017633.8A CN109165129A (en) | 2018-09-01 | 2018-09-01 | Serial communication test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811017633.8A CN109165129A (en) | 2018-09-01 | 2018-09-01 | Serial communication test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109165129A true CN109165129A (en) | 2019-01-08 |
Family
ID=64893761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811017633.8A Pending CN109165129A (en) | 2018-09-01 | 2018-09-01 | Serial communication test device |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110196810A (en) * | 2019-05-30 | 2019-09-03 | 浪潮商用机器有限公司 | A kind of information collecting device and method |
| CN112367225A (en) * | 2020-11-12 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Serial port output information feedback monitoring system and method |
| CN113886167A (en) * | 2021-08-20 | 2022-01-04 | 西安易朴通讯技术有限公司 | Detection circuit and detection device |
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| CN204945293U (en) * | 2015-08-31 | 2016-01-06 | 深圳市创维电器科技有限公司 | A kind of serial port detection circuit of access device and test fixture |
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| CN201536406U (en) * | 2009-09-15 | 2010-07-28 | 王晓庆 | Handheld minitype serial port and 485 data transmit-receive device |
| CN202267955U (en) * | 2011-10-09 | 2012-06-06 | 天津市电力公司 | Serial port tester with adjustable communication speed rate |
| CN204481826U (en) * | 2014-11-26 | 2015-07-15 | 太原太航科技有限公司 | Network serial port tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110196810A (en) * | 2019-05-30 | 2019-09-03 | 浪潮商用机器有限公司 | A kind of information collecting device and method |
| CN112367225A (en) * | 2020-11-12 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Serial port output information feedback monitoring system and method |
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Application publication date: 20190108 |