CN111077877A - Test and monitored control system - Google Patents
Test and monitored control system Download PDFInfo
- Publication number
- CN111077877A CN111077877A CN201911274921.6A CN201911274921A CN111077877A CN 111077877 A CN111077877 A CN 111077877A CN 201911274921 A CN201911274921 A CN 201911274921A CN 111077877 A CN111077877 A CN 111077877A
- Authority
- CN
- China
- Prior art keywords
- test
- message
- type
- information
- monitoring system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides a test and monitoring system, which comprises a test system and a monitoring system, wherein the monitoring system can acquire test instruction information sent by the test system and test state information fed back by a test sample in real time, so that nodes for data processing can be reduced, the reliability of test data is ensured, and the test data is prevented from being leaked or lost; in addition, the monitoring system can also acquire the marking information and the testing environment information of the testing sample, so that the classification recording and the analysis processing of the final data are facilitated.
Description
Technical Field
The invention relates to the technical field of electronic product testing, in particular to a testing and monitoring system.
Background
The parts of the electronic products realize mutual communication and interaction by means of the CAN bus. The CAN supports distributed control and time-sharing control, and allows each node in the network to compete to send data to the bus in a bit-by-bit arbitration mode with a lossless structure according to the bus access priority.
Fig. 1 shows a typical test system for electronic product components, which includes a test bench 11 and a bench upper computer 12, where the test bench 11 provides a test environment (including power supply) for a test sample 13, and the bench upper computer 12 establishes a one-to-one communication with the test sample 13 based on a CAN communication protocol. The test specimen 13 receives the operation command sent from the test stage 11, and the test stage 11 receives the operation state fed back by the test specimen. Through data interaction, the working state of the product can be set according to the design working condition, and meanwhile, the running state of the product can be locally recorded and monitored on the upper computer of the test bench to judge whether the running state meets the expectation or not.
The existing real-time remote monitoring of the testing of the electronic product parts is usually realized by sending operation data to a server terminal through a rack upper computer 12, as shown in fig. 2, and this way uses a network protocol without the help of a CAN bus. Because the upper computer 12 end of the rack receives all the test data, the test data not only contains the control instruction which CAN be covered by the CAN bus and the feedback information of the product state, but also contains the feedback information of the environmental control equipment to the environmental information of the sample, the scheme CAN ensure that the monitoring system CAN obtain all the test data to the maximum extent. Meanwhile, the operation data of the product contained on the CAN is decoded locally on the upper computer of the rack, and the server terminal 14 receives the decoded information, so that the server terminal CAN conveniently analyze the data. On the other hand, however, there are some drawbacks to this implementation of remote monitoring: 1) the operation data of the test sample is sent after being processed by the upper computer of the bench, and the credibility of the data is reduced when the test is entrusted due to the uncontrollable data processing process (the risk of artificially increasing the data screening function exists); 2) part of bench upper computer software is packaged, so that the problems of great modification difficulty and high modification cost are often faced; 3) because the decoding of the CAN message is locally carried out on the bench upper computer, if a new encryption algorithm is not added in the process of transmitting data from the bench upper computer to the server terminal, plaintext information is easy to intercept, and information leakage is caused; 4) the rack upper computer is essentially a computer, so that the problems of network attack and virus attack exist, and the risks of information leakage and information loss are increased.
Disclosure of Invention
The invention aims to provide a testing and monitoring system, which aims to solve the problems that when parts of electronic products are tested, the reliability of remotely obtained data is not high, test data is easy to leak or lose and the like.
In order to solve the above technical problem, the present invention provides a testing and monitoring system, comprising: a test system and a monitoring system; wherein the content of the first and second substances,
the test system is configured to create a test environment for a test sample, send a test instruction in the form of a message and receive test state information fed back by the test sample, and send the label information of the test sample and the test environment information in the form of a message to the monitoring system;
the monitoring system is configured to acquire a first type of message representing the test instruction information and a second type of message representing the test state information, analyze a received third type of message representing the mark information according to a preset general rule to obtain the mark information, select a matched decoding file according to the mark information to analyze the first type of message, the second type of message and a received fourth type of message representing the test environment information to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data.
Optionally, in the testing and monitoring system, the testing system, the monitoring system and the test sample are respectively communicated with each other through a bus.
Optionally, in the testing and monitoring system, the monitoring system includes a message forwarding device and a server terminal; wherein the content of the first and second substances,
the message forwarding device is configured to read the first type of message and the second type of message through the bus, receive the third type of message and the fourth type of message sent by the test system through the bus, and send the first type of message, the second type of message, the third type of message and the fourth type of message to the server terminal.
The server terminal is configured to analyze the received third type of message according to a preset general rule to obtain the mark information, select a matched decoding file according to the mark information to analyze the first type of message, the second type of message and the fourth type of message to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data.
Optionally, in the test and monitoring system, the arbitration priority of the bus for the identifiers of the third type packet and the fourth type packet is smaller than the arbitration priority of the identifiers of the first type packet and the second type packet.
Optionally, in the testing and monitoring system, the testing system includes a testing bench and a bench upper computer;
the test bench is configured to create a test environment for a test sample;
the bench host computer is configured to send a test instruction and receive test state information fed back by the test sample in a message form through the bus, and send the marking information and the test environment information of the test sample to the monitoring system in a message form through the bus.
Optionally, in the test and monitoring system, the bus is a CAN bus.
Optionally, in the testing and monitoring system, the testing environment information includes an environment box temperature, an environment box humidity, a coolant temperature, and a coolant flow rate.
Optionally, in the testing and monitoring system, the label information includes a project name, a sample number, a test name, a test program, and a test system number.
Optionally, in the testing and monitoring system, the analyzing and processing of all analyzed data includes:
and marking the test state information of the whole test process of the sample by using the marking information, and further performing summary analysis on all test results with the same mark.
Optionally, in the testing and monitoring system, the analyzing and processing of all analyzed data includes: and diagnosing whether the test is abnormal or not according to the test state information, and if the abnormal condition is generated, sending a warning signal.
The test and monitoring system provided by the invention comprises: a test system and a monitoring system; the test system is configured to create a test environment for a test sample, send a test instruction in a message form, receive test state information fed back by the test sample, and send label information of the test sample and the test environment information in the message form to the monitoring system; the monitoring system is configured to acquire a first type of message representing the test instruction information and a second type of message representing the test state information, analyze a received third type of message representing the mark information according to a preset general rule to obtain the mark information, select a matched decoding file according to the mark information to analyze the first type of message, the second type of message and a received fourth type of message representing the test environment information to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data. Compared with the prior art, the method has the following advantages:
(a) the remote monitoring end can acquire test instruction information sent by the test system and test state information fed back by the test sample in real time, reduce nodes for data processing, ensure the reliability of test data and avoid the leakage or loss of the test data;
(b) the remote monitoring end can also obtain the marking information and the testing environment information of the testing sample, and is favorable for the classification recording and the analysis processing of the final data.
Drawings
FIG. 1 is a schematic diagram illustrating a conventional test system for testing components of an electronic product;
FIG. 2 is a schematic diagram of a conventional testing and monitoring system for electronic components;
fig. 3 is a schematic composition diagram of a testing and monitoring system according to an embodiment of the present invention.
Detailed Description
The test and monitoring system proposed by the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
Referring to fig. 2, the present embodiment provides a testing and monitoring system, including: a test system 101 and a monitoring system 102;
the test system 101 is configured to create a test environment for a test sample 103, send a test instruction in a form of a message, receive test state information fed back by the test sample 103, and send label information and test environment information of the test sample 103 in a form of a message to the monitoring system 102;
the monitoring system 102 is configured to acquire a first type of message representing the test instruction information and a second type of message representing the test state information, parse a received third type of message representing the tag information according to a preset general rule to obtain the tag information, select a matched decoding file according to the tag information, parse the first type of message, the second type of message and a received fourth type of message representing the test environment information to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data.
In the testing and monitoring system provided in this embodiment, the monitoring system 102 can obtain the testing instruction information sent by the testing system 101 and the testing state information fed back by the testing sample 103 in real time, so that nodes for data processing can be reduced, the reliability of test data is ensured, and the test data is prevented from being leaked or lost; in addition, the monitoring system 102 can also obtain the marking information and the testing environment information of the testing sample 103, thereby being beneficial to the classification recording and analysis processing of the final data.
Preferably, as shown in fig. 1, the test system 101, the monitoring system 102 and the test sample 103 are respectively communicated via a bus, the first type of message and the second type of message are configured to conform to a communication rule (generally defined in the dbc document for CAN protocol) specific to the test sample 103, and the third type of message and the fourth type of message that do not conform to the communication rule specific to the test sample 103, although being received by a sample node, cannot be identified. On the basis, by designing reasonable identifiers, the arbitration priority of the bus for the identifiers of the third type message and the fourth type message is smaller than the arbitration priority of the identifiers of the first type message and the second type message, so that the addition of a monitoring system has no influence on a traditional test system on the premise of not causing communication blockage.
The bus may be a CAN bus, a foundation fieldbus, a Lonworks, a DeviceNet, a PROFIBUS, a HART, a CC-Link, a WorldFIP, an INTERBUS, etc., and in view of that a conventional test system generally realizes information transmission between the test system and the test sample 103 through the CAN bus, the embodiment preferably adopts the CAN bus.
Referring to the test system of the prior art, the test system 101 of the present embodiment also includes a test stage 21 and a stage upper computer 22. Similarly, the test bench 21 is configured to create a test environment for the test sample 103, and the bench upper computer 22 is configured to send a test instruction in the form of a message through the bus and receive test state information fed back by the test sample 103; the difference is that the test system 101 of this embodiment modifies a one-to-one communication manner in the existing test system, and the bench upper computer 22 is based on a bus protocol when sending a test instruction and feeding back test state information of the test sample 103, and the test instruction information and the test state information are also acquired by the monitoring system 102; further differently, the gantry upper computer 22 is further configured to send the marking information of the test sample 103 and the test environment information to the monitoring system 102 through the bus in the form of messages.
Namely, on one hand, the one-to-one communication mode in the existing test system is modified based on a bus protocol, so that the omnibearing online monitoring of data is realized, the problems that the data reliability is reduced when the data is processed by an upper computer after the data test is finished, the reconstruction of the upper computer of the rack is difficult and high in cost, the test data is easy to leak or lose in the local decoding of messages and the like can be avoided, on the other hand, the monitoring of the test environment information and the mark information of a test sample is increased, and the final classification recording and analysis processing of all data files are facilitated.
Optionally, the monitoring system 102 of this embodiment includes a message forwarding device 23 and a server terminal 24, where the message forwarding device 23 is configured to read the first type of message and the second type of message through the bus, receive the third type of message and the fourth type of message sent by the test system 101 through the bus, and send the first type of message, the second type of message, the third type of message, and the fourth type of message to the server terminal 24, specifically, may send the messages to a server through a LAN, a WIFI, or a 4G/5G network; the server terminal 24 is configured to parse the received third type of packet according to a preset general rule to obtain the tag information, select a matched decoding file according to the tag information to parse the first type of packet, the second type of packet, and the fourth type of packet to obtain the test instruction information, the test state information, and the test environment information, and further analyze and process all the parsed data.
Or, the message forwarding device 23, besides reading the first type of message and the second type of message, receiving the third type of message and the fourth type of message, also executes parsing of all messages, and sends data obtained by parsing to the server terminal 24, so as to analyze and process the data through the server terminal 24. In theory, both the server and the message forwarding device 23 can be used for decoding without affecting the actual effect of the system. When the message forwarding device 23 has no Central Processing Unit (CPU) and no capability to perform decoding, the decoding operation can only be completed at the server terminal 24. When the message device has the capability of message decoding, the decoding operation can be performed at either the server terminal 24 or the message forwarding device 23. No matter the decoding operation is completed at the server terminal 24 or the message forwarding device 23, the full-automatic analysis can be realized without human intervention.
When the CAN bus is used for communication, the message forwarding device 23 is the CAN message forwarding device 23, and when other buses are used for communication, only the CAN message forwarding device 23 needs to be replaced by a corresponding bus forwarding device.
For convenience of description, the present embodiment describes the message forwarding device 23 by dividing it into a constituent unit of the monitoring system 102 according to functions. However, it should be understood that the message forwarding device 23 may be an independent device or an independent plug-in device, or may be integrated into the rack upper computer 22.
In combination with the test scenario of the electronic product components, the test bench 21 may include an environmental chamber, and may further include a power supply, a load, a water chilling unit, and the like, and accordingly, the test environmental information includes an environmental chamber temperature, an environmental chamber humidity, a coolant temperature, a coolant flow, and the like.
In connection with the general behavior of testing of electronic product parts, the label information may include a project name, a sample number, a test name, a test program, and a test system number. Therefore, after the server parses out all the data, the analysis processes that can be performed by the server include: and marking the test state information of the whole test process of the sample by using the marking information, and further performing summary analysis on all test results with the same mark. In addition, the analyzing and processing all the analyzed data includes: and diagnosing whether the test is abnormal or not according to the test state information, and if the abnormal condition is generated, sending a warning signal. For example, an abnormal situation is notified by sending a mail or a short message. For long-period tests, it can help to achieve fast response when unattended.
In addition, the monitoring system can also comprise intelligent equipment such as a computer, a mobile phone and the like, so that a user side can conveniently monitor the test state in real time in a movable mode through the special intelligent equipment or download the running data meeting the set conditions of the user.
The functions of the components of the testing and monitoring system provided by the embodiment can be summarized as follows:
(11) the test rig 21 provides a test environment (including providing electrical power) for the test specimen 103;
(12) the test upper computer receives and processes the output signal of the test sample 103 (the signal may include an electrical signal, an acoustic signal, an optical signal, a mechanical action, etc. depending on the type of the test sample 103);
(13) the test upper computer sends an instruction signal which can be identified by the contact point of the test sample 103 through the bus, and the signal is read by the message forwarding equipment 23 at the same time; the test sample 103 sends a signal of its own working state to the tester, and the signal is read by the message forwarding device 23 at the same time;
(14) the bench upper computer 22 sends the state variable of the test environment of the test sample 103 to the message forwarding equipment 23, and the part of the message is received by the sample node but cannot be identified;
(15) the bench upper computer 22 sends the marking information of the test sample 103 to the message forwarding device 23 through the bus, and the part of the message can be received by the sample node but cannot be identified;
(16) the server terminal 24 or the message forwarding device 23 analyzes the mark information of the test sample 103 by using a preset general rule, and then selects a matched decoding according to the mark information to decode other messages;
(17) the server terminal 24 marks the test state information of the whole test process by using the marked information sample, and performs summary analysis on all test results with the same mark.
Compared with the prior art, the advantages of the test and monitoring system provided by the embodiment can be summarized as follows:
(21) on the basis of message forwarding equipment, nodes for data processing are reduced, and the reliability of test data is ensured;
(22) modifying a one-to-one communication mode in the existing test system based on a bus protocol, and increasing data monitoring of a test environment of a test sample;
(23) the message of the marking information of the test sample is added, and because the coding rule of the marking information of the test sample can be set to be a universal form, the server terminal can extract the sample information firstly, and then selects a proper decoding rule and algorithm, so that the server terminal can conveniently perform classified recording and analysis processing on data.
In summary, the testing and monitoring system provided by the invention solves the problems that when the components of the electronic product are tested, the reliability of remotely obtained data is not high, and the test data is easy to leak or lose.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A test and monitoring system, comprising: a test system and a monitoring system; wherein the content of the first and second substances,
the test system is configured to create a test environment for a test sample, send a test instruction in the form of a message and receive test state information fed back by the test sample, and send the label information of the test sample and the test environment information in the form of a message to the monitoring system;
the monitoring system is configured to acquire a first type of message representing the test instruction information and a second type of message representing the test state information, analyze a received third type of message representing the mark information according to a preset general rule to obtain the mark information, select a matched decoding file according to the mark information to analyze the first type of message, the second type of message and a received fourth type of message representing the test environment information to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data.
2. The test and monitoring system of claim 1, wherein the test system, the monitoring system, and the test specimen each communicate via a bus.
3. The test and monitoring system of claim 2, wherein the monitoring system comprises a message forwarding device and a server terminal; wherein the content of the first and second substances,
the message forwarding device is configured to read the first type of message and the second type of message through the bus, receive the third type of message and the fourth type of message sent by the test system through the bus, and send the first type of message, the second type of message, the third type of message and the fourth type of message to the server terminal;
the server terminal is configured to analyze the received third type of message according to a preset general rule to obtain the mark information, select a matched decoding file according to the mark information to analyze the first type of message, the second type of message and the fourth type of message to obtain the test instruction information, the test state information and the test environment information, and further analyze and process all analyzed data.
4. The test and monitoring system of claim 2, wherein the bus has a lesser arbitration priority for identifiers of the third type of packet and the fourth type of packet than for identifiers of the first type of packet and the second type of packet.
5. The test and monitoring system of claim 2, wherein the test system comprises a test bench and a bench top computer;
the test bench is configured to create a test environment for a test sample;
the bench host computer is configured to send a test instruction and receive test state information fed back by the test sample in a message form through the bus, and send the marking information and the test environment information of the test sample to the monitoring system in a message form through the bus.
6. The test and monitoring system according to any one of claims 2 to 5, wherein the bus is a CAN bus.
7. The test and monitoring system of claim 1, wherein the test environment information includes ambient box temperature, ambient box humidity, coolant temperature, and coolant flow.
8. The test and monitoring system of claim 1 wherein the label information includes an item name, a sample number, a test name, a test procedure, and a test system number.
9. The test and monitoring system of claim 1, wherein the analyzing all of the parsed data comprises:
and marking the test state information of the whole test process of the sample by using the marking information, and further performing summary analysis on all test results with the same mark.
10. The test and monitoring system of claim 1, wherein the analyzing all of the parsed data comprises: and diagnosing whether the test is abnormal or not according to the test state information, and if the abnormal condition is generated, sending a warning signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274921.6A CN111077877A (en) | 2019-12-12 | 2019-12-12 | Test and monitored control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274921.6A CN111077877A (en) | 2019-12-12 | 2019-12-12 | Test and monitored control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111077877A true CN111077877A (en) | 2020-04-28 |
Family
ID=70314162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911274921.6A Pending CN111077877A (en) | 2019-12-12 | 2019-12-12 | Test and monitored control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111077877A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739463A (en) * | 2011-04-08 | 2012-10-17 | 希姆通信息技术（上海）有限公司 | Remote reliability lifetime verification and test system, and method thereof |
| CN103188117A (en) * | 2011-12-31 | 2013-07-03 | ***股份有限公司 | Device and method for information interaction server simulation testing |
| CN105306298A (en) * | 2015-10-28 | 2016-02-03 | 东风汽车公司 | Vehicle network based remote wireless testing system and testing method |
| CN106774275A (en) * | 2017-01-16 | 2017-05-31 | 湖南中车时代通信信号有限公司 | Visualize the test system and method for the control function of train operation monitoring device |
| CN107197475A (en) * | 2016-03-14 | 2017-09-22 | 重庆邮电大学 | A kind of sensing node identifier resolution method of testing and system based on multithreading |
| US20180217580A1 (en) * | 2015-10-12 | 2018-08-02 | Fisher-Rosemount Systems Inc. | Configuration in Process Plant Using I/O-Abstracted Field Device Configurations |
-
2019
- 2019-12-12 CN CN201911274921.6A patent/CN111077877A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739463A (en) * | 2011-04-08 | 2012-10-17 | 希姆通信息技术（上海）有限公司 | Remote reliability lifetime verification and test system, and method thereof |
| CN103188117A (en) * | 2011-12-31 | 2013-07-03 | ***股份有限公司 | Device and method for information interaction server simulation testing |
| US20180217580A1 (en) * | 2015-10-12 | 2018-08-02 | Fisher-Rosemount Systems Inc. | Configuration in Process Plant Using I/O-Abstracted Field Device Configurations |
| CN105306298A (en) * | 2015-10-28 | 2016-02-03 | 东风汽车公司 | Vehicle network based remote wireless testing system and testing method |
| CN107197475A (en) * | 2016-03-14 | 2017-09-22 | 重庆邮电大学 | A kind of sensing node identifier resolution method of testing and system based on multithreading |
| CN106774275A (en) * | 2017-01-16 | 2017-05-31 | 湖南中车时代通信信号有限公司 | Visualize the test system and method for the control function of train operation monitoring device |
Non-Patent Citations (1)
| Title |
|---|
| 陈海红: "《CAN总线技术与嵌入式应用研究》", 31 December 2015 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8793366B2 (en) | Method and arrangement for diagnosing networks including field bus systems | |
| US9170856B2 (en) | Message traffic interception system | |
| US20080101251A1 (en) | System, apparatus and method for mixed mode communication on a single network | |
| CN105553782B (en) | communication link test method and system | |
| CN113572726A (en) | Multi-mode network control-data plane consistency verification method and device | |
| CN107566513B (en) | Test equipment DOS environmental data acquisition method and system | |
| CN108540304B (en) | Remote acquisition monitoring system and method based on industrial big data | |
| CN113676526A (en) | Industrial data access management system and method | |
| CN113347060B (en) | Method, device and system for detecting power network fault based on process automation | |
| CN108696375B (en) | Industrial network information acquisition device, method, monitoring system and storage medium | |
| CN113905107A (en) | Method and device for acquiring point list data of industrial equipment and gateway | |
| CN117675913A (en) | Laboratory data transmission processing method, device, transmission processing system and medium | |
| CN113407469A (en) | Parameter configuration method and device, storage medium and electronic device | |
| CN111077877A (en) | Test and monitored control system | |
| CN109995782B (en) | Information processing method, device, system and computer storage medium | |
| CN110868341A (en) | In-place protection intelligent management unit testing method and device | |
| CN116647490A (en) | Aviation AFDX network data detection system | |
| CN104834587B (en) | Method and system for debugging RS-485 bus slave computer on line | |
| CN113645052B (en) | Firmware debugging method and related equipment | |
| CN107707492B (en) | Method and device for reporting and issuing message | |
| CN109756351B (en) | Automatic notification and response system for system unit state change | |
| CN107493269B (en) | Intelligent electronic equipment of transformer substation and data sending and receiving method and system thereof | |
| CN109981394B (en) | Communication method and device based on enhanced CAN bus protocol analyzer | |
| KR101453827B1 (en) | Automatic control of the integrated systems of the data processing device | |
| KR100535584B1 (en) | Method of management for broadband access network in network management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200428 |
|
| RJ01 | Rejection of invention patent application after publication |