CN113315850B - 485 communication address conflict recognition method for sensor of coal mine safety monitoring system - Google Patents
485 communication address conflict recognition method for sensor of coal mine safety monitoring system Download PDFInfo
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- CN113315850B CN113315850B CN202110315944.8A CN202110315944A CN113315850B CN 113315850 B CN113315850 B CN 113315850B CN 202110315944 A CN202110315944 A CN 202110315944A CN 113315850 B CN113315850 B CN 113315850B
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- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000004891 communication Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000012986 modification Methods 0.000 claims abstract description 4
- 230000004048 modification Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005065 mining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 241000668854 Howardia biclavis Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Selective Calling Equipment (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a method for identifying communication address conflict of a sensor 485 of a coal mine safety monitoring system, which comprises the following steps: 1) judging whether the sensor CPU is cold started or not, if not, turning to the step 2), and if so, setting a cold start mark and turning to the step 3); 2) If the device ID needs to be actively modified, setting a modification ID mark and turning to the step 3), and if the device ID does not need to be modified, normally receiving an answer and then interrupting the return; 3) Detecting the ID of the equipment, judging whether the same ID exists or not, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as the ID of the equipment, the step 4) is carried out; 4) Judging the detection time, and if the detection time is not up, interrupting and returning; if the detection time is up, the cold start flag is cleared, the ID flag is modified, and then the interrupt returns. The invention avoids the interruption of communication of the sensor 485 caused by address conflict and ensures the safe production of coal mines.
Description
Technical Field
The invention relates to a method for identifying communication address conflict of a sensor 485 of a coal mine safety monitoring system, and belongs to the technical field of safety monitoring.
Background
Along with the continuous expansion of the coal mining scale, the gradual progress of the coal mining depth and the continuous increase of coal mining equipment, great pressure is brought to the coal mine safety management. In order to timely master the running state of mining equipment and know the change of equipment running parameters in various environments, it is very important to establish a safe, reliable and efficient data acquisition and information transmission system for equipment centralized control and management. The sensors in the mine are transmitted to a safety monitoring system through a coal mine monitoring substation, digital communication is realized on the sensors, and a 485 communication mode is generally determined in the prior art. In 485 communication mode, address conflict can lead to two 485 devices of conflict abnormal communication, causes sensor data to not in time upload, influences colliery safety. In order to avoid the occurrence of the phenomenon, the automatic screening of the address conflict is realized through a program, and the interruption of the communication of the sensor 485 caused by the address conflict is avoided, so that the method has very important significance for ensuring the safe production of the coal mine.
Disclosure of Invention
The invention aims to provide a method for identifying communication address conflict of a sensor 485 of a coal mine safety monitoring system, which realizes automatic screening of address conflict through a program, avoids communication interruption of the sensor 485 caused by the address conflict and ensures coal mine safety production.
The aim of the invention is realized by the following technical scheme:
a colliery safety monitoring system sensor 485 communication address conflict identification method, the sensor does not answer the call command of the coal mine monitoring substation, adopts the mode of interrupting service, and comprises the following steps:
step 1) judging whether the sensor CPU is cold started, if not, turning to step 2), if so, setting a cold start mark and turning to step 3);
step 2) in the state of not being cold start, if the equipment ID is required to be actively modified, setting a modification ID mark and turning to step 3), if the equipment ID is not required to be actively modified, normally receiving a call command and a response of a coal mine monitoring substation, and then interrupting the return;
step 3) detecting the ID of the equipment, judging whether the ID is the same as the ID of the equipment, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as the ID of the equipment, the step 4) is carried out;
step 4) judging the detection time, and if the detection time is not up, interrupting and returning; if the detection time is up, the cold start flag is cleared and the ID flag is modified and then the interrupt is returned.
Compared with the prior art, the invention has the beneficial effects that: the invention realizes the intelligent address identification function of 485 equipment in the access communication network, thereby avoiding the normal communication of 485 equipment which directly affects the conflict address caused by address conflict and ensuring the safety production of coal mines.
Drawings
FIG. 1 is a block diagram of a sensor network of the present invention;
fig. 2 is a flowchart of a method for identifying communication address conflict of a sensor 485 of the coal mine safety monitoring system.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
The sensor network structure diagram of the invention is shown in figure 1, a plurality of sensors arranged underground coal mine communicate with the coal mine monitoring substation in 485 mode, and in practical application, the communication of the sensors 485 is easily interrupted due to address conflict.
As shown in FIG. 2, the method for identifying the communication address conflict of the sensor 485 of the coal mine safety monitoring system does not answer the call command of the coal mine monitoring substation, adopts a service interruption mode, and comprises the following steps:
step 1) judging whether the sensor CPU is cold started, if not, turning to step 2), if so, setting a cold start mark and turning to step 3);
step 2) in the state of not being cold start, if the equipment ID is required to be actively modified, setting a modification ID mark and turning to step 3), if the equipment ID is not required to be actively modified, normally receiving a call command and a response of a coal mine monitoring substation, and then interrupting the return;
step 3) detecting the ID of the equipment, judging whether the ID is the same as the ID of the equipment, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as the ID of the equipment, the step 4) is carried out;
step 4) judging the detection time, and if the detection time is not up, interrupting and returning; if the detection time is up, the cold start flag is cleared and the ID flag is modified and then the interrupt is returned.
The invention realizes the intelligent address identification function of 485 equipment in the access communication network, thereby avoiding the 485 equipment normal communication which directly influences the conflict address caused by the conflict of the address and ensuring the safety production of the coal mine.
In addition to the above embodiments, other embodiments of the present invention are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present invention.
Claims (1)
1. A colliery safety monitoring system sensor 485 communication address conflict identification method, the sensor does not answer the call command of the coal mine monitoring substation, adopts the mode of interrupting service, comprising the following steps:
step 1) judging whether the sensor CPU is cold started, if not, turning to step 2), and if so, setting a cold start mark and turning to step 3);
step 2) in the state of not being cold start, if the sensor ID is required to be actively modified, setting a modification ID mark and turning to step 3), if the sensor ID is not required to be actively modified, normally receiving a call command and a response of a coal mine monitoring substation, and then interrupting the return;
step 3) detecting the ID of the sensor, judging whether the ID is the same as the ID of the sensor, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as the ID of the sensor, the step 4) is carried out;
step 4) judging the detection time, and if the detection time is not up, interrupting and returning; if the detection time is up, the cold start flag is cleared and the ID flag is modified and then the interrupt is returned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315944.8A CN113315850B (en) | 2021-03-24 | 2021-03-24 | 485 communication address conflict recognition method for sensor of coal mine safety monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315944.8A CN113315850B (en) | 2021-03-24 | 2021-03-24 | 485 communication address conflict recognition method for sensor of coal mine safety monitoring system |
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| Publication Number | Publication Date |
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| CN113315850A CN113315850A (en) | 2021-08-27 |
| CN113315850B true CN113315850B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110315944.8A Active CN113315850B (en) | 2021-03-24 | 2021-03-24 | 485 communication address conflict recognition method for sensor of coal mine safety monitoring system |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080002735A1 (en) * | 1997-04-01 | 2008-01-03 | Paradox Security Systems Ltd. | Device network |
| JP2001060901A (en) * | 1999-08-20 | 2001-03-06 | Matsushita Electric Ind Co Ltd | Reader-writer and controller |
| JP4347745B2 (en) * | 2003-05-21 | 2009-10-21 | パナソニック株式会社 | Network system |
| CN202041950U (en) * | 2010-12-30 | 2011-11-16 | Tcl集团股份有限公司 | Anti-collision controller for RS485 bus |
| CN102821017B (en) * | 2011-06-08 | 2018-03-13 | 中兴通讯股份有限公司 | The method and system of slave addresses order identification in master-slave mode fieldbus |
| CN107453844B (en) * | 2016-05-31 | 2021-01-01 | 宁波向往智能科技有限公司 | Method and device for automatically networking intelligent equipment |
| CN107612804A (en) * | 2017-10-31 | 2018-01-19 | 山东智造时代电气有限公司 | Intelligent substation RS485 mirror image hubs |
| CN108194144A (en) * | 2017-12-28 | 2018-06-22 | 天地（常州）自动化股份有限公司 | Sensor address repeats identification and alarm method in a kind of coal mine safety monitoring system |
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