CN113315850A - 485 communication address conflict identification method for sensor of coal mine safety monitoring system - Google Patents
485 communication address conflict identification method for sensor of coal mine safety monitoring system Download PDFInfo
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- CN113315850A CN113315850A CN202110315944.8A CN202110315944A CN113315850A CN 113315850 A CN113315850 A CN 113315850A CN 202110315944 A CN202110315944 A CN 202110315944A CN 113315850 A CN113315850 A CN 113315850A
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- 239000003245 coal Substances 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 241000668854 Howardia biclavis Species 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
- 238000000844 transformation Methods 0.000 description 1
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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 485 communication address conflict identification method for a sensor of a coal mine safety monitoring system, which comprises the following steps: 1) judging whether the sensor CPU is in cold start, if not, turning to the step 2), if so, setting a cold start mark and turning to the step 3); 2) if the ID of the equipment needs to be actively modified, setting a modified ID mark and turning to the step 3), if the ID of the equipment does not need to be modified, normally receiving a response and then interrupting the return; 3) detecting the ID of the equipment, judging whether the same ID exists, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as that of the equipment, turning to the step 4); 4) judging the detection time, and if the detection time is not up, interrupting the return; if the detection time is up, the cold start mark is cleared, and the return is interrupted after the ID mark is modified. The invention avoids 485 communication interruption of the sensor caused by address conflict and ensures safe production of a coal mine.
Description
Technical Field
The invention relates to a 485 communication address conflict identification method for a sensor of a coal mine safety monitoring system, and belongs to the technical field of safety monitoring.
Background
With the continuous expansion of coal mining scale, the gradual progress of coal mining depth and the continuous increase of coal mining equipment, huge pressure is brought to coal mine safety management. In order to master the operation state of mine equipment in time and know the change of equipment operation parameters in various environments, a safe, reliable and efficient data acquisition and information transmission system is established and is very important for equipment centralized control management. In the prior art, a 485 communication mode is generally determined for the sensors to realize digital communication for the sensors when the sensors under a mine are transmitted to a safety monitoring system through a coal mine monitoring substation. Under the 485 communication mode, address conflict can lead to two conflicting 485 devices to communicate abnormally, so that sensor data cannot be uploaded in time, and coal mine safety is affected. In order to avoid the phenomenon, automatic discrimination of address conflict is realized through a program, interruption of 485 communication of the sensor caused by the address conflict is avoided, and the method has very important significance for ensuring safety production of the coal mine.
Disclosure of Invention
The invention aims to provide a method for identifying 485 communication address conflicts of sensors in a coal mine safety monitoring system, which realizes automatic discrimination of address conflicts through programs, avoids interruption of 485 communication of the sensors caused by address conflicts, and ensures safety production of coal mines.
The purpose of the invention is realized by the following technical scheme:
a485 communication address conflict recognition method for a sensor of a coal mine safety monitoring system is disclosed, wherein the sensor does not answer a call command of a coal mine monitoring substation, and adopts an interrupt service mode, and the method comprises the following steps:
step 1) judging whether a sensor CPU is in cold start or not, if not, turning to step 2), if so, setting a cold start mark and turning to step 3);
step 2) in a state that the system is not in cold start, if the ID of the system is required to be actively modified, a modification ID mark is set and the system goes to step 3), if the ID of the system is not required to be actively modified, a call command and a response of the coal mine monitoring substation are normally received, and then the return is interrupted;
step 3) detecting the ID of the equipment, judging whether the ID is the same as the equipment, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as that of the equipment, turning to the step 4);
step 4) judging the detection time, and if the detection time is not up, interrupting the return; if the detection time is up, the cold start mark is cleared, and the return is interrupted after the ID mark is modified.
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 influences the conflict address caused by address conflict and ensuring the safety production of coal mines.
Drawings
FIG. 1 is a diagram of a sensor network architecture of the present invention;
FIG. 2 is a flow chart of a 485 communication address conflict recognition method for a coal mine safety monitoring system sensor according to the invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The structure diagram of the sensor network is shown in fig. 1, a plurality of sensors arranged under a coal mine are communicated with a coal mine monitoring substation in a 485 mode, and 485 communication interruption of the sensors is easily caused by address conflict in practical application.
The 485 communication address conflict identification method of the sensor of the coal mine safety monitoring system is shown in figure 2, the sensor does not answer the call command of the coal mine monitoring substation, adopts an interrupt service mode and comprises the following steps:
step 1) judging whether a sensor CPU is in cold start or not, if not, turning to step 2), if so, setting a cold start mark and turning to step 3);
step 2) in a state that the system is not in cold start, if the ID of the system is required to be actively modified, a modification ID mark is set and the system goes to step 3), if the ID of the system is not required to be actively modified, a call command and a response of the coal mine monitoring substation are normally received, and then the return is interrupted;
step 3) detecting the ID of the equipment, judging whether the ID is the same as the equipment, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as that of the equipment, turning to the step 4);
step 4) judging the detection time, and if the detection time is not up, interrupting the return; if the detection time is up, the cold start mark is cleared, and the return is interrupted after the ID mark is modified.
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 influences the conflict address caused by address conflict and ensuring the safety production of coal mines.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (1)
1. A485 communication address conflict recognition method for a sensor of a coal mine safety monitoring system is disclosed, wherein the sensor does not answer a call command of a coal mine monitoring substation, and adopts an interrupt service mode, and the method comprises the following steps:
step 1) judging whether a sensor CPU is in cold start, if not, turning to step 2), if so, setting a cold start mark and turning to step 3);
step 2) in a state that the device is not in cold start, if the ID of the device needs to be actively modified, setting a modification ID mark and turning to the step 3), if the ID of the device does not need 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 equipment, if so, setting a repeated ID mark, and then interrupting the return; if the ID is not the same as that of the equipment, turning to the step 4);
step 4) judging the detection time, and if the detection time is not up, interrupting the return; if the detection time is up, the cold start mark is cleared, and the return is interrupted after the ID mark is modified.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113315850A true CN113315850A (en) | 2021-08-27 |
| CN113315850B CN113315850B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001060901A (en) * | 1999-08-20 | 2001-03-06 | Matsushita Electric Ind Co Ltd | Reader-writer and controller |
| JP2005006292A (en) * | 2003-05-21 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Network system |
| US20080002735A1 (en) * | 1997-04-01 | 2008-01-03 | Paradox Security Systems Ltd. | Device network |
| CN202041950U (en) * | 2010-12-30 | 2011-11-16 | Tcl集团股份有限公司 | Anti-collision controller for RS485 bus |
| WO2012167736A1 (en) * | 2011-06-08 | 2012-12-13 | 中兴通讯股份有限公司 | Method and system for ordered identifying slave address from master-slave scene bus |
| CN107453844A (en) * | 2016-05-31 | 2017-12-08 | 宁波向往智能科技有限公司 | A kind of method and device of smart machine automatic network-building |
| 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 |
-
2021
- 2021-03-24 CN CN202110315944.8A patent/CN113315850B/en active Active
Patent Citations (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 |
| JP2005006292A (en) * | 2003-05-21 | 2005-01-06 | Matsushita Electric Ind Co Ltd | 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 |
| WO2012167736A1 (en) * | 2011-06-08 | 2012-12-13 | 中兴通讯股份有限公司 | Method and system for ordered identifying slave address from master-slave scene bus |
| CN107453844A (en) * | 2016-05-31 | 2017-12-08 | 宁波向往智能科技有限公司 | A kind of method and device of smart machine automatic network-building |
| 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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| CN113315850B (en) | 2023-05-26 |
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