CN102122155A - Power outage control method and control system for production equipment - Google Patents
Power outage control method and control system for production equipment Download PDFInfo
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- CN102122155A CN102122155A CN2010106023441A CN201010602344A CN102122155A CN 102122155 A CN102122155 A CN 102122155A CN 2010106023441 A CN2010106023441 A CN 2010106023441A CN 201010602344 A CN201010602344 A CN 201010602344A CN 102122155 A CN102122155 A CN 102122155A
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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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]
Abstract
The invention relates to a power outage control method for production equipment. The method comprises the following steps that: a site hand-held terminal sends a power outage request to a server; the server acquires a request permission instruction, acquires a state signal of detection equipment, and sends the state signal of the detection equipment to a power outage and power supply management computer; the power outage and power supply management computer acquires a permission power outage instruction and returns the permission power outage instruction to the server, and the server sends the permission power outage instruction to an electrician hand-held terminal; the electrician hand-held terminal acquires receiving confirmation information and returns the receiving confirmation information to the server, and the server sends power outage starting information to a plant computer control system; the plant computer control system instructs corresponding power distribution return circuit to cut off power, sets a breaker of the detection equipment into a no-switching-on state, and returns power outage information to the server; and the server sends the power outage information to the site hand-held terminal and the electrician hand-held terminal. By the power outage control method, the power outage efficiency can be improved and the site safety is preferably ensured.
Description
Technical field
The present invention relates to stop sending fulgurite reason field, particularly a kind of production equipment power failure control method and control system.
Background technology
In smelting process, SINTERING PRODUCTION is carried out continuously, in production and plant maintenance, unavoidably can run into the problem that equipment stops sending the fulgurite reason.There is different power failure management processes in different factories, but generally speaking, existing power failure management mostly depends on the factory management system, and is too high to people's dependency degree.
Referring to Fig. 1, existing power failure management process is shown, concrete steps are as follows:
Step S101, site operation personnel or on-the-spot tour personnel propose, and have a power failure by written application or calling application equipment, to overhaul.
Step S102, yardman receive this equipment interruption maintenance application, and record this application proposes personnel, time, sends certain equipment power failure written instructions.
Step S103, yardman notify the electrician to get the power failure ticket, and the electrician comes the yardman to locate signature to confirm to get the power failure ticket.
After step S104, electrician get the power failure ticket, remove the primary power and control power supply of switchgear building cut-out corresponding device, and list, indicate this equipment in maintenance, forbid sending in the power failure loop.
Step S105, electrician go the yardman to locate to return the power failure ticket, and the yardman confirms that to the electrician application equipment has a power failure, and confirm to list.
Step S106, yardman notify application power failure personnel, and equipment has a power failure, and can begin service work.
From above-mentioned power failure management system as can be seen, be directly connected to personal safety and device security because have a power failure, will the accomplishing exactly of the management that has a power failure stops sending the electricity application, and everyone has responsibility, has a power failure that everyone has responsibility in approval, has a power failure to carry out that everyone has responsibility; The power failure process can be reviewed; Farthest guarantee correct the power failure, to guarantee personnel and device security.But it is many that power failure system link is carried out in strictness in accordance with regulations, and the execution time that has a power failure is long, has the possibility of human errors such as departing from the middle of transmission of power failure information and the implementation.
Under a lot of situations, need during the overhaul of the equipments to stop to send electricity repeatedly, if strictness is carried out in accordance with regulations, maintainer, electrician, yardman need walk flow process repeatedly, cause the overhaul of the equipments process numerous and diverse.Under the particular case, maintainer, electrician, yardman etc. are not strict in the observation of rules in the relevant link that has a power failure, and to save the repair time, this just produces serious potential safety hazard.
Summary of the invention
Purpose of the present invention provides a kind of production equipment to stop sending electric control method, and this method can improve power failure efficient, guarantees on-the-spot safety better.
A kind of production equipment power failure of the present invention control method comprises:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask server, this power failure request comprises identity identification information and repair apparatus information;
The server authentication identity identification information, obtain the instruction that asks for permission, obtain the status signal of repair apparatus according to repair apparatus information from full factory computer control system, with the status signal of repair apparatus, have a power failure and ask acknowledge(ment) signal to send to stop sending fulgurite reason computing machine;
Stop sending fulgurite reason computing machine to obtain permission power failure instruction according to the status signal of repair apparatus, will permit the instruction that has a power failure to return server, server will be permitted to have a power failure to instruct and be sent to electrician's handheld terminal;
Electrician's handheld terminal obtains confirmation of receipt information, and confirmation of receipt information is returned server, and server begins power failure information and sends to full factory computer control system;
Full factory computer control system instructs corresponding distribution loop to have a power failure, and the isolating switch of repair apparatus is set to the No switching on state, and the power failure information of returning is to server;
Server sends the information that had a power failure to on-the-spot handheld terminal and electrician's handheld terminal.
Preferably, being located at the power failure that the on-the-spot handheld terminal of production scene sends asks server to be specially:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask Wireless Communication Equipment, Wireless Communication Equipment is sent to server by the data bus request that should have a power failure.
Preferably, acknowledge(ment) signal is asked in the status signal, the power failure that stop sending fulgurite reason computing machine to receive repair apparatus, sends the sound and light alarm signal.
Preferably, after electrician's handheld terminal receives permission power failure instruction, send sound, light or/and the vibrations alarm signal.
Preferably, this method also comprises:
Server generates power failure process form, record power failure equipments, power failure applicant, has a power failure Approved by, power failure executor and each movable time of origin.
Preferably, this method also comprises:
Whether full factory computer control system detects production equipment power-off event under the not application situation, if any, send the power failure information of illegal power failure equipments to server;
The power failure time of origin of the illegal power failure equipments of server record is sent to electrician's handheld terminal with illegal power failure equipments information and power failure time of origin;
Electrician's handheld terminal sends alarm signal.
The present invention also provides a kind of production equipment to stop sending electric control system, and this system can improve power failure efficient, guarantees on-the-spot safety better.
Electrician's handheld terminal, Wireless Communication Equipment, plant area's data bus, the server that a kind of production equipment power failure of the present invention control system, this system comprise the on-the-spot handheld terminal that is arranged on the production scene, carried by the electrician, stop sending fulgurite reason computing machine, each distribution loop and full factory computer control system;
On-the-spot handheld terminal, server is asked in the power failure that is used to send, and this power failure request comprises identity identification information and repair apparatus information;
Server, be used for the identity verification identifying information, obtain grant instruction, obtain the status signal of repair apparatus from full factory computer control system, with the status signal of repair apparatus, have a power failure and ask acknowledge(ment) signal to send to stop sending fulgurite reason computing machine according to repair apparatus information; To permit the instruction that has a power failure to send to electrician's handheld terminal; To begin power failure information and send to full factory computer control system; Send the information that had a power failure to on-the-spot handheld terminal and electrician's handheld terminal;
Stop sending fulgurite reason computing machine, be used for obtaining permission power failure instruction, will permit the instruction that has a power failure to return server according to the status signal of repair apparatus;
Electrician's handheld terminal is used to obtain confirmation of receipt information, and confirmation of receipt information is returned server;
Full factory computer control system is used to instruct corresponding distribution loop to have a power failure, and the isolating switch of repair apparatus is set to the No switching on state, and the power failure information of returning is to server.
Preferably, being located at the power failure that the on-the-spot handheld terminal of production scene sends asks server to be specially:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask Wireless Communication Equipment, Wireless Communication Equipment is sent to server by the data bus request that should have a power failure.
Preferably, acknowledge(ment) signal is asked in the status signal, the power failure that stop sending fulgurite reason computing machine to receive repair apparatus, sends the sound and light alarm signal.
Preferably, after electrician's handheld terminal receives permission power failure instruction, send sound, light or/and the vibrations alarm signal.
Compared with prior art, the present invention has the following advantages:
The present invention obtains power failure applicant's identity information by on-the-spot handheld terminal, is confirmed by server, and accomplishing to have a power failure, everyone has responsibility in application; Server receiving scheduling personnel's grant instruction, accomplishing to have a power failure, everyone has responsibility in approval; Receive the confirmation of receipt information that the electrician imports by electrician's handheld terminal, everyone has responsibility to accomplish to stop sending the electricity execution; The above-mentioned information of server record accomplishes that the power failure process can review.Like this, the present invention improves power failure efficient by the control of the power failure of existing each electronic equipment realization production equipment.Isolating switch with repair apparatus is arranged at the No switching on state simultaneously, guarantees that repair apparatus can not start under power down mode.Even guarantee that mistake is sent electricity between turn(a)round, repair apparatus can not start, and has guaranteed on-the-spot safety better.
Description of drawings
Fig. 1 is existing power failure management flow chart;
Fig. 2 is a production equipment power failure control system configuration diagram of the present invention;
Fig. 3 is production equipment power failure control system one an embodiment synoptic diagram of the present invention;
Fig. 4 is a production equipment power failure control method process flow diagram of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The present invention sets up by setting up the mutual smart electronics of a cover and the full factory computer control system examination and repair system of listing, power failure with the control production equipment, not only can reaching has a power failure applies for that everyone has responsibility, having a power failure, everyone has responsibility in approval, having a power failure, everyone has responsibility in execution, the power failure process can be reviewed, and also improves the power failure efficiency of management, avoids potential safety hazard.
Referring to Fig. 2, production equipment power failure control system framework of the present invention is shown, comprises on-the-spot handheld terminal 11, electrician's handheld terminal 12, Wireless Communication Equipment 13, plant area's data bus 14, server 15, stop sending fulgurite reason computing machine 16, each distribution loop 17 and full factory computer control system 18.
On-the-spot handheld terminal 11 is carried by production operation personnel or on-the-spot tour personnel, can be connected with Wireless Communication Equipment 13 by wireless mode; Electrician's handheld terminal 12 is carried by the shift electrician, can be connected with Wireless Communication Equipment 12 by wireless mode.
Wireless Communication Equipment 12 by data bus 14 and server 15, stop sending fulgurite reason computing machine 16 to be connected with full factory computer control system 18, carry out data interaction.
Full factory computer control system 18 is connected with each distribution loop 17, the conducting of each distribution loop 17 of may command and ending.
Certainly, the on-the-spot handheld terminal 11 of the present invention and electrician's handheld terminal 12 can be 3G mobile, and Wireless Communication Equipment 13 can be 3G Operation Server (see figure 3).
Stop sending fulgurite reason computing machine 16 to obtain permission power failure instruction, will permit the instruction that has a power failure to return server 15 according to the status signal of repair apparatus;
Electrician's handheld terminal 12 obtains confirmation of receipt information, and confirmation of receipt information is returned server 15;
The corresponding distribution loop 17 of full factory computer control system 18 instructions has a power failure, and the isolating switch of repair apparatus is set to the No switching on state, and the power failure information of returning is to server 15.
Referring to Fig. 4, production equipment power failure control method of the present invention is shown, concrete steps are as follows.
Wireless Communication Equipment 13 (as gateway) is asked in the power failure that step S401, on-the-spot handheld terminal 11 send, and Wireless Communication Equipment 13 should have a power failure by data bus 14 and ask to be sent to server 15.This power failure request comprises identity identification information and repair apparatus information.Identity identification information can be worker's trade mark of site operation personnel or on-the-spot tour personnel etc., and repair apparatus information can be sequence number, machine code or the specific numbers that needs repair apparatus.
Behind step S402, the server 15 identity verification identifying informations, obtain the instruction that asks for permission, as get access to the instruction that asks for permission, according to repair apparatus information, the status signal of the repair apparatus that server 15 is obtained from full factory computer control system 18, signal such as signal sent on-the-spot handheld terminal 11, stops sending fulgurite reason computing machine 16 and electrician's handheld terminal 12 during the state of repair apparatus, the request that has a power failure accepted, have a power failure and arrange; As not getting access to grant instruction, return the request failure signal to on-the-spot handheld terminal 11.This instruction that asks for permission can be imported by the dispatcher.
Step S403, stop sending after fulgurite reason computing machine 16 is received equipment state, the request that has a power failure is accepted, had a power failure and arranges signal, send obvious sound and light alarm, the prompting shift electrician, and obtain the permission instruction that has a power failure according to the status signal of repair apparatus, as get access to this permission instruction that has a power failure, stop sending fulgurite reason computing machine 16 will permit the instruction that has a power failure to return server 15, server 15 sends to equipment state signal, permission power failure instruction on-the-spot handheld terminal 11, stops sending fulgurite reason computing machine 16 and electrician's handheld terminal 12.As not getting access to permission power failure instruction, return the request failure signal to server 15 and on-the-spot handheld terminal 11.This permission has a power failure and instructs and can be imported by the shift electrician.This input needs checking shift electrician's identity information.
After step S404, electrician's handheld terminal 12 are received equipment state signal, permission power failure instruction, remind the electrician in modes such as sound, light, vibrations, request confirmation of receipt information, as get access to confirmation of receipt information, to order received signal to return server 15, server 15 instruction that will begin to have a power failure sends to on-the-spot handheld terminal 11, stops sending fulgurite reason computing machine 16 and full factory computer control system 18; As not getting access to confirmation of receipt information, continue to remind the shift electrician.This confirmation of receipt information is imported by the electrician.
Step S405, the corresponding distribution loop of full factory computer control system 18 instructions have a power failure, and the isolating switch with repair apparatus is arranged at the No switching on state simultaneously, guarantees that repair apparatus can not start under power down mode, and the power failure information of returning is to server 15.
After step S406, server 15 are received equipment power failure information, to on-the-spot handheld terminal 11, stop sending fulgurite reason computing machine 16, electrician's handheld terminal 12 to send the information that had a power failure.
Step S407, server 15 generates power failure process forms, record power failure equipments, power failure applicant, has a power failure Approved by, power failure executor and each movable time of origin.Form is recorded in the database as a history file.
Whether step S408, full factory computer control system 18 detection production equipments have power-off event under the not application situation, if any, full factory computer control system 18 sends the power failure information of this equipment to server 15, server 15 will this illegal power failure equipments the power failure time of origin, illegal power failure equipments information and power failure time of origin be sent to stop sending fulgurite reason computing machine 16 and electrician's handheld terminal 12, electrician's handheld terminal 12 sends alarm signal, is convenient to the electrician and disposes.
The present invention obtains power failure applicant's identity information by on-the-spot handheld terminal 11, is confirmed by server 15, and accomplishing to have a power failure, everyone has responsibility in application; Server 15 receiving scheduling personnel's grant instruction, accomplishing to have a power failure, everyone has responsibility in approval; Receive the confirmation of receipt information that the electrician imports by electrician's handheld terminal 12, everyone has responsibility to accomplish to stop sending the electricity execution; The above-mentioned information of server 15 record accomplishes that the power failure process can review.Like this, the present invention improves power failure efficient by the control of the power failure of existing each electronic equipment realization production equipment.Isolating switch with repair apparatus is arranged at the No switching on state simultaneously, guarantees that repair apparatus can not start under power down mode.Even guarantee that mistake is sent electricity between turn(a)round, repair apparatus can not start, and has guaranteed on-the-spot safety better.
The above only is a preferred implementation of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (10)
1. production equipment power failure control method is characterized in that comprising:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask server, this power failure request comprises identity identification information and repair apparatus information;
The server authentication identity identification information, obtain the instruction that asks for permission, obtain the status signal of repair apparatus according to repair apparatus information from full factory computer control system, with the status signal of repair apparatus, have a power failure and ask acknowledge(ment) signal to send to stop sending fulgurite reason computing machine;
Stop sending fulgurite reason computing machine to obtain permission power failure instruction according to the status signal of repair apparatus, will permit the instruction that has a power failure to return server, server will be permitted to have a power failure to instruct and be sent to electrician's handheld terminal;
Electrician's handheld terminal obtains confirmation of receipt information, and confirmation of receipt information is returned server, and server begins power failure information and sends to full factory computer control system;
Full factory computer control system instructs corresponding distribution loop to have a power failure, and the isolating switch of repair apparatus is set to the No switching on state, and the power failure information of returning is to server;
Server sends the information that had a power failure to on-the-spot handheld terminal and electrician's handheld terminal.
2. the method for claim 1 is characterized in that, is located at the power failure that the on-the-spot handheld terminal of production scene sends and asks server to be specially:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask Wireless Communication Equipment, Wireless Communication Equipment is sent to server by the data bus request that should have a power failure.
3. the method for claim 1 is characterized in that, acknowledge(ment) signal is asked in the status signal, the power failure that stop sending fulgurite reason computing machine to receive repair apparatus, sends the sound and light alarm signal.
4. the method for claim 1 is characterized in that, after electrician's handheld terminal receives permission power failure instruction, sends sound, light or/and the vibrations alarm signal.
5. as each described method of claim 1-4, it is characterized in that this method also comprises:
Server generates power failure process form, record power failure equipments, power failure applicant, has a power failure Approved by, power failure executor and each movable time of origin.
6. as each described method of claim 1-4, it is characterized in that this method also comprises:
Whether full factory computer control system detects production equipment power-off event under the not application situation, if any, send the power failure information of illegal power failure equipments to server;
The power failure time of origin of the illegal power failure equipments of server record is sent to electrician's handheld terminal with illegal power failure equipments information and power failure time of origin;
Electrician's handheld terminal sends alarm signal.
7. production equipment power failure control system, it is characterized in that, electrician's handheld terminal, Wireless Communication Equipment, plant area's data bus, the server that this system comprises the on-the-spot handheld terminal that is arranged on the production scene, carried by the electrician, stop sending fulgurite reason computing machine, each distribution loop and full factory computer control system;
On-the-spot handheld terminal, server is asked in the power failure that is used to send, and this power failure request comprises identity identification information and repair apparatus information;
Server, be used for the identity verification identifying information, obtain grant instruction, obtain the status signal of repair apparatus from full factory computer control system, with the status signal of repair apparatus, have a power failure and ask acknowledge(ment) signal to send to stop sending fulgurite reason computing machine according to repair apparatus information; To permit the instruction that has a power failure to send to electrician's handheld terminal; To begin power failure information and send to full factory computer control system; Send the information that had a power failure to on-the-spot handheld terminal and electrician's handheld terminal;
Stop sending fulgurite reason computing machine, be used for obtaining permission power failure instruction, will permit the instruction that has a power failure to return server according to the status signal of repair apparatus;
Electrician's handheld terminal is used to obtain confirmation of receipt information, and confirmation of receipt information is returned server;
Full factory computer control system is used to instruct corresponding distribution loop to have a power failure, and the isolating switch of repair apparatus is set to the No switching on state, and the power failure information of returning is to server.
8. system as claimed in claim 7 is characterized in that, is located at the power failure that the on-the-spot handheld terminal of production scene sends and asks server to be specially:
Be located at the power failure that the on-the-spot handheld terminal of production scene sends and ask Wireless Communication Equipment, Wireless Communication Equipment is sent to server by the data bus request that should have a power failure.
9. system as claimed in claim 7 is characterized in that, acknowledge(ment) signal is asked in the status signal, the power failure that stop sending fulgurite reason computing machine to receive repair apparatus, sends the sound and light alarm signal.
10. system as claimed in claim 7 is characterized in that, after electrician's handheld terminal receives permission power failure instruction, sends sound, light or/and the vibrations alarm signal.
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| CN2010106023441A CN102122155B (en) | 2010-12-23 | 2010-12-23 | Power outage control method and control system for production equipment |
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| CN2010106023441A CN102122155B (en) | 2010-12-23 | 2010-12-23 | Power outage control method and control system for production equipment |
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| CN102122155B CN102122155B (en) | 2012-11-21 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106339861A (en) * | 2016-10-15 | 2017-01-18 | 国网山东省电力公司寿光市供电公司 | Electric power work onsite safety control system and realization method thereof |
| CN106774098A (en) * | 2017-03-07 | 2017-05-31 | 于德芳 | One kind stops power transmission safety control system |
| CN106997181A (en) * | 2017-05-22 | 2017-08-01 | 广东天润自动化科技有限公司 | A kind of equipment safety control system and its control method |
| CN107505900A (en) * | 2017-09-21 | 2017-12-22 | 武汉钢铁有限公司 | A kind of method of remote equipment energy control |
| CN108415387A (en) * | 2018-03-19 | 2018-08-17 | 深圳迈辽技术转移中心有限公司 | A kind of safety control system and method for controlling security |
| CN108415388A (en) * | 2018-03-19 | 2018-08-17 | 深圳迈辽技术转移中心有限公司 | A kind of safety control system and method for controlling security |
| CN108490853A (en) * | 2018-03-19 | 2018-09-04 | 深圳市晶特智造科技有限公司 | A kind of security system and method for controlling security |
| CN111476929A (en) * | 2020-04-30 | 2020-07-31 | 福建联合石油化工有限公司 | Electrical equipment maintenance site safety isolation method |
| CN111953074A (en) * | 2020-08-18 | 2020-11-17 | 山信软件股份有限公司 | System and method for overhauling power outage and transmission |
| CN114159874A (en) * | 2021-09-28 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Method and device for detecting service life of filter element of water purifier and storage medium |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106339861A (en) * | 2016-10-15 | 2017-01-18 | 国网山东省电力公司寿光市供电公司 | Electric power work onsite safety control system and realization method thereof |
| CN106774098A (en) * | 2017-03-07 | 2017-05-31 | 于德芳 | One kind stops power transmission safety control system |
| CN106997181A (en) * | 2017-05-22 | 2017-08-01 | 广东天润自动化科技有限公司 | A kind of equipment safety control system and its control method |
| CN107505900A (en) * | 2017-09-21 | 2017-12-22 | 武汉钢铁有限公司 | A kind of method of remote equipment energy control |
| CN107505900B (en) * | 2017-09-21 | 2020-04-21 | 武汉钢铁有限公司 | Method for controlling energy of remote equipment |
| CN108415387A (en) * | 2018-03-19 | 2018-08-17 | 深圳迈辽技术转移中心有限公司 | A kind of safety control system and method for controlling security |
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| CN108490853A (en) * | 2018-03-19 | 2018-09-04 | 深圳市晶特智造科技有限公司 | A kind of security system and method for controlling security |
| CN111476929A (en) * | 2020-04-30 | 2020-07-31 | 福建联合石油化工有限公司 | Electrical equipment maintenance site safety isolation method |
| CN111476929B (en) * | 2020-04-30 | 2022-05-20 | 福建联合石油化工有限公司 | Electrical equipment maintenance site safety isolation method |
| CN111953074A (en) * | 2020-08-18 | 2020-11-17 | 山信软件股份有限公司 | System and method for overhauling power outage and transmission |
| CN114159874A (en) * | 2021-09-28 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Method and device for detecting service life of filter element of water purifier and storage medium |
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