CN205211111U - Security protection monitored control system of computer room - Google Patents
Security protection monitored control system of computer room Download PDFInfo
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- CN205211111U CN205211111U CN201521075990.1U CN201521075990U CN205211111U CN 205211111 U CN205211111 U CN 205211111U CN 201521075990 U CN201521075990 U CN 201521075990U CN 205211111 U CN205211111 U CN 205211111U
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Abstract
Security protection monitored control system of computer room belongs to the computer monitoring field, the utility model discloses a solve the problem that current computer lab security protection system can not take all kinds of sensing parameters and illegal personnel information into account comprehensively. The utility model discloses a computer lab monitor terminal and surveillance center, computer lab monitor terminal includes that temperature sensor, humidity transducer, smoke transducer, AD converting circuit, singlechip, heat are released electric observation circuit, infrared camera, are patrolled and examined focus APP, illegal open the door detection circuitry, display screen, memory and on -the -spot alarm, temperature, temperature and smoke signal send for the singlechip, and show on the display screen, heat is released electric observation circuit and is used for monitoring whether someone process of computer lab gate to open thereupon and stop recording of infrared camera machine, and the storage. Patrol and examine focus APP and read the card of patrolling and examining that the personnel of patrolling and examining handed, the detection circuitry that illegally opens the door monitors illegal door opening signal, then scene and remote alarm.
Description
Technical field
The utility model relates to a kind of safety defense monitoring system, belongs to computer monitoring field.
Background technology
Machine room generally refers to telecommunications, Netcom, mobile, two-wire, electric power and government or enterprise etc., service device, for the place that user and employee provide IT to serve, tens little square meters, a general placement twenty or thirty rack, large square meters up to ten thousand place thousands of racks, even more, usually various server and minicomputer is placed inside machine room, such as IBM minicomputer, HP minicomputer, SUN minicomputer, etc., the temperature and humidity of machine room and antistatic countermeasure have strict requirement, amateur project personnel generally can not enter, server in machine room runs a lot of business, the multimedia message of such as movement, short message, talk business etc.Machine room is very important, and without machine room, work, life all can be subject to extreme influence, so each machine room will have professional to manage, guarantee business is normally run.
Just because of the importance of machine room, so need to arrange watch-dog, whole machine room is monitored, existing watch-dog is the smog information etc. of temperature, humidity, monitoring fire in monitoring room mainly, when internal temperature is too high, can have influence on the duty of server, namely watch-dog sends the Surveillance center of alarm to far-end, when breaking out of fire around, smoke signal can react to some extent, sends to Surveillance center to know in time; Monitoring parameter when this often has people to go to work in office building, when After Hours, can through machine room when only having security personnel to patrol and examine, and prior art comprehensively can not be monitored unauthorized person and whether enters machine room, existing machine room safety-protection system can not take all kinds of parameter sensing and unauthorized person information into account comprehensively.
Summary of the invention
Comprehensively the utility model object to take the problem of all kinds of parameter sensing and unauthorized person information into account, provides a kind of safety defense monitoring system of computer room.
The safety defense monitoring system of computer room described in the utility model, it comprises machine room monitor terminal and Surveillance center; Machine room monitor terminal and Surveillance center carry out data interaction, and the warning message of machine room monitor terminal sends to Surveillance center in real time;
Machine room monitor terminal comprises temperature sensor, humidity sensor, smoke transducer, A/D change-over circuit, single-chip microcomputer, pyroelectricity observation circuit, infrared camera, patrols and examines focus APP, illegally open the door testing circuit, display screen, storer and onsite alarming device;
Temperature sensor, humidity sensor and smoke transducer are arranged on machine room indoor;
Pyroelectricity observation circuit, infrared camera and patrol and examine focus APP and be arranged on machine room outdoor;
Illegal enabling testing circuit is arranged on machine room door opening and closing place;
The temperature signal output terminal of temperature sensor is connected with the temperature analog signal input end of A/D change-over circuit; The temperature digital signal output part of A/D change-over circuit is connected with the temperature digital signal input part of single-chip microcomputer;
The moisture signal output terminal of humidity sensor is connected with the humidity simulation signal input part of A/D change-over circuit; The humidity digital signal output end of A/D change-over circuit is connected with the humidity digital signal input end of single-chip microcomputer;
The smoke signal output terminal of smoke transducer is connected with the smoke simulation signal input part of A/D change-over circuit; The smog digital signal output end of A/D change-over circuit is connected with the smog digital signal input end of single-chip microcomputer;
The parameter display signal output part of single-chip microcomputer is connected with the display input end of display screen;
Whether pyroelectricity observation circuit is used for monitoring machine door mouth people's process, and the start and stop recording shooting instruction output end of pyroelectricity observation circuit is recorded with the start and stop of infrared camera command input of making a video recording and is connected; The recorded video data output end of infrared camera is connected with the recorded video data input pin of single-chip microcomputer; The video data transmission end of single-chip microcomputer is connected with the video data transmission end of storer;
Patrol and examine focus APP read patrol officer hand-held patrol and examine card;
The illegal enabling signal output terminal of illegal enabling testing circuit is connected with the illegal enabling signal input end of single-chip microcomputer; The alarm command output terminal of single-chip microcomputer is connected with the alarm command input end of onsite alarming device;
The terminal data of single-chip microcomputer and warning message and Surveillance center carry out alternately.
Advantage of the present utility model: the safety defense monitoring system of computer room described in the utility model takes into account many aspects, first aspect: the parameter sensing information such as Real-time Collection temperature, humidity, smog, once there be exception, not only onsite alarming, and the very first time abnormal information is sent to Surveillance center.
Second aspect: after work, carry out to prevent unauthorized person, press switch S, start the function of monitoring video, the image of infrared camera scan sends to Surveillance center in real time, but do not record under normal circumstances, go to store information useless to avoid taking a large amount of internal memory, when detecting that doorway has people close, just start shooting recording function, stop recording after personnel leave, and the video of recording is stored away, using as evidence for follow-up investigation, this monitor mode is flexible, not only recorded the personal information through machine room, and save a large amount of internal memories, also only required video segment should be found with a small amount of time during investigation and evidence collection.While recording personnel signal, the information that sends, to Surveillance center, reminds Surveillance center now to have personnel to pass through in machine room doorway.
The third aspect: when security personnel patrol and examine through machine room, can be placed on hand-held card of patrolling and examining to patrol and examine on focus APP and check card, then now, record shooting, do not send prompting message to Surveillance center, to alleviate the workload of Surveillance center though start.
Fourth aspect: illegally opened once monitor machine room door, carry out onsite alarming and remote alarms simultaneously.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the safety defense monitoring system of computer room described in the utility model;
Fig. 2 is the physical circuit figure of pyroelectricity observation circuit.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the safety defense monitoring system of computer room described in present embodiment, it comprises machine room monitor terminal and Surveillance center; Machine room monitor terminal and Surveillance center carry out data interaction, and the warning message of machine room monitor terminal sends to Surveillance center in real time;
Machine room monitor terminal comprises temperature sensor 1, humidity sensor 2, smoke transducer 3, A/D change-over circuit 4, single-chip microcomputer 5, pyroelectricity observation circuit 6, infrared camera 7, patrols and examines focus APP8, illegal enabling testing circuit 9, display screen 10, storer 11 and onsite alarming device 12;
Temperature sensor 1, humidity sensor 2 and smoke transducer 3 are arranged on machine room indoor;
Pyroelectricity observation circuit 6, infrared camera 7 and patrol and examine focus APP8 and be arranged on machine room outdoor;
Illegal enabling testing circuit 9 is arranged on machine room door opening and closing place;
The temperature signal output terminal of temperature sensor 1 is connected with the temperature analog signal input end of A/D change-over circuit 4; The temperature digital signal output part of A/D change-over circuit 4 is connected with the temperature digital signal input part of single-chip microcomputer 5;
The moisture signal output terminal of humidity sensor 2 is connected with the humidity simulation signal input part of A/D change-over circuit 4; The humidity digital signal output end of A/D change-over circuit 4 is connected with the humidity digital signal input end of single-chip microcomputer 5;
The smoke signal output terminal of smoke transducer 3 is connected with the smoke simulation signal input part of A/D change-over circuit 4; The smog digital signal output end of A/D change-over circuit 4 is connected with the smog digital signal input end of single-chip microcomputer 5;
The parameter display signal output part of single-chip microcomputer 5 is connected with the display input end of display screen 10;
Whether pyroelectricity observation circuit 6 has people's process for monitoring machine door mouth, and the start and stop recording shooting instruction output end of pyroelectricity observation circuit 6 is recorded with the start and stop of infrared camera 7 command input of making a video recording and is connected; The recorded video data output end of infrared camera 7 is connected with the recorded video data input pin of single-chip microcomputer 5; The video data transmission end of single-chip microcomputer 1 is connected with the video data transmission end of storer 11;
Patrol and examine focus APP8 read patrol officer hand-held patrol and examine card;
The illegal enabling signal output terminal of illegal enabling testing circuit 9 is connected with the illegal enabling signal input end of single-chip microcomputer 5; The alarm command output terminal of single-chip microcomputer 5 is connected with the alarm command input end of onsite alarming device 12;
The terminal data of single-chip microcomputer 5 and warning message and Surveillance center carry out alternately.
What temperature sensor 1, humidity sensor 2 and smoke transducer 3 gathered is simulating signal, single-chip microcomputer 5 is sent to again after all carrying out analog to digital conversion by A/D change-over circuit 4, these heat transfer agents show on the display screen 10 in real time, once there be which heat transfer agent abnormal, then reported to the police by onsite alarming device 12, near reminding, staff notes, this abnormal information is sent to Surveillance center simultaneously.
When After Hours, except security personnel and Surveillance center operator on duty, staff near machine room withdraws, now, except temperature sensor 1, humidity sensor 2 and smoke transducer 3 are also normal to be monitored outside related transducer information, start the monitoring function of pyroelectricity observation circuit 6, people is had through out-of-date when pyroelectricity observation circuit 6 monitors machine room doorway, start infrared camera 7 and carry out recording shooting, and this information is stored in local storer 11, send to Surveillance center's instruction simultaneously, remind operator on duty, machine room has people to pass through, operator on duty judges whether this person is unauthorized person.
When people leaves machine room doorway, then stop recording, which save a large amount of internal memories, it also avoid and record a large amount of useless video information.
A kind of situation is also had to be that security personnel patrol and examine through machine room doorway, hand-held card of patrolling and examining of ensuring public security can carry out punching operation patrolling and examining on focus APP8, in this case, and still recorded video information, but do not send prompting message to Surveillance center, to alleviate the workload of Surveillance center operator on duty.
Whether illegal enabling testing circuit 9 detects machine room door has and illegally enters behavior, once discovery, onsite alarming immediately, the security personnel's machine room near prompting has fortuitous event to occur, this information very first time is sent to Surveillance center simultaneously, remind the operator on duty of Surveillance center to process.
Embodiment two: present embodiment is described below in conjunction with Fig. 2, present embodiment is described further embodiment one, and pyroelectricity observation circuit 6 comprises LN074B pyroelectric infrared sensor, switch S, sensor signal processing circuit, time-delay start-up circuit and start and stop and records shooting instruction output circuit; LN074B pyroelectric infrared sensor is arranged on computer room outdoors;
Sensor signal processing circuit comprises amplifier A1, amplifier A2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, slide rheostat R6, resistance R14, resistance R16, electrochemical capacitor C1, electric capacity C2, electrochemical capacitor C3, electrochemical capacitor C4, electrochemical capacitor C7, electric capacity C8, NPN triode VT1 and NPN triode VT2;
Time-delay start-up circuit comprises resistance R15, resistance R17, resistance R18, electrochemical capacitor C9 and NPN triode VT3;
Start and stop are recorded shooting instruction output circuit and are comprised NE555 time-base integrated circuit, resistance R19, electrochemical capacitor C10, electrochemical capacitor C11 and electrochemical capacitor C12;
One end of+5V direct supply connecting valve S, the other end of switch S is the positive pole of one end of the positive pole power supply terminal of the stiff end of the positive pole of the positive pole power supply terminal of one end of contact resistance R3, amplifier A1, electrochemical capacitor C7, slide rheostat R6, amplifier A2, resistance R14, electrochemical capacitor C9, one end of resistance R19,4 pin of NE555 time-base integrated circuit and 8 pin simultaneously;
The other end of resistance R3 is one end of contact resistance R1, the positive pole of electrochemical capacitor C1 and the D pin of LN074B pyroelectric infrared sensor simultaneously; The minus earth of electrochemical capacitor C1; The S pin of LN074B pyroelectric infrared sensor connects the positive pole of electrochemical capacitor C3, and the negative pole of electrochemical capacitor C3 connects one end of electric capacity C2, one end of resistance R2 and the base stage of NPN triode VT1 simultaneously; The collector of the other end of electric capacity the C2 other end of contact resistance R1, the other end of resistance R2, the in-phase input end of amplifier A1 and NPN triode VT1 simultaneously; The inverting input of amplifier A1 is one end of contact resistance R4, one end of resistance R5 and one end of electric capacity C8 simultaneously; The other end of resistance R4 connects the positive pole of electrochemical capacitor C4; The other end of resistance R5 connects the in-phase input end of the other end of electric capacity C8, the output terminal of amplifier A1 and amplifier A2 simultaneously, the inverting input of amplifier A2 connects the movable end of slide rheostat R6, one end of the output terminal contact resistance R16 of amplifier A2, the other end of resistance R16 connects the base stage of NPN triode VT2 and the collector of NPN triode VT3 simultaneously; The collector other end of contact resistance R14 and 2 pin of NE555 time-base integrated circuit simultaneously of NPN triode VT2; The base stage of NPN triode VT3 is one end of contact resistance R17, one end of resistance R18 and one end of resistance R15 simultaneously, and the other end of resistance R15 connects the negative pole of electrochemical capacitor C9;
7 pin of NE555 time-base integrated circuit are the other end of contact resistance R19,6 pin of NE555 time-base integrated circuit and the positive pole of electrochemical capacitor C10 simultaneously; 5 pin of NE555 time-base integrated circuit connect one end of electric capacity C11, and 3 pin of NE555 time-base integrated circuit connect the positive pole of electrochemical capacitor C12, and the negative pole of electrochemical capacitor C12 records shooting instruction output end out as start and stop;
The E pin of LN074B pyroelectric infrared sensor connects 1 pin of the emitter of NPN triode VT1, the negative pole of electrochemical capacitor C4, the negative pole power supply terminal of amplifier A1, another stiff end of slide rheostat R6, the negative pole power supply terminal of amplifier A2, the emitter of NPN triode VT2, the other end of resistance R17, the other end of resistance R18, the emitter of NPN triode VT3, the negative pole of electrochemical capacitor C10, the other end of electric capacity C11 and NE555 time-base integrated circuit simultaneously, and ground connection.
Principle of work:
When needing to start recording camera function, Closing Switch S, whole circuit has power supply, even if owner at the scene also can not false triggering when start delay circuit makes start, during closed S, VT3 conducting, makes the base potential of VT2 clamp and fixes on about 0.3V, guarantee that VT2 is in cut-off state, A point is high level, can not trigger NE555 upset, keep the 3 pin output low levels of NE555, like this, infrared camera 7 can not be triggered and start recording; As time goes on, electrochemical capacitor C9 is charged to a certain degree, and the base voltage of VT3 is down to below 0.7V, and VT3 ends, and removes the control to VT2, makes it be in holding state, and enough owners leave scene during this period of time.
LN074B pyroelectric infrared sensor can install Fresnel Lenses additional in use, and infrared detecting distance can be made to be increased to tens meters.When there being people to move in effective detecting area, LN074B pyroelectric infrared sensor converts the infrared signal of mobile human body radiation the ultra-low frequency signal of alternation to, this signal is after VT1 amplifies, and add to the in-phase input end of amplifier A1, A1 and R4, R5 and C4 form low-pass filter; A2 and R6 forms voltage comparator.
At ordinary times, when in effective detecting area, nobody walks about, circuit is in static state, and A2 no signal exports, and VT2 ends, and A point is high level, and 2 pin of NE555 are also high level, the 3 pin output low levels of NE555, and infrared camera 7 is not recorded, if someone enters in effective detecting area, the low-frequency alternating signal that LN074B pyroelectric infrared sensor exports is through VT1, A1 two-stage adds to the in-phase input end of A2 after amplifying, now the voltage of the in-phase input end of A2 is higher than the reference voltage of the inverting input of A2, A2 exports and transfers high level to by low level, this high level provides bias voltage to the base stage of VT2, VT2 conducting, the current potential of A point is pulled to low level, namely 2 pin of NE555 are also pulled to low level, lower than 1/3 of NE555 working power, NE555 interior overturn, 3 pin of NE555 export high level, then infrared camera 7 starts to record, the video information recorded is stored in storer 11 by single-chip microcomputer 5.
The reference voltage of amplifier A2 is adjusted by slide rheostat R6.
Claims (2)
1. the safety defense monitoring system of computer room, is characterized in that, it comprises machine room monitor terminal and Surveillance center; Machine room monitor terminal and Surveillance center carry out data interaction, and the warning message of machine room monitor terminal sends to Surveillance center in real time;
Machine room monitor terminal comprises temperature sensor (1), humidity sensor (2), smoke transducer (3), A/D change-over circuit (4), single-chip microcomputer (5), pyroelectricity observation circuit (6), infrared camera (7), patrols and examines focus APP (8), illegally open the door testing circuit (9), display screen (10), storer (11) and onsite alarming device (12);
Temperature sensor (1), humidity sensor (2) and smoke transducer (3) are arranged on machine room indoor;
Pyroelectricity observation circuit (6), infrared camera (7) and patrol and examine focus APP (8) and be arranged on machine room outdoor;
Illegal enabling testing circuit (9) is arranged on machine room door opening and closing place;
The temperature signal output terminal of temperature sensor (1) is connected with the temperature analog signal input end of A/D change-over circuit (4); The temperature digital signal output part of A/D change-over circuit (4) is connected with the temperature digital signal input part of single-chip microcomputer (5);
The moisture signal output terminal of humidity sensor (2) is connected with the humidity simulation signal input part of A/D change-over circuit (4); The humidity digital signal output end of A/D change-over circuit (4) is connected with the humidity digital signal input end of single-chip microcomputer (5);
The smoke signal output terminal of smoke transducer (3) is connected with the smoke simulation signal input part of A/D change-over circuit (4); The smog digital signal output end of A/D change-over circuit (4) is connected with the smog digital signal input end of single-chip microcomputer (5);
The parameter display signal output part of single-chip microcomputer (5) is connected with the display input end of display screen (10);
Whether pyroelectricity observation circuit (6) has people's process for monitoring machine door mouth, and the start and stop recording shooting instruction output end of pyroelectricity observation circuit (6) is recorded with the start and stop of infrared camera (7) command input of making a video recording and is connected; The recorded video data output end of infrared camera (7) is connected with the recorded video data input pin of single-chip microcomputer (5); The video data transmission end of single-chip microcomputer 1 is connected with the video data transmission end of storer (11);
Patrol and examine focus APP (8) read patrol officer hand-held patrol and examine card;
The illegal enabling signal output terminal of illegal enabling testing circuit (9) is connected with the illegal enabling signal input end of single-chip microcomputer (5); The alarm command output terminal of single-chip microcomputer (5) is connected with the alarm command input end of onsite alarming device (12);
The terminal data of single-chip microcomputer (5) and warning message and Surveillance center carry out alternately.
2. the safety defense monitoring system of computer room according to claim 1, it is characterized in that, pyroelectricity observation circuit (6) comprises LN074B pyroelectric infrared sensor, switch S, sensor signal processing circuit, time-delay start-up circuit and start and stop and records shooting instruction output circuit; LN074B pyroelectric infrared sensor is arranged on computer room outdoors;
Sensor signal processing circuit comprises amplifier A1, amplifier A2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, slide rheostat R6, resistance R14, resistance R16, electrochemical capacitor C1, electric capacity C2, electrochemical capacitor C3, electrochemical capacitor C4, electrochemical capacitor C7, electric capacity C8, NPN triode VT1 and NPN triode VT2;
Time-delay start-up circuit comprises resistance R15, resistance R17, resistance R18, electrochemical capacitor C9 and NPN triode VT3;
Start and stop are recorded shooting instruction output circuit and are comprised NE555 time-base integrated circuit, resistance R19, electrochemical capacitor C10, electrochemical capacitor C11 and electrochemical capacitor C12;
One end of+5V direct supply connecting valve S, the other end of switch S is the positive pole of one end of the positive pole power supply terminal of the stiff end of the positive pole of the positive pole power supply terminal of one end of contact resistance R3, amplifier A1, electrochemical capacitor C7, slide rheostat R6, amplifier A2, resistance R14, electrochemical capacitor C9, one end of resistance R19,4 pin of NE555 time-base integrated circuit and 8 pin simultaneously;
The other end of resistance R3 is one end of contact resistance R1, the positive pole of electrochemical capacitor C1 and the D pin of LN074B pyroelectric infrared sensor simultaneously; The minus earth of electrochemical capacitor C1; The S pin of LN074B pyroelectric infrared sensor connects the positive pole of electrochemical capacitor C3, and the negative pole of electrochemical capacitor C3 connects one end of electric capacity C2, one end of resistance R2 and the base stage of NPN triode VT1 simultaneously; The collector of the other end of electric capacity the C2 other end of contact resistance R1, the other end of resistance R2, the in-phase input end of amplifier A1 and NPN triode VT1 simultaneously; The inverting input of amplifier A1 is one end of contact resistance R4, one end of resistance R5 and one end of electric capacity C8 simultaneously; The other end of resistance R4 connects the positive pole of electrochemical capacitor C4; The other end of resistance R5 connects the in-phase input end of the other end of electric capacity C8, the output terminal of amplifier A1 and amplifier A2 simultaneously, the inverting input of amplifier A2 connects the movable end of slide rheostat R6, one end of the output terminal contact resistance R16 of amplifier A2, the other end of resistance R16 connects the base stage of NPN triode VT2 and the collector of NPN triode VT3 simultaneously; The collector other end of contact resistance R14 and 2 pin of NE555 time-base integrated circuit simultaneously of NPN triode VT2; The base stage of NPN triode VT3 is one end of contact resistance R17, one end of resistance R18 and one end of resistance R15 simultaneously, and the other end of resistance R15 connects the negative pole of electrochemical capacitor C9;
7 pin of NE555 time-base integrated circuit are the other end of contact resistance R19,6 pin of NE555 time-base integrated circuit and the positive pole of electrochemical capacitor C10 simultaneously; 5 pin of NE555 time-base integrated circuit connect one end of electric capacity C11, and 3 pin of NE555 time-base integrated circuit connect the positive pole of electrochemical capacitor C12, and the negative pole of electrochemical capacitor C12 records shooting instruction output end out as start and stop;
The E pin of LN074B pyroelectric infrared sensor connects 1 pin of the emitter of NPN triode VT1, the negative pole of electrochemical capacitor C4, the negative pole power supply terminal of amplifier A1, another stiff end of slide rheostat R6, the negative pole power supply terminal of amplifier A2, the emitter of NPN triode VT2, the other end of resistance R17, the other end of resistance R18, the emitter of NPN triode VT3, the negative pole of electrochemical capacitor C10, the other end of electric capacity C11 and NE555 time-base integrated circuit simultaneously, and ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075990.1U CN205211111U (en) | 2015-12-22 | 2015-12-22 | Security protection monitored control system of computer room |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075990.1U CN205211111U (en) | 2015-12-22 | 2015-12-22 | Security protection monitored control system of computer room |
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| CN205211111U true CN205211111U (en) | 2016-05-04 |
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| CN201521075990.1U Expired - Fee Related CN205211111U (en) | 2015-12-22 | 2015-12-22 | Security protection monitored control system of computer room |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686349A (en) * | 2016-11-25 | 2017-05-17 | 合肥海亚信息科技有限公司 | Intelligent building safety and protection system based on Internet of Things |
| CN107390582A (en) * | 2017-07-31 | 2017-11-24 | 合肥万伟达信息科技有限公司 | A kind of computer room safety monitoring system |
| WO2018010456A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Intelligent computer room management system |
-
2015
- 2015-12-22 CN CN201521075990.1U patent/CN205211111U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018010456A1 (en) * | 2016-07-11 | 2018-01-18 | 谢广鹏 | Intelligent computer room management system |
| CN106686349A (en) * | 2016-11-25 | 2017-05-17 | 合肥海亚信息科技有限公司 | Intelligent building safety and protection system based on Internet of Things |
| CN107390582A (en) * | 2017-07-31 | 2017-11-24 | 合肥万伟达信息科技有限公司 | A kind of computer room safety monitoring system |
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Granted publication date: 20160504 Termination date: 20181222 |