CN105448018A - Intrusion alarm system for power system control machine room - Google Patents
Intrusion alarm system for power system control machine room Download PDFInfo
- Publication number
- CN105448018A CN105448018A CN201511035409.8A CN201511035409A CN105448018A CN 105448018 A CN105448018 A CN 105448018A CN 201511035409 A CN201511035409 A CN 201511035409A CN 105448018 A CN105448018 A CN 105448018A
- Authority
- CN
- China
- Prior art keywords
- chip
- electric capacity
- module
- diode
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Alarm Systems (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an intrusion alarm system for a power system control machine room, and the system comprises a triggering module, a power module, a single-chip microcomputer, and a sound-light alarm module. A signal output end of the triggering module is connected with the single-chip microcomputer, and the single-chip microcomputer is also connected with a storage unit, a timer, a power module, an audio decoding module, a video decoding module, the sound-light alarm module, and a wireless transmitter. According to the invention, the system is additionally provided with an induction triggering module on the basis of a conventional security and protection camera, achieves the monitoring of the interior of a machine room through employing the technology of microwave body sensing, has no monitoring dead angle, is high in imperceptibility, employs a power supply with a function of power-off protection, prolongs the service life of the single-chip microcomputer, can give an alarm and record a picture and audio information when a crasher intrudes, and transmits the picture and information outwards through a wireless network. The system is good in imperceptibility, is diversified in function, and is good in effect of security and protection.
Description
Technical field
The present invention relates to a kind of intrusion alarm system, specifically a kind of electric power system control machine room intrusion alarm system.
Background technology
The machine room of electric system maintains whole electric system generating, transmission of electricity, transmission, the core place of the functions such as traffic monitoring, the ambient conditions of its inside is directly connected to the running status of whole electric system, electric power machine room is inner owing to arranging a large amount of exact instrument, therefore the security device in machine room has very important significance, safety monitoring equipment conventional is at present camera, camera can record the image information of monitoring site, and be transferred to safety monitoring center, especially the application in antitheft field is more extensive, fire-fighting camera is in the market varied, but most of camera is 24 hours uninterruptedly to be opened, although monitoring effect is good, but the probability that theft occurs is very little, because this increasing a large amount of waste of energy and element loss.And existing security device many uses single-chip microcomputer is as main control chip, single-chip microcomputer may cause when running into unexpected power-off and burns, and causes the stoppage in transit of whole system, has a strong impact on its serviceable life.
Summary of the invention
The object of the present invention is to provide a kind of electric power system control machine room intrusion alarm system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of electric power system control machine room intrusion alarm system, comprises trigger module, power module, single-chip microcomputer and acousto-optic alarm module; The signal output part of described trigger module connects single-chip microcomputer, and described single-chip microcomputer also distinguishes connected storage, timer, power module, audio decoder module, Video decoding module, sound and light alarm module and transmitting set; Audio decoder module also connects microphone, and Video decoding module also connects camera, and transmitting set also connects mobile device and Surveillance center respectively;
Described trigger circuit comprise chip IC 1, chip IC 2, electric capacity C1 and relay J, one end contact resistance R2 of electric capacity C1, electric capacity C2, the contact J-1 of relay J and the positive pole of power supply E, the other end of the negative pole contact resistance R1 of power supply E, resistance R1 connects the positive pole of diode D2, the positive pole of diode D3, electric capacity C3, electric capacity C4, relay J, 3 pins of chip IC 1,3 pins of chip IC 2 and diode D4, the negative pole of diode D4 connects a stiff end and the central processing unit of potentiometer RP1, and 2 ports of rectifier bridge T connect the contact J-1 of relay J, the other end of electric capacity C1 and resistance R2, the contact J-1 of relay J connects the stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of the other end contact resistance R2 of electric capacity C2, the positive pole of diode D1 and the negative pole of diode D2, the negative pole of diode D1 connects the other end of electric capacity C2, resistance R3, 1 pin of chip IC 1, 2 pins of chip IC 1 and 1 pin of chip IC 2, the other end of resistance R3 connects the other end of electric capacity C4, 5 pins of chip IC 1 and 2 pins of chip IC 2,4 pins of chip IC 1 connect the other ends of relay J and the negative pole of diode D3 and export induced signal to master cpu, and chip IC 1 is 555 time base circuits, and chip IC 2 is TX982 type microwave induction controller,
Described power module comprises rectifier bridge T, transformer W, electric capacity C5 and resistance R4, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects electric capacity C5, electric capacity C7, the negative electrode of diode R5 and the pin 1 of chip IC 3, the port 4 of rectifier bridge T connects the other end of electric capacity C5, electric capacity C6, resistance R5, the anode of diode R6, the emitter of triode Q1 and the pin 3 of chip IC 3, the anode contact resistance R4 of diode R5, the other end of other end contact resistance R5 of resistance R4 and the base stage of triode Q1, the other end contact resistance R6 of electric capacity C7 and the pin 5 of chip IC 3, the collector of the other end connecting triode Q1 of resistance R6, the pin 2 of chip IC 3 connects the negative electrode of inductance L 1 and diode R6, the other end of inductance L 1 connects the other end of electric capacity C6, the pin 4 of chip IC 3 and output voltage U1, the model of described chip IC 3 is LM7525.
As preferred version of the present invention: the model of described single-chip microcomputer is STC89C51.
As preferred version of the present invention: described camera is hidden pinhole cameras.
As preferred version of the present invention: described sound and light alarm module is made up of light emitting diode and loudspeaker.
As preferred version of the present invention: the model of described transmitting set is SIM300.
Compared with prior art, the invention has the beneficial effects as follows, electric power system control machine room intrusion alarm system of the present invention adds induction trigger module on the basis of common security protection camera, microwave human body sensing technology is utilized to monitor the carrying out in machine room, it is monitored without dead angle and has very strong disguise, adopt the power supply with power-off protection function simultaneously, add the serviceable life of system single-chip microcomputer, run into when having uninvited guest to invade, also picture and audio-frequency information can be recorded while sending sound and light alarm, and sent by wireless network, therefore there is good concealment, diverse in function, the advantage that security protection is effective.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of electric power system control machine room intrusion alarm system;
Fig. 2 is the circuit diagram of trigger module;
Fig. 3 is the circuit diagram of power module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-3, a kind of electric power system control machine room intrusion alarm system, comprises trigger module, power module, single-chip microcomputer and acousto-optic alarm module; The signal output part of described trigger module connects single-chip microcomputer, and described single-chip microcomputer also distinguishes connected storage, timer, power module, audio decoder module, Video decoding module, sound and light alarm module and transmitting set; Audio decoder module also connects microphone, and Video decoding module also connects camera, and transmitting set also connects mobile device and Surveillance center respectively;
Described trigger circuit comprise chip IC 1, chip IC 2, electric capacity C1 and relay J, one end contact resistance R2 of electric capacity C1, electric capacity C2, the contact J-1 of relay J and the positive pole of power supply E, the other end of the negative pole contact resistance R1 of power supply E, resistance R1 connects the positive pole of diode D2, the positive pole of diode D3, electric capacity C3, electric capacity C4, relay J, 3 pins of chip IC 1,3 pins of chip IC 2 and diode D4, the negative pole of diode D4 connects a stiff end and the central processing unit of potentiometer RP1, and 2 ports of rectifier bridge T connect the contact J-1 of relay J, the other end of electric capacity C1 and resistance R2, the contact J-1 of relay J connects the stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of the other end contact resistance R2 of electric capacity C2, the positive pole of diode D1 and the negative pole of diode D2, the negative pole of diode D1 connects the other end of electric capacity C2, resistance R3, 1 pin of chip IC 1, 2 pins of chip IC 1 and 1 pin of chip IC 2, the other end of resistance R3 connects the other end of electric capacity C4, 5 pins of chip IC 1 and 2 pins of chip IC 2,4 pins of chip IC 1 connect the other ends of relay J and the negative pole of diode D3 and export induced signal to master cpu, and chip IC 1 is 555 time base circuits, and chip IC 2 is TX982 type microwave induction controller,
Described power module comprises rectifier bridge T, transformer W, electric capacity C5 and resistance R4, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects electric capacity C5, electric capacity C7, the negative electrode of diode R5 and the pin 1 of chip IC 3, the port 4 of rectifier bridge T connects the other end of electric capacity C5, electric capacity C6, resistance R5, the anode of diode R6, the emitter of triode Q1 and the pin 3 of chip IC 3, the anode contact resistance R4 of diode R5, the other end of other end contact resistance R5 of resistance R4 and the base stage of triode Q1, the other end contact resistance R6 of electric capacity C7 and the pin 5 of chip IC 3, the collector of the other end connecting triode Q1 of resistance R6, the pin 2 of chip IC 3 connects the negative electrode of inductance L 1 and diode R6, the other end of inductance L 1 connects the other end of electric capacity C6, the pin 4 of chip IC 3 and output voltage U1, the model of described chip IC 3 is LM7525.
The model of single-chip microcomputer is STC89C51.Camera is hidden pinhole cameras.Sound and light alarm module is made up of light emitting diode and loudspeaker.The model of transmitting set is SIM300.
Principle of work of the present invention is: the protection philosophy of power module: the potential circuit in Fig. 3 comprises reduction voltage circuit, rectification circuit, filtering circuit and mu balanced circuit, and reduction voltage circuit is made up of transformer W; Rectification circuit is made up of rectifier bridge T; Filtered electrical routing capacitance C5 and C6 forms; Mu balanced circuit is made up of switch voltage-stabilizing integrated circuit (IC) 3.Potential circuit includes voltage threshold circuit and delay circuit; Voltage threshold circuit is made up of diode D5 and resistance R4, R5; Delay circuit is made up of polypropylene capactive C7 and resistance R3, in work, after line voltage input, after transformer W step-down, rectifier bridge T rectification and an electric capacity C5 filtering, carry out the detection of voltage threshold by voltage threshold circuit, guarantee that its voltage can reach on voltage stabilizing diode D6 burning voltage 12V.The function of after this delay circuit time delay 10 milliseconds of starting switch integrated regulator IC3, thus realize the Spline smoothing of electric power output voltage 0 to 5V.Through the voltage of voltage stabilizing after C6 secondary filtering, can for single-chip microcomputer.Threshold circuit is set in circuit, threshold detection can be carried out for input voltage, guarantee that input voltage can arrive voltage stabilizing diode setting voltage, ensure that the stability after voltage input simultaneously, avoid the voltage fluctuation of line voltage and the unstable phenomenon of the electric power output voltage that causes, improve the reliability of single-chip microcomputer electrification reset.Delay circuit is set in circuit; the function of starting switch integrated regulator LM2575 after circuit delay 10 milliseconds can be made; realize the Spline smoothing of electric power output voltage 0 to 5V; simultaneously by avoiding the voltage fluctuation time thus avoiding the instability that voltage fluctuation formed; guarantee the complete success of single-chip microcomputer electrification reset process, reach the object of protection single-chip microcomputer.
The principle of work of trigger module: microwave sensor IC2 is placed in the region of needs monitoring, enter in the spatial dimension of TX982 type microwave induction controller when there being people, will reflection echo when human body enters electric field, TX982 type microwave induction controller utilizes microwave Doppler effect, the microwave signal received is processed, the output terminal of TX982 type microwave induction controller adopts open collector to export, when microwave circuit has detected that people is movable in monitoring range, inner triode ON 10 seconds, falls the charge discharging resisting on C3.555 circuit composition single stabilization delay circuits, when the 2nd pin is lower than 1/3 supply voltage, 3rd pin exports high level, relay J adhesive, the contact J-1 adhesive of relay J, signal is transferred to the signal input part of single-chip microcomputer by potentiometer RP1, by the coder-decoder of STC89C51 single-chip microcomputer inside, analyzing and processing is carried out to trigger pip, export control signal and open Video decoding module, audio decoder module, sound and light alarm module and transmitting set, be connected to microphone in audio decoder module for collected sound signal, be connected to pinhole cameras on Video decoding module for gathering the image information in car, transmitting set is for sending long-range remote alarms information, image information and voice signal are to mobile device and Surveillance center, system adds induction trigger module on the basis of common security protection camera, microwave human body sensing technology is utilized to monitor the carrying out in machine room, it is monitored without dead angle and has very strong disguise, adopt the power supply with power-off protection function simultaneously, add the serviceable life of system single-chip microcomputer, run into when having uninvited guest to invade, also picture and audio-frequency information can be recorded while sending sound and light alarm, and sent by wireless network, therefore there is good concealment, diverse in function, the advantage that security protection is effective.
Claims (5)
1. an electric power system control machine room intrusion alarm system, comprises trigger module, power module, single-chip microcomputer and acousto-optic alarm module; It is characterized in that, the signal output part of described trigger module connects single-chip microcomputer, and described single-chip microcomputer also distinguishes connected storage, timer, power module, audio decoder module, Video decoding module, sound and light alarm module and transmitting set; Audio decoder module also connects microphone, and Video decoding module also connects camera, and transmitting set also connects mobile device and Surveillance center respectively;
Described trigger circuit comprise chip IC 1, chip IC 2, electric capacity C1 and relay J, one end contact resistance R2 of electric capacity C1, electric capacity C2, the contact J-1 of relay J and the positive pole of power supply E, the other end of the negative pole contact resistance R1 of power supply E, resistance R1 connects the positive pole of diode D2, the positive pole of diode D3, electric capacity C3, electric capacity C4, relay J, 3 pins of chip IC 1,3 pins of chip IC 2 and diode D4, the negative pole of diode D4 connects a stiff end and the central processing unit of potentiometer RP1, and 2 ports of rectifier bridge T connect the contact J-1 of relay J, the other end of electric capacity C1 and resistance R2, the contact J-1 of relay J connects the stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of the other end contact resistance R2 of electric capacity C2, the positive pole of diode D1 and the negative pole of diode D2, the negative pole of diode D1 connects the other end of electric capacity C2, resistance R3, 1 pin of chip IC 1, 2 pins of chip IC 1 and 1 pin of chip IC 2, the other end of resistance R3 connects the other end of electric capacity C4, 5 pins of chip IC 1 and 2 pins of chip IC 2,4 pins of chip IC 1 connect the other ends of relay J and the negative pole of diode D3 and export induced signal to master cpu, and chip IC 1 is 555 time base circuits, and chip IC 2 is TX982 type microwave induction controller,
Described power module comprises rectifier bridge T, transformer W, electric capacity C5 and resistance R4, the two ends of the winding N1 of described transformer W connect the two ends of 220V alternating current respectively, the two ends of the winding N2 of transformer W connect the port one of rectifier bridge T and the port 3 of rectifier bridge T respectively, the port 2 of rectifier bridge T connects electric capacity C5, electric capacity C7, the negative electrode of diode R5 and the pin 1 of chip IC 3, the port 4 of rectifier bridge T connects the other end of electric capacity C5, electric capacity C6, resistance R5, the anode of diode R6, the emitter of triode Q1 and the pin 3 of chip IC 3, the anode contact resistance R4 of diode R5, the other end of other end contact resistance R5 of resistance R4 and the base stage of triode Q1, the other end contact resistance R6 of electric capacity C7 and the pin 5 of chip IC 3, the collector of the other end connecting triode Q1 of resistance R6, the pin 2 of chip IC 3 connects the negative electrode of inductance L 1 and diode R6, the other end of inductance L 1 connects the other end of electric capacity C6, the pin 4 of chip IC 3 and output voltage U1, the model of described chip IC 3 is LM7525.
2. a kind of electric power system control machine room intrusion alarm system according to claim 1, is characterized in that, the core component of described single-chip microcomputer is AT89C52 type single-chip microcomputer.
3. a kind of electric power system control machine room intrusion alarm system according to claim 1, it is characterized in that, described camera is hidden pinhole cameras.
4. a kind of electric power system control machine room intrusion alarm system according to claim 1, it is characterized in that, described sound and light alarm module is made up of light emitting diode and loudspeaker.
5. a kind of electric power system control machine room intrusion alarm system according to claim 1, is characterized in that, the model of described transmitting set is SIM300.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201511035409.8A CN105448018A (en) | 2015-12-30 | 2015-12-30 | Intrusion alarm system for power system control machine room |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201511035409.8A CN105448018A (en) | 2015-12-30 | 2015-12-30 | Intrusion alarm system for power system control machine room |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105448018A true CN105448018A (en) | 2016-03-30 |
Family
ID=55558144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201511035409.8A Pending CN105448018A (en) | 2015-12-30 | 2015-12-30 | Intrusion alarm system for power system control machine room |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105448018A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106054622A (en) * | 2016-05-20 | 2016-10-26 | 湖南奥科网络技术股份有限公司 | Smart home ring control system based on Internet |
CN106355802A (en) * | 2016-09-12 | 2017-01-25 | 北海和思科技有限公司 | Security information remote management system |
CN107155144A (en) * | 2017-06-20 | 2017-09-12 | 广州市缔客航海设备有限公司 | Wireless microphone control system |
CN107204090A (en) * | 2017-06-16 | 2017-09-26 | 合肥讯邦网络科技有限公司 | A kind of system for monitoring intrusion based on IMAQ and information extraction |
CN107507385A (en) * | 2017-08-22 | 2017-12-22 | 广州绿美环保科技有限公司 | Energy-conserving and environment-protective system |
CN109003409A (en) * | 2017-06-07 | 2018-12-14 | 辽宁工程技术大学 | A kind of down-hole fireproof system |
CN110086558A (en) * | 2019-04-09 | 2019-08-02 | 广西俊锦科技有限公司 | Public address system |
CN111726579A (en) * | 2020-06-12 | 2020-09-29 | 平湖市凯翔电子科技有限公司 | Campus security monitoring system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200905618A (en) * | 2007-07-30 | 2009-02-01 | Chunghwa Telecom Co Ltd | Telephone utility room environment monitoring device |
CN201322868Y (en) * | 2008-11-21 | 2009-10-07 | 广西大学 | Intelligent remote base station monitoring system |
CN201773460U (en) * | 2010-06-30 | 2011-03-23 | 常州市科能电器有限公司 | Remote anti-theft monitoring system for transformer |
CN204392430U (en) * | 2014-12-17 | 2015-06-10 | 东莞市永之兴电子科技有限公司 | A kind of induction trigger-type digital supervision video recording system |
CN204480457U (en) * | 2015-03-16 | 2015-07-15 | 江西财经职业学院 | A kind of Internet of Things warning system |
CN204596039U (en) * | 2015-04-02 | 2015-08-26 | 广西南宁鼎俊科技有限公司 | A kind of safety-protection system based on GSM |
CN204595595U (en) * | 2015-05-27 | 2015-08-26 | 江西通华智电科技有限公司 | A kind of intelligent switch of integrated Zigbee-technology |
CN204632042U (en) * | 2015-05-11 | 2015-09-09 | 张玲玲 | A kind of traffic surveillance and control system based on computer communication |
-
2015
- 2015-12-30 CN CN201511035409.8A patent/CN105448018A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200905618A (en) * | 2007-07-30 | 2009-02-01 | Chunghwa Telecom Co Ltd | Telephone utility room environment monitoring device |
CN201322868Y (en) * | 2008-11-21 | 2009-10-07 | 广西大学 | Intelligent remote base station monitoring system |
CN201773460U (en) * | 2010-06-30 | 2011-03-23 | 常州市科能电器有限公司 | Remote anti-theft monitoring system for transformer |
CN204392430U (en) * | 2014-12-17 | 2015-06-10 | 东莞市永之兴电子科技有限公司 | A kind of induction trigger-type digital supervision video recording system |
CN204480457U (en) * | 2015-03-16 | 2015-07-15 | 江西财经职业学院 | A kind of Internet of Things warning system |
CN204596039U (en) * | 2015-04-02 | 2015-08-26 | 广西南宁鼎俊科技有限公司 | A kind of safety-protection system based on GSM |
CN204632042U (en) * | 2015-05-11 | 2015-09-09 | 张玲玲 | A kind of traffic surveillance and control system based on computer communication |
CN204595595U (en) * | 2015-05-27 | 2015-08-26 | 江西通华智电科技有限公司 | A kind of intelligent switch of integrated Zigbee-technology |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106054622A (en) * | 2016-05-20 | 2016-10-26 | 湖南奥科网络技术股份有限公司 | Smart home ring control system based on Internet |
CN106355802A (en) * | 2016-09-12 | 2017-01-25 | 北海和思科技有限公司 | Security information remote management system |
CN109003409A (en) * | 2017-06-07 | 2018-12-14 | 辽宁工程技术大学 | A kind of down-hole fireproof system |
CN107204090A (en) * | 2017-06-16 | 2017-09-26 | 合肥讯邦网络科技有限公司 | A kind of system for monitoring intrusion based on IMAQ and information extraction |
CN107155144A (en) * | 2017-06-20 | 2017-09-12 | 广州市缔客航海设备有限公司 | Wireless microphone control system |
CN107507385A (en) * | 2017-08-22 | 2017-12-22 | 广州绿美环保科技有限公司 | Energy-conserving and environment-protective system |
CN110086558A (en) * | 2019-04-09 | 2019-08-02 | 广西俊锦科技有限公司 | Public address system |
CN111726579A (en) * | 2020-06-12 | 2020-09-29 | 平湖市凯翔电子科技有限公司 | Campus security monitoring system |
CN111726579B (en) * | 2020-06-12 | 2022-02-11 | 禾研(嘉兴)建筑智能化工程有限公司 | Campus security monitoring system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105448018A (en) | Intrusion alarm system for power system control machine room | |
CN204791404U (en) | Long -range thing of electric power networking management system | |
CN206249454U (en) | A kind of Intelligent door lock capable of recognizing face system and safety door | |
CN104867285A (en) | Home security system | |
CN105788150A (en) | Fire-fighting safety system based on internet | |
CN201946083U (en) | Infrared fence alarm | |
CN106981160A (en) | A kind of anti-theft monitoring system based on image capture and processing | |
CN103647942A (en) | Comprehensive transmission line monitoring device with intelligent video damage-by-external-force prevention function | |
CN105120227B (en) | A kind of monitoring system Integrated Management Module and management method | |
CN107730809A (en) | A kind of safety-protection system based on web camera | |
CN205177073U (en) | Based on thing networking fire prevention theftproof alarm system | |
CN204480457U (en) | A kind of Internet of Things warning system | |
CN201138498Y (en) | Theft-resisting early alarming apparatus of distributing transformer based on GSM technique | |
CN107393244A (en) | A kind of intrusion alarm system based on power carrier circuit | |
CN204155395U (en) | A kind of novel safety device | |
CN107204090A (en) | A kind of system for monitoring intrusion based on IMAQ and information extraction | |
CN204990572U (en) | Burglar alarm for valuables | |
CN105608855A (en) | Remote control and alarm system | |
CN204425488U (en) | A kind of home network video camera | |
CN204406567U (en) | CIT is based on the safety defense monitoring system of smart mobile phone | |
CN207337612U (en) | Network Video Surveillance intelligent alarm device | |
CN207799849U (en) | A kind of Internet of Things intelligent safety prevention warning system | |
CN208422034U (en) | The bad monitoring warning terminal of electric power facility external force damage prevention | |
CN106097634A (en) | A kind of multifunctional fire-fighting alarm | |
CN206675476U (en) | Distributed monitoring system and based on can autonomous moving dust collector distributed monitoring system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |