CN201477706U - GSM wireless alarming device for monitoring electrical fire - Google Patents
GSM wireless alarming device for monitoring electrical fire Download PDFInfo
- Publication number
- CN201477706U CN201477706U CN2009201941331U CN200920194133U CN201477706U CN 201477706 U CN201477706 U CN 201477706U CN 2009201941331 U CN2009201941331 U CN 2009201941331U CN 200920194133 U CN200920194133 U CN 200920194133U CN 201477706 U CN201477706 U CN 201477706U
- Authority
- CN
- China
- Prior art keywords
- circuit
- single chip
- machine controlling
- input
- chip machine
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model provides a GSM wireless alarming device for monitoring electrical fire. A singlechip control circuit detects the electric leakage, over-voltage or under voltage of the input supply voltage. The input of a fire-fighting start circuit is received and the state is monitored and after inside processing, the multi-path output is controlled, including GSM wireless emission alarming information, voice alarm, indicator lamp display, LCD display and the action of a tripping device is driven and a power supply is switched off. A multi-path monitoring circuit is used timely accurately alarming the unusual state present in the electrical circuit, sending the alarming information to the assigner by a GSM network with wireless remote control and GSM wireless alarming function and effectively solving the technical problems that the building reconstruction has no way of wiring.
Description
Technical field
The utility model relates to electronic circuit field, relates in particular to a kind of gsm wireless warning device that is used for electric fire disaster monitoring.
Background technology
Along with China's rapid economy development, the cable distribution of many buildings building very intensive, modern electrical system architecture is also complicated day by day, and the electrical fire accident of Yin Faing is also more and more frequent thus.According to the interrelated data statistics, electrical fire has accounted for more than 30% of fire generation.In China's electrical fire, because of causing large tracts of land electrical equipment to damage, the voltage failure instability happens occasionally, mainly be to cause because of " disconnected zero ", three phase and four wire circuit system, when " disconnected zero ", it is higher or on the low side to produce certain phase voltage, makes electrical equipment because of mistake, under-voltage condition, cause electrical equipment to damage, thereby cause electrical fire.Because building electric fire hidden trouble is dangerous big, personnel are intensive, according to national correlation method regulation, when fire takes place, should be able to cut off the general supply of respective storey, avoid because of by electric wiring with fire spread, protect the safety of fire fighter when putting out a fire simultaneously.Therefore, need the electronic surveillance system of a cover monitoring electrical fire in power distribution circuit, the fault of detection equipment and circuit thereof and abnormality are found electric disaster hidden-trouble, and in time the prompting personnel go to eliminate these hidden danger.
Though can be the effectively pre-electrical fire prevention of existing electric fire alarm device takes place, but, cause certain infringement will certainly for buildings itself, especially to time-honored ancient building because complex structure, wiring are loaded down with trivial details.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of gsm wireless warning device that is used for electric fire disaster monitoring, adopt the multichannel monitoring circuit, early warning timely and accurately goes out the existing unusual condition of electric circuit, and warning information is sent to the designated person by the GSM network, have wired remote control and gsm wireless warning function, can effectively solve the technical barrier that the building renovation project can not connect up.
The technical scheme that the utility model adopted is:
A kind of gsm wireless warning device that is used for electric fire disaster monitoring comprises
One single chip machine controlling circuit, it is made up of 51 singlechip chips (U1) and the oscillation generating circuit that connects on it, its input is connected in power circuit, voltage detecting circuit, fire-fighting start-up circuit, watchdog circuit and keyboard circuit, its output is connected in GSM radiating circuit, LCD display circuit, alert acoustic-electric road, relay drive circuit and indicator light circuit, and its input and output are connected in communication interface circuit;
One power circuit, its output terminal is connected in described single chip machine controlling circuit;
One voltage detecting circuit comprises voltage transformer (VT) and voltage comparator circuit, and its input is connected in electric network source, and output is connected to described single chip machine controlling circuit;
One fire-fighting start-up circuit, its input is connected in the fire-fighting link signal, and output is connected to described single chip machine controlling circuit;
One watchdog circuit, its output is connected in described single chip machine controlling circuit;
One keyboard circuit, its output is connected in described single chip machine controlling circuit;
One GSM radiating circuit, its input is connected in described single chip machine controlling circuit;
One LCD display circuit comprises the LCD chip for driving, and its input is connected in described single chip machine controlling circuit, and its output is connected in the LCD module;
One alert acoustic-electric road, its input is connected in described single chip machine controlling circuit, and its output is connected in loudspeaker;
One relay drive circuit, its input is connected in described single chip machine controlling circuit, and its output is connected to tripping mechanism;
One indicator light circuit, its input is connected in described single chip machine controlling circuit;
One communication interface circuit, its input and output are connected in described single chip machine controlling circuit.
Further, described power circuit is that the output terminal of transformer constitutes through the power rectifier voltage stabilizing chip that a full-bridge rectification unit of being made up of 4 diodes is connected with its output terminal, the input end of described power rectifier voltage stabilizing chip and be connected to 2 filter capacitors and output terminal also and be connected to 2 filter capacitors.Power circuit generation+5V ,+12V voltage, working power is provided.
Further, described voltage detecting circuit leaks electricity, overvoltage and under-voltage detection, comprise voltage transformer (VT) and voltage comparator circuit, be to adopt voltage transformer (VT) to gather voltage signal, through voltage comparator circuit and reference voltage relatively after, input to single chip machine controlling circuit.Described voltage detecting circuit is to respond to this voltage signal by current transformer, process diode rectification on the secondary coil of current transformer, behind the capacitor filtering, after resistance current limliting dividing potential drop, after inputing to voltage comparator circuit, the filtering circuit that electric capacity constitutes is connected to single chip machine controlling circuit more again.Described voltage comparator circuit is made up of operational amplifier, and its reference voltage is connected to+acquisition of 5V dividing potential drop by resistance.
Further, the circuit that described fire-fighting start-up circuit is made up of photoelectrical coupler, divider resistance and pull-up resistor, the output terminal of photoelectrical coupler is connected in single chip machine controlling circuit.
Further, described GSM radiating circuit comprises the GSM chip; Described LCD display circuit comprises the LCD chip for driving; Described watchdog circuit is made up of 5045 chips.The keyboard circuit that described keyboard circuit is made up of a plurality of buttons is connected in+the 5V power supply by pull-up resistor.
Further, described alert acoustic-electric road is to be made of sound generation chip, audio frequency expansion chip and peripheral resistance and electric capacity, the port that its switch control end is 51 singlechip chips is by connecting photoelectrical coupler control semiconductor switch pipe conducting+12V power supply thereon, input to audio frequency and enlarge chip, and input to sound generation chip working power is provided through pull-up resistor, the output terminal that audio frequency enlarges chip links to each other with loudspeaker.Described audio frequency enlarges chip and is preferably LM386, and sound generation chip is preferably 9561.
Further, described relay drive circuit is the port of the 51 singlechip chips control utmost point of a current-limiting resistance to triode of connecting, the collector of triode links to each other with the coil of relay, and the contact of relay links to each other with tripping mechanism, drives tripping mechanism action control end.
Further, described indicator light circuit comprises shift register, light emitting diode and is connected in that pull-up resistor on the light emitting diode forms that shift register links to each other with single chip machine controlling circuit by bus.Described shift register is 595 chips.
Further, described communication interface circuit comprises two-way, and a route signal transceiving chip is connected to system bus; One tunnel RS232 telecommunication circuit of being made up of photoelectrical coupler, triode and peripheral resistance is connected to the Long-distance Control port, and alerting signal is sent to system host.
The disclosed gsm wireless warning device that is used for electric fire disaster monitoring of the utility model; multiple functional, comprehensive; adopt the multichannel monitoring circuit; finish the check and analysis of data by Single-chip Controlling; by the GSM network warning information is sent to the designated person; have wired remote control and gsm wireless warning function, protect highly sensitive, good reliability, advantage such as realize the first early warning of fault, many, multiple functional, the manual or automatic power-down mode of monitoring circuit is available, the engineering cost cost is low.Design according to China's architectural feature, have wired remote control and gsm wireless warning function, solve the technical barrier that ancient building or transformation project can not connect up effectively.
Description of drawings
Fig. 1 is the theory diagram that the utility model is used for the gsm wireless warning device of electric fire disaster monitoring;
Fig. 2 is the circuit theory diagrams that the utility model is used for the gsm wireless warning device of electric fire disaster monitoring.
Embodiment
Existing accompanying drawings and embodiment further specify the utility model.
Consult shown in Figure 1, a kind of gsm wireless warning device that is used for electric fire disaster monitoring, comprise single chip machine controlling circuit 1, power circuit 2, voltage detecting circuit 3, fire-fighting start-up circuit 4, GSM radiating circuit 5, LCD display circuit 6, watchdog circuit 7, keyboard circuit 8, alert acoustic-electric road 9, relay drive circuit 10, indicator light circuit 11 and communication interface circuit 12, wherein
Single chip machine controlling circuit 1, its input is connected in power circuit 2, voltage detecting circuit 3, fire-fighting start-up circuit 4, watchdog circuit 7 and keyboard circuit 8, its output is connected in GSM radiating circuit 5, LCD display circuit 6, alert acoustic-electric road 9, relay drive circuit 10 and indicator light circuit 11, and its input and output are connected in communication interface circuit 12;
Voltage detecting circuit 3 comprises voltage transformer (VT) 31 and voltage comparator circuit 32, and its input is connected in electric network source, and output is connected to described single chip machine controlling circuit 1;
Fire-fighting start-up circuit 4, its input are connected in fire-fighting link signal DC24V, and output is connected to described single chip machine controlling circuit 1;
Alert acoustic-electric road 9, its input is connected in described single chip machine controlling circuit 1, and its output is connected in loudspeaker;
Further, consult shown in Figure 2ly, described single chip machine controlling circuit 1 comprises 51 singlechip chip U1.The power rectifier voltage stabilizing 7805 chip U9 generation+5V power supplys that the output terminal that described power circuit 2 is transformers is connected with its output terminal through a full-bridge rectification unit of being made up of 4 diode D2～D5, the input end of described power rectifier voltage stabilizing chip U9 and be connected to 2 filter capacitor C6, C7 and output terminal also and be connected to 2 filter capacitor C8, C9.Similarly, the power rectifier voltage stabilizing 7812 chip U10 generation+12V power supplys that the output terminal of transformer is connected with its output terminal through a full-bridge rectification unit of being made up of 4 diode D6～D9, the input end of described power rectifier voltage stabilizing chip U10 and be connected to 2 filter capacitor C10, C11 and output terminal also and be connected to 2 filter capacitor C12, C13.
Described voltage detecting circuit 3 comprises voltage transformer (VT) 31 and voltage comparator circuit 32, be to adopt voltage transformer (VT) 31 to gather input voltage signals, through voltage comparator circuit 32 and reference voltage relatively after, input to single chip machine controlling circuit 1.Described voltage detecting circuit 31 is to respond to this phase voltage signal by current transformer B1, process diode D1 rectification on the secondary coil of current transformer B1, after capacitor C 1 filtering, after resistance R 1, resistance R 7 current limliting dividing potential drops, after inputing to voltage comparator circuit 32, the filtering circuit that capacitor C 2, capacitor C 3 constitute is connected to single chip machine controlling circuit 1 more again.Described voltage comparator circuit 32 is made up of operational amplifier U11, and its reference voltage is connected to+acquisition of 5V dividing potential drop by resistance R 2～R4.
The circuit that described fire-fighting start-up circuit 4 is made up of photoelectrical coupler T1, divider resistance R17 and pull-up resistor R18, the input end of photoelectrical coupler T1 is connected in fire-fighting DC24V signal, and output terminal is connected in single chip machine controlling circuit 1.
Described GSM radiating circuit 5 comprises GSM chip U8; Described LCD display circuit 6 comprises LCD chip for driving U6; Described watchdog circuit 7 is made up of 5045 chip U2.The keyboard circuit that described keyboard circuit 8 is made up of button K1～K9 is connected in+the 5V power supply by pull-up resistor R9～R11, is provided with by 8 pairs of systematic parameters of keyboard circuit.
Described alert acoustic-electric road 9 is to be made of sound generation chip U5, audio frequency expansion chip U4 and peripheral resistance and electric capacity, the port that its switch control end is 51 singlechip chip U1 is by connecting photoelectrical coupler T4 control semiconductor switch pipe VT5 conducting+12V power supply thereon, input to audio frequency and enlarge chip U4, and input to sound generation chip U5 through pull-up resistor R32 working power is provided, the output terminal that audio frequency enlarges chip U4 links to each other with loudspeaker.Described audio frequency enlarges chip U4 and is preferably LM386, and sound generation chip U5 is preferably 9561.
The port that described relay drive circuit 10 the is 51 singlechip chip U1 control utmost point of a current-limiting resistance R33 of connecting to triode VT6, the collector of triode VT6 links to each other with the coil of relay J, the contact of relay J links to each other with tripping mechanism 13, drives tripping mechanism 13 actions.
Described indicator light circuit 11 comprises what shift register U3, LED 5～LED12 and connection pull-up resistor R22～R29 thereon formed, and shift register U3 links to each other with single chip machine controlling circuit 1 by bus.
Described communication interface circuit 12 comprises that two-way is connected with system, and one the tunnel is to be connected to system bus by signal transmitting and receiving chip U7; One tunnel RS232 telecommunication circuit of being made up of photoelectrical coupler T2, photoelectrical coupler T3, triode VT2～VT4 and peripheral resistance is connected to the Long-distance Control port, and alerting signal is sent to system host.
Principle of work of the present utility model is:
Voltage detecting circuit 3 is by current transformer B1 induction ac voltage signal, the voltage that its secondary coil produces, through diode D1 rectification, after capacitor C 1 filtering, pass through the filtering circuit of forming by resistance R 1, capacitor C 2, capacitor C 3 again, through resistance R 1 current limliting, resistance R 7 dividing potential drops, to capacitor C 2 chargings, insert the 6th pin that chip U11 is amplified in computing, after the R5 current limliting, insert 51 singlechip chip U1 the 16th pin by the output of the 7th pin.
When 51 singlechip chip U1 have detected the data-signal input, judge through 51 singlechip chip U1 internal processes logic analyses, when reaching alarm condition, divide six tunnel outputs.
The output of first via pilot lamp, the indicator light circuit of forming by single-chip microcomputer and pull-up resistor R22～R29 by shift register U3, LED 5～LED12, shift register U3 connects the 27th pin, the 23rd pin, the 22nd pin and the 21st pin of 51 singlechip chip U1 by bus, and it is bright to control corresponding pilot lamp; The second tunnel output drives audible alarm, by 51 singlechip chip U1 the 38th pin output high level, make LED3 bright, drive photoelectrical coupler T4 conducting, make triode VT5 conducting, carry out audible alarm thereby drive the audible alarm circuit of forming jointly by audio frequency expansion chip U4 and sound generation chip U5; Third Road LCD shows output, connect the 4th pin, the 5th pin and the 6th pin of LCD chip for driving U6 respectively by 51 singlechip chip U1 the 14th pin, the 13rd pin and the 12nd pin, 51 singlechip chip U1 the 15th pin connects the driving circuit of LCD chip for driving U6, drive LCD chip for driving U6 work, data are from the 12nd pin output of 51 singlechip chip U1, be input to the 4th pin of LCD chip for driving U6, thereby data presentation will respectively be set on the LCD screen; The four tunnel output driving tripping mechanism action by 51 singlechip chip U1 the 17th pin output high level, makes triode VT6 conducting, promotes the cut-off relay adhesive, makes power cutoff mechanism thread off and moves; The five tunnel communication interface is divided two-way output, the 4th pin of one route, 51 singlechip chip U1, the 5th pin, communication interface the 1st pin of the 26th pin input serial data signal transceiving chip U7, the 2nd, 3 pin, the 4th pin are sent to system bus with alerting signal, the RS232 telecommunication circuit of being made up of photoelectrical coupler T2, T3, triode VT2, VT3, VT4 and corresponding resistor is inserted by the 5th pin, the 26th pin of 51 singlechip chip U1 in another road, by the Long-distance Control port alerting signal is sent to system host; The six road gsm wireless output inserts GSM chip U8 by the 32nd pin, the 33rd pin, the 34th pin and the 35th pin of 51 singlechip chip U1, and alert data is sent in the GSM network, by the GSM network warning message is sent to the designated person with the form of note.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (10)
1. the gsm wireless warning device that is used for electric fire disaster monitoring, it is characterized in that, comprise a single chip machine controlling circuit (1), it is made up of 51 singlechip chips (U1) and the oscillation generating circuit that connects on it, its input is connected in power circuit (2), voltage detecting circuit (3), fire-fighting start-up circuit (4) and keyboard circuit (8), and its output is connected in GSM radiating circuit (5), LCD display circuit (6), relay drive circuit (10);
One power circuit (2), its output terminal are connected in described single chip machine controlling circuit (1);
One voltage detecting circuit (3) comprises voltage transformer (VT) (31) and voltage comparator circuit (32), and its input is connected in electric network source, and output is connected to described single chip machine controlling circuit (1);
One fire-fighting start-up circuit (4), its input is connected in the fire-fighting link signal, and output is connected to described single chip machine controlling circuit (1);
One keyboard circuit (8), its output are connected in described single chip machine controlling circuit (1);
One GSM radiating circuit (5), its input is connected in described single chip machine controlling circuit (1);
One LCD display circuit (6), its input is connected in described single chip machine controlling circuit (1), and its output is connected in the LCD module;
One relay drive circuit (10), its input are connected in described single chip machine controlling circuit (1), and its output is connected to tripping mechanism (13).
2. gsm wireless warning device according to claim 1, it is characterized in that, also comprise watchdog circuit (7), alert acoustic-electric road (9), indicator light circuit (11) and communication interface circuit (12), wherein said watchdog circuit (7) is made up of 5045 chips (U2), and its IO interface is connected with single chip machine controlling circuit (1);
Described alert acoustic-electric road (9), its input are connected in described single chip machine controlling circuit (1), and its output is connected in loudspeaker;
Described indicator light circuit (11), its input are connected in described single chip machine controlling circuit (1);
Described communication interface circuit (12), its input and output are connected in described single chip machine controlling circuit (1).
3. gsm wireless warning device according to claim 1, it is characterized in that, described voltage detecting circuit (31) is to respond to this voltage signal by current transformer (B1), process diode (D1) rectification on the secondary coil of current transformer (B1), after electric capacity (C1) filtering, after resistance (R1), resistance (R7) current limliting dividing potential drop, after inputing to voltage comparator circuit (32), the filtering circuit that electric capacity (C2), electric capacity (C3) constitute is connected to single chip machine controlling circuit (1) more again.
4. gsm wireless warning device according to claim 1, it is characterized in that: the circuit that described fire-fighting start-up circuit (4) is made up of photoelectrical coupler (T1), divider resistance (R17) and pull-up resistor (R18), the output terminal of photoelectrical coupler (T1) is connected in single chip machine controlling circuit (1).
5. gsm wireless warning device according to claim 1 is characterized in that: described GSM radiating circuit (5) comprises the GSM chip, receives and launch the warning message of single chip machine controlling circuit (1).
6. gsm wireless warning device according to claim 1 is characterized in that, (keyboard circuit of K1～K9) form is by pull-up resistor (R9～R11) be connected in+5V power supply by button for described keyboard circuit (8).
7. gsm wireless warning device according to claim 2, it is characterized in that, described alert acoustic-electric road (9) is to enlarge chip (U4) by audio frequency, sound generation chip (U5) and peripheral resistance and electric capacity constitute, its switch control end is that the port of 51 singlechip chips (U1) is controlled semiconductor switch pipe (VT5) conducting+12V power supply by the photoelectrical coupler (T4) that connects thereon, input to LM386 operational amplifier (U4), and through pull-up resistor (R32) input to 9561 sound generation chips (U5), the output terminal of LM386 operational amplifier (U4) links to each other with loudspeaker.
8. gsm wireless warning device according to claim 1, it is characterized in that: described relay drive circuit (10) is the port of 51 singlechip chips (U1) the control utmost point of a current-limiting resistance (R33) to triode (VT6) of connecting, the collector of triode (VT6) links to each other with the coil of relay (J), the contact of relay (J) links to each other with tripping mechanism (13), drives tripping mechanism (13) action control end.
9. gsm wireless warning device according to claim 2, it is characterized in that: described indicator light circuit (11) comprises shift register (U3), light emitting diode (LED5～LED12) and connect thereon pull-up resistor (R22's～R29) form, shift register (U3) links to each other with single chip machine controlling circuit (1) by bus.
10. gsm wireless warning device according to claim 2 is characterized in that: described communication interface circuit (12) comprises two-way, and a route signal transceiving chip (U7) is connected to system bus; One the tunnel by photoelectrical coupler (T2, T3), triode (the RS232 telecommunication circuit that VT2～VT4) and peripheral resistance are formed is connected to the Long-distance Control port, and alerting signal is sent to system host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941331U CN201477706U (en) | 2009-09-02 | 2009-09-02 | GSM wireless alarming device for monitoring electrical fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201941331U CN201477706U (en) | 2009-09-02 | 2009-09-02 | GSM wireless alarming device for monitoring electrical fire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477706U true CN201477706U (en) | 2010-05-19 |
Family
ID=42413961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201941331U Expired - Fee Related CN201477706U (en) | 2009-09-02 | 2009-09-02 | GSM wireless alarming device for monitoring electrical fire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477706U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969228A (en) * | 2010-09-07 | 2011-02-09 | 浙江豪顿电气有限公司 | Communication adapter of residual current circuit breaker |
| CN101976493A (en) * | 2010-09-29 | 2011-02-16 | 傅哲龙 | Electrical fire warning device |
| CN102436719A (en) * | 2011-09-28 | 2012-05-02 | 福建俊豪电子有限公司 | Wireless receiving device for fire disaster monitoring equipment |
| CN102750800A (en) * | 2012-06-27 | 2012-10-24 | 张金木 | Automatic fire alarming system |
| CN102759896A (en) * | 2012-07-22 | 2012-10-31 | 张金木 | Principal and subordinate communication system based on alternating current power lines |
| CN102820910A (en) * | 2012-08-02 | 2012-12-12 | 张金木 | Master-slave communication based on direct-current power lines |
| CN102929316A (en) * | 2012-11-12 | 2013-02-13 | 张金木 | Measurement and control system for temperature, humidity and illuminance |
| CN103065417A (en) * | 2011-10-20 | 2013-04-24 | 成都思茂科技有限公司 | Electrical fire monitor and detection device |
| CN103456129A (en) * | 2013-08-29 | 2013-12-18 | 江门市海星游艇制造有限公司 | Comprehensive failure warning system |
| CN109658647A (en) * | 2019-02-28 | 2019-04-19 | 上海金盾消防智能科技有限公司 | A kind of fire acousto-optic alarm |
-
2009
- 2009-09-02 CN CN2009201941331U patent/CN201477706U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969228A (en) * | 2010-09-07 | 2011-02-09 | 浙江豪顿电气有限公司 | Communication adapter of residual current circuit breaker |
| CN101976493A (en) * | 2010-09-29 | 2011-02-16 | 傅哲龙 | Electrical fire warning device |
| CN102436719A (en) * | 2011-09-28 | 2012-05-02 | 福建俊豪电子有限公司 | Wireless receiving device for fire disaster monitoring equipment |
| CN103065417A (en) * | 2011-10-20 | 2013-04-24 | 成都思茂科技有限公司 | Electrical fire monitor and detection device |
| CN102750800A (en) * | 2012-06-27 | 2012-10-24 | 张金木 | Automatic fire alarming system |
| CN102759896A (en) * | 2012-07-22 | 2012-10-31 | 张金木 | Principal and subordinate communication system based on alternating current power lines |
| CN102759896B (en) * | 2012-07-22 | 2014-04-02 | 张金木 | Principal and subordinate communication system based on alternating current power lines |
| CN102820910A (en) * | 2012-08-02 | 2012-12-12 | 张金木 | Master-slave communication based on direct-current power lines |
| CN102929316A (en) * | 2012-11-12 | 2013-02-13 | 张金木 | Measurement and control system for temperature, humidity and illuminance |
| CN102929316B (en) * | 2012-11-12 | 2014-10-08 | 张金木 | Measurement and control system for temperature, humidity and illuminance |
| CN103456129A (en) * | 2013-08-29 | 2013-12-18 | 江门市海星游艇制造有限公司 | Comprehensive failure warning system |
| CN109658647A (en) * | 2019-02-28 | 2019-04-19 | 上海金盾消防智能科技有限公司 | A kind of fire acousto-optic alarm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201477706U (en) | GSM wireless alarming device for monitoring electrical fire | |
| CN203196157U (en) | Intelligent evacuating indicating system | |
| CN201402962Y (en) | Electric fire detection control integrated system | |
| CN105244854B (en) | A kind of electric arc light protection method with 360 degree of omnidirectional's monitorings and NFC monitoring functions | |
| CN203204114U (en) | Direct current grounding alarm based on current detector with openings | |
| CN203577214U (en) | Fire extinguishing agent gas pressure network monitoring system of gas fire extinguishing system bottle group | |
| CN204791488U (en) | Burning things which may cause a fire disaster is surveyed and is reported to police and datonation -inhibition device based on wireless communication module | |
| CN101344543A (en) | Miniature multipath electric fire disaster monitoring alarm | |
| CN201364628Y (en) | Anti-theft alarm device for air conditioner | |
| CN105422178B (en) | A kind of Flameproof and intrinsically safe portable blower motor switch alarm assembly | |
| CN108765837A (en) | A kind of fire detection alarm system and alarm method based on EnOcean | |
| CN104133460A (en) | Power monitoring system of fire fighting apparatus | |
| CN204496662U (en) | Based on ZigBee intelligent remote fuel gas leak alarm systems | |
| CN103617702A (en) | Gas detection alarm system based on ZigBee | |
| CN202677548U (en) | Monitoring detector used in electrical fire hazard monitoring system | |
| CN202677553U (en) | Electrical fire hazard monitoring device | |
| CN106097669A (en) | A kind of mine work safety-protection system | |
| CN201489633U (en) | Control host circuit for electrical fire module | |
| CN202026514U (en) | Electric carrier wave intelligent lighting device | |
| CN205068081U (en) | Novel fire control device power monitored control system | |
| CN101976493A (en) | Electrical fire warning device | |
| CN205692298U (en) | A kind of cable theft prevention alarm device | |
| CN217386182U (en) | Power supply monitoring device for subway fire-fighting equipment | |
| CN104778820A (en) | Intelligent remote gas-leakage alarm system based on ZigBee | |
| CN105071354A (en) | Arc light protection monitoring method based on NFC (Near Field Communication) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120902 |