CN203179215U - Remote monitoring system of wireless fire alarm - Google Patents
Remote monitoring system of wireless fire alarm Download PDFInfo
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- CN203179215U CN203179215U CN 201320147625 CN201320147625U CN203179215U CN 203179215 U CN203179215 U CN 203179215U CN 201320147625 CN201320147625 CN 201320147625 CN 201320147625 U CN201320147625 U CN 201320147625U CN 203179215 U CN203179215 U CN 203179215U
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Abstract
The utility model discloses a remote monitoring system of wireless fire alarm. The system is characterized in that the system comprises a fire alarm controller (1); the fire alarm controller (1) is connected with a 485 concentrator (2); the485 concentrator (2) is connected with a wireless fire alarm monitoring host (3); the wireless fire alarm monitoring host (3) is connected with a warning-signal-type wireless signal transceiver (4); the warning-signal-type wireless signal transceiver (4) is connected with a wireless smoke fire detection alarm (5), a wireless manual alarm switch (6) and a wireless combustible gas detection alarm (7) respectively. By using the system of the utility model, construction is flexible; installation and debugging are convenient; a construction amount is small; a construction period is greatly reduced; maintenance and repairing are convenient; maintenance cost is reduced; an operation is simple; installation is simple; a sensitivity is high; the system is safe and reliable.
Description
Technical field:
The utility model relates to a kind of long distance control system, relates in particular to a kind of wireless fire disaster warning long distance control system.
Background technology:
Present existing fire alarm system mainly contains following several:
1, automatic fire alarm system: mainly formed by concentrated alarm controller, local alarm controller, audible-visual annunciator, fire detector, manual fire alarm call point etc., automatically (manually) discovery condition of a fire and timely the warning.Experience multiple-way system switching value formula, bus switching value formula processed and analog quantity conveying type fire alarm system three phases are applicable to high level, tier building.Present stage, most automatic fire alarm control system ubiquity system complex, long, the high problem of installation cost of construction period; Keep in repair in addition, safeguard shortcomings such as loaded down with trivial details, make mounted building fire protection facility be in paralysis or semiparalysis state, can not normally play a role; Isolated, wide, the difficult discovery of fault that distributes of automatic fire alarm system, the management maintenance difficulty; Monitor capacity is little, do not establish the flexible networking interface, shortcomings such as man-machine interface is simple, response speed is slow, poor reliability, rate of false alarm height; In practical operation, because fire alarm information need be through operator on duty's processing, artificial factor has played crucial effect simultaneously.
2, free-standing smoke detecting alarm, free-standing combustible gas detecting alarm: these two kinds of detecting alarms are the detection alarm device that works alone, can send the sound and light alarm signal, flees the scene with the warning personnel.Only can only self report to the police, can't network, distribute wide and the difficult discovery of fault, the management maintenance difficulty in suitable small building and place; When in the protection zone nobody the time alert takes place, alerting signal can't be communicated to, and can not in time put out a fire to save life and property, and can't implement third party's monitoring management, does not still have the relevant art product to solve such problem at present.
The utility model content:
The purpose of this utility model be to overcome the deficiency of above-mentioned prior art and provide a kind of and construct flexibly, Installation and Debugging are convenient, construction volume is little, shorten construction period greatly, maintaining and easy to maintenance, reduce maintenance cost, simple to operate, simple installation, highly sensitive, safe and reliable wireless fire disaster warning long distance control system.
The purpose of this utility model can reach by following measure: a kind of wireless fire disaster warning long distance control system, it is characterized in that it comprises fire alarm control unit, fire alarm control unit connects 485 hubs, 485 hubs connect wireless fire disaster alarm monitoring main frame, wireless fire disaster alarm monitoring main frame connects warning signal formula wireless signal transceiver, and warning signal formula wireless signal transceiver connects wireless smoke detecting alarm, wireless manual alarm switch and wireless combustible gas detecting alarm respectively;
Fire alarm control unit is provided with RS485 standard PORT COM;
485 hubs are provided with the RS485 PORT COM;
Wireless fire disaster alarm monitoring main frame comprises host SCM MCU, host SCM MCU connects codec unit, matrix press-key unit, audio monitoring recording broadcast unit, the voltage stabilizing of main frame AC power and reserve battery detecting unit, main frame led state pilot lamp, LCD display, alarm bell driver element, 485 interfaces respectively, codec unit connects main frame GSM/GPRS data transmission unit, and main frame GSM/GPRS data transmission unit connects master machine antenna;
Warning signal formula wireless signal transceiver comprises the transceiver single-chip microprocessor MCU, the transceiver single-chip microprocessor MCU connects RF radio receiving transmitting module, bus transfer unit respectively, to sign indicating number button, the voltage stabilizing of transceiver AC power and reserve battery detecting unit, transceiver led state pilot lamp, warning signal, the RF radio receiving transmitting module connects dual-mode antenna, the bus transfer unit connects transceiver GSM/GPRS data transmission unit, and transceiver GSM/GPRS data transmission unit connects transmit antenna;
Wireless smoke detecting alarm comprises alarm MCU, alarm MCU connects alarm direct-flow voltage regulation unit, alarm decoding unit, alarm antenna, alarm LED light, alarm hummer respectively, and the alarm decoding unit connects alarm smoke detection unit;
Wireless manual alarm switch body is provided with alarm switch MCU, alarm switch MCU connects alarm switch direct-flow voltage regulation unit, alarm switch decoding unit, alarm switch antenna, alarm switch LED light, alarm switch hummer respectively, and the alarm switch decoding unit connects manual pull station;
Wireless combustible gas detecting alarm body is provided with MCU, and MCU connects the power supply voltage stabilizing of orthogonal stream and reserve battery detecting unit, decoding unit, antenna, LED light, hummer respectively, and decoding unit connects the combustible gas detecting unit.
The utility model is by fire alarm control unit, 485 hubs, wireless fire disaster alarm monitoring main frame, warning signal formula wireless signal transceiver, wireless smoke detecting alarm, wireless manual alarm switch and wireless combustible gas detecting alarm are formed, wireless smoke detecting alarm, wireless combustible gas detecting alarm is installed in the buildings, wireless manual alarm switch is installed in the personnel aisle, the parlor, on the wall in bedroom, warning signal formula wireless signal transceiver is installed on the wall of floor corridor, when being monitored regional breaking out of fire, wireless smoke detecting alarm detects the smog when reaching threshold value that is monitored the zone by the infrared smoke probe unit, when sending acoustic alarm signal, self launches alerting signal to the warning signal formula wireless signal transceiver that is installed on the floor corridor, warning signal formula wireless signal transceiver sends the sound and light alarm signal and sends alerting signal by GPRS network to wireless fire disaster alarm monitoring main frame, after wireless fire disaster alarm monitoring main frame receives alerting signal, this machine LCD display display alarm information is also sent acoustic alarm signal, transmit warning message by 485 ports to fire alarm control unit, when being provided with a plurality of wireless fire disaster alarm monitoring main frame in the single system, 485 ports of a plurality of main frames need transmit warning message to fire alarm control unit by 485 hubs; When the fire initial stage, smog does not trigger wireless smoke detecting alarm when reporting to the police, find if any personnel, can press the wireless manual alarm switch that is installed on the wall nearby and send alerting signal, warning signal formula wireless signal transceiver sends the sound and light alarm signal after receiving alerting signal, send alerting signal by GPRS network to wireless fire disaster alarm monitoring main frame simultaneously, after wireless fire disaster alarm monitoring main frame receives alerting signal, this machine LCD display display alarm information is also sent acoustic alarm signal, transmits warning message by 485 ports to fire alarm control unit; The combustible gas leakage accident takes place in the wireless combustible gas detecting alarm installation region in buildings, wireless combustible gas detecting alarm sends acoustic alarm signal and sends the gas leakage wireless alarm signal, warning signal formula wireless signal transceiver sends the sound and light alarm signal and sends alerting signal by GPRS network to wireless fire disaster alarm monitoring main frame, after wireless fire disaster alarm monitoring main frame receives alerting signal, this machine LCD display display alarm information is also sent acoustic alarm signal, transmits warning message by 485 ports to fire alarm control unit.
The utility model can produce following good effect compared with the prior art: the utility model is the warning system that adopts Radio Transmission Technology to set up, this warning system is by fire alarm control unit, 485 hubs, wireless fire disaster alarm monitoring main frame, warning signal formula wireless signal transceiver, wireless smoke detecting alarm, wireless manual alarm switch and wireless combustible gas detecting alarm are formed, by at the smoke detection alarm, combustible gas detecting alarm, manually increase wireless communication module on the alarm switch, realize docking of wireless smoke detecting alarm and fire alarm by wireless transmission method, realize detecting alarm, third party's monitoring management of hand switch; This system integrates fire alarm, monitoring, communication, computer management, by the GSM/GPRS communication network, has realized warning robotization, intellectuality, networking; The wireless networking structure of system has guaranteed can locally adjust in coverage when facility is installed in system, and construction is flexible, and Installation and Debugging are convenient, need not through walls burrowing, and the wireless mode construction volume are little, shorten construction period greatly; Relatively independent between each equipment, be conducive to maintaining and maintenance, reduce maintenance cost, have simple to operate, simple installation, characteristics such as highly sensitive, safe and reliable; System can manage 100,000 user terminals, and capacity is big, and has reserved various expansion expansion interfaces, and upgrading is convenient, duplicate construction is few.
Description of drawings:
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the electric theory diagram of the wireless fire disaster alarm monitoring main frame of Fig. 1;
Fig. 3 is the electric theory diagram of the warning signal formula wireless signal transceiver of Fig. 1;
Fig. 4 is the electric theory diagram of the wireless smoke detecting alarm of Fig. 1;
Fig. 5 is the electric theory diagram of the wireless manual alarm switch of Fig. 1;
Fig. 6 is the electric theory diagram of the wireless combustible gas detecting alarm of Fig. 1.
Embodiment: embodiment of the present utility model is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of wireless fire disaster cigarette sense warning long distance control system (referring to Fig. 1), it comprises fire alarm control unit 1, fire alarm control unit 1 connects 485 hubs 2,485 hubs 2 connect wireless fire disaster alarm monitoring main frame 3, wireless fire disaster alarm monitoring main frame 3 connects warning signal formula wireless signal transceiver 4, and warning signal formula wireless signal transceiver 4 connects wireless smoke detecting alarm 5, wireless manual alarm switch 6 and wireless combustible gas detecting alarm 7 respectively.
The body of fire alarm control unit 1 is provided with the RS485 interface.
The body of 485 hubs 2 is provided with 4～16 road RS485 interfaces.
Wireless fire disaster alarm monitoring main frame 3(is referring to Fig. 2) comprise host SCM MCU(M0516) 3-4, host SCM MCU(M0516) 3-4 connects codec unit (HT9170) 3-3 respectively, matrix press-key unit 3-5, audio monitoring recording broadcast unit (AMTP32M, LM4890,74HC4066) 3-6, the voltage stabilizing of main frame AC power and reserve battery detecting unit (LM78M05C7, AQ4803,1117-3.3, MPS1482) 3-7, main frame led state pilot lamp (CD409413M) 3-8, LCD display (192 * 64-ENG-LCD) 3-9, alarm bell driver element 3-10,485 interfaces (MAX485) 3-11, codec unit (HT9170) 3-3 connects GSM/GPRS data transmission unit (SIM900A, SIM CARD) 3-2, main frame GSM/GPRS data transmission unit (SIM900A, SIM CARD) 3-2 connects master machine antenna 3-1.
Warning signal formula wireless signal transceiver 4(is referring to Fig. 3) comprise transceiver single-chip microprocessor MCU (M0516) 4-3, MCU(M0516) 4-3 connects RF radio receiving transmitting module (SI4432) 4-2 respectively, bus transfer unit (25Q08) 4-4, to sign indicating number button 4-7, the voltage stabilizing of transceiver AC power and reserve battery detecting unit (AQ4803,1117-3.3, MPS1482) 4-8, transceiver led state pilot lamp 4-9, warning signal 4-10, RF radio receiving transmitting module (SI4432) 4-2 connects dual-mode antenna 4-1, bus transfer unit (25Q08) 4-4 connects transceiver GSM/GPRS data transmission unit (SIM900A, SIM CARD) 4-6, transceiver GSM/GPRS data transmission unit (SIM900A, SIM CARD) 4-6 connects transmit antenna 4-5.
Wireless smoke detecting alarm 5(is referring to Fig. 4) comprise alarm MCU(CC1110) 5-4, alarm MCU(CC1110) 5-4 connects alarm direct-flow voltage regulation unit (HT7333) 5-5, alarm decoding unit 5-2, alarm antenna 5-3, alarm LED light 5-6, alarm hummer 5-7 respectively, and alarm decoding unit 5-2 connects smoke detection unit (MCP6042, SFH486) 5-1.
Wireless manual alarm switch 6(is referring to Fig. 5) comprise alarm switch MCU(CC1110) 6-4, alarm switch MCU(CC1110) 6-4 connects alarm switch direct-flow voltage regulation unit (HT7333) 6-5, alarm switch decoding unit 6-2, alarm switch antenna 6-3, alarm switch LED light 6-6, alarm switch hummer 6-7 respectively, and alarm switch decoding unit 6-2 connects manual pull station 6-1.
Wireless combustible gas detecting alarm 7(is referring to Fig. 7) comprise MCU(CC1110) 7-4, MCU(CC1110) 7-4 connects the power supply voltage stabilizing of orthogonal stream and reserve battery detecting unit (LM317,004459, MC34063, HT7333) 7-5, decoding unit 7-2, antenna 7-3, LED light 7-6, hummer 7-7 respectively, and decoding unit 7-2 connects combustible gas detecting unit (MQ-4, MQ-6, LM393) 7-1.
Working condition 1, the smog parameter that wireless smoke detecting alarm 5 collects on-site supervision surpasses threshold value, smoke detection unit 5-1 is to alarm decoding unit 5-2 output electric signal, alarm decoding unit 5-2 is to alarm single-chip microprocessor MCU 5-4 output data, it is glittering that alarm single-chip microprocessor MCU 5-4 drives alarm led state signal lamp 5-6, alarm hummer 5-7 sends acoustic alarm signal, the alert data of alarm single-chip microprocessor MCU 5-4 output transmits to warning signal formula wireless signal transceiver 4 through alarm antenna 5-1, warning signal formula wireless signal transceiver 4 is through dual-mode antenna 4-1, RF radio receiving transmitting module (SI4432) 4-2 receives alert data, RF radio receiving transmitting module (SI4432) 4-2 is input to transceiver single-chip microprocessor MCU (M0516) with alert data) 4-3, it is glittering that transceiver single-chip microprocessor MCU (M0516) 4-3 drives transceiver led state pilot lamp 4-9, warning signal 4-10 sends acoustic alarm signal, transceiver single-chip microprocessor MCU (M0516) is transferred to transceiver GSM/GPRS data transmission unit (SIM900A with alert data through bus transfer unit (25Q08) 4-4, SIM CARD) 4-6, transceiver GSM/GPRS data transmission unit (SIM900A, SIM CARD) 4-6 launches to wireless fire disaster alarm monitoring main frame 3 by GPRS network through transmit antenna 4-5, alerting signal is input to main frame GSM/GPRS data transmission unit (SIM900A by the master machine antenna 3-1 reception of fire alarm monitoring host computer 3, SIM CARD) 3-2, main frame GSM/GPRS data transmission unit (SIM900A, SIM CARD) 3-2 enters data into codec unit (HT9170) 3-3, codec unit (HT9170) 3-3 inputs to host SCM MCU(M0516 with decoded alerting signal) 3-4, host SCM MCU(M0516) 3-4 drives LCD display (192 * 64-ENG-LCD) 3-9 display alarm information, main frame led state pilot lamp (CD409413M) 3-8 red light is lighted, driving alarm bell by alarm bell driver element 3-10 rings, host SCM MCU(M0516) alert data of 3-4 output transmits to fire alarm control unit 1 by 485 hubs 2 through 485 interfaces (MAX485) 3-11
Working condition 2, less smog appears when the building fire initial stage, the situation personnel of observing can press wireless manual pull station 6-1 nearby, wireless manual pull station 6-1 passes through alarm switch decoding unit 6-2 to alarm switch single-chip microprocessor MCU (CC1110) 6-4 output alarm signal, alarm switch MCU(CC1110) it is glittering that 6-4 drives alarm switch LED light 6-6, alarm switch hummer 6-7 sends acoustic alarm signal, transmit to warning signal formula wireless signal transceiver 4 through alarm switch emitting antenna 6-3, warning signal formula wireless signal transceiver 4 is through dual-mode antenna 4-1, RF radio receiving transmitting module (SI4432) 4-2 receives alert data, RF radio receiving transmitting module (SI4432) 4-2 is input to transceiver single-chip microprocessor MCU (M0516) with alert data) 4-3, it is glittering that transceiver single-chip microprocessor MCU (M0516) 4-3 drives transceiver led state pilot lamp 4-9, warning signal 4-10 sends acoustic alarm signal, transceiver single-chip microprocessor MCU (M0516) is transferred to transceiver GSM/GPRS data transmission unit (SIM900A with alert data through bus transfer unit (25Q08) 4-4, SIM CARD) 4-6, transceiver GSM/GPRS data transmission unit (SIM900A, SIM CARD) 4-6 launches to wireless fire disaster alarm monitoring main frame 3 by the transceiver GPRS network through transmit antenna 4-5, alerting signal is input to main frame GSM/GPRS data transmission unit (SIM900A by the master machine antenna 3-1 reception of fire alarm monitoring host computer 3, SIM CARD) 3-2, main frame GSM/GPRS data transmission unit (SIM900A, SIM CARD) 3-2 enters data into codec unit (HT9170) 3-3, codec unit (HT9170) 3-3 inputs to host SCM MCU(M0516 with decoded alerting signal) 3-4, host SCM MCU(M0516) 3-4 drives LCD display (192 * 64-ENG-LCD) 3-9 display alarm information, main frame led state pilot lamp (CD409413M) 3-8 red light is lighted, drive alarm bell by alarm bell driver element 3-10 and ring host SCM MCU(M0516) alert data of 3-4 output through 485 interfaces (MAX485) 3-11 by 485 hubs 2 to fire alarm control unit 1 transmission.
Working condition 3, when natural gas leaking appears in buildings, the natural gas leaking parameter that wireless combustible gas detecting alarm 7 collects on-site supervision surpasses alarm setting value, combustible gas detecting unit (MQ-4, MQ-6, LM393) 7-1 is to decoding unit 7-2 output alarm signal, decoding unit 7-2 is to single-chip microprocessor MCU (CC1110) 7-4 output data, 7-6 is glittering for single-chip microprocessor MCU (CC1110) 7-4 driving LED pilot lamp, hummer 7-7 sends acoustic alarm signal, the alert data of single-chip microprocessor MCU 7-4 output transmits to warning signal formula wireless signal transceiver 4 through emitting antenna 7-3, warning signal formula wireless signal transceiver 4 is through dual-mode antenna 4-1, RF radio receiving transmitting module (SI4432) 4-2 receives alert data, RF radio receiving transmitting module (SI4432) 4-2 is input to transceiver single-chip microprocessor MCU (M0516) with alert data) 4-3, it is glittering that transceiver single-chip microprocessor MCU (M0516) 4-3 drives transceiver led state pilot lamp 4-9, warning signal 4-10 sends acoustic alarm signal, transceiver single-chip microprocessor MCU (M0516) is transferred to transceiver GSM/GPRS data transmission unit (SIM900A with alert data through bus transfer unit (25Q08) 4-4, SIM CARD) 4-6, transceiver GSM/GPRS data transmission unit (SIM900A, SIM CARD) 4-6 launches to wireless fire disaster alarm monitoring main frame 3 by GPRS network through transmit antenna 4-5, alerting signal is input to main frame GSM/GPRS data transmission unit (SIM900A by the master machine antenna 3-1 reception of fire alarm monitoring host computer 3, SIM CARD) 3-2, main frame GSM/GPRS data transmission unit (SIM900A, SIM CARD) 3-2 enters data into codec unit (HT9170) 3-3, codec unit (HT9170) 3-3 inputs to host SCM MCU(M0516 with decoded alerting signal) 3-4, host SCM MCU(M0516) 3-4 drives LCD display (192 * 64-ENG-LCD) 3-9 display alarm information, main frame led state pilot lamp (CD409413M) 3-8 red light is lighted, drive alarm bell by alarm bell driver element 3-10 and ring host SCM MCU(M0516) alert data of 3-4 output through 485 interfaces (MAX485) 3-11 by 485 hubs 2 to fire alarm control unit 1 transmission.
Claims (1)
1. wireless fire disaster warning long distance control system, it is characterized in that it comprises fire alarm control unit (1), fire alarm control unit (1) connects 485 hubs (2), 485 hubs (2) connect wireless fire disaster alarm monitoring main frame (3), wireless fire disaster alarm monitoring main frame (3) connects warning signal formula wireless signal transceiver (4), and warning signal formula wireless signal transceiver (4) connects wireless smoke detecting alarm (5), wireless manual alarm switch (6) and wireless combustible gas detecting alarm (7) respectively;
Fire alarm control unit (1) is provided with RS485 standard PORT COM;
485 hubs (2) are provided with the RS485 PORT COM;
Wireless fire disaster alarm monitoring main frame (3) comprises host SCM MCU(3-4), host SCM MCU(3-4) connects codec unit (3-3) respectively, matrix press-key unit (3-5), audio monitoring recording broadcast unit (3-6), the voltage stabilizing of main frame AC power and reserve battery detecting unit (3-7), main frame led state pilot lamp (3-8), LCD display (3-9), alarm bell driver element (3-10), 485 interfaces (3-11), codec unit (3-3) connects main frame GSM/GPRS data transmission unit (3-2), and main frame GSM/GPRS data transmission unit (3-2) connects master machine antenna (3-1);
Warning signal formula wireless signal transceiver (4) comprises transceiver single-chip microprocessor MCU (4-3), transceiver single-chip microprocessor MCU (4-3) connects RF radio receiving transmitting module (4-2) respectively, bus transfer unit (4-4), to sign indicating number button (4-7), the voltage stabilizing of transceiver AC power and reserve battery detecting unit (4-8), transceiver led state pilot lamp (4-9), warning signal (4-10), RF radio receiving transmitting module (4-2) connects dual-mode antenna (4-1), bus transfer unit (4-4) connects transceiver GSM/GPRS data transmission unit (4-6), and transceiver GSM/GPRS data transmission unit (4-6) connects transmit antenna (4-5);
Wireless smoke detecting alarm (5) comprises alarm MCU(5-4), alarm MCU(5-4) connect alarm direct-flow voltage regulation unit (5-5), alarm decoding unit (5-2), alarm antenna (5-3), alarm LED light (5-6), alarm hummer (5-7) respectively, alarm decoding unit (5-2) connects alarm smoke detection unit (5-1);
Wireless manual alarm switch (6) body is provided with alarm switch MCU(6-4), alarm switch MCU(6-4) connect alarm switch direct-flow voltage regulation unit (6-5), alarm switch decoding unit (6-2), alarm switch antenna (6-3), alarm switch LED light (6-6), alarm switch hummer (6-7) respectively, alarm switch decoding unit (6-2) connects manual pull station (6-1);
Wireless combustible gas detecting alarm (7) body is provided with MCU(7-4), MCU(7-4) connect orthogonal stream power supply voltage stabilizing and reserve battery detecting unit (7-5), decoding unit (7-2), antenna (7-3), LED light (7-6), hummer (7-7) respectively, decoding unit (7-2) connects combustible gas detecting unit (7-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147625 CN203179215U (en) | 2013-07-04 | 2013-07-04 | Remote monitoring system of wireless fire alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147625 CN203179215U (en) | 2013-07-04 | 2013-07-04 | Remote monitoring system of wireless fire alarm |
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| Publication Number | Publication Date |
|---|---|
| CN203179215U true CN203179215U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147625 Expired - Fee Related CN203179215U (en) | 2013-07-04 | 2013-07-04 | Remote monitoring system of wireless fire alarm |
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| CN (1) | CN203179215U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766395A (en) * | 2015-03-11 | 2015-07-08 | 张瞳 | Security control method of intelligent lock |
| CN105006093A (en) * | 2015-07-31 | 2015-10-28 | 中建安装工程有限公司 | GSM-based wireless remote fire alarm system |
-
2013
- 2013-07-04 CN CN 201320147625 patent/CN203179215U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766395A (en) * | 2015-03-11 | 2015-07-08 | 张瞳 | Security control method of intelligent lock |
| CN105006093A (en) * | 2015-07-31 | 2015-10-28 | 中建安装工程有限公司 | GSM-based wireless remote fire alarm system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190704 |