CN201562335U - Temperature measurement type electric fire monitoring system - Google Patents
Temperature measurement type electric fire monitoring system Download PDFInfo
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- CN201562335U CN201562335U CN2009201623752U CN200920162375U CN201562335U CN 201562335 U CN201562335 U CN 201562335U CN 2009201623752 U CN2009201623752 U CN 2009201623752U CN 200920162375 U CN200920162375 U CN 200920162375U CN 201562335 U CN201562335 U CN 201562335U
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Abstract
The utility model relates to a temperature measurement type electric fire monitoring system which comprises the following components: an optical fiber temperature monitoring alarm device, a residual current type electric fire monitoring detector and an alarm monitoring host. The temperature measurement type electric fire monitoring system further comprises a data concentrator which respectively receives the monitoring information from the optical fiber temperature monitoring alarm device and the residual current type electric fire monitoring detector and uploads to the alarm monitoring host. The alarm monitoring host real-time communicates with a monitoring work station through Ethernet or local area network or APRS wireless network. The optical fiber temperature monitoring alarm device and the residual current type electric fire monitoring detector are respectively used for monitoring the temperature information of power equipment and the information of the residual current of each loop, and transmit the monitoring information to the data concentrator. The data concentrator uploads the monitoring information to the monitoring host through the Ethernet or local area network after processing. The monitoring host displays whether the power equipment is overheated and whether the residual current in the loop exceeds a threshold in real time, and pre-alarms or alarms in time when an abnormity occurs.
Description
Technical field
The utility model relates to a kind of temp.-measuring type electric fire monitoring system.
Background technology
The reason of fire of electrical fire mainly contains following several: 1, electric leakage; 2, short circuit; 3, overload.The electrical fire that is finally caused by the power equipment heating is all accounting for the ratio more than 60% in the electrical fire; In addition, the leakage current fault that is caused by impaired, the humid environment of insulation etc. (and caused by the leakage current electric spark) is occupied the ratio more than 10% again in the cause of electrical fire.
When on the impaired circuit of insulation and the leakage current to 300 that produces～during 500mA, breakage will produce the spark discharge phenomenon with contiguous earth conductor.At this moment, combustible and fire goods around the electric spark that discharges can ignite easily, thereby the fire failure of causing.Even, there is not inflammable, combustible existence on every side, the impaired area that the spark discharge that leakage current produces can be quickened to insulate equally makes the damaged points rapid charing of insulation course on every side to become inflammable object, and is on fire by spark ignition again.
Therefore, overheated when how to prevent the power equipment operation, realize monitoring in real time and handle in advance, guarantee the security and the reliability of power equipment, be those skilled in the art's technical barrier to be solved.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, can monitor the electric fire monitoring system that whether overheated in power equipment and the loop whether residual current transfinites in real time.
For solving the problems of the technologies described above, the utility model provides temp.-measuring type a kind of electric fire monitoring system, comprising: optical fiber temperature monitoring warning device, residual-current electrical fire monitoring detector and alarm monitoring main frame; Also comprise through Ethernet or LAN (Local Area Network) and receive from the monitor message of optical fiber temperature monitoring warning device and residual-current electrical fire monitoring detector respectively and be uploaded to the data concentrator of alarm monitoring main frame; Described alarm monitoring main frame is by Ethernet or LAN (Local Area Network) or GPRS wireless network and monitor workstation real-time communication.Wherein, adopt Optical Fiber Transmission, be not subject to the influence of the electric arc etc. in the high-tension switch cabinet, so be not subject to disturb.In addition, optical fiber itself is non-conductive, is difficult for causing the high-tension switch cabinet electric leakage, thereby has guaranteed the safety of optical fiber temperature-measurement end host, so its reliability is higher.
Described data concentrator also links to each other with the wireless temperature monitoring warning device that is used to receive the wireless monitor information that wireless temperature measure module sends through RS-485 bus or Ethernet or LAN (Local Area Network), thereby the realization wireless temperature monitoring is to solve the situation that special occasions can not connect up.
The utlity model has positive effect: in (1) the utility model, optical fiber temperature monitoring warning device and residual-current electrical fire monitoring detector are respectively applied for the information of the residual current in the monitoring temperature information of power equipment and each loop, data concentrator receives from the monitoring information of optical fiber temperature monitoring warning device and residual-current electrical fire monitoring detector respectively and be uploaded to the alarm monitoring main frame after processing through Ethernet or LAN (Local Area Network), show in real time by the alarm monitoring main frame whether overheated in power equipment and the loop whether residual current transfinites, and in time report to the police when unusual taking place.(2) residual-current electrical fire monitoring detector of the present utility model integrates multiple functions such as excess current, residual current, early warning, warning, control and communication, and the novel electrical safety equipment with intelligent analysis ability.When power-supply unit generation electrical hazard, monitoring detector can send chimes of doom, in time reminds the staff to check fault, gets rid of contingent electric hidden danger, and the accident that prevents takes place.(3) residual-current electrical fire monitoring detector of the present utility model is applicable to the Electrical Safety protection in places such as subway, airport, public's entertainment place, hotel, hotel, school, cultural relics protection unit.Both can do protection and install separately, also can form comprehensive power equipment safety supervisory system with the temp measuring system networking for relatively independent electricity consumption zone.(4) residual-current electrical fire monitoring detector of the present utility model can realize monitoring in real time operational factors such as controlled loop three-phase current, residual current, and shows in real time.If three-phase current, residual current that can detection circuit out-of-limit, then send sound and light signal and report to the police, and internal cutting off current supply circuit (also can be set to not cut off) at the appointed time is to guarantee safety utilization of electric power.Have warning function, when the three-phase current in the controlled loop, residual current reach the early warning value of prior setting, only send the early warning light signal.Make operating personnel can in time handle the abnormal conditions of distribution major loop, reduce unnecessary tripping operation and the generation of avoiding fault.Can carry out the networking communication with host computer by CAN or RS-485 bus, realize long-range dimension management, safeguard, control, for example: carry out long-range setting by CAN or RS-485 bus.The RS-232 communication interface provides the field maintemance function, for example: carry out local maintenance by RS-232 with notebook computer and set, various operational factors are set.(5) in the utility model, the running temperature of temperature monitoring warning device (comprising optical fiber type and wireless type) continuous monitoring equipment contact can be determined the degree of superheat of joint, contact, when overtemperature takes place, sending the indication of reporting to the police.Temperature sensor is installed on the interior charged position of equipment (as the interface up and down of isolating switch and disconnecting link), the digital panel meter of monitor main frame demonstrates the temperature value of each charged contact, and temperature value can be passed to host computer by the RS-485 interface and be for further processing, realize the concentrated monitoring of device temperature.(6) in the utility model, the residual current monitoring detector is monitored operational factors such as controlled loop three-phase current, residual current in real time, integrate multiple functions such as excess current, residual current, early warning, warning, control and communication, and the novel electrical safety equipment with intelligent analysis ability.When power-supply unit generation electrical hazard, the detection controller can send chimes of doom and in time remind the staff to check fault, gets rid of contingent electric hidden danger, and the accident that prevents takes place.(7) electric fire monitoring system of the present utility model can be applicable to the device security monitoring of 1500V dc switch, commutation system and the station 400V important load of occasions, particularly subway such as subway, transformer station, power plant, cable, tunnel, heat supply pipeline, oil and gas pipes.As be used to monitor high-low pressure transmission of electricity cable and busbar joint temperature, high-low pressure (500KV-380V) switch contact temperature, oil pipeline temperature and petrochemical process point temperature and dry-type transformer/oily formula transformer temperature monitoring.
Description of drawings
Fig. 1 is the structured flowchart of the temp.-measuring type electric fire monitoring system among the embodiment.
Fig. 2 is the structured flowchart of the residual-current electrical fire monitoring detector among the embodiment.
Fig. 3 is the circuit block diagram that current signal collecting unit and the threephase current transformer among the embodiment links to each other with residual current transformer.
Fig. 4 is the circuit block diagram of the optical fiber temperature monitoring warning device among the embodiment.
Fig. 5 is the circuit block diagram of the wireless temperature measure module among the embodiment.
Fig. 6 is the circuit block diagram of the wireless data repeater among the embodiment.
Fig. 7 is the circuit block diagram of the wireless temperature monitoring warning device among the embodiment.
Fig. 8 is the circuit block diagram of the alarm monitoring main frame among the embodiment.
Embodiment
See Fig. 1-8, the temp.-measuring type electric fire monitoring system of present embodiment comprises: optical fiber temperature monitoring warning device 8, residual-current electrical fire monitoring detector 5 and alarm monitoring main frame 2; Also comprise through Ethernet or LAN (Local Area Network) and receive from the monitor message of optical fiber temperature monitoring warning device 8 and residual-current electrical fire monitoring detector 5 respectively and be uploaded to the data concentrator 4 of alarm monitoring main frame 2; Described alarm monitoring main frame 2 is by Ethernet or LAN (Local Area Network) or GPRS wireless network and monitor workstation 1 real-time communication.
Described data concentrator 4 also links to each other with the wireless temperature monitoring warning device 7 that is used to receive the wireless monitor information that wireless temperature measure module 9 sends through Ethernet or LAN (Local Area Network).
Carry out long-distance radio communication by wireless data repeater 6 between wireless temperature measure module 9 and the wireless temperature monitoring warning device 7; This wireless data repeater 6 comprises: be used to receive the 3rd wireless transceiver circuit 13 of described wireless monitor information, the logic control that links to each other with the 3rd wireless transceiver circuit 13 and power amplifier 12 and link to each other with logic control and power amplifier 12 be used for the 4th wireless transceiver circuit 14 with the described wireless monitor information of more high-power emission; Logic control and power amplifier 12 are connected with the second keyboard input circuit 17 that is used to set logic control and power amplifier 12 mode of operations.
Described optical fiber temperature monitoring warning device 8 comprises: the first temperature sensor 8-1, the single chip machine controlling circuit 8-2 that links to each other with the temperature signal output terminal of the first temperature sensor 8-1 that is made of the temperature-sensitive quartz crystal, being used for of linking to each other with the temperature signal output terminal of single chip machine controlling circuit 8-2 are converted to the fiber optic modulator 8-3 that light signal links to each other with digital signal, fiber optic modulator 8-3 adopts the multimode optical fiber 11 with protective sleeve, and (protective sleeve plays the protection purpose, and it is frayed that it is difficult for; Adopt multimode optical fiber, can guarantee the unobstructed of light signal communication,, also do not influence the transmission of light signal even if exist during use a certain or some optical fiber to go wrong.) with described Ethernet or LAN (Local Area Network) links to each other or directly link to each other with data concentrator 4; The first temperature sensor 8-1 should be located on the interface up and down or the charged contact in the switch cubicle in interface up and down, handpiece Water Chilling Units loop of interface up and down, the blower fan circuit breaker of interface up and down, the three stage load service entrance switch isolating switchs of switchgear building incoming line cabinet isolating switch.
Described wireless temperature measure module 9 comprises: the second temperature sensor 9-1, the first logic control circuit 9-2 that is suitable for regularly activating work that links to each other with the temperature signal output terminal of the second temperature sensor 9-1, being used for of linking to each other with the temperature signal output of the first logic control circuit 9-2 and transmitting-receiving control end are converted to first wireless transceiver circuit 9-3 of wireless signal and the battery feed circuit 9-4 that links to each other with the first logic control circuit 9-2 with temperature signal.The second temperature sensor 9-1 is located on the interface up and down or the charged contact in the switch cubicle in interface up and down, handpiece Water Chilling Units loop of interface up and down, the blower fan circuit breaker of interface up and down, the three stage load service entrance switch isolating switchs of switchgear building incoming line cabinet isolating switch.For making things convenient for the installation of wireless temperature measure module 9, it uses powered battery.
The described first logic control circuit 9-2 is suitable for regularly activation work, and control the described second temperature sensor 9-1 and the first wireless transceiver circuit 9-3 regularly activates work, the time interval that described timing activates is 25-75s, with the reduction power consumption, thus the serviceable life of prolongation battery.
Described wireless temperature monitoring warning device 7 comprises: the second wireless transceiver circuit 7-2, the wireless interaction control module 7-3 that links to each other with the second wireless transceiver circuit 7-2, being used to of linking to each other with the data output end of wireless interaction control module 7-3 judge whether the described second temperature sensor 9-1 measured temperature surpasses the central control circuit 7-1 of early warning value or alarming value; The temperature signal output terminal of central control circuit 7-1 passes through Ethernet or LAN (Local Area Network) or GPRS wireless network and 1 real-time communication of described monitor workstation through communication interface 7-6; The temperature of central control circuit 7-1 shows that output terminal is connected with the display circuit 7-5 that is used for real-time displays temperature value; The control input end of central control circuit 7-1 is connected with the first keyboard input circuit 7-4 of the address table that is used to import the frequency of wireless receiving and dispatching and is associated with the described first logic control circuit 9-2.
Described residual-current electrical fire monitoring detector 5 comprises: central control unit 5-6; being used for of linking to each other with the current signal input end of central control unit 5-6 monitored the three-phase current signal of controlled loop and the current signal collecting unit 5-5 of residual current signal in real time; being used for of linking to each other with central control unit 5-6 shows the three-phase electricity flow valuve in real time; the residual electricity flow valuve; the liquid crystal display 5-1 of early warning information and warning message, being used for of linking to each other with central control unit 5-6 is connected at the control output interface 5-4 of the protector of described controlled loop; the keyboard 5-2 that is used to realize self check and reset function that links to each other with central control unit 5-6.Keyboard 5-2 comprises: 1. test button: it is a whether operate as normal of test detector, pressing all pilot lamp of back all can light, and relay adhesive sound and the of short duration sound of loudspeaker arranged, show " self check is finished " or " fail self-test " printed words on the LCDs simultaneously, automatically restore to normal operating condition after test is finished.2. noise reduction button: press this key, can eliminate the sound of reporting to the police, when taking place to report to the police, also can trigger audible alarm automatically next time.3. reset key: reset detector, this process can not change parameter content is set.4. four direction key and OK key: turn over screen or carry out parameter setting and modification etc.
Described central control unit 5-6 is connected with the communication interface 5-4 that is used to connect monitor workstation 1 and is used at described three-phase electricity flow valuve, the LED indication and the voice alarm circuit 5-3 that point out when the residual electricity flow valuve reaches corresponding preset value respectively; Current signal collecting unit 5-5 has the current signal input end that is used to connect threephase current transformer and residual current transformer.Wherein, the function of LED light circuit: 1. power light: show and survey whether energized of controller, should be green normal bright state after the energising.2. run indicator: show and survey whether normally operation of controller, should be green blink states when normally moving, be about 1 second interval time.3. communication pilot lamp: between detector display board and the master control borad communication whether normal, normally should be green blink states.4. early warning pilot lamp: when the early warning incident takes place, show as yellow normal bright state, remind the staff in time to check fault, get rid of contingent electric hidden danger.5. alarm lamp: when alert event takes place, show as red normal bright state, send alarm sound simultaneously, this expression is with the overburden situation occurring in the electric line, and the prompting staff in time solves processing.6. the pilot lamp of threading off: when being set to trip status, when alert event took place, actuating of relay dropout pilot lamp be the normal bright state of redness.
Liquid crystal display 5-1 shows the three-phase working current value in real time, when working current value reaches early warning and alarming, can jump to " early warning and alarming " window automatically, and prompting early warning, warning message, if the corresponding early-warning lamp of early warning can light, if the corresponding alarm lamp of reporting to the police can be lighted and with audible alarm.Liquid crystal display also shows the residual electricity flow valuve in real time, when working current value reaches early warning and alarming, " early warning and alarming " window can be pointed out early warning, warning message, if the corresponding early-warning lamp of early warning can light, if the corresponding alarm lamp of reporting to the police can be lighted and with audible alarm.
Described data concentrator 4 comprises: LCD display 4-2 and warning output circuit 4-4 that the optical fiber detuner 4-3 that links to each other with optical fiber temperature monitoring warning device 8 by optical fiber 11, central controller 4-1, the central controller 4-1 that links to each other with the data output end of optical fiber detuner 4-3 link to each other.
Alarm monitoring main frame 2 comprises: central control module 2-1, being used for of linking to each other with central control module 2-1 are connected the bus interface 2-6 of temp.-measuring type electrical fire detector and residual-current electrical fire detector and the communication interface 2-4 that is used to be connected monitor workstation by optical fiber; Described central control module 2-1 also is connected with the liquid crystal display 2-2 of the three-phase current that is used for showing in real time temp.-measuring type electrical fire detector and records, residual current that the residual-current electrical fire detector records; Described central control module 2-1 also is connected with the printer 2-3 of the historical data that is used to print described three-phase current and residual current; Described optical fiber is the multimode optical fiber with protective sleeve; Described central control module 2-1 also is connected with and is used for reporting to the police when described three-phase current or residual current transfinite or the alarm unit 2-7 of early warning.
Described protector (being isolating switch) adopts time-delay to be the time lagged type protector of 0.4s, is used to eliminate the protector misoperation that causes because of intermediate frequency, high frequency, frequency conversion equipment.
For making things convenient for the installation of optical fiber temperature monitoring warning device 8, it uses powered battery.Described single chip machine controlling circuit 8-2 is suitable for regularly activation work, after the single chip machine controlling circuit 8-2 activation work, control that the first temperature sensor 8-1 begins temperature survey and after obtaining temperature signal, single chip machine controlling circuit 8-2 activate optical fibre modulator 8-3 work, to reduce power consumption, thereby prolong the serviceable life of battery, made things convenient for work such as maintenance; The time interval that described timing activates is 25-75s.
Data concentrator 4 also can be to insert from Ethernet or LAN by the RS-485 bus, then signal is directly issued monitoring host computer 2 or is directly issued monitor workstation 1.
Claims (8)
1. a temp.-measuring type electric fire monitoring system is characterized in that comprising: optical fiber temperature monitoring warning device (8), residual-current electrical fire monitoring detector (5) and alarm monitoring main frame (2); Also comprise through Ethernet or LAN (Local Area Network) and receive from the monitor message of optical fiber temperature monitoring warning device (8) and residual-current electrical fire monitoring detector (5) respectively and be uploaded to the data concentrator (4) of alarm monitoring main frame (2); Described alarm monitoring main frame (2) is by Ethernet or LAN (Local Area Network) or GPRS wireless network and monitor workstation (1) real-time communication.
2. a kind of temp.-measuring type electric fire monitoring system according to claim 1 is characterized in that: described data concentrator (4) also links to each other with the wireless temperature monitoring warning device (7) that is used to receive the wireless monitor information that wireless temperature measure module (9) sends through Ethernet or LAN (Local Area Network).
3. a kind of temp.-measuring type electric fire monitoring system according to claim 2 is characterized in that: carry out long-distance radio communication by wireless data repeater (6) between wireless temperature measure module (9) and the wireless temperature monitoring warning device (7); This wireless data repeater (6) comprising: be used to receive the 3rd wireless transceiver circuit (13) of described wireless monitor information, the logic control that links to each other with the 3rd wireless transceiver circuit (13) and power amplifier (12) and link to each other with logic control and power amplifier (12) be used for the 4th wireless transceiver circuit (14) with the described wireless monitor information of more high-power emission; Logic control and power amplifier (12) are connected with the second keyboard input circuit (17) that is used to set logic control and power amplifier (12) mode of operation.
4. a kind of temp.-measuring type electric fire monitoring system according to claim 3, it is characterized in that: described optical fiber temperature monitoring warning device (8) comprising: first temperature sensor (8-1) that is made of the temperature-sensitive quartz crystal, the single chip machine controlling circuit (8-2) that links to each other with the temperature signal output terminal of first temperature sensor (8-1), being used for of linking to each other with the temperature signal output terminal of single chip machine controlling circuit (8-2) is converted to the fiber optic modulator (8-3) that light signal links to each other with digital signal, and fiber optic modulator (8-3) adopts multimode optical fiber (11) with protective sleeve and described Ethernet or LAN (Local Area Network) links to each other or directly link to each other with data concentrator (4); This is located at first temperature sensor (8-1) on the interface up and down or the charged contact in the switch cubicle in interface up and down, handpiece Water Chilling Units loop of interface up and down, the blower fan circuit breaker of interface up and down, the three stage load service entrance switch isolating switchs of switchgear building incoming line cabinet isolating switch.
5. a kind of temp.-measuring type electric fire monitoring system according to claim 2 is characterized in that: described wireless temperature measure module (9) comprising: second temperature sensor (9-1), first logic control circuit (9-2) that is suitable for regularly activating work that links to each other with the temperature signal output terminal of second temperature sensor (9-1), first wireless transceiver circuit (9-3) that is used for temperature signal is converted to wireless signal that links to each other with the temperature signal output and the transmitting-receiving control end of first logic control circuit (9-2), and the battery feed circuit (9-4) that links to each other with first logic control circuit (9-2);
Described wireless temperature monitoring warning device (7) comprising: second wireless transceiver circuit (7-2), the wireless interaction control module (7-3) that links to each other with second wireless transceiver circuit (7-2), being used to of linking to each other with the data output end of wireless interaction control module (7-3) judge whether described second temperature sensor (9-1) measured temperature surpasses the central control circuit (7-1) of early warning value or alarming value; The temperature signal output terminal of central control circuit (7-1) passes through Ethernet or LAN (Local Area Network) or GPRS wireless network and described monitor workstation (1) real-time communication through communication interface (7-6); The temperature of central control circuit (7-1) shows that output terminal is connected with the display circuit (7-5) that is used for real-time displays temperature value; The control input end of central control circuit (7-1) is connected with the first keyboard input circuit (7-4) of the address table that is used to import the frequency of wireless receiving and dispatching and is associated with described first logic control circuit (9-2).
6. a kind of temp.-measuring type electric fire monitoring system according to claim 1; it is characterized in that: described residual-current electrical fire monitoring detector (5) comprising: central control unit (5-6); being used for of linking to each other with the current signal input end of central control unit (5-6) monitored the three-phase current signal of controlled loop and the current signal collecting unit (5-5) of residual current signal in real time; being used for of linking to each other with central control unit (5-6) shows the three-phase electricity flow valuve in real time; the residual electricity flow valuve; the liquid crystal display of early warning information and warning message (5-1), being used for of linking to each other with central control unit (5-6) is connected at the control output interface (5-4) of the protector of described controlled loop; the keyboard that is used to realize self check and reset function (5-2) that links to each other with central control unit (5-6).
7. a kind of temp.-measuring type electric fire monitoring system according to claim 1 is characterized in that: described data concentrator (4) comprising: optical fiber detuner (4-3), continuous LCD display (4-2) and the warning output circuit (4-4) of the central controller (4-1), the central controller (4-1) that link to each other with the data output end of optical fiber detuner (4-3);
Alarm monitoring main frame (2) comprising: central control module (2-1), with central control module (2-1) continuous be used for the communication interface (2-4) that is connected the bus interface (2-6) of temp.-measuring type electrical fire detector and residual-current electrical fire detector and is used to be connected monitor workstation by optical fiber; Described central control module (2-1) also is connected with the liquid crystal display (2-2) of the three-phase current that is used for showing in real time temp.-measuring type electrical fire detector and records, residual current that the residual-current electrical fire detector records; Described central control module (2-1) also is connected with the printer (2-3) of the historical data that is used to print described three-phase current and residual current; Described optical fiber is the multimode optical fiber with protective sleeve; Described central control module (2-1) also is connected with and is used for reporting to the police when described three-phase current or residual current transfinite or the alarm unit (2-7) of early warning.
8. a kind of temp.-measuring type electric fire monitoring system according to claim 6 is characterized in that: described central control unit (5-6) is connected with the communication interface (5-4) that is used to connect monitor workstation (1) and is used in described three-phase electricity flow valuve, the LED indication of pointing out when the residual electricity flow valuve reaches corresponding preset value respectively and voice alarm circuit (5-3); Current signal collecting unit (5-5) has the current signal input end that is used to connect threephase current transformer and residual current transformer.
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| CN2009201623752U CN201562335U (en) | 2009-07-04 | 2009-07-04 | Temperature measurement type electric fire monitoring system |
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| CN2009201623752U CN201562335U (en) | 2009-07-04 | 2009-07-04 | Temperature measurement type electric fire monitoring system |
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| CN101944277A (en) * | 2010-09-30 | 2011-01-12 | 深圳市豪恩安全科技有限公司 | Alarm system |
| CN101976496A (en) * | 2010-09-30 | 2011-02-16 | 深圳市豪恩安全科技有限公司 | Wireless detector and alarm system |
| CN102509412A (en) * | 2011-11-01 | 2012-06-20 | 福瑞特国际电气(中山)有限公司 | Internet of things platform of electrical fire monitoring system |
| CN102636286A (en) * | 2012-03-25 | 2012-08-15 | 河南省电力公司安阳供电公司 | High-voltage falling switch contact temperature detection device |
| CN102716565A (en) * | 2012-07-02 | 2012-10-10 | 中国建筑东北设计研究院有限公司 | Open type integrated fire fighting system |
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| CN101964130B (en) * | 2009-07-22 | 2014-01-29 | 顾海勇 | Temperature measuring type electrical fire monitoring system |
| CN103927841A (en) * | 2013-01-14 | 2014-07-16 | 孙巍巍 | Novel electrical fire monitoring system |
| CN104316751A (en) * | 2014-10-21 | 2015-01-28 | 国家电网公司 | Remote three-phase current pre-warning device |
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| CN105427507A (en) * | 2015-12-04 | 2016-03-23 | 广东欧珀移动通信有限公司 | Fire monitoring method and device |
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| CN101964130B (en) * | 2009-07-22 | 2014-01-29 | 顾海勇 | Temperature measuring type electrical fire monitoring system |
| CN101976496A (en) * | 2010-09-30 | 2011-02-16 | 深圳市豪恩安全科技有限公司 | Wireless detector and alarm system |
| CN101944277A (en) * | 2010-09-30 | 2011-01-12 | 深圳市豪恩安全科技有限公司 | Alarm system |
| CN102509412A (en) * | 2011-11-01 | 2012-06-20 | 福瑞特国际电气(中山)有限公司 | Internet of things platform of electrical fire monitoring system |
| CN102636286A (en) * | 2012-03-25 | 2012-08-15 | 河南省电力公司安阳供电公司 | High-voltage falling switch contact temperature detection device |
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