CN201955865U - Comprehensive electrical fire monitoring equipment - Google Patents
Comprehensive electrical fire monitoring equipment Download PDFInfo
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- CN201955865U CN201955865U CN2011200183131U CN201120018313U CN201955865U CN 201955865 U CN201955865 U CN 201955865U CN 2011200183131 U CN2011200183131 U CN 2011200183131U CN 201120018313 U CN201120018313 U CN 201120018313U CN 201955865 U CN201955865 U CN 201955865U
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- signal
- contact point
- residual current
- point temperature
- control device
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Abstract
Comprehensive electrical fire monitoring equipment comprises a contact point temperature detector, a residual current detector, a Bluetooth transmitter, a Bluetooth receiver, a control device, a first display screen and an alarm device, wherein the contact point temperature detector is used for detecting the temperature of contact points of electrical equipment, the residual current detector is used for detecting residual current signals, the Bluetooth transmitter is used for receiving contact point temperature signals and the residual current signals and transmitting the signals after radio-frequency conversion for the signals, the Bluetooth receiver is used for receiving signals transmitted by the Bluetooth transmitter and transmitting the signals to a data processing device after radio-frequency demodulation, and the control device is used for transmitting the received signals to the first display screen and transmitting alarm signals to the alarm device according to the residual current signals and the contact point temperature signals. By the aid of Bluetooth wireless transmission of the contact point temperature signals and the residual current signals, the comprehensive electrical fire monitoring equipment is capable of avoiding the problems of electromagnetic interference and strong electrical interference in transmission, and also capable of avoiding the problem of the effect of aging of cable insulating sheaths on detecting signal transmission accuracy, so that accuracy of electrical fire monitoring is improved.
Description
Technical field
The utility model relates to the electronic monitoring equipment field, relates in particular to a kind of electrical fire comprehensively monitoring equipment.
Background technology
Along with electrical equipment is used widely, the electrical fire that is directly or indirectly caused by electric wiring also increases thereupon.Electrical fire on fire mainly contains three kinds of modes: 1, electric spark and electric arc; 2, electrical equipment or circuit overload or electric leakage generation high temperature cause; 3, because the electric current contact loose contact produces high temperature.Owing to cable serious aging or loose contact cause the incidence of fire to improve constantly, at above-mentioned situation, some electrical fire comprehensively monitoring equipment have appearred in the market.
Existing electrical fire comprehensively monitoring equipment comprises contact point hygrosensor, residual current detector, data processing equipment, to display screen and warning device that detection data shows, the data that hygrosensor and residual current detector are surveyed are given data processing equipment by cable transmission; Data processing equipment sends it to the display screen demonstration after receiving detection data, simultaneously data processing equipment compares detection data that receives and the threshold temperature signal that is provided with in it or threshold value residual current signal, reports to the police by warning device when above threshold temperature signal or threshold value residual current signal.
Because the electrical fire comprehensively monitoring equipment of prior art is given data processing equipment by cable transmission, and cable transmission is easy to produce electromagnetic interference (EMI) and forceful electric power disturbs, thereby the electrical fire comprehensively monitoring equipment of prior art can influence the accuracy of detectable signal transmission.In addition, the insulated hull of cable also is easy to influence the accuracy that detectable signal transmits because of aging.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and a kind of electrical fire comprehensively monitoring equipment of avoiding electromagnetic interference (EMI) in the transmission course and forceful electric power to disturb, improve the electric fire disaster monitoring accuracy is provided.
The purpose of this utility model realizes by following technical measures:
A kind of electrical fire comprehensively monitoring equipment comprises: be used to detect the residual current signal of the contact point hygrosensor of electrical equipment contact point temperature, the residual current detector that is used to detect current signal between electrical equipment live wire and the ground wire, the contact point temperature signal that receives described contact point hygrosensor detection and the detection of described residual current detector and it is carried out being sent to after radio frequency is changed the bluetooth transmitters of Bluetooth Receiver; Be used to receive contact point temperature signal that described bluetooth transmitters sends and residual current signal and it is carried out being sent to behind the radio demodulating Bluetooth Receiver of data processing equipment; Be used for that the residual current signal of described reception and contact point temperature signal be sent to first display screen and send the control device of alerting signal according to residual current signal and contact point temperature signal to warning device; Be used to show the residual current signal of described control device transmission and first display screen of contact point temperature signal; Be used for sending the warning device of warning according to the alerting signal that described control device sends; The contact point temperature output terminal of described contact point hygrosensor is connected with the contact point temperature input end of described bluetooth transmitters, the current output terminal of described residual current detector is connected with the current input terminal of described bluetooth transmitters, the Bluetooth signal transmitting terminal of described bluetooth transmitters is corresponding with the Bluetooth signal receiving end of described Bluetooth Receiver, the detectable signal output terminal of described Bluetooth Receiver is connected with the point type detectable signal input end of described control device, the first detectable signal output terminal of described control device is connected with the detectable signal input end of described first display screen, and the alarm signal output ends of described control device is connected with the alerting signal input end of described warning device.
Preferably, the contact point temperature signal and the residual current signal of above-mentioned bluetooth transmitters reception are digital baseband signal; Described bluetooth transmitters comprises: the numerical frequency mixer that is used for described digital baseband signal is modulated to intermediate-freuqncy signal; Be used for the phaselocked loop of described intermediate-freuqncy signal frequency multiplication to radiofrequency signal; Be used for power amplifier that described radiofrequency signal is amplified; Be used for transmitting antenna that the emission of radio frequency signals after amplifying is gone out.
Preferably, above-mentioned Bluetooth Receiver comprises: the receiving antenna that is used for received RF signal; Be used for low noise amplifier that the radiofrequency signal of described reception is amplified; Being used for the radiofrequency signal frequency conversion after amplifying is the frequency mixer of intermediate-freuqncy signal; Be used for gain amplifier that intermediate-freuqncy signal is amplified; Be used for amplified IF signal is modulated to the detuner of baseband digital signal.
Preferably, above-mentioned electrical fire comprehensively monitoring equipment also comprises and is used to detect and the optical fiber temperature-measurement device of transmission line type measured body temperature, is used to receive and show second display screen of the line style measured body temperature signal that described control device sends; Described control device sends alerting signal according to the residual current signal that is received, contact point temperature signal and line style measured body temperature signal to described warning device; The line style measured body temperature signal output terminal of described optical fiber temperature-measurement device is connected with the line style measured body temperature signal input end of described control device, and the line style measured body temperature signal output terminal of described control device is connected with the line style measured body temperature signal input end of described second display screen.
The beneficial effects of the utility model: transmit contact point temperature signal and residual current signal because electrical fire comprehensively monitoring equipment of the present utility model receives the transmission of detectable signal by bluetooth transmitters and Bluetooth Receiver, promptly by Bluetooth wireless transmission contact point temperature signal and residual current signal, therefore electrical fire comprehensively monitoring equipment of the present utility model can avoid occurring the electromagnetic interference (EMI) and the forceful electric power interference problem that cable transmission causes of passing through of prior art, can avoid also occurring that insulated hull because of cable is aging influence the problem that detectable signal transmits accuracy, so electrical fire comprehensively monitoring equipment of the present utility model can improve the accuracy of electric fire disaster monitoring.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of first kind of embodiment of a kind of electrical fire comprehensively monitoring equipment of the present utility model;
Fig. 2 is the structural representation of second kind of embodiment of a kind of electrical fire comprehensively monitoring equipment of the present utility model.
Embodiment
With accompanying drawing the utility model is further described with the following Examples:
The disclosed a kind of electrical fire comprehensively monitoring equipment of the utility model, as shown in Figure 1, comprising: be used to detect the residual current signal of the contact point hygrosensor 10 of electrical equipment contact point temperature, the residual current detector 20 that is used to detect current signal between electrical equipment live wire and the ground wire, the contact point temperature signal that receives described contact point hygrosensor 10 detections and 20 detections of described residual current detector and it is carried out being sent to after radio frequency is changed the bluetooth transmitters 30 of Bluetooth Receiver 40; Be used to receive contact point temperature signal that described bluetooth transmitters 30 sends and residual current signal and it is carried out being sent to behind the radio demodulating Bluetooth Receiver 40 of data processing equipment; Be used for that the residual current signal of described reception and contact point temperature signal be sent to first display screen 70 and send the control device 50 of alerting signals according to residual current signal and contact point temperature signal to warning device 60; Be used to show the residual current signal of described control device transmission and first display screen 70 of contact point temperature signal; Be used for sending the warning device 60 of warning according to the alerting signal that described control device 50 sends; The contact point temperature output terminal of described contact point hygrosensor 10 is connected with the contact point temperature input end of described bluetooth transmitters 30, the current output terminal of described residual current detector 20 is connected with the current input terminal of described bluetooth transmitters 30, the Bluetooth signal transmitting terminal of described bluetooth transmitters 30 is corresponding with the Bluetooth signal receiving end of described Bluetooth Receiver 40, the detectable signal output terminal of described Bluetooth Receiver 40 is connected with the point type detectable signal input end of described control device 50, the first detectable signal output terminal of described control device 50 is connected with the detectable signal input end of described first display screen 70, and the alarm signal output ends of described control device 50 is connected with the alerting signal input end of described warning device 60.
Particularly, contact point hygrosensor 10 detects electrical equipment contact point temperature, and this electrical equipment is according to the difference of use occasion and difference, for example can be high and low voltage switch contact and cable splice or the like cashier's office in a shop.Electrical equipment contact point temperature be the reflection contact position of electrical equipment in operational process whether contact is good, the too high reflection loose contact of temperature is easy to generate apparatus overheat and causes fire.
The residual current signal is the current value between live wire and the ground wire, judges by real-time detection residual current signal whether consumer has electric leakage and circuit whether to have insulativity whether low excessively.Because whether electric leakage and circuit have insulativity is low excessively to be easy to generate the electric leakage accident and so to cause that cable is on fire and lead to the fire disaster.
Because receiving, the transmission of electrical fire comprehensively monitoring equipment of the present utility model by bluetooth transmitters 30 and 40 pairs of detectable signals of Bluetooth Receiver transmit contact point temperature signal and residual current signal, promptly by Bluetooth wireless transmission contact point temperature signal and residual current signal, therefore electrical fire comprehensively monitoring equipment of the present utility model can avoid occurring the electromagnetic interference (EMI) and the forceful electric power interference problem that cable transmission causes of passing through of prior art, can avoid also occurring that insulated hull because of cable is aging influence the problem that detectable signal transmits accuracy, so electrical fire comprehensively monitoring equipment of the present utility model can improve the accuracy of electric fire disaster monitoring.
Preferably, as shown in Figure 2, contact point temperature signal and residual current signal that bluetooth transmitters 30 receives are digital baseband signal; Described bluetooth transmitters 30 comprises: the numerical frequency mixer 31 that is used for described digital baseband signal is modulated to intermediate-freuqncy signal; Be used for the phaselocked loop 32 of described intermediate-freuqncy signal frequency multiplication to radiofrequency signal; Be used for power amplifier 33 that described radiofrequency signal is amplified; Be used for transmitting antenna 34 that the emission of radio frequency signals after amplifying is gone out.Particularly, digital baseband signal is modulated to intermediate-freuqncy signal through numerical frequency mixer 31, and this intermediate-freuqncy signal is passed through phaselocked loop 32 frequencys multiplication to radiofrequency signal, at last by launching by antenna behind power amplifier 33 amplifying signals.
Preferably, as shown in Figure 2, Bluetooth Receiver 40 comprises: the receiving antenna 41 that is used for received RF signal; Be used for low noise amplifier 42 that the radiofrequency signal of described reception is amplified; Being used for the radiofrequency signal frequency conversion after amplifying is the frequency mixer 43 of intermediate-freuqncy signal; Be used for gain amplifier 44 that intermediate-freuqncy signal is amplified; Be used for amplified IF signal is modulated to the detuner 45 of baseband digital signal.
Particularly, receiving antenna 41 received RF signals, low noise amplifier 42 amplifies the radiofrequency signal that is received, radiofrequency signal obtains the gain of 13 dB by low noise amplifier 42, radiofrequency signal frequency conversion after frequency mixer 43 will amplify is an intermediate-freuqncy signal, gain amplifier 44 further amplifies this intermediate-freuqncy signal, intermediate-freuqncy signal obtains the gain of 80dB by gain amplifier 44, adopt the FM/FSK modulation system that amplified IF signal is modulated to baseband digital signal by detuner 45 at last, this baseband digital signal transfers to control device 50 and handles.
Preferably, as shown in Figure 2, electrical fire comprehensively monitoring equipment also comprises and is used to detect and the optical fiber temperature-measurement device 80 of transmission line type measured body temperature, is used to receive and show second display screen 90 of the line style measured body temperature signal that described control device 50 sends; Described control device 50 sends alerting signal according to the residual current signal that is received, contact point temperature signal and line style measured body temperature signal to described warning device 60; The line style measured body temperature signal output terminal of described optical fiber temperature-measurement device 80 is connected with the line style measured body temperature signal input end of described control device 50, and the line style measured body temperature signal output terminal of described control device 50 is connected with the line style measured body temperature signal input end of described second display screen 90.Particularly, the line style measured body can be tunnel space, cable, cable duct, cable testing bridge etc.
Line style measured body temperature signal can be the temperature signal between Close Tunnel or between pipe line area.Line style measured body temperature signal is the detection data of continuous distribution, and whether reflection line style measured body temperature is owing to overload causes fire failure.
The backscattering that optical fiber temperature-measurement device 80 utilizes laser to produce in transmitting in optical fiber, inject the laser pulse of certain energy and width at optical fiber, laser pulse constantly produces the backscattering light wave in Optical Fiber Transmission, the state of these backscattering light waves is subjected to the temperature effect of fibre scattering point, and the light wave that scattering is returned just can obtain temperature signal after wavelength-division multiplex, detection demodulation.
Electrical fire comprehensively monitoring equipment of the present utility model can detect residual current signal, contact point temperature signal and line style measured body temperature signal simultaneously, and show different detection signals by first display screen 70 with second display screen 90 respectively, thereby can better monitor electrical fire.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; and anti-phase restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (4)
1. an electrical fire comprehensively monitoring equipment is characterized in that, comprising:
Be used to detect the residual current signal of the contact point hygrosensor of electrical equipment contact point temperature, the residual current detector that is used to detect current signal between electrical equipment live wire and the ground wire, the contact point temperature signal that receives described contact point hygrosensor detection and the detection of described residual current detector and it is carried out being sent to after radio frequency is changed the bluetooth transmitters of Bluetooth Receiver; Be used to receive contact point temperature signal that described bluetooth transmitters sends and residual current signal and it is carried out being sent to behind the radio demodulating Bluetooth Receiver of data processing equipment; Be used for that the residual current signal of described reception and contact point temperature signal be sent to first display screen and send the control device of alerting signal according to residual current signal and contact point temperature signal to warning device; Be used to show the residual current signal of described control device transmission and first display screen of contact point temperature signal; Be used for sending the warning device of warning according to the alerting signal that described control device sends;
The contact point temperature output terminal of described contact point hygrosensor is connected with the contact point temperature input end of described bluetooth transmitters, the current output terminal of described residual current detector is connected with the current input terminal of described bluetooth transmitters, the Bluetooth signal transmitting terminal of described bluetooth transmitters is corresponding with the Bluetooth signal receiving end of described Bluetooth Receiver, the detectable signal output terminal of described Bluetooth Receiver is connected with the point type detectable signal input end of described control device, the first detectable signal output terminal of described control device is connected with the detectable signal input end of described first display screen, and the alarm signal output ends of described control device is connected with the alerting signal input end of described warning device.
2. electrical fire comprehensively monitoring equipment according to claim 1 is characterized in that, contact point temperature signal and residual current signal that described bluetooth transmitters receives are digital baseband signal;
Described bluetooth transmitters comprises:
Be used for described digital baseband signal is modulated to the numerical frequency mixer of intermediate-freuqncy signal;
Be used for the phaselocked loop of described intermediate-freuqncy signal frequency multiplication to radiofrequency signal;
Be used for power amplifier that described radiofrequency signal is amplified;
Be used for transmitting antenna that the emission of radio frequency signals after amplifying is gone out.
3. electrical fire comprehensively monitoring equipment according to claim 2 is characterized in that described Bluetooth Receiver comprises:
The receiving antenna that is used for received RF signal;
Be used for low noise amplifier that the radiofrequency signal of described reception is amplified;
Being used for the radiofrequency signal frequency conversion after amplifying is the frequency mixer of intermediate-freuqncy signal;
Be used for gain amplifier that intermediate-freuqncy signal is amplified;
Be used for amplified IF signal is modulated to the detuner of baseband digital signal.
4. electrical fire comprehensively monitoring equipment according to claim 1, it is characterized in that described electrical fire comprehensively monitoring equipment also comprises and is used to detect and the optical fiber temperature-measurement device of transmission line type measured body temperature, is used to receive and show second display screen of the line style measured body temperature signal that described control device sends; Described control device sends alerting signal according to the residual current signal that is received, contact point temperature signal and line style measured body temperature signal to described warning device;
The line style measured body temperature signal output terminal of described optical fiber temperature-measurement device is connected with the line style measured body temperature signal input end of described control device, and the line style measured body temperature signal output terminal of described control device is connected with the line style measured body temperature signal input end of described second display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183131U CN201955865U (en) | 2011-01-20 | 2011-01-20 | Comprehensive electrical fire monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183131U CN201955865U (en) | 2011-01-20 | 2011-01-20 | Comprehensive electrical fire monitoring equipment |
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| Publication Number | Publication Date |
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| CN201955865U true CN201955865U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200183131U Expired - Fee Related CN201955865U (en) | 2011-01-20 | 2011-01-20 | Comprehensive electrical fire monitoring equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930701A (en) * | 2012-10-25 | 2013-02-13 | 歌尔声学股份有限公司 | Alarm system and realizing method thereof |
| CN109029748A (en) * | 2017-06-10 | 2018-12-18 | 北京万览时代网络科技有限公司 | High-tension cable temperature detecting alarm system |
-
2011
- 2011-01-20 CN CN2011200183131U patent/CN201955865U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930701A (en) * | 2012-10-25 | 2013-02-13 | 歌尔声学股份有限公司 | Alarm system and realizing method thereof |
| CN102930701B (en) * | 2012-10-25 | 2015-10-14 | 歌尔声学股份有限公司 | The implementation method of a kind of warning system and a kind of warning system |
| CN109029748A (en) * | 2017-06-10 | 2018-12-18 | 北京万览时代网络科技有限公司 | High-tension cable temperature detecting alarm system |
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Legal Events
| 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 |
Granted publication date: 20110831 Termination date: 20160120 |
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| EXPY | Termination of patent right or utility model |