CN102214384B - Line type temperature sensor of terminal with gas discharge tube - Google Patents
Line type temperature sensor of terminal with gas discharge tube Download PDFInfo
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- CN102214384B CN102214384B CN201110087224A CN201110087224A CN102214384B CN 102214384 B CN102214384 B CN 102214384B CN 201110087224 A CN201110087224 A CN 201110087224A CN 201110087224 A CN201110087224 A CN 201110087224A CN 102214384 B CN102214384 B CN 102214384B
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- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention aims at providing a line type temperature sensor of a terminal with a gas discharge tube. After the terminal falls off or is disconnected, or a temperature-sensing cable detects that a conductor is disconnected, a micro computer modulator of the line type temperature sensor can normally detect the temperature-sensing cable well connected with the micro computer modulator. The line type temperature sensor of the terminal with a gas discharge tube is characterized in that two ends of the temperature-sensing cable are respectively connected with the micro computer modulator and the gas discharge tube of the terminal to form an electric signal acquisition circuit of an open circuit of the terminal. The obvious advantages are that the terminal is only provided with the gas discharge tube, therefore, the micro computer modulator has simple control and detection logics, the line type temperature sensor has a simple structure, the production cost is lowered and the reliability is improved.
Description
Technical field
The present invention relates to a kind of cable linear temperature sensing warning device, a kind of recovered cable linear different constant temperature fire detector that has the gas discharge tube terminal.
Technical background
A kind of alarm method that is used to have the line-type heat detector of two constant temperature alarming threshold values of the prior art; The disclosed a kind of alarm method that is used to have the line-type heat detector of two constant temperature alarming threshold values of Chinese patent Granted publication CN101101694A; The line-type heat detector with two constant temperature alarming threshold values that is adopted comprises linear temperature sensor, is connected an end of linear temperature sensor; The boxcar 5 ' that can be in real time the temperature of temperature sensing element or warning electrical quantity or sampled value be detected; And be connected the other end of linear temperature sensor; And linear temperature sensor worked the terminal resistance 4 ' of the supervision effect of opening circuit; Wherein linear temperature sensor comprises two parallel detecting conductors that are provided with 1 ', 2 ' and the NTC characteristic barrier layer 3 ' that walks abreast between the detecting conductor 1 ', 2 ' that is provided with.The constant temperature warning in normal operation of this detector is an alarming threshold value; Constant temperature occurring under the open circuit fault situation at linear temperature sensor reports to the police and switches to another alarming threshold value; This technological shortcoming is to need to set two constant temperature alarming threshold values, sets complicated.
A kind of line-type heat detector that has the electronic switch main part of the prior art; The disclosed a kind of line-type heat detector that has the electronic switch main part of Chinese patent Granted publication CN101123026A; A kind of line-type heat detector that has the electronic switch main part that is adopted comprises linear temperature sensor, is connected an end of linear temperature sensor; Can be in real time to temperature or warning electrical quantity or the sampled value boxcar 5 ' that detects and the electronic switch 8 ' that is connected the linear temperature sensor other end of temperature sensing element; Wherein linear temperature sensor comprises two parallel detecting conductors 1 ' that are provided with; 2 ' with the parallel detecting conductor 1 ', 2 ' that is provided with between NTC characteristic barrier layer 3 '.The unlatching that this detector is alternately controlled electronic switch assembly 8 ' by boxcar 5 ' is with closed, and when electronic switch assembly is in opening, boxcar 5 ' detects the change in resistance of linear temperature sensor; When detected resistance surpassed the setting alarming threshold value, detector sent fire alarm signal, when electronic switch assembly is in closed condition; Boxcar 5 ' detects the resistance of linear temperature sensor, and when detected resistance was excessive, detector sent failure alarm signal; The shortcoming of the detector that is somebody's turn to do is: the terminal is provided with electronic switch assembly 8 '; Article two, the parallel detecting conductor that is provided with 1 ', 2 ' is both as the power lead of terminal electronic switch module 8 ', is again simultaneously detecting conductor 1 ', 2 ' line body resistance detection line, and the logic complicacy is loaded down with trivial details; Production cost is high, and reliability is low.
Summary of the invention
In order to address the above problem; The purpose of this invention is to provide a kind of line type temperature perceptron that has the gas discharge tube terminal; Take place after the terminal comes off or open circuit in the terminal or the temperature sensing cable detecting conductor opens circuit at the line style temperature sensor, the microcomputer modulator of line type temperature perceptron still can normally detect and be connected intact section temperature sensing cable with microcomputer modulator.
In order to achieve the above object, a kind of line type temperature perceptron that has the gas discharge tube terminal of the present invention is the signal acquisition circuit that is connected to form the terminal open circuit by the temperature sensing cable two ends respectively with microcomputer modulator and terminal gas-discharge tube.Microcomputer modulator detects change in resistance between the two strip metal detecting conductors of temperature sensing cable in real time, when the change in electric amount greater than one fixedly during threshold values, microcomputer modulator sends the constant temperature alerting signal.And microcomputer modulator is regularly to applying one greater than the voltage of microcomputer modulator to the normal detection voltage of temperature sensing cable between two strip metal detecting conductors; Microcomputer modulator detects this voltage; When detected voltage greater than a fixed voltage value, explain that opening circuit does not appear in two strip metal detecting conductors of temperature sensing cable, when detected voltage less than a fixed voltage value; The two strip metal detecting conductors that temperature sensing cable is described open circuit; Microcomputer modulator sends the open circuit fault alerting signal, and after microcomputer modulator sent the open circuit fault alerting signal, microcomputer modulator continued to detect the change in resistance of two strip metal detecting conductors; When the change in electric amount greater than one fixedly during threshold values, microcomputer modulator sends the temperature-sensitive alerting signal.
A kind of outstanding advantage that has the line type temperature perceptron of gas discharge tube terminal of the present invention is: the terminal only is provided with gas-discharge tube; So microcomputer modulator control detection logic is simple; The present invention simultaneously is a kind of, and to have the line type temperature perceptron of gas discharge tube terminal simple in structure; Production cost reduces, and reliability improves.
Description of drawings
Fig. 1 is a kind of alarm method synoptic diagram that is used to have the line-type heat detector of two constant temperature alarming threshold values of prior art;
Fig. 2 is a kind of line-type heat detector structural representation that has the electronic switch main part of prior art;
Fig. 3 is a kind of line type temperature perceptron embodiment 1 structural representation that has the gas discharge tube terminal of the present invention;
Fig. 4 is a kind of line type temperature perceptron embodiment 2 structural representations that have the gas discharge tube terminal of the present invention.
Embodiment
A kind of line type temperature perceptron that has the gas discharge tube terminal; Embodiment 1; Referring to Fig. 3; Mainly be the signal acquisition circuit that is connected to form the terminal open circuit by the temperature sensing cable two ends respectively with microcomputer modulator 5 and terminal gas-discharge tube 6, it is characterized in that: the temperature sensing cable terminal only is provided with gas-discharge tube 6.Said temperature sensing cable is by two strip metal detecting conductors 1, is provided with negative temperature coefficient thermistor composition layer 3 between 2; Being provided with two strip metal detecting conductors 1,2 of negative temperature coefficient thermistor composition layer 3 can be parallel or twist together; Extrusion molding external sheath layer 4 constitutes together then, and above temperature sensing cable technology is a routine techniques.Microcomputer modulator 5 detects the change in electric between the two strip metal conductors in real time; When temperature sensing cable is heated, because negative temperature coefficient thermistor composition layer 3 resistance descend, two metal detection conductors 1, the resistances between 2 reduce; When change in electric less than one fixedly during threshold values; Microcomputer modulator 5 sends the constant temperature alerting signal, and wherein the temperature-sensitive alarming threshold value of microcomputer modulator 5 can be established a plurality of temperature threshold values, realizes multistage constant temperature warning; When the temperature sensing cable temperature raises suddenly, two metal detection conductors 1, the resistances between 2 reduce suddenly, and microcomputer modulator 5 greater than one fixedly during threshold values, sends the differential temperature alerting signal according to the change in electric amount of unit interval; When environment temperature returns to the normal temperature state; Two metal detection conductors 1, negative temperature coefficient thermistor composition layer 3 resistance that are provided with between 2 raise; The elimination that resets of temperature-sensitive alerting signal, the line type temperature perceptron returns to the normal monitoring duty, realizes reusable.
Material that the present invention adopts is:
1, gas-discharge tube: gas-discharge tube sparking voltage 10V-3500V chooses.
2, sparking distance discharge: choose between 0.001～5mm.
3, resistance: resistance value is chosen between 0～100M Ω.
Claims (3)
1. line type temperature perceptron that has the gas discharge tube terminal; Be the signal acquisition circuit that is connected to form the terminal open circuit by the temperature sensing cable two ends respectively with microcomputer modulator (5) and terminal gas-discharge tube (6), it is characterized in that: only be provided with gas-discharge tube (6) between two strip metal detecting conductors (1, the 2) terminal of said temperature sensing cable.
2. line type temperature perceptron that has the gas discharge tube terminal; It is the signal acquisition circuit that is connected to form the terminal open circuit by the temperature sensing cable two ends respectively with microcomputer modulator (5) and terminal gas-discharge tube (6); It is characterized in that: a parallel connection resistance (7) on the input end of said microcomputer modulator (5) end temperature sensing cable or between the two strip metal detecting conductors (1,2) is provided with gas-discharge tube (6) between two strip metal detecting conductors of the temperature sensing cable other end.
3. according to claim 1 or the said a kind of line type temperature perceptron that has the gas discharge tube terminal of claim 2, it is characterized in that: temperature sensing cable is a multiloop, and each loop terminal is provided with gas-discharge tube (6); A parallel connection resistance (7) between each loop or each the loop metal detection conductor on the input end of microcomputer modulator (5) end temperature sensing cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087224A CN102214384B (en) | 2011-04-08 | 2011-04-08 | Line type temperature sensor of terminal with gas discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087224A CN102214384B (en) | 2011-04-08 | 2011-04-08 | Line type temperature sensor of terminal with gas discharge tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102214384A CN102214384A (en) | 2011-10-12 |
| CN102214384B true CN102214384B (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110087224A Active CN102214384B (en) | 2011-04-08 | 2011-04-08 | Line type temperature sensor of terminal with gas discharge tube |
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| CN (1) | CN102214384B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2709035C1 (en) * | 2019-01-23 | 2019-12-13 | Открытое акционерное общество "Научно-исследовательский институт "Элпа" с опытным производством | Fire alarm |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692746B (en) * | 2017-04-05 | 2022-07-12 | 中兴通讯股份有限公司 | Sensing monitoring terminal, sensing monitoring system and sensing monitoring method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310837A (en) * | 1980-10-14 | 1982-01-12 | General Electric Company | Electrical device termination high temperature indicator |
| CN101123026B (en) * | 2007-07-23 | 2012-06-13 | 首安工业消防有限公司 | A linear temperature susceptibility fire detector with electronic switch component |
| CN100495456C (en) * | 2007-07-25 | 2009-06-03 | 首安工业消防有限公司 | Alarming method for linear temperature-sensing fire hazard detector with double fixed temperature alarming threshold value |
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2011
- 2011-04-08 CN CN201110087224A patent/CN102214384B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2709035C1 (en) * | 2019-01-23 | 2019-12-13 | Открытое акционерное общество "Научно-исследовательский институт "Элпа" с опытным производством | Fire alarm |
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| CN102214384A (en) | 2011-10-12 |
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Owner name: SHENYANG PUTAI AN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI PING Effective date: 20140424 |
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Effective date of registration: 20140424 Address after: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 47-2 Acer International Building A 31 floor No. -2 Patentee after: Shenyang Putaian Technology Co.,Ltd. Address before: Shen Liaodong road Tiexi District of Shenyang City, Liaoning province 110022 Hongfa international city 47-2 No. 31 building -2 Patentee before: Li Ping |