CN201892574U - Network system of temperature sensors - Google Patents
Network system of temperature sensors Download PDFInfo
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- CN201892574U CN201892574U CN2010201111691U CN201020111169U CN201892574U CN 201892574 U CN201892574 U CN 201892574U CN 2010201111691 U CN2010201111691 U CN 2010201111691U CN 201020111169 U CN201020111169 U CN 201020111169U CN 201892574 U CN201892574 U CN 201892574U
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Abstract
The utility model relates to a network system of temperature sensors. The system comprises a temperature sensing wire cable and a temperature monitoring alarm controller connected with the temperature sensing wire cable. A center layer of the temperature sensing wire cable is composed of an earthing conductor, a power supply conductor, a data wire and at least one plate temperature sensor; a tetrafluoroethylene belting, a metal net shielding layer and an extrusion fluoroplastic flame-retardant outer sheath layer are wound on the exterior of the center layer in sequence inside and out. The wire cable is subjected to line-shaped, tree-shaped, star-shaped and net-shaped topology expansion through an adaptor. The network system has the characteristics that the network system has large protection scope, simple and reasonable structure and low cost, is easy to produce and manufacture and is convenient to use, has high sensitivity of temperature sensing and multistage temperature alarm, positions the site accurately, is free from maintenance and reusable, has strong electromagnetic interference resistance, suffers from little environmental temperature effect and can be subjected to grading expansion at random, etc. The network system has wide applicability and is particularly applicable to the temperature monitoring and early warning of accidents in the severe environment of dust, subways, tunnels, wire cable channels and the like, and in industrial sites of petroleum, petrochemical, grain depots and steel works, as well as in inflammable and explosive hazardous sites.
Description
Technical field
The utility model belongs to sensor field, is a kind of network system of temperature sensor specifically.
Background technology
Line-type heat detector is as temperature detection device with the temperature-sensitive cable, can in rugged surroundings such as pollution, dust, humidity and corrosion are arranged, finish the temperature rise locating alarming, therefore be adapted at applications such as smelter, railway, tunnel, underground mine, chemical enterprise, large-scale storehouse and transformer station.The line style detector that uses mainly is divided into electric resistance cable type temperature-sensitive alarm cables and optical fiber type temperature-sensitive alarm cables now.Resistor-type temperature alarming cable partly is to adopt two elastic wires, and these two steel wires insulate under normal situation, when scene temperature raises, has destroyed the insulation course of steel wire outside, and two steel wires are short-circuited, and alarm sends warning.This detector poor anti jamming capability, poor reliability, the part of reporting to the police needs excision, detects, safeguards difficulty, needs to select according to different object of protections the cable of different alarm temperatures, and versatility is poor.Also have the non-destructive alarm cables with the work of analog quantity mode that adopts four leads in addition, alarm temperature is adjustable, and fault-signal is complete.But because analog line type temperature-sensitive cable can only be with a certain local line segment as alarm unit; so it can't accurately locate out the alerting signal that a certain point produces; its part of reporting to the police needs excision to detect, safeguard difficulty simultaneously; need to select according to different object of protections the cable of different alarm temperatures, versatility is poor.Optical fiber type temperature-sensitive alarm cables can be set the alarm temperature point arbitrarily, can establish multistage type of alarms such as low-temperature warning, early warning and warning, also can report to the police according to temperature rise rate.This system can carry out the dynamic real-time monitoring to the residing change of temperature field of detector, and indicating positions and temperature value simultaneously can be to reporting to the police on detector optional position and the sequential and locating.System's antijamming capability is strong, the reliability height, but repetition of alarms detect, easy to maintenance, connect the monitor temperature situation of change, more directly perceived, but the system principle complexity, particularly homemade goods is ripe not enough for product, Installation and Debugging difficulty, warning system investment cost costliness.The temperature detected by optical fiber alarm cables is not easy to carry out the topology expansion that many cable classifications connect in addition.
The utility model content
The purpose of this utility model is to overcome the deficiency of existing electric resistance cable type temperature-sensitive alarm cables and optical fiber type temperature-sensitive alarm cables, provide a kind of simple in structure, with low cost, intensity is high, temperature control is high, multistage temperature alarming, installation line type temperature-sensitive cable easily.
Another purpose of the present utility model be to provide a kind of based on sensor network, strong, influenced by ambient temperature little, the temperature sensor network monitoring system that can carry out the hierarchical topology expansion of bearing accuracy height, anti-electromagnetic interference capability.
The purpose of this utility model realizes by following technological means:
A kind of network system of temperature sensor of the utility model comprises temperature-sensitive cable and a temperature monitoring alarm controller that is connected on this cable.
A kind of network system of temperature sensor, it comprises an earth lead, a power lead, a data line and at least one the chip temperature sensor that constitutes temperature-sensitive cable central core, and wherein the earth terminal pin of chip temperature sensor, power input pin and data I/O end pin link to each other with earth lead, power lead and data line respectively.Described chip temperature sensor has 3 pins, be respectively earth terminal, power input and data I/O pin, wherein the earth terminal pin links to each other with described earth lead, and the power input pin is connected with described power lead, and data I/O pin is connected with described data line.Each chip temperature sensor is divided into sequence number, ram in slice, EEPROM and four parts of temperature sensing, the sequence number that each chip temperature sensor is corresponding one only one, adopt mode in parallel that a plurality of chip temperature sensors are connected on the same cable, thereby the realization multi-point temp is gathered in real time.
A kind of network system of temperature sensor, described temperature-sensitive cable central core can be wrapped with tetrafluoroethene band, metal mesh shield layer and the fire-retardant external sheath layer of extrusion molding material fluoroplastic successively according to order from inside to outside.
A kind of network system of temperature sensor, according to actual needs, can adopt at least one adapter to realize linear, the star and the mesh topology expansion of described cable, described adapter, have an input adapter, each out splice going splice comprises three line ends that are used for connecting respectively earth lead, power lead and data line.
The principle of work of temperature monitoring warning system of the present utility model is as follows:
The temperature alarming controller sends a negative pulse that satisfies specific time sequence by data line to the chip temperature sensor, makes that all chip temperature sensors carry out initial reset on the data line, prepares to accept user's sequence number visit order; By data line, send a specific serial number codes then, the chip temperature sensor number consistent with command sequence is activated, and can accept the internal storage access order; Start all activation line chip temperature sensors and do temperature A/D conversion, read the temperature data after the conversion of chip temperature sensor one by one, realize that the temperature to line type temperature-sensitive alarm cables monitoring range reads, temperature survey and dynamic refresh.
Described temperature monitoring alarm controller adopts single-chip microcomputer as main control unit, monitors number, sequence number and the monitoring each point temperature thereof of the chip temperature sensor of every cable connection automatically, and information is preserved so that read.But its isolated operation also can send computing machine at a distance to by communication lines such as RS485, Ethernet, CAN buses, networks with PC.Can be according to accepting the instruction and data that host computer PC or input keyboard are sent, the response temperature parameter and the time parameter of arbitrary temp grade are set, carry out temperature survey and report to the police, be the line style continuous probe thereby the utility model is surveyed, the dynamic refresh temperature data, and this is made response, have and be quick on the draw the alarm temperature wide ranges, alarm set point is easily adjusted, advantages such as it is accurate to report to the police, and reuse is good, and is non-maintaining.
Temperature monitoring alarm temperature grade can be set arbitrarily according to chip temperature sensor temperature-measuring range, single temperature alarming cable detection range and warning bearing accuracy are by the sheet number and the spacing decision of chip temperature sensor, the warning bearing accuracy reaches as high as below the 0.5m, and detection range can reach thousands of rice.The utility model can produce and its length corresponding temperature value signal of chip temperature sensor point in the scope in one's power continuously automatically, and temperature information is accurately shown in real time, can not only allow the user measure the amplitude and the speed of temperature mutation, and can determine the zone of temperature mutation.
To sum up, the utility model has following useful effect:
(1) line type temperature-sensitive cable of the present utility model is made up of power lead, earth lead, single bus and some chip temperature sensors, skin has tetrafluoroethene band, metal mesh shield layer and the fire-retardant external sheath layer of extrusion molding material fluoroplastic, can strengthen physical strength of the present utility model and anti-electromagnetic interference capability, the stability of improving the quality of products, simple and reasonable, with low cost, do not relate to the coating of materials such as metal alloy, oxide semi-conductive layer and temperature-sensitive alloy, manufacture easily; The fire-retardant external sheath layer of extrusion molding material fluoroplastic makes the utility model appearance more attractive in appearance, and water resistance is good, and resistance to aging is stronger, longer service life;
(2) expansion of line type temperature-sensitive cable of the present utility model and temperature monitoring warning system topology is easy to connect, can select the expansion of linear, star and network shape topology arbitrarily, it is big to have a protection domain, surveys to be the line style continuous probe, be quick on the draw advantage such as anti-electromagnetic interference capability is strong;
(3) the alarm temperature grade of monitor and alarm system of the present utility model can be set arbitrarily according to chip temperature sensor temperature-measuring range, the alarm temperature wide ranges, alarm set point is easily adjusted, report to the police accurately, single monitoring, alarming cable detection range and warning bearing accuracy are by the sheet number and the spacing decision of chip temperature sensor, BURN-THROUGH RANGE can reach thousands of rice, and precision and temperature detected by optical fiber are surveyed cable and reached same grade, and the warning bearing accuracy reaches as high as below the 0.5m;
(4) monitor and alarm system of the present utility model is influenced by ambient temperature little, can be widely used in inflammable and explosive hazardous areas such as oil depot, subway, cable raceway groove, silo;
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is described in further details.
Fig. 1 is based on the structural drawing of the line type temperature-sensitive alarm cables of sensor network
Fig. 2 is based on the sectional view of the line type temperature-sensitive alarm cables of sensor network
Fig. 3 is chip arrangement of temperature sensor figure
Fig. 4 is a line type temperature-sensitive monitor and alarm system connection diagram
Fig. 5 is a line type temperature-sensitive monitoring, alarming cable adapter cascade synoptic diagram one to one
Fig. 6 is a line type temperature-sensitive monitoring, alarming cable one-to-many adapter cascade synoptic diagram
Fig. 7 is a line type temperature-sensitive monitoring, alarming cable linear topology expander graphs
Fig. 8 is a line type temperature-sensitive monitoring, alarming cable Star topology expander graphs
Fig. 9 is a line type temperature-sensitive monitoring, alarming cable mesh topology expander graphs
Embodiment
With reference to figure 1 and Fig. 2, earth lead 1, power lead 2 and data line 3 and some chip temperature sensors 4 corresponding pins are connected, and tie point is carried out insulation processing; Earth lead 1, power lead 2, data line 3 are fit together with chip temperature sensor 4, band tetrafluoroethene layer 5 in twining on its outer surface, looping metal mesh shield layer 6 outside interior band tetrafluoroethene layer 5, the fire-retardant external sheath layer 7 of extrusion molding fluoroplastic outside metal mesh shield layer 6, thus formation is based on the temperature-sensitive monitoring, alarming cable of sensor network.Realized that technology is simple, with low cost, do not related to metal alloy, coated, the enhance mechanical strength and the anti-electromagnetic interference capability of material such as oxide semi-conductive layer and temperature-sensitive alloy, the stability of improving the quality of products, and appearance is more attractive in appearance, water resistance is good, resistance to aging is stronger, advantages such as longer service life.
With reference to figure 3, chip temperature sensor 4 has 3 pins, is respectively earth terminal, power input and data I/O pin.Corresponding respectively earth lead 1, power lead 2 and the data line 3 that connects of each pin is connected.Chip temperature sensor 4 can convert temperature signal to serial digital signal, carries out information communication by single bus 3 and temperature-sensitive monitoring, alarming controller 9.Each chip temperature sensor inside is divided into four parts: sequence number, ram in slice, EEPROM and temperature sensing part.Because each chip temperature sensor all has one only one sequence number, thus a plurality of chip temperature sensor can be connected on the same cable, thereby realize that multi-point temp gathers in real time.
With reference to figure 4, chip temperature sensor 4 is connected with temperature-sensitive monitoring, alarming controller 9 with data line 3 by earth lead 1, power lead 2, forms warning system.Temperature-sensitive monitoring, alarming controller 9 passes through the sequence number and the corresponding temperature value of data line 3 real-time read sensors, and according to the temperature alarming thresholding of setting, reports to the police and position display.Temperature-sensitive monitoring, alarming cable alarm temperature grade can be set arbitrarily according to chip temperature sensor 4 temperature-measuring ranges, single temperature-sensitive monitoring, alarming cable detection range and warning bearing accuracy are by the sheet number and the spacing decision of chip temperature sensor 4, the warning bearing accuracy reaches as high as below the 0.5m, and detection range can reach thousands of rice.Temperature-sensitive monitoring, alarming controller 9 is finished the collection of chip temperature sensor 4 states, can send data at a distance computing machine by communication lines such as RS485, Ethernet, CAN buses, is convenient to the system integration.It is big to have protection domain, surveys to be the line style continuous probe, is quick on the draw alarm temperature wide ranges, advantage such as alarm set point is easily adjusted, and reports to the police accurately, and reuse is good, and is non-maintaining.
With reference to figure 5 and Fig. 6, line type temperature-sensitive monitoring, alarming cable is carried out cascade with adapter, adapter has an input adapter, wherein comprises to be used to connect three line ends that earth lead 1, power lead 2 are connected with data line 3; Have one or more out splice going splices, each out splice going splice comprises and is used to connect three line ends that earth lead 1, power lead 2 are connected with data line 3.By a plurality of adapters line type temperature-sensitive monitoring, alarming cable is carried out linear, star or mesh topology expansion.
With reference to figure 7, Fig. 8, Fig. 9, with multistage line type temperature-sensitive monitoring, alarming cable, by earth lead 1, the power lead 2 and data line 3 corresponding link to each other of adapter 8 with cable, classification according to adapter connects, can carry out linear, star and network shape topology expands to line type temperature-sensitive monitoring, alarming cable, more multistage temperature-sensitive monitoring, alarming cable is connected with alarm controller.The realization protection domain is big, and the application place is wide, can be used for numerous application places that need the multiple branches monitoring such as silo, oil depot, cable raceway groove.
Claims (4)
1. a network system of temperature sensor is characterized in that, comprises temperature-sensitive cable and a temperature monitoring alarm controller (9) that is connected on this cable.
2. a kind of network system of temperature sensor according to claim 1, it is characterized in that comprising an earth lead (1) that constitutes temperature-sensitive cable central core,, a power lead (2),, data line (3) and at least one chip temperature sensor (4), the earth terminal pin of chip temperature sensor (4) wherein, power input pin and data I/O end pin respectively with earth lead (1), power lead (2) links to each other with data line (3), described chip temperature sensor (4) has 3 pins, be respectively earth terminal, power input and data I/O pin, wherein the earth terminal pin links to each other with described earth lead, the power input pin is connected with described power lead, data I/O pin is connected with described data line, each chip temperature sensor is divided into sequence number, ram in slice, four parts of EEPROM and temperature sensing, the sequence number that each chip temperature sensor is corresponding one only one adopts mode in parallel that a plurality of chip temperature sensors are connected on the same cable.
3. a kind of network system of temperature sensor according to claim 1, it is characterized in that, the temperature-sensitive cable is pressed direction from inside to outside, is tied with tetrafluoroethene band (5), metal mesh shield layer (6) and the fire-retardant external sheath layer of extrusion molding fluoroplastic (7) on the described cable central core successively.
4. a kind of network system of temperature sensor according to claim 1, it is characterized in that, described line type temperature-sensitive cable can adopt at least one adapter (8) to realize linear, the star and the mesh topology expansion of described cable, described adapter, have an input adapter, each out splice going splice comprises three line ends that are used for connecting respectively earth lead (1), power lead (2) and data line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201111691U CN201892574U (en) | 2010-02-10 | 2010-02-10 | Network system of temperature sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201111691U CN201892574U (en) | 2010-02-10 | 2010-02-10 | Network system of temperature sensors |
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| Publication Number | Publication Date |
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| CN201892574U true CN201892574U (en) | 2011-07-06 |
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| CN2010201111691U Expired - Fee Related CN201892574U (en) | 2010-02-10 | 2010-02-10 | Network system of temperature sensors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644137A (en) * | 2016-12-08 | 2017-05-10 | 沈阳兴华华亿轨道交通电器有限公司 | Three-probe motor temperature sensor with adapter box |
| CN111799620A (en) * | 2014-01-31 | 2020-10-20 | 西门子公司 | Electric connection device and charging cable for electric vehicle |
-
2010
- 2010-02-10 CN CN2010201111691U patent/CN201892574U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799620A (en) * | 2014-01-31 | 2020-10-20 | 西门子公司 | Electric connection device and charging cable for electric vehicle |
| CN106644137A (en) * | 2016-12-08 | 2017-05-10 | 沈阳兴华华亿轨道交通电器有限公司 | Three-probe motor temperature sensor with adapter box |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20120210 |