CN202101770U - Passive wireless temperature measuring device of switch cabinet - Google Patents
Passive wireless temperature measuring device of switch cabinet Download PDFInfo
- Publication number
- CN202101770U CN202101770U CN2011202111547U CN201120211154U CN202101770U CN 202101770 U CN202101770 U CN 202101770U CN 2011202111547 U CN2011202111547 U CN 2011202111547U CN 201120211154 U CN201120211154 U CN 201120211154U CN 202101770 U CN202101770 U CN 202101770U
- Authority
- CN
- China
- Prior art keywords
- temperature
- chip microcomputer
- circuit
- temperature measuring
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a passive wireless temperature measuring device of a switch cabinet, comprising a temperature sensor, a single chip microcomputer and an acquisition unit, wherein the acquisition unit is connected with the single chip microcomputer by an antenna, a radio-frequency transmitting circuit and a radio-frequency receiving circuit; the acquisition unit is connected with a temperature display by a communication cable; the single chip microcomputer is connected with the temperature sensor by a signal amplifying circuit, and is connected with a Farah capacitor which is connected with an energy collection circuit; and the energy collection circuit is respectively connected with the radio-frequency receiving circuit and a temperature difference ionization piece. The acquisition unit is connected with an external power supply. In the passive wireless temperature measuring device, the design is novel and unique, the structure is simple, the energy consumption is low, and an additional power supply is not needed; and the passive wireless temperature measuring device is widely used for measuring the temperature of high-low-voltage switch cabinets in power stations, substations and large industrial and mining enterprises, and can also be used for online temperature measurement of other equipment and conductors in totally enclosed substation, so that the overheat and relevant accidents are greatly reduced, and the operation stability of a power system is improved.
Description
One. technical field: the utility model relates to a kind of switch cubicle temperature measuring equipment, particularly relates to a kind of switch cubicle passive and wireless temperature measuring equipment.
Two. background technology: switch cubicle is in operational process, and its switch contact the position such as is connected and is prone to hyperthermia and superheating with bus, cause fire and large area blackout.Real-time monitoring switch temperature, prevent switch overheated be to stop the key that this type of accident takes place.At present, the mode of thermometric wired with two types of wireless temperature measurements.The insulating property that wired thermometric mode subject matter is its connecting line can not guarantee.Like fibre optic temperature sensor, thereby be prone to cause the optical fiber creeping discharge that insulativity is reduced behind its optical fiber accumulation dust, also have defectives such as optical fiber is easy to break, easily broken, non-refractory simultaneously.
Wireless temperature measurement mainly adopts the infrared measurement of temperature mode, but because present novel switched cabinet is enclosed construction, can't patrol and examine with hand-held infrared thermometer.
Present on-line monitoring class wireless temperature measurement technology needs to use lithium battery as power supply.Lithium battery is at high temperature inflammable and explosive, and its reliability is lower than switch cubicle itself toward contact, needs often to change battery, the security of operation poor stability, and the system maintenance cost is higher.
Three. the utility model content:
The utility model technical matters to be solved is: overcome the deficiency of prior art, provide that a kind of modern design is unique, simple in structure, energy consumption is low and do not need the switch cubicle passive and wireless temperature measuring equipment of additional power source.
The technical scheme of the utility model is: a kind of switch cubicle passive and wireless temperature measuring equipment; Contain temperature sensor, single-chip microcomputer and collector; Said collector is connected with said single-chip microcomputer with radio-frequency transmissions circuit, RF receiving circuit through antenna; And said collector is connected with temperature indicator through communication cable; Said single-chip microcomputer is connected with said temperature sensor through signal amplification circuit; And; Said single-chip microcomputer is connected with farad capacitor, and said farad capacitor is connected with the collection of energy circuit, and this collection of energy circuit is sent a telegraph sheet with the said RF receiving circuit and the temperature difference respectively and is connected.
Said collector is connected with external power supply.Said temperature indicator is installed on the switch cabinet panel and/or is arranged in the pulpit.
The beneficial effect of the utility model is:
1. the work of the utility model single-chip microcomputer does not need additional power source, and its energy source is in two aspects: one is based on the EM coupling principle, receives the radiofrequency signal that collector is sent through antenna, behind rectifying and wave-filtering, supplies power to single-chip microcomputer; The 2nd, according to Seebeck effect (temperature difference is sent a telegraph), be the single-chip microcomputer power supply after the electric energy that utilizes the conductor heating to change boosts.It has filled up the blank that closed high-tension switch cabinet does not have reliable its conductor temperature of on-line monitoring, and has solved active temperature measuring equipment and need often to change battery and the proving installation life-span is short, maintenance cost is high problem.
2, the utility model adopts farad capacitor, and energy storage is big, and in addition, measurement and wireless signal send and all adopt low power dissipation design, to guarantee the single-chip microcomputer power supply.
3, the utility model can be widely used in the high and low voltage switch cabinet thermometric of generating plant, transformer station and large industrial enterprise, also can be used for the temperature measurement on-line of totally-enclosed transformer station miscellaneous equipment, conductor.Can reduce overheated and relevant accident greatly after applying, improve Operation of Electric Systems stability, have higher economic results in society.
Four. description of drawings:
Fig. 1 is the schematic diagram of switch cubicle passive and wireless temperature measuring equipment.
Five. embodiment:
Embodiment: referring to Fig. 1, among the figure, the 1-temperature difference is sent a telegraph sheet, 2-farad capacitor, 3-single-chip microcomputer, 4-temperature sensor, 5-collector, 6-temperature indicator.
Switch cubicle passive and wireless temperature measuring equipment contains temperature sensor 4, single-chip microcomputer 3 and collector 5; Wherein: collector 5 is connected with single-chip microcomputer 3 with radio-frequency transmissions circuit, RF receiving circuit through antenna; And collector 5 is connected with temperature indicator 6 through communication cable; Single-chip microcomputer 3 is connected with temperature sensor 4 through signal amplification circuit, and single-chip microcomputer 3 is connected with farad capacitor 2, and farad capacitor 2 is connected with the collection of energy circuit, and this collection of energy circuit is sent a telegraph sheet 1 with the RF receiving circuit and the temperature difference respectively and is connected.
During work; Collector 5 is installed on the cabinet top outside surface of closed high-tension switch cabinet; Single-chip microcomputer 3, temperature sensor 4, farad capacitor 2, the temperature difference send a telegraph sheet 1 and interlock circuit is installed in closed high-tension switch cabinet inside; And the temperature difference is sent a telegraph sheet 1 and is installed on conductive surface to be measured with temperature sensor 4, and closely contact.
The collection of energy circuit is sent a telegraph the temperature difference of conductor heating the weak voltage signal of the radiofrequency signal generation of sending with collector 5 and is given farad capacitor 2 chargings through booster circuit; Accomplish when farad capacitor 2 chargings, start single-chip microcomputer 3 work.The temperature variation signal that temperature sensor 4 is gathered is through signal amplification circuit input single-chip microcomputer 3.
The voltage that 3 pairs of temperature of single-chip microcomputer produce carries out the A/D conversion, sends through the radio-frequency transmissions circuit after the result is encoded.Collector 5 receives that the laggard line data of signal handles, and temperature is shown again and uploads.There are two kinds of duties in this device: the one, and collector 5 sends instruction, impels single-chip microcomputer 3 to be sent the temperature variation signal by trend collector 5, and the 2nd, temperature variation reaches certain limit, and single-chip microcomputer 3 initiatively sends the temperature variation signal to collector 5.
Claims (3)
1. switch cubicle passive and wireless temperature measuring equipment; Contain temperature sensor, single-chip microcomputer and collector; It is characterized in that: said collector is connected with said single-chip microcomputer with radio-frequency transmissions circuit, RF receiving circuit through antenna, and said collector is connected with temperature indicator through communication cable; Said single-chip microcomputer is connected with said temperature sensor through signal amplification circuit; And; Said single-chip microcomputer is connected with farad capacitor, and said farad capacitor is connected with the collection of energy circuit, and this collection of energy circuit is sent a telegraph sheet with the said RF receiving circuit and the temperature difference respectively and is connected.
2. switch cubicle passive and wireless temperature measuring equipment according to claim 1, it is characterized in that: said collector is connected with external power supply.
3. switch cubicle passive and wireless temperature measuring equipment according to claim 1 and 2, it is characterized in that: said temperature indicator is installed on the switch cabinet panel and/or is arranged in the pulpit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202111547U CN202101770U (en) | 2011-06-22 | 2011-06-22 | Passive wireless temperature measuring device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202111547U CN202101770U (en) | 2011-06-22 | 2011-06-22 | Passive wireless temperature measuring device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101770U true CN202101770U (en) | 2012-01-04 |
Family
ID=45387776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202111547U Expired - Fee Related CN202101770U (en) | 2011-06-22 | 2011-06-22 | Passive wireless temperature measuring device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101770U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759410A (en) * | 2012-07-13 | 2012-10-31 | 上海一德电气科技有限公司 | Wireless temperature measuring system |
| CN103575415A (en) * | 2013-09-13 | 2014-02-12 | 国家电网公司 | On-line temperature monitoring system and method for intermediate joints of buried cable |
| CN104198081A (en) * | 2014-09-19 | 2014-12-10 | 河南森源电气股份有限公司 | Internal contact temperature real-time online monitoring system of switch cabinet |
| CN104515617A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Passive temperature measuring sensor of substation primary equipment |
| CN104515616A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Temperature monitoring and inspecting system of substation primary equipment |
| CN105890786A (en) * | 2016-04-09 | 2016-08-24 | 安徽大学 | Intelligent cable joint system |
| CN110146731A (en) * | 2019-04-04 | 2019-08-20 | 国网山东省电力公司济宁供电公司 | A kind of electric metering box fire protection monitoring device and monitoring method |
-
2011
- 2011-06-22 CN CN2011202111547U patent/CN202101770U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759410A (en) * | 2012-07-13 | 2012-10-31 | 上海一德电气科技有限公司 | Wireless temperature measuring system |
| CN103575415A (en) * | 2013-09-13 | 2014-02-12 | 国家电网公司 | On-line temperature monitoring system and method for intermediate joints of buried cable |
| CN103575415B (en) * | 2013-09-13 | 2016-04-20 | 国家电网公司 | A kind of underground cable Joint Temperature on-line monitoring system and monitoring method thereof |
| CN104515617A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Passive temperature measuring sensor of substation primary equipment |
| CN104515616A (en) * | 2013-09-30 | 2015-04-15 | 江苏省电力公司常州供电公司 | Temperature monitoring and inspecting system of substation primary equipment |
| CN104515616B (en) * | 2013-09-30 | 2017-10-17 | 江苏省电力公司常州供电公司 | Transforming plant primary equipment temperature monitoring cruising inspection system |
| CN104198081A (en) * | 2014-09-19 | 2014-12-10 | 河南森源电气股份有限公司 | Internal contact temperature real-time online monitoring system of switch cabinet |
| CN105890786A (en) * | 2016-04-09 | 2016-08-24 | 安徽大学 | Intelligent cable joint system |
| CN110146731A (en) * | 2019-04-04 | 2019-08-20 | 国网山东省电力公司济宁供电公司 | A kind of electric metering box fire protection monitoring device and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202101770U (en) | Passive wireless temperature measuring device of switch cabinet | |
| CN102437646B (en) | Wireless temperature and humidity monitoring device for high-voltage switch cabinet | |
| CN100533081C (en) | Switch cabinet contact temperature monitoring and alarming system | |
| CN201532262U (en) | High-voltage switch contact and bus on-line temperature measuring device | |
| CN202141524U (en) | Switch cabinet temperature monitoring system based on wireless network | |
| CN103267578B (en) | Electric power high-voltage cable connector non-contact infrared temperature measurement system and temperature measurement method | |
| CN203455936U (en) | Passive wireless temperature rise monitoring device | |
| CN103453998A (en) | Self-energy-taking wireless temperature sensor and achieving method thereof | |
| CN202648804U (en) | High voltage contact and bus on-line temperature measuring device | |
| CN203432691U (en) | A dry-type transformer temperature online monitoring system | |
| CN202309221U (en) | Wireless temperature and humidity monitoring device for high-voltage switch cabinets | |
| CN202903365U (en) | Switch cabinet temperature monitoring system based on Wimax wireless communication | |
| CN102768081A (en) | Passive wireless temperature measuring system for capacitors of transformer substation | |
| CN204373809U (en) | A kind of watchband type passive and wireless temperature measurement on-line device | |
| CN204242381U (en) | Based on the high voltage electric equipment monitoring-temperature alarm system of ZigBee technology | |
| CN203274950U (en) | Transformer station temperature sensing device based on wireless temperature transmission | |
| CN203858042U (en) | Wireless temperature measurement system of high-voltage switch cabinet | |
| CN202562638U (en) | Hose clamp type on-line temperature rise monitoring device | |
| CN202836822U (en) | Temperature detection system for capacitor in transformer substation | |
| CN204883297U (en) | Intelligence enclosed bus with online monitoring function | |
| CN201212840Y (en) | On-line monitoring system for switch cabinet contact temperature boost | |
| CN203629700U (en) | Wireless temperature measuring device | |
| CN204831572U (en) | High tension switchgear's wireless temperature measurement system | |
| CN202494520U (en) | Remote infrared temperature monitor | |
| CN203929269U (en) | Wireless temperature measurement system in transformer station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120104 Termination date: 20120622 |