CN104330117A - Transformer substation switch cabinet temperature and humidity measurement system - Google Patents
Transformer substation switch cabinet temperature and humidity measurement system Download PDFInfo
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- CN104330117A CN104330117A CN201410682976.1A CN201410682976A CN104330117A CN 104330117 A CN104330117 A CN 104330117A CN 201410682976 A CN201410682976 A CN 201410682976A CN 104330117 A CN104330117 A CN 104330117A
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Abstract
The invention relates to a transformer substation switch cabinet temperature and humidity measurement system. The transformer substation switch cabinet temperature and humidity measurement system comprises a temperature and humidity sensor, an MCU (micro controller unit), a storage unit, a GSM (global system for mobile communications) communication module and a logic control unit, wherein the MCU is connected with the temperature and humidity sensor, the storage unit, the GSM communication module and the logic control unit, the temperature and humidity sensor is used to achieve local collection of temperature and humidity information, the MCU is used to process data used by the temperature and humidity sensor so as to integrate and normalize the data, controls the GSM communication module to work, and works by controlling the logic control unit, the storage unit is used to record local sampled data and perform log management on the local sampled data, the GSM communication module is used to receive and send information, and the logic control unit is used to achieve a control connection between the transformer substation switch cabinet temperature and humidity measurement system and an external device. Compared with the prior art, the transformer substation switch cabinet temperature and humidity measurement system has the advantages of being convenient to operate, high in measurement accuracy and the like.
Description
Technical field
The present invention relates to a kind of temperature/humidity measuring system, especially relate to a kind of switch cabinet of converting station temperature/humidity measuring system.
Background technology
The rapid expansion of electrical network scale, increasing by the transmission line of electricity in complicated landform and adverse weather condition area, the safe operation of whole electrical network will be affected when adverse condition causes line fault.Therefore, analyze and the various common outside destroy phenomenon of research transmission line of electricity, reason, and propose the operational management of specific aim measure and reinforcement transmission line of electricity, very important for the level strengthening China's power network safety operation.
Epidemic disaster monitoring is carried out to the casing on circuit, also becomes a very important part for transmission line of electricity safe operation.This monitoring device also by mobile phone short message enquiry in real time and historical information, can save a large amount of manpower and time for owner.This GSM sensor can be monitored the humiture situation of collective's case of sealing, is powered by accumulator or solar energy module, carries out Real-Time Monitoring to meet to the humiture situation of seal case.
Conventional temperature and humidity measurement method:
1. lithium chloride humidity sensor
A) resistance-type lithium chloride hygrometer
First lithium chloride based on resistance-humidity characteristic principle electricity humidity-sensitive element is that the F.W.Dunmore of American Bureau of Standards (ABS) develops.This element has higher precision, and structure is simple, inexpensive simultaneously, is applicable to the series of advantages such as the observing and controlling of ambient temperature and moisture.
B) dew-point lithium chloride hygrometer
Dew-point lithium chloride hygrometer is first developed by the Forboro company of the U.S., and a large amount of research work has all been done by China and many countries thereafter.This hygrometer and above-mentioned resistance-type lithium chloride hygrometer similar in form, but principle of work is completely different.In brief, it utilizes the saturation vapour pressure of lithium chloride saturated aqueous solution vary with temperature and carry out work.
2. carbon humidity-sensitive element
Carbon humidity-sensitive element is that first E.K.Carver and C.W.Breasefield of the U.S. put forward in nineteen forty-two, as compared to the sounding element such as conventional hair, casing and lithium chloride, carbon humidity-sensitive element have fast response time, reproducible, without erosion effect and the advantage such as hysteresis loop is narrow, therefore attract people's attention.Meteorological department of China carries out the development of carbon humidity-sensitive element the beginning of the seventies, and achieves positive achievement, and its uncertainty of measurement is no more than ± 5%RH, and time constant is at positive Wen Shiwei 2 ~ 3s, and decalage is generally about 7%, and resistivity stability is also better.
3. aluminium oxide hygrometer
The outstanding advantages of alumina sensor is, volume can very little (such as the humidity-sensitive element of sonde, only 90 μm of thick, 12mg be heavy), highly sensitive (measurement lower limit reaches-110 DEG C of dew points), fast response time (generally between 0.3s to 3s), measuring-signal directly exports with the form of electric parameter, enormously simplify data processor, etc.In addition, it is also applicable to measure the moisture in liquid.As above feature just industry and meteorology in some fields of measurement desired by.Therefore it is considered to carry out one of alternative several sensor meeted the requirements of Atmospheric sounding in upper air.Exactly because also these features make people produce keen interest to this method.But, although regrettably the professional of many countries improves the performance of sensor to have carried out unremitting effort, explore the process conditions of the stable product of the quality of production, and improve the major issue relevant with practicality such as stability.
4. Ceramic Humidity Sensor
In moisture measurement field, for low humidity and high humidity and the measurement under low temperature and hot conditions thereof, up to the present remain a weak link, and wherein with the moisture measurement technology backwardness the most under hot conditions.In the past, aspirated-dry-wet bulb hygrometer was almost operable unique method under this temperature conditions, and this method also exists variety of problems in actual use, cannot be satisfactory.On the other hand, the progress of science and technology, require that the occasion at high temperature measuring humidity gets more and more, such as cement, metal smelt, food processing etc. relate to moisture measurement and the control of many industrial processs of process conditions and quality control.Therefore, from the sixties, many countries start the humidity sensor carrying out under development is applicable to hot conditions mutually unexpectedly measuring.Consider the service condition of sensor, people very are naturally conceived to probing direction not only to have water absorptivity but also can on some inorganicss resistant to elevated temperatures.Put into practice verified, ceramic component not only has Unordered system, but also can as temperature-sensing element and gas sensor.These characteristics make it very likely become a kind of rising Multifunction Sensor.The people such as temple day, Fukushima, new field have stepped a rather successful step in this respect.They were developed into the Multifunction Sensor being referred to as " wet porcelain-II type " and " wet porcelain-type III " in 1980.The former can observing and controlling temperature and humidity, is mainly used in air-conditioning, and the latter can be used to measure the multiple organic vapor such as humidity and such as alcohol, is mainly used in food processing aspect.
The problems such as the temperature and humidity measurement technology ubiquity measuring accuracy of existing switch cabinet of converting station is poor, measurement range is narrow, it is constant to safeguard, data security is poor.
Summary of the invention
Object of the present invention is exactly provide a kind of easy to operate, switch cabinet of converting station temperature/humidity measuring system that measuring accuracy is high to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of switch cabinet of converting station temperature/humidity measuring system, it is characterized in that, comprise Temperature Humidity Sensor, MCU controller, storage unit, gsm communication module and logic control element, described MCU controller is connected with Temperature Humidity Sensor, storage unit, gsm communication module and logic control element respectively;
Wherein said Temperature Humidity Sensor, gathers for this locality realizing temperature and humidity information;
Described MCU controller, the data for adopting Temperature Humidity Sensor are carried out process and are integrated normalization, control gsm communication module work, and are worked by steering logic control module;
Described storage unit, the data for sampling this locality record and carry out log management;
Described gsm communication module is used for being receive and transmission information;
Described logic control element, for realizing the control linkage of external equipment.
Described Temperature Humidity Sensor comprises temperature-sensing probe and resistance-type lithium chloride hygrometer, and wherein temperature-sensing probe is for realizing the measurement of local temperature, and described resistance-type lithium chloride hygrometer is for responding to local humidity parameter.
Described gsm communication module comprises the GSM chip and GSM antenna that connect successively, and described GSM chip is connected with MCU controller.
When user's needs obtain the temperature-humidity monitoring data in switch cubicle, inquired about by the mode of note, comprise the humiture data can inquiring about current time, or inquire about the average data of concrete some day and the accidental data of certain day.
Also comprise power module, this power module comprises electric power management circuit, solar panel and chargeable lead-acid accumulator, and described electric power management circuit is connected with solar panel and chargeable lead-acid accumulator respectively.
Described gsm communication module is according to the note of the time set to designated terminal transmission humiture information.
Described solar panel adopts MPPT controller for solar.
Also comprise the alarm module be connected with MCU controller, when MCU controller judges that the humiture information gathered exceedes setting threshold value, control alarm module and carry out this locality warning, warning message is transferred to remote terminal immediately simultaneously.
Described alarm module is audible-visual annunciator.
Described MCU controller is by UART interface and gsm communication module, and described MCU controller is connected with Temperature Humidity Sensor by iic bus.
Compared with prior art, the present invention has the following advantages:
1, easy to operate, got final product in real time by remote terminal or regularly referring to humiture information, improve the reliability of transformer station.
2, measuring accuracy is high, adopts high accuracy data process chip, adopts high precision collecting chip simultaneously, substantially increases measuring accuracy.
3, battery durable ability is strong, by adopting solar panel and chargeable lead-acid accumulator dual power supply mode, substantially increases battery durable ability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of switch cabinet of converting station temperature/humidity measuring system, comprise Temperature Humidity Sensor 2, MCU controller 1, storage unit 3, gsm communication module 4 and logic control element 5, described MCU controller 1 is connected with Temperature Humidity Sensor 2, storage unit 3, gsm communication module 4 and logic control element 5 respectively;
Wherein said Temperature Humidity Sensor 2, gathers for this locality realizing temperature and humidity information; Described MCU controller 1, the data for adopting Temperature Humidity Sensor 2 are carried out process and are integrated normalization, control gsm communication module 4 and work, and worked by steering logic control module 5; Described storage unit 3, the data for sampling this locality record and carry out log management; Described gsm communication module 4 is used for being receive and transmission information; Described logic control element 5, for realizing the control linkage of external equipment.
Described Temperature Humidity Sensor 2 comprises temperature-sensing probe and resistance-type lithium chloride hygrometer, and wherein temperature-sensing probe is for realizing the measurement of local temperature, and described resistance-type lithium chloride hygrometer is for responding to local humidity parameter.
Described gsm communication module 4 comprises the GSM chip and GSM antenna that connect successively, and described GSM chip is connected with MCU controller 1.
When user's needs obtain the temperature-humidity monitoring data in switch cubicle, inquired about by the mode of note, comprise the humiture data can inquiring about current time, or inquire about the average data of concrete some day and the accidental data of certain day.
The present invention also comprises power module, and this power module comprises electric power management circuit, solar panel and chargeable lead-acid accumulator, and described electric power management circuit is connected with solar panel and chargeable lead-acid accumulator respectively.Described solar panel adopts MPPT controller for solar.
Described gsm communication module 4 is according to the note of the time set to designated terminal transmission humiture information.
The present invention also comprises the alarm module be connected with MCU controller 1, when MCU controller 1 judges that the humiture information gathered exceedes setting threshold value, controls alarm module and carries out this locality warning, warning message is transferred to remote terminal immediately simultaneously.Described alarm module is audible-visual annunciator.
Described MCU controller 1 is by UART interface and gsm communication module 4, and described MCU controller 1 is connected with Temperature Humidity Sensor 2 by iic bus.
Specific implementation method:
A point installation Temperature Humidity Sensor, this sensor with wireless communication module (move and wait network), and need be provided with SIM card.When maintenance person needs to know real time humiture situation, just send a short-message instruction with designated mobile phone number to A point SIM card, thus just can receive the note of the current humiture information of A point.Sensor communications module, need have the function of filtering information and interference, and such as, non-designated cell-phone number rejection, non-designated cell-phone number note is not returned.
Extension function: designated mobile phone sends certain instruction note, can also obtain the humiture information note within several hours.
The key technical indexes of the present invention
1. frequency of operation: transmission frequency is 890MHz-915MHz;
2. receive frequency is 935MHz-960MHz;
3. accumulator: 12V/3A;
4. solar cell power output plate: peak value 20W;
5. local record data: 10000;
6. temperature measurement range :-25 ~ 85 DEG C;
7. temperature measurement accuracy: 2%;
8. moisture measurement scope: 0 ~ 100%RH;
9. moisture measurement precision: ± 10%;
10. battery max-endurance: 1 month.
Claims (10)
1. a switch cabinet of converting station temperature/humidity measuring system, it is characterized in that, comprise Temperature Humidity Sensor, MCU controller, storage unit, gsm communication module and logic control element, described MCU controller is connected with Temperature Humidity Sensor, storage unit, gsm communication module and logic control element respectively;
Wherein said Temperature Humidity Sensor, gathers for this locality realizing temperature and humidity information;
Described MCU controller, the data for adopting Temperature Humidity Sensor are carried out process and are integrated normalization, control gsm communication module work, and are worked by steering logic control module;
Described storage unit, the data for sampling this locality record and carry out log management;
Described gsm communication module is used for being receive and transmission information;
Described logic control element, for realizing the control linkage of external equipment.
2. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, it is characterized in that, described Temperature Humidity Sensor comprises temperature-sensing probe and resistance-type lithium chloride hygrometer, wherein temperature-sensing probe is for realizing the measurement of local temperature, and described resistance-type lithium chloride hygrometer is for responding to local humidity parameter.
3. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, is characterized in that, described gsm communication module comprises the GSM chip and GSM antenna that connect successively, and described GSM chip is connected with MCU controller.
4. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 3, it is characterized in that, when user's needs obtain the temperature-humidity monitoring data in switch cubicle, inquired about by the mode of note, comprise the humiture data can inquiring about current time, or inquire about the average data of concrete some day and the accidental data of certain day.
5. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, it is characterized in that, also comprise power module, this power module comprises electric power management circuit, solar panel and chargeable lead-acid accumulator, and described electric power management circuit is connected with solar panel and chargeable lead-acid accumulator respectively.
6. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, is characterized in that, described gsm communication module is according to the note of the time set to designated terminal transmission humiture information.
7. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, is characterized in that, described solar panel adopts MPPT controller for solar.
8. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, it is characterized in that, also comprise the alarm module be connected with MCU controller, when MCU controller judges that the humiture information gathered exceedes setting threshold value, control alarm module and carry out this locality warning, warning message is transferred to remote terminal immediately simultaneously.
9. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 8, is characterized in that, described alarm module is audible-visual annunciator.
10. a kind of switch cabinet of converting station temperature/humidity measuring system according to claim 1, is characterized in that, described MCU controller is by UART interface and gsm communication module, and described MCU controller is connected with Temperature Humidity Sensor by iic bus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410682976.1A CN104330117A (en) | 2014-11-24 | 2014-11-24 | Transformer substation switch cabinet temperature and humidity measurement system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410682976.1A CN104330117A (en) | 2014-11-24 | 2014-11-24 | Transformer substation switch cabinet temperature and humidity measurement system |
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| CN104330117A true CN104330117A (en) | 2015-02-04 |
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| CN201410682976.1A Pending CN104330117A (en) | 2014-11-24 | 2014-11-24 | Transformer substation switch cabinet temperature and humidity measurement system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353706A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Temperature measuring device |
| CN106370233A (en) * | 2016-10-13 | 2017-02-01 | 国家电网公司 | Vehicle-mounted mobile substation temperature and humidity remote monitoring device |
| CN109211330A (en) * | 2018-10-30 | 2019-01-15 | 广西电网有限责任公司贵港供电局 | A kind of intelligent temperature and humidity monitoring system reminded with short message |
| CN110941296A (en) * | 2019-11-18 | 2020-03-31 | 国网天津市电力公司电力科学研究院 | Intelligent condensation-preventing control system for switch room and control method thereof |
| CN113703360A (en) * | 2021-08-24 | 2021-11-26 | 常州步新自动化科技有限公司 | Acquisition controller with intelligent alarm function |
| AT524646A1 (en) * | 2020-12-17 | 2022-07-15 | Omicron Energy Solutions Gmbh | Automatic monitoring of a transformer device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202814596U (en) * | 2012-09-06 | 2013-03-20 | 上海欣影电力科技发展有限公司 | Wireless temperature on-line monitoring device used for base station type switch cabinet |
| CN203037358U (en) * | 2012-12-13 | 2013-07-03 | 西安理工大学 | High tension switchgear contact temperature monitoring system based on Zigbee |
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2014
- 2014-11-24 CN CN201410682976.1A patent/CN104330117A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814596U (en) * | 2012-09-06 | 2013-03-20 | 上海欣影电力科技发展有限公司 | Wireless temperature on-line monitoring device used for base station type switch cabinet |
| CN203037358U (en) * | 2012-12-13 | 2013-07-03 | 西安理工大学 | High tension switchgear contact temperature monitoring system based on Zigbee |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353706A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Temperature measuring device |
| CN106370233A (en) * | 2016-10-13 | 2017-02-01 | 国家电网公司 | Vehicle-mounted mobile substation temperature and humidity remote monitoring device |
| CN109211330A (en) * | 2018-10-30 | 2019-01-15 | 广西电网有限责任公司贵港供电局 | A kind of intelligent temperature and humidity monitoring system reminded with short message |
| CN110941296A (en) * | 2019-11-18 | 2020-03-31 | 国网天津市电力公司电力科学研究院 | Intelligent condensation-preventing control system for switch room and control method thereof |
| AT524646A1 (en) * | 2020-12-17 | 2022-07-15 | Omicron Energy Solutions Gmbh | Automatic monitoring of a transformer device |
| CN113703360A (en) * | 2021-08-24 | 2021-11-26 | 常州步新自动化科技有限公司 | Acquisition controller with intelligent alarm function |
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Application publication date: 20150204 |