CN102507029A - Multipoint temperature monitoring device and method of high-voltage switch cabinet - Google Patents
Multipoint temperature monitoring device and method of high-voltage switch cabinet Download PDFInfo
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- CN102507029A CN102507029A CN2011103160780A CN201110316078A CN102507029A CN 102507029 A CN102507029 A CN 102507029A CN 2011103160780 A CN2011103160780 A CN 2011103160780A CN 201110316078 A CN201110316078 A CN 201110316078A CN 102507029 A CN102507029 A CN 102507029A
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Abstract
The invention discloses a multipoint temperature monitoring device and method of a high-voltage switch cabinet and relates to the field of automatic control monitoring. The device consists of two main parts, namely a temperature measuring module and a display panel module. The method comprises the following steps: the temperature sensor module converts temperature into a digital quantity and transmits temperature data obtained by conversion to a first single chip microcomputer, the first single chip microcomputer processes and packets the temperature data and then sends the data to a first radio-frequency transceiver and the first radio-frequency transceiver sends the processed data according to a wireless protocol; and a second radio-frequency transceiver receives the data sent by the radio-frequency transceiver, unpacks the data and transmits the data to the second single chip microcomputer, and the second single chip microcomputer processes the data and transmits the processed data to a display screen module for displaying the temperature data. The multipoint temperature monitoring device is based on a low-power-consumption design and is powered by a battery, is small in system volume, simple and flexible to install, stable in operation, flexible in expansion and low in cost. The multipoint temperature monitoring device can be expanded to other temperature measuring field.
Description
Technical field
The present invention relates to automatic monitoring control field, specifically, particularly high-tension switch cabinet temperature survey and transmission technology.
Background technology
Along with modern power systems towards high voltage, big unit, jumbo developing rapidly, to the power system power supply reliability require increasingly high.High-tension switch cabinet is important electrical equipment, and positions such as the contact in the switch and bus row junction are because of aging or contact resistance is excessive generates heat, because most electrical equipments employing enclosed construction; Radiating effect is poor, and accumulation is big, and is in high voltage for a long time; Move under big electric current and the fully loaded condition; Its result causes heat to assemble aggravation, if effective monitoring measure is not taked in temperature rise, with the safe operation of entail dangers to electrical equipment.Particularly when electric power was failed because, powerful electric current made inside electric appliance temperature rise aggravation, and electric insulation is seriously damaged, and makes the electrical equipment lost of life, even the major accident that causes electrical equipment to burn.Solving the switch cubicle problems of excessive heat is to stop the key that this type of accident takes place, and the situation of contact temperature in the logical monitoring switch cubicle can prevent effectively that the accident of switch cubicle from taking place.But because structure and characteristic in the switch cubicle can't be carried out manual work inspection thermometric, owing in the high-voltage board exposed high pressure is arranged, the space is little simultaneously, and its insulating requirements also cannot discretionary wiring (method) be carried out thermometric, and therefore traditional wired thermometric mode all can't effectively be dealt with problems.And part utilizes the device part of wireless technology thermometric to adopt coil-induced power taking; Increased the complexity that equipment is installed undoubtedly; And the installation site had certain requirement; Another part adopts powered battery; The increase of clock on-off control circuit can prolong battery service time on the one hand, makes all increases to some extent of temperature measurement module volume and cost on the other hand again, utilizes being interrupted the data receiver formula and then can on stand-by time and system bulk and cost, reaching balance of Radio Transmission Technology and low energy-consumption electronic device and setting.Therefore the temperature monitoring wireless transmitting system of realizing super low-power consumption is the important means that guarantees the high-tension switch cabinet safe operation.
Summary of the invention
The present invention seeks to solve electric shock winding displacement equitemperature in the high-tension switch cabinet can not be effectively, safety, measure the problem of transmission easily; Principle is to integrate the module of one through design temperature measurement and less radio-frequency; Directly be attached to the place that needs to measure temperature; Utilize radio frequency that temperature data is sent on the receiving trap, receiving trap displays temperature and warning message are realized the independence of temperature measuring equipment and the function of temperature data wireless transmission.
The present invention realizes that the technical scheme of purpose is:
High-tension switch cabinet multipoint temperature monitoring device; It is characterized in that constituting by temperature measurement module and panel receiving and displaying device two large divisions; Temperature measurement module is made up of temperature sensor module, first radio-frequency module, first power module and storer; First radio-frequency module is connected in series first RF transceiver by first single-chip microcomputer and constitutes, and first power module is given the power supply of the said temperature sensor module and first radio-frequency module respectively; The panel receiving and displaying device is made up of second radio-frequency module, second source module, display panel module and storer; Second radio-frequency module is connected in series second RF transceiver by second singlechip and constitutes, and the second source module is given the power supply of second radio-frequency module and display panel module respectively; First radio-frequency module and the second radio-frequency module radio communication.
The number of said temperature measurement module is the natural number greater than 1.
Said temperature sensor module adopts the DS18B20 chip.
Said radio-frequency module adopts the integrated chip nRF9E5 of embedded single-chip microcomputer and RF transceiver chip.
The method of high-tension switch cabinet multipoint temperature monitoring device; The temperature sensor module inversion temperature is digital quantity and the temperature data that is converted to is transferred to first single-chip microcomputer; First single-chip microcomputer sends to first RF transceiver after temperature data is handled packing, and the data after first RF transceiver will be handled are sent according to wireless protocols; Second RF transceiver receives that untiing data after the data that RF transceiver sends sends second singlechip to, and second singlechip is delivered to display panel module displays temperature data after data are handled.
Temperature measurement module of the present invention uses the high capacity industrial battery as power supply, makes the small and exquisite independence of temperature measurement module to be positioned over flexibly Anywhere according to concrete ambient conditions, need not anyly connect up, and saves erected cost, and can arbitrarily place as required.Owing to used the super low-power consumption design, sustainable use surpassed for 2 years under the power supply normal condition.
Display module of the present invention can be installed on the high-voltage switch gear cabinet panel, through the wireless receiving temperature data, shows inner each point temperature and each warning message in real time, and is easy for installation, can according to circumstances it be installed on other positions in the use.
The invention has the beneficial effects as follows; Through the design of low-power consumption, advantages of small volume need not be connected up in any position that makes temperature-measuring module can independently be positioned over high-tension switch cabinet; Can be installed on small space, and utilize RF-wise to transmit temperature data and show receiving on the panel.This invention has overcome the wiring drawback that traditional thermometric mode and temperature data wire transmission mode bring to a certain extent, and low power dissipation design has also overcome electric power persistent problem in some wireless temperature measurement mode simultaneously.And the method for the use of integrated device and low power dissipation design reduces to have reached balance preferably on volume and the lasting electric power reducing cost.
Description of drawings
Fig. 1 is an embodiment of the invention high-tension switch cabinet multipoint temperature monitoring apparatus structure block diagram;
Fig. 2 is embodiment of the invention temperature measurement module and display module theory diagram;
Fig. 3 is an embodiment of the invention temperature acquisition wireless transmission partial circuit schematic diagram;
Wherein among the figure: 11. temperature measurement modules, 12. display modules, 21. temperature sensor module, 22. single-chip microcomputers, 23. RF transceivers, 24. RF transceivers, 25. single-chip microcomputers, 26. display panel modules, 27. radio-frequency modules, 28. radio-frequency modules.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain
Fig. 1 is the embodiment of the invention, and temperature measurement module 11 takes wireless mode to be connected with display module 12 among Fig. 1.Temperature measurement module 11 independently is installed on the contactor that needs thermometric in the high-tension switch cabinet, and temperature measurement module is responsible for regularly measuring temperature data, and requires through wireless timed sending temperature data according to setting.Display module 12 is installed on switch cabinet panel or other control panels, and it is responsible for receiving the temperature data that is sent by temperature measurement module 11, and is presented on the panel after handling.
Fig. 2 is the embodiment of the invention, and temperature sensor module 21 is connected with single-chip microcomputer 22, and single-chip microcomputer 22 is connected with RF transceiver 23, and RF transceiver 24 is connected with single-chip microcomputer 25, and single-chip microcomputer 25 is connected with display panel module 26.Temperature sensor module 21, single-chip microcomputer 22, RF transceiver 23 constitutes temperature measurement module; RF transceiver 24, single-chip microcomputer 25, display panel module 26 constitutes display module.Single-chip microcomputer 22 constitutes radio-frequency module 27 with RF transceiver 23, and RF transceiver 24 constitutes radio-frequency module 28 with single-chip microcomputer 25.The temperature measurement module course of work does; Time is up that back temperature sensor 21 inversion temperatures are digital quantity for program setting; Temperature data is transferred to single-chip microcomputer 22; Send to RF transceiver 23 after 22 pairs of temperature datas of single-chip microcomputer are handled packing, the data after RF transceiver 23 will be handled send according to wireless protocols.The display module course of work does, RF transceiver 24 receives that untiing data after the data of 23 of RF transceivers sends single-chip microcomputer 25 to, delivers to display panel module 26 displays temperature data after 25 pairs of data of single-chip microcomputer are handled.
In the temperature measurement module course of work, behind the program start, carried out thermometric one time in per 10 minutes under the temperature sensor module normal condition, whenever send a temperature data by radio-frequency module and give display module at a distance from 6 thermometrics.Each temperature measurement data all with last time temperature measurement data relatively, if the temperature measurement data absolute difference then directly sends temperature data by radio-frequency module, otherwise whenever sends a secondary data at a distance from 6 thermometrics greater than 2 degree.If the value that records temperature data is during greater than a certain dangerous values, system changes per 2 minutes into and surveys a temperature and all send temperature data at every turn.Free time between thermometric and transmission data; System all transfers low-power consumption standby pattern or power-down mode to; Because thermometric and transmitting time are very short, transmitting time is accomplished in second at 2-3 basically, and the power consumption time is considerably less during work; Plenty of time all is stand-by time, so system normal working hours can be above 2 years under outfit industrial battery situation.
Fig. 3 is an embodiment of the invention temperature acquisition wireless transmission partial circuit schematic diagram, and radio transmitting and receiving chip is nRF9E5; Eeprom memory is 25AA320; Temperature sensor is DS18B20; Temperature sensor is connected with the P00 mouth of nRF9E5 through the I/O mouth, realizes the temperature data transmission, and 2 pin and 8 pin are ground connection and power supply respectively, and the I/O mouth provides and draws simultaneously; Radio-frequency antenna can use single-ended 50 Ω antennas as the case may be, also can use and print the version antenna; The SPI mouth linker storer of radio frequency chip simultaneously also can be multiplexing with other equipment; Also can fire program in radio frequency chip in the product and save external memory storage.The EEPROM program storage is used for the storage system program.Behind the electrification reset, under the guiding of boot section, the RAM of 1 4KB of program in EEPROM is loaded into its sheet, the RAM of this 4KB also is used for the storing temperature data to radio-frequency module through the SPI interface.The MISO of radio-frequency module is connected with the SDO of storer, the data that the SDO of reception EEPROM sends here; SCK is connected to the SCK of EEPROM, clock signal is provided for the SCK of EEPROM; MOSI is connected to the SDI of EEPROM, transmits data to the SDI of EEPROM, and EECSN is connected to the CSN of EEPROM, send enable signal for the CSN of EEPROM.
The present invention can adopt various ways to implement and not break away from spirit of the present invention or essential characteristic, only if special the appointment, the foregoing description is not limited to any details that the front is described.Apparatus and method of the present invention can be selected the disclosed circuit structure of the prior art of other any appropriate formats.The present invention does not limit.
Claims (5)
1. high-tension switch cabinet multipoint temperature monitoring device; It is characterized in that constituting by temperature measurement module and panel receiving and displaying device two large divisions; Temperature measurement module is made up of temperature sensor module (21), first radio-frequency module (27), first power module and storer (29); First radio-frequency module (27) is made up of first single-chip microcomputer (22) serial connection first RF transceiver (23), and first power module is given the power supply of said temperature sensor module (21) and first radio-frequency module (27) respectively; The panel receiving and displaying device is made up of second radio-frequency module (28), second source module, display panel module (26) and storer (29); Second radio-frequency module (28) is made up of second singlechip (25) serial connection second RF transceiver (24), and the second source module is given the power supply of second radio-frequency module (28) and display panel module (26) respectively; First radio-frequency module (27) and second radio-frequency module (28) radio communication.
2. by the described high-tension switch cabinet multipoint temperature monitoring of claim 1 device, the number that it is characterized in that said temperature measurement module is the natural number greater than 1.
3. by the described high-tension switch cabinet multipoint temperature monitoring of claim 1 device, it is characterized in that said temperature sensor module (21) adopts the DS18B20 chip.
4. by the described high-tension switch cabinet multipoint temperature monitoring of claim 1 device, it is characterized in that said radio-frequency module adopts the integrated chip nRF9E5 of embedded single-chip microcomputer and RF transceiver chip.
5. the method for a high-tension switch cabinet multipoint temperature monitoring device as claimed in claim 1; It is characterized in that temperature sensor module (21) inversion temperature is digital quantity and the temperature data that is converted to is transferred to first single-chip microcomputer (22); First single-chip microcomputer (22) sends to first RF transceiver (23) after temperature data is handled packing, and the data after first RF transceiver (23) will be handled are sent according to wireless protocols; Second RF transceiver (24) receives that untiing data after the data that RF transceiver (23) sends sends second singlechip (25) to, and second singlechip (25) is delivered to display panel module (26) displays temperature data after data are handled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103160780A CN102507029A (en) | 2011-10-18 | 2011-10-18 | Multipoint temperature monitoring device and method of high-voltage switch cabinet |
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| CN2011103160780A CN102507029A (en) | 2011-10-18 | 2011-10-18 | Multipoint temperature monitoring device and method of high-voltage switch cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778769A (en) * | 2014-01-16 | 2014-05-07 | 河海大学 | High-voltage switch cabinet multi-point monitoring system based on wireless temperature sensor network |
| CN109000803A (en) * | 2018-07-30 | 2018-12-14 | 袁茂银 | A kind of high-tension switch cabinet thermal imaging monitoring device |
| CN109253813A (en) * | 2018-10-19 | 2019-01-22 | 华普(天津)检测技术有限公司 | One kind being based on LORA super low-power consumption cold chain workshop temperature monitoring device |
| CN113465683A (en) * | 2021-07-28 | 2021-10-01 | 郑州信工智能化系统有限公司 | Composite sensor for measuring current and temperature |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051018Y (en) * | 2007-05-31 | 2008-04-23 | 淄博惠工仪器有限公司 | Switch case contact temperature monitoring and alarming system |
| CN201497587U (en) * | 2009-09-19 | 2010-06-02 | 青岛科技大学 | Short-distance wireless temperature measuring device |
-
2011
- 2011-10-18 CN CN2011103160780A patent/CN102507029A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051018Y (en) * | 2007-05-31 | 2008-04-23 | 淄博惠工仪器有限公司 | Switch case contact temperature monitoring and alarming system |
| CN201497587U (en) * | 2009-09-19 | 2010-06-02 | 青岛科技大学 | Short-distance wireless temperature measuring device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778769A (en) * | 2014-01-16 | 2014-05-07 | 河海大学 | High-voltage switch cabinet multi-point monitoring system based on wireless temperature sensor network |
| CN109000803A (en) * | 2018-07-30 | 2018-12-14 | 袁茂银 | A kind of high-tension switch cabinet thermal imaging monitoring device |
| CN109253813A (en) * | 2018-10-19 | 2019-01-22 | 华普(天津)检测技术有限公司 | One kind being based on LORA super low-power consumption cold chain workshop temperature monitoring device |
| CN113465683A (en) * | 2021-07-28 | 2021-10-01 | 郑州信工智能化系统有限公司 | Composite sensor for measuring current and temperature |
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Application publication date: 20120620 |