CN202188915U - High pressure electric appliance temperature measurement system based on open frequency range wireless transmission - Google Patents
High pressure electric appliance temperature measurement system based on open frequency range wireless transmission Download PDFInfo
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- CN202188915U CN202188915U CN2011202592227U CN201120259222U CN202188915U CN 202188915 U CN202188915 U CN 202188915U CN 2011202592227 U CN2011202592227 U CN 2011202592227U CN 201120259222 U CN201120259222 U CN 201120259222U CN 202188915 U CN202188915 U CN 202188915U
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- radome
- pressure side
- pcb
- wireless transmission
- high pressure
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Abstract
The utility model relates to a high pressure electric appliance temperature measurement system based on open frequency range wireless transmission. Through wireless transmission, a high pressure side portion is connected to a receiving terminal which transfers to a host computer through a multi-point network; the high pressure side portion is composed of an energy supply CT, an integrated digital temperature sensor, a control and transmitting circuit plate, a shielding case and an external PCB (Printed circuit board) sending antenna; the energy supply CT and the control and transmitting circuit plate are both fixed in the shielding case; the integrated digital temperature sensor is in connection with the control and transmitting circuit plate of the shielding case through leads; the external PCB sending antenna is inlayed on a PCB of the shielding case. The high pressure electric appliance temperature measurement system of the utility model guarantees the accuracy of measuring temperatures and low costs and performs multi-point temperature on line monitoring in a switch cubicle. A receiving terminal is arranged in the switch cubicle to receive six circuits of wireless temperature data signals and the output received by the circuits is performed networking and then outputted to the host computer by a switchboard through intersected netting twines to realize on-line monitoring. The high pressure electric appliance temperature measurement system of the utility model can be used as an independent system or can be combined with an existing transformer station automatic system according to needs.
Description
Technical field
The utility model relates to a kind of High-Voltage Electrical Appliances temp measuring system based on open frequency range wireless transmission, is used for need carrying out the dynamic and static contact of High-Voltage Electrical Appliances such as high-tension switch cabinet, busbar etc. the temperature survey of temperature monitoring part.
Background technology
Conventional temperature monitoring method can not be found the incipient fault of high-tension switch cabinet, development trend that more can't failure judgement.To the deficiency of manual inspection, the technology of having studied at present and having used mainly is divided into according to the difference of temperature-measurement principle: infrared imaging, infrared probe thermometric, optical fiber temperature-measurement and traditional contact temperature-measuring, infrared signal transmission.
Infrared imagery technique (see Xue Jindong. infrared detection technology is at application on power system [J]. Shanxi electric power, 2007 (1):, judge the temperature of switch cubicle indirectly through infared spectrum 14-15.) through the infared spectrum of thermal infrared imager acquisition switch cubicle.
The infrared probe thermometric.Some infrared temperature probes are installed on switch cabinet body, are confirmed its temperature through the infrared radiation that receives electrical contact.
Optical fiber temperature-measurement (see Wu Gang, lijin. the application [J] of optical fiber in the switch cabinet contact temperature monitoring. high pressure engineering, 2006 (2): 122.).On the electrical contact surface, mount fibre optic temperature sensor, be connected to the optical fiber detuner that is installed on cabinet, the corresponding temperature data of optical fiber detuner output through optical cable.
Tradition contact temperature-measuring, infrared signal transmission.Adopt traditional contact type temperature sensor (thermopair, succession temperature sensor etc.) thermometric, sensor signal processing circuit is installed on the high voltage bus, and power supply obtains from high voltage bus through inductive coil.Measure the gained signal through numerical coding rear drive infrared transmitting tube, receive infrared signal, obtaining temperature data through decoding circuit by the infrared receiving tube that is installed on the cabinet electronegative potential.
Summary of the invention
The purpose of the utility model to High-Voltage Electrical Appliances such as high-tension switch cabinet in the electrical energy production process; Divide, close the easy occurrence temperature risings in position such as device; Can cause the situation such as damage or fire generation of equipment when serious; Need carry out temperature monitoring to it, and there are various inconvenience in manual inspection and can not monitor in real time, and a kind of High-Voltage Electrical Appliances temp measuring system based on open frequency range wireless transmission is provided.
The technical scheme of the utility model is:
High-Voltage Electrical Appliances temp measuring system based on open frequency range wireless transmission; Comprise high-pressure side part, receiving end, host computer, the high-pressure side part links to each other with receiving end through wireless transmission, and networking is transferred to host computer to receiving end through multiple spot; The high-pressure side part is as the part of thermometric and wireless transmission temperature data signal; And receiving end is as the wireless signal that receives temperature data, and networking is transferred to the host computer of monitoring usefulness through multiple spot, and the high-pressure side part need be installed in the position that need carry out temperature monitoring; And receiving end is to be placed on positions such as low voltage control chamber; Can be placed on the interior any position of coverage of wireless transmission as required, described high-pressure side part is made up of energy supply CT, integrated digital formula temperature sensor, control and transmitter card, radome and external printing board PCB transmitting antenna, and energy supply CT, control and transtation mission circuit are separately fixed at radome inside; Energy supply CT is respectively control and transtation mission circuit and the power supply of integrated digital formula temperature sensor; Integrated digital formula temperature sensor is connected with the control and the transmitter card of radome through lead, is placed on the outside of shielding box, can be placed on the place that needs temperature monitoring; External PCB transmitting antenna is embedded on the pcb board of radome.The size of energy supply CT, control and transmitter card and radome (external diameter, internal diameter, thickness) can be adjusted size as required, and energy supply CT, control and transmitter card, integrated digital formula temperature sensor are all buied from market.
Described radome is made up of a scale copper and two pcb boards that are laid with Copper Foil, and scale copper turns to a cylindrical shape, and interface is used the scolding tin firm welding; With scolding tin the cylindrical edge that the solder joint on two pcb boards that are laid with Copper Foil and scale copper turn to is welded then, and guarantee that the Copper Foil on the pcb board closely contacts with the right cylinder of scale copper formation, constitutes a radome.
Adopting semi-conductive integrated digital temperature sensor to be attached to needs the thermometric position as temperature-sensing element, is placed on the bus high-pressure side together with relevant control and transtation mission circuit and energy supply coil.The energy supply coil adopts fast saturated energy supply CT that temperature element and control and transtation mission circuit are supplied power, and can when giving the reliable energy supply in high-pressure side, guarantee reliable insulation over the ground.The digital temperature numerical value of conversion sends to the receiving end that is in low-pressure side switch cubicle electronegative potential partly through open frequency range wireless transmission method, is transferred to the on-line monitoring that the host computer of monitoring usefulness is realized temperature through switch through crossover network cables after the multiple spot networking.
Existing four kinds of technology of listing more than the contrast the utlity model has following advantage:
The infrared imaging temperature measuring technology; Because the high-tension switch cabinet inner structure is complicated, element blocks more each other, and the accuracy of obtaining temperature data through infared spectrum indirectly can not meet the demands; And the cost to the Computer Recognition Technology of infared spectrum is high, is unfavorable for promoting.The utility model can be because of the complicated accuracy that influences measured temperature of switch cubicle inner structure, and the semiconductor integrated digital temperature sensor of use has 0.125 ℃ temperature measurement accuracy, can guarantee to measure the accuracy of temperature; And during the components and parts that adopt all the most often used, cost was low.
The mode of infrared probe thermometric receives the influence that the switch cubicle inner member blocks the infrared radiation light path easily, can not accurately record contact temperature.Metal parts in the switch cubicle block the coverage that reduces wireless transmission to a certain extent; But the utility model is employed on the radome of high-pressure side circuit PCB (Print Circuit Board printed circuit board (PCB) is installed; Below all abbreviate PCB as) antenna; Not only can avoid problem, can also increase the coverage of wireless transmission because of having adopted radome to cause wireless signal to transmit out.
The mode of optical fiber temperature-measurement is that mainly optical fiber sensing network analyser volume is bigger, can't install in that switch cubicle is inner, and this analyser only provides the communication interface with the separate unit PC simultaneously, can't be embedded in the existing electric substation automation system.And the high-pressure side partial volume of the utility model is little, can directly be enclosed within on the high pressure busbar, dynamic/static contact of high-tension switch cabinet, and occupation space is little, and energy supply CT can make opening form, and is quick and easy for installation.
The thermometric mode of tradition contact, infrared signal transmission does not adopt shield technology, in the inner narrow space of high-tension switch cabinet, may reduce the insulation clear distance of switch cubicle.And the copper radome has been adopted in the outside of the utility model circuit in the high-pressure side; This radome can adopt pcb board and part copper sheet to constitute, and radome links to each other with the reference ground and the high-voltage side bus of high-pressure side circuit, and radome and busbar voltage are carried out the equipotential processing; Can protect on high-tension side circuit on the one hand; Can avoid simultaneously the influence of the electromagnetic signal of outside to the high-pressure side circuit, one side is little owing to the high-pressure side circuit takies volume in addition, does not influence the insulation clear distance of switch cubicle basically.
Can be to carrying out the on-line monitoring of multi-point temp in the switch cubicle.A receiving end of placing in the switch cubicle can receive maximum six road wireless temperature data-signals, through networking is carried out in the output of multipath reception end, is transferred to host computer through switch through crossover network cables, realizes on-line monitoring.This utility model system can self-organizing system, also can be melted into as required in the existing electric substation automation system.
Description of drawings
Fig. 1 a is for making the scale copper synoptic diagram of high-pressure side circuit radome;
Fig. 1 b is for making the pcb board of high-pressure side circuit radome;
Fig. 2 is the radome overall schematic that completes;
Fig. 3 makes synoptic diagram for the PCB antenna;
Fig. 4 is the schematic perspective view of the utility model high-pressure side circuit;
Fig. 5 is installed in the overall schematic perspective view on the isolating switch static contact for the utility model high-pressure side circuit.
Wherein among the figure: 1-scale copper, 2-constitute a pcb board of radome, the solder joint of 3-welding usefulness, the 4-blank space all is laid with Copper Foil, to be that scale copper is crooked constitute for 5-PCB antenna, 6-, 8-is the barricade that pcb board constitutes, its surface coverage Copper Foil; The 7-PCB antenna; The guide rod of isolating switch static contact can be passed in cavity in the middle of the 9-; The 10-radome is inner, for placing the place of control and transmitter card and energy supply CT; 11-integrated digital formula temperature sensor; Lead between 12-temperature sensor and the circuit board; 13-needs the position (this position can be selected any position as required) of thermometric; Guide rod of 14-isolating switch static contact.
Embodiment
In conjunction with accompanying drawing the utility model is done further to describe.
The utility model comprises high-pressure side part, receiving end, host computer; The high-pressure side part links to each other with receiving end through wireless transmission, and networking is transferred to host computer to receiving end through multiple spot, and the high-pressure side part is as the part of thermometric and wireless transmission temperature data signal; And receiving end is as the wireless signal that receives temperature data; And being transferred to the host computer of monitoring usefulness through the multiple spot networking, the high-pressure side part need be installed in the position that need carry out temperature monitoring, and receiving end is to be placed on position such as low voltage control chamber; Can be placed on the interior any position of coverage of wireless transmission as required; As shown in Figure 4, described high-pressure side part is made up of energy supply high-pressure side CT, integrated digital formula temperature sensor, control and transmitter card, radome and external printing board PCB transmitting antenna, and energy supply CT, control and transtation mission circuit are separately fixed at radome inside; Energy supply CT is respectively control and transtation mission circuit and the power supply of integrated digital formula temperature sensor; Integrated digital formula temperature sensor is connected with the control and the transmitter card of radome through lead, is placed on the outside of shielding box, can be placed on the place that needs temperature monitoring; External PCB transmitting antenna is embedded on the pcb board of radome.The size of energy supply CT, control and transmitter card and radome (external diameter, internal diameter, thickness) can be adjusted size as required, and energy supply CT, control and transmitter card, integrated digital formula temperature sensor are all buied from market.
Like Fig. 1 a, Fig. 1 b, shown in Figure 2, described radome is made up of a scale copper 1 and two pcb boards 2 that are laid with Copper Foil 4, and scale copper 1 turns to a cylindrical shape, and interface is used the scolding tin firm welding; With scolding tin solder joint 3 on two pcb boards 2 that are laid with Copper Foil 4 and the cylindrical edge that scale copper 1 turns to are welded then, and guarantee that the Copper Foil 4 on the pcb board 2 closely contacts with the right cylinder of scale copper 1 formation, constitutes a radome.
The way of external PCB antenna: elder generation's basis is the knowwhy of antenna integrated (compact integrated antennas) making closely; The type that comprises tuning, gain, impedance matching and the selected PCB antenna of corresponding radiation pattern of antenna; That select in this example is curved antenna (meander antenna); With its be attached to radome pcb board above, center on by Copper Foil on every side, as shown in Figure 3.
As shown in Figure 5; Concrete mounting means to the high-pressure side part of this utility model describes then: with radome be enclosed within need carry out temperature monitoring the place (like the moving contact and the static contact of isolating switch; If opening form can be processed with this high-pressure side part in position that inconvenience such as busbar covers is entered), be fixed; Integrated digital formula temperature sensor is installed in the position that need carry out thermometric, guarantees that temperature sensor and thermometric position surface of contact are enough big, and contact is good, is fixed; With the one side that the PCB antenna is arranged on the radome pcb board towards the residing direction of the receiving end of comparatively open and low-pressure side.
Adopting semi-conductive integrated digital temperature sensor to be attached to needs the thermometric position as temperature-sensing element, is placed on the bus high-pressure side together with relevant control and transtation mission circuit and energy supply coil.The energy supply coil adopts fast saturated energy supply CT that temperature element and control and transtation mission circuit are supplied power, and can when giving the reliable energy supply in high-pressure side, guarantee reliable insulation over the ground.The digital temperature numerical value of conversion sends to the receiving end that is in low-pressure side switch cubicle electronegative potential partly through open frequency range wireless transmission method, is transferred to the on-line monitoring that the host computer of monitoring usefulness is realized temperature through switch through crossover network cables after the multiple spot networking.
Claims (2)
1. based on the High-Voltage Electrical Appliances temp measuring system of opening the frequency range wireless transmission; Comprise high-pressure side part, receiving end, host computer; The high-pressure side part links to each other with receiving end through wireless transmission; Networking is transferred to host computer to receiving end through multiple spot; It is characterized in that: described high-pressure side part is made up of energy supply high-pressure side CT, integrated digital formula temperature sensor, control and transmitter card, radome and external printing board PCB transmitting antenna, and energy supply CT, control and transtation mission circuit are separately fixed at radome inside, and energy supply CT is respectively control and transtation mission circuit and the power supply of integrated digital formula temperature sensor; Integrated digital formula temperature sensor is connected with the control and the transmitter card of radome through lead, and external PCB transmitting antenna is embedded on the pcb board of radome.
2. the High-Voltage Electrical Appliances temp measuring system based on open frequency range wireless transmission according to claim 1; It is characterized in that: described radome is made up of a scale copper and two pcb boards that are laid with Copper Foil; Scale copper turns to a cylindrical shape, and interface is used the scolding tin firm welding; With scolding tin the cylindrical edge that the solder joint on two pcb boards that are laid with Copper Foil and scale copper turn to is welded, and guarantee that the Copper Foil on the pcb board closely contacts with the right cylinder of scale copper formation, constitutes a radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592227U CN202188915U (en) | 2011-07-21 | 2011-07-21 | High pressure electric appliance temperature measurement system based on open frequency range wireless transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202592227U CN202188915U (en) | 2011-07-21 | 2011-07-21 | High pressure electric appliance temperature measurement system based on open frequency range wireless transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188915U true CN202188915U (en) | 2012-04-11 |
Family
ID=45920358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202592227U Expired - Fee Related CN202188915U (en) | 2011-07-21 | 2011-07-21 | High pressure electric appliance temperature measurement system based on open frequency range wireless transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198957U1 (en) * | 2020-03-16 | 2020-08-04 | Общество с ограниченной ответственностью "РУССКИЕ ИНТЕЛЛЕКТУАЛЬНЫЕ ТЕХНОЛОГИИ АВТОМАТИЗАЦИИ" | Wireless self-contained thermal sensor |
| CN113820037A (en) * | 2021-09-07 | 2021-12-21 | 云南电网有限责任公司临沧供电局 | Elbow type head temperature on-line monitoring device based on cloud platform |
-
2011
- 2011-07-21 CN CN2011202592227U patent/CN202188915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU198957U1 (en) * | 2020-03-16 | 2020-08-04 | Общество с ограниченной ответственностью "РУССКИЕ ИНТЕЛЛЕКТУАЛЬНЫЕ ТЕХНОЛОГИИ АВТОМАТИЗАЦИИ" | Wireless self-contained thermal sensor |
| CN113820037A (en) * | 2021-09-07 | 2021-12-21 | 云南电网有限责任公司临沧供电局 | Elbow type head temperature on-line monitoring device based on cloud platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20160721 |