CN210922849U - 110KV transmission line strain clamp temperature measurement system - Google Patents
110KV transmission line strain clamp temperature measurement system Download PDFInfo
- Publication number
- CN210922849U CN210922849U CN201921625725.4U CN201921625725U CN210922849U CN 210922849 U CN210922849 U CN 210922849U CN 201921625725 U CN201921625725 U CN 201921625725U CN 210922849 U CN210922849 U CN 210922849U
- Authority
- CN
- China
- Prior art keywords
- resistor
- pin
- chip
- circuit
- capacitor
- 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.)
- Active
Links
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims description 48
- 238000001514 detection method Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
The utility model provides a 110KV transmission line strain clamp temperature measurement system, including on-the-spot detecting element and remote monitoring unit, the on-the-spot detecting element includes solar energy power supply unit, power conversion unit, infrared temperature measurement sensor, processing circuit and wireless communication circuit; the solar power supply unit is used for converting solar energy into direct current and outputting the direct current to the power supply conversion unit, and the power supply conversion unit is used for performing voltage conversion processing on the direct current output by the solar power supply unit and supplying power to the infrared temperature measurement sensor, the processing circuit and the wireless communication circuit; the output end of the infrared temperature sensor is connected with the temperature measurement signal input end of the processing circuit; the all-weather temperature monitoring can be carried out on the strain clamp of the 110KV power transmission line, so that the continuity of the temperature data of the strain clamp is ensured, the monitoring data can be uploaded in real time, and the strain clamp can be displayed through a remote monitoring unit and can give an alarm when the temperature exceeds the limit.
Description
Technical Field
The utility model relates to a temperature measurement system especially relates to a 110KV transmission line strain clamp temperature measurement system.
Background
In 110KV transmission line, strain clamp is used for fixing the wire and bearing the wire pulling force, in strain clamp's course of operation, its temperature will cause the influence to transmission line's steady operation, among the prior art, adopt the artifical mode of patrolling and examining to strain clamp's temperature measurement, the extravagant manpower of this kind of mode, more importantly, lean on the artifical mode of patrolling and examining the temperature measurement, strain clamp's temperature data is discontinuous, be difficult to the accurate temperature change state of judging strain clamp in the course of operation, thereby be unfavorable for transmission line's steady operation.
Therefore, in order to solve the above technical problems, it is necessary to provide a new strain clamp temperature measuring system.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a 110KV transmission line strain clamp temperature measurement system can carry out all-weather temperature monitoring to 110KV transmission line's strain clamp to ensure strain clamp temperature data's continuity, and can upload monitoring data in real time, and show and report an emergency and ask for help or increased vigilance when the temperature is more limited through the remote monitoring unit.
The utility model provides a temperature measuring system for a 110KV transmission line strain clamp, which comprises an on-site detection unit and a remote monitoring unit,
the on-site detection unit comprises a solar power supply unit, a power supply conversion unit, an infrared temperature measurement sensor, a processing circuit and a wireless communication circuit;
the solar power supply unit is used for converting solar energy into direct current and outputting the direct current to the power supply conversion unit, and the power supply conversion unit is used for performing voltage conversion processing on the direct current output by the solar power supply unit and supplying power to the infrared temperature measurement sensor, the processing circuit and the wireless communication circuit;
the number of the infrared temperature measurement sensors is 4, and the output end of each sensor is connected with the temperature measurement signal input end of the processing circuit;
the remote monitoring unit comprises a monitoring host, a touch display, a storage server and an alarm;
the monitoring host is in communication connection with the processing circuit through a wireless communication circuit, the monitoring host is in communication connection with the touch display, the monitoring host is in communication connection with the storage server, and the alarm is connected with the monitoring host.
Further, the processing circuit comprises a controller, a signal conversion circuit and a clock circuit;
the signal output end of the clock circuit is connected with the clock signal input end of the controller, the controller is in communication connection with the monitoring host through the wireless communication circuit, the temperature signal input end of the controller is connected with the output end of the signal conversion circuit, the signal conversion circuit is provided with 4 input ends which are respectively connected with the output ends of the 4 infrared temperature measurement sensors, and the controller is an STC12C5A60S2 single chip microcomputer.
Further, the signal conversion circuit comprises a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4;
one end of a resistor R1 is connected with a pin 1 of a chip U1, the other end of a resistor R1 is grounded through a capacitor C1, a common connection point between a resistor R1 and a capacitor C1 serves as a first signal input end, a pin 2 of a chip U1 is grounded through a resistor R3, a pin 2 of a chip U1 is connected with a pin 1 through a resistor R2, a pin 2 of a chip U1 is connected with a pin 1 of a chip U1 through a capacitor C2, a pin 3 of a chip U1 is connected with one end of a resistor R5, the other end of a resistor R5 is grounded through a resistor R4, a common connection point between a resistor R4 and a resistor R5 serves as a second signal input end, a common connection point between a resistor R4 and a resistor R5 is grounded through a capacitor C4, and a pin 3 of a chip U1 is grounded after being connected in parallel through a capacitor C36;
one end of a resistor R12 is connected with a 7 pin of a chip U1, the other end of a resistor R1 is grounded through a capacitor C8, a common connection point between a resistor R12 and a capacitor C8 serves as a fourth signal input end, a6 pin of a chip U1 is grounded through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin of a chip U1 through a capacitor C7, a 5 pin of a chip U1 is connected with one end of a resistor R8, the other end of a resistor R8 is grounded through a resistor R9, a common connection point between a resistor R8 and a resistor R9 serves as a third signal input end, a common connection point between a resistor R8 and a resistor R9 is grounded through a capacitor C5, and a 5 pin of a chip U1 is grounded after being connected in parallel through a capacitor C36;
the pin 8, the pin 10, the pin 12 and the pin 14 of the chip U1 are used as output ends of the signal conversion circuit and are respectively connected with the pin 30, the pin 31, the pin 36 and the pin 37 of the controller;
wherein, chip U1 is LM2902 chip.
Further, the solar power supply unit comprises a solar panel, a photovoltaic controller and a storage battery;
the output end of the solar cell panel is connected with the input end of the photovoltaic controller, the charging/discharging end storage battery of the photovoltaic controller is connected, the power output end of the photovoltaic controller is connected with the input end of the voltage conversion unit, and the control end of the photovoltaic controller is connected with the controller.
Further, the voltage conversion unit includes a first voltage conversion circuit and a second voltage conversion circuit;
the first voltage conversion circuit converts the 12V voltage of the storage battery into 5V voltage and outputs the 5V voltage to the power supply ends of the controller, the wireless communication circuit and the infrared temperature measurement sensor, and the second voltage conversion circuit converts the 5V voltage output by the first voltage conversion circuit into 3.3V voltage and outputs the 3.3V voltage to the clock circuit.
Further, the processing circuit further comprises an ambient light detection circuit, wherein the ambient light detection circuit comprises a resistor R15, a photoresistor R16, a resistor R18, a resistor R19, a comparator U3, a triode Q1, a capacitor C11, an adjustable resistor R17 and an adjustable resistor R20;
one end of the photoresistor R16 is connected with the output end of the first voltage conversion circuit, the other end of the photoresistor R16 is grounded through an adjustable resistor R17, a common connection point between the photoresistor R16 and the adjustable resistor R17 is connected with the in-phase end of the comparator U3 through a resistor R18, the inverting end of the comparator U3 is grounded after being connected in series with an adjustable resistor R20 through a resistor R19, the output end of the comparator U3 is connected with the base of the triode Q3, the emitter of the triode Q3 is grounded, the collector of the triode Q3 is connected with the output end of the first voltage conversion circuit through a resistor R15, the common connection point between the triode Q3 and the resistor R15 is connected with a pin 23 of the controller, and the collector of the triode Q3 is grounded through a capacitor C11.
Further, the wireless communication circuit is a GPRS circuit.
Further, the clock circuit is a PCF8563 chip.
The utility model has the advantages that: the all-weather temperature monitoring can be carried out on the strain clamp of the 110KV power transmission line, so that the continuity of the temperature data of the strain clamp is ensured, the monitoring data can be uploaded in real time, and the strain clamp can be displayed through a remote monitoring unit and can give an alarm when the temperature exceeds the limit.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the signal conversion circuit of the present invention.
Fig. 3 is a schematic diagram of the ambient light detection circuit of the present invention.
Fig. 4 is a schematic diagram of the clock circuit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the utility model provides a temperature measuring system for a 110KV transmission line strain clamp, which comprises an on-site detection unit and a remote monitoring unit,
the on-site detection unit comprises a solar power supply unit, a power supply conversion unit, an infrared temperature measurement sensor, a processing circuit and a wireless communication circuit;
the solar power supply unit is used for converting solar energy into direct current and outputting the direct current to the power supply conversion unit, and the power supply conversion unit is used for performing voltage conversion processing on the direct current output by the solar power supply unit and supplying power to the infrared temperature measurement sensor, the processing circuit and the wireless communication circuit;
the number of the infrared temperature measurement sensors is 4, and the output end of each sensor is connected with the temperature measurement signal input end of the processing circuit;
the remote monitoring unit comprises a monitoring host, a touch display, a storage server and an alarm;
the monitoring host is in communication connection with the processing circuit through a wireless communication circuit, the monitoring host is in communication connection with the touch display, the monitoring host is in communication connection with the storage server, and the alarm is connected with the monitoring host. The monitoring host machine can be an existing PC, and the alarm adopts an existing audible and visual alarm; the wireless communication circuit adopts a GPRS communication circuit, such as an SIM900 or SIM800 module, of course, an electric wireless private network communication module or a 4G module and the like, and by the structure, all-weather temperature monitoring can be carried out on the strain clamp of the 110KV power transmission line, so that the continuity of the temperature data of the strain clamp is ensured, the monitored data can be uploaded in real time, and the monitored data can be displayed through a remote monitoring unit and an alarm can be given when the temperature exceeds the limit.
In this embodiment, the processing circuit includes a controller, a signal conversion circuit, and a clock circuit;
the signal output end of the clock circuit is connected with the clock signal input end of the controller, the controller is in communication connection with the monitoring host through a wireless communication circuit, the temperature signal input end of the controller is connected with the output end of the signal conversion circuit, the signal conversion circuit is provided with 4 input ends which are respectively connected with the output ends of 4 infrared temperature measurement sensors, wherein the controller is an STC12C5A60S2 single chip microcomputer, chip pins and peripheral circuits of the single chip microcomputer are in the prior art, and a manufacturer is accompanied with corresponding specification specifications when leaving a factory, so that drawings and principles of the single chip microcomputer are not described herein; pins 29, 42, 43 and 44 of the controller are used as signal output ends to be connected with the input end of the wireless communication module, and can be connected in the mode of the existing pin header socket; the clock circuit is a PCF8563 chip, and as shown in fig. 4, two signal terminals SCL and SDA of the clock circuit are connected to pins 3 and 6 of the controller, respectively.
In this embodiment, the signal conversion circuit includes a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C1, a capacitor C2, a capacitor C3, and a capacitor C4;
one end of a resistor R1 is connected with a pin 1 of a chip U1, the other end of a resistor R1 is grounded through a capacitor C1, a common connection point between a resistor R1 and a capacitor C1 serves as a first signal input end, a pin 2 of a chip U1 is grounded through a resistor R3, a pin 2 of a chip U1 is connected with a pin 1 through a resistor R2, a pin 2 of a chip U1 is connected with a pin 1 of a chip U1 through a capacitor C2, a pin 3 of a chip U1 is connected with one end of a resistor R5, the other end of a resistor R5 is grounded through a resistor R4, a common connection point between a resistor R4 and a resistor R5 serves as a second signal input end, a common connection point between a resistor R4 and a resistor R5 is grounded through a capacitor C4, and a pin 3 of a chip U1 is grounded after being connected in parallel through a capacitor C36;
one end of a resistor R12 is connected with a 7 pin of a chip U1, the other end of a resistor R1 is grounded through a capacitor C8, a common connection point between a resistor R12 and a capacitor C8 serves as a fourth signal input end, a6 pin of a chip U1 is grounded through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin of a chip U1 through a capacitor C7, a 5 pin of a chip U1 is connected with one end of a resistor R8, the other end of a resistor R8 is grounded through a resistor R9, a common connection point between a resistor R8 and a resistor R9 serves as a third signal input end, a common connection point between a resistor R8 and a resistor R9 is grounded through a capacitor C5, and a 5 pin of a chip U1 is grounded after being connected in parallel through a capacitor C36;
the pin 8, the pin 10, the pin 12 and the pin 14 of the chip U1 are used as output ends of the signal conversion circuit and are respectively connected with the pin 30, the pin 31, the pin 36 and the pin 37 of the controller;
wherein, the chip U1 is an LM2902 chip; the infrared temperature measuring sensor adopts the existing sensors, such as P228, LHI958 and the like, and the sensors output standard current of 4-20mA, so that the standard current signals are converted into voltage signals which can be identified by the controller through the circuit, thereby being beneficial to subsequent processing.
In this embodiment, the solar power supply unit includes a solar panel, a photovoltaic controller, and a storage battery;
the output end of the solar cell panel is connected with the input end of the photovoltaic controller, the charging/discharging end storage battery of the photovoltaic controller is connected, the power output end of the photovoltaic controller is connected with the input end of the voltage conversion unit, the control end of the photovoltaic controller is connected with the controller, the photovoltaic controller is used for processing the electric energy of the solar cell panel and inputting the electric energy into the storage battery, and the charging and discharging state of the storage battery is managed, and the photovoltaic controller is the prior art and is not repeated herein.
The voltage conversion unit comprises a first voltage conversion circuit and a second voltage conversion circuit;
the first voltage conversion circuit converts 12V voltage of the storage battery into 5V voltage and outputs the 5V voltage to power supply ends of the controller, the wireless communication circuit and the infrared temperature measurement sensor, the second voltage conversion circuit converts the 5V voltage output by the first voltage conversion circuit into 3.3V voltage and outputs the 3.3V voltage to the clock circuit, the first voltage conversion circuit adopts an XL4005F conversion circuit, and the second voltage conversion circuit adopts an AMS1117-3.3V voltage conversion circuit.
In this embodiment, the processing circuit further includes an ambient light detection circuit, where the ambient light detection circuit includes a resistor R15, a photo resistor R16, a resistor R18, a resistor R19, a comparator U3, a transistor Q1, a capacitor C11, an adjustable resistor R17, and an adjustable resistor R20;
one end of the photoresistor R16 is connected with the output end of the first voltage conversion circuit, the other end of the photoresistor R16 is grounded through an adjustable resistor R17, a common connection point between the photoresistor R16 and the adjustable resistor R17 is connected with the in-phase end of the comparator U3 through a resistor R18, the inverting end of the comparator U3 is grounded after being connected in series with an adjustable resistor R20 through a resistor R19, the output end of the comparator U3 is connected with the base of the triode Q3, the emitter of the triode Q3 is grounded, the collector of the triode Q3 is connected with the output end of the first voltage conversion circuit through a resistor R15, the common connection point between the triode Q3 and the resistor R15 is connected with a pin 23 of the controller, and the collector of the triode Q3 is grounded through a capacitor C11; when the ambient light intensity is less than the set intensity, it indicates that the current solar cell panel output power reduces, comparator U3 output high level this moment for triode Q1 switches on, the 23 pins of controller are set to low level, therefore, the frequency that the infrared temperature sensor of controller control carried out temperature sampling reduces, the life of battery is prolonged, when ambient light intensity is greater than the set intensity, comparator U3 output low level, triode Q1 ends, controller 23 pins are set to high level, the infrared temperature sensor of controller control carries out temperature acquisition according to the frequency of normal settlement.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a 110KV transmission line strain clamp temperature measurement system which characterized in that: comprises an on-site detection unit and a remote monitoring unit,
the on-site detection unit comprises a solar power supply unit, a power supply conversion unit, an infrared temperature measurement sensor, a processing circuit and a wireless communication circuit;
the solar power supply unit is used for converting solar energy into direct current and outputting the direct current to the power supply conversion unit, and the power supply conversion unit is used for performing voltage conversion processing on the direct current output by the solar power supply unit and supplying power to the infrared temperature measurement sensor, the processing circuit and the wireless communication circuit;
the number of the infrared temperature measurement sensors is 4, and the output end of each sensor is connected with the temperature measurement signal input end of the processing circuit;
the remote monitoring unit comprises a monitoring host, a touch display, a storage server and an alarm;
the monitoring host is in communication connection with the processing circuit through a wireless communication circuit, the monitoring host is in communication connection with the touch display, the monitoring host is in communication connection with the storage server, and the alarm is connected with the monitoring host.
2. The 110KV transmission line strain clamp temperature measurement system of claim 1, which is characterized in that: the processing circuit comprises a controller, a signal conversion circuit and a clock circuit;
the signal output end of the clock circuit is connected with the clock signal input end of the controller, the controller is in communication connection with the monitoring host through the wireless communication circuit, the temperature signal input end of the controller is connected with the output end of the signal conversion circuit, the signal conversion circuit is provided with 4 input ends which are respectively connected with the output ends of the 4 infrared temperature measurement sensors, and the controller is an STC12C5A60S2 single chip microcomputer.
3. The 110KV transmission line strain clamp temperature measurement system of claim 2, which is characterized in that: the signal conversion circuit comprises a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4;
one end of a resistor R1 is connected with a pin 1 of a chip U1, the other end of a resistor R1 is grounded through a capacitor C1, a common connection point between a resistor R1 and a capacitor C1 serves as a first signal input end, a pin 2 of a chip U1 is grounded through a resistor R3, a pin 2 of a chip U1 is connected with a pin 1 through a resistor R2, a pin 2 of a chip U1 is connected with a pin 1 of a chip U1 through a capacitor C2, a pin 3 of a chip U1 is connected with one end of a resistor R5, the other end of a resistor R5 is grounded through a resistor R4, a common connection point between a resistor R4 and a resistor R5 serves as a second signal input end, a common connection point between a resistor R4 and a resistor R5 is grounded through a capacitor C4, and a pin 3 of a chip U1 is grounded after being connected in parallel through a capacitor C36;
one end of a resistor R12 is connected with a 7 pin of a chip U1, the other end of a resistor R1 is grounded through a capacitor C8, a common connection point between a resistor R12 and a capacitor C8 serves as a fourth signal input end, a6 pin of a chip U1 is grounded through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin through a resistor R10, a6 pin of a chip U1 is connected with a 7 pin of a chip U1 through a capacitor C7, a 5 pin of a chip U1 is connected with one end of a resistor R8, the other end of a resistor R8 is grounded through a resistor R9, a common connection point between a resistor R8 and a resistor R9 serves as a third signal input end, a common connection point between a resistor R8 and a resistor R9 is grounded through a capacitor C5, and a 5 pin of a chip U1 is grounded after being connected in parallel through a capacitor C36;
the pin 8, the pin 10, the pin 12 and the pin 14 of the chip U1 are used as output ends of the signal conversion circuit and are respectively connected with the pin 30, the pin 31, the pin 36 and the pin 37 of the controller;
wherein, chip U1 is LM2902 chip.
4. The 110KV transmission line strain clamp temperature measurement system of claim 2, which is characterized in that: the solar power supply unit comprises a solar panel, a photovoltaic controller and a storage battery;
the output end of the solar cell panel is connected with the input end of the photovoltaic controller, the charging/discharging end storage battery of the photovoltaic controller is connected, the power output end of the photovoltaic controller is connected with the input end of the power conversion unit, and the control end of the photovoltaic controller is connected with the controller.
5. The 110KV transmission line strain clamp temperature measurement system of claim 4, wherein: the power conversion unit comprises a first voltage conversion circuit and a second voltage conversion circuit;
the first voltage conversion circuit converts the 12V voltage of the storage battery into 5V voltage and outputs the 5V voltage to the power supply ends of the controller, the wireless communication circuit and the infrared temperature measurement sensor, and the second voltage conversion circuit converts the 5V voltage output by the first voltage conversion circuit into 3.3V voltage and outputs the 3.3V voltage to the clock circuit.
6. The 110KV transmission line strain clamp temperature measurement system of claim 5, wherein: the processing circuit further comprises an ambient light detection circuit, wherein the ambient light detection circuit comprises a resistor R15, a photoresistor R16, a resistor R18, a resistor R19, a comparator U3, a triode Q1, a capacitor C11, an adjustable resistor R17 and an adjustable resistor R20;
one end of the photoresistor R16 is connected with the output end of the first voltage conversion circuit, the other end of the photoresistor R16 is grounded through an adjustable resistor R17, a common connection point between the photoresistor R16 and the adjustable resistor R17 is connected with the in-phase end of the comparator U3 through a resistor R18, the inverting end of the comparator U3 is grounded after being connected in series with an adjustable resistor R20 through a resistor R19, the output end of the comparator U3 is connected with the base of the triode Q3, the emitter of the triode Q3 is grounded, the collector of the triode Q3 is connected with the output end of the first voltage conversion circuit through a resistor R15, the common connection point between the triode Q3 and the resistor R15 is connected with a pin 23 of the controller, and the collector of the triode Q3 is grounded through a capacitor C11.
7. The 110KV transmission line strain clamp temperature measurement system of claim 1, which is characterized in that: the wireless communication circuit is a GPRS circuit.
8. The 110KV transmission line strain clamp temperature measurement system of claim 2, which is characterized in that: the clock circuit is a PCF8563 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625725.4U CN210922849U (en) | 2019-09-26 | 2019-09-26 | 110KV transmission line strain clamp temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921625725.4U CN210922849U (en) | 2019-09-26 | 2019-09-26 | 110KV transmission line strain clamp temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210922849U true CN210922849U (en) | 2020-07-03 |
Family
ID=71367987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921625725.4U Active CN210922849U (en) | 2019-09-26 | 2019-09-26 | 110KV transmission line strain clamp temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210922849U (en) |
-
2019
- 2019-09-26 CN CN201921625725.4U patent/CN210922849U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103986416B (en) | A kind of portable light photovoltaic assembly monitoring side | |
| CN101666812A (en) | Radio acceleration strain temperature data collecting system based on solar energy | |
| CN201764958U (en) | Laser multipoint displacement monitor | |
| CN105372569A (en) | Cable joint insulation state online monitoring apparatus and monitoring method | |
| CN209327454U (en) | A kind of intelligent monitor system based on transformation cabinet failure | |
| CN210922849U (en) | 110KV transmission line strain clamp temperature measurement system | |
| CN212843793U (en) | Multifunctional intelligent gas meter | |
| CN115347619B (en) | Intelligent monitoring terminal for distributed photovoltaic | |
| CN204027731U (en) | A kind of temperature rise on-Line Monitor Device for ring main unit inner cable joint | |
| CN212011475U (en) | Photovoltaic wiring plug with temperature display | |
| CN205193244U (en) | Battery observation circuit and system | |
| CN100589138C (en) | Hot fault warning system device | |
| CN203250192U (en) | Intelligent control system for high-temperature industrial television | |
| CN201926521U (en) | Portable intelligent temperature tester | |
| CN206388050U (en) | A kind of charging-discharging controller of solar street lamp automatic detection device | |
| CN208795407U (en) | A kind of pressure acquisition circuit of pipe pressure collector | |
| CN202188922U (en) | Multipath dual-mode detector | |
| CN217985002U (en) | Photovoltaic power plant system efficiency test equipment and system | |
| CN205748792U (en) | Merit figure on-line calibration device | |
| CN206573634U (en) | A kind of electronic equipment malfunction monitoring terminal installation | |
| CN202267538U (en) | Refrigeration type infrared detector with fault detection function | |
| CN109188313B (en) | Power supply detection device based on step-to-step voltage acquisition principle | |
| CN206541172U (en) | It is a kind of to monitor the monitor of home poultry raising temperature in real time | |
| CN204807716U (en) | Portable meteorological data acquisition facility and system | |
| CN214473891U (en) | On-spot installation timing device of current vortex sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |