CN212807381U - Passive wireless temperature measuring device of cubical switchboard based on RFID technique - Google Patents
Passive wireless temperature measuring device of cubical switchboard based on RFID technique Download PDFInfo
- Publication number
- CN212807381U CN212807381U CN202021318089.3U CN202021318089U CN212807381U CN 212807381 U CN212807381 U CN 212807381U CN 202021318089 U CN202021318089 U CN 202021318089U CN 212807381 U CN212807381 U CN 212807381U
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- Prior art keywords
- passive wireless
- temperature
- temperature sensor
- wireless temperature
- cubical switchboard
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000009529 body temperature measurement Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model particularly relates to a passive wireless temperature measuring device of cubical switchboard based on RFID technique, its characterized in that includes passive wireless temperature sensor, temperature card reader and temperature monitor, and passive wireless temperature sensor is equipped with a plurality ofly, installs on each contact in the cubical switchboard, and the temperature card reader is installed in the cubical switchboard, passive wireless temperature sensor and temperature card reader signal connection. The utility model has the advantages of stable and reliable operation, low maintenance cost, safe use and low risk.
Description
Technical Field
The utility model particularly relates to a passive wireless temperature measuring device of cubical switchboard based on RFID technique.
Background
In an electric power system, the resistance of the open contact of various devices may increase due to loosening, aging, arc impact and the like during long-term operation. This causes the temperature of the contact point to rise continuously, which brings about a hidden trouble to the safe operation of the power grid. If the accident is not found in time, equipment explosion and fire are easily caused, the safety of personnel is endangered, and serious disasters such as large-area power failure and the like are caused, so that serious economic loss is caused to the nation, the group and the individual, and the safety of national power grids is endangered. Therefore, the temperature of the key point of the power equipment is monitored on line in real time, potential safety hazards are found and eliminated in time, and the approval and the attention in the industry are obtained more and more.
The traditional temperature measurement systems such as infrared, optical fiber, active, CT, SAW and the like have numerous technical defects and economic defects in the aspects of safety, reliability, stability, economy, instantaneity and the like, and the temperature monitoring system is prevented from being applied to a large-scale system of a power system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a passive wireless temperature measuring device of cubical switchboard based on RFID technique, its contact point temperature measurement that will be applied to the cubical switchboard based on RFID electronic tags's passive wireless temperature sensor has very high reliability and security, can thoroughly keep apart, and the simple installation moreover.
The utility model discloses a realize through following technical scheme:
the switch cabinet passive wireless temperature measuring device based on the RFID technology is characterized by comprising a plurality of passive wireless temperature sensors, a plurality of temperature card readers and a plurality of temperature displays, wherein the passive wireless temperature sensors are installed on contacts in a switch cabinet, the temperature card readers are installed in the switch cabinet, and the passive wireless temperature sensors are in signal connection with the temperature card readers.
The utility model discloses a passive wireless temperature sensor is based on RFID electronic tags's passive wireless temperature sensor. The RFID electronic tag, the CPU and the like are integrated together, and the wireless charging is realized without the power supply of a battery; each passive wireless temperature sensor uploads the acquired temperature information to a temperature card reader through a wireless network with the center frequency of 915 Mhz; the temperature reader preferably, but not limited to, uploads the received temperature information to a remote server via RS485 protocol.
The utility model discloses a temperature card reader with be connected with temperature monitor. The temperature display displays the temperature value transmitted by each passive wireless temperature sensor in real time.
The utility model discloses the power of temperature card reader and temperature monitor all can be got inside the cubical switchboard.
The utility model has the advantages as follows:
1) the passive wireless temperature sensor based on the RFID electronic tag does not need to be driven by a battery, so that the maintenance cost and risk caused by battery replacement are reduced;
2) the passive wireless temperature sensor based on the RFID electronic tag does not need to be connected with a measured point or a related supporting structure in a wired mode, and the temperature sensor is not in electrical contact with a temperature card reader, so that high-voltage isolation is achieved, and safe operation of equipment is guaranteed;
3) the passive wireless temperature sensor based on the RFID electronic tag is small in size and adopts radio frequency transmission with the data between the temperature acquisition devices, so that the passive wireless temperature sensor is convenient and flexible to install and is not influenced by the structure and space of the switch cabinet.
4) The passive wireless temperature sensor based on the RFID electronic tag is debugged only once after being installed and is kept for years without being corrected. Meanwhile, environmental factors such as dust accumulation and the like cannot influence the temperature measurement of the passive wireless sensor;
5) the use of the passive wireless temperature sensor based on the RFID electronic tag reduces the installation and maintenance cost.
Drawings
FIG. 1 is a schematic block diagram of the structure of the present invention;
fig. 2 is a schematic block diagram of the structure of the passive wireless temperature sensor of the present invention.
As shown in the figure: 1. a passive wireless temperature sensor; a UHF antenna; 3. a temperature card reader; 4. and a temperature display.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1: a plurality of passive wireless temperature sensors 1 (the typical value is 6) are arranged on each contact in the switch cabinet, a temperature card reader 3 is arranged in the switch cabinet, the temperature card reader 3 is connected with a temperature display 4, and power supplies of the temperature card reader 3 and the temperature display 4 are taken from the switch cabinet.
When the temperature sensor is used, the 1 st to the nth passive wireless temperature sensors 1 respectively upload the acquired temperature information to the temperature card reader 3 in a wireless manner, and the temperature card reader 3 wirelessly (with a typical value of 915mhz) charges each passive wireless temperature sensor 1 in the air and communicates with each passive wireless temperature sensor 1. The temperature card reader 3 is connected with the temperature display 5, can locally display the acquired measurement data of the passive wireless temperature sensor 1, and can upload the measurement data to a main control room or a remote server through a wire (such as RS 485).
As shown in fig. 2: the utility model discloses a passive wireless temperature sensor 1 integrates digital logic module, data memory cell, clock oscillator, low-power consumption temperature sensor, modem, built-in antenna, wireless module of charging on 1-2 square millimeter's substrate. The passive wireless temperature sensor 1 is embedded in accessories such as a tuning fork sheet, a screw cap and a spring pressing sheet which are convenient for field installation. For the radio frequency signal from the temperature card reader 3, on one hand, the passive wireless temperature sensor 1 provides a working power supply for the UHF wireless charging module through a built-in antenna thereof, and on the other hand, the passive wireless temperature sensor and the temperature card reader 3 are in wireless communication in the air through a modem, and the measured temperature value is transmitted to the temperature card reader 3.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (1)
1. The utility model provides a cubical switchboard passive wireless temperature measuring device based on RFID technique, its characterized in that includes passive wireless temperature sensor based on RFID electronic tags, temperature card reader and temperature display, passive wireless temperature sensor is equipped with a plurality ofly, install on each contact in the cubical switchboard, the temperature card reader is installed in the cubical switchboard, passive wireless temperature sensor and temperature card reader signal connection, passive wireless temperature sensor includes digital logic module, data storage unit, clock oscillator, low-power consumption temperature sensor, modem, built-in antenna and wireless module of charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318089.3U CN212807381U (en) | 2020-07-07 | 2020-07-07 | Passive wireless temperature measuring device of cubical switchboard based on RFID technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318089.3U CN212807381U (en) | 2020-07-07 | 2020-07-07 | Passive wireless temperature measuring device of cubical switchboard based on RFID technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212807381U true CN212807381U (en) | 2021-03-26 |
Family
ID=75099829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021318089.3U Active CN212807381U (en) | 2020-07-07 | 2020-07-07 | Passive wireless temperature measuring device of cubical switchboard based on RFID technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212807381U (en) |
-
2020
- 2020-07-07 CN CN202021318089.3U patent/CN212807381U/en active Active
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