CN114544013A - Temperature detection system and method based on RFID - Google Patents
Temperature detection system and method based on RFID Download PDFInfo
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- CN114544013A CN114544013A CN202210079299.9A CN202210079299A CN114544013A CN 114544013 A CN114544013 A CN 114544013A CN 202210079299 A CN202210079299 A CN 202210079299A CN 114544013 A CN114544013 A CN 114544013A
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- monitoring
- module
- temperature
- rfid
- temperature detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a temperature detection system and a temperature detection method based on RFID, wherein the temperature detection system comprises the following steps: the sensing monitoring module is used for detecting the state information of the device to be detected; the data collection module is connected with the sensing monitoring module and is used for collecting monitoring data; the receiving module is wirelessly connected with the data collecting module and is used for receiving the monitoring result and judging the state of the equipment; the antenna can be used for transmitting radio frequency electric waves, the radio frequency electric waves activate the sensor to work and transmit a temperature measurement command, the whole process uses digital protocol communication and digital transmission, and CRC check codes are provided for error correction, so that the communication is stable and reliable; by comparing the phase current of the cable head, the load rate of the loop and the ambient temperature, the abnormal loop with the temperature rise can be quickly screened in advance, the passive power failure event caused by fault amplification is greatly reduced, and the monitoring on the temperature rise condition of the key part of the switch cabinet is accurate and timely; the wireless passive design, the sensor does not need the battery and also does not need induction electricity taking, and all-weather, real-time on-line monitoring cubical switchboard contact temperature change.
Description
Technical Field
The invention relates to the field of power equipment monitoring, in particular to a temperature detection system and method based on RFID.
Background
The cable connector is also called a cable head, and after the cable is laid, in order to form a continuous line, all the sections of the cable must be connected into a whole, and the connection points are called cable connectors. The cable joint is used for locking and fixing the incoming and outgoing lines, plays the waterproof, dustproof and shockproof role, and the sheath of the cable joint is an insulating layer, so that the leakage condition is avoided, and the safe and stable operation of a power line is ensured. The insulating layer of the cable head can age gradually along with the service time, so that the insulating property of the cable head is reduced, and the hidden troubles of electric leakage, thermal expansion and even explosion at the cable head are caused. Especially, the cable head buried in the cable trench has long service life and serious insulation aging, and one of the failure manifestations of the aging damaged cable head in the service is abnormal temperature rise.
The temperature to the cable head among the prior art detects mainly has following problem: the manual detection is difficult to carry out omnibearing detection on the cable head, or the manual detection needs the assistance of tools or other inspectors, so the operation is inconvenient; the cable trench is narrow, so that the cable trench is not suitable for two-person operation, and no special equipment or tool is provided, so that the detection work of the cable head is hindered. Therefore, the cable head with hidden danger is often discovered only when the cable has serious discharge, even thermal expansion or even explosion, and is not beneficial to the safe and stable operation of the power line.
For example, a chinese patent document discloses "a system and a method for detecting a temperature of a cable joint by wireless transmission", and its publication no: CN110836727A discloses a temperature measurement and communication circuit implemented by pouring a sensor in a cable accessory, but this technical solution has the problems of low safety and poor replaceability, and the alarm logic is complex, and it is not possible to implement wireless monitoring of the temperature of the cable head.
Disclosure of Invention
Therefore, the temperature detection system and method based on the RFID can solve the potential fault hazard possibly caused by long-term operation, long-term stress or installation and quality defects of the cable head, and can realize online temperature measurement of key points without wiring.
In order to achieve the above purpose, the invention provides the following technical scheme:
an RFID-based temperature detection system, comprising: the sensing monitoring module is used for detecting the state information of the device to be detected; the data collection module is connected with the sensing monitoring module and is used for collecting monitoring data; and the receiving module is wirelessly connected with the data collecting module and is used for receiving the monitoring result and judging the state of the equipment. The data collection module sends a working signal to the sensing monitoring module, the sensing monitoring module carries out temperature monitoring work after receiving the working signal of the data collection module, the sensing monitoring module transmits detected temperature information back to the data collection module, and the data collection module transmits the temperature information to the receiver through wireless connection, so that the on-line monitoring of the temperature of the cable head is completed.
Preferably, the sensing and monitoring module comprises a sensor for receiving the signal and initiating the detection. The sensing monitoring module comprises a radio frequency chip connected with a sensor and used for receiving a working signal sent by the data collection module, a temperature measurement circuit is connected behind the radio frequency chip and can detect the current and the load rate in a circuit, the sensor comprises a nut temperature measurement sensor, and the temperature of the cable head can be monitored on line without an additional device.
Preferably, the sensor is located on the outer end face of the nut, and the nut is in threaded fit with the cable head at the cable head connection position. The temperature information of the cable head at the position of the nut can be monitored on line when the working information is received, the sensor damage caused by long-time pressure can be avoided, meanwhile, an additional structure and a circuit are not needed, and the safety of the detection position is ensured.
Preferably, the data collection module comprises a temperature collector for collecting temperature data online. The temperature collector comprises a radio frequency transmitter, can send radio frequency signals to the sensing monitoring module and can receive monitoring data information from the sensing monitoring module, the data receiving module is in wireless connection with the receiving module, the received monitoring data information can be processed and sent to the receiving module, and temperature monitoring of the cable equipment is completed.
Preferably, the receiving module includes a receiver, and the receiver includes a signal receiving end and a reading end, and is used for receiving the signal of the temperature collector and acquiring the monitoring data. The signal receiving end is connected with the data collection module in a wireless mode, the signal receiving end is connected with the reading end, the signal receiving end is used for receiving the data information sent by the data collection module, and the reading end is used for decrypting the obtained data information.
The temperature detection method based on the RFID comprises the following steps:
s1, sending a monitoring signal; the data collection module sends a detection signal to the sensing monitoring module, the sensing monitoring module carries out temperature monitoring work after receiving a working signal of the data collection module, the sensing monitoring module is not powered when not working, and is powered and carries out monitoring work after receiving the working signal;
s2, detecting the state information and uploading the state information to the data collection module; the sensing monitoring module records the monitored data information on the radio frequency chip after acquiring the monitoring information, and the data receiving module acquires the corresponding monitoring data information according to the information of the radio frequency signal;
and S3, acquiring the monitoring data from the data collection module, and acquiring the monitoring data information of the data collection module by the receiver.
Preferably, the monitoring signal in S1 includes a radio frequency signal, the radio frequency signal includes a working signal and a temperature measurement command, the working command enables the sensing monitoring module to start working by powering on, and the temperature measurement command enables the sensing monitoring module to start measuring temperature. The system can be in an online state during monitoring, avoids unnecessary monitoring activities, reduces energy consumption and does not need an external power supply.
The embodiment of the invention has the following advantages:
(1) the antenna can be used for transmitting radio frequency electric waves, the radio frequency electric waves activate the sensor to work and transmit a temperature measurement command, the whole process uses digital protocol communication and digital transmission, and CRC check codes are provided for error correction, so that the communication is stable and reliable; (2) by comparing the phase current of the cable head, the load rate of the loop and the ambient temperature, the abnormal loop with the temperature rise can be quickly screened in advance, the passive power failure event caused by fault amplification is greatly reduced, and the monitoring on the temperature rise condition of the key part of the switch cabinet is accurate and timely; (3) the wireless passive design, the sensor does not need the battery and also does not need induction electricity taking, and all-weather, real-time on-line monitoring cubical switchboard contact temperature change.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the invention, and do not limit the limit conditions of the invention, so that the invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical contents disclosed in the invention without affecting the efficacy and the achievable purpose of the invention.
FIG. 1 is a system block diagram of the present invention.
Fig. 2 is a schematic diagram of the sensor location on the nut of the present invention.
In the figure:
1-a sensing monitoring module; 2-a data collection module; 3-a receiving module; 4-a sensor; 5-nut.
Detailed Description
While embodiments of the present invention will be described with reference to particular embodiments, those skilled in the art will readily appreciate that the present invention has additional advantages and benefits that may be realized from the teachings herein, and that the embodiments described are only a few, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a preferred embodiment, as shown in FIG. 1, the present invention discloses an RFID-based temperature sensing system, comprising: the sensing monitoring module is used for detecting the state information of the device to be detected; the data collection module is connected with the sensing monitoring module and is used for collecting monitoring data; and the receiving module is wirelessly connected with the data collecting module and is used for receiving the monitoring result and judging the state of the equipment. The data collection module sends a working signal to the sensing monitoring module, the sensing monitoring module carries out temperature monitoring work after receiving the working signal of the data collection module, the sensing monitoring module transmits detected temperature information back to the data collection module, and the data collection module transmits the temperature information to the receiver through wireless connection, so that the on-line monitoring of the temperature of the cable head is completed.
The sensing and monitoring module comprises a sensor for receiving a signal and starting to detect. The sensing monitoring module comprises a radio frequency chip connected with a sensor and used for receiving a working signal sent by the data collection module, a temperature measurement circuit is connected behind the radio frequency chip and can detect the current and the load rate in a circuit, the sensor comprises a nut temperature measurement sensor, and the temperature of the cable head can be monitored on line without an additional device.
The sensor is located the outer terminal surface of nut, and the nut is located cable head junction screw-thread fit. The temperature information of the cable head at the position of the nut can be monitored on line when the working information is received, the sensor damage caused by long-time pressure can be avoided, meanwhile, an additional structure and a circuit are not needed, and the safety of the detection position is ensured.
The data collection module includes a temperature collector for collecting temperature data online. The temperature collector comprises a radio frequency transmitter, can send radio frequency signals to the sensing monitoring module and can receive monitoring data information from the sensing monitoring module, the data receiving module is in wireless connection with the receiving module, the received monitoring data information can be processed and sent to the receiving module, and temperature monitoring of the cable equipment is completed.
The receiving module comprises a receiver, and the receiver comprises a signal receiving end and a reading end and is used for receiving the signal of the temperature collector and acquiring monitoring data. The signal receiving end is connected with the data collection module in a wireless mode, the signal receiving end is connected with the reading end, the signal receiving end is used for receiving the data information sent by the data collection module, and the reading end is used for decrypting the obtained data information.
The temperature detection method based on the RFID comprises the following steps:
s1, sending a monitoring signal; the data collection module sends a detection signal to the sensing monitoring module, the sensing monitoring module carries out temperature monitoring work after receiving a working signal of the data collection module, the sensing monitoring module is not powered when not working, and is powered and carries out monitoring work after receiving the working signal;
s2, detecting the state information and uploading the state information to the data collection module; the sensing monitoring module records the monitored data information on the radio frequency chip after acquiring the monitoring information, and the data receiving module acquires the corresponding monitoring data information according to the information of the radio frequency signal;
and S3, acquiring the monitoring data from the data collection module, and acquiring the monitoring data information of the data collection module by the receiver.
The monitoring signals in the S1 comprise radio frequency signals, the radio frequency signals comprise working signals and temperature measuring commands, the working commands can enable the sensing monitoring module to be electrified to start working, and the temperature measuring commands can enable the sensing monitoring module to start measuring temperature. The system can be in an on-line state during monitoring, the monitoring activity when not needed is avoided, the energy consumption is reduced, and an external power supply is not used.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. An RFID-based temperature detection system, comprising: the sensing monitoring module is used for detecting the state information of the device to be detected; the data collection module is connected with the sensing monitoring module and is used for collecting monitoring data; and the receiving module is wirelessly connected with the data collecting module and is used for receiving the monitoring result and judging the state of the equipment.
2. The RFID-based temperature detection system of claim 1, wherein the sensing and monitoring module includes a sensor for receiving a signal and initiating the detection.
3. The RFID-based temperature detection system of claim 2, wherein the sensor is located on an outer end face of a nut that is threadably engaged at the cable head connection.
4. The RFID-based temperature detection system of claim 1 or 2, wherein the data collection module comprises a temperature collector for collecting temperature data online.
5. The RFID-based temperature detection system of claim 3, wherein the receiving module comprises a receiver, and the receiver comprises a signal transmitting end and a reading end for receiving the signal of the temperature collector and acquiring the monitoring data.
6. RFID-based temperature detection method, suitable for use in an RFID-based temperature detection system according to claims 1 to 5, characterized in that it comprises the following steps:
s1, sending a monitoring signal;
s2, detecting the state information and uploading the state information to the data collection module;
and S3, obtaining the monitoring data from the data collection module.
7. The RFID-based temperature detection method of claim 6, wherein the monitoring signal in S1 includes a radio frequency signal, the radio frequency signal includes an operation signal and a temperature measurement command, the operation command enables the sensing and monitoring module to start operating by powering on, and the temperature measurement command enables the sensing and monitoring module to start measuring temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079299.9A CN114544013A (en) | 2022-01-24 | 2022-01-24 | Temperature detection system and method based on RFID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079299.9A CN114544013A (en) | 2022-01-24 | 2022-01-24 | Temperature detection system and method based on RFID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114544013A true CN114544013A (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210079299.9A Pending CN114544013A (en) | 2022-01-24 | 2022-01-24 | Temperature detection system and method based on RFID |
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| Country | Link |
|---|---|
| CN (1) | CN114544013A (en) |
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- 2022-01-24 CN CN202210079299.9A patent/CN114544013A/en active Pending
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