CN212302510U - Bridge information acquisition and monitoring system - Google Patents
Bridge information acquisition and monitoring system Download PDFInfo
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- CN212302510U CN212302510U CN202021009182.6U CN202021009182U CN212302510U CN 212302510 U CN212302510 U CN 212302510U CN 202021009182 U CN202021009182 U CN 202021009182U CN 212302510 U CN212302510 U CN 212302510U
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- reader
- electronic tag
- radio frequency
- writer
- module
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Abstract
The utility model belongs to the field of bridge monitoring, in particular to a bridge information acquisition and monitoring system, which comprises an upper computer, a reader-writer and a plurality of electronic tags, wherein the electronic tags measure the humiture, the pressure, the flow and the voltage physical quantity; when the reader-writer is in communication connection with the plurality of electronic tags, the reader-writer selects the corresponding electronic tag to perform data transmission according to the ID number of each electronic tag; and the upper computer is in communication connection with the reader-writer and receives data of the electronic tag. Parameters such as humiture, pressure, flow, voltage can all-weather and the wireless collection of whole day, need not direct contact measuring equipment just can obtain measured data to can send experimental data to the host computer.
Description
Technical Field
The utility model belongs to belong to bridge monitoring field especially relates to a bridge information acquisition and monitoring system.
Background
The traditional data acquisition method has great defects, the manual data acquisition not only wastes time and labor, but also has high measurement cost and reduces the working efficiency. The RFID (radio Frequency identification) bridge information acquisition and monitoring system can intuitively acquire experimental data and analysis results and bring the experimental data back for detailed analysis. The RFID bridge information acquisition and monitoring system achieving unmanned monitoring has great significance, real-time performance of data acquisition and processing is guaranteed, working efficiency of people is improved, blind investment of resources is reduced, and maximization of economic benefits is achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a bridge information acquisition and monitoring system is provided, circuit structure is simple, and is with low costs, realizes unmanned control.
The utility model discloses a thus realized, a bridge information acquisition and monitoring system, including host computer, read write line and a plurality of electronic tags, electronic tags measures humiture, pressure, flow and voltage physical quantity; when the reader-writer is in communication connection with the plurality of electronic tags, the reader-writer selects the corresponding electronic tag to perform data transmission according to the ID number of each electronic tag; and the upper computer is in communication connection with the reader-writer and receives data of the electronic tag.
Furthermore, the upper computer is connected with the reader-writer through an Ethernet port, an RS-232 or a USB communication interface.
Further, the reader-writer comprises a microcontroller, a first radio frequency module and a first antenna, wherein a data interface of the first radio frequency module is connected with the first antenna, the first radio frequency module is connected with a communication interface of the microcontroller, and the microcontroller is further connected with a read-write module for reading and writing data of the electronic tag.
Furthermore, the radio frequency module of the reader generates radio frequency emission energy to provide energy for the work of the electronic tag.
Further, the electronic tag comprises a second antenna, a second radio frequency module, a second rectification circuit, a control module, a power circuit and a plurality of sensors;
the second antenna receives a radio frequency signal transmitted by the reader-writer;
the rectification circuit is arranged between the power supply circuit and the second radio frequency module, modulates the baseband signal and demodulates the radio frequency signal;
the second radio frequency module is connected with the control module and used for coding the transmitted baseband signal during transmission; decoding the received baseband signal upon reception;
the input end of the control module is connected with the sensor;
and the power supply circuit is used for converting the radio frequency energy received by the antenna into direct current and stabilizing the voltage for the electronic tag to work.
Further, the sensor includes temperature and humidity sensor, voltage sensor, pressure sensor and flow sensor.
Further, the microcontroller is selected from a chip of model NRF24LE 1;
further, the control module is selected from a chip of model NRF24LE 1.
Compared with the prior art, the utility model, beneficial effect lies in: this novel can be all-weather and wireless collection humiture, pressure, flow, voltage isoparametric all the day, need not direct contact measuring equipment and just can obtain measured data to can send experimental data to the host computer. The whole bridge information acquisition and monitoring system comprises an upper computer, a reader-writer and an electronic tag, wherein a sensor is integrated in the active electronic tag, and is used for measuring the physical quantities of temperature, humidity, pressure, flow and voltage. The wireless data transmission of the bridge information acquisition and monitoring system is mainly completed by a reader-writer, an antenna and an electronic tag. When the reader-writer communicates with a plurality of electronic tags, the reader-writer can select the corresponding electronic tags to carry out data transmission according to the unique identification code, namely the ID number, of each electronic tag. When the electronic tag is in the radiation range of the reader-writer, the reader-writer receives data of temperature, humidity, pressure, flow, voltage and the like collected by the electronic tag, and the data stored in the reader-writer can be transmitted to an upper computer through communication interfaces such as an Ethernet port, RS-232 and USB.
The whole circuit is simple in structure and low in cost, ensures the real-time performance of data acquisition and processing, and improves the working efficiency.
Drawings
Fig. 1 is a block diagram of a circuit structure of an apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a reader/writer according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an electronic tag according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 in combination with fig. 2 and 3, a bridge information acquisition and monitoring system includes an upper computer, a reader/writer, and a plurality of electronic tags, where the electronic tags measure temperature, humidity, pressure, flow, and voltage physical quantities; when the reader-writer is in communication connection with the plurality of electronic tags, the reader-writer selects the corresponding electronic tag to perform data transmission according to the ID number of each electronic tag; and the upper computer is in communication connection with the reader-writer and receives data of the electronic tag.
The upper computer is connected with the reader-writer through an Ethernet port and an RS-232 or USB communication interface.
The reader-writer comprises a microcontroller, a first radio frequency module and a first antenna, wherein a data interface of the first radio frequency module is connected with the first antenna, the first radio frequency module is connected with a communication interface of the microcontroller, and the microcontroller is also connected with a read-write module for reading and writing data of the electronic tag. The radio frequency module of the reader generates radio frequency emission energy to provide energy for the work of the electronic tag. Referring to fig. 2, a microcontroller of the reader-writer adopts a chip of model NRF24LE1, and the read-write module U1 is connected with the microcontroller.
The electronic tag comprises a second antenna, a second radio frequency module, a second rectifying circuit, a control module, a power supply circuit and a plurality of sensors;
the second antenna receives a radio frequency signal transmitted by the reader-writer;
the rectification circuit is arranged between the power supply circuit and the second radio frequency module, modulates the baseband signal and demodulates the radio frequency signal;
the second radio frequency module is connected with the control module and used for coding the transmitted baseband signal during transmission; decoding the received baseband signal upon reception;
the input end of the control module is connected with the sensor;
and the power supply circuit is used for converting the radio frequency energy received by the antenna into direct current and stabilizing the voltage for the electronic tag to work. Referring to fig. 3, the control module uses a chip model NRF24LE 1.
The sensor comprises a temperature and humidity sensor, a voltage sensor, a pressure sensor and a flow sensor.
The reader-writer is used for broadcasting radio frequency signals outwards, transmitting data energy for the electronic tag, communicating with the electronic tag, reading data stored in the tag, writing new information into the electronic tag and sending the received data to an upper computer for further processing. The radio frequency emission energy is generated to provide energy for the work of the electronic tag, a radio frequency carrier signal is generated, a baseband signal is modulated onto the carrier signal and is transmitted to the electronic tag after power amplification, the signal transmitted by the electronic tag is received and demodulated, the voltage of the provided power supply is stabilized, and the work accuracy of the reader-writer is ensured.
The electronic tag contains a chip and an antenna, can store data information and can communicate with a reader-writer
The electronic tag mainly comprises a second antenna, a second radio frequency module, a rectifying circuit, a control module and a power supply circuit.
The electronic tag of the system is in a standby state at first, the radio frequency module and the control are in a complete power-down state, and the power consumption of the whole electronic tag is only micro leakage current. When the electronic tag enters the reader-writer wake-up range, a wake-up signal receiving antenna on the electronic tag obtains radio frequency energy, and the radio frequency signal is converted into direct current after passing through an impedance matching circuit, a rectifying circuit and a protection circuit.
If the voltage is too low, the power switch cannot be turned on, and the electronic tag maintains a power-down state. And only when the electronic tag is close enough to the reader-writer and the direct current level output by the rectifying circuit is high enough, the power supply circuit can use the direct current level as a starting signal to turn on a power supply switch, start to acquire temperature, humidity, pressure, voltage and flow information and send the acquired data to the reader-writer. After the communication is finished, the power supply circuit disconnects the power supply again, and the radio frequency module enters a power-down state. And the electronic tag enters a standby state and waits for the arrival of the next wake-up signal.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A bridge information acquisition and monitoring system is characterized by comprising an upper computer, a reader-writer and a plurality of electronic tags, wherein the electronic tags measure temperature, humidity, pressure, flow and voltage physical quantities; when the reader-writer is in communication connection with the plurality of electronic tags, the reader-writer selects the corresponding electronic tag to perform data transmission according to the ID number of each electronic tag; and the upper computer is in communication connection with the reader-writer and receives data of the electronic tag.
2. The system of claim 1, wherein the host computer and the reader are connected through an ethernet port, RS-232, or USB communication interface.
3. The system of claim 1, wherein the reader comprises a microcontroller, a first rf module, and a first antenna, the first rf module is connected to the first antenna through a data interface, the first rf module is connected to the microcontroller through a communication interface, and the microcontroller is further connected to a read/write module for reading and writing data of the electronic tag.
4. The system of claim 3, wherein the radio frequency module of the reader generates radio frequency emission energy to provide energy for the operation of the electronic tag.
5. The system of claim 1, wherein the electronic tag comprises a second antenna, a second radio frequency module, a second rectification circuit, a control module, a power circuit, and a plurality of sensors;
the second antenna receives a radio frequency signal transmitted by the reader-writer;
the rectification circuit is arranged between the power supply circuit and the second radio frequency module, modulates the baseband signal and demodulates the radio frequency signal;
the second radio frequency module is connected with the control module and used for coding the transmitted baseband signal during transmission; decoding the received baseband signal upon reception;
the input end of the control module is connected with the sensor;
and the power supply circuit is used for converting the radio frequency energy received by the antenna into direct current and stabilizing the voltage for the electronic tag to work.
6. The system of claim 5, wherein the sensors comprise a temperature and humidity sensor, a voltage sensor, a pressure sensor, and a flow sensor.
7. The system of claim 3, wherein the microcontroller is selected from a chip model NRF24LE 1.
8. The system of claim 5, wherein the control module is selected from a chip of model NRF24LE 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009182.6U CN212302510U (en) | 2020-06-03 | 2020-06-03 | Bridge information acquisition and monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021009182.6U CN212302510U (en) | 2020-06-03 | 2020-06-03 | Bridge information acquisition and monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212302510U true CN212302510U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021009182.6U Expired - Fee Related CN212302510U (en) | 2020-06-03 | 2020-06-03 | Bridge information acquisition and monitoring system |
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| Country | Link |
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| CN (1) | CN212302510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113283259A (en) * | 2021-07-19 | 2021-08-20 | 江西博星数码科技有限公司 | RFID-based multi-tag radio frequency identification system and method |
-
2020
- 2020-06-03 CN CN202021009182.6U patent/CN212302510U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113283259A (en) * | 2021-07-19 | 2021-08-20 | 江西博星数码科技有限公司 | RFID-based multi-tag radio frequency identification system and method |
| CN113283259B (en) * | 2021-07-19 | 2021-10-08 | 江西博星数码科技有限公司 | RFID-based multi-tag radio frequency identification system and method |
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| GR01 | Patent grant | ||
| 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: 20210105 |