CN210578580U - Wireless signal testing device - Google Patents
Wireless signal testing device Download PDFInfo
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- CN210578580U CN210578580U CN201922202719.4U CN201922202719U CN210578580U CN 210578580 U CN210578580 U CN 210578580U CN 201922202719 U CN201922202719 U CN 201922202719U CN 210578580 U CN210578580 U CN 210578580U
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Abstract
The utility model discloses a radio signal testing arrangement, include: the device comprises a communication module, a signal sending module, a signal acquisition module, a processor, a storage circuit, a display screen 3 and a power supply; the communication module is used for establishing wireless communication connection with a metering device to be measured; the signal sending module is used for sending standard signal frequency to the metering device to be measured; the signal acquisition module is used for acquiring frequency information of a return signal of the metering device to be measured; the processor is respectively connected with the signal acquisition module, the storage circuit and the display screen 3. The embodiment of the utility model provides a through reading oil field well site measuring instrument zigBee signal data, carry out signal error to it and judge to diagnose the size of this measuring instrument signal transmission error, reduce maintenance, the maintenance cost of oil field well site measuring instrument, improve data transmission quality and accuracy.
Description
Technical Field
The utility model relates to a radio signal tests technical field, especially relates to a radio signal testing arrangement.
Background
With the continuous promotion and improvement of the construction of the digital oil field, a large number of wireless transmission metering instruments such as a load, an angular displacement, a temperature transmitter, a pressure transmitter and the like are applied to the wellhead of the oil field, and the data transmission mode applied by the instruments is mainly the ZigBee wireless transmission technology. However, due to complex working conditions of the oil field well site, the ZigBee signal is affected by a magnetic field and obstacles in the bidirectional periodic transmission process, and the oil well metering data has the situations of packet loss, large delay and incapability of judging the strength of signal transmission in the transmission process. Meanwhile, as time goes on and the instrument battery ages, the transmission of the metering data can deviate from the real data, and the safety production and well condition judgment of the oil field can be influenced.
Therefore, how to judge the data transmission condition of the instrument in time and evaluate the use performance of the instrument is very important, so that a basis is provided for the timely adjustment and replacement of the instrument.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the utility model provides a radio signal testing arrangement can detection instrument radio signal transmission's accuracy to the realization is to the aassessment of instrument performance.
In order to achieve the above object, an embodiment of the present invention provides a wireless signal testing apparatus, including: the device comprises a communication module, a signal sending module, a signal acquisition module, a processor, a storage circuit, a display screen 3 and a power supply;
the communication module is used for establishing wireless communication connection with a metering device to be measured;
the signal sending module is used for sending standard signal frequency to the metering device to be measured;
the signal acquisition module is used for acquiring frequency information of a return signal of the metering device to be measured;
the processor is respectively connected with the signal acquisition module, the storage circuit and the display screen 3, and is used for receiving the frequency information of the return signal acquired by the signal acquisition module, analyzing the frequency information of the return signal and the frequency of the standard signal, displaying the analysis result through the display screen, and storing the analysis result through the storage circuit; the power supply is used for supplying power to the signal sending module, the signal acquisition module, the processor, the storage circuit and the display screen.
Optionally, the communication module further includes a telescopic antenna 1.
Optionally, the wireless signal testing device further includes a serial port interface 6 for simulating the remote measurement and control terminal device.
Optionally, the wireless signal testing device further includes a key input module.
Optionally, the key input module includes a power on/off key 2, a reset key, a test key, a direction key 5, and a digital function key 4, and the key input module is used for selecting a power on/off function, a test function, and a data storage, query, and delete function.
Optionally, the processor further includes: a vector signal generation module for testing the signal strength of the return signal.
Optionally, the processor further includes: and the signal analysis and comparison module is used for analyzing the frequency information of the return signal.
Optionally, the display screen 3 is a liquid crystal display screen.
Optionally, the vector signal generating module includes: a first vector signal generator 301 and a second vector signal generator 302.
The embodiment of the utility model provides a wireless signal test method and device utilizes signal two-way feedback and precision frequency measurement technical principle such as, combines vector signal generator output signal EVM (error vector range), realizes the error test of oil well zigBee signal. The data transmission of the oil well front-end metering instrument is realized based on an oil field standard communication protocol, and the accuracy of ZigBee signal error calculation, strength test, temperature, pressure, liquid level and other front-end metering instrument communication data transmission is researched. The embodiment of the utility model provides a through reading oil field well site measuring instrument zigBee signal data, carry out signal error to it and judge to diagnose the size of this measuring instrument signal transmission error, reduce maintenance, the maintenance cost of oil field well site measuring instrument, improve data transmission quality and accuracy.
The embodiment of the utility model provides a wireless signal test method and device are applicable to oil field well site zigBee signal error test, can communicate with the wireless metering device of oil field well site, can be at its zigBee data transmission accuracy of field test and signal strength. The utility model discloses test result can realize providing the reference for the technical staff to can realize that corresponding instruction personnel calibrate, change relevant problem metering device, guarantee data transmission's accuracy. The embodiment of the utility model provides a device has built-in rechargeable battery, need not external power supply in the field application after being full of the electricity, has simple structure, convenient to use's characteristics.
Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter. In the drawings:
fig. 1 is a flowchart of a wireless signal testing method according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a wireless signal testing device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vector signal generating module according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a signal analysis comparing module according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The first embodiment is as follows:
referring to fig. 1, a flowchart of a wireless signal testing method according to a first embodiment of the present invention is shown. The method comprises the following steps:
103, acquiring frequency information of a return signal of the metering device to be measured;
and 104, acquiring a wireless signal transmission error according to the standard signal frequency and the frequency information returned by the metering device to be measured.
In an implementation manner of this embodiment, the step 104 of obtaining a wireless signal transmission error according to the frequency information of the standard signal and the frequency information of the return signal of the measurement instrument to be measured includes:
respectively counting the frequency of the standard signal and the frequency information of the return signal of the measuring instrument to be measured, and obtaining the count value of the frequency information of the return signal to be NMeasuringThe frequency count value of the standard signal is NSign boardFrequency of the reference signal fSign boardAnd then the frequency of the return signal of the measuring instrument to be measured is as follows: f. ofMeasuring＝fSign boardNMeasuring/NSign board. Substituting the frequency value of the standard signal and the frequency value of the return signal into a formula: let σ be (f)Measuring-fSign board)/fSign boardAnd obtaining a signal error of the measuring instrument to be measured, wherein sigma represents the signal error of the measuring instrument to be measured.
In another embodiment of the present invention, the step 103 further includes: and acquiring signal intensity information of a return signal of the metering device to be measured. In this embodiment, the signal strength information of the return signal of the metering device to be measured is acquired, so that the service condition of the metering device can be evaluated according to the signal strength information of the return signal.
In another embodiment of the present invention, the step 101 further comprises: acquiring equipment information of a REMOTE TERMINAL UNIT (RTU), and simulating the REMOTE TERMINAL equipment according to the equipment information, thereby realizing interactive two-way communication with a metering instrument to be measured on site.
Example two:
referring to fig. 2, a schematic structural diagram of a wireless signal testing device according to a second embodiment of the present invention is shown. The wireless signal testing device comprises: the device comprises a communication module, a signal sending module, a signal acquisition module, a processor, a storage circuit, a display screen 3 and a power supply;
the communication module is used for establishing wireless communication connection with a metering device to be measured;
the signal sending module is used for sending standard signal frequency to the metering device to be measured;
the signal acquisition module is used for acquiring frequency information of a return signal of the metering device to be measured;
the processor is respectively connected with the signal acquisition module, the storage circuit and the display screen 3, and is used for receiving the frequency information of the return signal acquired by the signal acquisition module, analyzing the frequency information of the return signal and the frequency of the standard signal, displaying the analysis result through the display screen, and storing the analysis result through the storage circuit; the power supply is used for supplying power to the signal sending module, the signal acquisition module, the processor, the storage circuit and the display screen.
In an implementation manner of this embodiment, the communication module further includes a telescopic antenna 1. The wireless signal testing device further comprises a serial port interface 6 for simulating the remote measurement and control terminal equipment. The power supply comprises a battery, and the battery supplies power to the communication module, the signal sending module, the signal acquisition module, the processor, the storage circuit and the display screen 3. The display 3 may be a liquid crystal display.
In an implementation manner of this embodiment, the wireless signal testing apparatus further includes a key input module, where the key input module includes a power on/off key 2, a reset key, a test key, a direction key 5, and a digital function key 4, and the key input module is used to select a power on/off function, a test function, and a data storage, query, and delete function.
In an implementation manner of this embodiment, the processor further includes: the device comprises a vector signal generating module and/or a signal analyzing and comparing module, wherein the vector signal generating module is used for testing the signal intensity of a return signal, and the signal analyzing and comparing module is used for analyzing the frequency information of the return signal.
Example three:
referring to fig. 3, a schematic diagram of a vector signal generating module according to a third embodiment of the present invention is shown.
The vector signal generation module includes: the first vector signal generator 301, the second vector signal generator 302, and the return signal 303 are processed by the first vector signal generator 301, and then enter the signal analyzing and comparing module 305. After being processed by the second vector signal generator 302, the standard signal 304 enters a signal analysis and comparison module 305. The two signals are compared and analyzed in the signal analysis and comparison module 305.
Example four:
fig. 4 is a schematic structural diagram of a signal analysis comparing module according to a fourth embodiment of the present invention. The measured meter signal 303 and the standard signal 304 enter the signal analysis and comparison module in fig. 4 at the same time. At this time, the counter does not start to work, when the rising edge of the measured instrument signal 303 comes, the counter synchronously works, then a stop signal is sent, the counter does not stop working immediately, and when the rising edge of the measured instrument signal 303 comes, the counter stops working. The output count value of the measured instrument signal 303 is NMeasuringThe output count value of the standard signal 304 is NSign boardThe frequency of the standard signal 304 is fSign boardThen, the frequency of the measured meter signal 303 is: f. ofMeasuring＝fSign boardNMeasuring/NSign board. The frequency value of the standard signal 304 and the frequency value of the measured signal 303 are expressed by the following formula: σ ═ fMeasuring-fSign board)/fSign boardThe comparison is carried out in the signal analysis and comparison module of fig. 4, and a signal error is obtained.
Example five:
the technical solution of the present invention is exemplified by the following examples in specific applications. The utility model discloses can be applied to oil field well site zigBee signal error test, the utility model discloses the wireless signal test method that the fifth embodiment provided, including following step:
step 501: obtaining information of a well site RTU, and simulating the well site RTU according to the information, wherein the method specifically comprises the following steps: connecting an oil field well site RTU serial port with a ZigBee test system instrument serial port interface 6 by using a serial port line, pressing a power-on and power-off button 2 to start an instrument, automatically reading a well site RTU network number, an IP address and a port number by a system, simulating the well site RTU network number, the IP address and the port number, mapping the system cost to the well site RTU, and carrying out interactive bidirectional communication with an on-site metering instrument by adjusting a telescopic antenna 1.
The RTU is a remote measurement and control terminal, converts the measured state or signal into a data format which can be transmitted on a communication medium, and also converts data transmitted from a central computer into a command to realize the function control of the equipment. It is a separate data acquisition and control unit. The remote control system is used for controlling field equipment at a remote end, obtaining equipment data and transmitting the data to a computer of a dispatching center.
Step 502: utilize zigBee's two-way signal feedback channel, send the start instruction to the metering device that awaits measuring of selecting, specifically include: on the LCD screen 3 of the wireless signal testing device, the digital function key 4 and the direction key 5 are used for inputting the testing period time and setting the standard frequency fSign board. And selecting a certain metering instrument in the well site, and sending a starting instruction to the selected metering instrument by using a two-way signal feedback channel of the ZigBee. Meanwhile, real-time data transmitted by the well site instrument can be checked.
Step 503: after a starting signal instruction is sent out, a measured signal sent by the measuring instrument to be measured returns to the ZigBee test system, the ZigBee signal emission intensity of the measuring instrument is tested through the vector generation module in the figure 3, and the numerical value is displayed on the liquid crystal display screen 3 in the figure 2. The method specifically comprises the following steps: and setting the EVM of the ZigBee signal to be adjustable by using a vector signal generator, and judging the ZigBee signal intensity of the metering instrument.
Step 504: the measured meter signal 303 and the standard signal 304 enter the signal analysis and comparison module in fig. 4 at the same time. At this time, the counter does not start to work, when the rising edge of the measured instrument signal 303 comes, the counter synchronously works, then a stop signal is sent, the counter does not stop working immediately, and when the rising edge of the measured instrument signal 303 comes, the counter stops working. QuiltThe output count value of the gauge signal 303 is NMeasuringThe output count value of the standard signal 304 is NSign boardThe frequency of the standard signal 304 is fSign boardThen, the frequency of the measured meter signal 303 is: f. ofMeasuring＝fSign boardNMeasuring/NSign board. The frequency value of the standard signal 304 and the frequency value of the measured signal 303 are expressed by the following formula: σ ═ fMeasuring-fSign board)/fSign boardThe signal error is obtained by comparison in the signal analysis and comparison module of fig. 4, the ZigBee signal error rate of the measuring instrument can be known, and is displayed on the liquid crystal display 3 in fig. 2.
The embodiment of the utility model provides a wireless signal test method and device can use the zigBee signal error test of oil field well site very much, utilizes signal two-way feedback and precision frequency measurement technical principle such as, combines vector signal generator output signal EVM (error vector range), realizes the error test of oil well zigBee signal. The embodiment of the utility model provides a realize oil well front end measuring instrument's data transmission based on oil field standard communication protocol, study zigBee signal error calculation, intensity test and the accuracy of front end measuring instrument communication data transmission such as temperature, pressure, liquid level.
The utility model discloses an oil well measurement data physical model that signal error test method is based on is that the metering device that the oil field was using includes temperature transmitter, pressure transmitter, level gauge and RTU associated equipment for monitoring oil well operating mode, mechanical recovery efficiency, and upload measurement data to the computer equipment of oil field commander production center through the RTU in the switch board. The thermometer transmitter is used for monitoring the liquid production temperature of the oil well and the temperature of the multifunctional tank; the pressure transmitter is used for monitoring the pressure of an oil well casing, the pressure of produced liquid and the pressure of the functional tank; the liquid level meter is used for monitoring the oil storage liquid level of the well site multifunctional tank; the used communication protocol is a network transmission protocol and a network monitoring system which are standardized and established in the oil field, and real-time data communication can be realized.
The utility model discloses confirm that the zigBee signal transmission of metering device is out of alignment's method is based on precision frequency measurement technical principle such as. The technical principle is that in the measuring process, two counters are respectively used for standard signals and a standard quiltAnd simultaneously counting the detection signals. The ZigBee dual-channel is utilized to firstly send out a starting signal instruction, the counter does not start to work at the moment, when the rising edge of the measured instrument signal arrives, the counter synchronously works, then a stop signal is sent out, the counter does not stop working immediately, and when the rising edge of the measured instrument signal arrives, the counter stops working. The signal count value of the measured instrument is NMeasuringThe standard signal count value is NSign boardFrequency of the reference signal fSign boardThen, the frequency of the detected signal is: f. ofMeasuring＝fSign boardNMeasuring/NSign board。
An embodiment of the utility model provides an electronic equipment is still provided, include: a processor and a memory, the memory storing computer-executable instructions that, when executed by the processor, implement the method described above.
Furthermore, the embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions, and when executed, the computer-executable instructions implement the method described above.
The embodiment of the utility model provides a wireless signal test method and device are applicable to oil field well site zigBee signal error test, can communicate with the wireless metering device of oil field well site, can be at its zigBee data transmission accuracy of field test, and signal strength. The utility model discloses the test result provides the reference for the technical staff to can realize that corresponding instruction personnel calibrate, change relevant problem metering device, guarantee data transmission's accuracy.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention essentially or the part contributing to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a plurality of instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method according to the embodiments of the present invention.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A wireless signal testing device, comprising: the device comprises a communication module, a signal sending module, a signal acquisition module, a processor, a storage circuit, a display screen (3) and a power supply;
the communication module is used for establishing wireless communication connection with a metering device to be measured;
the signal sending module is used for sending standard signal frequency to the metering device to be measured;
the signal acquisition module is used for acquiring frequency information of a return signal of the metering device to be measured;
the processor is respectively connected with the signal acquisition module, the storage circuit and the display screen (3) and is used for receiving the frequency information of the return signal acquired by the signal acquisition module, analyzing the frequency information of the return signal and the frequency of the standard signal, displaying the analysis result through the display screen and storing the analysis result through the storage circuit; the power supply is used for supplying power to the signal sending module, the signal acquisition module, the processor, the storage circuit and the display screen.
2. The device according to claim 1, characterized in that the communication module further comprises a telescopic antenna (1).
3. The device according to claim 1, characterized in that the wireless signal testing device further comprises a serial port interface (6) for simulating the remote measurement and control terminal equipment.
4. The device of claim 1, wherein the wireless signal testing device further comprises a key input module.
5. The device according to claim 4, wherein the key input module comprises a power on/off key (2), a reset key, a test key, a direction key (5) and a number function key (4), and the key input module is used for selecting a power on/off function, a test function and a data storage, query and deletion function.
6. The apparatus of claim 1, wherein the processor further comprises: a vector signal generation module for testing the signal strength of the return signal.
7. The apparatus of claim 1 or 6, wherein the processor further comprises: and the signal analysis and comparison module is used for analyzing the frequency information of the return signal.
8. Device according to claim 1, characterized in that the display (3) is a liquid crystal display.
9. The apparatus of claim 6, wherein the vector signal generation module comprises: a first vector signal generator (301), a second vector signal generator (302).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202512A (en) * | 2020-11-18 | 2021-01-08 | 江苏中信博新能源科技股份有限公司 | Wireless signal strength detection method and device |
| CN113482585A (en) * | 2021-06-10 | 2021-10-08 | 徐志强 | Intelligent RTU (remote terminal unit) for oil well |
-
2019
- 2019-12-10 CN CN201922202719.4U patent/CN210578580U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202512A (en) * | 2020-11-18 | 2021-01-08 | 江苏中信博新能源科技股份有限公司 | Wireless signal strength detection method and device |
| CN112202512B (en) * | 2020-11-18 | 2021-06-01 | 江苏中信博新能源科技股份有限公司 | Wireless signal strength detection method and device |
| CN113482585A (en) * | 2021-06-10 | 2021-10-08 | 徐志强 | Intelligent RTU (remote terminal unit) for oil well |
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