CN110806710A - Measurement and control system and method based on fusion of multiple sensors - Google Patents
Measurement and control system and method based on fusion of multiple sensors Download PDFInfo
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention relates to a measurement and control system and a measurement and control method based on fusion of various sensors. The invention can integrate the sensing modules of radio frequency, audio and video and the like in a single system to finish the test of different functions, and the embedded operating system runs the Linux system and can control and drive the to-be-tested piece to be integrated in the test system, thus the test measurement and control work can be finished in one test system at the same time, and the invention is greatly helpful for improving the test efficiency of a production line and reducing the test space.
Description
Technical Field
The invention relates to the technical field of measurement and control, in particular to a measurement and control system and a measurement and control method based on fusion of various sensors.
Background
The multi-sensor data fusion refers to fully utilizing multi-sensor information resources of different time and space, automatically analyzing, integrating, dominating and using multi-sensor observation information obtained according to time sequence by adopting a computer technology under a certain criterion to obtain consistency explanation and description of a measured object so as to complete required decision and estimation tasks, and enable a system to obtain performance superior to that of each component of the system. The multi-sensor data fusion can increase the reliability of measurement and improve the reliability of the system, thereby being widely applied to the aspects of industry, military affairs and the like. In a multi-sensor system, environmental information, namely evidence, provided by each information source has a certain degree of uncertainty, which is mainly represented by the incompleteness of the evidence; unreliability of the acquired evidence; the imprecision of the expressed evidence; the immaturity of the applied evidence and the contradiction of various evidences.
The conventional test measurement system only performs test measurement on a single type of signal, and the conventional test measurement system only can complete test measurement on a to-be-tested piece, and the control on the to-be-tested piece needs an additional computer, so the conventional test measurement system has the following defects:
1) different functions of a single tested piece need different test systems for testing;
2) only can complete the testing and measuring task and cannot control the tested piece;
how to fuse and apply the multi-sensor data to a test measurement system, the work of effectively realizing the test of different functions and simultaneously completing the control becomes a technical problem which needs to be solved urgently.
Disclosure of Invention
In view of this, the invention provides a measurement and control system and a measurement and control method based on the fusion of multiple sensors, the measurement and control system of the invention integrates different types of sensors in a single test system and can be effectively fused, thereby greatly reducing the volume and the cost of the test system, and the measurement and control system of the invention integrates the test measurement and the control of a to-be-tested piece in one system, thereby reducing the complexity of the system.
In order to achieve the purpose, the method is realized by the following technical scheme:
a measurement and control system based on fusion of multiple sensors comprises a front-end sensing module, a central processing and control module and a remote server;
the front-end sensing module is connected with a piece to be detected and comprises a radio frequency sensing module, an optical sensing module and a sound sensing module;
the central processing and control module is connected with the front-end sensing module through a radio frequency cable and comprises a processor module, two data transceiving modules, a high-speed transmission module, a high-speed buffer module, a temperature sensing module and a power sensing module;
a radio frequency sensing module, an optical sensing module and a sound sensing module in the front-end sensing module all adopt mature commercial sensors, convert collected sound, light and video signals into level signals and transmit the level signals to the central processing and control module through the radio frequency cable;
the central processing and control module receives the level signal through the data transceiver module, converts the level signal into a digital signal, and transmits the digital signal to the processor module through a high-speed bus to perform data processing and parameter measurement;
when the receiving performance of the piece to be tested is tested, the processor module transmits an excitation signal to the data transceiver module through a high-speed bus and converts the excitation signal into an analog signal, and then the analog signal is output to the front-end sensing module through the radio-frequency cable, and the front-end sensing module converts the analog signal into sound, light and video signals and then is used for exciting the piece to be tested;
and the remote server establishes communication connection with the central processing and control module through the high-speed transmission module and is used for receiving and storing the test report.
Furthermore, two data transceiver modules are arranged in the central processing and control module, and each data transceiver module integrates two paths of transmission and two paths of reception;
the power sensing module comprises a power sensor unit and an ADC unit, and voltage signals detected by the power sensor unit are input into the processor module after being sampled by the ADC unit so as to calculate a power value;
the serial port unit is realized by two paths of UART interfaces specially used for the processor module.
Further, the radio frequency sensing module, the optical sensing module and the sound sensing module in the front end sensing module can be stacked in parallel.
Further, the processor module includes a logical processing portion and an embedded operating system portion.
Furthermore, the logic processing part and the embedded operating system part are communicated through a data bus to complete data interaction, and the logic processing part completes extraction filtering, interpolation filtering, digital gain, attenuation adjustment, modulation, demodulation, coding and decoding processing according to actual requirements.
Furthermore, the embedded operating system partially runs a Linux system and is used for functions including a user interface, data analysis, flow control, protocol parameter testing, radio frequency parameter testing, control of a to-be-tested piece and output of a transmission interface.
Further, the control driving program of the to-be-tested piece is installed in the Linux embedded operating system.
A measurement and control method applied to the measurement and control system is characterized by comprising the following steps:
step 1, starting a measurement and control system, receiving test parameters input by a user, determining a test mode according to the test parameters input by the user, and setting initialization parameters of the test system;
step 2, establishing communication connection with the piece to be tested through the control drive of the piece to be tested, and if the communication connection is successfully established, executing step 3; if the communication connection is failed to be established, the measurement and control process is ended, and error information is returned;
step 3, after the communication connection is successfully established, the processor module controls the piece to be tested to enter the test mode, and tests and measures the piece to be tested according to the initialization parameter setting;
and 4, generating a test report after the test measurement is finished, and sending the test report to the remote server through a high-speed transmission module.
Compared with the prior art, the invention has the advantages that: the invention can integrate the sensing modules of radio frequency, audio and video and the like in a single system to complete the test of different functions; the embedded operating system runs a Linux system and can integrate the control drive of the to-be-tested piece into the test system; therefore, the test measurement and control work can be simultaneously finished in one test system, and great help is provided for improving the production line test efficiency and reducing the test space.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
FIG. 1 is a schematic diagram of the structure of the measurement and control system of the present invention;
FIG. 2 is a schematic diagram of the structure of the CPU and control module according to the present invention;
FIG. 3 is a schematic view of a measurement and control flow of the measurement and control system of the present invention;
FIG. 4 is a schematic diagram of the structure of the processor module according to the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The invention will be described in further detail below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a configuration of a measurement and control system with multiple sensors integrated according to the present invention, which includes a front-end sensing module, a central processing and control module, and a remote server;
the front-end sensing module is connected with a piece to be detected and comprises a radio frequency sensing module, an optical sensing module and a sound sensing module;
the central processing and control module is connected with the front-end sensing module through a radio frequency cable and comprises a processor module, two data transceiving modules, a high-speed transmission module, a high-speed buffer module, a temperature sensing module and a power sensing module;
a radio frequency sensing module, an optical sensing module and a sound sensing module in the front-end sensing module all adopt mature commercial sensors, convert collected sound, light and video signals into level signals and transmit the level signals to the central processing and control module through the radio frequency cable;
the central processing and control module receives the level signal through the data transceiver module, converts the level signal into a digital signal, and transmits the digital signal to the processor module through a high-speed bus to perform data processing and parameter measurement;
when the receiving performance of the piece to be tested is tested, the processor module transmits an excitation signal to the data transceiver module through a high-speed bus and converts the excitation signal into an analog signal, and then the analog signal is output to the front-end sensing module through the radio-frequency cable, and the front-end sensing module converts the analog signal into sound, light and video signals and then is used for exciting the piece to be tested;
and the remote server establishes communication connection with the central processing and control module through the high-speed transmission module and is used for receiving and storing the test report.
FIG. 2 is a schematic diagram of the structure of the CPU and the control module according to the present invention.
The processor module can adopt Xilinx or other company extensible processing platform series chips;
the data transceiver module can adopt an integrated broadband RF transceiver of ADI or other companies;
two data transceiver modules are arranged in the central processing and control module, and each data transceiver module integrates two paths of transmission and two paths of reception. Thus, the central processing and control module system is provided with 4-way transmission and 4-way reception capabilities;
the power sensing module adopts a root mean square response power detector of ADI company, comprises a power sensor unit and an ADC unit, voltage signals detected by the power sensor unit are input into the processor module after being sampled by the ADC unit to calculate a power value, and covers the frequency range of the data transceiver module;
the temperature sensing module can adopt a Linear Technology or other company related chips, and can ensure the accuracy of 0.1 ℃.
The cache module may be a Micron or other company DDR module having a capacity of 4GB or more.
The high-speed transmission module comprises an Ethernet interface unit, a USB3.0 interface unit, a QSFP + optical fiber interface unit, a WIFI interface unit and a serial port unit;
the Ethernet interface unit can be realized by adopting a PHY chip of Marvell or other companies, the processor module loads a Linux embedded operating system, and a TCP/IP protocol stack is operated in the embedded operating system to realize gigabit Ethernet transmission;
the USB3.0 interface unit can be realized by a Cypress or a USB PHY chip of other companies, and the theoretical transmission bandwidth can reach or exceed 5 Gbps;
the QSFP + optical fiber interface unit is realized by a special GTX high-speed serial bus of the processor module, and the theoretical transmission bandwidth can reach or be more than 50 Gbps;
the WIFI interface unit can be realized by adopting BCM8000 or other modules;
the serial port unit is realized by two paths of UART interfaces specially used for the processor module.
The front-end sensing module comprises a radio frequency sensing module, an optical sensing module and a sound sensing module, and different modules can be stacked in parallel.
The schematic view of the measurement and control flow of the measurement and control system is shown in fig. 3. The measurement and control process is completely controlled by the processor module, and specifically comprises the following steps:
step 1, starting a measurement and control system, receiving test parameters input by a user, determining a test mode according to the test parameters input by the user, and setting initialization parameters of the test system;
step 2, establishing communication connection with the piece to be tested through the control drive of the piece to be tested, and if the communication connection is successfully established, executing step 3; if the communication connection is failed to be established, the measurement and control process is ended, and error information is returned;
step 3, after the communication connection is successfully established, the processor module controls the piece to be tested to enter the test mode, and tests and measures the piece to be tested according to the initialization parameter setting;
and 4, generating a test report after the test measurement is finished, and sending the test report to the remote server through a high-speed transmission module.
The structure of the processor module is shown in fig. 4, the processor module comprises a logic processing part and an embedded operating system part, the logic processing part and the embedded operating system part are communicated through a data bus to complete data interaction, and the logic processing part completes extraction filtering, interpolation filtering, digital gain, attenuation adjustment, modulation, demodulation, coding and decoding processing according to actual requirements;
the embedded operating system part runs a Linux system and is used for functions including a user interface, data analysis, flow control, protocol parameter test, radio frequency parameter test, control of the piece to be tested and output transmission interface, and a control driving program of the piece to be tested is installed in the Linux system.
And the high-speed transmission module is connected with the piece to be detected and is used for controlling the piece to be detected.
The invention can be applied to the test of the production line of the Internet of things module and the mobile phone terminal. The radio frequency function and the audio and video function of a traditional Internet of things module and a mobile phone terminal production line need to be tested at different stations; and the test of the piece to be tested needs special equipment, and the control part needs a general computer, so that the limited production line space and the test efficiency are greatly influenced.
The invention can integrate the sensing modules of radio frequency, audio and video and the like in a single system to complete the test of different functions; the embedded operating system runs a Linux system and can integrate the control drive of the to-be-tested piece into the test system; therefore, the test measurement and control work can be simultaneously finished in one test system, and great help is provided for improving the production line test efficiency and reducing the test space.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
It should be noted that the present invention can be embodied in other specific forms, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. A measurement and control system based on fusion of multiple sensors is characterized by comprising a front-end sensing module, a central processing and control module and a remote server;
the front-end sensing module is connected with a piece to be detected and comprises a radio frequency sensing module, an optical sensing module and a sound sensing module;
the central processing and control module is connected with the front-end sensing module through a radio frequency cable and comprises a processor module, two data transceiving modules, a high-speed transmission module, a high-speed buffer module, a temperature sensing module and a power sensing module;
a radio frequency sensing module, an optical sensing module and a sound sensing module in the front-end sensing module all adopt mature commercial sensors, convert collected sound, light and video signals into level signals and transmit the level signals to the central processing and control module through the radio frequency cable;
the central processing and control module receives the level signal through the data transceiver module, converts the level signal into a digital signal, and transmits the digital signal to the processor module through a high-speed bus to perform data processing and parameter measurement;
when the receiving performance of the piece to be tested is tested, the processor module transmits an excitation signal to the data transceiver module through a high-speed bus and converts the excitation signal into an analog signal, and then the analog signal is output to the front-end sensing module through the radio-frequency cable, and the front-end sensing module converts the analog signal into sound, light and video signals and then is used for exciting the piece to be tested;
and the remote server establishes communication connection with the central processing and control module through the high-speed transmission module and is used for receiving and storing the test report.
2. The measurement and control system according to claim 1,
the central processing and control module is internally provided with two data receiving and transmitting modules, and each data receiving and transmitting module integrates two paths of transmission and two paths of reception;
the power sensing module comprises a power sensor unit and an ADC unit, and voltage signals detected by the power sensor unit are input into the processor module after being sampled by the ADC unit so as to calculate a power value;
the serial port unit is realized by two paths of UART interfaces specially used for the processor module.
3. The measurement and control system according to claim 1, wherein the rf sensing module, the optical sensing module and the acoustic sensing module of the front-end sensing module are stacked in parallel.
4. The instrumentation system of one of claims 1 to 3, wherein the processor module comprises a logical processing portion and an embedded operating system portion.
5. The measurement and control system of claim 4, wherein the logic processing portion communicates with the embedded operating system portion via a data bus to complete data interaction, and the logic processing portion performs decimation filtering, interpolation filtering, digital gain, attenuation adjustment, modulation, demodulation, encoding, and decoding processing according to actual requirements.
6. The measurement and control system according to claim 6, wherein the embedded operating system runs a Linux system in part for including user interface, data analysis, process control, protocol parameter testing, radio frequency parameter testing, dut control, and output transmission interface functions.
7. The measurement and control system according to claim 4, wherein the control driver of the DUT is installed in the Linux embedded operating system.
8. An instrumentation method applied in an instrumentation system according to one of the claims 1 to 7, characterized in that the instrumentation method comprises the steps of:
step 1, starting a measurement and control system, receiving test parameters input by a user, determining a test mode according to the test parameters input by the user, and setting initialization parameters of the test system;
step 2, establishing communication connection with the piece to be tested through the control drive of the piece to be tested, and if the communication connection is successfully established, executing step 3; if the communication connection is failed to be established, the measurement and control process is ended, and error information is returned;
step 3, after the communication connection is successfully established, the processor module controls the piece to be tested to enter the test mode, and tests and measures the piece to be tested according to the initialization parameter setting;
and 4, generating a test report after the test measurement is finished, and sending the test report to the remote server through a high-speed transmission module.
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