CN213716146U - Multi-channel vibrating wire acquisition instrument based on NB-IoT and Bluetooth functions - Google Patents
Multi-channel vibrating wire acquisition instrument based on NB-IoT and Bluetooth functions Download PDFInfo
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- CN213716146U CN213716146U CN202022040388.1U CN202022040388U CN213716146U CN 213716146 U CN213716146 U CN 213716146U CN 202022040388 U CN202022040388 U CN 202022040388U CN 213716146 U CN213716146 U CN 213716146U
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Abstract
The utility model relates to a multichannel instrument of gathering that shakes string, include: the microprocessor module is connected with other modules of the vibrating wire acquisition instrument and is used for controlling the other modules to work; the vibrating wire excitation signal module is used for generating excitation pulses to be applied to a coil of the vibrating wire sensor; the vibrating wire sensor interface module is used for receiving a vibration signal of the vibrating wire sensor and acquiring and transmitting original data of the vibrating wire sensor; the vibrating wire signal conditioning module is used for acquiring and processing the original data of the vibrating wire sensor and outputting a vibrating wire signal obtained through processing; the vibrating wire signal acquisition module is used for acquiring the vibrating wire signal processed by the vibrating wire signal conditioning module, and transmitting vibration frequency data acquired by analog-to-digital conversion of the vibrating wire signal to the microprocessor module; the short-range equipment end is in communication connection with the Bluetooth module so as to set other modules and check the states of the vibrating wire sensor and acquired data; and the NB-IoT wireless module is used for acquiring the vibration frequency data acquired by the microprocessor module and uploading the vibration frequency data to the cloud.
Description
Technical Field
The utility model relates to a multichannel vibrating wire collection appearance based on NB-IoT and bluetooth function is applied to the structure health monitoring trade.
Background
The vibrating wire sensor is a non-electric quantity electric measuring sensor which is generally regarded and widely applied at home and abroad at present. The vibrating wire sensor directly outputs the self-vibration frequency signal of the vibrating wire, so the vibrating wire sensor has the characteristics of strong anti-interference capability, small influence of electrical parameters, small zero drift, small influence of temperature, stable and reliable performance, vibration resistance, long service life and the like. Vibrating wire sensors have been widely used in long-term monitoring projects for engineering and scientific research. The unique structural characteristics of the vibrating wire acquisition instrument as an instrument for acquiring the frequency of the vibrating wire sensor are also widely concerned.
Chinese utility model CN206450319U patent discloses a multichannel vibrating wire collection appearance with OLED, including passageway chip selection board, signal conditioning circuit, signal acquisition circuit, STM32 single chip microcomputer system, memory circuit, excitation circuit, the OLED display screen, RS485 communication module and vibrating wire sensor, it is through setting up the OLED display screen on multichannel vibrating wire collection appearance, and the data of vibrating wire sensor state and collection are known through the OLED display screen to the on-the-spot installer, and nevertheless installation OLED display screen need consume more consumptions, and destroy the waterproof efficiency of multichannel vibrating wire collection appearance casing.
Chinese utility model CN211121608U discloses a multichannel instrument of gathering vibrating wire based on LoRa, it includes power module, microprocessor module, LoRa wireless module, vibrating wire excitation signal module, vibrating wire sensor interface module, vibrating wire signal conditioning module, vibrating wire signal acquisition module and wired communication module. The LoRa wireless communication module is used for uploading data acquired by the multi-channel vibrating wire acquisition instrument to the gateway, and then uploading the acquired data to the cloud end by the gateway, however, under the condition of artificial damage or lightning damage, the acquired data cannot be uploaded to the cloud end in time, and further, monitoring personnel cannot know the change of the monitoring environment in time to cause a safety problem; the wired communication module comprises an RS232 interface, an RS485 interface and a USB (universal serial bus) switching port, the upper computer is connected with the interfaces through a data connecting line so as to realize the installation setting, the subsequent field data reading and maintenance of the multi-channel vibrating wire acquisition instrument by the upper computer, however, monitoring personnel are required to carry the data connecting line and the upper computer, so that the operation can be realized, and the inconvenience in use is brought.
Therefore, there is a need to provide a new multi-channel vibrating wire acquiring instrument to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multichannel vibrating wire gathers appearance based on NB-IoT and bluetooth function, the user connects multichannel vibrating wire through short range equipment end bluetooth such as cell-phones that hand-carries and gathers appearance, can realize setting up and looking over the purpose of running state, data to it, also need not to set up the gateway at the monitoring scene, further improvement site work efficiency.
In order to achieve the above object, the utility model provides a multichannel instrument of gathering vibrating wire based on NB-IoT and bluetooth function for gather vibrating wire sensor signal, multichannel instrument of gathering vibrating wire includes: the microprocessor module is connected with other modules of the multi-channel vibrating wire acquisition instrument and is used for controlling the other modules to work; the vibrating wire excitation signal module is a vibrating wire excitation circuit and is used for generating excitation pulses to be applied to a coil of the vibrating wire sensor; the vibrating wire sensor interface module is externally connected with the vibrating wire sensor and used for receiving a vibration signal of the vibrating wire sensor and acquiring and transmitting original data of the vibrating wire sensor; the vibrating wire signal conditioning module is used for acquiring and processing the original data of the vibrating wire sensor and outputting a vibrating wire signal obtained through processing; the vibrating wire signal acquisition module is used for acquiring the vibrating wire signal processed by the vibrating wire signal conditioning module, and transmitting vibration frequency data acquired by analog-to-digital conversion of the vibrating wire signal to the microprocessor module; the vibrating wire excitation signal module, the vibrating wire sensor interface module, the vibrating wire signal conditioning module and the vibrating wire signal acquisition module are sequentially connected; the short-range device end sets other modules of the multi-channel vibrating wire acquisition instrument, checks the state of the vibrating wire sensor and checks data acquired by the multi-channel vibrating wire acquisition instrument through the Bluetooth module; and the NB-IoT wireless module is used for acquiring the vibration frequency data acquired by the microprocessor module and uploading the vibration frequency data to the cloud.
Furthermore, the multichannel vibrating wire acquisition instrument further comprises a real-time clock module, and the short-range device end sets the real-time clock module through the Bluetooth module, so that the real-time clock module triggers the microprocessor module to control other modules of the multichannel vibrating wire acquisition instrument to work at a certain time interval.
Further, in a state that the real-time clock module does not trigger the microprocessor module to control other modules of the multi-channel vibrating wire acquisition instrument to work, only the real-time clock module, the Bluetooth module and the power management module are in a working state, the microprocessor module is in a dormant state, and other modules are not powered on.
Furthermore, the multi-channel vibrating wire acquisition instrument further comprises a memory module, wherein the memory module is used for storing acquired data obtained by triggering the microprocessor module to control other modules to work at various times at certain time intervals by the real-time clock module.
Furthermore, the multi-channel vibrating wire acquisition instrument further comprises a temperature signal acquisition compensation module which is used for acquiring the temperature of the vibrating wire sensor and carrying out temperature compensation on the vibrating wire sensor according to the acquired temperature so as to obtain more accurate vibrating wire data.
Furthermore, the multichannel vibrating wire acquisition instrument further comprises a battery and a power management module, and the battery supplies power to all modules of the multichannel vibrating wire acquisition instrument through the power management module.
Furthermore, the multichannel vibrating wire acquisition instrument further comprises a solar charging system, a battery and a power management module, wherein the battery supplies power to all modules of the multichannel vibrating wire acquisition instrument through the power management module, and the solar charging system charges the battery through the power management module.
Furthermore, the vibrating wire signal conditioning module comprises a filter circuit and an amplifying circuit, and is used for filtering interference signals collected by the vibrating wire sensor and amplifying body signals of the vibrating wire sensor.
Furthermore, the multichannel vibrating wire acquisition instrument further comprises a shell, and all modules of the multichannel vibrating wire acquisition instrument are arranged in the shell.
Furthermore, the data uploaded to the cloud terminal through the NB-IoT wireless module is viewed through a remote device terminal.
The utility model discloses following beneficial effect has: 1) the Bluetooth module is arranged in the multichannel vibrating wire acquisition instrument, and the purposes of checking various settings and states and reading data of the multichannel vibrating wire acquisition instrument can be realized through Bluetooth connection of short-range equipment ends such as a mobile phone and the like;
2) the NB-IoT wireless module is arranged in the multichannel vibrating wire acquisition instrument to replace a LoRa wireless module in the prior art, a gateway does not need to be arranged on a monitoring site, the multichannel vibrating wire acquisition instrument directly uploads acquired data to the cloud through the built-in NB-IoT wireless module, and the problem that remote monitoring personnel cannot know timely monitoring environment changes and safety accidents are caused due to the fact that the gateway is damaged is avoided.
Drawings
Fig. 1 is a schematic diagram of an application scenario of the multi-channel vibrating wire collecting instrument based on NB-IoT and bluetooth functions according to the present invention;
fig. 2 is the utility model discloses a multichannel vibrating wire collection appearance structural component sketch map based on NB-IoT and bluetooth function.
Detailed Description
The present invention will be further described with reference to fig. 1 and 2 by means of specific embodiments.
Referring to fig. 1 and 2, the present application provides a multi-channel vibrating wire acquiring instrument based on NB-IoT and bluetooth functions, for acquiring vibrating wire sensor signals.
The multichannel vibrating wire acquisition instrument comprises a shell, a battery, a power supply management module, a microprocessor module, a vibrating wire excitation signal module, a vibrating wire sensor interface module, a vibrating wire signal conditioning module, a vibrating wire signal acquisition module, a Bluetooth module, an NB-IoT wireless module, a real-time clock module, a memory module and a temperature signal acquisition compensation module, wherein the battery, the power supply management module, the microprocessor module, the vibrating wire excitation signal module, the vibrating wire sensor interface module, the vibrating wire signal conditioning module, the vibrating.
The battery is connected with the power supply management module, and the power supply management module is connected with other modules of the multi-channel vibrating wire acquisition instrument. The battery supplies power to other modules of the multi-channel vibrating wire acquisition instrument through the power management module. In other embodiments, a solar charging system may be disposed outside the housing of the multi-channel vibrating wire collecting instrument, such that the solar charging system is connected to the power management module, the battery is connected to the power management module, and the power management module is connected to other modules of the multi-channel vibrating wire collecting instrument. The battery supplies power to other modules of the multi-channel vibrating wire acquisition instrument through the power management module, and the solar charging system charges the battery through the power management module.
The microprocessor module is respectively connected with the vibrating wire excitation signal module, the vibrating wire sensor interface module, the vibrating wire signal conditioning module, the vibrating wire signal acquisition module, the Bluetooth module, the NB-IoT wireless module, the real-time clock module, the memory module and the temperature signal acquisition compensation module and is used for controlling the other modules to work.
The vibrating wire excitation signal module, the vibrating wire sensor interface module, the vibrating wire signal conditioning module and the vibrating wire signal acquisition module are sequentially connected.
And the vibrating wire excitation signal module is a vibrating wire excitation circuit and is used for generating excitation pulses to be applied to the coil of the vibrating wire sensor.
And the vibrating wire sensor interface module is externally connected with the vibrating wire sensor and used for receiving a vibration signal of the vibrating wire sensor and acquiring and transmitting original data of the vibrating wire sensor. The vibrating wire sensor interface module comprises a channel chip selection board, the channel chip selection board can be 3 channels, 4 channels or other channels, and the vibrating wire sensor interface module can comprise a plurality of channel chip selection boards to form a 7-channel, 8-channel or 16-channel multi-channel vibrating wire acquisition instrument to be connected with a plurality of vibrating wire sensors.
And the vibrating wire signal conditioning module is used for acquiring and processing the original data of the vibrating wire sensor and outputting the vibrating wire signal obtained by processing. The vibrating wire signal conditioning module comprises a filter circuit and an amplifying circuit and is used for filtering interference signals collected by the vibrating wire sensor and amplifying body signals of the vibrating wire sensor.
And the vibrating wire signal acquisition module is used for acquiring the vibrating wire signal processed by the vibrating wire signal conditioning module, and transmitting the vibrating wire signal to the microprocessor module after analog-to-digital conversion to acquire vibration frequency data.
The short-range equipment end sets other modules of the multi-channel vibrating wire acquisition instrument, checks the state of the vibrating wire sensor and checks data acquired by the multi-channel vibrating wire acquisition instrument through the Bluetooth module;
and the NB-IoT wireless module is used for acquiring the vibration frequency data acquired by the microprocessor module and uploading the vibration frequency data to the cloud end, and the remote equipment end can check the data uploaded to the cloud end.
And the real-time clock module is used for triggering the microprocessor module to control other modules of the multi-channel vibrating wire acquisition instrument to work at a certain time interval, and the time interval is set after being connected with the Bluetooth module through the short-range equipment end. And under the condition that the real-time clock module does not trigger the microprocessor module to control other modules of the multi-channel vibrating wire acquisition instrument to work, only the real-time clock module, the Bluetooth module and the power management module are in a working state, the microprocessor module is in a dormant state, and other modules are not electrified.
And the memory module is used for storing the acquired data obtained by triggering the microprocessor module to control other modules to work at each time at a certain time interval by the real-time clock module.
And the temperature signal acquisition and compensation module is used for acquiring the temperature of the vibrating wire sensor and performing temperature compensation on the vibrating wire sensor according to the acquired temperature so as to obtain more accurate vibrating wire data.
The short-range equipment end is a smart phone, a tablet personal computer or a smart bracelet and the like with a Bluetooth connection function; the remote equipment end is a smart phone, a tablet computer, a smart bracelet or a computer and the like.
When the multichannel sinusoidal acquisition instrument is used, the short-range equipment end is connected with the Bluetooth module of the multichannel vibrating wire acquisition instrument to awaken the multichannel vibrating wire acquisition instrument, the battery is used for electrifying other modules through the power management module, the short-range equipment end is used for initially setting the modules of the multichannel sinusoidal acquisition instrument, and a certain time interval for triggering the microprocessor module by the real-time clock module can be set to be one hour, and certainly, other time intervals can also be set;
after the initialization is finished, the real-time clock module triggers the microprocessor module to control other modules to work at certain time intervals, at the moment, the vibrating wire excitation signal module generates excitation pulses to be applied to a coil of the vibrating wire sensor, the vibrating wire sensor interface module receives vibration signals of the vibrating wire sensor, acquires and transmits original data of the vibrating wire sensor to the vibrating wire signal conditioning module, the vibrating wire signal conditioning module acquires and processes the original data of the vibrating wire sensor, outputs processed vibrating wire signals to the vibrating wire signal acquisition module, the vibrating wire signal acquisition module acquires the vibrating wire signals processed by the vibrating wire signal conditioning module, the vibrating wire signal is subjected to analog-to-digital conversion to obtain vibration frequency data, the vibration frequency data are transmitted to the microprocessor module, the microprocessor module obtains the vibration frequency data and transmits the vibration frequency data to the NB-IoT wireless module, and the NB-IoT wireless module uploads the vibration frequency data to the cloud end for being checked by the remote equipment end; the temperature signal acquisition and compensation module synchronously acquires the temperature of the vibrating wire sensor and performs temperature compensation on the vibrating wire sensor according to the acquired temperature so as to obtain more accurate vibrating wire data; the memory module synchronously acquires and stores the vibration frequency data acquired by the microprocessor module, so that data loss is prevented.
The utility model discloses following beneficial effect has: 1) the Bluetooth module is arranged in the multichannel vibrating wire acquisition instrument, and the purposes of checking various settings and states and reading data of the multichannel vibrating wire acquisition instrument can be realized through Bluetooth connection of short-range equipment ends such as a mobile phone and the like;
2) the NB-IoT wireless module is arranged in the multichannel vibrating wire acquisition instrument to replace a LoRa wireless module in the prior art, a gateway does not need to be arranged on a monitoring site, the multichannel vibrating wire acquisition instrument directly uploads acquired data to the cloud through the built-in NB-IoT wireless module, and the problem that remote monitoring personnel cannot know timely monitoring environment changes and safety accidents are caused due to the fact that the gateway is damaged is avoided.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (9)
1. A multichannel vibrating wire acquisition instrument based on NB-IoT and Bluetooth functions is used for acquiring vibrating wire sensor signals, and is characterized by comprising:
the microprocessor module is connected with other modules of the multi-channel vibrating wire acquisition instrument and is used for controlling the other modules to work;
the vibrating wire excitation signal module is a vibrating wire excitation circuit and is used for generating excitation pulses to be applied to a coil of the vibrating wire sensor;
the vibrating wire sensor interface module is externally connected with the vibrating wire sensor and used for receiving a vibration signal of the vibrating wire sensor and acquiring and transmitting original data of the vibrating wire sensor;
the vibrating wire signal conditioning module is used for acquiring and processing the original data of the vibrating wire sensor and outputting a vibrating wire signal obtained through processing;
the vibrating wire signal acquisition module is used for acquiring the vibrating wire signal processed by the vibrating wire signal conditioning module, and transmitting vibration frequency data acquired by analog-to-digital conversion of the vibrating wire signal to the microprocessor module;
the vibrating wire excitation signal module, the vibrating wire sensor interface module, the vibrating wire signal conditioning module and the vibrating wire signal acquisition module are sequentially connected;
the short-range device end sets other modules of the multi-channel vibrating wire acquisition instrument, checks the state of the vibrating wire sensor and checks data acquired by the multi-channel vibrating wire acquisition instrument through the Bluetooth module;
and the NB-IoT wireless module is used for acquiring the vibration frequency data acquired by the microprocessor module and uploading the vibration frequency data to the cloud.
2. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the multichannel vibrating wire acquisition instrument further comprises a real-time clock module, and the short-range equipment end sets the real-time clock module through the Bluetooth module, so that the real-time clock module triggers the microprocessor module to control other modules of the multichannel vibrating wire acquisition instrument to work at certain time intervals; and under the condition that the real-time clock module does not trigger the microprocessor module to control other modules of the multi-channel vibrating wire acquisition instrument to work, only the real-time clock module, the Bluetooth module and the power management module are in a working state, the microprocessor module is in a dormant state, and other modules are not electrified.
3. The multi-channel vibrating wire acquiring instrument as recited in claim 2, wherein: the multi-channel vibrating wire acquisition instrument further comprises a memory module, wherein the memory module is used for storing acquisition data acquired by the real-time clock module triggering the microprocessor module to control other modules to work at different times at certain time intervals.
4. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the multichannel vibrating wire acquisition instrument further comprises a temperature signal acquisition compensation module which is used for acquiring the temperature of the vibrating wire sensor and carrying out temperature compensation on the vibrating wire sensor according to the acquired temperature so as to obtain more accurate vibrating wire data.
5. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the multichannel vibrating wire acquisition instrument further comprises a battery and a power supply management module, and the battery supplies power to each module of the multichannel vibrating wire acquisition instrument through the power supply management module.
6. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the multichannel vibrating wire acquisition instrument further comprises a solar charging system, a battery and a power management module, wherein the battery supplies power to all modules of the multichannel vibrating wire acquisition instrument through the power management module, and the solar charging system charges the battery through the power management module.
7. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the vibrating wire signal conditioning module comprises a filter circuit and an amplifying circuit and is used for filtering interference signals collected by the vibrating wire sensor and amplifying body signals of the vibrating wire sensor.
8. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: the multichannel vibrating wire acquisition instrument further comprises a shell, and all modules of the multichannel vibrating wire acquisition instrument are arranged in the shell.
9. The multi-channel vibrating wire acquiring instrument as recited in claim 1, wherein: and the data uploaded to the cloud terminal through the NB-IoT wireless module is checked through a remote equipment terminal.
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| CN202022040388.1U CN213716146U (en) | 2020-09-17 | 2020-09-17 | Multi-channel vibrating wire acquisition instrument based on NB-IoT and Bluetooth functions |
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| CN202022040388.1U CN213716146U (en) | 2020-09-17 | 2020-09-17 | Multi-channel vibrating wire acquisition instrument based on NB-IoT and Bluetooth functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485735A (en) * | 2022-03-14 | 2022-05-13 | 哈尔滨工业大学 | Self-adaptive sweep frequency excitation string type wireless sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114485735A (en) * | 2022-03-14 | 2022-05-13 | 哈尔滨工业大学 | Self-adaptive sweep frequency excitation string type wireless sensor |
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