CN115655451A

CN115655451A - Wireless vibration and temperature measurement system based on NB-IoT

Info

Publication number: CN115655451A
Application number: CN202211314267.9A
Authority: CN
Inventors: 刘岩; 王勋; 王政
Original assignee: Beijing Huaxin Science And Technology Co ltd
Current assignee: Beijing Huaxin Science And Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-01-31

Abstract

The invention relates to the technical field of Internet of things and discloses a wireless vibration and temperature measurement system based on NB-IoT (NB-IoT), which comprises a vibration measurement module, a temperature measurement module, an NB-IoT wireless transmission module, a data receiving module, a vibration signal acquisition module and a temperature signal acquisition module, wherein the vibration measurement module is electrically connected with the vibration signal acquisition module, the vibration signal acquisition module is electrically connected with the data receiving module, the temperature measurement module is electrically connected with the temperature signal acquisition module, and the temperature signal acquisition module is electrically connected with the data receiving module. The NB-IoT-based wireless vibration and temperature measurement system collects signals through the vibration signal collection module and the temperature signal collection module, so that workers do not need to measure the operation conditions of machines or other equipment on site, the labor cost is reduced, and accidental errors caused by manual measurement are avoided.

Description

Wireless vibration and temperature measurement system based on NB-IoT

Technical Field

The invention belongs to the technical field of Internet of things, and particularly relates to a wireless vibration and temperature measurement system based on NB-IoT.

Background

The internet of things is that any object is connected with a network through information sensing equipment according to an agreed protocol, and the object performs information exchange and communication through an information media medium so as to realize functions of intelligent identification, positioning, tracking, supervision and the like.

The internet of things, referred to as IoT for short, is to collect any object or process needing monitoring, connection and interaction in real time through various devices and technologies such as various information sensors, radio frequency identification technologies, global positioning systems, infrared sensors and laser scanners, collect various information needed by sound, light, heat, electricity, mechanics, chemistry, biology, location, and realize ubiquitous connection between objects and objects, and between objects and people through various possible network accesses, so as to realize intelligent sensing, identification and management of objects and processes.

The narrowband Internet of things (NB-IoT) is constructed in a cellular network, only consumes about 180kHz bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce the deployment cost and realize smooth upgrade.

NB-IoT is an emerging technology in the IoT field, supports cellular data connection of low-power devices in a wide area network, also called low-power wide area network, supports efficient connection of devices with long standby time and high requirements for network connection, and is said to improve the battery life of NB-IoT devices by at least 10 years, and also provide very comprehensive indoor cellular data connection coverage.

In the case of a large-scale assembly line factory, in terms of the operation of the machine, the machine needs to be inspected and maintained, a professional worker is usually required to hold a detection device to detect the specified position of the machine once, and the detection device is generally connected with a computer control end in a wired connection manner, so that the following problems can occur in the detection device: (1) The wired connection causes the transmission distance to be limited and the power consumption to be large, which causes the service life of the battery to be reduced; (2) The remote awakening of mechanical equipment cannot be supported, and if a worker wants to actively check the detection condition, the efficiency is low after the node equipment automatically wakes up; (3) The wire and the instrument are easy to damage in the wired connection, and the failure rate is relatively high; (4) The wired connection causes the data volume transmitted by each packet to be small, and the amount of information of the equipment which can be observed each time is small, so that the wireless vibration and temperature measurement system based on the NB-IoT is provided.

Disclosure of Invention

In view of the above situation, in order to overcome the defects in the prior art, the present invention provides a NB-IoT-based wireless vibration and temperature measurement system, which effectively solves the problems set forth in the above background art.

In order to achieve the purpose, the invention provides the following technical scheme: a wireless vibration and temperature measurement system based on NB-IoT comprises a vibration measurement module, a temperature measurement module, an NB-IoT wireless transmission module, a data receiving module, a vibration signal acquisition module and a temperature signal acquisition module, wherein the vibration measurement module is electrically connected with the vibration signal acquisition module, the vibration signal acquisition module is electrically connected with the data receiving module, the temperature measurement module is electrically connected with the temperature signal acquisition module, the temperature signal acquisition module is electrically connected with the data receiving module, and the data receiving module is electrically connected with the NB-IoT wireless transmission module.

Preferably, an acceleration sensor is arranged in the vibration measuring module and used for receiving transmitted vibration, a piezoelectric crystal is arranged in the acceleration sensor, the piezoelectric crystal can generate different charge amounts when being subjected to vibration of different degrees, and the acceleration sensor converts transmitted vibration signals into electric signals.

Preferably, a temperature sensor is arranged in the temperature measuring module and used for receiving the transmitted temperature, a thermistor is arranged in the temperature sensor, the thermistor can generate different resistance values under the temperature conditions of different degrees, and the temperature sensor converts the transmitted temperature signals into electric signals.

Preferably, the vibration signal acquisition unit is used for receiving the electric signal transmitted by the vibration measurement module, and the temperature signal acquisition unit is used for receiving the electric signal transmitted by the temperature measurement module.

Preferably, the data processing module comprises a computer CPU processing unit and a data recording unit, the computer CPU processing unit is used for summarizing the electrical signals, and the data recording unit is used for recording the change rules of different electrical signals in the same period.

Preferably, the NB-IoT wireless transmission module is connected to the cloud data terminal, the NB-IoT wireless transmission module reflects the temperature and vibration conditions to the cloud data terminal, and the staff monitors the real-time conditions of the site according to the cloud data terminal information.

Preferably, the data recording unit comprises a timing unit, a data screening unit, a data average value taking unit and a data summarizing unit, the timing unit is used for setting a standard timing period, the timing period can be set by a worker through a computer CPU at will, and the data screening unit is used for screening the maximum data value and the minimum data value.

Preferably, the data average value taking unit is used for calculating an average value of the counted data, and the data summarizing unit is used for drawing the average value of the data into a table and storing the table in the cloud data terminal, so that the data summarizing unit is convenient to use for calling and observing.

Compared with the prior art, the invention has the beneficial effects that:

1. the wireless vibration and temperature measurement system based on the NB-IoT collects signals through the vibration signal collection module and the temperature signal collection module, so that workers do not need to measure the operation condition of machines or other equipment on site, the labor cost is reduced, and accidental errors caused by manual measurement are solved.

2. And due to the ultra-long distance wireless transmission, the cost of wiring is saved, the maintenance cost caused by wiring is saved, and the production efficiency of enterprises is improved.

3. The power consumption based on NB-IoT is low, and the service life of the equipment is prolonged.

4. The problem that the traditional wireless transmission data volume is small is solved because the NB-IoT transmission data volume is large.

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 specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic flow chart of the system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment is given by figure 1, the invention comprises a wireless vibration and temperature measurement system based on NB-IoT, which comprises a vibration measurement module, a temperature measurement module, an NB-IoT wireless transmission module, a data receiving module, a vibration signal acquisition module and a temperature signal acquisition module, wherein the vibration measurement module is electrically connected with the vibration signal acquisition module, the vibration signal acquisition module is electrically connected with the data receiving module, the temperature measurement module is electrically connected with the temperature signal acquisition module, the temperature signal acquisition module is electrically connected with the data receiving module, the data receiving module is electrically connected with the NB-IoT wireless transmission module, an acceleration sensor is arranged in the vibration measurement module, the acceleration sensor is used for receiving transmitted vibration, a piezoelectric crystal is arranged in the acceleration sensor, and different charge quantities can be generated when the piezoelectric crystal is subjected to vibration of different degrees, the acceleration sensor converts transmitted vibration signals into electric signals, the temperature measuring module is internally provided with a temperature sensor which is used for receiving transmitted temperature, the temperature sensor is internally provided with a thermistor which can generate different resistance values under the temperature conditions of different degrees, the temperature sensor converts the transmitted temperature signals into the electric signals, the vibration signal acquisition unit is used for receiving the electric signals transmitted by the vibration measuring module, the temperature signal acquisition unit is used for receiving the electric signals transmitted by the temperature measuring module, the data processing module comprises a computer CPU processing unit and a data recording unit, the computer CPU processing unit is used for summarizing the electric signals, the data recording unit is used for recording the change rules of different electric signals in the same period, the NB-IoT wireless transmission module is connected with the cloud data end, and the NB-IoT wireless transmission module reflects the temperature and vibration conditions to the cloud data end, the system comprises a data recording unit, a data sorting unit, a data analyzing unit and a data collecting unit, wherein the data recording unit comprises a timing unit, a data screening unit, a data average value taking unit and a data collecting unit, the timing unit is used for setting a standard timing period, the timing period can be set by a worker through a computer CPU at will, the data screening unit is used for screening the maximum data value and the minimum data value, the data average value taking unit is used for calculating the average value of the counted data, and the data collecting unit is used for drawing the average value of the data into a table and storing the table in a cloud data terminal, so that the data recording unit is convenient for calling and observing;

the enterprise equipment point inspection personnel, in the equipment point inspection process, the running state of the equipment is detected by the handheld wireless self-diagnosis intelligent sensor, the measurement of the vibration, the temperature and the rotating speed of the equipment is completed by the wireless self-diagnosis intelligent sensor, the vibration measurement data is transmitted to the mobile phone APP monitoring and analyzing software through the low-power Bluetooth, and the point inspection personnel analyze the running state of the equipment and diagnose the equipment faults through the APP monitoring software.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wireless vibration and temperature measurement system based on NB-IoT, includes vibration survey module, temperature measurement module, NB-IoT wireless transmission module, data receiving module, vibration signal acquisition module and temperature signal acquisition module, its characterized in that: the vibration measuring module is electrically connected with the vibration signal collecting module, the vibration signal collecting module is electrically connected with the data receiving module, the temperature measuring module is electrically connected with the temperature signal collecting module, the temperature signal collecting module is electrically connected with the data receiving module, and the data receiving module is electrically connected with the NB-IoT wireless transmission module.

2. The NB-IoT based wireless vibration and temperature measurement system according to claim 1, wherein: the vibration measuring module is internally provided with an acceleration sensor, the acceleration sensor is used for receiving transmitted vibration, a piezoelectric crystal is arranged in the acceleration sensor, the piezoelectric crystal can generate different charge quantities when being subjected to vibration of different degrees, and the acceleration sensor converts transmitted vibration signals into electric signals.

3. The NB-IoT based wireless vibration and temperature measurement system according to claim 1, wherein: the temperature measuring module is internally provided with a temperature sensor used for receiving the transmitted temperature, the temperature sensor is internally provided with a thermistor, the thermistor can generate different resistance values under the temperature conditions of different degrees, and the temperature sensor converts the transmitted temperature signals into electric signals.

4. The NB-IoT based wireless vibration and temperature measurement system according to claim 1, wherein: the vibration signal acquisition unit is used for receiving the electric signal transmitted by the vibration measurement module, and the temperature signal acquisition unit is used for receiving the electric signal transmitted by the temperature measurement module.

5. The NB-IoT based wireless vibration and temperature measurement system according to claim 1, wherein: the data processing module comprises a computer CPU processing unit and a data recording unit, the computer CPU processing unit is used for summarizing electric signals, and the data recording unit is used for recording the change rules of different electric signals in the same period.

6. The NB-IoT based wireless vibration and temperature measurement system according to claim 1, wherein: the NB-IoT wireless transmission module is connected with the cloud data end, the NB-IoT wireless transmission module reflects the temperature and vibration conditions to the cloud data end, and workers monitor the real-time conditions of the site according to the cloud data end information.

7. The NB-IoT based wireless vibration and temperature measurement system according to claim 5, wherein: the data recording unit comprises a timing unit, a data screening unit, a data average value taking unit and a data summarizing unit, the timing unit is used for setting a standard timing period, the timing period can be set by a worker through a computer CPU at will, and the data screening unit is used for screening the maximum data value and the minimum data value.

8. The NB-IoT based wireless vibration and temperature measurement system according to claim 7, wherein: the data average value taking unit is used for calculating the average value of the counted data, and the data summarizing unit is used for drawing the average value of the data into a table and storing the table in the cloud data terminal, so that the data summarizing unit is convenient to call and observe.