CN217470007U - Wireless transmission device and remote monitoring system - Google Patents
Wireless transmission device and remote monitoring system Download PDFInfo
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- CN217470007U CN217470007U CN202221535746.9U CN202221535746U CN217470007U CN 217470007 U CN217470007 U CN 217470007U CN 202221535746 U CN202221535746 U CN 202221535746U CN 217470007 U CN217470007 U CN 217470007U
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Abstract
The application provides a wireless transmission device and a remote monitoring system, relates to the technical field of wireless transmission, and is used for solving the problems of single environmental parameter monitoring and low reliability of remote monitoring at present. The wireless transmission device comprises data acquisition equipment, a controller and a wireless transmission unit, wherein the data acquisition equipment comprises a plurality of data acquisition units, a plurality of voltage conversion units and a plurality of analog-to-digital conversion units; the controller is respectively and electrically connected with the connecting end of each analog-to-digital conversion unit, the input end of the wireless transmission unit and the output end of each analog-to-digital conversion unit, and is used for controlling the analog-to-digital conversion units to convert the preprocessed voltage signals into initial digital signals, receiving the initial digital signals and controlling the wireless transmission units to transmit the initial digital signals to the remote server. The application provides a wireless transmission device and remote monitoring system are used for the scene that needs carry out remote monitoring to a plurality of environmental parameters such as alternating current and direct current, humiture, smog water logging and flame.
Description
Technical Field
The application relates to the technical field of wireless transmission, in particular to a wireless transmission device and a remote monitoring system.
Background
The remote monitoring system is used for monitoring environmental parameters of the communication base station, wherein the environmental parameters comprise alternating current, direct current, temperature, humidity, fire alarm and the like; the management personnel can know the environmental conditions of the base station in time according to the change of each environmental parameter, and the safe operation of the base station is ensured.
In the related art, the remote monitoring system comprises a front-end wireless sensing device and a back-end server, wherein the front-end wireless sensing device is used for acquiring environmental parameters of a base station and sending the environmental parameters to the back-end server.
However, in the remote monitoring system, one front-end wireless sensing device can only monitor one type of environmental parameter, and cannot detect multiple types of environmental parameters simultaneously, and the monitoring function is single.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the embodiments of the present application provide a wireless transmission device and a remote monitoring system, which can monitor multiple types of environmental parameters simultaneously, thereby improving the reliability of the remote monitoring system.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
a first aspect of an embodiment of the present application provides a wireless transmission apparatus, including a data acquisition device, a controller, and a wireless transmission unit; the data acquisition equipment comprises a plurality of data acquisition units, a plurality of voltage conversion units and a plurality of analog-to-digital conversion units, wherein the output end of each data acquisition unit is correspondingly connected with the input end of one voltage conversion unit in series, the output end of each voltage conversion unit is correspondingly connected with the input end of one analog-to-digital conversion unit in series, and the voltage conversion units are used for converting initial voltage signals output by the data acquisition units into preprocessed voltage signals which can be read by the analog-to-digital conversion units; the controller is respectively electrically connected with the connecting end of each analog-to-digital conversion unit, the input end of the wireless transmission unit and the output end of each analog-to-digital conversion unit, and is used for controlling the analog-to-digital conversion units to convert the preprocessed voltage signals into initial digital signals, receiving the initial digital signals sent by the analog-to-digital conversion units and controlling the wireless transmission units to transmit the initial digital signals to a remote server.
In a possible implementation manner, the controller includes a first control unit and a second control unit, the first control unit is electrically connected to a connection end of each analog-to-digital conversion unit, and the first control unit is configured to control the analog-to-digital conversion unit to convert the preprocessed voltage signal into an initial digital signal; the input end of the second control unit is electrically connected with the output end of each analog-to-digital conversion unit, the output end of the second control unit is electrically connected with the input end of the wireless transmission unit, the second control unit is used for converting the initial digital signal into a preprocessing digital signal which can be received by the wireless transmission unit, and the second control unit is also used for controlling the wireless transmission unit to transmit the preprocessing digital signal to a remote server.
In a possible implementation manner, the output end of the second control unit is electrically connected with the input end of the wireless transmission unit through a serial interface.
In a possible implementation manner, the input end of the second control unit is electrically connected with the output end of each analog-to-digital conversion unit through a parallel interface.
In one possible implementation, the voltage conversion unit includes a differential amplifier.
In one possible implementation, the voltage conversion unit includes a single-ended input single-ended output differential amplifier.
In one possible implementation, the controller comprises a field programmable gate array controller.
In one possible implementation, the second control unit includes an embedded processor.
In one possible implementation, the data acquisition unit includes: one of an alternating current sensor, a direct current sensor, a temperature sensor, a humidity sensor, a smoke sensor, a water immersion sensor, a flame sensor, and a force sensor.
The embodiment of the application provides a wireless transmission device, which comprises data acquisition equipment, a controller and a wireless transmission unit; the data acquisition equipment comprises a plurality of data acquisition units, a plurality of voltage conversion units and a plurality of analog-to-digital conversion units, wherein the output end of each data acquisition unit is correspondingly connected with the input end of one voltage conversion unit in series, the output end of each voltage conversion unit is correspondingly connected with the input end of one analog-to-digital conversion unit in series, and the voltage conversion units are used for converting initial voltage signals output by the data acquisition units into preprocessed voltage signals which can be read by the analog-to-digital conversion units; the controller is respectively electrically connected with the connecting end of each analog-to-digital conversion unit, the input end of the wireless transmission unit and the output end of each analog-to-digital conversion unit, and is used for controlling the analog-to-digital conversion units to convert the preprocessed voltage signals into initial digital signals, receiving the initial digital signals sent by the analog-to-digital conversion units and controlling the wireless transmission units to transmit the initial digital signals to the remote server. The voltage signals acquired by different data acquisition units are converted into preprocessed voltage signals in the voltage signal swing amplitude of the analog-to-digital conversion unit, so that the analog-to-digital conversion unit can read the voltage signals output by various different types of data acquisition units, the purpose of simultaneously monitoring various environmental parameters is achieved, and the reliability of the remote monitoring system is improved.
Furthermore, the initial digital signal is transmitted to the remote server through the wireless transmission unit, so that monitoring can be realized in areas with complicated and severe natural geographic environments, such as remote areas, remote mountain areas and the like.
A second aspect of embodiments of the present application provides a remote monitoring system comprising a wireless transmission device as set forth above.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the embodiments or the prior art, and obviously, the drawings in the following description are some examples of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless transmission device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a voltage conversion unit and an analog-to-digital conversion unit according to an embodiment of the present application.
Description of the reference numerals:
100: a data acquisition device;
101: a data acquisition unit; 102: a voltage conversion unit; 103: an analog-to-digital conversion unit;
200: a controller;
201: a first control unit; 202: a second control unit;
300: and a wireless transmission unit.
Detailed Description
As described in the background art, the remote monitoring system in the related art has a problem of single monitoring function, and as found by research of technicians, the problem occurs because the remote monitoring system includes a front-end wireless sensing device, a device processor, and a back-end server, the front-end wireless sensing device is used for acquiring various environmental parameters and outputting the environmental parameters in the form of voltage signals; the device processor is used for converting the voltage signal output by the front-end wireless sensing device into a digital signal and wirelessly transmitting the digital signal to the rear-end server, so that remote monitoring is realized. However, different front-end wireless sensing devices have different voltage signal output ranges, and for a front-end wireless sensing device with a larger voltage signal output range, the device processor cannot be matched with the front-end wireless sensing device, that is, the voltage signal swing of the front-end wireless sensing device is not matched with the voltage signal swing of the device processor, and the device processor cannot receive and convert the voltage signal output by the front-end wireless sensing device; the front-end wireless sensing equipment can only monitor one type of environmental parameters, cannot detect multiple types of environmental parameters simultaneously, and is single in monitoring function.
In view of the above technical problems, an embodiment of the present application provides a wireless transmission device, which converts voltage signals acquired by different data acquisition units into preprocessed voltage signals within a voltage signal swing range of an analog-to-digital conversion unit through a voltage conversion unit, so that the analog-to-digital conversion unit can receive voltage signals output by various different types of data acquisition units, convert the voltage signals into digital signals, and wirelessly transmit the digital signals to a remote server, thereby achieving the purpose of detecting various types of environmental parameters and improving the reliability of a remote monitoring system.
In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, embodiments of the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the present application and not all 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 application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a wireless transmission device according to an embodiment of the present disclosure; the wireless transmission apparatus includes a data acquisition device 100, a controller 200, and a wireless transmission unit 300.
The data acquisition device 100 includes a data acquisition unit 101, a voltage conversion unit 102, and an analog-to-digital conversion unit 103, where the data acquisition unit 101 is configured to acquire different environmental parameters, such as: alternating current, direct current, temperature, humidity, smoke sensation, water immersion, fire sensation or door control and the like, and outputting the environmental parameters in the form of initial voltage signals; the output end of the data acquisition unit 101 is connected in series with the input end of the voltage conversion unit 102, the output end of the voltage conversion unit 102 is connected in series with the input end of the analog-to-digital conversion unit 103, and the voltage conversion unit 102 is used for receiving an initial voltage signal output by the data acquisition unit 101, converting the initial voltage signal into a preprocessed voltage signal which can be read by the analog-to-digital conversion unit 103, and then outputting the preprocessed voltage signal; the analog-to-digital conversion unit 103 is configured to receive the preprocessed voltage signal output by the voltage conversion unit 102, convert the preprocessed voltage signal into an initial digital signal, and output the initial digital signal.
That is to say, different types of data acquisition units 101 acquire different environmental parameters, the different types of data acquisition units 101 have different voltage signal swing amplitudes, and when the voltage signal swing amplitude output by the data acquisition unit 101 is not matched with the voltage signal swing amplitude of the analog-to-digital conversion unit 103, the analog-to-digital conversion unit 103 cannot receive and process the initial voltage signal; the voltage conversion unit 102 can convert the initial voltage signal output by the data acquisition unit 101 into a preprocessed voltage signal, and the preprocessed voltage signal is within a voltage signal swing of the analog-to-digital conversion unit 103, so that the analog-to-digital conversion unit 103 can read the preprocessed voltage signal.
The controller 200 is electrically connected to the connection terminal of the analog-to-digital conversion unit 103, and the controller 200 is configured to control the analog-to-digital conversion unit 103 to convert the preprocessed voltage signal into an initial digital signal.
The controller 200 is further electrically connected to both the output end of the analog-to-digital conversion unit 103 and the input end of the wireless transmission unit 300, and the controller 200 is configured to receive the initial digital signal output by the analog-to-digital conversion unit 103 and send the initial digital signal to the wireless transmission unit 300; the controller 200 also serves to control the wireless transmission unit 300 to transmit the initial digital signal to a remote server (or a remote terminal).
The data acquisition device 100 may further include a plurality of data acquisition units 101, a plurality of voltage conversion units 102, and a plurality of analog-to-digital conversion units 103, wherein an output terminal of each data acquisition unit 101 is correspondingly connected in series with an input terminal of one voltage conversion unit 102, and an output terminal of each voltage conversion unit 102 is correspondingly connected in series with an input terminal of one analog-to-digital conversion unit 103, so that the data acquisition device 100 may simultaneously acquire various different types of environmental parameters. At this time, the controller 200 is electrically connected to the connection terminal of each analog-to-digital conversion unit 103 and the output terminal of each analog-to-digital conversion unit 103, and the controller 200 is configured to simultaneously control the plurality of analog-to-digital conversion units 103 to perform voltage signal and digital signal conversion.
Therefore, the wireless transmission device of the embodiment of the present application includes a data acquisition device 100, a controller 200, and a wireless transmission unit 300; the data acquisition device 100 comprises a plurality of data acquisition units 101, a plurality of voltage conversion units 102 and a plurality of analog-to-digital conversion units 103, wherein the output end of each data acquisition unit 101 is correspondingly connected with the input end of one voltage conversion unit 102 in series, the output end of each voltage conversion unit 102 is correspondingly connected with the input end of one analog-to-digital conversion unit 103 in series, and the voltage conversion units 102 are used for converting initial voltage signals output by the data acquisition units 101 into preprocessed voltage signals which can be read by the analog-to-digital conversion units 103; the controller 200 is electrically connected to the connection terminal of each analog-to-digital conversion unit 103, the input terminal of the wireless transmission unit 300, and the output terminal of each analog-to-digital conversion unit 103, respectively, and the controller 200 is configured to control the analog-to-digital conversion unit 103 to convert the preprocessed voltage signal into an initial digital signal, receive the initial digital signal, and control the wireless transmission unit 300 to transmit the initial digital signal to a remote server. The voltage signals acquired by different data acquisition units 101 are converted into the preprocessed voltage signals within the voltage signal swing of the analog-to-digital conversion unit 103, so that the analog-to-digital conversion unit 103 can read the voltage signals output by various different types of data acquisition units 101, the problem that monitoring cannot be realized due to the large voltage signal output range of a certain type of data acquisition unit 101 is solved, the purpose of simultaneously monitoring various types of environmental parameters is achieved, and the reliability of a remote monitoring system is improved. Meanwhile, the initial digital signal is transmitted to the remote server through the wireless transmission unit 300, so that monitoring can be realized in areas with complicated and severe natural geographic environments, such as remote areas, remote mountain areas and the like.
It should be noted that the data acquisition unit 101 may include: one of an alternating current sensor, a direct current sensor, a temperature sensor, a humidity sensor, a smoke sensor, a water immersion sensor, a flame sensor and a force sensor; the alternating current sensor is used for acquiring alternating current of one device of the communication base station; the direct current sensor is used for acquiring direct current of one device of the communication base station; the temperature sensor is used for acquiring the temperature of one device of the communication base station, so that the potential safety hazard caused by overheating of the temperature is avoided; the humidity sensor is used for acquiring the humidity of one area of the communication base station; the smoke sensor is used for acquiring smoke induction of one area of the communication base station, so that the safety of the communication base station is ensured; the water immersion sensor is used for acquiring whether water immersion of one area or one device of the communication base station meets requirements or not, and the safety of the communication base station is ensured; the flame sensor is used for acquiring whether accidents such as fire disasters occur in one area of the communication base station or not, so that the safety of the communication base station is ensured; the force sensor is used for acquiring the entrance guard of one of the areas of the communication base station, and the safety of the communication base station is ensured.
In this embodiment, the controller 200 may include a first control unit 201, the first control unit 201 is electrically connected to the connection end of each analog-to-digital conversion unit 103, and the first control unit 201 is configured to control the analog-to-digital conversion unit 103, so that the analog-to-digital conversion unit 103 converts the preprocessed voltage signal into an initial digital signal.
The controller 200 may further include a second control unit 202, an input end of the second control unit 202 is electrically connected to an output end of each analog-to-digital conversion unit 103, an output end of the second control unit 202 is electrically connected to an input end of the wireless transmission unit 300, and the second control unit 202 is configured to receive an initial digital signal output by the analog-to-digital conversion unit 103, convert the initial digital signal into a preprocessed digital signal that can be received by the wireless transmission unit 300, and output the preprocessed digital signal; the second control unit 202 is also used to control the wireless transmission unit 300 to transmit the received preprocessed digital signals to a remote server.
That is, the second control unit 202 needs to perform format conversion on the initial digital signal obtained by the conversion performed by the analog-to-digital conversion unit 103, so that the format conversion meets the requirement of the wireless transmission unit 300, and the efficiency of wireless transmission is improved.
In the above embodiment of the present application, the controller 200 may include a Field Programmable Gate Array (FPGA) controller; the FPGA divides the frequency of the system clock by its powerful digital logic hardware resources to obtain the sampling frequency of the data acquisition required by the analog-to-digital conversion unit 103, thereby controlling the analog-to-digital conversion of the analog-to-digital conversion unit 103.
The second control unit 202 may include an embedded processor, specifically a Nios-II series soft-core processor; that is, a Nios-II processor is called inside the FPGA, and the Nios-II processor is used to perform format conversion on data (initial digital signal) input to the FPGA, so that the converted preprocessed digital signal meets the requirements of the wireless transmission unit 300; the Nios-II processor is also used for driving the wireless transmission unit 300, so that the wireless transmission unit 300 transmits the received preprocessed digital signal to a remote server; and the Nios-II processor is called in the FPGA, so that the wireless transmission efficiency can be improved, and the upgrading and updating can be facilitated.
In the embodiment of the present application, the wireless transmission unit 300 may include NB-IoT (Narrow Band Internet of Things, NB-IoT for short), which has the advantages of wide coverage area, high reliability, high security level, low cost, low power consumption, and the like, and not only can reduce the monitoring cost, but also can implement various intelligent management.
In the above embodiment of the application, NB-IoT may be mobile communication BC 95-B8, which has high performance and low power consumption, and has a size of 23.6mm × 19.9mm × 2.2mm, so that the requirement of a terminal device on a small-sized module product can be met to the maximum extent, the product size can be effectively reduced, and the product cost can be optimized.
In addition, for the NB-IoT in the above embodiment, an independent single Chip microcomputer Chip is used to implement control, the single Chip microcomputer Chip is integrated inside the FPGA by using an SOC (System-on-a-Chip) technology, and the Nios-II processor implements NB-IoT control; the integration level of the equipment is improved, the hardware design of the system is simplified, and the volume of the equipment is reduced.
In the embodiment of the present application, the output end of the second control unit 202 is electrically connected to the input end of the wireless transmission unit 300 through a serial interface; that is, the second control unit 202 converts the initial digital signal into a preprocessed digital signal that can be received by the wireless transmission unit 300, and then transmits the preprocessed digital signal to the wireless transmission unit 300 through the serial interface, and further transmits the preprocessed digital signal to a remote server or a data receiving terminal through a wireless network.
In the embodiment of the present application, the input end of the second control unit 202 is electrically connected to the output end of each analog-to-digital conversion unit 103 through a parallel interface.
Referring to fig. 2, fig. 2 is a schematic structural diagram of the voltage conversion unit 102 and the analog-to-digital conversion unit 103; in the embodiment of the present application, the voltage conversion unit 102 may include a differential amplifier, and the analog-to-digital conversion unit 103 may include an a/D converter (ADC); because the output voltage signals of various data acquisition units (sensors) have a large variation range and are usually not in the input voltage signal swing range of the A/D converter, the differential amplifier can enable the analog voltage signals output by the sensors to be matched with the input voltage signal swing required by the A/D converter.
The voltage conversion unit 102 may include a differential amplifier AD9220, where the differential amplifier AD9220 includes an operational amplifier and five resistors with the same resistance value, and is configured to convert an initial voltage signal with a voltage conversion range of-10V to +10V into a preprocessed voltage signal with a voltage conversion range of 0V to 5V, so as to adapt to the requirement of an input voltage signal swing of the a/D converter.
V shown in FIG. 2 A The reference voltage is used for providing accurate direct-current voltage input for the voltage conversion unit 102 to generate stable and accurate 4.096V voltage; meanwhile, the reference voltage is also used for providing the reference voltage for the A/D converter; in this case, a non-inverting input ratio device with a gain of 6/5 is formed, and the OUT leg output is (obtained using the superposition theorem):
wherein u is o Is the output value of the OUT pin, u, in FIG. 2 + Is the voltage at the equidirectional input terminal of the operational amplifier in FIG. 2, V IN Is the output signal (initial voltage signal) from the sensor in fig. 2.
When V is IN At 0V, u o Is 2.048V when V IN At 10V, u o Is 4.048V when V IN at-10V, u o Is 0.048V, thereby realizing voltage conversion.
In the above embodiments of the present application, the voltage converting unit 102 includes a single-ended input single-ended output differential amplifier.
The embodiment of the application also provides a remote monitoring system, which comprises a remote server and the wireless transmission device set forth above.
To sum up, the embodiment of the present application provides a wireless transmission device, which includes a data acquisition device 100, a controller 200, and a wireless transmission unit 300; the data acquisition device 100 comprises a plurality of data acquisition units 101, a plurality of voltage conversion units 102 and a plurality of analog-to-digital conversion units 103, wherein the output end of each data acquisition unit 101 is correspondingly connected with the input end of one voltage conversion unit 102 in series, the output end of each voltage conversion unit 102 is correspondingly connected with the input end of one analog-to-digital conversion unit 103 in series, and the voltage conversion units 102 are used for converting initial voltage signals output by the data acquisition units 101 into preprocessed voltage signals which can be read by the analog-to-digital conversion units 103; the controller 200 is electrically connected to the connection terminal of each analog-to-digital conversion unit 103, the input terminal of the wireless transmission unit 300, and the output terminal of each analog-to-digital conversion unit 103, respectively, and the controller 200 is configured to control the analog-to-digital conversion unit 103 to convert the preprocessed voltage signal into an initial digital signal, receive the initial digital signal, and control the wireless transmission unit 300 to transmit the initial digital signal to a remote server. The voltage signals acquired by different data acquisition units 101 are converted into the preprocessed voltage signals within the voltage signal swing of the analog-to-digital conversion unit 103, so that the analog-to-digital conversion unit 103 can read the voltage signals output by various different types of data acquisition units 101, the problem that monitoring cannot be realized due to the large voltage signal output range of a certain type of data acquisition unit 101 is solved, the purpose of simultaneously monitoring various types of environmental parameters is achieved, and the reliability of a remote monitoring system is improved.
Further, the initial digital signal is transmitted to the remote server through the wireless transmission unit 300, so that monitoring can be realized in areas with complicated and severe natural geographic environments, such as remote areas and remote mountain areas.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
In general, terms should be understood at least in part by their use in context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the singular or may be used to describe a combination of features, structures, or characteristics in the plural, depending, at least in part, on the context. Similarly, terms such as "a" or "the" may also be understood to convey a singular use or to convey a plural use, depending, at least in part, on the context.
It should be readily understood that "on … …", "above … …" and "above … …" in this disclosure should be interpreted in its broadest sense such that "on … …" means not only "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above … …" or "above … …" includes not only the meaning of "above something" or "above" but also includes the meaning of "above something" or "above" with no intervening features or layers therebetween (i.e., directly on something).
Furthermore, spatially relative terms, such as "below," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's illustrated relationship to another element or feature. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly as well.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A wireless transmission device is characterized by comprising data acquisition equipment, a controller and a wireless transmission unit;
the data acquisition equipment comprises a plurality of data acquisition units, a plurality of voltage conversion units and a plurality of analog-to-digital conversion units, wherein the output end of each data acquisition unit is correspondingly connected with the input end of one voltage conversion unit in series, the output end of each voltage conversion unit is correspondingly connected with the input end of one analog-to-digital conversion unit in series, and the voltage conversion units are used for converting initial voltage signals output by the data acquisition units into preprocessed voltage signals which can be read by the analog-to-digital conversion units;
the controller is respectively electrically connected with the connecting end of each analog-to-digital conversion unit, the input end of the wireless transmission unit and the output end of each analog-to-digital conversion unit, and is used for controlling the analog-to-digital conversion units to convert the preprocessed voltage signals into initial digital signals, receiving the initial digital signals sent by the analog-to-digital conversion units and controlling the wireless transmission units to transmit the initial digital signals to a remote server.
2. The wireless transmission device according to claim 1, wherein the controller includes a first control unit and a second control unit, the first control unit is electrically connected to the connection terminal of each analog-to-digital conversion unit, and the first control unit is configured to control the analog-to-digital conversion unit to convert the preprocessed voltage signal into an initial digital signal;
the input end of the second control unit is electrically connected with the output end of each analog-to-digital conversion unit, the output end of the second control unit is electrically connected with the input end of the wireless transmission unit, the second control unit is used for converting the initial digital signal into a preprocessing digital signal which can be received by the wireless transmission unit, and the second control unit is also used for controlling the wireless transmission unit to transmit the preprocessing digital signal to a remote server.
3. The wireless transmission device according to claim 2, wherein the output terminal of the second control unit is electrically connected to the input terminal of the wireless transmission unit via a serial interface.
4. The wireless transmission apparatus according to claim 2, wherein the input terminal of the second control unit is electrically connected to the output terminal of each of the analog-to-digital conversion units via a parallel interface.
5. The wireless transmission device according to claim 1, wherein the voltage conversion unit includes a differential amplifier.
6. The wireless transmission apparatus according to claim 5, wherein the voltage conversion unit comprises a single-ended input single-ended output differential amplifier.
7. The wireless transmission apparatus of claim 2, wherein the controller comprises a field programmable gate array controller.
8. The wireless transmission apparatus of claim 7, wherein the second control unit comprises an embedded processor.
9. The wireless transmission apparatus according to claim 1, wherein the data acquisition unit comprises: one of an alternating current sensor, a direct current sensor, a temperature sensor, a humidity sensor, a smoke sensor, a water immersion sensor, a flame sensor, and a force sensor.
10. A remote monitoring system comprising a wireless transmission device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202221535746.9U CN217470007U (en) | 2022-06-17 | 2022-06-17 | Wireless transmission device and remote monitoring system |
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| CN202221535746.9U CN217470007U (en) | 2022-06-17 | 2022-06-17 | Wireless transmission device and remote monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116824824A (en) * | 2023-01-28 | 2023-09-29 | 太原杰安易科技有限公司 | Wireless signal acquisition and transmission system based on node controller for coal dressing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116824824A (en) * | 2023-01-28 | 2023-09-29 | 太原杰安易科技有限公司 | Wireless signal acquisition and transmission system based on node controller for coal dressing |
| CN116824824B (en) * | 2023-01-28 | 2023-11-21 | 太原杰安易科技有限公司 | Wireless signal acquisition and transmission system based on node controller for coal dressing |
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