A wireless transmission system that provides power and data to sensors by reducing the number of cables

Abstract

A wireless transmission system that provides power and data to sensors by reducing the number of cables is described. The system includes sensor nodes for monitoring data collection and conversion, data management and processing, and responding to task requests from aggregation nodes and controlling the nodes; a hub for communicating data with the sensor nodes and providing wireless power to the sensor nodes; a central server for communicating data with the hub; and a protective mechanism for protecting the sensor nodes to improve monitoring stability. Compared to existing technologies, the present invention utilizes a base and a ring to buffer external pressure, ensuring that the gas sensor remains stable when subjected to external forces. Furthermore, gas can freely enter and exit the protective mechanism without affecting the sensor's monitoring, ensuring accurate monitoring and improving monitoring stability.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to a wireless transmission system that can provide power and data for sensors by reducing the number of cables. Background Art

[0002] At present, common graphene gas sensors are easily squeezed and damaged when encountering external forces, which in turn affects the monitoring stability and service life of the graphene gas sensors, causing considerable economic losses and great inconvenience to users. The existing sensor protection structure requires a shell to be set outside the sensor to form a relatively closed space to reduce the impact of external forces. However, such a protective device will affect the monitoring accuracy of the gas sensor and has poor practicality. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for protecting a gas sensor while ensuring the monitoring accuracy of the gas sensor.

[0004] The technical solution of the present invention is: a wireless transmission system that can provide power and data to sensors by reducing the number of cables, including sensor nodes for monitoring data collection and conversion, data management and processing, responding to task requests from aggregation nodes and node control;

[0005] a hub, configured to communicate data with the sensor nodes and provide wireless power to the sensor nodes;

[0006] a central server, configured to communicate data with the hub;

[0007] The protection mechanism is used to protect the sensor node to improve the stability of the sensor node monitoring.

[0008] Preferably, the protection mechanism comprises a base fixedly connected to the bottom of the sensor node, a ring body with both ends respectively fixed to the base and consisting of a pressure-resistant portion and reinforcement ribs, and the pressure-resistant portion and the reinforcement ribs are arranged at intervals.

[0009] Preferably, the anti-pressure part includes a base plate connecting adjacent reinforcing ribs, an anti-pressure plate arranged on the upper side of the base plate, a longitudinal spring connecting the anti-pressure plate and the base plate, extrusion grooves symmetrically opened at both ends of the anti-pressure plate along the length extension direction of the anti-pressure plate, a transverse spring with one end fixed in the extrusion groove, and a slide plate connecting the transverse spring and the reinforcing ribs. The number of the longitudinal springs is at least two, and they are symmetrically arranged between the anti-pressure plate and the base plate.

[0010] Preferably, the end of the ring body is provided with an extension section extending into the interior of the base, the end of the extension section is provided with a reinforcement rod, the reinforcement rod includes an inclined section connected to the extension section and a longitudinal section provided at the end of the inclined section, an angle a is formed between the inclined section and the longitudinal section, wherein 120° <a<140°。

[0011] Preferably, there are at least three ring bodies, which are staggered along the edge of the base.

[0012] Preferably, the axial projection of the ring body has an angle b, wherein 30° <b<60°。

[0013] Preferably, the sensor node includes a graphene sensor, a processing unit connected to the graphene sensor, a communication unit connected to the processing unit, and a power supply for providing power to the graphene sensor, the processing unit, and the communication unit.

[0014] The beneficial effects of the present invention are:

[0015] Compared with the existing technology, the present invention buffers the external pressure by setting a base and a ring body, so that the gas sensor remains stable when subjected to external force impact. At the same time, gas can freely enter and exit the protective mechanism without affecting the monitoring of the sensor at all, thereby ensuring the monitoring accuracy of the gas sensor and improving the stability of the gas sensor monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the workflow of the present invention;

[0017] Figure 2 Schematic diagram of the protection mechanism structure;

[0018] Figure 3 It is a top view of the protective mechanism;

[0019] Figure 4 Schematic diagram of the compression part structure; DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings using embodiments.

[0021] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0022] Examples, such as Figure 1-4As shown, a wireless transmission system that can provide power and data to sensors by reducing the number of cables includes a sensor node 1 for collecting and converting monitoring data, managing and processing data, responding to task requests from a sink node, and controlling the node;

[0023] The hub 2 is used to communicate data with the sensor node 1 and provide wireless power to the sensor node 1. The hub 2 will operate at one or more frequencies to provide wireless power to the sensor node 1. In this embodiment, the frequency used by the hub 2 is 5.8 GHz.

[0024] A central server 3, configured to communicate data with the hub 2;

[0025] The protection mechanism 4 is used to protect the sensor node 1 to improve the monitoring stability of the sensor node 1 .

[0026] Further, such as Figure 2 As shown, the protective mechanism 4 includes a base 401 fixedly connected to the bottom of the sensor node 1, and a ring body 402 whose two ends are respectively fixed to the base 401 and composed of a pressure-resistant part 403 and a reinforcing rib 404. The pressure-resistant part 403 and the reinforcing rib 404 are arranged at intervals. The ring body 402 can buffer the external impact force. At the same time, the area enclosed by the ring body 402 and the base 401 is connected to the external environment, which can ensure that the gas can freely enter and exit the protective mechanism 4, thereby ensuring the monitoring accuracy of the gas sensor and improving the stability of the gas sensor monitoring.

[0027] Further, such as Figure 4 As shown, the anti-pressure portion 403 includes a base plate 4031 connecting adjacent reinforcing ribs 404, an anti-pressure plate 4032 provided on the upper side of the base plate 4031, a longitudinal spring 4033 connecting the anti-pressure plate 4032 and the base plate 4031, an extrusion groove 4034 symmetrically provided at both ends of the anti-pressure plate 4032 along the length extension direction of the anti-pressure plate 4032, a transverse spring 4035 with one end fixed in the extrusion groove 4034, and a slide plate 4036 connecting the transverse spring 4035 and the reinforcing rib 404. There are at least two of them, and they are symmetrically arranged between the anti-pressure plate 4032 and the base plate 4031. After being subjected to force, the anti-pressure plate 4032 moves toward the base plate 4031, and the longitudinal spring 4033 buffers the force. At the same time, the transverse spring 4035 is squeezed by the slide plate 4036, converting the longitudinal force into transverse force, and transmitting the force to the adjacent anti-pressure part 403 through the adjacent reinforcing ribs 404. After being buffered by multiple anti-pressure parts 403, the impact on the gas sensor can be effectively reduced, providing effective protection for the gas sensor, and improving the stability of gas sensor monitoring.

[0028] Further, such as Figure 2As shown, an extension section 405 extending into the interior of the base 401 is provided at the end of the annular body 402. A reinforcing rod 5 is provided at the end of the extension section 405. The reinforcing rod 5 includes an inclined section 501 connected to the extension section 405 and a longitudinal section 502 provided at the end of the inclined section 501. An included angle a is formed between the inclined section 501 and the longitudinal section 502, where 120° < a < 140°. The presence of the reinforcing rod 5 can reinforce the connection between the annular body 402 and the base 401, prevent the annular body 402 from tilting after being stressed, and improve the protection effect on the gas sensor.

[0029] Preferably, as Figure 3 shown, the number of the annular bodies 402 is at least three, and they are arranged staggeredly along the edge of the base 401. Preferably, the multiple annular bodies 402 are stacked layer by layer from top to bottom.

[0030] Preferably, as Figure 3 shown, the axial projection of the annular body 402 has an included angle b, where 30°

[0031] < b < 60°.

[0032] Furthermore, as Figure 1 shown, the sensor node 1 includes a graphene sensor 101, a processing unit 102 connected to the graphene sensor 101, a communication unit 103 connected to the processing unit 102, and a power source 104 for supplying power to the graphene sensor 101, the processing unit 102, and the communication unit 103. Preferably, the graphene sensor 101 in this embodiment is a gas sensor. The sensor node 1 in this embodiment further includes a connector for charging or an antenna that can be used to obtain wireless power from a power source.

Claims

1. A wireless transmission system that can provide power and data to sensors by reducing the number of cables, characterized by: It includes sensor nodes (1) for collecting and converting monitoring data, managing and processing data, responding to task requests from aggregation nodes, and controlling nodes; A hub (2) for performing data communication with the sensor node (1) and providing wireless power to the sensor node (1); A central server (3) for communicating data with the hub (2); A protection mechanism (4) for protecting the sensor node (1) to improve the stability of monitoring by the sensor node (1); The protection mechanism (4) comprises a base (401) fixedly connected to the bottom of the sensor node (1), a ring body (402) having two ends respectively fixedly connected to the base (401) and consisting of a pressure-resistant portion (403) and a reinforcing rib (404), wherein the pressure-resistant portion (403) and the reinforcing rib (404) are arranged at intervals; The anti-pressure portion (403) comprises a base plate (4031) connecting adjacent reinforcing ribs (404), an anti-pressure plate (4032) provided on the upper side of the base plate (4031), a longitudinal spring (4033) connecting the anti-pressure plate (4032) and the base plate (4031), an extrusion groove (4034) symmetrically provided at both ends of the anti-pressure plate (4032) along the length extension direction of the anti-pressure plate (4032), a transverse spring (4035) with one end fixed in the extrusion groove (4034), and a slide plate (4036) connecting the transverse spring (4035) and the reinforcing rib (404), and the number of the longitudinal springs (4033) is at least two, and they are symmetrically provided between the anti-pressure plate (4032) and the base plate (4031); The sensor node (1) comprises a graphene sensor (101), a processing unit (102) connected to the graphene sensor (101), a communication unit (103) connected to the processing unit (102), and a power supply (104) for providing power to the graphene sensor (101), the processing unit (102), and the communication unit (103).

2. The wireless transmission system according to claim 1, which can provide power and data to sensors by reducing the number of cables, is characterized in that: An extension section (405) extending into the interior of the base (401) is provided at the end of the ring body (402), and a reinforcing rod (5) is provided at the end of the extension section (405). The reinforcing rod (5) comprises an inclined section (501) connected to the extension section (405) and a longitudinal section (502) provided at the end of the inclined section (501). An angle a is formed between the inclined section (501) and the longitudinal section (502), wherein 120° <a<140°。 3. The wireless transmission system according to claim 1, which can provide power and data to sensors by reducing the number of cables, is characterized in that: The number of the ring bodies (402) is at least three, and they are staggered along the edge of the base (401).

4. The wireless transmission system according to claim 3, which can provide power and data to sensors by reducing the number of cables, is characterized in that: The axial projection of the ring body (402) has an angle b, wherein 30° <b<60°。

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