CN210348778U

CN210348778U - Sending, receiving and monitoring device for force sensor collecting signals

Info

Publication number: CN210348778U
Application number: CN201921052648.8U
Authority: CN
Inventors: 陈健; 吴衡兵
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-17
Anticipated expiration: 2029-07-05

Abstract

The utility model relates to a force transducer gathers transmission and receiving and monitoring device of signal, including BLU communication transmission module, RS485 interface module, cell-phone terminal module and BLU panel module, wherein the external signal that the force transducer gathered carries out the level matching through RS485 interface module, the signal transmission of RS485 interface module output to BLU communication transmission module, the signal of BLU communication transmission module output sends for cell-phone terminal module, cell-phone terminal module also sends the signal and passes BLU communication transmission module, and send force transducer through RS485 interface module, BLU panel module is BLU communication transmission module and RS485 interface module power supply. The utility model discloses can solve the unstable problem of signal wireless transmission, and the user can be abnormal whether by real time monitoring force transducer acquisition signal.

Description

Sending, receiving and monitoring device for force sensor collecting signals

Technical Field

The utility model relates to a send and receive and monitoring device of signal, especially a send and receive and monitoring device of force sensor acquisition signal belong to force sensor acquisition signal's send and receive and monitoring device's innovation technique.

Background

The traditional transmission scheme for acquiring signals by the force sensor is generally transmitted by a USB (universal serial bus), an RS232, a serial port and the like, and the traditional modes have strong limitations and can be realized only by a wired line, so that low-cost wireless transmission cannot be performed; in the conventional wireless communication, since the electromagnetic wave is easily interfered by many factors, such as the blockage of obstacles, weather conditions, etc., during the transmission process, the conventional wireless communication has inherent unreliability during the data transmission process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to consider above-mentioned problem and provide a force transducer acquisition signal's transmission and receiving and monitoring device. The utility model discloses can solve the unstable problem of signal wireless transmission, and the user can be abnormal whether by real time monitoring force transducer acquisition signal.

The technical scheme of the utility model is that: the utility model discloses a send and receive and monitoring device of force sensor collection signal, including BLU communication transmission module, RS485 interface module, cell-phone terminal module and BLU panel module, wherein the external signal that the force sensor gathered carries out the level through RS485 interface module and matches, the signal transmission of RS485 interface module output to BLU communication transmission module, the signal of BLU communication transmission module output sends for cell-phone terminal module, cell-phone terminal module also signals and passes BLU communication transmission module, and send the force sensor through RS485 interface module, BLU panel module is BLU communication transmission module and RS485 interface module power supply.

The utility model discloses the signal of gathering force transducer passes through RS485 interface module and transmits for BLU communication transmission module, and rethread mobile phone terminal module carries out the information interaction with RS485 interface module, can solve the unstable problem of signal wireless transmission, and the user can be through mobile phone terminal module real time monitoring force transducer collection signal whether unusual. The utility model discloses can be applied to intelligent house, industrial control to and fields such as environmental monitoring, be a design benefit, convenient and practical's force transducer gathers the send-receiver and the monitoring device of signal.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

fig. 2 is a schematic diagram of a specific structure of the BLU communication transmission module according to the present invention;

fig. 3 is a schematic diagram of the specific structure of each module of the present invention.

Detailed Description

Example (b):

the utility model discloses a schematic structure is shown in fig. 1, the utility model discloses a force transducer gathers transmission and monitoring device of signal, including BLU communication transmission module, RS485 interface module, cell-phone terminal module and BLU panel module, wherein the external signal that the force transducer gathered carries out the level through RS485 interface module and matches, the signal transmission of RS485 interface module output to BLU communication transmission module, the signal of BLU communication transmission module output sends for cell-phone terminal module, cell-phone terminal module also sends the signal and passes for BLU communication transmission module, and send the force transducer through RS485 interface module, BLU panel module is the power supply of BLU communication transmission module and RS485 interface module.

In this embodiment, the BLU communication transmission module includes a radio frequency front end amplification circuit and a radio frequency communication circuit, where the radio frequency communication circuit includes a microprocessor and an RF transceiver, the force sensor collects external signals and performs level matching through the RS485 interface module, the signals output by the RS485 interface module are transmitted to the radio frequency front end amplification circuit in the BLU communication transmission module, the radio frequency front end amplification circuit performs noise reduction, filtering and amplification on the signals collected by the force sensor and outputs the signals to the microprocessor in the radio frequency communication circuit, the signals output by the microprocessor are sent to the mobile phone terminal module by the RF transceiver, the mobile phone terminal module also sends out signals and transmits the signals to the microprocessor through the RF collector, the signals processed by the microprocessor are output to the radio frequency front end amplification circuit, and the signals processed by the radio frequency front end amplification circuit are transmitted to the force sensor through the RS485 interface module.

In this embodiment, the microprocessor is of a type CC 2541. The radio frequency front-end amplifying circuit can be an existing conventional radio frequency front-end amplifying circuit.

The RS485 interface module comprises a MAX485 level conversion chip and an interface circuit, and the MAX485 level conversion chip is connected with the BLU communication transmission module through the interface circuit. The interface circuit can be an existing conventional interface circuit.

The MAX485 level conversion chip converts the level of a data signal to be transmitted, which is output by the force sensor, into a level matched with the microprocessor, the signal processed by the MAX485 level conversion chip is transmitted to a radio frequency front end amplification circuit in the BLU communication transmission module through an interface circuit, the radio frequency front end amplification circuit performs noise reduction, filtering and amplification on the signal and outputs the signal to the microprocessor in the radio frequency communication circuit, the signal output by the microprocessor is sent to the mobile phone terminal module by the RF transceiver, meanwhile, the data signal to be received, which is sent by the mobile phone terminal module, is sent to the microprocessor through the RF collector, the microprocessor outputs the level matched with the force sensor to the radio frequency front end amplification circuit, and the signal processed by the radio frequency front end amplification circuit is sent to the force sensor through the RS485 interface; the interface circuit is used for providing a transmission interface for the data signal to be transmitted and the data signal to be received.

In this embodiment, the RS485 interface module uses a shielded twisted pair for transmission. The BLU battery panel module comprises a battery panel and an interface, and the battery panel supplies power to the BLU communication transmission module and the RS485 interface module through the interface.

In this embodiment, the force sensor is a force sensor designed using an aluminum alloy.

The utility model discloses a force transducer gathers signal's transmission and receiving and monitoring device considers the BLU technique to be a short distance, the wireless network technique of low-power consumption, low complexity, and the BLU is the bluetooth low energy, compares in classic bluetooth, and it has done degree of depth optimization in the aspect of low cost, low bandwidth, low-power consumption and low complexity. The bluetooth alliance has considered the inherent uncertainty of this data transmission process when formulating the bluetooth 4.0 specification, which is more robust than zigbee, WiFi. The method can be applied to the fields of modern monitoring, digital families, environmental monitoring and the like. Furthermore, the utility model discloses a force transducer gathers signal's transceiver and monitoring device considers that the RS485 interface has good anti-noise interference ability, transmission distance advantage such as long and multiple spot communication, therefore becomes the serial interface of first-selected. The RS485 interface adopts a half-duplex communication mode, and generally only needs two connecting wires, so that the RS485 interface adopts a shielded twisted pair line for transmission, the signal transmission adopts a point-to-point mode, and one serial port can only be connected with one peripheral, so that the transmission safety can be further improved, and the confidentiality is further enhanced.

The utility model discloses the signal of gathering force transducer passes through RS485 interface module and transmits for BLU communication transmission module, carries out the information interaction through mobile terminal module and BLU communication transmission module at last. The utility model discloses can be further integrated with whole device, make its dampproofing dustproof effect obvious to be applicable to the operational environment of various complicacies. Meanwhile, the utility model discloses can realize wireless transmission and wired transmission's free conversion for the transmission of signal is more polybasic, waves wired transmission's stability and wireless transmission's convenience from the distribution. And the change of signal conversion can be monitored in real time through the mobile terminal, so that corresponding measures can be taken. After the integration, the whole transmission speed is high, the power consumption is low, and the method is suitable for various occasions.

The utility model discloses a theory of operation is: as shown in fig. 1, when data of the force sensor needs to be transmitted to the BLU communication transmission module and then transmitted to the mobile terminal for monitoring, the force sensor is connected to an interface of the RS485 interface module through the RS485 interface module, parameters of a signal to be transmitted, which are acquired by the force sensor, are transmitted into the RS485 interface module through a bus, and then undergo level conversion through the MAX485 of the RS485 interface module, the signal is input to a radio frequency front end amplification circuit in the BLU communication transmission module again, the radio frequency front end amplification circuit outputs a signal to a CC2541 microprocessor of the BLU communication transmission module, the signal is processed by the CC2541 microprocessor, and finally the signal is transmitted to the mobile phone terminal module through the RF transceiver. During reverse transmission, the RF transceiver receives a signal sent by the mobile phone terminal module, transmits the signal to the CC2541 microprocessor of the BLU communication transmission module, the signal is processed by the CC2541 microprocessor and then input to the radio frequency front-end amplifying circuit in the BLU communication transmission module, and the signal output by the radio frequency front-end amplifying circuit is transmitted to the force sensor through the RS485 interface module.

The embodiments of the present invention have been described in detail with reference to the schematic block diagrams of the drawings, but the present invention is not limited to the above embodiments, and various changes can be made thereto within the knowledge of those skilled in the art.

Claims

1. The utility model provides a send and receive and monitoring device of force sensor collection signal, its characterized in that is including BLU communication transmission module, RS485 interface module, cell-phone terminal module and BLU panel module, wherein the external signal that force sensor gathered carries out the level through RS485 interface module and matches, the signal transmission of RS485 interface module output to BLU communication transmission module, the signal of BLU communication transmission module output sends for cell-phone terminal module, cell-phone terminal module also sends the signal and passes for BLU communication transmission module, and send the force sensor through RS485 interface module, BLU panel module is the power supply of BLU communication transmission module and RS485 interface module.

2. The device for transmitting, receiving and monitoring signals acquired by the force sensor according to claim 1, it is characterized in that the BLU communication transmission module comprises a radio frequency front end amplifying circuit and a radio frequency communication circuit, the radio frequency communication circuit comprises a microprocessor and an RF transceiver, external signals collected by the force sensor are subjected to level matching through an RS485 interface module, signals output by the RS485 interface module are transmitted to a radio frequency front-end amplification circuit in the BLU communication transmission module, the signals collected by the force sensor are subjected to noise reduction, filtering and amplification by the radio frequency front-end amplification circuit and then are output to the microprocessor in the radio frequency communication circuit, signals output by the microprocessor are sent to the mobile phone terminal module through the RF transceiver, the mobile phone terminal module also sends signals to the microprocessor through the RF collector, the signals processed by the microprocessor are output to the radio frequency front-end amplification circuit, and the signals processed by the radio frequency front-end amplification circuit are sent to the force sensor through the RS485 interface module.

3. The apparatus as claimed in claim 2, wherein the microprocessor is of the type CC 2541.

4. The device for transmitting, receiving and monitoring the signals collected by the force sensor according to claim 2, wherein the RS485 interface module comprises a MAX485 level conversion chip and an interface circuit, and the MAX485 level conversion chip is connected to the BLU communication transmission module through the interface circuit.

5. The device for transmitting, receiving and monitoring the signals collected by the force sensor according to any one of claims 1 to 4, wherein the RS485 interface module uses shielded twisted pair wires for transmission.

6. The device as claimed in claim 5, wherein the BLU battery board module comprises a battery board and an interface, and the battery board supplies power to the BLU communication transmission module and the RS485 interface module via the interface.