CN105788210A - Wireless transmitter data collection system and method for thermal test - Google Patents

Abstract

The invention discloses a wireless transmitter data acquisition system and method for thermal tests, comprising: a wired transmitter, a wireless data transmission module, a wireless collector and a wireless router; The wire is connected with the wireless data transmission module, and the wireless transmission module communicates wirelessly with the wireless collector, and the wireless collector is connected with the wireless router. Beneficial effects of the present invention: the system and method of the present invention can realize the secondary utilization of wired transmitters, making the connection between devices simple and time-saving, and the wireless data transmission module can be set with different sending and receiving frequencies, which is relatively more efficient. Strong anti-interference, to ensure a good transmission effect.

Description

Wireless transmitter data acquisition system and method for thermal test

technical field

The invention relates to the field of wireless communication, in particular to a data acquisition system and method for a wireless transmitter used in a thermal test.

Background technique

At present, wired transmitters are commonly used in thermal tests. During thermal tests, 24V power supply is required to continuously provide voltage for each transmitter. The transmitter transmits the signal to the IMP data acquisition board through the pressure shielded wire. The IMP digital acquisition board transmits the signal to the data acquisition instrument through the signal shielding wire, and finally the data acquisition instrument transmits the signal to the PC equipped with special software. In practical applications, because the thermal test needs to collect many operating parameters, and The measuring points are widely distributed and far apart. In addition, the pipelines in the power plant are intricate. When collecting multiple operating parameters of the power plant, a lot of shielded wires are needed to connect the equipment, and the connection between the equipment becomes complicated and troublesome.

With the development of information technology, wireless smart devices are becoming more and more popular; however, the existing wireless transmitters need to be designed separately, resulting in more and more waste of resources for wired transmitters. Moreover, due to the influence of the position of the measuring point, the wireless signal transmission has an attenuation effect, and there will be a connection failure or an unstable connection between the wireless transmitter and the wireless collector, resulting in data collection failure and affecting the accuracy of the test results .

Contents of the invention

The purpose of the present invention is to solve the above problems, providing a wireless transmitter data acquisition system and method for thermal testing, the system is improved on the basis of the original wired transmitter, so that the equipment between The connection is simple and time-saving, and has stronger anti-interference.

To achieve the above object, the specific scheme of the present invention is as follows:

A wireless transmitter data acquisition system for thermal testing, comprising: a wired transmitter, a wireless data transmission module, a wireless collector and a wireless router;

A wireless data transmission module is connected to the wired transmitter, the wireless data transmission module has data collection and transmission functions, and performs wireless communication with a wireless collector, and the wireless collector is connected to a wireless router.

The wireless collector is also provided with an RS485 serial interface for connecting and communicating with the RS485 serial interface on the PC.

The wireless data transmission module can modify the serial port rate, data transmission power and radio frequency rate online.

The working frequency of the wireless data transmission module is 4.1GHZ-4.6GHZ.

The wireless collector communicates with one or more wireless data transmission modules at the same time.

A wireless transmitter signal transceiving and connecting device is arranged between the wireless data transmission module and the antenna.

The wireless transmitter signal sending and receiving connection device includes: a high-temperature high-frequency jumper, one end of the high-temperature high-frequency jumper is connected to the wireless data transmission module through an SMA female and male pin connector, and the other end is connected to the antenna of the wireless data transmission module .

The high-temperature and high-frequency jumper is formed by connecting several sections of high-temperature and high-frequency jumper in series through SMA female and male connectors; the SMA female and male connectors are coaxial radio frequency connectors.

A wireless transmitter data acquisition method for thermal testing, comprising:

When collecting the operating parameters of the power plant, the wired transmitter transmits the analog signal to the wireless data transmission module through the signal input and output shielded wire, and the wireless collector receives the analog signal from the wireless data transmission module and transmits it through a wireless router or RS485 serial The line interface transmits the signal to the PC;

If the distance between the wired transmitter and the wireless collector is greater than the set value, set a high-temperature high-frequency jumper between the wireless data transmission module and the antenna, and one end of the high-temperature high-frequency jumper is connected to the wireless The data transmission module is connected, and the other end is connected with the antenna.

Beneficial effects of the present invention:

Using the system and method of the present invention can realize the secondary utilization of wired transmitters, making the connection between devices simple and time-saving, and the wireless data transmission module can be set with different sending and receiving frequencies, relatively speaking, it has stronger anti-interference , to ensure a good transmission effect.

When the distance between the wireless transmitter and the wireless collector is too long, the signal transmission distance is shortened by high-temperature and high-frequency jumpers, which avoids the influence of the data transmission by the position of the measuring point.

Description of drawings

Fig. 1 is a schematic structural diagram of the system of the present invention;

Fig. 2 is a schematic diagram of a high-temperature high-frequency jumper of the present invention;

Among them, 1. Wired transmitter, 2. Signal input and output shielded wire, 3.5V/1A battery, 4. Wireless data transmission module, 5. Antenna 6. DC 24V power adapter, 7. Wireless collector, 8. Wireless router , 9. DC 9V power adapter, 10. RS485 serial interface, 11. PC, 12. SMA female head, male connector, female connector, 13. SMA female connector, male connector, 14. First high temperature jumper, 15. Second high temperature jumper.

detailed description:

The present invention is described in detail below in conjunction with accompanying drawing:

As shown in Figure 1, a wireless transmitter data acquisition system for thermal testing is characterized in that it includes: a wired transmitter 1, a signal input and output shielded wire 2, a wireless data transmission module 4, and a wireless collector 7 and wireless router 8;

The wired transmitter 1 is connected to the wireless data transmission module 4 through the signal input and output shielded wire 2 , the wireless data transmission module 4 performs wireless communication with the wireless collector 7 , and the wireless collector 7 is connected to the wireless router 8 .

The 5V/1A storage battery 3 is connected to the wireless data transmission module 4 as a power supply. DC 24V power adapter 6 is connected with wireless collector 7 . The DC 9V power adapter 9 is connected with the wireless router 8 .

The wireless data transmission module 4 is a high-speed, low-power, high-performance wireless transparent module. The module can modify various parameters such as serial port rate, transmission power, and radio frequency rate online.

The working frequency of the wireless data transmission module 4 is 4.1GHZ-4.6GHZ (the natural frequency is 4.33GHZ), and the working voltage is 5V.

The wireless collector 7 receives the information sent by the wireless data transmission module 4, and transmits the information to the PC 11 through the wireless router 8 or the RS485 serial interface 10.

The wireless collector 7 can receive and transmit information from one or even multiple wireless data transmission modules. The working frequency of the wireless collector 7 is 4.1GHZ～4.6GHZ, and the working voltage is AC24V. The working voltage of the wireless router 8 is AC9V.

The PC 11 is equipped with special parameter setting software and configuration software, which are used to set different parameters and receive the information transmitted by the wireless collector 7 through the wireless router 8 or the RS485 serial interface 10, and store it in a designated location of the computer.

When collecting the operating parameters of the power plant, the wired transmitter 1 transmits the analog signal to the wireless data transmission module 4 through the signal input and output shielded wire 2, and the wireless collector 7 receives the analog signal from the antenna 5 of the wireless data transmission module. And transmit the signal to the PC 11 through the wireless router 8 or the RS485 serial interface 10 . Since the method of the present invention realizes that the wired transmitter 1 is changed into a wireless transmitter, and has the characteristics of simple connection and time-saving, it also realizes the secondary utilization of the wired transmitter 1, saves the test cost, and the wireless transmitter after transformation The transmitter can adjust the frequency by itself and has strong anti-interference.

As another implementation, when the distance between the wired transmitter 1 and the wireless collector 7 is relatively large, the transmission signal is weak; a wireless data transmission module can be set between the wireless data transmission module 4 and the antenna 5 of the wireless data transmission module. Transmitter signal transceiver connection device.

As shown in Figure 2, the wireless transmitter signal transceiver connection device includes: a high-temperature high-frequency jumper wire, one end of the high-temperature high-frequency jumper wire is connected to the wireless data transmission module 4 through an SMA female head male connector, and the other end is connected to the wireless data transmission module Antenna 5 of 4 is connected. The high-temperature high-frequency jumper is a double-layer shielded RG142 jumper.

When the transmission signal is particularly weak, multiple high-temperature and high-frequency jumpers can be connected in series, and the high-temperature and high-frequency jumpers are connected in series through SMA female and male pin connectors; shorten the distance between the wireless collector 7 and the wireless data transmission module 4. The distance between the antennas 5 makes the wireless data transmission module 4 within the signal coverage of the wireless collector 7 . This embodiment adopts the first high-temperature high-frequency jumper 14 and the second high-temperature high-frequency jumper 15 to be connected in series; the SMA female head male connector includes: SMA female head male connector female head 12 and SMA female head male connector male Pin 13, SMA female male connector is a coaxial RF connector.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (9)

1. A wireless transmitter data acquisition system for thermal testing, characterized in that it comprises: a wired transmitter, a wireless data transmission module, a wireless collector and a wireless router; Connect the wireless data transmission module to the wired transmitter, the wireless data transmission module collects and transmits the data of the wired transmitter, the wireless data transmission module communicates wirelessly with the wireless collector, and the wireless collector communicates with the wireless collector Wireless router connection. 2. A kind of wireless transmitter data acquisition system that is used for thermal test as claimed in claim 1, is characterized in that, described wireless collector is also provided with RS485 serial interface, is used for connecting with the RS485 on the PC Line interface for connection communication. 3. A wireless transmitter data acquisition system for thermal testing as claimed in claim 1, wherein the wireless data transmission module can modify serial port rate, data transmission power and radio frequency rate online. 4. A wireless transmitter data acquisition system for thermal testing according to claim 1, wherein the working frequency of the wireless data transmission module is 4.1GHZ-4.6GHZ. 5. A wireless transmitter data acquisition system for thermal testing according to claim 1, wherein the wireless collector communicates with one or more wireless data transmission modules at the same time. 6. A kind of wireless transmitter data acquisition system for thermal test as claimed in claim 1, is characterized in that, is provided with antenna on described wireless data transmission module, between described wireless data transmission module and antenna A wireless transmitter signal transceiver connection device is set between them. 7. A wireless transmitter data acquisition system for thermal testing as claimed in claim 6, wherein said wireless transmitter signal transceiver connection device comprises: a high temperature high frequency jumper, said high temperature high One end of the frequency jumper is connected to the wireless data transmission module through the SMA female male pin connector, and the other end is connected to the antenna. 8. A wireless transmitter data acquisition system for thermal testing as claimed in claim 7, wherein the high-temperature and high-frequency jumper consists of several sections of high-temperature and high-frequency jumper through SMA female and male pin connectors connected in series; the SMA female and male connectors are coaxial radio frequency connectors. 9. A wireless transmitter data acquisition method for thermal test as claimed in claim 1, characterized in that, comprising: When collecting the operating parameters of the power plant, the wired transmitter transmits the analog signal to the wireless data transmission module through the signal input and output shielded wire, and the wireless collector receives the analog signal from the wireless data transmission module and transmits it through a wireless router or RS485 serial The line interface transmits the signal to the PC; If the distance between the wired transmitter and the wireless collector is greater than the set value, connect a high-temperature high-frequency jumper between the wireless data transmission module and the antenna set on it, and one end of the high-temperature high-frequency jumper passes through the SMA female The male pin connector is connected with the wireless data transmission module, and the other end is connected with the antenna.