[New Patent Introduction] Wireless Differential Pressure Transmitter
Today, I will introduce a national invention authorized patent-wireless differential pressure transmitter. The patent was applied for by Nanjing Hangjia Electronic Technology Co., Ltd., and the authorization was announced on December 22, 2017. The invention belongs to the technical field of differential pressure transmitters, and relates to a wireless differential pressure transmitter. The differential pressure transmitter is a transmitter that measures the pressure difference between the two ends of the transmitter. The working principle of the differential pressure transmitter is: the differential pressure from the double-sided pressure guiding tube directly acts on both sides of the transmitter sensor On the isolation diaphragm, the sealing liquid in the diaphragm is conducted to the measuring element. The measuring element converts the measured differential pressure value into a corresponding electrical signal and transmits it. Differential pressure transmitters are suitable for use in oilfields, water conservancy, tap water and other industries, and are usually installed in industrial production and raw material collection sites. As the industrial industries in the city gradually move away from the periphery, these sites are also farther and farther away from the city center. The corresponding communication signal base stations are relatively sparse, and the signal network status is not as stable as in the city, which results in the transmitter signal acquisition and transmission. The instability of the system affects the normal collection of data. In order to solve the above problems, the present invention discloses a wireless differential pressure transmitter with signal enhancement. In order to achieve the above objectives, the present invention provides the following technical solutions: an enhanced differential pressure transmitter, including a battery, a processor, a differential pressure sensor, amplifying circuit, an AD conversion circuit, a man-machine interface, a memory, a wireless communication module, and a differential pressure sensor , Amplification circuit, AD conversion circuit are connected in sequence, the processor is respectively connected with AD conversion circuit, memory, human-machine interface, wireless communication module, battery supplies power for each element in the transmitter, and differential pressure sensor is used to collect electrical signals and amplify the circuit It is used to amplify the signal collected by the differential pressure sensor. The AD conversion circuit is used to convert the signal output by the amplifying circuit into a digital signal and transmit it to the processor. The wireless communication module includes a short-range wireless communication module and a mobile communication module, The mobile communication module includes a 3G/4G communication unit, a signal booster, and an antenna connected in sequence. Further, the short-range wireless communication module includes at least one of a WIFI module, a Bluetooth module, a zigbee module, and a radio frequency module. Compared with the prior art, the present invention has the following advantages and beneficial effects: the enhanced wireless pressure transmitter provided by the present invention adopts long-distance and short-distance wireless communication modes, and performs signal enhancement in the long-distance wireless communication mode to maintain Signal strength to avoid signal loss during transmission. The transmitter can perform amplification processing after signal acquisition, so that the signal can still maintain a strong signal strength in subsequent processing.
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