阅读说明：本技术 一种基于水源介电系数的水泵水源测控装置 (Water pump water source measurement and control device based on water source dielectric coefficient ) 是由 揭晓波 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种基于水源介电系数的水泵水源测控装置,包括第一仓室和第二仓室,所述第一仓室内设有M433芯片和储存器,所述第二仓室内设有发送天线和接收天线；所述M433芯片的第1引脚通过放大器与所述发送天线连接,所述储存器与所述M433芯片的第5引脚连接,所述接收天线通过放大器与所述M433芯片的第6引脚连接；所述M433芯片的第7引脚与水泵的启停开关连接；所述第二仓室的侧壁上设有过水口。本发明可根据水源状况自动控制水泵停止工作,无需人员监控,也节省了复杂昂贵的辅助仪表设施的投入成本,供水作业的效率和效益得以提升。(The invention discloses a water pump water source measurement and control device based on water source dielectric coefficient, which comprises a first chamber and a second chamber, wherein an M433 chip and a storage device are arranged in the first chamber, and a transmitting antenna and a receiving antenna are arranged in the second chamber; the 1 st pin of the M433 chip is connected with the transmitting antenna through an amplifier, the storage is connected with the 5 th pin of the M433 chip, and the receiving antenna is connected with the 6 th pin of the M433 chip through an amplifier; a 7 th pin of the M433 chip is connected with a start-stop switch of the water pump; and a water passing port is formed in the side wall of the second chamber. The invention can automatically control the water pump to stop working according to the water source condition without monitoring by personnel, thereby saving the input cost of complex and expensive auxiliary instrument facilities and improving the efficiency and benefit of water supply operation.)

1. A water pump water source measurement and control device based on water source dielectric coefficient is characterized by comprising a first chamber and a second chamber, wherein an M433 chip and a storage device are arranged in the first chamber, a sending antenna and a receiving antenna are arranged in the second chamber, and the sending antenna and the receiving antenna are both plate-shaped antennas; the 1 st pin of the M433 chip is connected with the transmitting antenna through an amplifier, the storage is connected with the 5 th pin of the M433 chip, and the receiving antenna is connected with the 6 th pin of the M433 chip through an amplifier; a 7 th pin of the M433 chip is connected with a start-stop switch of the water pump; and a water passing port is formed in the side wall of the second chamber.

2. The water source dielectric coefficient-based water pump water source measurement and control device as claimed in claim 1, further comprising a watchdog circuit, wherein one end of the watchdog circuit is connected to the 4 th pin of the M433 chip.

3. The water source dielectric coefficient-based water pump water source measurement and control device as claimed in claim 1 or 2, wherein the surfaces of the transmitting antenna and the receiving antenna are both provided with passivation films made of high polymer polyester materials.

4. The water pump water source measurement and control device based on the water source dielectric coefficient of claim 3, wherein the first chamber is of a closed structure, and a metal layer and a waterproof breathable film are sequentially arranged on the inner wall of the first chamber towards the inner side of the first chamber.

Technical Field

The invention relates to the field of water source detection of water pumps, in particular to a water source measurement and control device of a water pump based on a water source dielectric coefficient.

Background

The conditions of the water source, including whether the water source exists or not, the water level, the water quantity, the water quality and the like, all influence and restrict the work of the water pump, at present, the monitoring of the working state of the water pump is basically realized by adopting a manual mode to observe, or the working state of the water pump is measured and controlled by adopting complex and expensive auxiliary instrument facilities, so that the labor cost or the investment cost of equipment is undoubtedly increased.

Disclosure of Invention

Aiming at the problems, the invention provides a water source measurement and control device of a water pump based on the dielectric coefficient of the water source, which has the advantages of simple structure, low cost, high reliability and strong applicability.

The technical scheme of the invention is as follows:

a water pump water source measurement and control device based on water source dielectric coefficient comprises a first bin and a second bin, wherein an M433 chip, a power supply and a storage device for supplying power to the M433 chip are arranged in the first bin, a transmitting antenna and a receiving antenna are arranged in the second bin, and the transmitting antenna and the receiving antenna are both plate-shaped antennas and have the advantages of high gain, good sector directional diagram, small back lobe, convenience in control of a vertical plane directional diagram depression angle, reliable sealing performance and long service life; the 1 st pin of the M433 chip is connected with the transmitting antenna through an amplifier, the 2 nd pin of the M433 chip is connected with the anode of the power supply, the 3 rd pin of the M433 chip is connected with the cathode of the power supply, the storage is connected with the 5 th pin of the M433 chip, and the receiving antenna is connected with the 6 th pin of the M433 chip through an amplifier; a 7 th pin of the M433 chip is connected with a start-stop switch of the water pump; and a water passing port is formed in the side wall of the second chamber.

The working principle of the technical scheme is as follows:

when an electrical signal with a higher frequency is transmitted in a medium, attenuation and harmonic generation of the signal transmitted in the medium are different due to different dielectric coefficients of different media, and signal information received at a receiving end is different. The invention obtains different dielectric coefficients of the electric signal with certain frequency (working frequency value) in the water source of the working range of the water pump through theoretical calculation and a large number of repeated tests in advance, selects the dielectric coefficient range of the water source condition of the normal working of the water pump, makes a waveform diagram and a frequency spectrum diagram of the dielectric signals and stores the waveform diagram and the frequency spectrum diagram in the storage.

When the water pump works, the second chamber is communicated with a water source, a transmitting antenna connected to a first signal output end of the M433 chip radiates a dielectric signal with a working frequency value, the dielectric signal is propagated in the water source and received by a receiving antenna connected to a first signal input end of the M433 chip, a corresponding dielectric signal waveform diagram and a corresponding dielectric signal frequency spectrum diagram are generated through analysis and processing of the M433 chip, the storage is connected with a second signal input end of the M433 chip and is used for providing reasonable reference for the dielectric signal waveform diagram and the frequency spectrum diagram for the M433 chip, when the water source, the water level, the water quantity, the water quality and the like are changed, attenuation and harmonic generation of the received dielectric signal can be changed, when the change exceeds a reasonable range of data stored in the storage, the M433 chip sends a shutdown signal, and a start-stop switch of the water pump connected with a second output end of the M433 chip is disconnected, the water pump stops running.

By adopting the technical scheme, the invention judges the oscillogram and the spectrogram generated after the dielectric signal is transmitted in the water source by utilizing the principle of different characteristics (different transmission attenuation and harmonic generation) of the dielectric signal with a certain frequency transmitted in different media so as to judge whether the water source condition in the working range of the water pump reaches the standard or not, the water pump can be automatically controlled to stop working according to the water source condition, the monitoring of personnel is not needed, the investment cost of complex and expensive auxiliary instrument facilities is saved, and the efficiency and the benefit of water supply operation are improved.

In a further technical scheme, still include the watchdog circuit, the one end of watchdog circuit with the 4 th pin of M433 chip is connected, sets up the watchdog circuit, and when M433 chip operation card was dead, the watchdog circuit can send restart signal to M433 chip, restarts M433 chip, prevents that entire system from being absorbed in the stall state.

In a further technical scheme, passivation coatings made of high polymer polyester materials are arranged on the surfaces of the transmitting antenna and the receiving antenna, so that the corrosion resistance of the transmitting antenna is improved, and the service life of the transmitting antenna is prolonged.

In a further technical scheme, first bin is the enclosed construction, be equipped with metal level and waterproof ventilated membrane in proper order towards the inboard of first bin on the inner wall of first bin, the metal level has electromagnetic shielding effect, and waterproof ventilated membrane can improve the waterproof nature to first bin inner assembly.

The invention has the beneficial effects that:

1. the invention utilizes the principle of different characteristics (different transmission attenuation and harmonic generation) of dielectric signals with certain frequency propagated in different media to judge the oscillogram and spectrogram generated after the dielectric signals are propagated in a water source so as to judge whether the water source condition in the working range of the water pump reaches the standard or not, the water pump can be automatically controlled to stop working according to the water source condition without monitoring by personnel, the investment cost of complex and expensive auxiliary instrument facilities is saved, and the efficiency and benefit of water supply operation are improved.

2. The watchdog circuit is arranged, when the M433 chip runs and is clamped, the watchdog circuit can send a restart signal to the M433 chip, and the M433 chip is restarted, so that the whole system is prevented from being trapped in a stagnation state.

3. The surfaces of the transmitting antenna and the receiving antenna are respectively provided with a passivation coating film made of high-molecular polyester material, so that the corrosion resistance of the transmitting antenna is improved, and the service life of the transmitting antenna is prolonged.

4. Be equipped with metal level and waterproof ventilated membrane on the inner wall of first bin in proper order, the metal level has electromagnetic shielding effect, and waterproof ventilated membrane can improve the waterproof nature to first bin internal component.

Drawings

FIG. 1 is a schematic structural diagram of a water source measurement and control device of a water pump based on the dielectric coefficient of the water source according to an embodiment of the present invention;

fig. 2 is a waveform diagram of a dielectric signal of a transmitting end according to an embodiment of the present invention;

FIG. 3 is a waveform diagram of a dielectric signal at the receiving end according to an embodiment of the present invention;

fig. 4 is a frequency spectrum diagram of a dielectric signal of a transmitting end according to an embodiment of the present invention;

fig. 5 is a frequency spectrum diagram of a dielectric signal at the receiving end according to an embodiment of the invention.

Description of reference numerals:

10. a first chamber; 11. an M433 chip; 12. a power source; 13. a reservoir; 14. an amplifier; 15. a start-stop switch; 16. a watchdog circuit; 20. a second chamber; 21. a transmitting antenna; 22. a receiving antenna; 23. a water outlet; 30. and (4) a water pump.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.