CN216351841U

CN216351841U - Low-power plunger arrival detection device

Info

Publication number: CN216351841U
Application number: CN202122351472.XU
Authority: CN
Inventors: 李健光; 李安涛
Original assignee: Shenzhen Pufang Technology Co ltd
Current assignee: Shenzhen Pufang Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-19
Anticipated expiration: 2031-09-27

Abstract

The utility model provides a low-power plunger arrival detection device which comprises a detection device and an auxiliary component adaptive to the detection device, wherein the detection device comprises an oscillation sensor, a CPU (central processing unit) controller, a switching value output module and an RS-485 data interface, an oscillation circuit is arranged in the oscillation sensor, a CPU control circuit is arranged in the CPU controller, a switching value output circuit is arranged in the switching value output module, an RS-485 data interface circuit is arranged in the RS-485 data interface, and the oscillation circuit, the CPU control circuit, the switching value output circuit and the RS-485 data interface circuit are connected through input and output electric signal lines. The electronic switch for controlling the power supply of the interface circuit and the electronic switch for controlling the power supply of the sensor are arranged, different power consumption modes are selected according to working requirements, and meanwhile, the power saving effect is achieved.

Description

Low-power plunger arrival detection device

Technical Field

The utility model relates to a low-power plunger arrival detection device.

Background

Nowadays, with the rapid development of society, energy conservation and emission reduction are increasingly advocated, which is also the mainstream direction of technological development.

In a gas production pipeline of a gas well of an oil-gas field, a plunger is often used. The plunger is a metal device which is arranged in a gas production pipeline of a gas well of an oil and gas field, and the material of the metal device is magnetic metal such as iron or steel. The plunger has four states: downhole, at the top of the surface, during descent, during ascent. In the application of the plunger, what we need to detect is: when the metal installation has reached the top of the gas production pipeline; when the metal plant begins to descend. The time difference between the two above times is how long the metal installation stays at the top. Electronic equipment installed around a gas well provides energy by means of solar energy or wind energy, and the power consumption of a plunger reaching a detection device relates to the problem of electricity waste.

We use the plunger arrival detection means to detect the plunger arrival, stop and departure conditions. The power consumption of the plunger arrival detection device mainly comprises: (1) an oscillation circuit which consumes the largest power; (2) a CPU; (3) an interface and output circuit; (4) and an indicator light. If the energy consumption of the detection device is not controlled, the electric energy is wasted to a certain extent.

The aim of low-power-consumption design is to reduce the normal working time of each component as much as possible on the premise of meeting the requirement of an application scene on timeliness. The higher the time duty ratio of the power saving or power off state, the smaller the power consumption.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a low-power plunger arrival detection device to solve the problem of electric energy waste in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a low-power plunger reachs detection device, includes detection device and with the auxiliary component of detection device adaptation, detection device includes oscillation sensor, CPU controller, switching value output module, RS-485 data interface, sets up oscillating circuit in the oscillation sensor, sets up CPU control circuit in the CPU controller, sets up switching value output circuit in the switching value output module, sets up RS-485 data interface circuit in the RS-485 data interface, connects through input and output isosignal line between oscillating circuit, CPU control circuit, switching value output circuit, the RS-485 data interface circuit.

The CPU control circuit is connected with an electronic switch for controlling the power supply of the interface circuit through a first output signal line, the first output signal line is connected with an input control end of the electronic switch for controlling the power supply of the interface circuit, and the RS-485 data interface is connected with a control end of the electronic switch for controlling the power supply of the interface circuit through a power supply line.

The CPU control circuit is connected with an electronic switch for controlling the power supply of the sensor through a second output signal line, the second output signal line is connected with an input control end of the electronic switch for controlling the power supply of the sensor, and the RS-485 data interface is connected with a control end of the electronic switch for controlling the power supply of the sensor through a power supply line.

The Power consumption modes set on the CPU control circuit comprise a Normal Power consumption mode, an Idle Power consumption mode and a Power down Power consumption mode.

The CPU controller is connected with an indicator light.

The power consumption of the switching value output circuit is low and can be generally ignored.

The following measures are mainly taken to reduce power consumption: (1) for the application without intelligent interface, under the control of CPU, in the time period except the set parameter, the power supply of RS-485 interface circuit is not provided, thus achieving the purpose of saving power. (2) The oscillator consumes most power, and the power consumption of the oscillator is reduced by adopting an intermittent power supply mode. (3) After the CPU completes the timing acquisition, the rest parts enter a low power consumption state except the timer.

For example, the detection interval time set by the user is 5 seconds, the detection time is 200ms, the transient time of the circuit can be stabilized without exceeding 10ms, then 5 seconds is taken as a period, in the period, the normal working time of the CPU and the oscillator is 0.21 second, and then the time ratio of the low power consumption to the normal power consumption is 4.79:0.21, namely about 22.8 times. The current of the CPU and the oscillation circuit is about 35mA @3.3V when the CPU and the oscillation circuit work normally, the current of the CPU and the oscillation circuit is about 0.6mA @3.3V when the CPU and the oscillation circuit are in low power consumption standby, and the power consumption difference is 58 times.

The working process of the detector is as follows: and detecting the current state when waking up, comparing the current state with the previous state, and starting a timer to shift to a low power consumption state if the current state is not changed. When the timer is up, the CPU is awakened, the power supply circuit is controlled to supply power to the oscillator, and detection is completed after the power supply circuit is stable. If the state changes, the current state is output, and various information of the current state is reserved for comparison in the next detection. And starting a timer after the detection is finished, entering a low power consumption state, and circulating.

The longer the allowable detection interval time is, the higher the low-power-consumption working time length occupation ratio is, and the more obvious the power saving effect is. The power consumption of normal operation and low-power consumption operation are very different, so that the aim of saving power can be fulfilled.

The auxiliary accessories comprise accessories for assisting in completing corresponding work, and the accessories comprise a plurality of software application carriers.

In software design, a parameter set by human is provided, namely acquisition interval. The software starts all the parts to enter a full-speed working state at regular time according to the acquisition interval set by a client, and enters a low-power consumption standby state after the acquisition is finished until the next acquisition time is up, and new acquisition is started.

The low power consumption control measures include: (1) the oscillator is powered off; (2) except the clock, the functional block enters Idle or Power down mode; (3) if the customer is not connected with the 485 interface, the interface is powered off, and only the switching value output is reserved; (4) the indicator light may be turned off fully, or may flash intermittently, depending on customer settings. According to the feedback result of the use condition of the client, the collection interval parameters set by the client are different, and the power consumption is basically less than one third of that of a non-power-saving design product.

Advantageous effects

The oscillation sensor, the CPU controller, the switching value output module and the RS-485 data interface are arranged, and under the condition of matching with related software application, program disorder is avoided, and efficient work is guaranteed; the electronic switch for controlling the power supply of the interface circuit and the electronic switch for controlling the power supply of the sensor are arranged, different power consumption modes are selected according to working requirements, and meanwhile, the power saving effect is achieved.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram illustrating control according to an embodiment of the utility model.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a low-power plunger reachs detection device, including detection device and with the auxiliary component of detection device adaptation, detection device includes oscillation sensor 1, CPU controller 2, switching value output module 3, RS-485 data interface 4, sets up oscillating circuit in the oscillation sensor, sets up CPU control circuit in the CPU controller, sets up switching value output circuit in the switching value output module, sets up RS-485 data interface circuit in the RS-485 data interface, connects through input and output electricity signal line between oscillating circuit, CPU control circuit, switching value output circuit, the RS-485 data interface circuit.

An indicator lamp 5 is connected to the CPU controller.

The following measures are mainly taken to reduce power consumption: (1) for the application without an intelligent interface, under the control of the CPU, the power supply of the RS-485 interface circuit is not provided in a time period except for the set parameters, so that the purpose of saving power is achieved. (2) The oscillator consumes most power, and the power consumption of the oscillator is reduced by adopting an intermittent power supply mode. (3) After the CPU completes the timing acquisition, the rest parts enter a low power consumption state except the timer.

The low power consumption control measures include: (1) the oscillator is powered off; (2) except the clock, the functional block enters Idle or Power down mode; (3) if the customer is not connected with the 485 interface, the interface is powered off, and only the switching value output is reserved; (4) the indicator light may be turned off fully, or may flash intermittently, depending on customer settings.

According to the feedback result of the use condition of the client, the collection interval parameters set by the client are different, and the power consumption is basically less than one third of that of a non-power-saving design product.

While there have been shown and described what are at present considered the fundamental principles of the utility model, its essential features and advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a low-power plunger arrival detection device, includes detection device and with the auxiliary component of detection device adaptation which characterized in that: the detection device comprises an oscillation sensor, a CPU controller, a switching value output module and an RS-485 data interface, wherein an oscillation circuit is arranged in the oscillation sensor, a CPU control circuit is arranged in the CPU controller, a switching value output circuit is arranged in the switching value output module, an RS-485 data interface circuit is arranged in the RS-485 data interface, and the oscillation circuit, the CPU control circuit, the switching value output circuit and the RS-485 data interface circuit are connected through input and output electric signal lines; the CPU control circuit is connected with an electronic switch for controlling the power supply of the interface circuit through a first output signal line, the first output signal line is connected with an input control end of the electronic switch for controlling the power supply of the interface circuit, and the RS-485 data interface is connected with a control end of the electronic switch for controlling the power supply of the interface circuit through a power supply line; the CPU control circuit is connected with an electronic switch for controlling the power supply of the sensor through a second output signal line, the second output signal line is connected with an input control end of the electronic switch for controlling the power supply of the sensor, and the RS-485 data interface is connected with a control end of the electronic switch for controlling the power supply of the sensor through a power supply line.

2. A low power plunger arrival detection apparatus as claimed in claim 1, wherein: the CPU controller is connected with an indicator light.