CN213521387U

CN213521387U - Intelligent controller for power supply

Info

Publication number: CN213521387U
Application number: CN202021613731.0U
Authority: CN
Inventors: 李兴泉; 张天钟; 苏金蓉; 邵玉平; 吴朋; 谢江涛
Original assignee: Sichuan Earthquake Monitoring Center
Current assignee: Sichuan Earthquake Monitoring Center
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-06-22
Anticipated expiration: 2030-08-06

Abstract

The utility model discloses a power intelligent control ware, central processing unit is used for controlling the switching of power output end. The general intelligent power supply controller has the following main functions: a) the power supply system is easy to access, and after the external part of the controller is accessed to the original power supply system of the earthquake observation station, the functions of the power supply system of the station can be optimized and expanded, so that the modification cost of the power supply system of the original station is reduced; b) the starting conditions of external power supply of the two output ends are reasonably planned, the output ends can present various output modes according to the running state of the earthquake observation station, the normal power supply of the acquisition unit of the station is preferentially ensured, the integrity of the recorded data of the station is improved to the maximum extent, and the requirements of users are met in the aspects of effectively prolonging the service life of professional equipment of the station, prolonging the service life of a storage battery and the like; c) short-circuit protection current sets up independently, satisfies station professional equipment numerous kind, bears the biggest current value diverse, strengthens the equipment commonality.

Description

Intelligent controller for power supply

Technical Field

The utility model relates to a power control field especially relates to a power intelligent control ware.

Background

The earthquake monitoring refers to monitoring and measuring earthquake precursor abnormity and earthquake activity before and after an earthquake occurs. The earthquake monitoring mainly comprises a plurality of division methods, one is a division of the profession and the masses, and refers to a professional earthquake station and a plurality of group measuring points, wherein the professional earthquake station is mainly used for monitoring instruments, such as a water level meter, a seismograph, an electromagnetic wave measuring instrument and the like, and is used for monitoring the microscopic premonition information of the earthquake; the latter method is mainly to observe the macroscopic abnormal phenomena before earthquake by means of shallow water well, water temperature, abnormal activities of animals and plants, etc.

In recent years, with the emphasis on earthquake observation research in countries and places, regional station networks, scientific research station arrays, mobile stations and earthquake early warning stations with various means are built nationwide, how to ensure the normal operation of digital earthquake stations becomes a key task of technical support, the digital earthquake stations generally comprise professional earthquake signal acquirers, data transmission equipment and multifunctional power supply equipment, the earthquake observation station is erected in the field, the working environment is harsh, and faults caused by power supply problems are frequent. A stable and reliable power supply system is therefore a prerequisite for the proper functioning of the station.

The power supply of the earthquake observation station mainly comprises various forms of power supply means such as alternating current power supply, solar energy + storage battery power supply and alternating current + solar energy + storage battery hybrid power supply, at present, researches on power supply used by the station are few, solar energy management power supply on the market cannot meet actual requirements of the earthquake observation station, or a pure hardware circuit and a low-end microprocessor are adopted, so that the performance and reliability of the earthquake observation station are limited to a certain extent, and the phenomena of fault of observation equipment, memory interruption and data loss are caused. Meanwhile, the solar power supply conditions around the field station are not ideal enough or the instability of a power grid in remote areas and frequent power failure are caused, and under the working mode of the power supply system of the existing station, the phenomenon that the storage battery of the station is over-discharged and damaged frequently occurs, and meanwhile, the phenomenon that the back-end equipment is repeatedly restarted and damaged due to irregular external power supply in the undervoltage state of the storage battery is more common.

The power supply used by the power supply system of the current earthquake observation station does not basically have a short-circuit protection function or uses simple devices such as fuses, short-circuit faults often occur in the field use process of the station observation equipment, and the station maintenance cost is increased due to the fact that the station power supply system equipment is easily damaged under the condition of no protection measures.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: to the problem that exists, provide a power intelligent control ware, solved seismological observation station power supply stability's problem, solved the problem that the power supply of seismological observation station power supply system output does not have the planning, solved seismological observation station equipment short circuit and caused the equipment damage problem.

The utility model adopts the technical scheme as follows:

the power supply intelligent controller comprises a power supply controller, wherein the power supply controller comprises a central processing unit for controlling power supply output, a power supply input end and a plurality of power supply output ends, and the central processing unit is used for controlling the power supply output ends to be switched on and switched off.

Further, the utility model discloses a power intelligent control ware's preferred structure, power input end is provided with voltage detection unit, voltage detection unit's input is connected with the power input end electricity, voltage detection unit's output passes through AD conversion device and links to each other with the central processing unit signal.

Furthermore, each power output end is provided with a switch circuit, and the control end of the switch circuit is connected with the central processing unit through a cable in a signal mode.

Furthermore, the input end of the power supply intelligent controller is connected with a station management power supply through a cable, the output end of the power supply intelligent controller is connected with a collection device through a cable, and the output end of the power supply controller is connected with a communication device through a cable.

Further, the station management power supply comprises a charging and discharging circuit, one end of the charging and discharging circuit is connected with a storage battery through a cable, and the input end of the charging and discharging circuit is electrically connected with the solar cell panel and the mains supply through cables.

Furthermore, the commercial power supply is electrically connected with the station management power supply through a voltage reduction circuit, and the solar cell panel is electrically connected with the station management power supply through a voltage stabilizing circuit.

Further, when the intelligent power controller detects that the voltage of the storage battery is reduced to 11.5v, the intelligent power controller cuts off power supply to the communication equipment, and when the voltage of the storage battery is reduced to 10.9v, the intelligent power controller cuts off power supply to the acquisition equipment.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. intelligently controlling two paths of output: the system enables the output end to present three working states of closing one path, closing two paths and simultaneously opening two paths according to the running state of the earthquake observation station, thereby preferentially ensuring the normal power supply of the station acquisition unit and improving the integrity of the station recorded data to the maximum extent. Meanwhile, the service lives of professional equipment of the station and the storage battery can be effectively prolonged.

2. The device reasonably plans the starting condition after two paths of output are interrupted and the external power supply is interrupted, and avoids the occurrence of the device damage phenomenon caused by repeated restart of the back-end device due to the undervoltage of the power supply system.

3. The development equipment can independently set the protection current of the two output ends through the setting button, so that the universality of the development equipment is improved to the maximum extent.

4. This equipment passes through the original power supply system of outside direct access seismological observation station, alright optimize and expand the function of station power supply system, easy operation, easily popularization, but the furthest reduction station power supply system reforms transform the cost.

5. The application of the equipment can enable the power supply system of the original station to have self-diagnosis and self-recovery capabilities, avoids the situation that the storage battery of the station cannot recover by itself after being under-voltage and needs field maintenance of technicians, reduces the maintenance cost of the station and the field maintenance risk of the technicians.

Drawings

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

FIG. 2 is a schematic diagram of the application structure of the present invention;

the labels in the figure are: the system comprises a solar cell panel 1, a storage battery 2, a commercial power supply 3, a station management power supply 4, a power supply intelligent controller 5, an acquisition device 6 and a communication device 7.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, the utility model discloses a power intelligent controller, including power intelligent controller 5, power intelligent controller 5 is including the central processing unit who is used for controlling power output, and central processing unit is the MCU controller. Including power input end, power input end is provided with voltage detection unit, voltage detection unit's input is connected with the power input end electricity, voltage detection unit's output passes through AD conversion device and links to each other with central processing unit signal.

The power supply comprises a plurality of power supply output ends, each power supply output end is provided with a switch circuit, and the control end of each switch circuit is connected with a central processing unit through a cable in a signal mode. The central processing unit is used for controlling the on-off of the power supply output end. When the power supply intelligent controller 5 detects that the voltage of the storage battery 2 is reduced to 11.5v, the power supply intelligent controller 5 cuts off the power supply to the communication equipment 7, when the power supply intelligent controller 5 detects that the voltage of the storage battery is reduced to 10.9v, the power supply controller 5 cuts off the power supply to the acquisition equipment 6, and after the power supply controller (5) detects that the voltage of the storage battery is recovered to 12.5v, the two output ends simultaneously supply power to the communication equipment (7) and the acquisition equipment (6).

The input of power intelligent control ware 5 has station management power 4 through cable junction, the output of power intelligent control ware 5 has collection equipment 6 through cable junction, the output of power intelligent control ware 5 has communication equipment 7 through cable junction.

The station management power supply 4 comprises a charging and discharging circuit, one end of the charging and discharging circuit is connected with the storage battery 2 through a cable, and the input end of the charging and discharging circuit is electrically connected with the solar cell panel 1 and the mains supply 3 through cables respectively. The utility power supply 3 is electrically connected with the station management power supply 4 through a voltage reduction circuit, and the solar cell panel 1 is electrically connected with the station management power supply 4 through a voltage stabilizing circuit.

In the specific operation process, the central processing unit detects the voltage of the storage battery through the voltage detection unit, transmits the voltage to the central processing unit after AD conversion, and adjusts the output according to the voltage of the storage battery. When the voltage of the storage battery 2 is detected to be reduced to 11.5v, the intelligent controller cuts off power supply to the communication unit, when the voltage of the storage battery 2 is detected to be reduced to 10.9v, the intelligent controller cuts off power supply to the digital signal, at the moment, the two paths of outputs stop supplying power to the outside completely, and when the voltage of the storage battery is detected to be restored to 12.5v, the intelligent controller controls the two paths of outputs to supply power to the outside simultaneously.

After the system is powered on, a user can set functional parameters such as a control voltage value and an output end protection current value through a menu interface, a program then enters a main loop, module processing functions such as a keyboard, a control module, a data transmission module, a display module and the like are called in a circulating mode, the storage battery and two output states are monitored in real time, collected state data are processed and compared with set state parameters, and then the output end is intelligently controlled. When detecting that battery voltage drops to 11.5v, the intelligent control ware disconnection is to the power supply of communication unit, when detecting that battery voltage drops to 10.9v, the intelligent control ware disconnection is to the power supply of adopting, two way outputs are the external power supply of stopping entirely this moment, after detecting that battery voltage resumes to 12.5v, the intelligent control ware control two way outputs externally power supply simultaneously, monitoring station system starts the double-deck mode of local record and teletransmission, the timely acquisition and the control of guarantee remote terminal station information.

Example 2:

as shown in fig. 1, a preferred structure of the present application is disclosed on the basis of embodiment 1, and the MCU controller is connected to a battery state monitoring AD for monitoring the state of the battery. The MCU controller is connected with an output end state monitoring AD for monitoring the state of the output end. The MCU controller is connected with a humidity monitoring AD for monitoring the humidity inside the equipment.

The MCU controller is connected with a liquid crystal display screen and is used for assisting the state of the display equipment and facilitating field debugging of workers. The MCU controller is connected with a keyboard control device and used for inputting control parameters. The MCU controller is connected with the two switching circuits through circuit control and used for controlling the switching on and switching off of the switching circuits.

The one switching circuit is connected to the primary output terminal, and the other switching circuit is connected to the secondary output terminal. Therefore, the optimized supply of electric quantity can be realized, and the working time and data acquisition of the equipment under the condition of insufficient illumination can be improved to the maximum extent.

The MCU controller adopts a 32-bit ARM microprocessor STM32F107 produced by Italian semiconductor company as an equipment main control unit, the chip is an interconnection type microcontroller, various high-performance industrial standard interfaces are integrated, and the MCU controller is suitable for various applications, the standard peripheral equipment comprises 10 timers, two 12-bit 1-Mample/s AD (analog-to-digital converters) (2M samples/s in a fast alternating mode), two 12-bit DA (digital-to-analog converters), two I2C interfaces, five USART interfaces, three SPI ports and a high-quality digital audio interface IIS, and the STM32F107 is provided with a USB (OTG) interface, two CAN2.0B interfaces and an Ethernet 10/100MAC module. The chip has the excellent characteristics of high performance, low power consumption, rich interfaces, small size and the like, brings excellent expansion functions for product development, is rich in peripheral configuration, and facilitates expansion and maintenance of equipment.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a power intelligent control ware which characterized in that: the power supply controller comprises a power supply controller (5), wherein the power supply controller (5) comprises a central processing unit for controlling power supply output, a power supply input end and a plurality of power supply output ends, and the central processing unit is used for controlling the on-off of the power supply output ends; the power input end is provided with a voltage detection unit, the input end of the voltage detection unit is electrically connected with the power input end, and the output end of the voltage detection unit is connected with the central processing unit through an AD conversion device.

2. The intelligent controller for power supply of claim 1, wherein: each power output end is provided with a switch circuit, and the control end of each switch circuit is connected with the central processing unit through a cable in a signal mode.

3. The intelligent controller for power supply of claim 2, wherein: the power supply control system is characterized in that the input end of the power supply control is connected with a station management power supply (4) through a cable, the output end of the power supply controller (5) is connected with a collection device (6) through a cable, and the output end of the power supply controller (5) is connected with a communication device (7) through a cable.

4. The intelligent controller for power supply of claim 3, wherein: the station management power supply (4) comprises a charging and discharging circuit, one end of the charging and discharging circuit is connected with the storage battery (2) through a cable, and the input end of the charging and discharging circuit is electrically connected with the solar cell panel (1) and the mains supply (3) through cables.

5. The intelligent controller for power supply of claim 4, wherein: the utility power supply (3) is electrically connected with the station management power supply (4) through a voltage reduction circuit, and the solar cell panel (1) is electrically connected with the station management power supply (4) through a voltage stabilizing circuit.

6. The intelligent controller for power supply of claim 5, wherein: when the power controller (5) detects that the voltage of the storage battery (2) is reduced to 11.5v, the power controller (5) cuts off the power supply to the communication equipment (7), and when the power controller (5) detects that the voltage of the storage battery is reduced to 10.9v, the power controller (5) cuts off the power supply to the acquisition equipment (6); when the power controller (5) detects that the voltage of the storage battery is recovered to 12.5v, the two output ends simultaneously supply power to the communication equipment (7) and the acquisition equipment (6).