CN112526914B - Low-power-consumption management flow method for milliampere-level data acquisition unit - Google Patents
Low-power-consumption management flow method for milliampere-level data acquisition unit Download PDFInfo
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- CN112526914B CN112526914B CN202011517779.6A CN202011517779A CN112526914B CN 112526914 B CN112526914 B CN 112526914B CN 202011517779 A CN202011517779 A CN 202011517779A CN 112526914 B CN112526914 B CN 112526914B
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- G05B19/00—Programme-control systems
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Abstract
The invention discloses a low-power consumption management flow method for a milliampere-level data acquisition unit, which comprises a data acquisition unit, a power supply unit and a power supply unit, wherein the data acquisition unit is provided with a plurality of data acquisition channels, an analog input signal circuit, a digital input signal circuit and a digital output control circuit, and is connected with external equipment, a hardware clock circuit, a hardware interrupt wake-up circuit, a startup wake-up circuit and a reset wake-up circuit which are connected with the data acquisition unit; the method can design a low-power-consumption management flow aiming at the data acquisition, operation, communication and other business functions of the data acquisition unit and the working modes of intermittent dormancy, interrupt awakening and the like, and realize the mA-level average power consumption.
Description
Technical Field
The invention belongs to the field of power system state detection, and particularly relates to a flow design of low-power-consumption operation management.
Background
The state monitoring of the power system is a necessary means for ensuring the healthy operation of the power system, and due to the complexity of the laying environment of terminal power equipment, the arrangement of a wired stable power supply of an online state monitoring device is often difficult in practice, and the modes of utilizing a storage battery, solar energy, CT (current transformer) for power taking and the like are convenient and fast but have a plurality of limitations. Therefore, higher requirements are put on the power consumption of a state monitoring device of the terminal, such as a data acquisition unit DTU.
The DTU is used as a terminal signal acquisition device, needs to be provided with a plurality of signal acquisition channels, has certain data operation capacity, supports remote data transmission and realizes information interaction with a background monitoring platform. In order to ensure the reliability of online monitoring, the system generally operates in an active direct current power supply mode, can support long-term online operation, and does not need to consider the problem of power consumption.
The present wireless power thing networking is progressively being carried out, and terminal equipment's access is more diversified, and the convenience of wireless communication and wireless electricity-taking mode obtains the recognition, and this just requires DTU to adopt lower consumption design to satisfy and practice thrift the power supply, guarantee the longer operating time of DTU, consequently under current technique and cost condition, need look for new mode and method.
Disclosure of Invention
In view of the above, there is a need to overcome at least one of the above-mentioned deficiencies in the prior art. The invention provides a low-power consumption management process method for a milliampere data acquisition unit, which comprises the following steps:
the device comprises a data acquisition unit with a plurality of data acquisition channels, an analog input signal circuit, a digital input signal circuit and a digital output control circuit, wherein the data acquisition unit is connected with external equipment (such as a sensor and the like), a hardware clock circuit, a hardware interrupt wake-up circuit, a startup wake-up circuit and a restart reset wake-up circuit;
the flow method comprises the following steps:
a start-up period: when the system is started, the data acquisition unit receives a signal of a startup wake-up circuit from a shutdown mode and enters a startup wake-up mode, the bottom layer of the data acquisition unit is in drive communication with the hardware clock circuit, the hardware interrupt wake-up circuit, the startup wake-up circuit and the restart reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is the startup wake-up, performs an event processing program, automatically executes a complete service once and judges whether data output control exists or not, and if not, the data acquisition unit starts the hardware clock circuit, enters a hardware timing period and enters a full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
a restart period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the data acquisition unit receives a reset wake-up signal of the reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is reset wake-up, carries out an event processing program, automatically executes a complete service once, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware timed wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, when the hardware clock finishes a timing cycle, sending a hardware timing starting signal to the data acquisition unit, judging that the wake-up signal is a hardware timing wake-up signal by the data acquisition unit, executing a preset service related to the hardware timing wake-up signal, judging whether data output control exists or not, if not, starting a hardware clock circuit, entering a hardware timing period, and entering the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware interrupt wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the hardware interrupt circuit receives a trigger signal from external equipment, and then sends a hardware interrupt wake-up signal to the data acquisition unit, the data acquisition unit judges that the wake-up signal is the hardware interrupt wake-up signal, executes preset services related to the hardware interrupt wake-up signal, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for the software timer or a preset wake-up circuit to wake up.
The system supports six working modes of Run (full-speed operation), Idle, LightSleep, deep sleep, StandBy and ShutDown, and all the peripheral equipment are opened and Run at high speed under the Run mode; and the device runs at low speed in other modes, part of the peripheral equipment is opened, and once the device enters the Standby mode, the context of the device is lost, and only the RTC hardware clock and part of special hardware interrupt wake-up signals are reserved.
Wherein, the LightSleep mode stops the CPU and stops partial clocks and peripherals; in a deep sleep mode, the CPU stops and only a few low-power-consumption peripherals work; in a StandBy full sleep mode, a CPU stops and the context of the equipment is lost; the peripheral equipment refers to all equipment except the CPU, and the equipment comprises flash, ADC, GPRS, RS232/485, LED and the like; the special hardware interruption is reserved multi-path IO interruption awakening, mainly comprises vibration awakening and is used for timely detecting and early warning vibration events such as external damage, stealing and cutting and the like.
The technical scheme provides a new design scheme, aiming at the service functions of data acquisition, operation, communication and the like of a data acquisition unit and the working modes of intermittent dormancy, interruption awakening and the like, a low-power-consumption management flow is designed, and the mA-level average power consumption is realized.
In addition, the low-power consumption management flow method of the milliampere-level data acquisition unit disclosed by the invention also has the following additional technical characteristics:
furthermore, the complete service includes data acquisition, data operation, data caching, data uploading service and data output control.
Further, the system initialization comprises parameter configuration loading, interrupt registration and thread creation.
Furthermore, the hardware interrupt circuit is connected with a state monitoring circuit, and the state monitoring circuit comprises a temperature sudden change detection circuit and a voltage zero-approaching detection circuit.
The hardware interrupt circuit is used for responding sudden changes of important state quantities, such as temperature sharp increase, voltage zero trend and the like, and responding to timely warning of rapid deterioration of the state of the power device, so that a corresponding detection circuit is required to be connected.
Furthermore, the data acquisition unit comprises a single chip microcomputer which is provided with 16 paths of data acquisition channels and supports three types of state detection or output control of analog input signals, digital input signals and digital output.
And in the aspect of service function, signal acquisition or control, data caching, data operation, data communication, working condition self-checking and the like are supported. The system supports six working modes of Run (full-speed operation), Idle, LightSleep, deep sleep, StandBy and ShutDown, and all the peripheral equipment are opened and Run at high speed under the Run mode; and the device runs at low speed in other modes, part of the peripheral equipment is opened, and once the device enters the Standby mode, the context of the device is lost, and only the RTC hardware clock and part of special hardware interrupt wake-up signals are reserved.
Furthermore, when the data acquisition unit executes the service, only the power supply switch of the component executing the corresponding task is turned on.
When the data acquisition unit executes related services, the power supply of related peripheral equipment is dynamically switched on and off so as to save power consumption, and for example, when signal acquisition is carried out, only the ADC (analog to digital converter) and the like are switched on for power supply; when data is cached, only power supply such as flash is turned on; and when the data is uploaded, only the transmitting power supply of the communication module is started, and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart illustrating operation of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention has the following conception that aiming at the service functions of data acquisition, operation, communication and the like of the data acquisition unit and the working modes of intermittent dormancy, interruption awakening and the like, the management flow with low power consumption is designed, and the average power consumption of mA level is realized.
The aligning device for the steel sheets according to the present invention will be described with reference to the accompanying drawings, wherein fig. 1 is a schematic operation flow diagram of an embodiment of the present invention.
As shown in fig. 1, the embodiment of the present invention includes a data acquisition unit having multiple data acquisition channels, an analog input signal circuit, a digital input signal circuit, and a digital output control circuit, wherein the data acquisition unit is connected to an external device, a hardware clock circuit, a hardware interrupt wake-up circuit, a power-on wake-up circuit, and a reset wake-up circuit;
the process method comprises the following steps:
a start-up period: when the system is started, the data acquisition unit receives a signal of a startup wake-up circuit from a shutdown mode and enters a startup wake-up mode, the bottom layer of the data acquisition unit is in drive communication with the hardware clock circuit, the hardware interrupt wake-up circuit, the startup wake-up circuit and the restart reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is the startup wake-up, performs an event processing program, automatically executes a complete service once and judges whether data output control exists or not, and if not, the data acquisition unit starts the hardware clock circuit, enters a hardware timing period and enters a full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
a restart period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the data acquisition unit receives a reset wake-up signal of the reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is reset wake-up, carries out an event processing program, automatically executes a complete service once, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware timed wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, when the hardware clock finishes a timing cycle, sending a hardware timing starting signal to the data acquisition unit, judging that the wake-up signal is a hardware timing wake-up signal by the data acquisition unit, executing a preset service related to the hardware timing wake-up signal, judging whether data output control exists or not, if not, starting a hardware clock circuit, entering a hardware timing period, and entering the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware interrupt wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the hardware interrupt circuit receives a trigger signal from external equipment, and then sends a hardware interrupt wake-up signal to the data acquisition unit, the data acquisition unit judges that the wake-up signal is the hardware interrupt wake-up signal, executes preset services related to the hardware interrupt wake-up signal, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for the software timer or a preset wake-up circuit to wake up.
In addition, the low-power-consumption management flow method for the milliampere-level data acquisition unit disclosed by the invention also has the following additional technical characteristics:
according to the embodiment of the invention, the complete service comprises data acquisition, data operation, data caching, data uploading service and data output control.
According to the embodiment of the invention, the system initialization comprises parameter configuration loading, interrupt registration and thread creation.
According to an embodiment of the present invention, the hardware interrupt circuit is coupled to a status monitoring circuit, and the status monitoring circuit includes a temperature jump detection circuit and a voltage zero-crossing detection circuit.
According to the embodiment of the invention, the data acquisition unit comprises a single chip microcomputer which is provided with 16 paths of data acquisition channels and supports three types of state detection or control output of analog input signals, digital input signals and digital output control.
According to some embodiments of the invention, the data acquisition unit only turns on the power supply switch of the component performing the corresponding task when performing the service.
Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. This schematic representation in various places throughout this specification does not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
While specific embodiments of the invention have been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention. Except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.
Claims (6)
1. A milliampere level data acquisition unit low-power consumption management flow method is characterized by comprising a data acquisition unit which is provided with a plurality of data acquisition channels, an analog input signal circuit, a digital input signal circuit and a digital output control circuit, wherein the data acquisition unit is connected with external equipment, a hardware clock circuit, a hardware interrupt wake-up circuit, a startup wake-up circuit and a reset wake-up circuit, wherein the hardware clock circuit, the hardware interrupt wake-up circuit, the startup wake-up circuit and the reset wake-up circuit are connected with the data acquisition unit;
the flow method comprises the following steps:
a start-up period: when the system is started, the data acquisition unit receives a signal of a startup wake-up circuit from a shutdown mode and enters a startup wake-up mode, the bottom layer of the data acquisition unit is in drive communication with the hardware clock circuit, the hardware interrupt wake-up circuit, the startup wake-up circuit and the restart reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is the startup wake-up, performs an event processing program, automatically executes a complete service once and judges whether data output control exists or not, and if not, the data acquisition unit starts the hardware clock circuit, enters a hardware timing period and enters a full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
a restart period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the data acquisition unit receives a reset wake-up signal of the reset wake-up circuit, the system is initialized, the data acquisition unit judges that the wake-up signal is reset wake-up, carries out an event processing program, automatically executes a complete service once, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware timed wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, when the hardware clock finishes a timing cycle, sending a hardware timing starting signal to the data acquisition unit, judging that the wake-up signal is a hardware timing wake-up signal by the data acquisition unit, executing a preset service related to the hardware timing wake-up signal, judging whether data output control exists or not, if not, starting a hardware clock circuit, entering a hardware timing period, and entering the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
hardware interrupt wakeup period: when the system is in a shallow sleep mode, a deep sleep mode or a full sleep mode, the hardware interrupt circuit receives a trigger signal from external equipment, and then sends a hardware interrupt wake-up signal to the data acquisition unit, the data acquisition unit judges that the wake-up signal is the hardware interrupt wake-up signal, executes preset services related to the hardware interrupt wake-up signal, judges whether data output control exists or not, and if not, starts a hardware clock circuit, enters a hardware timing period and enters the full sleep mode; if the data output control is carried out, starting software timing, delaying to carry out the data output control, entering a deep sleep mode after the execution is finished, and waiting for a software timer or a preset wake-up circuit to wake up;
wherein, in the shallow sleep mode, the CPU stops, and part of the clock and the peripheral stops; in the deep sleep mode, the CPU stops and only a few low-power-consumption peripherals work; full sleep mode, CPU stops, device context is lost.
2. The milliamp-level data collection unit low power consumption management flow method of claim 1, wherein the complete service comprises data collection, data operation, data caching, data upload service, and data output control.
3. The milliamp-level data acquisition unit low power consumption management flow method of claim 1, wherein the system initialization comprises parameter configuration loading, interrupt registration, thread creation.
4. The milliamp-level data acquisition unit low-power consumption management flow method of claim 1, wherein the hardware interrupt circuit is coupled to a state monitoring circuit, and the state monitoring circuit comprises a temperature jump detection circuit and a voltage zero-crossing detection circuit.
5. The milliamp-level data acquisition unit low-power-consumption management flow method according to claim 1, wherein the data acquisition unit comprises a single chip microcomputer which has 16 data acquisition channels and supports three types of state detection or output control, namely analog input signals, digital input signals and digital output control.
6. The milliamp-level data acquisition unit low-power-consumption management flow method according to claim 1, wherein when the data acquisition unit executes a service, only a power supply switch of a component executing a corresponding task is turned on.
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