CN114698072B - Low-power-consumption circuit of WIA-PA wireless vibration transmitter and control method - Google Patents
Low-power-consumption circuit of WIA-PA wireless vibration transmitter and control method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a low-power-consumption circuit of a WIA-PA wireless vibration transmitter and a control method thereof. The low-power consumption circuit comprises a clock circuit, a power supply control circuit and a communication circuit between the power supply control and the processor, the wireless transceiver and the clock circuit, wherein the power supply circuit automatically judges the working process of the wireless vibration transmitter through signal interaction among the power supply circuit, the processing circuit, the wireless transceiver and the clock circuit; and the working power supplies of the sensor, the signal processing, the analog-to-digital conversion, the processor and the peripheral FLASH and SRAM are controlled to be turned on and off according to the judging result, so that the power consumption of the transmitter is ensured to be reduced to the minimum in a non-working period, and the service life of the battery is prolonged. The low power consumption control method comprises the following steps: the method comprises the steps of initializing the power-on parameters of the vibration transmitter, automatically starting and collecting the period, wirelessly transmitting the period, remotely wirelessly and immediately collecting the period and the like, automatically judging and identifying various working states, controlling the on-off of the power supply of each circuit module according to the operation flow of each working state, and realizing the design of ultra-low power consumption.
Description
Technical Field
The invention relates to a low-power-consumption circuit and a control method thereof, which are particularly suitable for wireless instruments needing rapid large-data-volume acquisition and processing calculation, such as wireless vibration transmitters for fault diagnosis, predictive maintenance and the like.
Background
In the industrial fields of petrochemical industry and the like, the state monitoring and fault diagnosis of mechanical equipment such as pumps are particularly important. The machine pump vibration state monitoring and fault diagnosis technology has important significance for ensuring stable, safe and efficient operation of equipment, reducing unplanned shutdown in the production process and preventing safety accidents. The vibration transmitter is arranged on the surface of the mechanical equipment, the acceleration sensor which is directly arranged on the surface of the mechanical pump senses equipment vibration signals, high-speed collection and operation of a large amount of data are executed, whether the state of the equipment reaches a threshold value is judged, meanwhile, the data are transmitted to the fault diagnosis system, and parts with faults or reduced performance are predicted, so that danger and economic loss caused by unnecessary shutdown are avoided.
Along with the development of industrial wireless technology, the vibration transmitter combined with the industrial wireless technology and battery power can solve the application problems of complex installation and wiring of a wired instrument, poor expandability of a newly added point and the like. However, in the diagnosis process, high-speed processors such as a DSP (digital signal processor) are required to be used for acquisition of large data volume, operation processing of time domain and frequency domain and the like, and the deep sleep current of the processor still reaches a plurality of mA (mA) levels, so that most of batteries are consumed on static current, and the service life of the batteries is directly influenced.
Most wireless vibration transmitters are realized by selecting low-power-consumption embedded processors to solve the power consumption problem, so that the calculation speed, the main frequency and the storage space are greatly reduced, the execution time of data processing operation on signals is long, the data acquisition and operation of a plurality of periods cannot be performed due to insufficient buffering, the data acquired by a diagnosis system is insufficient to support a fine diagnosis algorithm, the fault diagnosis is reduced to be applied to state trend monitoring, and the application effect of the system is greatly reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-power-consumption circuit of a wireless vibration transmitter and a control method thereof, which not only meet the requirements of fault diagnosis data acquisition and processing, but also greatly reduce the power consumption of an instrument and meet the application requirements of a wireless vibration monitoring and fault diagnosis system powered by a battery.
The technical scheme adopted by the invention for achieving the purpose is as follows: a low power circuit for a WIA-PA wireless vibration transmitter comprising:
The comparator circuit is used for monitoring that the power supply voltage of the power supply control circuit reaches a set threshold value and then outputting an initial power-on signal so as to trigger initial power-on operation logic of the power supply control circuit;
The clock circuit is used for receiving configuration parameters of the processor when the power is initially on, and generating a timing interrupt signal according to the timing period of the configuration parameters so as to trigger the timing period interrupt operation logic of the power supply control circuit;
The wireless transceiver circuit is used for analyzing the data packet received by the wireless network, and outputting a wake-up signal of the wireless transceiver circuit when the data packet is analyzed to be the instrument operation so as to trigger the wireless remote operation logic of the power supply control circuit;
The processor is used for transmitting the configuration parameters to the clock circuit and executing the complete operation processes of data acquisition, operation and wireless remote transmission; triggering the processor to complete the IO signal to inform the power supply control circuit after completion;
The power supply control circuit is used for detecting a clock circuit timing interrupt signal, an initial power-on signal, a wireless receiving and transmitting circuit wake-up signal, a processor completion IO signal and an internal timer interrupt signal, and controlling the on-off of the power supply of the equipment according to respective logic.
The clock circuit timing interrupt signal, the wireless receiving and transmitting circuit wake-up signal and the processor completion IO signal are IO signals, and the signals are isolated through a buffer respectively.
The power supply control circuit controls the power on and off of the sensor, the signal processor and the analog-to-digital converter which are sequentially connected through controlling the analog power supply;
the sensor, the analog-to-digital converter and the signal processor are used for data acquisition.
The power supply control circuit controls the power on and power off of the processor by controlling the digital power supply.
The low-power-consumption circuit control method of the WIA-PA wireless vibration transmitter comprises the following steps:
The comparator circuit monitors that the power supply voltage of the power supply control circuit reaches a set threshold value and then outputs an initial power-on signal so as to trigger initial power-on operation logic of the power supply control circuit;
the clock circuit receives configuration parameters of the processor when the power is initially on, and periodically generates a timing interrupt signal according to the configuration parameters so as to trigger a timing period interrupt operation logic of the power supply control circuit;
the wireless receiving and transmitting circuit analyzes the data packet received by the wireless network, and outputs a wireless receiving and transmitting circuit wake-up signal when the data packet is analyzed to be the instrument operation so as to trigger the wireless remote operation logic of the power supply control circuit;
The processor issues configuration parameters to the clock circuit, and executes a complete operation process of data acquisition, operation and wireless remote transmission; triggering the processor to complete the IO signal to inform the power supply control circuit after completion;
the power supply control circuit detects a clock circuit timing interrupt signal, an initial power-on signal, a wireless receiving and transmitting circuit wake-up signal, a processor completion IO signal and an internal timer interrupt signal, and controls the on-off of the power supply of the equipment according to respective logic.
The power control circuit performs the steps of:
1) The method comprises the steps that an initial power-on signal is detected, an initial power-on operation logic is triggered, a control processor, a clock circuit, a wireless transceiver circuit and a comparator circuit are powered on, the processor is informed of the current initial power-on state through IO, and the internal timers of the clock circuit and a power supply control circuit are required to be initialized;
2) Receiving a timing interrupt signal of a clock circuit, wherein the interrupt signal is an interrupt signal which is generated when the timing time is up and is generated when the clock circuit receives configuration parameters and enables interrupt;
3) Detecting a timing interrupt signal of a clock circuit, triggering a timing period acquisition operation when the timing interrupt signal is effective, and controlling a processor to be electrified so as to execute a complete data operation;
4) Detecting a wireless transceiver circuit wake-up signal of the wireless transceiver circuit, triggering wireless remote wake-up operation when the wireless transceiver circuit wake-up signal is valid, and controlling the processor to power on so as to execute one-time remote operation or remote instant acquisition operation;
5) Detecting an internal timer interrupt signal, triggering a timing period acquisition operation when the interrupt signal is valid, and controlling a processor to be electrified so as to execute a complete data operation;
6) And the detection processor completes the IO signal, and controls the processor to be powered off when the IO signal is completed effectively, so that the processor, the FLASH, the SRAM and the analog-to-digital converter which are connected with the processor, and the signal processor and the vibration sensor which are sequentially connected with the analog-to-digital converter are in a power-off state.
The processor performs the steps of:
After the processor is powered on and initialized, judging whether the power-on state is the initial power-on state or not through an input IO with a power control circuit; if yes, loading configuration parameters and transmitting the configuration parameters to a clock circuit and a power supply control circuit for timing interruption; if not, executing the next step;
If the wireless receiving and transmitting circuit data packet is received, judging whether the wireless receiving and transmitting circuit data packet is a remote parameter configuration operation; if the remote parameter configuration is the remote parameter configuration, analyzing and receiving the remote configuration parameter, and simultaneously issuing the remote configuration parameter to a clock circuit and a power supply control circuit when the timing parameter is updated, and then storing all parameters into FLASH; if not, executing the next step;
the processor executes a complete data operation process of data acquisition, operation and wireless remote transmission once; after completion, the processor is triggered to complete the IO signal to inform the power control circuit so as to indicate that the processor has completed the operation and is powered off.
The wireless transceiver circuit performs the steps of:
after the wireless receiving circuit is powered on, network access operation is executed, and after network access, sending, receiving or dormancy operation is executed according to time slots;
When a wireless data packet is received, the data packet is analyzed; if the instruction is a remote operation or instant acquisition instruction of the instrument, triggering the IO signal as a wireless transceiver circuit wake-up signal to inform the power supply control circuit so as to execute remote data operation;
when receiving a data packet sent by a processor, sending the data packet to a WIA-PA network according to a sending time slot; after data receiving and transmitting are completed, the device enters a dormant state.
The invention has the following beneficial effects and advantages:
1. The invention designs the low-power-consumption power supply control circuit of the whole transmitter by adopting the clock chip and combining the programmable logic CPLD, thereby realizing the low-power-consumption application of the DSP controller of the high-speed processor, greatly reducing the power consumption of equipment and prolonging the service life of a battery. The vibration state monitoring and fault diagnosis system of the mechanical equipment is applied, and the wireless on-line monitoring and predictive maintenance of the pump are realized.
2. The invention designs a low-power consumption control method, which realizes the design and application of the wireless transmitter without reducing the performance index of the wired vibration transmitter by automatically identifying the working states of the wireless vibration transmitter such as initial power-on, normal work, instant acquisition and the like, and further accurately controlling the power on-off of a processor circuit, a sensor circuit, a signal conditioning circuit, an analog-to-digital conversion circuit and the like in the transmitter.
Drawings
FIG. 1 is a block diagram of a wireless vibration transmitter system having power control circuitry;
FIG. 2 is a schematic block diagram of a low power circuit design of a power control circuit;
The power supply control circuit 1, the clock circuit 2, the on-board power bus 3, the sensor 4, the signal processing circuit 5, the analog-to-digital conversion circuit 6, the FLASH circuit 7, the external expansion cache SRAM circuit 8, the processor 9, the wireless transceiver circuit 10, the battery pack 11, the analog power supply 12, the digital power supply 13, the processor core power supply 14, the processor peripheral power supply 15, the power supply monitoring and power-on reset unit 16 and the comparator 17;
FIG. 3 is a flow chart of a control method of the power control module;
FIG. 4 is a flow chart of a processor low power control of a wireless vibration transmitter;
FIG. 5 is a flow chart of a wireless transceiver module low power control of a wireless vibration transmitter.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention relates to a low-power-consumption circuit based on a battery-powered WIA-PA wireless vibration transmitter and a control method. The low-power consumption circuit comprises a clock circuit, a power supply control circuit and a communication circuit between the power supply control and the processor, the wireless transceiver and the clock circuit, wherein the power supply circuit automatically judges the working process of the wireless vibration transmitter through signal interaction among the power supply circuit, the processing circuit, the wireless transceiver and the clock circuit; and the working power supplies of the sensor, the signal processing, the analog-to-digital conversion, the processor and the peripheral FLASH and SRAM are controlled to be turned on and off according to the judging result, so that the power consumption of the transmitter is ensured to be reduced to the minimum in a non-working period, and the service life of the battery is prolonged. The low power consumption control method comprises the following steps: the method comprises the steps of initializing the power-on parameters of the vibration transmitter, automatically starting and collecting the period, wirelessly transmitting the period, remotely wirelessly and immediately collecting the period and the like, automatically judging and identifying various working states, controlling the on-off of the power supply of each circuit module according to the operation flow of each working state, and realizing the design of ultra-low power consumption.
The low-power consumption control circuit provided by the invention can flexibly control the non-working period power supply of the high-power consumption device to be powered off, reduce the current consumption of equipment, and ensure that the high-speed processor with high dormancy current can meet the application of the low-power consumption wireless instrument. The low-power WIA-PA wireless transceiver module is combined, so that the remote operation and data acquisition can be realized in real time, and the operation processing capacity and the real-time response capacity of the instrument are not reduced.
The low-power consumption control circuit comprises a power supply control circuit, a clock circuit, a wireless receiving and transmitting circuit, a comparator circuit, a processor circuit and the like, wherein the power supply control circuit detects a clock circuit timing interrupt signal, an initial power-on signal, a wireless receiving and transmitting circuit wake-up signal, a processor completion interrupt signal and an internal timer interrupt signal, and controls the on-off of a power supply of equipment according to respective logic, so that the purpose of reducing power consumption is achieved.
The power supply control circuit is connected with the clock circuit, the wireless receiving and transmitting circuit, the comparator circuit, the processor circuit, the sensor, the signal processing circuit, the analog-to-digital conversion circuit, the FLASH and the SRAM, and the sensor, the signal processing circuit, the analog-to-digital conversion circuit and the processor circuit are sequentially connected with each other, and the FLASH and the SRAM are connected with the processor circuit.
The power supply control circuit, the clock circuit and the wireless receiving and transmitting circuit are all designed with low power consumption, and are powered on continuously, and the non-working period enters a dormant state to save power consumption.
The power supply control circuit is realized by adopting a CPLD logic device, and the characteristics of low power consumption and parallel and rapid execution are satisfied.
The clock circuit is realized by using a low-power RTC clock chip, receives initial configuration of a processor when the power is initially on, generates an interrupt according to a configuration timing period, and triggers a timing period interrupt operation logic of the power supply control circuit.
The initial power-on trigger signal is realized through a comparator, and the comparator monitors that the power supply voltage of the power supply control circuit reaches a set threshold value and then the output IO signal is effective, so as to trigger the initial power-on operation logic of the power supply control circuit.
The remote wireless operation and the real-time acquisition of signals are realized through a WIA-PA wireless transceiver circuit, the wireless transceiver circuit analyzes a data message received by a wireless network, and when the data message is an instrument operation, the IO signal effective level is output to trigger the wireless remote operation logic of the power supply control circuit.
And the processor finishing signal is realized through IO between the processor and the power supply control circuit, and after the processor finishes program processing, the processor outputs an IO signal to inform the power supply control circuit to trigger the processor to finish operation logic.
The internal timer interrupt is generated by the power control circuit CPLD internal timer and is used for the application when the external clock circuit interrupt cannot meet the timing period. The power supply control circuit loads an internal timer according to the configuration parameters of the processor and periodically generates an interrupt signal to trigger the interrupt operation logic of the internal timer.
The processor and the power supply control circuit are powered in different conditions, so that all IO signals between the processor and the power supply control circuit are subjected to signal isolation by a buffer, and unnecessary power consumption is generated by current backflow.
The invention also provides a control method based on the low-power-consumption circuit.
The power control circuit logic in the low power consumption control method comprises the following steps:
① The power control circuit, the clock circuit and the wireless transceiver circuit are powered on initially;
② The power supply control circuit detects an initial power-on signal, triggers initial power-on operation logic, controls the processor and other circuits to power on, informs the processor of the current initial power-on state through IO, and needs to perform initialization operation on timers inside the clock circuit and the power supply control circuit;
③ The clock circuit receives the configuration parameters and enables interruption, and when the timing time is up, an interruption signal is generated to the power supply control circuit;
④ The power supply control circuit detects a clock circuit timing interrupt signal, triggers a timing period acquisition operation when the signal is effective, controls the power-on of the processor and the peripheral circuit, and executes a complete data operation;
⑤ The power supply control circuit detects an IO wake-up signal of the wireless transceiver circuit, triggers wireless remote wake-up operation when the signal is effective, controls the power-on of the processor and the peripheral circuit, and executes one-time remote operation or remote instant acquisition operation;
⑥ The power supply control circuit detects an internal timer interrupt signal, triggers a timing period acquisition operation when the signal is effective, controls the power-on of the processor and the peripheral circuit, and executes a complete data operation;
⑦ The power supply control circuit detects that the processor finishes IO signals, and the processor and the peripheral circuit are controlled to be powered off when the signals are effective, so that the power supply control circuit enters a low-power consumption state: the processor, the vibration sensor, the signal processing and analog-to-digital conversion circuit of the whole instrument, and the FLASH and the SRAM which are connected with the processor are all in a power-off state.
The operation steps of the processor in the low power consumption control method comprise:
After the processor is powered on and initialized, judging whether the power is in an initial power-on state or not through an input IO between the processor and the power control circuit, and if so, loading configuration parameters and issuing the configuration parameters to the clock circuit and the power control circuit for timing interruption; if not, skipping the step, and executing the following operations;
If a wireless receiving and transmitting circuit data packet is received, judging whether the remote parameter configuration operation is performed or not; if the remote parameter configuration is performed, analyzing the received configuration parameters, and if the timing parameters are updated, simultaneously transmitting the configuration parameters to a clock circuit and a power supply control circuit, and then storing all the parameters to FLASH; if not, skipping the step, and executing the following operations;
The processor executes a complete operation process of data acquisition, operation and wireless remote transmission once;
and triggering an IO signal to inform the power supply control circuit after the completion, and indicating the processor to complete the operation.
The wireless transceiver circuit in the low power consumption control method executes the following operation steps:
after the wireless receiving circuit is powered on, network access operation is executed, and after network access, sending, receiving or dormancy operation is executed according to time slots;
When a wireless data packet is received, the data packet is analyzed, and if the data packet is a remote operation or instant acquisition instruction of the instrument, an IO signal is triggered to inform a power supply control circuit to execute the remote operation;
when receiving a data packet sent by a processor, sending the data packet to a WIA-PA network according to a sending time slot;
after data receiving and transmitting are completed, the device enters a dormant state.
Fig. 1 is a block diagram of a wireless vibration transmitter system with a power control circuit, comprising a power control circuit 1, a clock circuit 2, a vibration sensor 4, a signal processing circuit 5, an analog-to-digital conversion circuit 6, a flash circuit 7, a flash cache SRAM circuit 8, a processor circuit 9, and a wireless transceiver circuit 10. The power supply control 1 circuit is realized by using a logic device CPLD; clock circuit 2 is implemented using an integrated RTC clock chip, in the embodiment shown DS1306; the power supply control circuit is matched with the RTC clock chip to control the on-off of the power supply of each circuit module, so that the low-power consumption design is realized. IO signals for state indication and control are designed among the power supply control circuit 1, the processor circuit 9, the wireless receiving and transmitting circuit 10 and the clock circuit 2, and the IO signals and the processor circuit 9 are provided with 1 group of SPI data communication buses for information interaction. Because the power control circuit 1, the wireless transceiver module 10 and the clock circuit 2 on the single board are powered on during the non-working period, and the processor circuit 9 and other circuits all process the power-down state, the IO signals so far are all designed into BUFFER circuits, thereby avoiding the generation of extra current consumption of current backflow and reducing the service life of the battery.
Fig. 2 is a schematic block diagram of a low power design of the power supply control circuit, referring to the power supply control circuit 1 in fig. 1. The battery pack 11 is a power supply of the transmitter, and the on-board power supply processing comprises an analog power supply 12, a digital power supply 13, a processor nuclear power supply 14 and a processor peripheral power supply 15. The digital power supply 13 is a normal power supply on a single board and is used for supplying power to the RTC clock circuit 2 and the power supply control circuit 1, such as a 3V3_VCC network in the figure; using a DCDC chip implementation with low power consumption, such as LTC1877. The power supply control circuit 1 passes through status signals of the respective power supplies on the IO access board, such as 1v2_pwrok, 3v3_pwrok, and the like shown in fig. 2; the simultaneous output signals control the enable signals of the respective power supplies, such as 1v2_en, 3v3_en, 5v0_va_en, and the like, as shown in fig. 2. The voltage comparator 17 is used for monitoring the state of each power supply in the transmitter, and the power supply control circuit 1 recognizes whether the initial power-on is realized through the voltage comparator 17 or not, and the principle is that the high-level IO signal is output after the voltage reaches the threshold value; the voltage comparator is a long power supply device and is implemented by using a low-power consumption device, such as LM7215. The power control circuit 1 uses the CPLD to realize detection and switching of each logic state, and does not use an external crystal oscillator to reduce power consumption. The processor and power supply 14, such as the power network 1v2_vddint_cpu in fig. 2, only powers the processor cores; the power supply network 3v3_vddext_cpu supplies power to the processor peripherals and also to the FLASH, SRAM, RS232 chips. The power supply monitoring and power-on reset unit 16 is implemented by using an application specific integrated chip, monitors that the network voltage of the CPU power supply 3V3_VDDEXT_CPU reaches a threshold value, and outputs RST_PWRON_CPU to be input into a power supply control circuit to control the starting of the CPU. The design idea of the low-power-consumption circuit is as follows: the power supply control circuit 1 is realized by adopting a logic device, and detects a plurality of IO signal states in parallel, wherein the IO signal states comprise an initial power-on signal, a clock circuit 2 interrupt trigger signal, a wireless transceiver circuit 10 wake-up signal and a processor 9 completion signal, and corresponding operations are triggered according to respective logics; after the wireless vibration transmitter finishes the collection and operation work of a fixed time period, the power supply control circuit 1 controls the analog power supply 12, the CPU power supply 14 and the CPU peripheral power supply 15 of the single board to be turned off through the output signals of a plurality of IO, thereby avoiding the static current consumption of a plurality of mA levels still reaching the deep sleep state of the high-speed processor and achieving the purpose of reducing the power consumption. Meanwhile, the low-power-consumption WIA-PA wireless transceiver module 10 in the transmitter also uses the long-power-supply digital power supply 13 to supply power, because the wireless module has a dormancy and synchronization mechanism, the low-power-consumption requirement is met, meanwhile, the wireless vibration transmitter is continuously on the network, IO signals are output during remote operation and real-time acquisition, a power supply control circuit is triggered, and conditions are provided for remote wireless management and real-time operation.
The invention provides a low-power consumption control method which is realized based on the low-power consumption circuit. The embodiment is suitable for the WIA-PA wireless vibration transmitter and also suitable for high-power consumption processor application of big data processing.
Fig. 3 is a flowchart of an operation method of the power supply control circuit in the embodiment. The control method needs to be realized by the cooperation among the processor 9, the power supply control circuit 1 and the wireless transceiver circuit 10.
As shown in fig. 3, the control logic of the power control circuit mainly includes 5:
Firstly, when the comparator 17 detects that the single board is initially electrified, a power switch for controlling the processor and the peripheral circuit is turned on, and the processor is started; and meanwhile, an IO signal is output to indicate the processor, the current starting is the single board initial power-on operation, the processor acquires working parameters or default parameters stored in FLASH, and then configures timing parameters of the power control circuit 1, wherein the timing parameters are used for timing time interval application which cannot be realized by a clock circuit, such as 20 minutes.
Secondly, if the IO signal between the wireless transceiver module 10 and the remote wireless wake-up operation is detected, the processor and the peripheral circuit are controlled to be electrified, and wireless remote parameter maintenance or instant acquisition command is executed.
Thirdly, detecting the timing interrupt signal of the RTC clock through the IO signal between the clock circuit 2, and controlling the processor and the peripheral circuit to be electrified to finish one-time acquisition and operation.
And fourthly, when the timer in the configured power supply control circuit 1 is triggered by the interrupt, the control processor and the peripheral circuit are electrified to complete one-time acquisition and operation.
Fifthly, the IO signal between the CPU and the processor circuit 9 is used for receiving an operation completion signal output by the processor, and then the processor and the peripheral circuit are controlled to be powered down.
Compared with the application of the traditional low-power consumption singlechip, the power supply control circuit 1 is realized by using a CPLD device, is more suitable for parallel judgment of various logics, does not need to design a program executed in a complex sequence, has long operation time and correspondingly increases power consumption.
Fig. 4 is a flow chart of the processor operation of the low power wireless vibration transmitter with power control circuit 1 in an embodiment. The detailed flow is as follows:
after the processor is electrified, an initialization program is executed, and working parameters in the FLASH memory 7 are loaded;
detecting whether an IO pin is initially electrified, and if so, issuing configuration parameters to a power control circuit 1 and a clock circuit 2, wherein the configuration parameters mainly comprise a timing period and interruption initialization of the clock circuit; if the power-on operation is not the initial power-on operation, the data of the wireless transceiver module 10 is received, and the remote parameter maintenance operation or the immediate acquisition operation is analyzed and judged; if the remote parameter maintenance operation is the remote parameter maintenance operation, receiving configuration parameters and storing the configuration parameters into FLASH;
If the remote parameter maintenance is not performed, the timing period is interrupted or the real-time acquisition operation is performed, a data acquisition and processing program is started, and the operation result is transmitted to the central end through the wireless transceiver module 10;
After the data transmission and the integrity check are completed, the configuration parameters are saved and the power control circuit 1 is informed of the completion of the processor.
FIG. 5 is a flow chart of a wireless transceiver circuit 10 of a low power WIA-PA wireless vibration transmitter with a power control circuit according to an embodiment, which comprises the following steps:
after the wireless transceiver module 10 is powered on and initialized, loading the configured operation parameters and operating the WIA-PA networking program;
after network access, the WIA-PA transceiver circuit 10 will wake up to work or sleep according to the time slot;
When the working time slot is in operation, receiving a data message transmitted by the WIA-PA wireless network, and judging whether the data message is an operation instruction for the transmitter processor 9; if yes, driving the IO to trigger corresponding operation logic of the power supply control circuit 1;
after the processor is powered on under the operation of the power supply control circuit 1, the wireless transceiver circuit 10 enters a sleep state again after finishing information interaction with the processor 9;
By the operation, the vibration transmitter can be operated in real time to enter the working state through the WIA-PA wireless network, the design requirement of low power consumption is met, and the service life of a battery is greatly prolonged.
Claims (3)
- A low power consumption circuit of a wia-PA wireless vibration transmitter, comprising:The comparator circuit is used for monitoring that the power supply voltage of the power supply control circuit reaches a set threshold value and then outputting an initial power-on signal so as to trigger initial power-on operation logic of the power supply control circuit;The clock circuit is used for receiving configuration parameters of the processor when the power is initially on, and generating a timing interrupt signal according to the timing period of the configuration parameters so as to trigger the timing period interrupt operation logic of the power supply control circuit;The wireless transceiver circuit is used for analyzing the data packet received by the wireless network, and outputting a wake-up signal of the wireless transceiver circuit when the data packet is analyzed to be the instrument operation so as to trigger the wireless remote operation logic of the power supply control circuit;The processor is used for transmitting the configuration parameters to the clock circuit and executing the complete operation processes of data acquisition, operation and wireless remote transmission; triggering the processor to complete the IO signal to inform the power supply control circuit after completion;The power supply control circuit is used for detecting a clock circuit timing interrupt signal, an initial power-on signal, a wireless transceiver circuit wake-up signal, an IO signal completed by the processor and an internal timer interrupt signal, and controlling the on-off of a power supply of the equipment according to respective logic;The clock circuit timing interrupt signal, the wireless receiving and transmitting circuit wake-up signal and the processor completion IO signal are IO signals, and signal isolation is carried out through a buffer respectively;The power supply control circuit controls the power on and off of the sensor, the signal processor and the analog-to-digital converter which are sequentially connected through controlling the analog power supply;The power supply control circuit controls the power on and power off of the processor by controlling the digital power supply;the power control circuit performs the steps of:1) The method comprises the steps that an initial power-on signal is detected, an initial power-on operation logic is triggered, a control processor, a clock circuit, a wireless transceiver circuit and a comparator circuit are powered on, the processor is informed of the current initial power-on state through IO, and the internal timers of the clock circuit and a power supply control circuit are required to be initialized;2) Receiving a timing interrupt signal of a clock circuit, wherein the interrupt signal is an interrupt signal which is generated when the timing time is up and is generated when the clock circuit receives configuration parameters and enables interrupt;3) Detecting a timing interrupt signal of a clock circuit, triggering a timing period acquisition operation when the timing interrupt signal is effective, and controlling a processor to be electrified so as to execute a complete data operation;4) Detecting a wireless transceiver circuit wake-up signal of the wireless transceiver circuit, triggering wireless remote wake-up operation when the wireless transceiver circuit wake-up signal is valid, and controlling the processor to power on so as to execute one-time remote operation or remote instant acquisition operation;5) Detecting an internal timer interrupt signal, triggering a timing period acquisition operation when the interrupt signal is valid, and controlling a processor to be electrified so as to execute a complete data operation;6) And the detection processor completes the IO signal, and controls the processor to be powered off when the IO signal is completed effectively, so that the processor, the FLASH, the SRAM and the analog-to-digital converter which are connected with the processor, and the signal processor and the vibration sensor which are sequentially connected with the analog-to-digital converter are in a power-off state.
- The low-power-consumption circuit control method of the WIA-PA wireless vibration transmitter is characterized by comprising the following steps of:The comparator circuit monitors that the power supply voltage of the power supply control circuit reaches a set threshold value and then outputs an initial power-on signal so as to trigger initial power-on operation logic of the power supply control circuit;the clock circuit receives configuration parameters of the processor when the power is initially on, and periodically generates a timing interrupt signal according to the configuration parameters so as to trigger a timing period interrupt operation logic of the power supply control circuit;the wireless receiving and transmitting circuit analyzes the data packet received by the wireless network, and outputs a wireless receiving and transmitting circuit wake-up signal when the data packet is analyzed to be the instrument operation so as to trigger the wireless remote operation logic of the power supply control circuit;The processor issues configuration parameters to the clock circuit, and executes a complete operation process of data acquisition, operation and wireless remote transmission; triggering the processor to complete the IO signal to inform the power supply control circuit after completion;the power supply control circuit detects a clock circuit timing interrupt signal, an initial power-on signal, a wireless transceiver circuit wake-up signal, a processor completion IO signal and an internal timer interrupt signal, and respectively controls the on-off of a power supply of the equipment according to respective logic;the power control circuit performs the steps of:1) The method comprises the steps that an initial power-on signal is detected, an initial power-on operation logic is triggered, a control processor, a clock circuit, a wireless transceiver circuit and a comparator circuit are powered on, the processor is informed of the current initial power-on state through IO, and the internal timers of the clock circuit and a power supply control circuit are required to be initialized;2) Receiving a timing interrupt signal of a clock circuit, wherein the interrupt signal is an interrupt signal which is generated when the timing time is up and is generated when the clock circuit receives configuration parameters and enables interrupt;3) Detecting a timing interrupt signal of a clock circuit, triggering a timing period acquisition operation when the timing interrupt signal is effective, and controlling a processor to be electrified so as to execute a complete data operation;4) Detecting a wireless transceiver circuit wake-up signal of the wireless transceiver circuit, triggering wireless remote wake-up operation when the wireless transceiver circuit wake-up signal is valid, and controlling the processor to power on so as to execute one-time remote operation or remote instant acquisition operation;5) Detecting an internal timer interrupt signal, triggering a timing period acquisition operation when the interrupt signal is valid, and controlling a processor to be electrified so as to execute a complete data operation;6) Detecting that the processor finishes the IO signal, and controlling the processor to be powered off when the IO signal is finished to be effective, so that the processor, a FLASH, an SRAM and an analog-to-digital converter which are connected with the processor, and the signal processor and the vibration sensor which are sequentially connected with the analog-to-digital converter are in a power-off state;the processor performs the steps of:After the processor is powered on and initialized, judging whether the power-on state is the initial power-on state or not through an input IO with a power control circuit; if yes, loading configuration parameters and transmitting the configuration parameters to a clock circuit and a power supply control circuit for timing interruption; if not, executing the next step;If the wireless receiving and transmitting circuit data packet is received, judging whether the wireless receiving and transmitting circuit data packet is a remote parameter configuration operation; if the remote parameter configuration is the remote parameter configuration, analyzing and receiving the remote configuration parameter, and simultaneously issuing the remote configuration parameter to a clock circuit and a power supply control circuit when the timing parameter is updated, and then storing all parameters into FLASH; if not, executing the next step;the processor executes a complete data operation process of data acquisition, operation and wireless remote transmission once; after completion, the processor is triggered to complete the IO signal to inform the power control circuit so as to indicate that the processor has completed the operation and is powered off.
- 3. The low power circuit control method of the WIA-PA wireless vibration transmitter of claim 2, wherein the wireless transceiving circuit performs the steps of:after the wireless receiving circuit is powered on, network access operation is executed, and after network access, sending, receiving or dormancy operation is executed according to time slots;When a wireless data packet is received, the data packet is analyzed; if the instruction is a remote operation or instant acquisition instruction of the instrument, triggering the IO signal as a wireless transceiver circuit wake-up signal to inform the power supply control circuit so as to execute remote data operation;when receiving a data packet sent by a processor, sending the data packet to a WIA-PA network according to a sending time slot; after data receiving and transmitting are completed, the device enters a dormant state.
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