CN115278586B - Low-power-consumption wireless data acquisition method - Google Patents

Low-power-consumption wireless data acquisition method Download PDF

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CN115278586B
CN115278586B CN202211205845.5A CN202211205845A CN115278586B CN 115278586 B CN115278586 B CN 115278586B CN 202211205845 A CN202211205845 A CN 202211205845A CN 115278586 B CN115278586 B CN 115278586B
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preset
wireless sensor
wireless
power
data
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CN115278586A (en
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魏家栋
张强
周峰
吕阳
赵爽
刘瑛
郑华雄
吴明明
郑良广
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Ningbo CRRC Times Transducer Technology Co Ltd
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Ningbo CRRC Times Transducer Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • 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
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention discloses a low-power consumption wireless data acquisition method, which relates to the field of wireless sensors, and is characterized in that a preset power supply module is independent from the interior of a wireless sensor, the design mode reduces the protection grade design requirement of the sensor, reduces the volume of the wireless sensor, enables the wireless sensor to be installed at a position with better working condition, enhances the working stability of the sensor, and greatly improves the convenience of subsequent maintenance.

Description

Low-power-consumption wireless data acquisition method
Technical Field
The invention relates to the field of wireless sensors, in particular to a low-power-consumption wireless data acquisition method.
Background
The monitoring of the running state of the train is an important guarantee of the running safety of the railway freight train, the normal work of the sensor is very important for the running safety of the train, the state monitoring of the train (such as the monitoring of environmental data of shaft temperature, pressure, stress and the like) is required before the train starts or in running, and the conventional sensor cannot be installed because only the head of the train can supply power to the railway freight train and other carriages lack a power supply, so that the monitoring of the state of the carriages is very limited, and the potential safety hazard is very large. Some existing wireless sensor networks have the defects of long-distance wired power supply (or battery power supply), large volume, inconvenient replacement and maintenance, large power consumption of real-time monitoring, untimely reported data and the like.
Disclosure of Invention
In order to reduce the volume of a wireless sensor and realize self-power supply and simultaneously reduce the power consumption of real-time monitoring, the invention provides a low-power-consumption wireless data acquisition method, which acquires environmental data by a wireless sensor connected with a preset power supply module by using the low-power-consumption acquisition method;
the preset power supply module comprises:
the vibration energy collector is used for converting vibration energy into electric energy when vibration is generated in the installation environment;
the power supply management chip is connected with the vibration energy collector and is used for receiving the electric energy in the vibration energy collector and inputting the electric energy into the power supply chip in the wireless sensor;
the wireless sensor includes:
the power supply chip is used for converting electric energy into digital voltage with a preset amplitude and inputting the digital voltage as the rear-end digital voltage in the wireless sensor, and the input end of the rear-end digital voltage comprises a digital power supply pin of the MCU controller;
the analog voltage conversion circuit is connected with the power supply chip and used for converting digital voltage in the power supply chip into analog voltage and then inputting the analog voltage as rear-end analog voltage in the wireless sensor, wherein the input end of the rear-end analog voltage comprises an analog power supply pin of the MCU controller;
the control board comprises an MCU controller and an RTC clock crystal; the MCU controller is burnt with a compiled preset program which runs in the MCU controller; the RTC clock crystal is used for setting the periodic operation time of the wireless sensor and awakening the wireless sensor when the operation time is up;
the Lora module is connected with the control panel;
the low-power-consumption acquisition method comprises the following steps:
s1: acquiring the power-on time of the wireless sensor through a preset program, judging whether the power-on time is less than the preset time, if not, acquiring environmental data, analyzing the environmental data, judging whether the environmental data is greater than or less than a corresponding alarm threshold value, and if not, entering the next step;
s2: judging whether the set data reporting time is reached or not through a preset program, if so, sending the environmental data to a preset Lora wireless gateway through a Lora module, sending the environmental data to an upper computer through the preset Lora wireless gateway, and entering the next step; if not, directly entering the next step;
s3: judging whether the power-on time is less than the preset time through a preset program, if so, returning to the step S1, otherwise, controlling the MCU controller to enter a dormant state through the preset program and closing an acquisition circuit in the wireless sensor;
s4: and judging whether the running time of the wireless sensor is reached or not through a preset program, if so, awakening the dormant wireless sensor through an RTC clock crystal, and returning to the step S1.
Further, the low power consumption acquisition method further includes:
the method comprises the steps of establishing a protocol layer, namely, appointing a format and content of data transmission between a preset program and an upper computer, and setting an analysis method, wherein the analysis method is used for analyzing data content reported by the wireless sensor to the upper computer and data content sent to the wireless sensor by the upper computer, and the data content comprises temperature and time information sent to a preset Lora wireless gateway by the upper computer in real time and parameter configuration data of the wireless sensor.
Further, the wireless sensor further comprises:
and the main clock crystal is used for providing system frequency for the running of a preset program and timing the MCU controller.
Further, the steps from S2 to S3 further include:
s21: judging whether the preset request time is reached or not through a preset program, if so, requesting the upper computer to issue the environmental temperature and time information of the preset Lora wireless gateway through the Lora module, transmitting the environmental temperature and time information to the MCU controller, and entering the step S22; if not, the step S3 is executed;
s22: the timing of a main clock crystal in the MCU controller is calibrated by using time information sent by the upper computer through a preset program, a difference value between the environmental temperature sent by the upper computer and the shaft temperature in the environmental data collected by the wireless sensor is obtained through the preset program, whether the difference value is larger than a preset threshold value or not is judged, and if yes, alarm information is sent.
Further, in the step S1, it is determined whether the power-on duration is less than a preset duration, and if so, the Lora module requests the upper computer to issue parameter configuration data to the preset Lora wireless gateway, and transmits the parameter configuration data to the MCU controller to perform parameter configuration, and starts to collect environment data after the configuration is completed.
Further, in the step S1, it is determined whether the environmental data is greater than or less than a corresponding alarm threshold, and if so, an alarm message is sent out through a preset program, and the step S2 is performed.
Further, the preset power supply module further includes:
and the energy storage module is connected with the power management chip and used for storing the electric energy in the vibration energy collector so as to be used as the input of the rear-end digital voltage and the rear-end analog voltage in the wireless sensor.
Further, the control panel is connected with the Lora module through a connector; the preset power supply module provides electric energy for the wireless sensor through the patch cord.
Further, the preset power supply module further includes:
the power protection module is arranged between the power management chip and the power chip, and electric energy in the power management chip is input into the power chip after passing through the power protection module.
Compared with the prior art, the invention at least has the following beneficial effects:
(1) Because the wireless sensor has higher requirements on the installation position, the preset power supply module is independent from the interior of the wireless sensor, the design mode reduces the protection grade design requirements of the sensor, reduces the volume of the wireless sensor, enables the wireless sensor to be installed at a position with better working conditions, enhances the working stability of the sensor, and greatly improves the convenience of subsequent maintenance;
(2) The preset power supply module also comprises an energy storage module, and when the vibration energy collector cannot independently provide all power required by the wireless sensor, the energy storage module can output electric energy so as to provide enough output power;
(3) In addition, when the vibration energy collector is adopted to generate vibration in the installation environment, the vibration energy is converted into electric energy, so that the self-powered wireless sensor avoids the problem of power supply by using a battery in the prior art;
(4) In the invention, the main clock crystal is used as a clock source, so that the measurement accuracy of the wireless sensor is ensured, and the power consumption of the sensor is reduced;
(5) The invention adopts the Lora module to realize the communication between the wireless sensor and the upper computer, and avoids the problems of high packet loss rate and high power consumption during long-distance communication.
Drawings
Fig. 1 is a flow chart of a wireless data collection method with low power consumption.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
In order to realize the self-powered wireless sensor and reduce the energy consumption in the process of acquiring the environmental data, as shown in fig. 1, the invention provides a low-power wireless data acquisition method, which acquires the environmental data by a wireless sensor connected with a preset power supply module by using the low-power acquisition method;
the preset power supply module comprises:
the vibration energy collector is used for converting vibration energy into electric energy when vibration is generated in the installation environment;
the power management chip is connected with the vibration energy collector and used for receiving the electric energy in the vibration energy collector and inputting the electric energy into the power chip in the wireless sensor; it should be noted that the output of the power management chip is a standard 5V voltage.
The preset power supply module further comprises:
and the energy storage module is connected with the power management chip and used for storing the electric energy in the vibration energy collector and inputting the electric energy into the power management chip, and the power management chip inputs the electric energy into the power chip in the wireless sensor to be used as the input of the rear-end digital voltage and the rear-end analog voltage in the wireless sensor.
The preset power supply module further comprises:
the power protection module is arranged between the power management chip and the power chip, and electric energy in the power management chip is input into the power chip after passing through the power protection module.
The preset power supply module provides electric energy for the wireless sensor through the patch cord.
In this embodiment, the wireless sensor has a power-on interface and a power-off interface, the interfaces are electrical interfaces, the connection of the vibration energy collector represents the power-on, and the disconnection represents the power-off.
The preset power supply module also comprises an energy storage module, and when the vibration energy collector cannot independently provide all power required by the wireless sensor, the energy storage module can output electric energy so as to provide enough output power. In addition, the preset power supply module provides electric energy for the wireless sensor through the patch cord, the problem of long-distance wired power supply in the prior art is solved, and meanwhile, when the vibration energy collector is adopted to generate vibration in the installation environment, the vibration energy is converted into the electric energy, so that the self-power supply is realized, and the problem of battery power supply in the prior art is solved.
The wireless sensor includes:
the power supply chip is used for converting electric energy (5V voltage) into digital voltage (3.3V digital voltage) with a preset amplitude and used as input of rear-end digital voltage in the wireless sensor (part of the digital voltage is used as input of the rear-end digital voltage in the wireless sensor), and the input end of the rear-end digital voltage comprises a digital power supply pin of the MCU controller;
the analog voltage conversion circuit is connected with the power supply chip and used for converting part of digital voltage in the power supply chip into analog voltage (3.3V analog voltage) and then inputting the analog voltage as the rear end analog voltage in the wireless sensor, wherein the input end of the rear end analog voltage comprises an analog power supply pin of the MCU controller;
the control panel comprises an MCU controller and an RTC clock crystal; the MCU controller is burnt with a compiled preset program and runs in the MCU controller; the RTC clock crystal is used for setting the periodic operation time of the wireless sensor and awakening the wireless sensor when the operation time is up;
the Lora module is connected with the control panel;
the control panel is connected with the Lora module through a connector;
the low-power consumption acquisition method comprises the following steps:
s1: acquiring the power-on time of the wireless sensor through a preset program, judging whether the power-on time is less than the preset time (5 minutes), if not, acquiring environmental data, analyzing the environmental data, judging whether the environmental data is greater than or less than a corresponding alarm threshold value, and if not, entering the next step;
in the step S1, whether the power-on duration is less than the preset duration is judged, if yes, the Lora module requests the upper computer to issue parameter configuration data to the preset Lora wireless gateway, and transmits the parameter configuration data to the MCU to perform parameter configuration, and starts to collect environment data after the configuration is completed.
In this embodiment, the parameter configuration data includes parameters such as an ID of the wireless sensor node, an alarm limit value, and time.
In the step S1, whether the environmental data is larger than or smaller than the corresponding alarm threshold value is judged, if yes, alarm information is sent out through a preset program, and the step S2 is carried out.
It should be noted that, in the preset program of this embodiment, when the environmental data is greater than or less than the corresponding alarm threshold (or the environmental data is not within the corresponding standard range), the method specifically includes: and sending alarm information through a preset program, and entering the step S2, skipping the judgment of data reporting time at the moment, and directly reporting the alarm event information.
S2, judging whether the set data reporting time is reached or not through a preset program, if so, sending the environmental data to a preset Lora wireless gateway through a Lora module, sending the environmental data to an upper computer through the preset Lora wireless gateway, and entering the next step; if not, directly entering the next step;
it should be explained that the data sent to the preset Lora wireless gateway through the Lora module further includes alarm event information, which includes: the alarm event information stored in the wireless sensor is more than or equal to 500, the record can be covered circularly after the record is full, and the latest 500 records are reserved. The recorded data can be read by a preset Lora wireless gateway and an upper computer so as to facilitate troubleshooting.
The steps from S2 to S3 further comprise:
s21: judging whether the preset request time is reached or not through a preset program, if so, requesting the upper computer to issue the environmental temperature and time information of the preset Lora wireless gateway through the Lora module, transmitting the environmental temperature and time information to the MCU controller, and entering the step S22; if not, the step S3 is carried out;
s22: the timing of a main clock crystal in the MCU controller is calibrated by using time information sent by the upper computer through a preset program, a difference value between the environmental temperature sent by the upper computer and the shaft temperature in the environmental data collected by the wireless sensor is obtained through the preset program, whether the difference value is larger than a preset threshold value or not is judged, and if yes, alarm information is sent.
S3: judging whether the power-on time is less than the preset time (5 minutes) through a preset program, if so, returning to the step S1, and if not, controlling the MCU controller to enter a dormant state through the preset program and closing an acquisition circuit in the wireless sensor;
in this embodiment, the wireless sensor is provided with an IO-controlled electronic switch for turning off the power supply of the acquisition circuit to reduce power consumption in a sleep state. In the embodiment, the low-power-consumption MCU controllers with the preset number of DACs and ADCs are selected to reduce the power consumption overhead of additional devices, and the switching power supply is selected as a power supply chip to reduce the static power consumption.
S4: and judging whether the operation time of the wireless sensor is reached or not through a preset program, if so, awakening the dormant wireless sensor through an RTC clock crystal, and returning to the step S1.
According to the invention, when the operating time of the wireless sensor is reached, the wireless sensor in the sleep state is awakened by the RTC clock crystal to acquire, analyze and report data, so that a large amount of acquisition energy consumption is saved.
The low power consumption acquisition method further comprises:
the method comprises the steps of establishing a protocol layer, namely, appointing a format and content of data transmission between a preset program and an upper computer, and setting an analysis method, wherein the analysis method is used for analyzing data content reported by the wireless sensor to the upper computer and data content issued to the wireless sensor by the upper computer, and the data content comprises temperature and time information issued to a preset Lora wireless gateway by the upper computer in real time and parameter configuration data of the wireless sensor.
It should be noted that, in this embodiment, it is also agreed at the protocol layer that the wireless sensor can receive a signal sent by the preset Lora wireless gateway within the first 5 minutes after the wireless sensor is powered on and within 5 minutes after the wireless sensor requests the upper computer to issue the environmental temperature and time information of the preset Lora wireless gateway.
The wireless sensor further comprises:
and the main clock crystal is used for providing system frequency for the running of a preset program and timing the MCU controller.
The wireless sensor has higher requirement on the installation position, and the preset power supply module is independent from the interior of the wireless sensor, so that the design mode reduces the protection grade design requirement of the sensor, reduces the volume of the wireless sensor, ensures that the wireless sensor can be installed at a position with better working condition, enhances the working stability of the sensor, and greatly improves the convenience of subsequent maintenance.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims (7)

1. A low-power consumption wireless data acquisition method is characterized in that environmental data are acquired by a low-power consumption acquisition method through a wireless sensor connected with a preset power supply module;
the preset power supply module comprises:
the vibration energy collector is used for converting vibration energy into electric energy when vibration is generated in the installation environment;
the power supply management chip is connected with the vibration energy collector and is used for receiving the electric energy in the vibration energy collector and inputting the electric energy into the power supply chip in the wireless sensor;
the wireless sensor includes:
the power supply chip is used for converting electric energy into digital voltage with a preset amplitude and inputting the digital voltage as the rear-end digital voltage in the wireless sensor, and the input end of the rear-end digital voltage comprises a digital power supply pin of the MCU controller;
the analog voltage conversion circuit is connected with the power supply chip and used for converting digital voltage in the power supply chip into analog voltage and then inputting the analog voltage as the rear end analog voltage in the wireless sensor, and the input end of the rear end analog voltage comprises an analog power supply pin of the MCU controller;
the control panel comprises an MCU controller and an RTC clock crystal; the MCU controller is burnt with a compiled preset program and runs in the MCU controller; the RTC clock crystal is used for setting the periodic operation time of the wireless sensor and awakening the wireless sensor when the operation time is up;
the Lora module is connected with the control panel;
the low-power consumption acquisition method comprises the following steps:
s1: acquiring the power-on time length of the wireless sensor through a preset program, judging whether the power-on time length is less than the preset time length, if not, acquiring environmental data, analyzing the environmental data, judging whether the environmental data is greater than or less than a corresponding alarm threshold value, and if not, entering the next step;
s2: judging whether the set data reporting time is reached or not through a preset program, if so, sending the environmental data to a preset Lora wireless gateway through a Lora module, sending the environmental data to an upper computer through the preset Lora wireless gateway, and entering the next step; if not, directly entering the next step;
the steps from S2 to S3 further include:
s21: judging whether the preset request time is reached or not through a preset program, if so, requesting the upper computer to issue the environmental temperature and time information of the preset Lora wireless gateway through the Lora module, transmitting the environmental temperature and time information to the MCU controller, and entering the step S22; if not, the step S3 is executed;
s22: the timing of a main clock crystal in the MCU controller is calibrated by using time information sent by the upper computer through a preset program, the difference between the environment temperature sent by the upper computer and the shaft temperature in the environment data collected by the wireless sensor is obtained through the preset program, whether the difference is larger than a preset threshold value or not is judged, and if yes, alarm information is sent;
s3: judging whether the power-on time is less than the preset time through a preset program, if so, returning to the step S1, otherwise, controlling the MCU controller to enter a sleep state through the preset program and closing an acquisition circuit in the wireless sensor;
s4: judging whether the operation time of the wireless sensor is reached or not through a preset program, if so, awakening the wireless sensor in the sleep state through an RTC clock crystal, and returning to the step S1;
the low power consumption acquisition method further comprises:
the method comprises the steps of establishing a protocol layer, namely, appointing a format and content of data transmission between a preset program and an upper computer, and setting an analysis method, wherein the analysis method is used for analyzing data content reported by the wireless sensor to the upper computer and data content issued to the wireless sensor by the upper computer, and the data content comprises temperature and time information issued to a preset Lora wireless gateway by the upper computer in real time and parameter configuration data of the wireless sensor.
2. The wireless data collection method with low power consumption of claim 1, wherein the wireless sensor further comprises:
and the main clock crystal is used for providing system frequency for the operation of a preset program and timing the MCU controller.
3. A low power consumption wireless data collection method according to claim 2,
in the step S1, whether the power-on duration is less than the preset duration is judged, if yes, the Lora module requests the upper computer to issue parameter configuration data to the preset Lora wireless gateway, and transmits the parameter configuration data to the MCU to perform parameter configuration, and starts to collect environment data after the configuration is completed.
4. The wireless data collection method with low power consumption according to claim 3, wherein in the step S1, it is determined whether the environmental data is greater than or less than a corresponding alarm threshold, if so, an alarm message is sent out through a preset program, and the process proceeds to the step S2.
5. The wireless data collection method with low power consumption according to claim 1, wherein the preset power supply module further comprises:
and the energy storage module is connected with the power management chip and used for storing the electric energy in the vibration energy collector so as to be used as the input of the rear end digital voltage and the rear end analog voltage in the wireless sensor.
6. The wireless data acquisition method with low power consumption as claimed in claim 1, wherein the control board is connected with the Lora module through a connector; the preset power supply module provides electric energy for the wireless sensor through the patch cord.
7. The wireless data collection method with low power consumption of claim 5, wherein the preset power supply module further comprises:
the power protection module is arranged between the power management chip and the power chip, and electric energy in the power management chip is input into the power chip after passing through the power protection module.
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