Geological disaster safety monitoring device and device power supply control method

Abstract

The present application relates to a kind of geological disaster safety monitoring equipment and equipment power control method, the monitoring equipment includes power supply unit, control unit, trigger unit, sensor unit and communication unit;Power supply unit is power supply;Trigger unit is used to monitor the signal related to geological disaster, according to the trigger signal generated by receiving signal, and trigger unit will trigger signal transmission to control unit;Sensor unit is used to collect the data in environment;The communication unit transmits the data collected by sensor unit;The control unit is used to control the power supply of power supply unit, receives the trigger signal of trigger unit, controls the data collection of sensor unit and the communication of communication unit.This application solves the technical problem that equipment data interruption is caused by power supply system anomaly, greatly improves the fault-free working time of monitoring equipment, reduces maintenance cost.

Description

Technical Field

[0001] This invention belongs to the field of automated field safety monitoring technology, specifically relating to a geological disaster safety monitoring device and a power supply control method for the device. Background Technology

[0002] With the development of digital Internet of Things technology, the country is gradually promoting and implementing automated safety monitoring and early warning systems in fields such as smart cities, smart agriculture, smart mines, smart water conservancy, and smart geological disasters. Since the front-end monitoring equipment is generally installed in the field and the installation points are particularly scattered, it is difficult and costly to achieve wired power supply and communication. Therefore, most safety monitoring equipment currently uses solar power supply and wireless communication to work.

[0003] Safety monitoring equipment operates in harsh environments, is located at scattered and steep installation sites, and has high maintenance costs. Its failures are mainly due to data interruption caused by abnormal power supply systems. Summary of the Invention

[0004] The purpose of this invention is to provide a geological disaster safety monitoring device and a power supply control method for the device, which solves the technical problem of data interruption caused by abnormal power supply system, significantly improves the fault-free working time of the monitoring device, and reduces maintenance costs.

[0005] The technical solution of the present invention is that a geological disaster safety monitoring device includes a power supply unit, a control unit, a triggering unit, a sensor unit, and a communication unit;

[0006] The power supply unit is the power source; the triggering unit is used to monitor signals related to geological disasters, generate triggering signals based on the received signals, and transmit the triggering signals to the control unit; the sensor unit is used to collect data from the environment; the communication unit transmits the data collected by the sensor unit; the control unit is used to control the power supply of the power supply unit, receive the triggering signals from the triggering unit, control the data collection of the sensor unit, and control the communication of the communication unit.

[0007] The control unit includes a photovoltaic voltage analysis module, a illuminance analysis module, a battery temperature analysis module, a photovoltaic charging short circuit analysis module, a photovoltaic charging overcurrent analysis module, a battery cycle count analysis module, and a battery undervoltage analysis module.

[0008] The photovoltaic voltage analysis module periodically and at a certain frequency collects the voltage of the photovoltaic power source and determines whether the photovoltaic power source voltage is greater than a predetermined voltage. When it is greater than the predetermined voltage, it controls the photovoltaic power source to charge the battery.

[0009] The illuminance analysis module determines whether the ambient illuminance is greater than a predetermined illuminance based on the ambient illuminance sensed by the illuminance sensor. When it is greater than the predetermined illuminance, it controls the photovoltaic power supply to charge the battery.

[0010] The battery temperature analysis module determines whether the battery temperature is lower than a predetermined temperature based on the temperature of the power supply battery collected by the temperature sensor. When the temperature is lower than the predetermined temperature, the photovoltaic power supply is controlled to charge the power supply battery.

[0011] The photovoltaic charging short circuit analysis module is used to monitor whether the charging current of the photovoltaic power supply is short-circuited. When no short circuit is detected, it controls the continued charging of the power supply battery.

[0012] The photovoltaic charging overcurrent analysis module is used to monitor whether the charging current of the photovoltaic power supply is overcurrent. When no overcurrent is detected, it controls the continued charging of the power supply battery.

[0013] The battery cycle count analysis module is used to detect the number of battery cycles of the power supply battery. The control unit records the number of cycles and controls the power supply mode of the power supply battery based on the number of battery cycles.

[0014] The battery undervoltage analysis module is used to monitor the battery voltage of the power supply battery; when the battery voltage meets the supply voltage, the power supply battery supplies power.

[0015] The control unit also includes a trigger signal analysis module, a power supply control module, a communication signal strength analysis module, and a data acquisition and analysis module;

[0016] The trigger signal analysis module is used to determine whether a wake-up trigger signal sent by the trigger unit is received. When the trigger signal analysis module receives the wake-up trigger signal, the control unit controls the device to enter the working mode. When the wake-up trigger signal is not detected, the geological disaster safety monitoring device is controlled to enter the sleep mode.

[0017] The power supply control module controls the power supply mode of other units in the equipment based on the information from the trigger signal analysis module. The power supply control module monitors whether the current time has reached the predetermined wake-up time. When the current time reaches the wake-up time, the equipment enters the working mode; when the wake-up time has not been reached, the equipment enters the sleep mode.

[0018] The communication signal strength analysis module controls the data transmission mode of the sensor unit based on the signal strength of the communication signal transmitted by the communication unit. It determines whether the signal strength is greater than a first strength threshold. When the signal strength is greater than or equal to the first strength threshold, it controls the sensor unit to perform the first data transmission. When the signal strength is less than the first strength threshold but greater than or equal to a second strength threshold, it controls the sensor unit to perform the second data transmission. When the signal strength is less than the second strength threshold, it controls the sensor unit to stop data transmission and store the data in the control unit.

[0019] The data acquisition and analysis module is used to receive the data acquired by the sensor unit and analyze and process the data.

[0020] The power supply unit includes a photovoltaic power source, a power supply battery, a light intensity sensor, a charging control switch, a power supply control switch, and a temperature sensor;

[0021] The photovoltaic power source is used to charge the power supply battery; the power supply battery is connected to the control unit, and the power supply battery consists of two batteries, namely the first battery and the second battery, which are connected in parallel.

[0022] The illuminance sensor is used to sense the ambient illuminance and transmit the sensed ambient illuminance data to the control unit;

[0023] The temperature sensor is used to sense the battery temperature of the power supply battery and transmit the sensed battery temperature data to the control unit. The temperature sensor is set on the surface of the battery.

[0024] The charging control switch is used to control the charging of the photovoltaic power source, and the power supply control switch is used to control the power supply of the battery.

[0025] The control unit controls the photovoltaic power supply to charge the battery and controls the power supply mode of the battery. That is, the control unit receives data from the power supply unit, determines whether charging is needed based on the data, determines the power supply mode, generates control commands, and sends the control commands to the charging switch and power supply switch in the power supply unit.

[0026] The sensor unit is used to collect data from the environment to assist in the judgment of geological hazards. The sensor unit includes a sensor power supply switch and a sensor connected to the sensor power supply switch. The sensor power supply switch is connected to the power supply control module and controls whether to supply power to the sensor in different power supply modes of the power supply control module.

[0027] The communication unit includes a communication power supply switch and a communication module connected to the communication power supply switch. The communication power supply switch is connected to the power supply control module and controls the power supply battery to supply power to the communication module in different power supply modes of the power supply control module. The communication module transmits the data collected by the sensor through a wireless communication mode.

[0028] The trigger unit is used to trigger the device to wake up from the sleep mode and enter the working mode. The trigger unit is connected to the trigger signal analysis module and transmits the wake-up trigger signal to the trigger signal analysis module.

[0029] A power control method for a geological disaster safety monitoring device, characterized by the following specific steps:

[0030] The first step is to determine whether the charging conditions of the power supply battery are met and control the charging of the power supply battery; that is, to detect the voltage of the photovoltaic power source, and when the power supply conditions of the power supply battery are met, the photovoltaic power source charges the power supply battery.

[0031] The charging conditions include: the photovoltaic power supply voltage is greater than the predetermined voltage, the ambient light intensity is greater than the predetermined light intensity, the temperature of the power supply battery is lower than the predetermined temperature, the photovoltaic power supply charging current is not short-circuited, the charging current is not overcurrent, and the photovoltaic power supply charging current is normal.

[0032] The second step is to determine the power supply mode; this is done based on the battery voltages of the first and second batteries and the number of battery cycles.

[0033] The power supply modes include:

[0034] When the supply voltage V1 of the first battery and the supply voltage V2 of the second battery are both greater than or equal to the first voltage threshold of 12.5V, and the battery cycle number T1 of the first battery is less than the battery cycle number T2 of the second battery, the first battery supplies power.

[0035] When the supply voltages V1 and V2 of the first battery and the second battery are both greater than or equal to the first voltage threshold, and the number of battery cycles T1 of the first battery is greater than the number of battery cycles T2 of the second battery, the second battery supplies power.

[0036] When the supply voltage of the first battery is greater than or equal to the first voltage threshold, and the supply voltage of the second battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the first battery supplies power.

[0037] When the supply voltage of the second battery is greater than or equal to the first voltage threshold, and the supply voltage of the first battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the second battery supplies power.

[0038] When the supply voltage of both the first battery and the second battery is less than the first voltage threshold and greater than or equal to the second voltage threshold, the first battery and the second battery are controlled to supply power simultaneously.

[0039] When the supply voltage of both the first and second batteries is less than the second voltage threshold and greater than or equal to the third voltage threshold, the first and second batteries supply power simultaneously, and the power supply time of the first and second batteries is adjusted, that is, the data acquisition time period and the data transmission period are modified from τ to 4τ or 6τ.

[0040] The third step is to monitor the predetermined wake-up conditions, determine whether the predetermined wake-up conditions are met, and control the device mode. When the wake-up conditions are met, the device enters the working mode; when the wake-up conditions are not met, the device enters the sleep mode.

[0041] The monitoring of predetermined wake-up conditions includes: monitoring a wake-up trigger signal; when the wake-up trigger signal is detected, the control device enters a working mode; when the wake-up trigger signal is not detected, the control device enters a sleep mode.

[0042] The fourth step is to detect the signal strength of the communication signal and determine the data transmission mode;

[0043] The system detects whether the signal strength of the communication signal is greater than a first strength threshold of -85dBm. When the signal strength is greater than or equal to the first strength threshold of -85dBm, the control device performs the first data transmission. When the signal strength is less than the first strength threshold of -85dBm but greater than or equal to a second strength threshold of -100dBm, the control device performs the second data transmission. When the signal strength is less than the second strength threshold of -100dBm, the control device stops data transmission, stores the data, and enters sleep mode.

[0044] The beneficial effects of this invention are that it reduces the average power consumption of geological disaster safety monitoring equipment, improves the reliability of geological disaster safety monitoring equipment, extends the fault-free working time of the equipment, reduces equipment maintenance costs, increases the operating profit margin of the project undertaking enterprise, and at the same time ensures the integrity of monitoring data, providing stable and reliable data support for safety monitoring, early warning and analysis. Attached Figure Description

[0045] Figure 1 This is a block diagram illustrating the composition of a geological disaster safety monitoring device according to the present invention;

[0046] Figure 2 This is a block diagram showing the composition of each unit in this invention;

[0047] Figure 3 This is a schematic diagram of the charging management process in the power control method for a geological disaster safety monitoring device according to the present invention.

[0048] Figure 4 This is a schematic diagram of the power supply management process in the power supply control method for a geological disaster safety monitoring device according to the present invention;

[0049] Figure 5 This is a schematic diagram of the power supply mode control of the sensor unit and the communication unit in the power supply control method of the geological disaster safety monitoring equipment of the present invention;

[0050] Figure 6 This is a schematic diagram of the power supply control method for the communication unit in the power supply control method of a geological disaster safety monitoring equipment according to the present invention. Detailed Implementation

[0051] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.

[0052] While some embodiments of this disclosure are shown in the accompanying drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0053] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0054] like Figure 1 As shown, the geological disaster safety monitoring device of the present invention can be installed in locations or areas where geological disasters may occur, for monitoring whether a geological disaster has occurred or is about to occur. The geological disaster safety monitoring device includes a power supply unit, a control unit, a triggering unit, a sensor unit, and a communication unit.

[0055] The power supply unit provides power to the geological disaster safety monitoring equipment. The triggering unit detects signals related to geological disasters, generates a trigger signal based on the received signal, and transmits the trigger signal to the control unit. The sensor unit collects data from the environment, including crack width, surface subsidence, rock mass angle, ambient temperature, and groundwater level. The communication unit transmits the data collected by the sensor unit to, but is not limited to, a remote data analysis and management server. The control unit controls the power supply of the power supply unit, receives trigger signals from the triggering unit, controls data acquisition by the sensor unit, and manages communication within the communication unit.

[0056] like Figure 1 and Figure 2 As shown, the power supply unit includes a photovoltaic power source, a power supply battery, a light intensity sensor, and a temperature sensor.

[0057] Photovoltaic power sources are used to charge batteries and can utilize solar panels.

[0058] The power supply battery is connected to the control unit and serves as the energy storage medium for the geological disaster safety monitoring equipment. The power supply battery can be a rechargeable battery, including but not limited to lithium batteries, fuel cells, and storage batteries. Alternatively, a battery pack structure can be used to provide a more stable power supply to the geological disaster safety monitoring equipment. Two batteries can be used, namely a first battery and a second battery, connected in parallel, which can power the geological disaster safety monitoring equipment individually or together.

[0059] The illuminance sensor is used to sense the ambient light level and transmit the sensed data to the control unit.

[0060] Temperature sensors are used to sense the temperature of the power supply battery and transmit the sensed data to the control unit. Temperature sensors are disposed on the battery surface. When the power supply battery is a battery pack structure, multiple temperature sensors may be included, and each sensor is disposed on the surface of each battery to monitor the temperature of the power supply battery, depending on the number of batteries in the battery pack.

[0061] The power supply unit may further include a charging control switch and a power supply control switch for controlling the charging of the photovoltaic power source and the power supply of the battery.

[0062] like Figure 2 As shown, the control unit controls the charging of the battery by the photovoltaic power source and controls the power supply mode of the battery. Specifically, the control unit receives data from the power supply unit, determines whether charging is needed based on the data, determines the power supply mode, generates control commands, and sends these commands to the charging switch and power supply switch in the power supply unit. The control unit includes a photovoltaic voltage analysis module, a illuminance analysis module, a battery temperature analysis module, a photovoltaic charging short-circuit analysis module, a photovoltaic charging overcurrent analysis module, a battery cycle count analysis module, and a battery undervoltage analysis module.

[0063] The photovoltaic voltage analysis module periodically and at a certain frequency collects the voltage of the photovoltaic power source and determines whether the photovoltaic power source voltage is greater than a predetermined voltage. When it is greater than the predetermined voltage, it can be used as one of the charging conditions to control the photovoltaic power source to charge the battery. The predetermined voltage is a pre-stored voltage, and its value is 40% greater than the rated voltage of the battery.

[0064] The illuminance analysis module determines whether the ambient illuminance, sensed by the illuminance sensor, exceeds a predetermined illuminance. When the illuminance exceeds the predetermined illuminance, it serves as one of the charging conditions, controlling the photovoltaic power supply to charge the battery. The predetermined illuminance is 10000 lux.

[0065] The battery temperature analysis module determines whether the battery temperature is below a predetermined temperature based on the temperature data collected by the temperature sensor. If the temperature is below the predetermined temperature, it can be used as one of the charging conditions to control the photovoltaic power supply to charge the battery. The predetermined temperature is set to an ambient temperature above 60°C.

[0066] The photovoltaic charging short-circuit analysis module is used to monitor whether the charging current of the photovoltaic power source is short-circuited, thereby controlling whether to continue charging the power supply battery. When no short circuit is detected, the module can control the continued charging of the power supply battery.

[0067] The photovoltaic charging overcurrent analysis module monitors whether the photovoltaic power supply's charging current is excessive to control whether to continue charging the battery. When no overcurrent is detected, charging of the battery can continue. Overcurrent is defined as a charging current exceeding 20% ​​of the photovoltaic power supply's peak current.

[0068] The battery cycle count analysis module is used to detect the number of battery cycles of the power supply battery. The control unit records the number of cycles and controls the power supply mode of the power supply battery based on the number of battery cycles. The higher the number of battery cycles, the shorter the battery life and the lower the performance; conversely, the shorter the number of battery cycles, the longer the battery life and the better the performance.

[0069] The battery undervoltage analysis module monitors the battery voltage and controls the battery's power supply mode based on the battery voltage value. When the battery voltage meets the supply voltage, the battery supplies power.

[0070] The control unit determines the power supply mode based on both the battery voltage and the number of battery cycles.

[0071] The power supply mode is as follows:

[0072] When the supply voltage V1 of the first battery and the supply voltage V2 of the second battery are both greater than or equal to the first voltage threshold of 12.5V, and the number of battery cycles T1 of the first battery is less than the number of battery cycles T2 of the second battery, the first battery supplies power; the first voltage threshold is a preset voltage value, and its value range is 0.5V to 1V higher than the rated voltage of the battery.

[0073] When the supply voltages V1 and V2 of the first battery and the second battery are both greater than or equal to the first voltage threshold, and the number of battery cycles T1 of the first battery is greater than the number of battery cycles T2 of the second battery, the second battery supplies power.

[0074] When the supply voltage of the first battery is greater than or equal to the first voltage threshold, and the supply voltage of the second battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the first battery is controlled to supply power; the second voltage threshold is a preset voltage value, and the value range is 1V to 0.5V lower than the rated voltage of the battery.

[0075] When the supply voltage of the second battery is greater than or equal to the first voltage threshold, and the supply voltage of the first battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the supply voltage of the second battery is controlled to supply power.

[0076] When the supply voltage of both the first battery and the second battery is less than the first voltage threshold and greater than or equal to the second voltage threshold, the first battery and the second battery are controlled to supply power simultaneously.

[0077] When the supply voltage of both the first and second batteries is less than the second voltage threshold but greater than or equal to the third voltage threshold, the first and second batteries are controlled to supply power simultaneously, and the power supply time of the first and second batteries is adjusted. The third voltage threshold is a preset voltage value, ranging from 2.5V to 3V lower than the battery's rated voltage. The data acquisition time period and data transmission period are modified from τ to 4τ or 6τ, where τ is the time period.

[0078] The first voltage threshold is greater than the second voltage threshold, and the second voltage threshold is greater than the third voltage threshold. Specifically, adjusting the power supply time of the first and second batteries includes controlling and extending the data acquisition time period of the sensor unit and the data transmission time period of the communication unit. For example, the data acquisition time period and the data transmission time period can be modified from τ to 4τ or 6τ, where τ is the time period.

[0079] The control unit further includes a trigger signal analysis module, which determines whether a wake-up trigger signal sent by the trigger unit has been received. To reduce power consumption and further extend power life, the geological disaster safety monitoring equipment is typically in a sleep state. When the trigger signal analysis module in the control unit receives a wake-up trigger signal sent by the trigger unit, the control unit controls other parts of the geological disaster safety monitoring equipment to enter the working mode. When no wake-up trigger signal is detected, the control unit controls the geological disaster safety monitoring equipment to enter a sleep mode.

[0080] The control unit further includes a power supply control module. Based on information from the trigger signal analysis module, the power supply control module controls the power supply mode of other units in the safety monitoring equipment, such as the operating mode or sleep mode. The power supply control module can monitor whether the current time has reached a predetermined wake-up time, which is preset and usually rounded to the nearest whole number. When the current time reaches the wake-up time, the geological disaster safety monitoring equipment enters the operating mode; when the wake-up time has not been reached, the geological disaster safety monitoring equipment enters the sleep mode.

[0081] The control unit further includes a communication signal strength analysis module. This module controls the data transmission mode of the sensor unit based on the signal strength of the communication signal transmitted by the communication unit. The module detects the signal strength G of the communication signal transmitted by the communication unit and determines whether the signal strength is greater than a first strength threshold. When the signal strength is greater than or equal to the first strength threshold, the sensor unit transmits the collected data for the first time. When the signal strength is less than the first strength threshold but greater than or equal to a second strength threshold, the sensor unit transmits the collected data a second time through the communication unit; this second data transmission is a re-execution of the data transmission process after the first transmission failed. When the signal strength is less than the second strength threshold, the sensor unit stops transmitting the collected data and stores it in the control unit. Data transmission is stopped by controlling the power supply to the communication unit via the power supply control unit. After data transmission or data storage, the power supply control unit can control the geological disaster safety monitoring equipment to enter a sleep mode. Both the first and second strength thresholds are preset. The first strength threshold is above 90% of the maximum wireless propagation signal strength; the second strength threshold is between 70% and 90% of the maximum wireless propagation signal strength.

[0082] The control unit further includes a data acquisition and analysis module for receiving data acquired by the sensor unit and analyzing and processing the data.

[0083] The sensor unit is used to collect environmental data to assist in the assessment of geological hazards. The sensor unit includes a sensor power supply switch and one or more sensors connected to the power supply switch. The sensor power supply switch is connected to a power supply control module and controls whether to supply power to the sensors under different power supply modes of the power supply control module to achieve energy saving. The sensors are one or more of the following: strain sensors, displacement sensors, pressure sensors, tilt sensors, settlement sensors, water level sensors, and environmental factor sensors.

[0084] The communication unit includes a communication power supply switch and a communication module connected thereto. The communication power supply switch is connected to a power supply control module and controls the power supply battery to power the communication module under different power supply modes of the power supply control module. The communication module is a wireless communication module, which can transmit the data collected by the sensor to a remote data analysis server or the public network via wireless communication.

[0085] The triggering unit is used to trigger whether the geological disaster safety monitoring equipment or control unit wakes up from sleep mode and enters working mode. The triggering unit is connected to the trigger signal analysis module and transmits a wake-up trigger signal to the trigger signal analysis module. The triggering unit adopts a passive triggering sensor, including, but not limited to, encoders, piezoresistive sensors, photosensitive sensors, thermal sensors, reed switches, etc.

[0086] The geological disaster safety monitoring device of the present invention, through the charging management of the power supply battery in the power supply unit, the power supply management of the power supply battery, and the power supply strategy for the communication unit and the sensor unit, can effectively maximize the power utilization efficiency of the monitoring device, improve the power supply stability and fault-free working time of the monitoring device.

[0087] like Figures 3 to 6 As shown, the specific steps of the power supply control method for a geological disaster safety monitoring device according to the present invention are as follows:

[0088] First step, such as Figure 3 and Figure 4 As shown, the system determines whether the charging conditions for the power supply battery in the geological disaster safety monitoring equipment are met, determines the power supply mode, and charges the power supply battery. Specifically, it detects the voltage of the photovoltaic power source; when the power supply conditions are met, the photovoltaic power source charges the power supply battery.

[0089] The charging conditions include: the photovoltaic power supply voltage is greater than the predetermined voltage; the ambient light intensity is greater than the predetermined light intensity; and the battery temperature is lower than the predetermined temperature. The predetermined temperature is set to be above 30 degrees Celsius of ambient temperature, and currently a constant value is adopted.

[0090] Furthermore, it can also detect whether the photovoltaic power supply charging current is short-circuited and whether the charging current is overcurrent. When the photovoltaic power supply charging current is detected to be normal, the photovoltaic power supply continues to charge the power supply battery.

[0091] Further detection of the battery voltage and battery cycle count of the first and second batteries is performed, and the power supply mode is determined based on the battery voltage and battery cycle count of the first and second batteries.

[0092] The power supply modes include: when the power supply voltage V1 of the first battery and the power supply voltage V2 of the second battery are both greater than or equal to a first voltage threshold, and the battery cycle number T1 of the first battery is less than the battery cycle number T2 of the second battery, the first battery supplies power; when the power supply voltage V1 of the first battery and the power supply voltage V2 of the second battery are both greater than or equal to the first voltage threshold, and the battery cycle number T1 of the first battery is greater than the battery cycle number T2 of the second battery, the second battery supplies power; when the power supply voltage V1 of the first battery is greater than or equal to the first voltage threshold, and the power supply voltage V2 of the second battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the first battery supplies power; when the power supply voltage V2 of the second battery is greater than or equal to the first voltage threshold, and the power supply voltage V1 of the first battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the second battery supplies power; when the power supply voltage V1 of the first battery and the power supply voltage V2 of the second battery are both less than the first voltage threshold but greater than or equal to the second voltage threshold, the first battery and the second battery supply power simultaneously; when the power supply voltage V1 of the first battery and the power supply voltage V2 of the second battery are both less than the second voltage threshold but greater than or equal to a third voltage threshold, the first battery and the second battery supply simultaneously, and the power supply time of the first battery and the second battery is adjusted.

[0093] The second step, as Figure 5 As shown, the system monitors predetermined wake-up conditions, determines whether these conditions are met, and controls the mode of the geological disaster safety monitoring equipment. When the wake-up conditions are met, the geological disaster safety monitoring equipment enters the working mode; when the wake-up conditions are not met, the equipment enters the sleep mode.

[0094] The pre-defined wake-up conditions include: monitoring a wake-up trigger signal; when the wake-up trigger signal is detected, controlling the geological disaster safety monitoring equipment to enter the working mode; and when the wake-up trigger signal is not detected, controlling the geological disaster safety monitoring equipment to enter the sleep mode.

[0095] The monitoring of whether the predetermined wake-up conditions are met includes: monitoring whether the current time has reached the wake-up time of the predetermined cycle; when the wake-up time is reached, controlling the geological disaster safety monitoring equipment to enter the working mode; when the wake-up time is not reached, controlling the geological disaster safety monitoring equipment to enter the sleep mode.

[0096] The third step, as Figure 6 As shown, the signal strength of the communication signal is detected to determine the data transmission mode.

[0097] The system detects whether the signal strength of the communication signal is greater than a first strength threshold. When the signal strength is greater than or equal to the first strength threshold, it controls the data collected by the geological disaster safety monitoring equipment to be transmitted for the first time. When the signal strength is less than the first strength threshold but greater than or equal to a second strength threshold, it controls the data collected by the geological disaster safety monitoring equipment to be transmitted for the second time. When the signal strength is less than the second strength threshold, it controls the data collected by the geological disaster safety monitoring equipment to stop transmitting and store it in the geological disaster safety monitoring equipment.

[0098] Further, this includes controlling the geological disaster safety monitoring equipment to enter a sleep mode after data transmission or storage.

[0099] It should be noted that some details or methods of the power control method have already been described in the description of the geological disaster safety monitoring equipment, and will not be repeated here.

[0100] Various aspects of this disclosure are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by program instructions.

[0101] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A power supply control method for a geological disaster safety monitoring device, characterized in that: The monitoring equipment includes a power supply unit, a control unit, a triggering unit, a sensor unit, and a communication unit; The power supply unit is the power source; the triggering unit is used to detect signals related to geological disasters, generate a trigger signal based on the received signal, and transmit the trigger signal to the control unit; the sensor unit is used to collect data from the environment; the communication unit transmits the data collected by the sensor unit; the control unit is used to control the power supply of the power supply unit, receive the trigger signal from the triggering unit, control the data collection of the sensor unit, and control the communication of the communication unit. The specific steps of the power supply control method are as follows: The first step is to determine whether the charging conditions of the power supply battery are met and control the charging of the power supply battery; that is, to detect the voltage of the photovoltaic power source, and when the power supply conditions of the power supply battery are met, the photovoltaic power source charges the power supply battery. The charging conditions include: the photovoltaic power supply voltage is greater than the predetermined voltage, the ambient light intensity is greater than the predetermined light intensity, the temperature of the power supply battery is lower than the predetermined temperature, the photovoltaic power supply charging current is not short-circuited, the charging current is not overcurrent, and the photovoltaic power supply charging current is normal. The second step is to determine the power supply mode; this is done based on the battery voltages of the first and second batteries and the number of battery cycles. The power supply modes include: When the supply voltage V1 of the first battery and the supply voltage V2 of the second battery are both greater than or equal to the first voltage threshold of 12.5V, and the battery cycle number T1 of the first battery is less than the battery cycle number T2 of the second battery, the first battery supplies power. When the supply voltages V1 and V2 of the first battery and the second battery are both greater than or equal to the first voltage threshold, and the number of battery cycles T1 of the first battery is greater than the number of battery cycles T2 of the second battery, the second battery supplies power. When the supply voltage of the first battery is greater than or equal to the first voltage threshold, and the supply voltage of the second battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the first battery supplies power. When the supply voltage of the second battery is greater than or equal to the first voltage threshold, and the supply voltage of the first battery is less than the first voltage threshold but greater than or equal to the second voltage threshold, the second battery supplies power. When the supply voltage of both the first battery and the second battery is less than the first voltage threshold and greater than or equal to the second voltage threshold, the first battery and the second battery are controlled to supply power simultaneously. When the supply voltage of the first battery and the second battery is both less than the second voltage threshold and greater than or equal to the third voltage threshold, the first battery and the second battery supply power simultaneously, and the power supply time of the first battery and the second battery is adjusted, that is, the data acquisition time period and the data transmission period are modified from τ to 4τ or 6τ. The third step is to monitor the predetermined wake-up conditions, determine whether the predetermined wake-up conditions are met, and control the device mode. When the wake-up conditions are met, the device enters the working mode; when the wake-up conditions are not met, the device enters the sleep mode. The monitoring of predetermined wake-up conditions includes: monitoring a wake-up trigger signal; when the wake-up trigger signal is detected, the control device enters a working mode; when the wake-up trigger signal is not detected, the control device enters a sleep mode. The fourth step is to detect the signal strength of the communication signal and determine the data transmission mode; The system detects whether the signal strength of the communication signal is greater than a first strength threshold. When the signal strength is greater than or equal to the first strength threshold, the control device performs the first data transmission. When the signal strength is less than the first strength threshold but greater than or equal to a second strength threshold, the control device performs the second data transmission. When the signal strength is less than the second strength threshold, the control device stops data transmission, stores the data, and enters sleep mode.

2. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The control unit includes a photovoltaic voltage analysis module, a illuminance analysis module, a battery temperature analysis module, a photovoltaic charging short circuit analysis module, a photovoltaic charging overcurrent analysis module, a battery cycle count analysis module, and a battery undervoltage analysis module. The photovoltaic voltage analysis module collects the voltage of the photovoltaic power supply at regular intervals and at a certain frequency, and determines whether the photovoltaic power supply voltage is greater than the predetermined voltage. When it is greater than the predetermined voltage and the illuminance is greater than the preset illuminance, it controls the photovoltaic power supply to charge the battery. The illuminance analysis module determines whether the ambient illuminance is greater than a predetermined illuminance based on the ambient illuminance sensed by the illuminance sensor. When it is greater than the predetermined illuminance, it controls the photovoltaic power supply to charge the battery. The battery temperature analysis module determines whether the battery temperature is lower than a predetermined temperature based on the temperature of the power supply battery collected by the temperature sensor. When the battery temperature is lower than the predetermined temperature, the photovoltaic power supply is controlled to charge the battery. The photovoltaic charging short circuit analysis module is used to monitor whether the charging current of the photovoltaic power supply is short-circuited. When no short circuit is detected, it controls the continued charging of the power supply battery. The photovoltaic charging overcurrent analysis module is used to monitor whether the charging current of the photovoltaic power supply is overcurrent. When no overcurrent is detected, it controls the continued charging of the power supply battery. The battery cycle count analysis module is used to detect the number of battery cycles of the power supply battery. The control unit records the number of cycles and controls the power supply mode of the power supply battery based on the number of battery cycles. The battery undervoltage analysis module is used to monitor the battery voltage of the power supply battery; when the battery voltage meets the supply voltage, the power supply battery supplies power.

3. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The control unit also includes a trigger signal analysis module, a power supply control module, a communication signal strength analysis module, and a data acquisition and analysis module; The trigger signal analysis module is used to determine whether a wake-up trigger signal sent by the trigger unit is received. When the trigger signal analysis module receives the wake-up trigger signal, the control unit controls the device to enter the working mode. When the wake-up trigger signal is not detected, the geological disaster safety monitoring device is controlled to enter the sleep mode. The power supply control module controls the power supply mode of other units in the equipment based on the information from the trigger signal analysis module. The power supply control module monitors whether the current time has reached the predetermined wake-up time. When the current time reaches the wake-up time, the equipment enters the working mode; when the wake-up time has not been reached, the equipment enters the sleep mode. The communication signal strength analysis module controls the data transmission mode of the sensor unit based on the signal strength of the communication signal transmitted by the communication unit. It determines whether the signal strength is greater than a first strength threshold. When the signal strength is greater than or equal to the first strength threshold, it controls the sensor unit to perform the first data transmission. When the signal strength is less than the first strength threshold but greater than or equal to a second strength threshold, it controls the sensor unit to perform the second data transmission. When the signal strength is less than the second strength threshold, it controls the sensor unit to stop data transmission and store the data in the control unit. The data acquisition and analysis module is used to receive the data acquired by the sensor unit and analyze and process the data.

4. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The power supply unit includes a photovoltaic power source, a power supply battery, a light intensity sensor, a charging control switch, a power supply control switch, and a temperature sensor; The photovoltaic power source is used to charge the power supply battery; the power supply battery is connected to the control unit, and the power supply battery consists of two batteries, namely the first battery and the second battery, which are connected in parallel. The illuminance sensor is used to sense the ambient illuminance and transmit the sensed ambient illuminance data to the control unit; The temperature sensor is used to sense the battery temperature of the power supply battery and transmit the sensed battery temperature data to the control unit. The temperature sensor is set on the surface of the battery. The charging control switch is used to control the charging of the photovoltaic power source, and the power supply control switch is used to control the power supply of the battery.

5. The power supply control method for a geological disaster safety monitoring device according to claim 4, characterized in that: The control unit controls the photovoltaic power supply to charge the battery and controls the power supply mode of the battery. That is, the control unit receives data from the power supply unit, determines whether charging is needed based on the data, determines the power supply mode, generates control commands, and sends the control commands to the charging switch and power supply switch in the power supply unit.

6. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The sensor unit is used to collect data from the environment to assist in the judgment of geological hazards. The sensor unit includes a sensor power supply switch and a sensor connected to the sensor power supply switch. The sensor power supply switch is connected to the power supply control module and controls whether to supply power to the sensor in different power supply modes of the power supply control module.

7. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The communication unit includes a communication power supply switch and a communication module connected to the communication power supply switch. The communication power supply switch is connected to the power supply control module and controls the power supply battery to supply power to the communication module in different power supply modes of the power supply control module. The communication module transmits the data collected by the sensor unit via wireless communication.

8. The power supply control method for a geological disaster safety monitoring device according to claim 1, characterized in that: The trigger unit is used to trigger the device to wake up from the sleep mode and enter the working mode. The trigger unit is connected to the trigger signal analysis module and transmits the wake-up trigger signal to the trigger signal analysis module.

Images