CN217276400U - Water level monitoring terminal - Google Patents
Water level monitoring terminal Download PDFInfo
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- CN217276400U CN217276400U CN202123453987.7U CN202123453987U CN217276400U CN 217276400 U CN217276400 U CN 217276400U CN 202123453987 U CN202123453987 U CN 202123453987U CN 217276400 U CN217276400 U CN 217276400U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
Abstract
The utility model provides a water level monitoring terminal, this water level monitoring terminal includes: the main control module and the power supply of the water level monitoring terminal are respectively connected with the water immersion switch, the low-power wireless communication module and the water level monitoring module; the water logging switch sends a water logging signal to the main control module after monitoring water logging, the main control module receives the water logging signal, triggers the water level monitoring module to work, and sends water level information acquired by the water level monitoring module through the low-power wireless communication module; the two ends of the water level measuring capacitor are connected with the water level measuring chip, the main control chip is in communication connection with the water level measuring chip, the water level measuring capacitor is different in water immersion height, and corresponding capacitance values are different. The utility model discloses a real-time supervision to the water level to through the mode of opening water level monitoring when ponding appears, reduced power consumption, reduced the monitoring cost, be difficult to appear the wrong report, leak and report, the accuracy is good, has protected personal, property safety effectively.
Description
Technical Field
The utility model relates to a water level monitoring equipment field especially relates to a water level monitoring terminal.
Background
In recent years, China is affected by extreme weather, rainstorm occurs frequently in all regions, urban waterlogging is increasingly serious, and roads are flooded and tunnels are flooded when rainstorm occurs in many cities. Under the condition that the urban drainage system cannot rapidly solve the problem of waterlogging, timely monitoring of a possibly low-lying place or a region which is easy to flood is very important, traffic can be dredged in time for the region which is flooded by monitoring results, owners can be informed in time, and the disaster is avoided from happening again.
At present, areas or positions which are easy to be flooded are monitored in a manner of rainstorm early warning and manual inspection based on weather forecast. However, in an actual environment, due to the low accuracy of weather forecast, the problem of false alarm or missed alarm often occurs in the manner of performing rainstorm warning through weather forecast, and the monitoring effect is poor. However, the manual inspection mode has high cost, can only perform inspection in a fixed time period or a short time, cannot perform real-time monitoring, cannot find water level changes in time, and is difficult to effectively reduce personal safety and property loss caused by flooding.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a water level monitoring terminal, set up the water logging switch, water level monitoring module, low-power consumption wireless communication module, detect ponding through the water logging switch, and after detecting ponding, through water level monitoring module monitoring water level, and the water level information that will acquire sends away through low-power consumption wireless communication module, the real-time supervision to the water level has been realized, and through the mode of opening water level monitoring when ponding appearing, electric energy consumption has been reduced, the monitoring cost is reduced, be difficult to appear the wrong report, the missing reports, the accuracy is good, the person has been protected effectively, property safety.
In order to solve the above problem, the utility model discloses a technical scheme do: a water level monitoring terminal, comprising: the water level monitoring terminal includes: the water level monitoring system comprises a main control module, a water immersion switch, a low-power wireless communication module, a power supply and a water level monitoring module, wherein the main control module and the power supply are respectively connected with the water immersion switch, the low-power wireless communication module and the water level monitoring module; after monitoring accumulated water, the water logging switch sends an accumulated water signal to the main control module, the main control module receives the accumulated water signal, triggers the water level monitoring module to work, and sends water level information acquired by the water level monitoring module through the low-power wireless communication module; the water level monitoring module comprises a water level measuring capacitor and a water level metering chip, the main control module comprises a main control chip, two ends of the water level measuring capacitor are connected with the water level metering chip, the main control chip is in communication connection with the water level metering chip, the water level measuring capacitor is different in water immersion height, and corresponding capacitance values are different.
Furthermore, the water level monitoring terminal also comprises an input circuit, and the input circuit is respectively connected with the water immersion switch and the main control module.
Further, the input circuit includes a first field effect transistor, a first resistor, a first capacitor, a second resistor, a third resistor, a second capacitor, a second field effect transistor, a fourth resistor, and a third capacitor, wherein a gate of the first field effect transistor is connected to an output terminal of the water immersion switch, a second terminal of the first resistor, and a first terminal of the first capacitor, a drain is connected to the main control chip and the first terminal of the first resistor, a source is connected to the first terminal of the second resistor and the first terminal of the third resistor, a second terminal of the first capacitor is connected to the second terminal of the second resistor, the second terminal of the second capacitor, and a source of the second field effect transistor, and is grounded, a second terminal of the third resistor is connected to the first terminal of the second capacitor and the gate of the second field effect transistor, and a drain of the second field effect transistor is connected to the second terminal of the fourth resistor, The first end of the fourth resistor is connected with the main control chip, one end of the third capacitor is grounded, and the other end of the third capacitor is connected with the main control chip.
Further, the power supply comprises a battery module and a power supply circuit, the power supply circuit comprises a water level monitoring module power supply circuit and a low-power wireless communication module power supply circuit, the water level monitoring module power supply circuit is respectively connected with the water level monitoring module, the battery module and a main control chip, the low-power wireless communication module power supply circuit is connected with the battery module, the low-power wireless communication module and the main control chip, and the main control chip controls the power supply to supply power to the water level monitoring module and the low-power wireless communication module.
Furthermore, the water level monitoring module power supply circuit comprises a fifth resistor, a first triode, a third field effect transistor and a sixth resistor, one end of the fifth resistor is connected with the main control chip, the other end of the fifth resistor is connected with the base electrode of the first triode, the emitting electrode of the first triode is grounded, the collecting electrode of the fifth resistor is connected with the grid electrode of the third field effect transistor and the first end of the sixth resistor, the second end of the sixth resistor is connected with the battery module and the drain electrode of the third field effect transistor, and the source electrode of the third field effect transistor is connected with the water level metering chip to supply power to the water level metering chip.
Further, the water level monitoring terminal further comprises a wired communication module, the wired communication module is connected with the main control chip, the power supply circuit further comprises a wired communication module power supply circuit, the wired communication module power supply circuit is respectively connected with the main control chip, the wired communication module and the battery module, and the wired communication module power supply circuit supplies power to the wired communication module.
Further, the water level monitoring module further comprises a power output module, the power supply circuit further comprises an output power circuit, and the output power circuit is respectively connected with the power output module, the battery module and the main control chip.
Further, the power supply circuit of the low power consumption wireless communication module comprises a seventh resistor, an eighth resistor, a second triode, a ninth resistor, a fourth field effect transistor, a tenth resistor, a fourth capacitor and a fifth capacitor, wherein a first end of the seventh resistor is connected with the main control chip, a second end of the seventh resistor is connected with a first end of the eighth resistor and a first end of the second triode, a second end of the eighth resistor is grounded, an emitter of the second triode is grounded, a collector of the second triode is connected with a gate of the fourth field effect transistor and a first end of the ninth resistor, a second end of the ninth resistor is connected with the battery module, a first end of the tenth resistor and a drain of the fourth field effect transistor, a source of the fourth field effect transistor is connected with a second end of the tenth resistor and a first end of the fourth capacitor, and a second end of the fourth capacitor is grounded, and the first end of the fifth capacitor is connected with the first end of the fourth capacitor and the main control chip, and the second end of the fifth capacitor is grounded.
Further, the water level monitoring terminal further comprises a low-voltage detection module, the power supply circuit comprises a low-voltage detection module power supply circuit, the low-voltage detection module is connected with the battery module, and the low-voltage detection module power supply circuit is respectively connected with the main control chip, the low-voltage monitoring module and the battery module.
Furthermore, the water level monitoring terminal further comprises a wake-up circuit, a power-on circuit and a reset circuit, wherein the wake-up circuit, the power-on circuit and the reset circuit are respectively connected with the main control chip and the low-power wireless communication module.
Compared with the prior art, the beneficial effects of the utility model reside in that: set up the water logging switch, water level monitoring module, low-power consumption wireless communication module, detect ponding through the water logging switch, and after detecting ponding, monitor the water level through water level monitoring module, and send away the water level information that acquires through low-power consumption wireless communication module, the real-time supervision to the water level has been realized, and through the mode of opening water level monitoring when ponding appears, the power consumption has been reduced, the monitoring cost is reduced, be difficult to appear the wrong report, the missing report, the accuracy is good, the person has been protected effectively, property safety.
Drawings
FIG. 1 is a diagram of a structure of an embodiment of a water level monitoring terminal of the present invention;
FIG. 2 is a structural diagram of another embodiment of the water level monitoring terminal of the present invention;
FIG. 3 is a circuit diagram of an embodiment of a water level monitoring module in the water level monitoring terminal of the present invention;
FIG. 4 is a circuit diagram of an embodiment of an input circuit in the water level monitoring terminal of the present invention;
fig. 5 is a circuit diagram of an embodiment of a power supply circuit of a water level monitoring module in the water level monitoring terminal of the present invention;
fig. 6 is a circuit diagram of an embodiment of the power supply circuit of the low power consumption wireless communication module in the water level monitoring terminal of the present invention;
FIG. 7 is a circuit diagram of an embodiment of a power supply circuit of a wired communication module in the water level monitoring terminal of the present invention;
FIG. 8 is a circuit diagram of an embodiment of an output power circuit in the water level monitoring terminal of the present invention;
fig. 9 is a circuit diagram of an embodiment of the wake-up circuit in the water level monitoring terminal of the present invention;
fig. 10 is a circuit diagram of an embodiment of a switch circuit in the water level monitoring terminal of the present invention;
fig. 11 is a circuit diagram of an embodiment of a reset circuit in the water level monitoring terminal of the present invention;
FIG. 12 is a circuit diagram of an embodiment of a power supply circuit of the low voltage detection module in the water level monitoring terminal of the present invention;
fig. 13 is a circuit diagram of an embodiment of a level shift circuit in the water level monitoring terminal of the present invention;
fig. 14 is a circuit diagram of an embodiment of the main control chip in the water level monitoring terminal of the present invention.
In the figure: u2, a main control chip; c1, a water level measuring capacitor; Q1B, a first field effect transistor; r87, first resistor; r45, second resistance; c4, a first capacitor; r29, third resistor; c5, a second capacitor; Q1A, a second field effect transistor; r47, fourth resistor; c1, third capacitance; d1, a first diode; d4, a second diode; r38, eleventh resistor; r18, fifth resistance; q20, the first triode; q12, a third field effect transistor; r1, sixth resistor; r97, twelfth resistor; r78, seventh resistor; r79, eighth resistor; q17, the second triode; r77, ninth resistor; q16, fourth field effect transistor; r75, tenth resistor; c52, a fourth capacitance; c53, a fifth capacitor; c54, a sixth capacitor; c55, a seventh capacitance; c56, an eighth capacitor; c57, ninth capacitance; r15, thirteenth resistor; r16, fourteenth resistance; Q3A, a fifth field effect transistor; r9, fifteenth resistor; Q3B, a sixth field effect transistor; r10, sixteenth resistor; r17, seventeenth resistor; c11, tenth capacitance; u6, a voltage conversion chip; r98, eighteenth resistor; r99, nineteenth resistance; r100, twentieth resistance; r101, twenty-first resistance.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the various embodiments of the present disclosure, described and illustrated in the figures herein generally, may be combined with each other without conflict, and that the structural members or functional modules therein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the disclosure, provided in the accompanying drawings, is not intended to limit the scope of the disclosure, as claimed, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1 to 14, fig. 1 is a structural diagram of an embodiment of a water level monitoring terminal according to the present invention; fig. 2 is a structural diagram of another embodiment of the water level monitoring terminal of the present invention; FIG. 3 is a circuit diagram of an embodiment of a water level monitoring module in the water level monitoring terminal of the present invention; FIG. 4 is a circuit diagram of an embodiment of an input circuit in the water level monitoring terminal of the present invention; FIG. 5 is a circuit diagram of an embodiment of a power supply circuit of a water level monitoring module in the water level monitoring terminal of the present invention; fig. 6 is a circuit diagram of an embodiment of the power supply circuit of the low power consumption wireless communication module in the water level monitoring terminal of the present invention; FIG. 7 is a circuit diagram of an embodiment of a power supply circuit of a wired communication module in the water level monitoring terminal of the present invention; fig. 8 is a circuit diagram of an embodiment of an output power circuit in the water level monitoring terminal according to the present invention; fig. 9 is a circuit diagram of an embodiment of the wake-up circuit in the water level monitoring terminal of the present invention; fig. 10 is a circuit diagram of an embodiment of a switch circuit in the water level monitoring terminal of the present invention; fig. 11 is a circuit diagram of an embodiment of a reset circuit in the water level monitoring terminal of the present invention; FIG. 12 is a circuit diagram of an embodiment of a power supply circuit of the low voltage detection module in the water level monitoring terminal of the present invention; fig. 13 is a circuit diagram of an embodiment of a level shift circuit in the water level monitoring terminal of the present invention; fig. 14 is a circuit diagram of an embodiment of the main control chip in the water level monitoring terminal of the present invention. The water level monitoring terminal of the present invention will be described in detail with reference to fig. 1 to 14.
In this embodiment, the water level monitoring terminal includes: the water level monitoring system comprises a main control module, a water immersion switch, a low-power-consumption wireless communication module, a power supply and a water level monitoring module, wherein the main control module and the power supply are respectively connected with the water immersion switch, the low-power-consumption wireless communication module and the water level monitoring module; the water logging switch sends a water logging signal to the main control module after monitoring water logging, the main control module receives the water logging signal, triggers the water level monitoring module to work, and sends water level information acquired by the water level monitoring module through the low-power wireless communication module; the water level monitoring module comprises a water level measuring capacitor C1 and a water level metering chip, the main control module comprises a main control chip U2, two ends of the water level measuring capacitor C1 are connected with the water level metering chip, and the main control chip U2 is in communication connection with the water level metering chip, wherein the water level measuring capacitor C1 is different in water immersion height and different in corresponding capacitance value. Specifically, an SCL pin and an SDA pin of the main control chip U2 are connected with an SCL pin and an SDA pin of the water level metering chip in a one-to-one correspondence manner. And two resistors are further arranged in the water level monitoring module, one ends of the two resistors are connected with a working voltage pin VDD of the water level metering chip, and the other ends of the two resistors are respectively connected with an SCL pin and an SDA pin of the main control chip U2.
In this embodiment, the main control chip U2 is a single chip microcomputer of the type HC32L170JATA, and in other embodiments, the main control chip U2 may also be an STM32 or other types of single chip microcomputers, or an SOC, a DSP or other devices capable of processing the received water level information and sending the information to the low power consumption wireless communication module.
In this embodiment, the low power wireless communication module is an NB-IOT communication module, and in other embodiments, the low power wireless communication module may also be a ZigBee communication module, an LTE communication module, a CAT communication module, a bluetooth communication module, a lora communication module, or other communication modules capable of operating with low power consumption.
In this embodiment, the water level measuring capacitor C1 is composed of two metal mold electrodes, and when the two electrodes are soaked by the accumulated water, the soaking height is different, and the generated capacitance is different, so as to calculate the water level height. The metering chip is a special chip with the model of MDC04, and the metering chip calculates the capacitance value according to the difference of the water level height between two electrodes of the water level measuring capacitor C1.
The water logging switch is an externally mounted water logging sensor, which can be a carbon mold switch, a stainless steel switch, a photoelectric water level switch and the like, is in a high-impedance state in a normal state, and is in a low-impedance state after being touched by water, and the main control chip U2 enters a working state from a low-power consumption state after detecting the resistance change of the water logging switch and processes related work.
In a specific embodiment, when the water level monitoring module is in a normal state, the main control chip U2 controls the power supply to be in a turned-off state, and after the water immersion switch is triggered, the main control chip U2 controls the power supply to be in a working state), the water level monitoring module detects the value of the water level measurement capacitor C1, (the capacitance value of the water level measurement capacitor C is calculated by the water level measurement chip according to the water immersion height on two electrodes of the water level measurement capacitor C1), and the main control chip U2 calculates the water level depth information according to the capacitance value (the main control chip U2 communicates with the water level measurement chip through an I2C line, and calculates the water level depth according to different capacitors), and sends related data to the background through the NB-IOT communication module.
The water level monitoring terminal further comprises an input circuit, and the input circuit is connected with the water immersion switch, the main control module and the power supply respectively. The number of the input circuits may be multiple, and one of the input circuits is connected to the main control chip U2.
In other embodiments, multiple stages of water immersion switches may be provided, each water immersion switch is connected to one input circuit, and the reliability of water level monitoring is improved by the cooperation of the multiple stages of water immersion switches and the water level monitoring module.
In this embodiment, the input circuit includes a first fet Q1B, a first resistor R87, a first capacitor C4, a second resistor R45, a third resistor R29, a second capacitor C5, a second fet Q1A, a fourth resistor R47, and a third capacitor C1, wherein a gate of the first fet Q1B is connected to an output terminal of the sink switch, a second terminal of the first resistor R87, and a first terminal of the first capacitor C4, a drain is connected to the main control chip U2 and a first terminal of the first resistor R87, a source is connected to a first terminal of the second resistor R45 and a first terminal of the third resistor R29, a second terminal of the first capacitor C4 is connected to a second terminal of the second resistor R45, a second terminal of the second capacitor C5, and a source of the second fet Q1A, and a drain is connected to ground, a second terminal of the third resistor R29 is connected to a second terminal of the second capacitor C5, a second terminal of the second capacitor C5, a second terminal of the second capacitor Q7 is connected to a gate of the fourth fet Q A, and a drain of the fourth fet Q47, The main control chip U2 is connected, and the first end of fourth resistance R47 is connected with main control chip U2, and the one end ground connection of third electric capacity C1, the other end is connected with main control chip U2.
In the present embodiment, the first field effect transistor Q1B and the second field effect transistor Q1A are packaged together, that is, the packaged field effect transistor AO7600 is used instead of implementing the functions of the first field effect transistor Q1B and the second field effect transistor Q1A.
In another embodiment, two independent field effect transistors may be provided as the first field effect transistor Q1B and the second field effect transistor Q1A in the circuit, respectively.
In one embodiment, the input circuit further includes a first diode D1, a second diode D4, and an eleventh resistor R38, wherein a cathode of the first diode D1 is connected to a first terminal of the second diode D4 and an output terminal of the water dip switch, a second terminal of the second diode D4 is grounded, an anode of the first diode D1 is connected to a first terminal of the eleventh resistor R38, and a second terminal of the eleventh resistor R38 is connected to a gate of the first field effect transistor Q1B.
When the external input is IN a normal state, the IN1 is at a high level, the first field effect transistor Q1B and the second field effect transistor Q1A are turned off, the IN1_ PB14 is at a high level, the main control chip U2 is IN a normal state (when the external IN1 is at a high level, the main control chip U2 is IN a low power consumption state, the main control chip U2 enters a working state from low power consumption and processes related signals thereof when the external input IN1 is at a low level), when the external input is at a low level, the IN1 input level is pulled down, the first field effect transistor Q1B and the second field effect transistor Q1A are turned on, the IN1_ PB14 is at a low level, and the main control chip U2 sends alarm information to the background through the low power consumption wireless communication module. In the circuit, a second diode D4 is used for electrostatic protection, a first diode D1 is used for reverse voltage input protection, and a first capacitor C4, a second capacitor C5 and a third capacitor C1 eliminate jitter and ensure the reliability of the input circuit.
The power supply comprises a battery module and a power supply circuit, the power supply circuit comprises a water level monitoring module power supply circuit and a low-power consumption wireless communication module power supply circuit, the water level monitoring module power supply circuit is respectively connected with the water level monitoring module, the battery module and a main control chip U2, the low-power consumption wireless communication module power supply circuit is connected with the battery module, the low-power consumption wireless communication module and a main control chip U2, and the main control chip U2 controls the power supply to supply power to the water level monitoring module and the low-power consumption wireless communication module.
The water level monitoring module power supply circuit comprises a fifth resistor R18, a first triode Q20, a third field effect transistor Q12 and a sixth resistor R1, one end of the fifth resistor R18 is connected with the main control chip U2, the other end of the fifth resistor R18 is connected with the base electrode of the first triode Q20, the emitter electrode of the first triode Q20 is grounded, the collector electrode of the first triode Q20 is connected with the grid electrode of the third field effect transistor Q12 and the first end of the sixth resistor R1, the second end of the sixth resistor R1 is connected with the battery module and the drain electrode of the third field effect transistor Q12, and the source electrode of the third field effect transistor Q12 is connected with the water level metering chip to supply power to the water level metering chip.
In one embodiment, the power supply circuit of the water level monitoring module further comprises a twelfth resistor R97, wherein one end of the twelfth resistor R97 is grounded, and the other end is connected to the base of the first transistor Q20.
When the water level monitoring module is in a low power consumption state, a signal 485EN output by the main control chip U2 is in a low level, the first triode Q20 and the third field effect transistor Q12 are cut off, and the water level monitoring module is free of electricity and does not work; in a working state, a signal 485EN output by the main control chip U2 is in a high level, the first triode Q20 and the third field effect transistor Q12 are cut off and switched on, the water level monitoring module works normally, and the fifth resistor R18, the sixth resistor R1 and the twelfth resistor R97 are bias resistors.
The water level monitoring terminal further comprises a wired communication module, the wired communication module is connected with the main control chip U2, the power supply circuit further comprises a wired communication module power supply circuit, the wired communication module power supply circuit is respectively connected with the main control chip U2, the wired communication module and the battery module, and power is supplied to the wired communication module through the wired communication module power supply circuit.
The water level monitoring module further comprises a power output module, the power supply circuit further comprises an output power circuit, and the output power circuit is respectively connected with the power output module, the battery module and the main control chip U2.
In this embodiment, the wired communication module power supply circuit and the water level monitoring module power supply circuit have the same circuit structure and the same working principle.
The output power circuit comprises a circuit structure which is the same as that of the water level monitoring module power supply circuit and also comprises a connector, one end of the connector is connected with the battery module, and the other end of the connector is connected with an output port of the output power circuit.
The power supply circuit of the low-power-consumption wireless communication module comprises a seventh resistor R78, an eighth resistor R79, a second triode Q17, a ninth resistor R77, a fourth field-effect transistor Q16, a tenth resistor R75, a fourth capacitor C52 and a fifth capacitor C53, wherein a first end of the seventh resistor R78 is connected with the main control chip U2, a second end of the seventh resistor R79 is connected with a first end of the eighth resistor R79 and a first end of the second triode Q17, a second end of the eighth resistor R79 is grounded, an emitter of the second triode Q17 is grounded, a collector of the eighth resistor R79 is connected with a gate of the fourth field-effect transistor Q16 and a first end of the ninth resistor R77, a second end of the ninth resistor R9 is connected with the battery module, a first end of the tenth resistor R75 and a drain of the fourth field-effect transistor Q16, a source of the fourth field-effect transistor Q16 is connected with a second end of the tenth resistor R75 and a first end of the fourth capacitor C6 52, a second end of the fourth capacitor C52 is connected with a second end of the fourth capacitor C52 and a second end of the fourth capacitor C87458, The main control chip U2 is connected, and the second end is grounded.
In one embodiment, the power supply circuit of the low power consumption wireless communication module further includes a sixth capacitor C54, a seventh capacitor C55, an eighth capacitor C56, and a ninth capacitor C57, wherein one end of each of the sixth capacitor C54, the seventh capacitor C55, the eighth capacitor C56, and the ninth capacitor C57 is grounded, and the other end is connected to the main control chip U2.
When the low-power-consumption state is entered after all the uploaded background data are processed, a signal VBAT _ EN output by the main control chip U2 is in a low level, the second triode Q17 and the fourth field effect transistor Q16 are cut off, the VDD _ NB power supply is free of electricity, and the low-power-consumption wireless communication module does not work; when the power supply circuit is in a working state, a signal VBAT _ EN output by the main control chip U2 is in a high level, the second triode Q17 and the fourth field effect transistor are conducted, the low-power wireless communication module normally works, the seventh resistor R78, the eighth resistor R79 and the ninth resistor R77 are bias resistors, the tenth resistor R75 is a reserved resistor and used when the level of a VDD _ NB power supply is not required to be controlled, the fourth capacitor C52 is a reserved super capacitor, the fifth capacitor C53, the sixth capacitor C54, the seventh capacitor C55, the eighth capacitor C56 and the ninth capacitor C57 are used for improving the stability of the power supply circuit of the low-power wireless communication module.
The water level monitoring terminal further comprises a low-voltage detection module, the power supply circuit comprises a low-voltage detection module power supply circuit, the low-voltage detection module is connected with the battery module, and the low-voltage detection module power supply circuit is respectively connected with the main control chip U2, the low-voltage monitoring module and the battery module.
In this embodiment, the low voltage detection module power supply circuit includes a thirteenth resistor R15, a fourteenth resistor R16, a fifth field effect transistor Q3A, a fifteenth resistor R9, a sixth field effect transistor Q3B, a sixteenth resistor R10, a seventeenth resistor R17 and a tenth capacitor C11, one end of the thirteenth resistor R15 is connected to the main control chip U2, the other end of the thirteenth resistor R636 is connected to the first end of the fourteenth resistor R16 and the gate of the fifth field effect transistor Q3A, the second end of the fourteenth resistor R16 and the source of the fifth field effect transistor Q3A are grounded, one end of the fifteenth resistor R9 is connected to the drain of the fifth field effect transistor Q3A and the gate of the sixth field effect transistor Q3B, the other end of the fifteenth resistor R9 is connected to the battery module and the drain of the sixth field effect transistor Q3B, the source of the sixth field effect transistor Q3B is connected to the first end of the sixteenth resistor R585, and the second end of the sixteenth resistor R10 is connected to the seventeenth end of the seventeenth resistor R17, The first end of the tenth capacitor C11 is connected to the low voltage detection module, and the seventeenth resistor R17 and the second end of the tenth capacitor C11 are grounded.
In the present embodiment, the fifth field effect transistor Q3A and the sixth field effect transistor Q3B are packaged together, that is, the packaged fet AO7600 is used instead of implementing the functions of the fifth field effect transistor Q3A and the sixth field effect transistor Q3B.
In another embodiment, two independent field effect transistors may be provided as the fifth field effect transistor Q3A and the sixth field effect transistor Q3B in the circuit, respectively.
When the battery voltage is not required to be detected for low power consumption, a signal ADC _ EN output by the main control chip U2 is at a low level, the fifth field effect transistor Q3A and the sixth field effect transistor Q3B are cut off, and no current passes through the ADC; when the battery voltage is detected according to the setting (the frequency of detection every day, detection every three days, detection once every week and the like can be set), a signal ADC _ EN output by the main control chip U2 is in a high level, the fifth field effect transistor Q3A and the sixth field effect transistor Q3B are switched on, the ADC has current to pass through, the main control chip U2 calculates the battery voltage and sends related data to a background, the thirteenth resistor R15, the fourteenth resistor R16 and the fifteenth resistor R9 are bias resistors, the sixteenth resistor R10 and the seventeenth resistor R17 are divider resistors, and the tenth resistor R75 can improve the reliability of the battery voltage and current during jitter.
In this embodiment, the low power consumption wireless communication module and the main control chip U2 have different operating voltages, so as to ensure effective transmission of signals and normal operation of the low power consumption wireless communication module. The water level monitoring terminal further comprises a level conversion circuit, the level conversion circuit is respectively connected with the main control chip U2 and the low-power wireless communication module, and the main control chip U2 transmits signals to the low-power wireless communication module through the level conversion circuit.
In one embodiment, the level shift circuit includes a voltage shift chip U6, an eighteenth resistor R98, a nineteenth resistor R99, a twentieth resistor R100, and a twenty-first resistor R101, wherein one end of the eighteenth resistor R98 is connected to the first data output pin of the main control chip U2 and the B2 pin of the voltage shift chip U6, the other end is connected to the voltage pin of the main control chip U2, one end of the nineteenth resistor R99 is connected to the second data output pin of the main control chip U2 and the B1 pin of the voltage shift chip U6, the other end is connected to the voltage pin of the main control chip U2, one end of the twentieth resistor R100 is connected to the a1 pin of the voltage shift chip U6 and the low power consumption wireless communication module, the other end is connected to the VDD-EXT pin of the main control chip U2, one end of the twenty-first resistor R101 is connected to the a2 pin of the voltage shift chip U6 and the low power consumption wireless communication module, and the other end is connected with a VDD-EXT pin of the main control chip U2.
The main control chip U2 works at battery voltage, the low-power consumption wireless communication module is an NB-IOT communication module, the serial port level of the low-power consumption wireless communication module is 2.8V, the level on the left side of the circuit is HC32 voltage, the stable 2.8V level is output by the NB-IOT module on the right side, and the eighteenth resistor R98, the nineteenth resistor R99, the twentieth resistor R100 and the twenty-first resistor R101 are pull-up resistors.
Has the advantages that: the utility model discloses water level monitor terminal is according to logic control system's input/output demand, logic relation selection logic device, generate logic device and draw, the description file that generates through this logic device drawing obtains the C language file that logic control system corresponds, and then realize logic control system's compilation, the problem that directly utilizes the procedure to realize logic relation has been avoided to the mode that generates logic control system through the logic device that makes up different logic functions, the program development degree of difficulty has been reduced, the development efficiency has been improved, and be difficult to produce the mistake, the program stability has been improved, the debugging is simple, the degree of difficulty of maintaining the logic code has been reduced, the maintenance effect and the maintenance effect have been improved.
Based on the same utility model discloses think, the utility model discloses still provide an intelligent terminal, please refer to and draw together figure 10, figure 10 does the utility model discloses the structure picture of an intelligent terminal embodiment combines figure 10 right the utility model discloses an intelligent terminal explains.
In this embodiment, the intelligent terminal includes a processor and a memory, the processor is connected to the memory in a communication manner, and the memory stores a computer program, and the computer program is used for executing the water level monitoring terminal according to the above embodiment.
In some embodiments, memory may include, but is not limited to, high speed random access memory, non-volatile memory. Such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices. The Processor may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
Based on the same concept of the present invention, the present invention further provides a computer readable storage medium, please refer to fig. 11, fig. 11 is the structure diagram of an embodiment of the computer readable storage medium of the present invention, which is combined with 11 pairs for the description of the computer readable storage medium of the present invention.
In the present embodiment, the computer-readable storage medium stores program data used to execute the water level monitoring terminal as described in the above embodiments.
The computer-readable storage medium may include, but is not limited to, floppy diskettes, optical disks, CD-ROMs (compact disc-read only memories), magneto-optical disks, ROMs (read only memories), RAMs (random access memories), EPROMs (erasable programmable read only memories), EEPROMs (electrically erasable programmable read only memories), magnetic or optical cards, flash memory, or other type of media/machine-readable medium suitable for storing machine-executable instructions. The computer readable storage medium may be an article of manufacture that is not accessible to the computer device or may be a component that is used by an accessed computer device.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a water level monitor terminal which characterized in that, water level monitor terminal includes: the water level monitoring system comprises a main control module, a water immersion switch, a low-power wireless communication module, a power supply and a water level monitoring module, wherein the main control module and the power supply are respectively connected with the water immersion switch, the low-power wireless communication module and the water level monitoring module;
after monitoring accumulated water, the water logging switch sends an accumulated water signal to the main control module, the main control module receives the accumulated water signal, triggers the water level monitoring module to work, and sends water level information acquired by the water level monitoring module through the low-power wireless communication module;
the water level monitoring module comprises a water level measuring capacitor and a water level metering chip, the main control module comprises a main control chip, two ends of the water level measuring capacitor are connected with the water level metering chip, the main control chip is in communication connection with the water level metering chip, the water level measuring capacitor is different in water immersion height, and corresponding capacitance values are different.
2. The water level monitoring terminal according to claim 1, further comprising an input circuit, wherein the input circuit is connected to the water immersion switch and the main control module respectively.
3. The water level monitor terminal as claimed in claim 2, wherein the input circuit comprises a first field effect transistor, a first resistor, a first capacitor, a second resistor, a third resistor, a second capacitor, a second field effect transistor, a fourth resistor and a third capacitor, wherein the gate of the first field effect transistor is connected to the output terminal of the water immersion switch, the second terminal of the first resistor and the first terminal of the first capacitor, the drain is connected to the main control chip and the first terminal of the first resistor, the source is connected to the first terminal of the second resistor and the first terminal of the third resistor, the second terminal of the first capacitor is connected to the second terminal of the second resistor, the second terminal of the second capacitor and the source of the second field effect transistor, and is grounded, the second terminal of the third resistor is connected to the first terminal of the second capacitor and the gate of the second field effect transistor, the drain electrode of the second field effect transistor is connected with the second end of the fourth resistor and the main control chip, the first end of the fourth resistor is connected with the main control chip, one end of the third capacitor is grounded, and the other end of the third capacitor is connected with the main control chip.
4. The water level monitoring terminal according to claim 1, wherein the power source comprises a battery module and a power supply circuit, the power supply circuit comprises a water level monitoring module power supply circuit and a low power consumption wireless communication module power supply circuit, the water level monitoring module power supply circuit is respectively connected with the water level monitoring module, the battery module and a main control chip, the low power consumption wireless communication module power supply circuit is connected with the battery module, the low power consumption wireless communication module and the main control chip, and the main control chip controls the power source to supply power to the water level monitoring module and the low power consumption wireless communication module.
5. The water level monitoring terminal according to claim 4, wherein the water level monitoring module power supply circuit comprises a fifth resistor, a first triode, a third field effect transistor and a sixth resistor, one end of the fifth resistor is connected with the main control chip, the other end of the fifth resistor is connected with the base of the first triode, the emitter of the first triode is grounded, the collector of the first triode is connected with the gate of the third field effect transistor and the first end of the sixth resistor, the second end of the sixth resistor is connected with the battery module and the drain of the third field effect transistor, and the source of the third field effect transistor is connected with the water level metering chip to supply power to the water level metering chip.
6. The water level monitoring terminal according to claim 4, further comprising a wired communication module connected to the main control chip, wherein the power supply circuit further comprises a wired communication module power supply circuit connected to the main control chip, the wired communication module and the battery module, respectively, for supplying power to the wired communication module through the wired communication module power supply circuit.
7. The water level monitoring terminal according to claim 4, wherein the water level monitoring module further comprises a power output module, the power supply circuit further comprises an output power circuit, and the output power circuit is respectively connected with the power output module, the battery module and the main control chip.
8. The water level monitoring terminal as claimed in claim 4, wherein the low power consumption wireless communication module power supply circuit comprises a seventh resistor, an eighth resistor, a second triode, a ninth resistor, a fourth field effect transistor, a tenth resistor, a fourth capacitor, and a fifth capacitor, a first end of the seventh resistor is connected to the main control chip, a second end of the seventh resistor is connected to a first end of the eighth resistor and a first end of the second triode, a second end of the eighth resistor is grounded, an emitter of the second triode is grounded, a collector is connected to a gate of the fourth field effect transistor and a first end of the ninth resistor, a second end of the ninth resistor is connected to the battery module, a first end of the tenth resistor, and a drain of the fourth field effect transistor, a source of the fourth field effect transistor is connected to a second end of the tenth resistor and a first end of the fourth capacitor, the second end of the fourth capacitor is grounded, the first end of the fifth capacitor is connected with the first end of the fourth capacitor and the main control chip, and the second end of the fifth capacitor is grounded.
9. The water level monitoring terminal according to claim 4, further comprising a low voltage detection module, wherein the power supply circuit comprises a low voltage detection module power supply circuit, the low voltage detection module is connected to the battery module, and the low voltage detection module power supply circuit is respectively connected to the main control chip, the low voltage monitoring module and the battery module.
10. The water level monitoring terminal according to claim 1, further comprising a wake-up circuit, a power-on circuit, and a reset circuit, wherein the wake-up circuit, the power-on circuit, and the reset circuit are respectively connected to the main control chip and the low power consumption wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123453987.7U CN217276400U (en) | 2021-12-31 | 2021-12-31 | Water level monitoring terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123453987.7U CN217276400U (en) | 2021-12-31 | 2021-12-31 | Water level monitoring terminal |
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| Publication Number | Publication Date |
|---|---|
| CN217276400U true CN217276400U (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123453987.7U Active CN217276400U (en) | 2021-12-31 | 2021-12-31 | Water level monitoring terminal |
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| Country | Link |
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| CN (1) | CN217276400U (en) |
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2021
- 2021-12-31 CN CN202123453987.7U patent/CN217276400U/en active Active
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