CN110209139B - Water tower group management system - Google Patents
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- CN110209139B CN110209139B CN201910604497.0A CN201910604497A CN110209139B CN 110209139 B CN110209139 B CN 110209139B CN 201910604497 A CN201910604497 A CN 201910604497A CN 110209139 B CN110209139 B CN 110209139B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4188—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by CIM planning or realisation
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to the technical field of water tower management, in particular to a water tower group management system. The water tower group management system is characterized in that: the system comprises a central management system, a fulcrum processing system, a communication system and a power supply system; the central management system comprises a central processing module and a central input/output module, wherein the central processing module is used for receiving the water tower group status signals and controlling the work of each module, and the central input/output module is connected with the central processing module; each fulcrum processing system comprises a signal acquisition module connected with a sensor on the water tower and a main control module for making a corresponding response mechanism according to the signals; the communication system is composed of a wireless transparent transmission module and comprises a signal transmitting end connected with each fulcrum processing system and a signal receiving end connected with the central management system; the invention solves the problem that the water tower group cannot be supervised in real time, avoids the trouble that water overflows in the inspection gap or water is lacking in the water tower but cannot be known and processed in time, does not need manual inspection, and saves labor cost.
Description
Technical Field
The invention relates to the technical field of water tower management, in particular to a water tower group management system.
Background
The water tower is mainly used for water storage of a residential building or in the production process of a water plant. Because of the high-rise water storage structure, the construction needs to be particularly careful and the quality is ensured, and the water level in the water tower needs to be inspected and focused frequently so as to prevent the problem of permanent water leakage or water shortage of the device caused by too high or too low water level, and more serious, if the weather is bad or the water level overflows out of the top of the tower, the water tower is easy to incline and roll over, thereby causing serious consequences.
Although the water tower is widely applied, products for managing the water tower are lacking in the market, if the water tower group is monitored manually, the water tower group is extremely high in labor cost, and serious consequences are easily caused by negligence or untimely disposal, so that the market demand cannot be met.
Disclosure of Invention
The invention aims to overcome the defects, and provides the water tower group management system, which solves the problem that the water tower group cannot be monitored in real time, avoids the trouble that water overflows in a patrol gap or water is lacking in the water tower but cannot be known and processed in time, monitors the states of the water towers in real time in a central control room through a signal acquisition module and a communication system, takes measures according to the alarm of a central input/output module when abnormal conditions occur, is convenient to use, reacts rapidly to the abnormal conditions, does not need manual patrol, and saves labor cost.
The invention is realized by the following technical scheme: the water tower group management system is characterized in that: the system comprises a central management system, more than one fulcrum processing system arranged at each water tower point, a communication system for establishing a connection between the central management system and the fulcrum processing system, and a power supply system for providing power required by each part of the system;
The central management system comprises
The central processing module is used for receiving the water tower group state signals transmitted by the fulcrum processing systems and controlling the modules to work;
The central input/output module is connected with the central processing module and is used for realizing man-machine interaction with the central management system and monitoring the states of all fulcrums in real time;
The fulcrum handling system comprises
The signal acquisition module is connected with a sensor on the water tower and is used for transmitting a sensor signal to the fulcrum main control module;
The main control module is used for receiving and processing the sensor signals transmitted by the signal acquisition module and making a corresponding coping mechanism according to the information;
The communication system is composed of a wireless transparent transmission module and comprises a signal transmitting end connected with each fulcrum processing system and a signal receiving end connected with the central management system;
And the signal acquisition module transmits the sensor signals to the main control module in each fulcrum processing system, and the main control module processes corresponding information. The state indication is processed and the corresponding processing is carried out, meanwhile, the signal is transmitted to a central management system through a communication system, the central processing module of the central management system indicates and records the state of the water tower according to the received signal, and the command from the man-machine interaction system can remotely control each pivot processing system through a wireless transparent communication module to realize corresponding remote operation.
The working principle and the process are as follows:
And the signal acquisition module transmits the sensor signals to the main control module in each branch node, and the main control module processes the corresponding information. The state indication is processed and the corresponding processing is carried out, meanwhile, the signal is transmitted to a central management system through a communication system, the main control of the central management system indicates and records the state of the water tower according to the received signal, and the command from the man-machine interaction system can remotely control the branch node through a wireless transparent communication module to realize corresponding remote operation.
For better implementation of the present embodiment, the following optimization scheme is also provided:
Further, in order to optimize the central processing module and the main control module: the central processing module and the main control module are respectively a main control chip ATmega2560-16AU, and also comprise a programming interface and a reset circuit composed of a capacitor C5, a resistor R30 and an external key S1.
Further, to optimize the signal acquisition module: the signal acquisition module comprises a signal acquisition interface used for being connected with the Sensor, and the signal acquisition interface is further provided with a power supply interface DC_24V used for supplying power to the Sensor, a signal output interface sensor_x used for being connected with the main control module and transmitting Sensor signals, and a common ground end GND used for grounding the Sensor and the system.
Further, a current output type sensor is used as a signal acquisition tool for convenience: the signal acquisition module also comprises a precision resistor for converting a current signal of the current output type sensor into a voltage signal with a peak value within 5V.
Further, in order to optimize the communication system, the use of the communication system is convenient: the communication system adopts a wireless transparent transmission module LoRa DRLM, and further comprises a voltage change circuit for converting different use voltages between the wireless transparent transmission module and the main control module and between the wireless transparent transmission module and the central processing unit, and a debugging unit for debugging and upgrading system firmware; the voltage change circuit comprises a voltage reduction circuit for converting the IO pin voltage 5V of the main control module processor into the wireless transparent transmission module voltage 3.3V and a voltage increase circuit for converting the wireless transparent transmission module voltage 3.3V into the IO voltage 5V of the central processing module processor, and the debugging unit comprises a conversion chip CH340G for realizing USB-to-TTL level conversion.
Further, to enable the central control room and the pivot point to receive the water tower status indication: the central input/output module comprises a first indicator lamp or a first alarm connected with the central processing module and a first output circuit arranged between the central processing module and the first indicator lamp or the first alarm and used for improving the output carrying capacity of the main control chip and preventing the main control chip from being damaged due to overlarge current; the first output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm;
The fulcrum processing system further comprises a fulcrum prompting module which is connected with the main control module and used for prompting the state of the water tower according to the instruction of the main control module; the fulcrum prompting module comprises a second indicator lamp or a second alarm connected with the main control module and a second output circuit arranged between the main control module and the second indicator lamp or the second alarm and used for improving the output carrying capacity of the main control chip and preventing the main control chip from being damaged due to overlarge current; the second output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm.
Further, to enable manual control of the system module at both the central control room and the fulcrum: the central management system further comprises a first external control module, a first control button, a photoelectric coupler TLP185, a current limiting resistor R18 and a pull-up resistor R19, wherein the first external control module is connected with the central processing module and used for manually inputting control signals, the photoelectric coupler TLP185 is connected between the first control button and the central processing module and used for isolating the input signals, and the current limiting resistor R18 is arranged at the input end of the photoelectric coupler;
The fulcrum processing system further comprises a second external control module, which is connected with the main control module and used for manually inputting control signals, and comprises a second control key, a photoelectric coupler TLP185, a current limiting resistor R18 and a pull-up resistor R19, wherein the photoelectric coupler TLP185 is connected between the second control key and the main control module and used for conducting isolation processing on the input signals, the current limiting resistor R18 is arranged at the input end of the photoelectric coupler, and the pull-up resistor R19 is arranged at the output end of the photoelectric coupler.
Further, in order to enable the water tower condition to be observed at both the central control room and the fulcrum: the central management system also comprises a central display module, wherein the central display module is connected with the central processing module and is used for displaying the specific state of each water tower, and the central display module comprises a display HJ_240128 used for displaying more data information and an adjustable resistor R16 used for adjusting the contrast ratio of the display;
The fulcrum processing system also comprises a fulcrum display module which is connected with the main control module and used for displaying the specific state of a certain water tower, and comprises a small display HJ_LCD12864 or HJ_LCD12832 used for displaying less data information and an adjustable resistor R16 used for adjusting the contrast ratio of the display.
Furthermore, in order to keep a record of the state of each water tower, the comparison and the prediction are convenient: the central management system also comprises a central recording module which is connected with the central processing module and used for recording the states of the water towers in real time, and the central recording module comprises a first clock unit and a first storage unit; the first clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2; the first storage unit comprises a storage card provided with a serial peripheral interface and an interface TF1 for connecting the storage card with a system, wherein the interface TF1 comprises a pin TF_CS for enabling the storage card, a pin TF_CD for detecting whether the storage card is inserted, a pin SCK for realizing a synchronous clock, data transmission pins MISO and MOSI and a storage card grounding end GND;
The fulcrum processing system further comprises a fulcrum recording module, which is connected with the main control module and used for recording the state of a certain water tower in real time, and comprises a second clock unit and a second storage unit; the second clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2; the second memory unit comprises a memory card provided with a serial peripheral interface and an interface TF1 for connecting the memory card with a system, wherein the interface TF1 comprises a pin TF_CS for enabling the memory card, a pin TF_CD for detecting whether the memory card is inserted, a pin SCK for realizing a synchronous clock, data transmission pins MISO and MOSI and a memory card grounding end GND.
Further, in order to optimize the power supply system, the power supply meets the requirements of each module: the power supply system consists of a central power supply system and a fulcrum power supply system, and comprises a power supply conversion module for converting external power supply DC_24V_in into internal power supply DC_24V, a power supply conversion module for converting DC_24V into power consumption required voltage of each module, and a voltage-dividing and current-limiting driving module for indicating the power supply state of each module; the power supply conversion module comprises a diode D10 connected with an external power supply DC_24V_in and a fuse tube F1 connected with the diode D10; the power conversion module comprises a first conversion circuit for converting DC_24V into DC5V and DC12V respectively and a second conversion circuit for converting DC5V into DC3.3V; the first conversion circuit comprises power conversion chips LM2596S-5 and LM2596S-12, freewheeling diodes D4 and D5, energy storage filter inductors L1 and L2 and filter capacitors C8 and C23, and the second conversion circuit comprises a conversion chip LM1117S-3.3; the voltage-dividing current-limiting driving module comprises indicator lamps D6-D9 and current-limiting resistors R40-R43;
The power supply system further comprises a built-in battery for maintaining a system clock state when external power supply is abnormal, and the fulcrum power supply module trickles charges the built-in battery through the chip DS1302 when the external power supply is normal.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention provides a water tower group management system, which solves the problem that the water tower group cannot be monitored in real time, avoids the trouble that water overflows in a patrol gap or water is lack in the water tower but cannot be known and processed in time, monitors the states of all the water towers in real time in a central control room through a signal acquisition module and a communication system, takes measures according to the alarm of a central input/output module when abnormal conditions occur, is convenient to use, reacts rapidly to the abnormal conditions, does not need manual patrol, and saves labor cost;
2. The invention provides a water tower group management system, wherein a central management system and a fulcrum processing system have the functions of prompting, manual external control, displaying and recording, and a user can timely acquire and process water tower abnormality in a central control room or at a specific water tower point, so that the central control room can conveniently and timely allocate repair staff and repair work is completed at the water tower point;
3. The invention provides a water tower group management system, which is provided with a recording module for recording specific time information while recording the state of a water tower, so that a user can conveniently analyze and predict the data.
Drawings
The invention is further described below with reference to the accompanying drawings in conjunction with examples:
FIG. 1 is a structural frame diagram of a water tower group management system of the present invention;
FIG. 2 is a schematic diagram of a chip circuit of a main control module and a central processing module;
FIG. 3 is a schematic diagram of a chip circuit of the signal acquisition module;
FIG. 4 is a schematic diagram of a chip circuit of the communication system;
FIG. 5 is a schematic diagram of a chip circuit of the central input/output module and the fulcrum hint module;
FIG. 6 is a schematic diagram of a chip circuit of the external control module;
FIG. 7 is a schematic diagram of a chip circuit of the display module;
FIG. 8 is a schematic diagram of a chip circuit of the power supply system;
Detailed Description
The present invention is described in detail below with reference to the attached drawings and specific examples of the specification:
The water tower group management system is characterized in that: the system comprises a central management system, more than one fulcrum processing system arranged at each water tower point, a communication system for establishing a connection between the central management system and the fulcrum processing system, and a power supply system for providing power required by each part of the system;
The central management system comprises
The central processing module is used for receiving the water tower group state signals transmitted by the fulcrum processing systems and controlling the modules to work;
The central input/output module is connected with the central processing module and is used for realizing man-machine interaction with the central management system and monitoring the states of all fulcrums in real time;
The fulcrum handling system comprises
The signal acquisition module is connected with a sensor on the water tower and is used for transmitting a sensor signal to the fulcrum main control module;
The main control module is used for receiving and processing the sensor signals transmitted by the signal acquisition module, and making corresponding response mechanisms such as a water pump opening mechanism, a valve closing mechanism, an alarm starting mechanism and the like according to the information;
The communication system is composed of a wireless transparent transmission module and comprises a signal transmitting end connected with each fulcrum processing system and a signal receiving end connected with the central management system;
And the signal acquisition module transmits the sensor signals to the main control module in each fulcrum processing system, and the main control module processes corresponding information. The state indication is processed and the corresponding processing is carried out, meanwhile, the signal is transmitted to a central management system through a communication system, the central processing module of the central management system indicates and records the state of the water tower according to the received signal, and the command from the man-machine interaction system can remotely control each pivot processing system through a wireless transparent communication module to realize corresponding remote operation.
As shown in FIG. 2, the central processing module and the main control module are respectively a main control chip ATmega2560-16AU, and further comprise a programming interface and a reset circuit composed of a capacitor C5, a resistor R30 and an external key S1.
As shown in fig. 3, the signal acquisition module includes signal acquisition interfaces P18-P25 for connection to sensors,
The signal acquisition interface is also provided with a power supply interface DC_24V for supplying power to the Sensor, a signal output interface sensor_x for being connected with the main control module and transmitting Sensor signals, and a common ground GND for grounding the Sensor and the system.
The signal acquisition module also comprises precision resistors R47-R54 used for converting the current signal of the current output type sensor into a voltage signal within 5V.
Because the Sensor has voltage output type and current output type, the system defaults to use the voltage output type Sensor with the output range of 0-5V, if a current output type Sensor with the output range of 4-20mA is used, the common ground end GND can be disconnected, only DC_24V and sensor_x are connected, the corresponding current is converted into a voltage signal within 5V through the precise resistor of R47-R54, if the output current is 20mA, the converted voltage is 20mA, 250 Ω=5000 mV, namely 5V, and finally the voltage signal is transmitted to the analog-digital conversion port of the main control chip.
As shown in fig. 4, the communication system adopts a wireless transparent transmission module LoRa DRLM, and the communication system further comprises a voltage change circuit for converting different use voltages between the wireless transparent transmission module and the main control module and between the wireless transparent transmission module and the central processing unit, and a debugging unit for debugging and upgrading system firmware;
The voltage change circuit comprises a voltage reduction circuit for converting the IO pin voltage 5V of the main control module processor into the wireless transparent transmission module voltage 3.3V and a voltage increase circuit for converting the wireless transparent transmission module voltage 3.3V into the IO voltage 5V of the central processing module processor,
The debug unit comprises a conversion chip CH340G for realizing USB to TTL level conversion.
The wireless transparent transmission module RoLa DRLM is 3km in theoretical transmission distance and 16km in open area transmission, so that equipment group management can be completely met, however, the module adopts 3.3V power supply and the pin voltage limit is 3.3V and can not be directly communicated with the main control chip 5V, so that a voltage step-down circuit of 3.3V-5V and a voltage step-up circuit of 5V-3.3V are introduced into the system, as shown in the graph R6, R7 and Q1, when MCU_TXD2 is output to be high level, the triode Q1 is cut off to output high level under the action of the pull-up resistor R7, when MCU_TXD2 is output to be low level, the triode Q1 is conducted to output low level of LM16_RXD, and because the power supply end voltage of the pull-up resistor R7 is 3.3V, the output high level is 3.3V; for the 3.3V to 5V circuit, the 3.3V direct driving can be theoretically adopted, but there may be problems that the output voltage is insufficient and cannot reach the high level jump threshold or the rising edge of the signal is too long, so that a corresponding conversion circuit is introduced, for example, when the output of the lm16_aux is high, the potential difference of the emitting junction of the triode Q4 is 0, the triode is cut off, the output of the mcu_aux is high (5V) under the action of the pull-up resistor R13, when the output of the lm16_aux is low, the potential difference exists in the emitting junction of the triode Q4, the conducting and collecting junction voltage of the triode is approximately zero, and the output of the mcu_aux is low (0V).
The wireless transparent transmission module Rola is internally provided with an identification code, only data transmitted among modules with the same identification code can be effectively reserved, in order to avoid crosstalk among multiple sets of systems in the same area, all functions of the wireless transparent transmission module (namely, communication among AUX, MS1, MS2 and a main control chip) are reserved, module parameters are automatically configured after each time of system power-on, each set of system uses a unique group of identification codes, and a good module can be directly replaced when the module is faulty or damaged.
Meanwhile, the system adopts the level conversion chip CH340G as a USB-to-serial port communication module, can be used for programming and debugging of the system, and can update the system firmware at any time only by one USB line.
As shown in fig. 5, the central input/output module includes a first indicator lamp or a first alarm connected with the central processing module, and a first output circuit arranged between the central processing module and the first indicator lamp or the first alarm for improving the output load capacity of the main control chip and preventing the main control chip from being damaged due to excessive current;
The first output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm;
The fulcrum handling system further comprises
The fulcrum prompting module is connected with the main control module and used for prompting the state of the water tower according to the instruction of the main control module;
The fulcrum prompting module comprises a second indicator lamp or a second alarm connected with the main control module and a second output circuit arranged between the main control module and the second indicator lamp or the second alarm and used for improving the output carrying capacity of the main control chip and preventing the main control chip from being damaged due to overlarge current;
The second output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm.
Because the Output load capacity of the port of the main control chip is limited, and meanwhile, the port also has the problem of voltage limitation, in order to improve the load capacity of the system and protect the chip from being burnt by external power supply abnormality, the system adopts an NPN triode 8050S (Q7) to drive a load relay K1, meanwhile, when the main control chip outputs high level, the damage of an IO pin of the chip or the serial-in current limiting resistor R34 of a driving triode base between the main control Output port and the driving triode base is avoided, the safe and reliable operation of the system is ensured, and finally, corresponding indicating equipment is connected to an Output port P11 (taking a first output_0 as an example), and when the external is high-power equipment, the P11 load coil voltage is 24V AC contactor or an intermediate relay with the coil voltage of 24V firstly and then the corresponding large AC contactor is carried.
As shown in fig. 6, the central management system further comprises
The first external control module is connected with the central processing module and is used for manually inputting control signals and comprises a first control key, a photoelectric coupler TLP185, a current-limiting resistor R18 and a pull-up resistor R19, wherein the photoelectric coupler TLP185 is connected between the first control key and the central processing module and is used for isolating the input signals;
The fulcrum handling system further comprises
The second external control module is connected with the main control module and is used for manually inputting control signals, and comprises a second control key, a photoelectric coupler TLP185, a current-limiting resistor R18 and a pull-up resistor R19, wherein the photoelectric coupler TLP185 is connected between the second control key and the main control module and is used for isolating the input signals, the current-limiting resistor R18 is arranged at the input end of the photoelectric coupler, and the pull-up resistor R19 is arranged at the output end of the photoelectric coupler.
In order to avoid the damage of the main control chip caused by the excessively high voltage on the IO pin of the main control chip due to the abnormal external power supply or the bad environment and the like, the external control module adopts a photoelectric coupler TLP185 to perform isolation processing on an input signal, the external control signal enters an optical coupler U2 through a current limiting resistor R18, when a signal is input, an output triode is conducted, an output signal in_0 is short-circuited to ground and outputs a low level, when no signal is input, an output triode is cut off, an output end is open to ground, and a high level is output under the action of a pull-up resistor R19.
As shown in fig. 7, the central management system further comprises
The central display module is connected with the central processing module and used for displaying the specific state of each water tower, and comprises a display HJ_240128 used for displaying more data information and an adjustable resistor R16 used for adjusting the contrast of the display;
The fulcrum handling system further comprises
The fulcrum display module is connected with the main control module and used for displaying the specific state of a certain water tower, and comprises a small display HJ_LCD12864 or HJ_LCD12832 used for displaying less data information and an adjustable resistor R16 used for adjusting the contrast ratio of the display.
In order to achieve a good display effect, the two problems of display backlight and display contrast adjustment are involved, the contrast adjustment is adjusted according to the requirement through an adjustable resistor R16, and the brightness is intelligently adjusted through a main control chip.
As shown in fig. 2, the central management system further comprises
The central recording module is connected with the central processing module and used for recording the states of the water towers in real time and comprises a first clock unit and a first storage unit;
The first clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2;
The first storage unit comprises a storage card provided with a serial peripheral interface and an interface TF1 for connecting the storage card with a system, wherein the interface TF1 comprises a pin TF_CS for enabling the storage card, a pin TF_CD for detecting whether the storage card is inserted, a pin SCK for realizing a synchronous clock, data transmission pins MISO and MOSI and a storage card grounding end GND;
The fulcrum handling system further comprises
The fulcrum recording module is connected with the main control module and used for recording the state of a certain water tower in real time and comprises a second clock unit and a second storage unit;
the second clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2;
The second memory unit comprises a memory card provided with a serial peripheral interface and an interface TF1 for connecting the memory card with a system, wherein the interface TF1 comprises a pin TF_CS for inserting the memory card, a pin TF_CD for detecting whether the memory card is inserted, a pin SCK for connecting a clock unit, data transmission pins MISO and MOSI and a memory card grounding end GND.
In order to facilitate understanding of the system state and searching for abnormal records of the system when recording the state of each pool, the system introduces a real-time clock module DS1302, records specific time information while recording the state of the pool, and can analyze and predict data. The system state information has huge data volume, so that an external storage medium is adopted to store corresponding data information, and the system adopts a TF card of an SPI communication interface to store data, and the TF card interface is shown as a figure TF 1.
The power supply system consists of a central power supply system and a fulcrum power supply system, and as shown in fig. 8, the power supply system comprises a power supply conversion module for converting external power supply DC_24V_in into internal power supply DC_24V, a power supply conversion module for converting DC_24V into power consumption required voltage meeting each module, and a voltage-dividing and current-limiting driving module for indicating the power supply state of each module;
the power supply conversion module comprises a diode D10 connected with an external power supply DC_24V_in and a fuse tube F1 connected with the diode D10;
The power conversion module comprises a first conversion circuit for converting DC_24V into DC5V and DC12V respectively and a second conversion circuit for converting DC5V into DC3.3V; the first conversion circuit comprises power conversion chips LM2596S-5 and LM2596S-12, freewheeling diodes D4 and D5, energy storage filter inductors L1 and L2 and filter capacitors C8 and C23, and the second conversion circuit comprises a conversion chip LM1117S-3.3;
the voltage-dividing current-limiting driving module comprises indicator lamps D6-D9 and current-limiting resistors R40-R43;
The power supply system further comprises a built-in battery for providing power when external power supply is abnormal, and when the external power supply is normal, the fulcrum power supply module trickles charge of the built-in battery through the chip DS 1302.
The power supply system adopts DC24V input, DC24V is generated by an external AC/DC power adapter, the output of the power adapter is larger than 24V1A according to the actual power consumption requirement, the external power supply DC_24V_in in the power supply conversion module generates DC_24V power supply through a recoverable fuse F1 after reverse connection prevention protection by a diode D10 (ER 3A, and the common rectifier diode can be replaced), and the module has three functions: firstly, the power supply is used as a power supply conversion circuit to supply power, secondly, the power supply is used as a sensor such as water level, water pressure and the like (normally 24V power supply is generally carried out, the power supply range is between DC12V and DC 28V), and further, the power supply is used as an audible and visual alarm system such as an indicator lamp, a buzzer and the like to supply power.
The power conversion module generates DC12V, DC V and DC3.3V from DC24V according to the power consumption requirement of the system, the 12V and 5V power supply parts are composed of power conversion chips LM2596S, in order to reduce the system failure rate, the power conversion chips adopt fixed output chips, namely LM2596S-5 and LM2596S-12, directly feed back the output power to a fourth pin (FB port) of the chip according to the principle of least external elements, a built-in drive switching tube of the LM2596 chip directly outputs a PWM power signal with a peak value of 150KHZ and can reach 3A, and meanwhile, the power conversion module has the functions of short-circuit protection, overload protection and the like, and only one freewheeling diode (shown as figures D4 and D5), one energy storage filter inductor (shown as figures L1 and L2) and corresponding filter capacitor are needed outside when the system requirement is met. The DC3.3V part is in view of low power consumption of electric equipment, DC5V exists in the system, the pressure difference between the DC3.3V part and the system is small, and the LM1117S-3.3 is directly adopted to form a linear voltage-stabilized power supply, so that the requirements of energy conservation and cost conservation can be met while the power supply requirement is met.
The voltage and current dividing and limiting driving circuit consisting of D6, D7, D8, D9, R40, R41, R42 and R43 in the voltage and current dividing and limiting driving module is used as a DC24V, DC12V, DC V and DC3.3V power supply state indicator lamp, so that the power supply state of the detection system can be simply and clearly detected.
The foregoing detailed description will be given for the purpose of illustration only, and the invention is not limited to the above-described embodiments, but is to be construed as merely illustrative of the principles of the invention, as long as they are within the scope of the invention.
Claims (7)
1. The water tower group management system is characterized in that: the system comprises a central management system, more than one fulcrum processing system arranged at each water tower point, a communication system for establishing a connection between the central management system and the fulcrum processing system, and a power supply system for providing power required by each part of the system;
The central management system comprises
The central processing module is used for receiving the water tower group state signals transmitted by the fulcrum processing systems and controlling the modules to work;
The central input/output module is connected with the central processing module and is used for realizing man-machine interaction with the central management system and monitoring the states of all fulcrums in real time;
The fulcrum handling system comprises
The signal acquisition module is connected with a sensor on the water tower and is used for transmitting a sensor signal to the fulcrum main control module;
The main control module is used for receiving and processing the sensor signals transmitted by the signal acquisition module and making corresponding response mechanisms according to the sensor signals;
The communication system is composed of a wireless transparent transmission module and comprises a signal transmitting end connected with each fulcrum processing system and a signal receiving end connected with the central management system;
The signal acquisition module transmits the sensor signal to the main control module in each fulcrum processing system, and the main control module processes the corresponding information; the state indication is processed and the corresponding processing is carried out, meanwhile, the signal is transmitted to a central management system through a communication system, a central processing module of the central management system indicates and records the state of the water tower according to the received signal, and the command from the man-machine interaction system can remotely control each pivot processing system through a wireless transparent communication module to realize corresponding remote operation;
The central management system also comprises
The first external control module is connected with the central processing module and is used for manually inputting control signals and comprises a first control key, a photoelectric coupler TLP185, a current-limiting resistor R18 and a pull-up resistor R19, wherein the photoelectric coupler TLP185 is connected between the first control key and the central processing module and is used for isolating the input signals;
The fulcrum handling system further comprises
The second external control module is connected with the main control module and is used for manually inputting control signals and comprises a second control key, a photoelectric coupler TLP185, a current-limiting resistor R18 and a pull-up resistor R19, wherein the photoelectric coupler TLP185 is connected between the second control key and the main control module and is used for isolating the input signals;
The central management system also comprises
The central display module is connected with the central processing module and used for displaying the specific state of each water tower, and comprises a display HJ_240128 used for displaying more data information and an adjustable resistor R16 used for adjusting the contrast of the display;
The fulcrum handling system further comprises
The fulcrum display module is connected with the main control module and used for displaying the specific state of a certain water tower, and comprises a small display HJ_LCD12864 or HJ_LCD12832 used for displaying less data information and an adjustable resistor R16 used for adjusting the contrast ratio of the display;
The central management system also comprises
The central recording module is connected with the central processing module and used for recording the states of the water towers in real time and comprises a first clock unit and a first storage unit;
The first clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2;
The first storage unit comprises a storage card provided with a serial peripheral interface and an interface TF1 for connecting the storage card with a system, wherein the interface TF1 comprises a pin TF_CS for enabling the storage card, a pin TF_CD for detecting whether the storage card is inserted, a pin SCK for realizing a synchronous clock, data transmission pins MISO and MOSI and a storage card grounding end GND;
The fulcrum handling system further comprises
The fulcrum recording module is connected with the main control module and used for recording the state of a certain water tower in real time and comprises a second clock unit and a second storage unit;
the second clock unit consists of a real-time clock chip DS1302 and a crystal oscillator Y2;
The second memory unit comprises a memory card provided with a serial peripheral interface and an interface TF1 for connecting the memory card with a system, wherein the interface TF1 comprises a pin TF_CS for enabling the memory card, a pin TF_CD for detecting whether the memory card is inserted, a pin SCK for realizing a synchronous clock, data transmission pins MISO and MOSI and a memory card grounding end GND.
2. The water tower farm management system according to claim 1, wherein: the central processing module and the main control module are respectively a main control chip ATmega2560-16AU, and also comprise a programming interface and a reset circuit composed of a capacitor C5, a resistor R30 and an external key S1.
3. The water tower farm management system according to claim 1, wherein: the signal acquisition module comprises a signal acquisition interface used for being connected with a sensor,
The signal acquisition interface is also provided with a power supply interface DC_24V for supplying power to the Sensor, a signal output interface sensor_x for being connected with the main control module and transmitting Sensor signals, and a common ground GND for grounding the Sensor and the system.
4. A water tower farm management system according to claim 3, wherein: the signal acquisition module also comprises a precision resistor for converting a current signal of the current output type sensor into a voltage signal with a peak value within 5V.
5. The water tower farm management system according to claim 1, wherein: the communication system adopts a wireless transparent transmission module LoRa DRLM, and further comprises a voltage change circuit for converting different use voltages between the wireless transparent transmission module and the main control module and between the wireless transparent transmission module and the central processing unit, and a debugging unit for debugging and upgrading system firmware;
The voltage change circuit comprises a voltage reduction circuit for converting the IO pin voltage 5V of the main control module processor into the wireless transparent transmission module voltage 3.3V and a voltage increase circuit for converting the wireless transparent transmission module voltage 3.3V into the IO voltage 5V of the central processing module processor,
The debug unit comprises a conversion chip CH340G for realizing USB to TTL level conversion.
6. The water tower farm management system according to any of claims 1-5, wherein: the central input/output module comprises a first indicator lamp or a first alarm connected with the central processing module and a first output circuit arranged between the central processing module and the first indicator lamp or the first alarm and used for improving the output carrying capacity of the main control chip and preventing the main control chip from being damaged due to overlarge current;
The first output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm;
The fulcrum handling system further comprises
The fulcrum prompting module is connected with the main control module and used for prompting the state of the water tower according to the instruction of the main control module;
The fulcrum prompting module comprises a second indicator lamp or a second alarm connected with the main control module and a second output circuit arranged between the main control module and the second indicator lamp or the second alarm and used for improving the output carrying capacity of the main control chip and preventing the main control chip from being damaged due to overlarge current;
The second output circuit comprises an NPN triode 8050S, a load relay K1 driven by the triode, a current limiting resistor R34 connected between the output end of the main control chip and the triode, and an output port used for connecting an indicator lamp or an alarm.
7.The water tower farm management system according to any of claims 1-5, wherein: the power supply system consists of a central power supply system and a fulcrum power supply system, and comprises a power supply conversion module for converting external power supply DC_24V_in into internal power supply DC_24V, a power supply conversion module for converting DC_24V into power consumption required voltage of each module, and a voltage-dividing and current-limiting driving module for indicating the power supply state of each module;
the power supply conversion module comprises a diode D10 connected with an external power supply DC_24V_in and a fuse tube F1 connected with the diode D10;
The power conversion module comprises a first conversion circuit for converting DC_24V into DC5V and DC12V respectively and a second conversion circuit for converting DC5V into DC3.3V; the first conversion circuit comprises power conversion chips LM2596S-5 and LM2596S-12, freewheeling diodes D4 and D5, energy storage filter inductors L1 and L2 and filter capacitors C8 and C23, and the second conversion circuit comprises a conversion chip LM1117S-3.3;
the voltage-dividing current-limiting driving module comprises indicator lamps D6-D9 and current-limiting resistors R40-R43;
The power supply system further comprises a built-in battery for maintaining a system clock state when external power supply is abnormal, and the fulcrum power supply module trickles charges the built-in battery through the chip DS1302 when the external power supply is normal.
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