CN109062155B - Tap water production monitoring and water supply scheduling management system - Google Patents
Tap water production monitoring and water supply scheduling management system Download PDFInfo
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- CN109062155B CN109062155B CN201810882816.XA CN201810882816A CN109062155B CN 109062155 B CN109062155 B CN 109062155B CN 201810882816 A CN201810882816 A CN 201810882816A CN 109062155 B CN109062155 B CN 109062155B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000012544 monitoring process Methods 0.000 title claims abstract description 105
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 89
- 239000008399 tap water Substances 0.000 title claims abstract description 36
- 235000020679 tap water Nutrition 0.000 title claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 37
- 230000006855 networking Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000008054 signal transmission Effects 0.000 claims description 19
- 238000007726 management method Methods 0.000 claims description 18
- 230000006870 function Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 230000001012 protector Effects 0.000 claims description 15
- 239000007858 starting material Substances 0.000 claims description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
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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]
- G05B19/4185—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 the network communication
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31457—Factory remote control, monitoring through internet
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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
- 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 discloses a tap water production monitoring and water supply dispatching management system, which comprises: the system comprises a production monitoring terminal, a monitoring server, a network system and a system client; the production monitoring terminal comprises a water taking monitoring and control system, a tap water production monitoring and control system, a booster pump station monitoring and control system, a water supply network monitoring system and a cell secondary water supply equipment monitoring and control system; the network system comprises an industrial communication protocol conversion device, a firewall device and a ZigBee wireless networking system; the monitoring server is connected with the production monitoring terminal in a wired or wireless way; the system client is connected with the monitoring server through wires or wireless. The monitoring and scheduling system realizes the supervision of the links of tap water taking, production and conveying through perfect equipment connection, abundant software interfaces and a convenient browsing mode, effectively improves the economic benefit and social benefit of water supply enterprises, and promotes the sustainable and healthy development of water supply utilities.
Description
Technical Field
The invention relates to a tap water production monitoring and water supply dispatching management system.
Background
Tap water is an important component of daily life of residents, water supply safety and water supply quality are related to thousands of households, and therefore, it is necessary to comprehensively monitor each link from water taking to water supply in tap water production, but the following problems exist in a general monitoring system:
1. the general production monitoring system can only monitor local production equipment, and cannot monitor production equipment which is not located in the same geographical position.
2. The monitoring device can only monitor main production equipment, and cannot monitor all production equipment.
3. The system has the condition that a plurality of systems coexist and are used separately, and the systems cannot be unified into one system platform, for example, a water works, a pressurizing station and secondary water supply equipment all use respective platforms respectively, and data among the systems cannot be intercommunicated and shared.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a data acquisition hardware solution and a scheduling management system from water intake to a user end aiming at the existing tap water production and delivery process.
The purpose of the invention is realized by the following technical scheme: a tap water production monitoring and water supply scheduling management system comprises: the system comprises a production monitoring terminal, a monitoring server, a network system and a system client;
the production monitoring terminal comprises a water taking monitoring and control system, a tap water production monitoring and control system, a booster pump station monitoring and control system, a water supply network monitoring system and a cell secondary water supply equipment monitoring and control system;
the network system comprises an industrial communication protocol conversion device, a firewall device and a ZigBee wireless networking system;
the monitoring server is connected with the production monitoring terminal in a wired or wireless way;
the system client is connected with the monitoring server through wires or wirelessly.
As a preferred mode, the water taking monitoring and control system comprises a valve, a water taking pump, a flowmeter, an online water quality instrument, a flowmeter and a liquid level meter, wherein the control of the valve and the acquisition of the working state are completed by an electronic intelligent motor protector, the control of the water taking pump and the acquisition of the working state are completed by a frequency converter and a soft starter, the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with a PLC (programmable logic controller) through a DeviceNet or ProfiBus industrial field bus, and almost all running parameters of the equipment such as running current, voltage, torque, frequency and the like can be acquired by the mode; the flow meter, the on-line water quality meter, the flow meter and the liquid level meter are connected to the PLC system through 4-20MA signals or MODBUS buses.
As a preferred mode, the control signals and the equipment working state signals are centralized in the PLC, and as the water taking point of a river or a reservoir is generally not in the same geographical position with a water supply plant, the control signals and the equipment working state signals are connected with a production monitoring server by adopting wired optical fibers, VPN (virtual private network) or non-line-of-sight wireless gateways according to the distance between the water taking point and the water supply plant and the field conditions.
Preferably, if an enterprise has more than one water works or pressurizing stations under the control of the enterprise, the water works need to be networked or the pressurizing stations need to be networked with the water works, and due to the fact that data communication between the water works is large, laying of optical fibers is expensive, and sometimes cannot be done due to condition limitation, and therefore, networking in a VPN mode is a good choice. The VPN connection mode of the system is shown in a figure (VPN network), a special network is established on the Internet by using a VPN router in the VPN connection mode to carry out encrypted communication, a special line does not need to be laid, and the system is low in use cost, flexible and high in safety.
As a preferred mode, according to the functions in the production flow, the device is divided into a plurality of areas of a distribution well, a sedimentation tank, a filter tank, a back flushing pump room, a recovery water tank, a sludge adjusting tank, a dehydration room, a sludge concentration tank, a medicine adding, a chlorine adding, a water feeding pump and a clean water tank, equipment in each area is controlled by one PLC, all equipment with a motor is connected into the PLC through an electronic intelligent motor protector through a DeviceNet or ProfiBus industrial field bus, instrument parameters such as liquid level, residual chlorine, turbidity, flow, pressure and the like are connected into a PLC system through a 4-20MA or MODBUS bus, data of the PLC system is connected into a production monitoring server according to an OPC specification, the production monitoring server follows the OPC specification, data of the PLCs produced by different manufacturers can be read, and system integration is facilitated.
As a preferable mode, in the production monitoring server, the operation data can be monitored in real time, all important data, such as turbidity, residual chlorine, liquid level, conductance, pressure of the water delivery system, instantaneous and accumulated flow, voltage and current of all pumps, output frequency and other important parameters in the production process are stored in the database of the monitoring server, the query function of a data report and a data curve can be realized, the data can be dumped into a universal database such as an sqlServer, MySQL, ORACLE and the like according to time, period and trigger values, and the data in the universal database can be read into the production monitoring system, so that the data interaction between the production monitoring system and other application programs can be realized.
In the system, a ZigBee wireless communication network is adopted, data are transmitted from one network node to another node through a router and a coordinator in a relay mode through radio waves, any two devices can be wirelessly interconnected, network data transmission of Modbus protocol signals is achieved, meanwhile, high communication efficiency is achieved, and the network signals are encrypted and transmitted, and high safety is achieved.
Preferably, when the pressure station is arranged, the pressure station is an extension of a tap water plant, the equipment of the pressure station mainly comprises a liquid level meter, a flow meter, a pressure meter, a valve, an online water quality meter, a water supply pump and the like, instrument parameters such as liquid level, residual chlorine, turbidity, flow, pressure and the like are accessed into a PLC system through a 4-20MA or MODBUS bus, wherein the control and the acquisition of the working state of the valve are completed through an electronic intelligent motor protector, the control and the acquisition of the working state of the water supply pump are completed through a frequency converter and a soft starter, and the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with the pressure station PLC through a DeviceNet or a ProfiBus industrial field bus.
Preferably, the pressurizing station PLC system communicates with the waterworks PLC system and the production monitoring server by a VPN method.
As a preferred mode, when monitoring abnormal production data or equipment faults, the production monitoring system immediately carries out sound and light alarm, alarm information is stored in an alarm database and can carry out historical inquiry or alarm report printing, and meanwhile, the production monitoring system calls a short message interface and a micro message information pushing interface to send the alarm information to related personnel.
The invention has the beneficial effects that: the monitoring and scheduling system provides a collection mode and an equipment control mode of all production data in the links of water taking, production and water supply from tap water through perfect equipment connection, abundant software interfaces and a convenient browsing mode, realizes supervision on the links of water taking, production and transportation from tap water, effectively promotes economic benefits and social benefits of water supply enterprises, and promotes continuous and healthy development of water supply utilities.
Drawings
FIG. 1 is a process flow for water extraction;
FIG. 2 is a water intake process signal;
FIG. 3 is a VPN network;
FIG. 4 is a process flow for producing tap water;
FIG. 5 is a ZigBee wireless network;
FIG. 6 is a schematic view of communication of the secondary water supply apparatus;
FIG. 7 is a system software architecture;
FIG. 8 is a signal of a tap water production process;
fig. 9 is one of partial schematic views of a signal repeating section for a secondary water supply apparatus;
fig. 10 is a second partial schematic view of a signal forwarding device for a secondary water supply device;
fig. 11 is a third partial schematic view of a signal forwarding device for a secondary water supply device;
fig. 12 is a fourth partial schematic view of a signal repeating section of a signal repeating apparatus for a secondary water supply apparatus;
fig. 13 is a fifth partial schematic view of a signal repeating section of a signal repeating apparatus for a secondary water supply apparatus;
fig. 14 is a sixth partial schematic view of a signal repeating section of a signal repeating apparatus for a secondary water supply apparatus;
fig. 15 is a seventh partial schematic view of a signal repeating section of the signal repeating apparatus for the secondary water supply apparatus;
fig. 16 is a schematic diagram of a signal receiving part of a signal repeating apparatus for a secondary water supply apparatus.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
A tap water production monitoring and water supply scheduling management system comprises: the system comprises a production monitoring terminal, a monitoring server, a network system and a system client;
the production monitoring terminal comprises a water taking monitoring and control system, a tap water production monitoring and control system, a booster pump station monitoring and control system, a water supply network monitoring system and a cell secondary water supply equipment monitoring and control system;
the network system comprises an industrial communication protocol conversion device, a firewall device and a ZigBee wireless networking system;
the monitoring server is connected with the production monitoring terminal in a wired or wireless way;
the system client is connected with the monitoring server in a wired or wireless way; the system client is an IE browser and is used for presenting a system interface by accessing the IP address of the monitoring server, and all human-computer interaction functions are presented in the system client.
The management system software comprises 7 parts such as a system interface, a data platform, a real-time database, an IO communication service program, a network release, an extension module, an interface program and the like, and is shown in figure 7.
The system interface is used for presenting a graphical interface of the system, and the required human-computer interaction function is realized; the data platform is used for providing related functions of system management, system configuration, system user management, system working logs and events and system deployment; the real-time database mainly collects real-time data through an IO communication service program; the functions of statistics, alarming, historical data filing, database redundancy and the like are realized; the IO communication service program is mainly responsible for being connected with external equipment and carrying out data interaction; the network release mainly provides the system support for browsing pictures through a WEB browser; the extension module is mainly used for providing four modes of a DataServer, an OPCServer, an ODBCRouter and a CommServer for data interaction with a third-party software system; and the interface program mainly provides an ActiveX control to facilitate a programmer to acquire or push system data.
In a preferred embodiment, the water intake monitoring and control system comprises a valve, a water intake pump, a flow meter, an online water quality meter, a flow meter and a liquid level meter, wherein the control of the valve and the acquisition of the working state are completed by an electronic intelligent motor protector, the control of the water intake pump and the acquisition of the working state are completed by a frequency converter and a soft starter, the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with a PLC (programmable logic controller) through a DeviceNet or ProfiBus industrial field bus, and almost all operating parameters of the equipment such as operating current, voltage, torque, frequency and the like can be acquired in the mode; the flow meter, the on-line water quality meter, the flow meter and the liquid level meter are connected to the PLC system through 4-20MA signals or MODBUS buses.
FIG. 2 is a signal diagram of a process of taking water from a double-water-source water plant, mainly comprising online water quality meters "Cr", "TPN", "Hg", "HMP", "TQX", "L", "TU", "PH", "NH", "P" and "F", wherein the output signals of the meters are 4-20MA signals; the electric signals mainly comprise control and feedback signals of an electric valve and control and feedback signals of a variable-frequency water pump.
In a preferred embodiment, the control signals and the equipment operating state signals are centralized in the PLC, and since the water taking point of a river or a reservoir is generally not in the same geographical position with the water supply plant, the PLC is connected with the production monitoring server by adopting wired optical fibers, VPN or non-line-of-sight wireless gateways according to the distance between the water taking point and the water supply plant and the field conditions, as shown in figure 3.
In a preferred embodiment, if the enterprise has more than one water works or pressurizing stations under the control of the enterprise, the water works need to be networked or the pressurizing stations need to be networked with the water works, because the data communication between the water works is large, the laying of optical fiber lines is expensive, sometimes the laying cannot be carried out due to condition limitation, and therefore, the networking in a VPN manner is a good choice. The VPN connection mode of the system is shown in figure 3(VPN network), a special network is established on the Internet by using a VPN router in the VPN connection mode to carry out encrypted communication, a special line does not need to be laid, and the system is low in use cost, flexible and high in safety.
In a preferred embodiment, fig. 4 shows a production process flow of a water works, raw water from a water taking point is sent to a clean water tank after being treated by dosing, sedimentation, filtration, chlorination and the like, and then is sent to a water supply network through a water pump. The signals of process instruments required in the production process of tap water are shown in a figure 8, and mainly relate to a pressure instrument, a flow instrument, an air flow instrument, a liquid level instrument, a turbidity analyzer, a PH instrument, a residual chlorine instrument, a conductivity instrument, a alkalinity instrument, a sludge interface instrument, a sludge concentration instrument and the like, and instrument data are accessed to a PLC system through a 4-20MA or MODBUS bus; the equipment can be divided into several areas of 'distribution well, sedimentation tank, filter tank', 'back flushing pump house, recovery water tank, sludge regulating tank', 'dehydration room, sludge concentration tank', 'dosing, chlorination', 'water feeding pump and clear water tank' according to the function and area division in the production flow, the equipment in each area is controlled by a PLC, all the equipment with motors are connected into the PLC through a DeviceNet or ProfiBus industrial field bus through electronic intelligent motor protectors, the data of the PLC system is connected into a production monitoring server according to OPC standards, the production monitoring server follows OPC standards, the data of the PLC produced by different manufacturers can be read, and the system integration is facilitated.
In a preferred embodiment, in the production monitoring server, the operation data can be monitored in real time, all important data, such as turbidity, residual chlorine, liquid level, conductance, pressure of a water delivery system, instantaneous and accumulated flow, voltage and current of all pumps, output frequency and other important parameters in the production process are stored in a database of the monitoring server, the query function of a data report and a data curve can be realized, the data can be dumped into a universal database such as an SqlServer, MySQL, ORACLE and the like according to time, period and trigger values, and the data in the universal database can be read into the production monitoring system, so that the data interaction between the production monitoring system and other application programs can be realized.
In a preferred embodiment, in the production and transportation links of tap water, the devices or meters are not favorable for laying control or communication lines, in the system, a ZigBee wireless communication network is adopted, data are transmitted from one network node to another node through a router and a coordinator in a relay mode through radio waves, any two devices can be wirelessly interconnected, network data transmission of Modbus protocol signals is achieved, meanwhile, the communication efficiency is high, and the network signals are subjected to encryption transmission and have high safety, as shown in figure 5.
In a preferred embodiment, when the pressurizing station is arranged, the pressurizing station is an extension of a tap water plant, the equipment of the pressurizing station mainly comprises a liquid level meter, a flow meter, a pressure meter, a valve, an online water quality meter, a water supply pump and the like, instrument parameters such as liquid level, residual chlorine, turbidity, flow, pressure and the like are connected into a PLC system through a 4-20MA or MODBUS bus, wherein the control and the acquisition of the working state of the valve are completed through an electronic intelligent motor protector, the control and the acquisition of the working state of the water supply pump are completed through a frequency converter and a soft starter, and the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with the PLC of the pressurizing station through a DeviceNet or a ProfiBus industrial field bus.
In a preferred embodiment, the pressurization station PLC system communicates with the waterworks PLC system and the production monitoring server by means of a VPN, as shown in fig. 6.
In a preferred embodiment, when monitoring abnormal production data or equipment failure, the production monitoring system immediately performs sound and light alarm, alarm information is stored in an alarm database and can perform historical inquiry or alarm report printing, and meanwhile, the production monitoring system calls a short message interface and a micro message information pushing interface to send the alarm information to related personnel.
Besides the above optimization scheme, the present application can optimize from the following aspects:
1. the production monitoring server is communicated with the secondary water supply equipment of the high-rise residential district through a 2G, 3G or 4G network of a mobile communication operator, and the secondary water supply equipment of the high-rise residential district is usually installed in a basement or an underground garage, so that 2G, 3G or 4G signals are difficult to cover.
2. The production monitoring system provides DDE, OPC and ActiveX controls to interact with other applications, and also through databases.
3. The production monitoring system provides a WEB browsing mode and can access the monitoring picture through a browser.
4. All operations of the system can be divided through user rights so as to improve the operation safety.
The system realizes the following functions:
1. can connect river or reservoir water intaking point, real time monitoring water intaking equipment's operational aspect.
2. Can connect other water plants and share data.
3. The system can comprehensively reflect the running condition of tap water production equipment, remotely control the equipment, monitor running data in real time, and has the functions of permanently storing important running parameters, and inquiring data reports and data curves.
4. The intelligent water supply system can be connected with a water supply pressurizing station to remotely control the pressurizing station, and has the functions of real-time monitoring, permanent storage of important operating parameters, data report and query of data curves.
5. The system can be connected with secondary pressurizing equipment in a water supply range of a water plant, remotely controls the secondary water supply equipment, and has a real-time monitoring function, a permanent storage function of important operating parameters, and a query function of data reports and data curves.
6. Has the function of alarming the abnormity of equipment and production conditions.
7. And the data can be seamlessly docked with other third-party software systems.
8. The system adopts a B/S architecture, and can enter a production monitoring system of a company to master the production condition of the company as long as the system can be connected with the Internet anywhere.
9. The system has perfect safety guarantee and authority authentication functions.
10. The hardware system in the system relies on an industrial field bus, can collect the working state of equipment and instrument data as much as possible, simultaneously greatly reduces the external wiring of a hardware control system, and reduces the failure rate.
The signal switching equipment of the secondary water supply equipment is explained as follows:
a signal retransmission device for secondary water supply equipment comprises a signal retransmission part and a signal receiving part;
the signal forwarding part comprises a first signal transmission wireless module, a communication module and a processor;
a communication module: for communicating with a monitoring center;
the processor is respectively connected with the first signal transmission wireless module and the communication module;
the signal receiving section includes: a second signal transmission wireless module, a signal shaping part and an interface;
the second signal transmission wireless module is connected with the first signal transmission wireless module and is connected with the interface through the signal shaping part,
the interface is used for communicating with the secondary water supply equipment;
the system further comprises a download interface J2, wherein the download interface J2 is an ICSP interface, and the download interface J2 is connected with the processor.
In a preferred embodiment, the interface comprises RS232 and RS485, and the RS232 and RS485 are respectively connected with the signal shaping part.
In a preferred embodiment, the processor employs ATMEGA 328P.
In a preferred embodiment, the first signaling radio and the second signaling radio are each provided with an E50-TTL-500 module.
In a preferred embodiment, the communication module comprises a USR-LTE-7S4 module; the signal shaping part comprises 74HC04D six groups of inverters.
In a preferred embodiment, the signal forwarding part is provided with a display unit, which is connected with the processor.
In a preferred embodiment, the invention further comprises a power supply circuit, the power supply circuit provides 5V power supply, the power supply circuit comprises an LM2596S-5 five-terminal voltage-stabilizing integrated block, an output terminal of the LM2596S-5 five-terminal voltage-stabilizing integrated block is connected with an inductor L1 and a diode D5, the diode D5 is grounded, and an inductor L1 is respectively connected with a feedback terminal of the LM2596S-5 five-terminal voltage-stabilizing integrated block, a capacitor C2 and a capacitor C3; the capacitor C2 and the capacitor C3 are grounded, the on/off end and the GND end of the LM2596S-5 five-terminal voltage-stabilizing integrated block are grounded, the on/off end of the LM2596S-5 five-terminal voltage-stabilizing integrated block is also connected with the capacitor C1, and the capacitor C1 is grounded.
In a preferred embodiment, the present invention further comprises a key unit, wherein the key unit is used for setting a communication baud rate, a data bit, a stop bit and a data verification mode;
the key unit comprises S1-S16 keys, and the S1-S16 keys are connected with the processor.
In a preferred embodiment, the invention also comprises an indicator light circuit, wherein the indicator light circuit comprises resistors R2-R9, light emitting diodes D1-D4, and triodes Q1 and Q2;
the resistors R2-R5 are respectively connected with a 5v power supply, the resistor R2 is connected with the triode Q1 through the light emitting diode D1, and the triode Q1 is grounded; the triode Q1 is connected with the communication module through a resistor R6, and a resistor R7 is connected between the base electrode and the emitting electrode of the triode Q1;
the resistor R3 is connected with the triode Q2 through the light emitting diode D2, the emitter of the triode Q2 is grounded, the triode Q2 is connected with the communication module through the resistor R8, and the resistor R9 is connected between the base and the emitter of the triode Q2;
the resistor R4 is connected with the first signal transmission wireless module through the light-emitting diode D3;
the resistor R5 is connected with the LED D4, and the LED D4 is grounded.
A signal forwarding device forwarding method for secondary water supply equipment comprises the steps that after a working mode is entered, a data request of a monitoring center is transmitted to a communication module through a 4G network, the communication module transmits received data to a processor, and the processor forwards the data to a first signal transmission wireless module;
the first signal transmission wireless module is in wireless communication with the second signal transmission wireless module, the second signal transmission wireless module sends data to the signal shaping part for signal shaping, and the shaped signal is transmitted to the secondary water supply equipment through an RS485 or RS232 interface.
Signal transfer section (as shown in fig. 9 to 15, including components and connection relations):
the intelligent water supply system comprises a signal transmission wireless module U2 between the intelligent water supply system and secondary water supply equipment, a signal working state display light emitting diode D3, a monitoring center communication module U3, U3 working state display light emitting diodes D1-D2, an embedded processor part U1, a firmware downloading interface J2, a power supply part U4, a keyboard for parameter setting S1-S16 and a display screen P1.
U2, U3 adopt the socket to be connected with the mainboard, and U2 can select 433MHz, 315MHz, 230MHz, 170MHz wireless module according to the on-the-spot condition of basement, and U3 can select GPRS, 3G or 4G module according to the local mobile network coverage condition, and under general condition, the used 4G module of this equipment can already satisfy the operation requirement. When the U2 has data to send and receive, D3 can flash fast, and it shows that U2 works normally and has data to send and receive, when it is detected that the mobile network is normal, D1 can flash according to the rule of 2 times/second of 2G network, 3 times/second of 3G network, 4 times/second of 4G network, if no network exists, D1 is not bright, when U3 works normally, D2 is always bright, and D4 is a power indicator of equipment.
The device adopts a wide voltage design, can work in a power input range of 9V-40V, and the U4 can output 3A driving current and has good linearity and load regulation characteristics so as to meet the power requirements of simultaneous work of U2 and U3.
The embedded processor U1 of the device selects ATMEGA328P which is a high-performance and low-power consumption 8-bit microcontroller, adopts an advanced RISC system structure, has higher running speed than a 51 or PIC processor with the same frequency, has rich on-chip resources, is very convenient to download programs, has 32K Flash memory and 1K EEPROM for ATMEGA328P, can completely meet the control requirements of the device, has lower cost and single chip selling price of about 10 yuan.
The equipment has three working modes of working, setting and testing.
When the monitoring center enters a working mode, a data request of the monitoring center is transmitted to the U3 through a 4G network of a mobile communication operator to be received, the U3 transmits the received data to the U1, the U1 forwards the data to the U2, the U2 transmits the data to a same-frequency wireless module of the secondary water supply equipment through a low-frequency wireless signal, the data is converted into an RS485 or RS232 signal after being shaped and then transmitted to a PLC system of the secondary water supply equipment, and the PLC system receives the data request signal and then transmits the data to the monitoring center through the reverse process of the above process.
When entering the setting mode, the parameters of U2 and U3 can be set through the keyboards S1-S16, mainly including communication baud rate, data bits and stop bits, and data verification mode.
When the testing mode is entered, the embedded processor U1 can simulate the monitoring center to send a data request to the secondary water supply equipment, test the correctness of the data returned by the secondary water supply equipment and the communication condition of the basement, or simulate the secondary water supply equipment to respond to the data request of the monitoring center, and test the data request of the monitoring center and the communication condition of the ground.
Signal receiving section (as shown in fig. 16, including components and connections):
the wireless signal transmission device comprises a signal transmission wireless module U14 communicated with a signal forwarding device, a signal shaping part U13, an RS232 interface U12, an RS485 interface U11, a power supply part U15 and a working state indicator lamp D13.
The U14 adopts the socket to be connected with the mainboard, can select for use with 433MHz, 315MHz, 230MHz, 170MHz wireless module of the same frequency that uses on the signal retransmission equipment according to the on-the-spot condition of basement. D13 is a common anode red and green double-color LED, when the power is on, D13 is green, when U14 has data to receive and send, D13 will flash rapidly, which indicates that U14 works normally and has data to receive and send.
U13 is a 6 inverter, which in this device acts to shape the signal and enhance the loadability of the U14 data outlet.
The equipment is provided with two output interfaces of RS232 and RS485, and can be selected according to the type selection of the secondary water supply equipment PLC.
The device adopts a wide voltage design, can work in a 9V-40V power supply input range, and the U15 can output 3A driving current and has good linearity and load regulation characteristics so as to meet the power supply requirement when the U14 works.
When the water supply device works normally, data received through the U14 are shaped through the U13 and then are sent to the RS232 interface U11 and the RS485 interface U12 and sent to secondary water supply equipment, and the data sending process is the reverse process of the above process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A tap water production monitoring and water supply scheduling management system is characterized by comprising: the system comprises a production monitoring terminal, a monitoring server, a network system, a system client and signal forwarding equipment for secondary water supply equipment; the production monitoring terminal comprises a water taking equipment operation data acquisition and control system, a tap water production equipment operation data acquisition and control system, a pressure pump station equipment operation data acquisition and control system, a water supply network water quality, pressure and flow data acquisition system and a community secondary water supply equipment operation data acquisition and control system; the network system comprises an industrial communication protocol conversion device, a firewall device and a ZigBee wireless networking system; the monitoring server is connected with the production monitoring terminal in a wired or wireless way; all data collected by the production monitoring terminals are processed in a centralized manner in the monitoring server, and all operation instructions of the system are issued by the monitoring server; the system client is connected with the monitoring server in a wired or wireless way;
the signal forwarding equipment for the secondary water supply equipment comprises a signal forwarding part and a signal receiving part;
the signal forwarding part comprises a first signal transmission wireless module, a communication module and a processor;
the communication module is used for communicating with the monitoring center;
the processor is respectively connected with the first signal transmission wireless module and the communication module;
the signal receiving part comprises a second signal transmission wireless module, a signal shaping part and an interface;
the second signal transmission wireless module is connected with the first signal transmission wireless module, the second signal transmission wireless module is connected with the interface through the signal shaping part, and the interface is used for communicating with secondary water supply equipment.
2. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: the water taking monitoring and control system comprises a valve, a water taking pump, a flowmeter, an online water quality instrument, a flowmeter and a liquid level meter, wherein the control of the valve and the acquisition of the working state are completed through an electronic intelligent motor protector, the control of the water taking pump and the acquisition of the working state are completed through a frequency converter and a soft starter, the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with a PLC through a DeviceNet or a ProfiBus industrial field bus, and the flowmeter, the online water quality instrument, the flowmeter and the liquid level meter are accessed into the PLC system through a 4-20MA signal or an MODBUS bus.
3. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: the control signal and the equipment working state signal are centralized in the PLC, and as the water taking point of a river or a reservoir is generally not in the same geographical position with a water supply plant, the control signal and the equipment working state signal are connected with a production monitoring server by adopting wired optical fibers, VPN (virtual private network) or a non-line-of-sight wireless gateway according to the distance between the water taking point and the water supply plant and the field conditions.
4. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: if the enterprise has more than one water works or pressurizing stations, the water works need to be networked or the pressurizing stations and the water works need to be networked, and due to the fact that data communication quantity between the water works is large, laying of optical fiber lines is expensive, sometimes laying cannot be carried out due to condition limitation, and therefore networking is carried out in a VPN mode.
5. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: according to the functions in the production flow, the device is divided into a plurality of areas, namely a distribution well, a sedimentation tank, a filter tank, a back flushing pump room, a recovery water tank, a sludge regulating tank, a dehydration room, a sludge concentration tank, a dosing, chlorination, a water feeding pump and a clean water tank, equipment in each area is controlled by a PLC, all equipment with a motor is connected into the PLC through a DeviceNet or ProfiBus industrial field bus through an electronic intelligent motor protector, parameters of a liquid level, residual chlorine, turbidity, flow and pressure instrument are connected into a PLC system through a 4-20MA or MODBUS bus, data of the PLC system is connected into a production monitoring server according to OPC specifications, the production monitoring server follows OPC specifications, data of the PLCs produced by different manufacturers can be read, and system integration is facilitated.
6. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: in the production monitoring server, the operational data can be monitored in real time, and all important data is stored in the database of the monitoring server.
7. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: in the production and transportation links of tap water, equipment or instruments are not beneficial to laying control or communication lines, a ZigBee wireless communication network is adopted in the system, data are transmitted from one network node to another node through a router and a coordinator in a relay mode through radio waves, and any two pieces of equipment can be wirelessly interconnected.
8. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: when the pressure station is arranged, the pressure station is an extension of a tap water plant, the equipment of the pressure station mainly comprises a liquid level meter, a flow meter, a pressure gauge, a valve, an online water quality meter and a water delivery pump, wherein the liquid level, the residual chlorine, the turbidity, the flow and the parameters of the pressure meter are accessed into a PLC system through a 4-20MA or MODBUS bus, the control of the valve and the acquisition of the working state are finished through an electronic intelligent motor protector, the control of the water delivery pump and the acquisition of the working state are finished through a frequency converter and a soft starter, and the electronic intelligent motor protector, the frequency converter and the soft starter are interacted with the PLC of the pressure station through a DeviceNet or a ProfiBus industrial field bus.
9. The tap water production monitoring and water supply scheduling management system of claim 8, wherein: and the pressurization station PLC system is communicated with the tap water plant PLC system and the production monitoring server in a VPN mode.
10. The tap water production monitoring and water supply scheduling management system of claim 1, wherein: when monitoring abnormal production data or equipment failure, the production monitoring system immediately performs sound-light alarm, alarm information is stored in an alarm database and can perform historical inquiry or alarm report printing, and meanwhile, the production monitoring system calls a short message interface and a WeChat information pushing interface to send the alarm information to related personnel.
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| CN109634241A (en) * | 2018-12-25 | 2019-04-16 | 华南智能机器人创新研究院 | Automatic production control method and system in a kind of production of tap water |
| CN109725120A (en) * | 2018-12-25 | 2019-05-07 | 华南智能机器人创新研究院 | A kind of intelligent data monitoring method and system based on tap water production |
| CN110708519B (en) * | 2019-11-05 | 2020-12-08 | 太原理工大学 | Interactive monitoring method for industrial field environment |
| CN111405066A (en) * | 2020-04-21 | 2020-07-10 | 佛山市灏飞科技信息技术有限公司 | Data processing system of water supply equipment |
| CN111966020A (en) * | 2020-08-26 | 2020-11-20 | 武汉征原电气有限公司 | Intelligent water using unit remote monitoring and diagnosing system |
| CN112671929B (en) * | 2021-01-04 | 2022-07-01 | 薛金山 | Time-sharing multiplexing method for communication interfaces of old secondary water supply equipment |
| CN113495543A (en) * | 2021-06-04 | 2021-10-12 | 石家庄市光大机电设备有限公司 | DCS control system of water works |
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