CN103696456A - Internet-of-things signal transmission based frequency-variable constant-pressure water supply system and frequency-variable constant-pressure water supply method - Google Patents
Internet-of-things signal transmission based frequency-variable constant-pressure water supply system and frequency-variable constant-pressure water supply method Download PDFInfo
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- CN103696456A CN103696456A CN201410000475.0A CN201410000475A CN103696456A CN 103696456 A CN103696456 A CN 103696456A CN 201410000475 A CN201410000475 A CN 201410000475A CN 103696456 A CN103696456 A CN 103696456A
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Abstract
The invention discloses an internet-of-things signal transmission based frequency-variable constant-pressure water supply system which comprises an internet-of-things signal collection and transmission device, a water inlet, a water pump unit, a water outlet and a frequency-variable control cabinet. The water inlet is arranged at a water source and is connected with the input end of the water pump unit through a pipeline. The output end of the water pump unit is connected with the water outlet through a pipeline. The water outlet is connected with a water consuming system through a pipeline. The internet-of-things signal collection and transmission device arranged at the extreme pressure point of the water consuming system collects pressure signals of the extreme pressure point and sends the signals to the frequency-variable control cabinet. The frequency-variable control cabinet controls the water pump unit to operate in a frequency-variable mode according to the signals. According to the system, real-time transmission of the signals is realized through the internet of things, real-time monitoring on a signal detector and a frequency converter is realized, and accordingly, stability and safety of the water supply system are guaranteed. The invention further discloses an internet-of-things signal transmission based frequency-variable constant-pressure water supply method.
Description
Technical field
The present invention relates to a kind of method of supplying water, be specifically related to a kind of Internet of Things signal transmission constant pressure water supply system.The invention still further relates to a kind of by the constant pressure water supply method of Internet of Things signal transmission.
Background technology
At present, resident living water and enterprise's industrial water all adopt variable frequency water supply substantially.Because the least favorable point in water system is the highest point farthest, be all the demand pressure of estimating a least favorable point conventionally, set the pressure of water system, and carry out variable frequency water supply according to the demand pressure value of this estimation.
Existing supply equipment collects the pressure signal of exit of pump by checkout gear, pressure signal is passed to frequency converter or programmer the inside in real time, by the speed governing operation of Frequency Converter Control water pump, with the pressure of assure feed water system.The largest benefit of this variable frequency water supply is that pressure of supply water is stable; And shortcoming is, for the water that guarantees that least favorable is selected, can only pressure be estimated highlyer, reserve more surplus, in case least favorable point is not used water.
Owing to can not grasping accurately the true pressure demand of least favorable point, cause error to cross the operation of ambassador's water system and waste energy; Because water system excess pressure is used, pipe flow speed is too urgent, can cause again the waste of water resource.
In addition, once signal supervisory instrument or frequency converter break down, whole water system will all be cut off the water, and the delivery cycle of frequency converter is long, the resident and the infrastructure management company that often cause the anhydrous use of common people Duo and cause, water supply company friction dispute, also therefore reason is cut off the water and is caused enterprise to produce stopping work.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Internet of Things signal transmission constant pressure water supply system, and it can the stability of assure feed water system and the safety of water system.
For solving the problems of the technologies described above, the technical solution of Internet of Things signal transmission constant pressure water supply system of the present invention is:
Comprise Internet of Things signals collecting transmission equipment, water inlet, water pump assembly, delivery port, frequency-conversion control cabinet, place, water source arranges water inlet, and water inlet connects the input of water pump assembly by pipeline, and the output of water pump assembly connects delivery port by pipeline; Delivery port connects water system by pipeline; Current from water source, flow through water inlet, water pump assembly, flow out the water system of supplying with user from delivery port; Delivery port is provided with signal supervisory instrument and emergency starting device; The least favorable point of water system is provided with Internet of Things signals collecting transmission equipment, and Internet of Things signals collecting transmission equipment gathers the pressure signal of least favorable point, and signal is sent to frequency-conversion control cabinet; Frequency-conversion control cabinet is according to this signal controlling water pump assembly converting operation.
Described Internet of Things signals collecting transmission equipment comprises pressure sensor, signal processing module, GPRS module, and pressure sensor is arranged at described least favorable point place; Pressure sensor connects signal processing module by holding wire, and signal processing module connects GPRS module; Pressure sensor gathers the pressure signal of least favorable point and is transferred to signal processing module, and signal processing module sends GPRS module to after the signal receiving is processed; GPRS module sends to frequency-conversion control cabinet by Internet of Things by signal.
Described frequency-conversion control cabinet comprises wireless receiving module, PLC controller, Digital PID Controller, the frequency converter connecting successively, and frequency converter is connected with described water pump assembly by holding wire; The signal supervisory instrument of described delivery port is connected with the PLC controller of frequency-conversion control cabinet by holding wire with emergency starting device; Wireless receiving module receives the signal that described GPRS module and signal supervisory instrument and emergency starting device send in real time, be transferred to after treatment PLC controller, PLC controller is transferred to Digital PID Controller after the signal of receiving is processed, Digital PID Controller is transferred to frequency converter by automatic control instruction signal, and frequency converter is controlled the rotating speed of described water pump assembly according to instruction.
It is a kind of by the constant pressure water supply method of Internet of Things signal transmission that the present invention also provides, and its technical solution is to comprise following process:
Internet of Things signals collecting transmission equipment gathers the pressure signal of least favorable point, after being processed, gathered pressure signal sends to the wireless receiving module of frequency-conversion control cabinet by Internet of Things, wireless receiving module is transferred to PLC controller as processing foundation after the signal receiving is processed, and frequency-conversion control cabinet is controlled water pump assembly speed governing operation according to result; Meanwhile, the signal supervisory instrument of delivery port gathers pump group outlet pressure value to detect in real time the running status of water system and signal to be sent to the PLC controller of frequency-conversion control cabinet, realizes the real-time monitoring to ductwork pressure.
When described signal supervisory instrument detect that Internet of Things signals collecting transmission equipment breaks down or GPRS module and wireless receiving module between communication when unsuccessful, signal supervisory instrument is transferred to the PLC controller in frequency-conversion control cabinet by the pressure signal of delivery port, PLC controller is after judgement and processing, water pump assembly is switched to local control model by mode of operation, realizes frequency control operation and emergency starting.
When described signal supervisory instrument, frequency converter, any one breaks down, emergency starting device sends emergency starting control signal to the PLC controller in frequency-conversion control cabinet, controls water system and continues to supply water.
The technique effect that the present invention can reach is:
The present invention directly gathers the actual pressure signal at least favorable point place in water system and dynamically controls the pressure of water system as foundation, therefore can be more accurate to the control of the real demand pressure of water system, water system can be supplied water by actual demand pressure, make the operation of water system more energy-conservation, and saving water resource more.
The present invention realizes the real-time Transmission of signal by Internet of Things; realization is monitored in real time to signal supervisory instrument and frequency converter; realize Long-distance Control; can either protect pipeline can guarantee again to realize sustainable water supply when chance failure, thus can the stability of assure feed water system and the safety of water system.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the schematic diagram of Internet of Things signal transmission constant pressure water supply system of the present invention;
Fig. 2 is system flow chart of the present invention.
Description of reference numerals in figure:
1 is Internet of Things signals collecting transmission equipment, and 2 is least favorable point,
3 is wireless receiving module, and 4 is water source,
5 is water inlet, and 6 is water pump assembly,
7 is frequency-conversion control cabinet, and 8 is PLC controller,
9 is Digital PID Controller, and 10 is frequency converter,
11 is delivery port, and 12 is signal supervisory instrument,
13 is emergency starting device, and 14 is pressure sensor,
15 is signal processing module, and 16 is GPRS module.
The specific embodiment
As shown in Figure 1, Internet of Things signal transmission constant pressure water supply system of the present invention, comprise Internet of Things signals collecting transmission equipment 1, water inlet 5, water pump assembly 6, delivery port 11, frequency-conversion control cabinet 7,4 places, water source arrange water inlet 5, water inlet 5 connects the water pump input of water pump assembly 6 by pipeline, water delivery side of pump connects delivery port 11 by pipeline; Delivery port 11 connects water system by pipeline; Current are 4 flow through water inlet 5, water pump assemblies 6 from water source, from delivery port 11, flow out and supply with users; Delivery port 11 is provided with signal supervisory instrument 12 and emergency starting device 13; The least favorable point 2(of water system i.e. the highest solstics) be provided with Internet of Things signals collecting transmission equipment 1, Internet of Things signals collecting transmission equipment 1 is for gathering the pressure signal of least favorable point 2, and signal is sent to frequency-conversion control cabinet 7; Frequency-conversion control cabinet 7 is according to these signal controlling water pump assembly 6 converting operations.
Internet of Things signals collecting transmission equipment 1 comprises pressure sensor 14, signal processing module 15, GPRS module 16, and pressure sensor 14 is arranged at least favorable and puts 2 places; Pressure sensor 14 connects signal processing module 15 by holding wire, and signal processing module 15 connects GPRS module 16;
The pressure signal of the least favorable point 2 of pressure sensor 14 Real-time Collection water systems is also transferred to signal processing module 15, and signal processing module 15 sends GPRS module 16 to after the signal receiving is processed; GPRS module 16 sends to frequency-conversion control cabinet 7 by Internet of Things (being GPRS wireless communication mode) in real time by signal.
Frequency-conversion control cabinet 7 comprises wireless receiving module 3, PLC controller 8, Digital PID Controller 9, the frequency converter 10 connecting successively, and frequency converter 10 is connected with water pump assembly 6 by holding wire;
The signal supervisory instrument 12 of delivery port 11 is connected with the PLC controller 8 of frequency-conversion control cabinet 7 by holding wire with emergency starting device 13;
Wireless receiving module 3 receives the signal (signal that wireless receiving module 3 receives is analog signal) that GPRS module 16 and signal supervisory instrument 12 and emergency starting device 13 send in real time, be transferred to after treatment PLC controller 8, PLC controller 8 is processed the signal of receiving (analog signal to be converted into data signal, this is prior art, do not repeat) after be transferred to Digital PID Controller 9, Digital PID Controller 9 is transferred to frequency converter 10 by automatic control instruction signal, frequency converter 10 is controlled the rotating speed of water pump assembly 6 according to instruction, realize converting operation, meet user's water demand.
As shown in Figure 2, the present invention, by the constant pressure water supply method of Internet of Things signal transmission, comprises following process:
Internet of Things signals collecting transmission equipment 1 gathers the pressure signal of least favorable point 2, after being processed, gathered pressure signal sends to the wireless receiving module 3 of frequency-conversion control cabinet 7 by Internet of Things, wireless receiving module 3 is transferred to PLC controller 8 as processing foundation after the signal receiving is processed, and frequency-conversion control cabinet 7 is controlled water pump assembly 6 speed governing operations according to result; Meanwhile, the signal supervisory instrument of delivery port 11 12 gathers pump group outlet pressure values to detect in real time the running status of water system and signal to be sent to the PLC controller 8 of frequency-conversion control cabinet 7, realizes the real-time monitoring to ductwork pressure;
When signal supervisory instrument 12 detect that Internet of Things signals collecting transmission equipment 1 breaks down or GPRS module 16 and wireless receiving module 3 between communication when unsuccessful, signal supervisory instrument 12 is transferred to the PLC controller 8 in frequency-conversion control cabinet 7 by the pressure signal of delivery port 11, PLC controller 8 is after judgement and processing, water pump assembly 6 is switched to local control model by mode of operation, realizes frequency control operation and emergency starting;
When in signal supervisory instrument 12, frequency converter 10, any one breaks down, emergency starting device 13 sends emergency starting control signal to the PLC controller 8 in frequency-conversion control cabinet 7, controls water system and continues to supply water.
Claims (6)
1. an Internet of Things signal transmits constant pressure water supply system, it is characterized in that: comprise Internet of Things signals collecting transmission equipment, water inlet, water pump assembly, delivery port, frequency-conversion control cabinet, place, water source arranges water inlet, water inlet connects the input of water pump assembly by pipeline, the output of water pump assembly connects delivery port by pipeline; Delivery port connects water system by pipeline; Current from water source, flow through water inlet, water pump assembly, flow out the water system of supplying with user from delivery port; Delivery port is provided with signal supervisory instrument and emergency starting device; The least favorable point of water system is provided with Internet of Things signals collecting transmission equipment, and Internet of Things signals collecting transmission equipment gathers the pressure signal of least favorable point, and signal is sent to frequency-conversion control cabinet; Frequency-conversion control cabinet is according to this signal controlling water pump assembly converting operation.
2. Internet of Things signal according to claim 1 transmits constant pressure water supply system, it is characterized in that: described Internet of Things signals collecting transmission equipment comprises pressure sensor, signal processing module, GPRS module, pressure sensor is arranged at described least favorable point place; Pressure sensor connects signal processing module by holding wire, and signal processing module connects GPRS module;
Pressure sensor gathers the pressure signal of least favorable point and is transferred to signal processing module, and signal processing module sends GPRS module to after the signal receiving is processed; GPRS module sends to frequency-conversion control cabinet by Internet of Things by signal.
3. Internet of Things signal according to claim 1 transmits constant pressure water supply system, it is characterized in that: described frequency-conversion control cabinet comprises wireless receiving module, PLC controller, Digital PID Controller, the frequency converter connecting successively, and frequency converter is connected with described water pump assembly by holding wire; The signal supervisory instrument of described delivery port is connected with the PLC controller of frequency-conversion control cabinet by holding wire with emergency starting device;
Wireless receiving module receives the signal that described GPRS module and signal supervisory instrument and emergency starting device send in real time, be transferred to after treatment PLC controller, PLC controller is transferred to Digital PID Controller after the signal of receiving is processed, Digital PID Controller is transferred to frequency converter by automatic control instruction signal, and frequency converter is controlled the rotating speed of described water pump assembly according to instruction.
4. a constant pressure water supply method that adopts Internet of Things signal transmission constant pressure water supply system claimed in claim 1, is characterized in that, comprises following process:
Internet of Things signals collecting transmission equipment gathers the pressure signal of least favorable point, after being processed, gathered pressure signal sends to the wireless receiving module of frequency-conversion control cabinet by Internet of Things, wireless receiving module is transferred to PLC controller as processing foundation after the signal receiving is processed, and frequency-conversion control cabinet is controlled water pump assembly speed governing operation according to result; Meanwhile, the signal supervisory instrument of delivery port gathers pump group outlet pressure value to detect in real time the running status of water system and signal to be sent to the PLC controller of frequency-conversion control cabinet, realizes the real-time monitoring to ductwork pressure.
5. constant pressure water supply method according to claim 4, it is characterized in that: when described signal supervisory instrument detect that Internet of Things signals collecting transmission equipment breaks down or GPRS module and wireless receiving module between communication when unsuccessful, signal supervisory instrument is transferred to the PLC controller in frequency-conversion control cabinet by the pressure signal of delivery port, PLC controller is after judgement and processing, water pump assembly is switched to local control model by mode of operation, realizes frequency control operation and emergency starting.
6. constant pressure water supply method according to claim 4, it is characterized in that: when when described signal supervisory instrument, frequency converter, any one breaks down, emergency starting device sends emergency starting control signal to the PLC controller in frequency-conversion control cabinet, controls water system and continues to supply water.
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Cited By (3)
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| CN104514242A (en) * | 2014-12-25 | 2015-04-15 | 苏州经贸职业技术学院 | Constant-pressure water feeding device based on internet of things |
| CN114575410A (en) * | 2022-01-25 | 2022-06-03 | 奇力士（武汉）智慧水务科技有限公司 | Intelligent current-variable voltage-variable flood-prevention mute secondary water supply system and method based on Internet of things |
| CN117189573A (en) * | 2023-09-18 | 2023-12-08 | 利欧集团浙江泵业有限公司 | Emergency starting method and device for secondary water supply variable frequency pump set system |
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| CN117189573A (en) * | 2023-09-18 | 2023-12-08 | 利欧集团浙江泵业有限公司 | Emergency starting method and device for secondary water supply variable frequency pump set system |
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Application publication date: 20140402 |