Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a remote monitoring system for a plurality of ground source heat pumps.
The operation and maintenance timeliness is improved, the hidden danger of the unit can be found in time by monitoring the operation data at any time, and the big data integration is realized.
The purpose of the invention is realized as follows: a remote monitoring system for a plurality of ground source heat pumps comprises a computer or mobile phone terminal device, a cloud touch screen, a local touch screen based on Internet communication and a plurality of vortex type ground source heat pump units; each ground source heat pump unit is provided with a PLC (programmable logic controller); wherein,
the computer or mobile phone terminal equipment is in communication connection with the cloud touch screen through the Internet;
the cloud touch screen is in communication connection with the local touch screen through the Internet;
one ground source heat pump unit is arranged in the plurality of ground source heat pump units and serves as a host machine, and the other ground source heat pump units serve as slave machines;
the plurality of slave machines are respectively connected with a buried pipe water pump and a user side water pump;
all PLC controllers are connected together through signal lines to form a PLAN local area network, so that data communication is realized;
the PLC of the host is in communication connection with the local touch screen by using a Modbus communication protocol; all the PLC controllers of the slave machines are in communication connection with the PLC controller of the host machine by using own communication protocols;
all the buried pipe water pumps and all the user side water pumps are in communication connection with the PLC controllers of the slave machines which are correspondingly connected, and the start and stop of the buried pipe water pumps and all the user side water pumps are remotely controlled by a computer or mobile phone terminal equipment;
all contactors or frequency converters of the buried pipe water pumps and all contactors or frequency converters of the user side water pumps are in communication connection with the PLC controllers of the slave machines correspondingly connected, and the operating frequency is set remotely by using a computer or mobile phone terminal device;
the multiple ground source heat pump units can be set into an independent operation mode and also can be set into a remote monitoring operation mode;
when the ground source heat pump units are set to the remote monitoring operation mode, all operation instructions are remotely set by using a computer or mobile phone terminal equipment, and all operation parameters are read by using the computer or mobile phone terminal equipment through the internet.
In the remote monitoring system for the multiple ground source heat pumps, the local touch screen remotely operates at most sixteen ground source heat pump units, at most three buried pipe water pumps and frequency converters thereof, and at most three user side water pumps and frequency converters thereof through a human-computer interface.
In the remote monitoring system for the multiple ground source heat pumps, the multiple PLC controllers are connected together by the shielded twisted pair to form a local area network; and the PLC of the host is connected with the local touch screen through an RS485 communication line.
The remote monitoring system for the multiple ground source heat pumps comprises the operation instructions, wherein the operation instructions comprise monitoring on-off, working mode setting, hot water function setting, alarm parameter setting, water pump frequency conversion parameter setting, compressor quantity setting, alarm manual resetting, water pump operation, refrigeration temperature control setting, heating temperature control setting, compressor electric heating coil enabling, refrigeration user side temperature difference, heating user side temperature difference and soft starting.
In the remote monitoring system for multiple ground source heat pumps, the operation parameters include the unit online states of all online units, the unit operation states, the unit alarm states, the required number of compressors, the operation number of compressors, the accumulated unit operation time, the accumulated unit alarm times, the user side supply and return water temperature, the ground source side supply and return water temperature, the hot water temperature, the current compressor operation state, the suction and exhaust pressure, the exhaust temperature, the electronic expansion valve and the alarm code.
The remote monitoring system for the multiple ground source heat pumps can be managed by using professionals in an operation center, and can solve the problems that field professionals are lack and the adjustment and control professionals are not sufficient. The unattended operation of the local machine room can be realized, and the operation and maintenance time effectiveness is improved. Through long-range, the ground source heat pump set and the relevant equipment of a plurality of computer rooms of single operatable have saved relevant labour cost greatly to through monitoring operation data at any time, can in time discover the unit hidden danger, and can combine the operation quantity of many ground source heat pump set of the data adjustment of end operation, the operation quantity of compressor, the flow of the converter adjustment user side water pump of water pump and the flow of buried pipe water pump, realize big data integration. The remote monitoring system of the invention has the advantages of low price, convenient operation, safety and reliability.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1, the remote monitoring system for multiple ground source heat pumps of the present invention includes a computer or mobile phone terminal device 7, a cloud touch screen 6, a local touch screen 5 based on internet communication, and multiple vortex ground source heat pump units; wherein,
the computer or mobile phone terminal device 7 is in communication connection with the cloud touch screen 6 through the internet;
the cloud touch screen 6 is in communication connection with the local touch screen 5 through the internet;
the local touch screen 5 is connected to the internet using a router;
in the embodiment, the local touch screen 5 remotely operates sixteen ground source heat pump units 201 to 216 at most, three ground buried pipe water pumps 402 to 404 and frequency converters thereof at most, and three user side water pumps 302 to 304 and frequency converters thereof at most through a human-computer interface; sixteen ground source heat pump units 201-216 are provided with PLC controllers 101-116; one ground source heat pump unit is set as a master 201, the rest fifteen ground source heat pump units are slaves 202-216,
the three slave machines 202-204 are connected with three buried pipe water pumps 402-404 in a one-to-one corresponding mode, and the three slave machines 202-204 are also connected with three user side water pumps 302-304 in a one-to-one corresponding mode;
sixteen PLC controllers 101-116 are connected together through a shielded twisted pair 3 to form a PLAN local area network, so that data communication is realized;
sixteen PLC controllers 101-116 are respectively provided with different addresses, wherein the address of the PLC controller 101 of the host 201 is set to be 1, and the addresses of the PLC controllers 102-116 of the fifteen slaves 202-216 are sequentially set to be 2-16; the PLC 101 of the host 201 uses a Modbus communication protocol and is in communication connection with the local touch screen 5 through an RS485 communication line 4; PLC controllers 102 to 116 of fifteen slaves 202 to 216 are respectively in communication connection with a PLC controller 101 of a host 201 with an address of 1 by using own communication protocols;
the three buried pipe water pumps 402-404 and the three user side water pumps 302-304 are in communication connection with PLC controllers 102-104 (addresses are 2-4) of the three slave machines 202-204 which are correspondingly connected, and the start and stop of the three buried pipe water pumps are remotely controlled by a computer or a mobile phone terminal device 7;
contactors or frequency converters of the three buried pipe water pumps 402-404 and contactors or frequency converters of the three user side water pumps 302-304 are in communication connection with PLC controllers 102-104 (addresses 2-4) of the three slave machines 202-204 which are correspondingly connected, and operating frequency is remotely set by utilizing a computer or a mobile phone terminal device 7;
the sixteen ground source heat pump units 201-216 can be set to be in an independent operation mode and can also be set to be in a remote monitoring operation mode;
when the sixteen ground source heat pump units 201-216 are set to a remote monitoring operation mode, all operation instructions are set remotely by using a computer or mobile phone terminal device; the operation instructions comprise functions of monitoring on-off, working mode setting, hot water function setting, alarm parameter setting, water pump frequency conversion parameter setting, compressor quantity setting, alarm manual resetting, water pump operation, refrigeration temperature control setting, heating temperature control setting, compressor electric heating coil enabling, refrigeration user side temperature difference, heating user side temperature difference, soft starting and the like; all the operating parameters of the sixteen ground source heat pump units 201-216 are read through the internet by using a computer or mobile phone terminal equipment; the operation parameters comprise the unit online states, the unit operation states, the unit alarm states, the compressor demand number, the compressor operation number, the unit accumulated operation time, the unit accumulated alarm times, the user side water supply and return temperature, the ground source side water supply and return temperature, the hot water temperature, the current compressor operation state, the suction and exhaust pressure, the exhaust temperature, the electronic expansion valve, the alarm codes and other operation parameters of all online units.
The working process of the remote monitoring system for the plurality of ground source heat pumps is as follows:
firstly, a remote monitoring operation mode is set on each ground source heat pump unit, and the machine is started locally.
When the remote operator operates, the remote monitoring program is required to be opened and then connected with the Internet, and the remote operator logs in according to the user name and the login password provided by the manager.
After logging in, the user computer can have a cloud screen which is completely consistent with the local touch screen 5.
The user can directly log in the cloud screen on the cloud screen of the user according to the user name and the login password of different operation authorities distributed by the administrator. Different user names have different operation authorities. After login is successful, the contents in the authority can be operated. The operator can select the content to be operated, enter the current operation content interface and carry out remote operation. Such as: important operation data of each ground source heat pump unit are recorded and analyzed; setting a working mode; remote 'on/off'; setting a temperature control temperature; remote 'switching on and off of a water pump'; remotely setting the working frequency of the water pump; and remotely adjusting the energy level of the ground source heat pump unit. If the monitoring on-off is selected, the operation instruction of remotely on-off can be arbitrarily carried out on the sixteen ground source heat pump units. If the 'working mode' is selected, different working mode instructions such as 'cooling', 'heating' or 'hot water' can be issued to the sixteen ground source heat pump units remotely. If the 'water pump frequency conversion' is selected, the user side water pump or the buried pipe water pump can be subjected to remote frequency conversion according to the operation number of the currently set compressors and the number of the actually operated compressors of each ground source heat pump unit and by combining the actual operation condition of the tail end. If the 'operation data' is selected, various important operation data of sixteen ground source heat pump units can be observed at most, such as the operation number (energy level) of a compressor of each ground source heat pump unit, the suction and exhaust pressure of the compressor, the exhaust temperature of the compressor, the supply and return water temperature of a user side, the supply and return water temperature of a ground source side, alarm codes, accumulated operation time and the like.
The operation data of the fifteen slave machines 202-216 are transmitted to the PLC 101 of the host 201 through a PLAN local area network, then transmitted to the local touch screen 5 through a Modbus communication protocol by the PLC 101 of the host 201, and finally transmitted to the cloud touch screen 6 in the user computer through the Internet by the local touch screen 5.
When a user operates, if the slave 202 is started, an operation instruction is firstly sent to the 'cloud screen' in the computer, then the instruction in the 'cloud screen' is sent to the local touch screen 5 through the internet, the local touch screen 5 sends the instruction to the PLC controller 101 of the host 201, the PLC controller 101 of the host 201 sends the instruction to the PLC controller 102 of the slave 202 through the PLAN local area network, and the slave 202 can be started.
According to the remote monitoring system of the multiple ground source heat pumps, the operation parameters and the alarm parameters of each unit are collected to the PLC of the host through the local area network communication among the units, the data are transmitted to the user computer through the local touch screen connected with the RS485 through the Internet, and a user can remotely read all the operation data and the alarm data of each unit; otherwise, each operation instruction sent by the user through the computer can be transmitted to the local touch screen through the network, then the local touch screen communicates the remote operation instruction to the PLC of the host computer, and then the PLC of the host computer transmits the remote operation instruction to the networked slave computers through the local area network, so that the task of remote operation is realized.
The working principle of the remote monitoring system for the plurality of ground source heat pumps is as follows:
1) a PLC (programmable logic controller) of the ground source heat pump unit is used as an upper computer, and the other upper computer does not need to be lapped.
2) The data acquisition module of the ground source heat pump unit is utilized, and no additional data acquisition module is needed.
3) The communication module of the local touch screen capable of communicating with the Internet is utilized, and the communication module does not need to be additionally lapped.
4) The local touch screen manufacturer which can communicate with the Internet is used for own server, and the server does not need to be additionally lapped.
5) By utilizing the PLAN local area network communication among the plurality of ground source heat pump units, important operation data of the ground source heat pump units to be monitored are collected to the PLC of the host connected with the local touch screen, and no additional human-computer interface or equipment is needed.
6) The local area network communication among the ground source heat pump units is utilized to send important instructions to be operated to the PLC of the host machine connected with the local touch screen through the Internet, and then the PLC of the host machine sends related control instructions to the PLC of the slave machine communicated with the PLC of the host machine, so that additional human-computer interfaces and equipment are not needed.
The remote monitoring system of the multiple ground source heat pumps utilizes the local touch screen capable of communicating with the Internet and combines the local area network communication technology of the multiple ground source heat pumps, can be conveniently lapped with the remote monitoring system, has low price (the whole system does not exceed 5000 yuan), is safe and reliable, and does not need to set complex network parameters. The lap joint of the remote monitoring platform does not need professional computer knowledge.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.