CN212433958U - Heat supply data transmission unit based on NB-IOT - Google Patents

Abstract

The utility model relates to a heat supply data transmission unit based on NB-IOT belongs to heat supply thing networking application, especially relates to the technique of long-range heat supply valve control. Most valve products in the market adopt a wired RS485 or CAN bus mode, manual control is needed for adjusting the opening of the valve, and the problems that the valve CAN not be remotely monitored and the like CAN not be realized. The utility model discloses constitute by power voltage stabilizing circuit, data storage, human-computer interface, central processing unit and NB module. The central processing unit is connected with the NB-IOT network base station through the NB-IOT module, data of each valve and data of the heat meter are transmitted to the monitoring system, meanwhile, the monitoring platform can pass through the NB-IOT network according to actual heat supply requirements until the opening degree adjustment target of each valve is reached, and when the platform does not send out an instruction, the data transmission unit can be in an automatic adjustment state. The utility model discloses the effectual regulation efficiency who improves the heat supply temperature can solve the extensive management of heat supply enterprise, has improved whole heating system's intelligent management greatly.

Description

Heat supply data transmission unit based on NB-IOT

Technical Field

The utility model relates to a heat supply data transmission unit based on NB-IOT belongs to thing networking application, especially relates to the technique of long-range heat supply valve control.

Background

Most valve products in the market adopt a wired RS485 or CAN bus mode, manual control is needed for adjusting the opening of the valve, remote monitoring of the valve cannot be realized, and even if a small number of factory valves have a remote control function, 2G or 4G networks are used, so that waste of engineering cost and use cost is caused. Based on the problems, the NB-IOT data transmission unit is used for enabling the valve to have a remote monitoring function, heating staff do not need to manually adjust the opening of the valve on site, equipment can automatically adjust the opening of the valve according to a received instruction sent by a server, and meanwhile, data of each valve are periodically collected and reported to the server. The device can carry 6 valves and a building heat meter at most simultaneously, and one data transmission device can be used on one floor in the aspect of hydraulic balance adjustment of a user end, so that the engineering cost is greatly saved.

Therefore, there is a need for intelligent and information-based modification in both the operation mode of the heating system and the management mode of heating.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes above-mentioned current heat supply problem technical scheme not enough provides a heat supply data transmission unit based on NB-IOT. The utility model discloses constitute by power voltage stabilizing circuit, data storage, human-computer interface, central processing unit and NB module.

The central processing unit collects all valve data and heat meter data through an RS485 or CAN bus in real time, the central processing unit is connected with an NB-IOT network base station through an NB-IOT module, the network is registered through an SIM card, all the valve data and the heat meter data are transmitted into a monitoring system through an NB-IOT module ML5535, the water return temperature and the valve opening data of all the valves CAN be monitored in real time, and meanwhile, the monitoring platform CAN issue valve adjusting instructions to a data transmission unit through the NB-IOT network according to actual heat supply requirements until the valve opening adjusting targets are reached. When the platform does not issue the instruction, the data transmission unit can be in an automatic adjustment state until the loaded valve is adjusted to an automatic adjustment target issued by the platform. The utility model discloses the effectual regulation efficiency who improves the heat supply temperature can solve the extensive management of heat supply enterprise, has improved whole heating system's intelligent management greatly.

The technical scheme of the utility model as follows:

a heat supply data transmission unit based on NB-IOT comprises a monitoring system and a data transmission unit; the monitoring system is respectively connected with a plurality of parallel data transmission units through an NB-IOT network; the monitoring system is used for receiving the data transmission units to acquire the data of each valve with load and the data of the heat meter, monitoring and controlling the data transmission units and independently monitoring and controlling a plurality of parallel data transmission units;

the heat supply data transmission unit based on the NB-IOT comprises a data transmission unit control panel, a shell and an antenna;

the data transmission unit control panel comprises a power supply control unit, a storage unit, a main control unit, an RS485 communication unit, a CAN communication unit, a human-computer interface unit and a wireless transmission unit; the shell is a stamped metal shell and is provided with a wiring terminal, a dial switch, an SIM card and an antenna interface; the antenna is fixed outside the shell and is in threaded connection, and an antenna patch cord is arranged between the control panel and the shell.

The main control unit is respectively connected with the NB-IOT module, the RS485 communication unit, the storage unit, the CAN communication unit, the human-computer interface unit, the power supply control unit and the wireless data transmission unit; the wireless data transmission unit comprises an NB-IOT module and an SIM card; the power supply control unit is connected with the main control unit and is used for supplying power to the RS485 communication unit, the CAN communication unit, the human-computer interface unit, the storage unit and the wireless transmission unit; and the RS485 bus or the CAN bus is connected to the RS485 communication unit or the CAN communication unit through a wiring terminal. The memory unit adopts a nonvolatile memory chip, and the erasing frequency reaches 100 ten thousand times; the human-computer interface adopts an LED lamp to indicate the state of the data transmission unit; the RS485 communication unit is provided with 2 RS485 interfaces, 1 path is a master station and is used for being connected with the valve, and 1 path is a slave/master station and is used for configuring the data transmission unit and acquiring heat meter data.

Furthermore, a heat supply company can adjust the return water temperature and the valve opening of the on-load valve of the data transmission unit through the monitoring platform and can monitor the return water temperature of each valve and the current valve data;

furthermore, the storage unit is used for storing the configuration data of each valve with load and the configuration data of the RS485 communication data in an analytic mode in real time, and the configuration data are not lost after power failure;

preferably, the human-computer interface unit adopts an LED lamp and a dial switch mode, the lamp can indicate the current state of the data transmission unit, and the dial switch can set the working mode of the data transmission unit;

preferably, the main control unit is a microprocessor of the STM32F 103;

preferably, the RS485 communication unit is an RS485 transceiver of ISL 3152;

preferably, the CAN communication unit is a transceiver of TJA 1050;

preferably, the storage unit is an FM25V05 memory;

preferably, the wireless transmission unit is an ML5535 module.

The utility model discloses following beneficial effect has for prior art:

1. the utility model provides a heat supply data transmission unit based on NB-IOT, the RS485 communication unit or the CAN communication unit is controlled by the main control unit to acquire information such as the water return temperature, the opening degree and the fault code of the loaded valve and information such as heat meter data in real time, the main control unit establishes connection between the acquired data and the NB-IOT network base station through the NB-IOT module, the backwater temperature data, the valve opening data, the fault code data and the heat meter data are transmitted to a monitoring system through an NB-IOT module ML5535 through an SIM card registration network, the monitoring system issues the heat supply control strategy selected by the heat supply user to each data transmission unit through the NB-IOT network, the data transmission unit controls the opening of each valve through the received control strategy, adjusts the return water temperature of the unit return water pipe or the user end return water pipe, and uploads the adjustment data to the monitoring system through the NB-IOT network.

2. The utility model effectively improves the regulation efficiency of the heating temperature, can solve the extensive management of heating enterprises, and greatly improves the intelligent management of the whole heating system; the control unit adopts an STM32F103 high-performance microprocessor and a low-power consumption NB-IOT module, so that the power consumption is saved, the anti-interference performance is strong, and the long-term stable operation of the equipment can be ensured; the RS485 communication data analysis configurable function can be compatible with most valves in the market adopting an RS485 bus MODBUS-RTU protocol; an NB-IOT wireless communication mode is adopted, so that the on-site is not required to be unseen, and the construction cost is reduced; the intelligent control system is provided with an RS485 mode and a CAN module, and CAN switch the working mode of the data transmission unit through a dial switch.

3. The utility model has two working modes of automatic adjustment and remote control, and can be switched by sending instructions through the monitoring system; similarly, the power supply can adopt alternating current 24V or direct current 24V input, and has the function of grounding protection; the data transmission unit can automatically continue to operate according to the state before power failure after the data transmission unit is powered down and powered up again; the work that traditional heat supply engineering personnel arrived on-the-spot manual regulation valve has been reduced, adopts remote control, has practiced thrift debugging cost and cycle.

4. The utility model can precisely adjust each household valve or unit valve by macroscopically monitoring the temperature of the whole heat supply area through the monitoring system, thereby improving the heat supply precision and saving the energy; the monitoring system analyzes the heat supply strategy and issues an effective adjusting command, so that the intelligent management of heat supply users is improved; the installation is simple and convenient, and power supply or battery power supply can be adopted, so that the construction cost is reduced.

Drawings

FIG. 1 is a block diagram of an NB-IOT based heating data transfer unit system;

fig. 2 is a diagram of the internal structure of the data transmission unit.

Detailed Description

The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to fig. 2, and a NB-IOT based heating data transmission unit of the present embodiment includes a monitoring system and a data transmission unit; the monitoring system is respectively connected with a plurality of parallel data transmission units through an NB-IOT network; the monitoring system is used for receiving the data of each valve and the data of the heat meter acquired by the data transmission unit, monitoring and controlling the valves and the heat meters carried by the data transmission unit, and independently monitoring and controlling a plurality of parallel data transmission units;

the second embodiment is as follows: the present embodiment is described with reference to fig. 1-2, and the NB-IOT based heating data transmission unit of the present embodiment includes a data transmission unit control board, a housing and an antenna; the data transmission unit control panel comprises a power supply control unit, a storage unit, a main control unit, an RS485 communication unit, a CAN communication unit, a human-computer interface unit and a wireless data transmission unit; the shell is a stamped metal shell and is provided with a wiring terminal, a dial switch, an SIM card and an antenna interface; the antenna is fixed outside the shell and is in threaded connection, and an antenna patch cord is arranged between the control panel and the shell.

The third concrete implementation mode: the present embodiment is described with reference to fig. 1-2, and in the heat supply data transmission unit based on NB-IOT of the present embodiment, the main control unit is respectively connected to the NB-IOT module, the RS485 communication unit, the storage unit, the CAN communication unit, the human-computer interface unit, the power control unit, and the wireless data transmission unit; the wireless transmission unit comprises an NB-IOT module and an SIM card; the power supply control unit is connected with the main control unit and is used for supplying power to the RS485 communication unit, the CAN communication unit, the human-computer interface unit, the storage unit and the wireless data transmission unit;

and the RS485 bus or the CAN bus is connected to the RS485 communication unit or the CAN communication unit through a wiring terminal. The memory unit adopts a nonvolatile memory chip, and the erasing frequency reaches 100 ten thousand times; the human-computer interface adopts an LED lamp to indicate the state of the data transmission unit; the RS485 communication unit is provided with 2 RS485 interfaces, 1 path is a master station and is used for being connected with the valve, and 1 path is a slave/master station and is used for configuring the data transmission unit and acquiring heat meter data.

The fourth concrete implementation mode: in the embodiment, which is described with reference to fig. 1-2, a heating company can adjust the return water temperature and the valve opening of the loaded valve of the data transmission unit through the monitoring platform, and can monitor the return water temperature of each valve and the current valve data.

The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 to fig. 2, and the NB-IOT based heat supply data transmission unit of the present embodiment is configured to store configuration data of each valve and analysis mode configuration data of RS485 communication data in real time, where the configuration data is not lost after power failure.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims (7)

1. The utility model provides a heat supply data transmission unit based on NB-IOT which characterized in that: the data transmission unit is used as a control core; the data transmission unit comprises a main control unit, and an RS485 communication unit, a storage unit, a CAN communication unit, a human-computer interface, a power supply control unit and a wireless data transmission unit which are respectively connected with the main control unit.

2. A NB-IOT based heating data transfer unit in accordance with claim 1, further comprising: the wireless data transmission unit is an ML5535 module, and comprises an NB-IOT module and a SIM card.

3. A NB-IOT based heating data transfer unit in accordance with claim 1, further comprising: the main control unit is a microprocessor of the STM32F 103.

4. A NB-IOT based heating data transfer unit in accordance with claim 1, further comprising: and the power supply control unit is connected with the main control unit and is used for supplying power to the RS485 communication unit, the CAN communication unit, the human-computer interface unit, the storage unit and the wireless data transmission unit.

5. A NB-IOT based heating data transfer unit in accordance with claim 1, further comprising: the storage unit adopts a nonvolatile storage chip FM25V05 memory, and the human-computer interface adopts an LED lamp.

6. A NB-IOT based heating data transfer unit in accordance with claim 1, further comprising: the data transmission unit establishes a connection with the monitoring system through a network, and the monitoring system is connected with a cloud platform through the network.

7. A NB-IOT based heating data transmission unit according to claim 4, characterised in that: the RS485 communication unit is an RS485 transceiver of ISL3152, the CAN communication unit is a transceiver of TJA1050, and the RS485 bus or the CAN bus is connected to the RS485 communication unit or the CAN communication unit through a wiring terminal.

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