CN203870788U - Heat data acquisition device based on MBUS bus - Google Patents

Abstract

The utility model discloses a heat data acquisition device based on MBUS bus relates to thermal collection system technical field. The device comprises a wireless transmission unit for wirelessly receiving a downloaded command and uploading heat meter data acquired by a central control unit, the central control unit for calculating and processing the wireless heat meter data transmitted by an MBUS bus, and an adjustable voltage output unit for receiving the command of the central control unit and adjusting the MBUS voltage according to the command. The data acquisition device collects data of the heat meter in a centralized manner through the MBUS bus and uploads the data in a wireless manner, the data acquisition device has a data storage function, the data are not affected by the outside, and the safety and the accuracy of data transmission are improved.

Description

Heat data acquisition device based on MBUS bus

technical field

The utility model belongs to the technical field of heat collection devices, in particular to a heat data collection device based on an MBUS bus.

Background technique

A heat meter is an instrument for calculating heat. The working principle of the heat meter: install a pair of temperature sensors on the upstream and downstream pipes passing through the heat-carrying fluid, and the flowmeter is installed on the fluid inlet or return pipe (the location of the flowmeter is different, and the final measurement results are also different. ), the flowmeter sends out a pulse signal proportional to the flow rate, a pair of temperature sensors gives an analog signal indicating the temperature, and the totalizer collects the signals from the flow and temperature sensors, and uses the totalization formula to calculate the heat obtained by the heat exchange system .

At present, user heating is mostly carried out in the form of one household, one meter for data display and recording. There are two ways of manual collection of heat meter data and remote meter reading. The manual collection method has low efficiency and high cost, which is not conducive to the real-time monitoring of heat data by heating companies. Although some companies have realized the remote meter reading method, the device lacks the data transfer function, the data security becomes lower, and the data transmission and collection are easily disturbed by the external environment, resulting in inaccurate data.

Utility model content

The technical problem to be solved by the utility model is to provide a heat data acquisition device based on the MBUS bus. The data acquisition device collects the data of the heat meter through the MBUS bus and uploads it wirelessly. It has a data storage function and The data is not affected by the outside world, which improves the security and accuracy of data transmission.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a heat data acquisition device based on the MBUS bus, which is characterized in that: the device includes a command for wirelessly receiving the downlink and uploading the central control unit to collect The wireless transmission unit of the heat meter data, the central control unit used to calculate and process the wireless heat meter data transmitted through the MBUS bus, and the adjustable voltage output unit used to receive the commands of the central control unit and adjust the MBUS voltage according to the commands .

Preferably, the wireless transmission unit includes a CPU, a clock module, a communication module, a communication interface, a power supply module and a storage module, the communication interface performs two-way data communication with the CPU through the communication module, and the power supply module is respectively a CPU and a communication module Provide driving power, and the clock module provides clock for CPU.

Preferably, the wireless transmission unit is a GPRS wireless transmission unit.

Preferably, the central control unit includes a CPU, a memory, a power supply module, an MBUS interface module, a clock circuit and a serial port module, and the CPU is electrically connected to the memory, the MBUS interface module, the clock circuit and the serial port module respectively, and the power supply module is The CPU supplies power.

Preferably, the memory includes flash memory, RAM, ROM and SD card memory.

Preferably, the adjustable voltage output unit includes an MCU, a DC-DC module and a switch, and the MCU is electrically connected to the DC-DC module and the switch respectively.

The beneficial effect of adopting the above technical solution is that: the data acquisition device effectively solves the shortcomings of geographical dispersion of heat supply users and low efficiency and inaccuracy of heat data acquisition. The data acquisition device regularly reads the data of the heat meter and stores the above data, and then uploads it to the host computer for processing. The heat data is transmitted wirelessly, and the data is not affected by the outside world, which improves the security and accuracy of data transmission. , can reduce the loss of heating enterprises to a certain extent and improve economic benefits.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a schematic diagram of the wiring of the utility model with a heat meter and a server.

Detailed ways

Below in conjunction with the accompanying drawings in the utility model embodiment, the technical solution in the utility model embodiment is clearly and completely described, obviously, the described embodiment is only a part of the utility model embodiment, rather than all implementation example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here, and those skilled in the art can do so without violating the connotation of the utility model. Under the circumstances, similar promotion is done, so the utility model is not limited by the specific embodiments disclosed below.

The following will be described through specific examples.

Example

As shown in Figure 1, a heat data acquisition device based on MBUS includes a central processing unit, a central control unit and an adjustable voltage output unit. The wireless transmission unit is used for wirelessly receiving downlinked commands and uploading the heat meter data collected by the central control unit. The wireless transmission unit includes a CPU, a clock module, a communication module, a communication interface, a power supply module and a storage module, the communication interface performs two-way data communication with the CPU through the communication module, and the power supply module provides driving power for the CPU and the communication module respectively , the clock module provides a clock for the CPU. The wireless transmission unit is a GPRS wireless transmission unit.

The central control unit is used to calculate and process the wireless heat meter data transmitted through MBUS. The central control unit includes a CPU, a memory, a power supply module, an MBUS interface module, a clock circuit and a serial port module, the CPU is electrically connected to the memory, the MBUS interface module, the clock circuit and the serial port module, and the power supply module supplies power to the CPU, The memory includes flash memory, RAM, ROM and SD card memory.

The adjustable voltage output unit is used to receive commands from the central control unit and adjust the MBUS voltage according to the commands. The adjustable voltage output unit includes an MCU, a DC-DC module and a switch, and the MCU is electrically connected to the DC-DC module and the switch respectively.

As shown in Fig. 2, a connection block diagram of the utility model and peripheral devices is provided, including a heat meter, a data acquisition device and a server. The server is used to send and receive heat data reading requests to the data collector, the heat meter is used to send heat data to the data collector through the bus, and the management system is used to read data from the server and send data read requests to the server.

To sum up, the data acquisition device effectively solves the shortcomings of geographically dispersed heat supply users and low and inaccurate heat data acquisition efficiency. The data acquisition device regularly reads the data of the heat meter and stores the above data and uploads it to the host computer for processing. The data is transmitted wirelessly, and the data is not affected by the outside world, which improves the security and accuracy of data transmission. To a certain extent, reduce the loss of heating enterprises and improve economic benefits.

Claims (3)

1. the thermal data harvester based on MBUS bus, it is characterized in that: described device comprises the order passing down for wireless receiving and uploads the wireless transmission unit of the calorimeter data that central control unit collects, for calculating and process the central control unit of the wireless calorimeter data that send by MBUS bus, and for receiving the order of central control unit and adjusting the adjustable voltage output unit of MBUS voltage according to order, described wireless transmission unit comprises CPU, clock module, communication module, communication interface, power module and memory module, described communication interface is carried out bidirectional data communication by communication module and CPU, and described power module is respectively CPU, communication module provides driving power, and described clock module provides clock for CPU, and described central control unit comprises CPU, storer, power module, MBUS interface module, clock circuit and serial port module, described CPU respectively with storer, MBUS interface module, clock circuit and serial port module electrical connection, described power module is CPU power supply, described adjustable voltage output unit comprises MCU, DC-DC module and switch, MCU is electrically connected with DC-DC module and switch respectively.

2. the thermal data harvester based on MBUS bus according to claim 1, is characterized in that: described wireless transmission unit is GPRS wireless transmission unit.

3. the thermal data harvester based on MBUS bus according to claim 1, is characterized in that: described storer comprises flash memory, RAM, ROM and SD card memory.