CN215341392U - Dual-power supply data acquisition and monitoring terminal unit - Google Patents
Dual-power supply data acquisition and monitoring terminal unit Download PDFInfo
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- CN215341392U CN215341392U CN202121469959.1U CN202121469959U CN215341392U CN 215341392 U CN215341392 U CN 215341392U CN 202121469959 U CN202121469959 U CN 202121469959U CN 215341392 U CN215341392 U CN 215341392U
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Abstract
The utility model discloses a dual-power supply data acquisition and monitoring terminal unit, which comprises a main control module, an ACDC conversion module, a DCDC conversion module, a power supply detection module and a change-over switch; the input end of the DCDC conversion module is connected with a battery, the output end of the DCDC conversion module is connected with the first input end of the change-over switch, and the DCDC conversion module is used for converting the voltage of the battery into the voltage used by the main control module; the input end of the ACDC conversion module is connected with external alternating current, the output end of the ACDC conversion module is respectively connected with the second input end of the change-over switch and the input end of the power supply detection module, and the ACDC conversion module is used for converting the external alternating current into voltage for the main control module to use. The utility model provides a dual-power-supply data acquisition and monitoring terminal unit which can be automatically switched into a battery working mode and has the function of warning in time, is convenient for maintenance personnel to quickly find problems and can quickly repair and reduce loss.
Description
Technical Field
The utility model relates to a dual-power-supply data acquisition and monitoring terminal unit.
Background
Currently, in the field of natural gas monitoring, data acquisition and monitoring terminal units are mostly used for real-time monitoring and alarming and remote uploading of data to natural gas. When external power supply breaks down, the data acquisition and monitoring terminal unit can appear breaking down or the unusual situation of communication, though can provide stand-by power by the built-in battery of terminal unit, but battery capacity is limited, and terminal unit's consumption is great, and the battery can only maintain very short operating time, and monitoring personnel also can not in time know whether external power supply breaks down, and most equipment fixing's position is more remote, relies on artifical on the on-the-spot investigation, wastes time and energy and inefficiency.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a dual-power-supply data acquisition and monitoring terminal unit which can be automatically switched into a battery working mode and has the function of warning in time, is convenient for maintenance personnel to quickly find the problem and can repair and reduce the loss as soon as possible.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a dual-power supply data acquisition and monitoring terminal unit comprises a main control module, an ACDC conversion module, a DCDC conversion module, a power supply detection module and a change-over switch;
the input end of the DCDC conversion module is connected with a battery, the output end of the DCDC conversion module is connected with the first input end of the change-over switch, and the DCDC conversion module is used for converting the voltage of the battery into the voltage used by the main control module;
the input end of the ACDC conversion module is connected with external alternating current, the output end of the ACDC conversion module is respectively connected with the second input end of the change-over switch and the input end of the power supply detection module, and the ACDC conversion module is used for converting the external alternating current into voltage used by the main control module;
the output end of the power supply detection module is respectively connected with the control end of the selector switch and the power port of the main control module, and the power supply detection module is used for detecting whether external alternating current is disconnected;
when the external alternating current is not disconnected, the ACDC conversion module supplies power to the main control module through the change-over switch, and the main control module collects and uploads data in real time;
when the external alternating current is disconnected, the DCDC conversion module supplies power to the main control module through the selector switch, and the main control module collects and uploads data at regular time.
The ACDC conversion module comprises an ACDC conversion module, an ACDC conversion module and an anti-surge module, wherein the input end of the ACDC conversion module is connected with the input end of the ACDC conversion module, and the input end of the ACDC conversion module is connected with the input end of the ACDC conversion module.
Further, the main control module comprises an MCU module, and a flow meter acquisition module, a valve control module, a gas leakage alarm module and a communication module which are connected with an I/O port of the MCU module;
the flow meter acquisition module is used for acquiring the flow of the natural gas detected by the flow meter;
the valve control module is used for controlling the on-off of the natural gas valve;
the gas leakage alarm module is used for alarming gas leakage;
and the communication module is used for the MCU module and the data monitoring system to carry out data transmission.
By adopting the technical scheme, the utility model adopts a double power supply mode of external power supply and battery power supply, and when external alternating current is normal, the equipment is in a state of acquiring data in real time and uploading data. When external power supply is disconnected, the equipment automatically starts the battery to supply power, and simultaneously, the equipment automatically switches into a battery power supply acquisition mode, and data are acquired and uploaded at fixed time instead, so that power consumption during data acquisition and uploading is reduced, the service time of the battery is prolonged, and maintenance personnel have enough time to detect and maintain. When the external power supply is recovered, the equipment is automatically switched into an external power supply mode, the real-time uploading state is recovered, the working efficiency is improved, and a plan mechanism during emergency power-off is added.
Drawings
FIG. 1 is a schematic block diagram of a dual power supply data acquisition and monitoring terminal unit of the present invention;
FIG. 2 is a functional block diagram of a master control module of the present invention;
fig. 3 is a schematic diagram of the operation of the dual power supply data acquisition and monitoring terminal unit according to the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 3, the present embodiment provides a dual power supply data acquisition and monitoring terminal unit, which includes a main control module, an ACDC conversion module, a DCDC conversion module, a power supply detection module, and a switch. When 220V external alternating current is supplied, the power supply detection module detects that the 220V external alternating current is normally supplied, 4V direct current voltage is output after the power supply detection module is converted and isolated by the ACDC conversion module, and the power supply detection module directly supplies power to the main control module through the change-over switch. When the 220V external alternating current is powered off, the power supply detection module detects that the 220V external alternating current is disconnected, the control change-over switch is automatically switched to a battery power supply mode, and the battery outputs 4V direct current voltage through the DCDC conversion module to supply power to the main control module. Therefore, the MCU and the circuit in the main control module can continue to work, upload data are collected at regular time and are alarmed immediately and reported to the data monitoring system of the upper computer remotely, and the data monitoring system warns monitoring personnel to go to inspect the external power supply on site in time according to uploaded data signals. When the external power supply is recovered to be normal, the switch is automatically switched from the battery power supply mode to the external power supply mode, and the data uploaded to the data monitoring system of the upper computer are collected in real time.
As shown in fig. 1, in this embodiment, a specific connection relationship between the modules is provided, an input end of the DCDC conversion module is connected to the battery, an output end of the DCDC conversion module is connected to a first input end of the switch, and the DCDC conversion module is configured to convert a voltage of the battery into a voltage for the main control module;
the input end of the ACDC conversion module is connected with external alternating current, the output end of the ACDC conversion module is respectively connected with the second input end of the change-over switch and the input end of the power supply detection module, and the ACDC conversion module is used for converting the external alternating current into voltage used by the main control module;
the output end of the power supply detection module is respectively connected with the control end of the change-over switch and the power port of the main control module, and the power supply detection module is used for detecting whether external alternating current is disconnected;
when the external alternating current is not disconnected, the ACDC conversion module supplies power to the main control module through the selector switch, and the main control module collects and uploads data in real time;
when external alternating current is disconnected, the DCDC conversion module supplies power to the main control module through the change-over switch, the main control module collects and uploads data at regular time, power consumption during collection and uploading of data is reduced, and uploading at regular time is changed, so that battery power supply is more durable.
As shown in fig. 1, in order to prevent circuit damage caused by lightning strike, the present embodiment further adds an anti-surge module, an input end of the anti-surge module is connected to an external alternating current, and an output end of the anti-surge module is connected to an input end of the ACDC conversion module.
As shown in fig. 2, the main control module includes an MCU module, and a flow meter acquisition module, a valve control module, a gas leakage alarm module and a communication module connected to an I/O port of the MCU module;
the flow meter acquisition module is used for acquiring the flow of the natural gas detected by the flow meter;
the valve control module is used for controlling the on-off of the natural gas valve;
the gas leakage alarm module is used for alarming gas leakage;
and the communication module is used for the MCU module and the data monitoring system to carry out data transmission.
The technical problems, technical solutions and advantages of the present invention have been described in detail with reference to the above embodiments, and it should be understood that the above embodiments are merely exemplary and not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides a dual supply power data acquisition and monitor terminal unit which characterized in that: the system comprises a main control module, an ACDC conversion module, a DCDC conversion module, a power supply detection module and a change-over switch;
the input end of the DCDC conversion module is connected with a battery, the output end of the DCDC conversion module is connected with the first input end of the change-over switch, and the DCDC conversion module is used for converting the voltage of the battery into the voltage used by the main control module;
the input end of the ACDC conversion module is connected with external alternating current, the output end of the ACDC conversion module is respectively connected with the second input end of the change-over switch and the input end of the power supply detection module, and the ACDC conversion module is used for converting the external alternating current into voltage used by the main control module;
the output end of the power supply detection module is respectively connected with the control end of the selector switch and the power port of the main control module, and the power supply detection module is used for detecting whether external alternating current is disconnected;
when the external alternating current is not disconnected, the ACDC conversion module supplies power to the main control module through the change-over switch, and the main control module collects and uploads data in real time;
when the external alternating current is disconnected, the DCDC conversion module supplies power to the main control module through the selector switch, and the main control module collects and uploads data at regular time.
2. The dual power supply data acquisition and monitoring terminal unit of claim 1, wherein: the ACDC conversion module is characterized by further comprising an anti-surge module, wherein the input end of the anti-surge module is connected with external alternating current, and the output end of the anti-surge module is connected with the input end of the ACDC conversion module.
3. The dual power supply data acquisition and monitoring terminal unit of claim 1, wherein: the main control module comprises an MCU module, and a flow meter acquisition module, a valve control module, a gas leakage alarm module and a communication module which are connected with an I/O port of the MCU module;
the flow meter acquisition module is used for acquiring the flow of the natural gas detected by the flow meter;
the valve control module is used for controlling the on-off of the natural gas valve;
the gas leakage alarm module is used for alarming gas leakage;
and the communication module is used for the MCU module and the data monitoring system to carry out data transmission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121469959.1U CN215341392U (en) | 2021-06-30 | 2021-06-30 | Dual-power supply data acquisition and monitoring terminal unit |
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| CN202121469959.1U CN215341392U (en) | 2021-06-30 | 2021-06-30 | Dual-power supply data acquisition and monitoring terminal unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115967160A (en) * | 2022-11-21 | 2023-04-14 | 江苏枫霜信息科技有限公司 | Dual-power input data acquisition terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115967160A (en) * | 2022-11-21 | 2023-04-14 | 江苏枫霜信息科技有限公司 | Dual-power input data acquisition terminal |
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