CN114825580A - Gas station's monitor platform power protection device - Google Patents
Gas station's monitor platform power protection device Download PDFInfo
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- CN114825580A CN114825580A CN202110127127.XA CN202110127127A CN114825580A CN 114825580 A CN114825580 A CN 114825580A CN 202110127127 A CN202110127127 A CN 202110127127A CN 114825580 A CN114825580 A CN 114825580A
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- power supply
- power
- control module
- module
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
Abstract
The invention relates to a power supply protection device of a gas station monitoring platform, which is provided with a signal acquisition unit, a signal amplification unit, a main control unit and a communication module; the signal acquisition unit is equipped with the input and is connected with nozzle status signal output and gather nozzle status signal in real time to divide into two the nozzle status signal: one path of signal is connected with the oiling machine mainboard to provide a signal which is acquired in real time and is of the same type as a refueling gun state signal sent by a refueling gun for the oiling machine mainboard, so that the existing oiling machine is not required to be changed, and the adaptability is strong; meanwhile, after the other path of signal is input to the signal amplification unit, the state signal of the oil gun is converted into a level signal to be input to the main control unit, so that interference is eliminated, and reliability is improved.
Description
Technical Field
The invention relates to the technical field of oil gas recovery monitoring of a gas station, in particular to a power supply protection device of a gas station monitoring platform.
Background
The monitoring system comprises a field sensor, an acquisition controller and an in-station monitoring platform (hereinafter referred to as a monitoring platform). The monitoring platform comprises a general industrial personal computer and a software system, has the functions of displaying, storing, transmitting and the like for various parameters, tables or graphs of the running state of the oil gas recovery system, and finally realizes the operation of uploading data to the information center in real time or at regular intervals.
Under normal conditions, a monitoring platform normally works by depending on commercial power, and a monitoring platform host (hereinafter referred to as a platform host) needs to receive, store and transmit refueling data of a refueling gun and environmental data such as gas-liquid ratio, pressure, concentration and the like in real time and simultaneously needs to upload related information to an information center. However, objective factors such as unstable regional power grid or direct power failure of the platform host without shutdown easily cause the platform host to store and transmit related data in time, and also may cause damage to a corresponding chip of the platform host, and even burn the platform host in a serious case, resulting in permanent loss of related data information of the gas station and inestimable loss. In order to avoid the above problems, a power protection device for a gas station monitoring platform is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a power supply protection device for a power supply and gas station monitoring platform, which can avoid the gas station monitoring platform.
In order to achieve the purpose, the invention discloses a power supply protection device of a gas station monitoring platform, which is characterized in that: the intelligent power supply comprises a main control module, a power supply uninterrupted module, a circuit management and control module, a communication module and a standby power supply; the communication module is connected between the main control module and the host platform and is used for transmitting information and instructions between the main control module and the platform host; the power supply uninterrupted module is connected with a common power supply and a standby power supply, when the common power supply and the standby power supply are not input, the power supply uninterrupted module does not have working power supply output, and when any power supply of the common power supply and the standby power supply is input, the power supply uninterrupted module has working power supply output; the circuit management and control module is connected between the output end of the power supply uninterrupted module and the output end of a main power supply, and the output end of the main power supply is used as the power supply output end of the host platform; the main control module output with circuit management and control module connects, main control module includes power monitoring unit, power state timing unit and power state data processing unit, power monitoring unit real-time supervision power commonly used and stand-by power state to with the monitoring data send to in the power state data processing unit, power state data processing unit basis power monitoring unit input power commonly used and stand-by power state data and power state timing unit's the time length data of timing, output control signal extremely circuit management and control module controls cutting off or being connected between power commonly used and stand-by power and the main power output, and then control host computer platform working power.
As a further arrangement of the invention, the power supply protection device also comprises an alarm unit, the power supply monitoring unit also comprises a standby power supply under-voltage monitoring unit,
the invention is further provided that the power supply uninterrupted module is composed of a power supply processing integrated circuit and peripheral elements thereof, the power supply processing integrated circuit is provided with two groups of power supply input ends and one group of power supply output ends, the common power supply and the standby power supply are respectively connected with the two groups of power supply input ends of the power supply processing integrated circuit, and the power supply output end of the power supply processing integrated circuit is connected with the main power supply output end.
As a further arrangement of the invention, the communication module is composed of a serial communication integrated circuit and peripheral elements thereof.
As a further arrangement of the invention, the main control module is composed of a data processing system which takes a single chip microcomputer as a core and consists of peripheral elements thereof; the circuit management and control module is including having the control relay of two sets of one normally open, a normally closed switch and the drive unit who constitutes for the core by the drive triode, two common contacts in two sets of one normally open, a normally closed switch with the output of the incessant module of power is connected, two normally open contacts in two sets of one normally open, a normally closed switch with main power output end connects, one normally closed contact in two sets of one normally open, a normally closed switch with power monitoring unit input among the host system is connected, power state data processing unit's control output end is connected with drive unit's drive end.
As a further arrangement of the invention, the power monitoring unit, the power state timing unit and the power state data processing unit in the main control module are composed of a data processing system which takes the same single chip microcomputer as a core and consists of peripheral elements thereof; the control relay is a magnetic latching relay.
Compared with the prior art, the gas station monitoring platform power supply protection device can monitor the states of a common power supply and a standby power supply in real time and control the on-off of a power supply line by the main control module, the power uninterrupted module, the circuit control module, the communication module, the standby power supply and the like, so that when the common power supply is powered off, the standby power supply is automatically connected, and the power supply protection device is used for informing and waiting for the normal shutdown of a platform host machine to cut off the power supply line; when the common power supply is recovered, the platform host automatically starts up after the power supply protection device automatically closes the power supply circuit. Therefore, the monitoring platform cannot be stored, data are transmitted or even burnt due to power failure, and the automatic protection functions of power failure self-shutdown and power on self-startup of the monitoring platform are accurately and reliably realized.
The invention is further described with reference to the following figures and specific embodiments.
Drawings
FIG. 1 is a first schematic block diagram of an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of a main control module according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of an exemplary embodiment of a UPS module according to the present invention;
FIG. 4 is a schematic diagram illustrating an embodiment of a circuit management module according to the present invention;
FIG. 5 is a circuit diagram of a communication module according to an embodiment of the present invention;
FIG. 6 is a schematic circuit diagram of an internal power supply unit according to an embodiment of the present invention;
FIG. 7 is a schematic circuit diagram of an embodiment of the present invention;
FIG. 8 is a block diagram of a control flow according to an embodiment of the present invention;
fig. 9 is a schematic block diagram of a second embodiment of the present invention.
Detailed Description
As shown in fig. 1, the power protection device of the gas station monitoring platform of the present invention comprises a main control module, a power uninterrupted module, a circuit control module, a communication module, a standby power supply, and an internal power supply unit for providing a working power supply for an internal circuit of the protection device; the communication module is connected between the main control module and the host platform and used for transmitting information and instructions between the main control module and the platform host, and the communication module can select a circuit formed by discrete components or a mature communication integrated circuit such as a serial communication integrated circuit according to the transmission index requirement; the power supply uninterrupted module is connected with a common power supply and a standby power supply, and has the functions that when neither the common power supply nor the standby power supply is input, the power supply uninterrupted module does not have working power supply output, when either the common power supply or the standby power supply has input, the power supply uninterrupted module has working power supply output, and the working power supply is controlled by the circuit management and control module and then is output as a working power supply of the platform host; the circuit management and control module is connected between the output end of the power supply uninterrupted module and the output end of a main power supply, and the output of the main power supply is used as the power supply output of the host platform through the output end of the main power supply; the main control module output with circuit management and control module connects, main control module includes power monitoring unit, power state timing unit and power state data processing unit, power monitoring unit real-time supervision power commonly used and stand-by power state to with monitoring data send to in the power state data processing unit, power state data processing unit basis power monitoring unit input power commonly used and stand-by power state data and power state timing unit's the time length of timing data, output control signal extremely circuit management and control module controls cut off or be connected between power commonly used and stand-by power and the main power output end, and then control host computer platform working power supply, and the power state here indicates power normal power supply state or outage state. The power monitoring unit, the power state timing unit and the power state data processing unit can be independent circuit units, or can be an integrated circuit unit formed by a micro data processing chip such as a single chip microcomputer and peripheral elements thereof.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the preferred embodiments of the present application and the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this embodiment, the power protection device of the gas station monitoring platform also includes a main control module, a power uninterruptible module, a circuit control module, a communication module, and a standby power supply.
In order to improve system reliability, reduce size, and facilitate maintenance, as shown in fig. 7, in this embodiment, the power monitoring unit, the power state timing unit, and the power state data processing unit in the main control module are formed by a data processing system that uses a single chip microcomputer U5 as a core, and an internal program thereof, and peripheral elements such as a memory U4; according to data input and output signals and requirements for internal timers and the like, the single chip microcomputer U5 in the specific embodiment is a micro processing chip with the model of STM32L151, and the memory U4 is AT24C 02.
The communication module is composed of an asic U6 and its peripheral components, as shown in fig. 5, in this embodiment, a 485 communication chip may be used to obtain more reliable transmission characteristics. A PA10\ PA11 pin of the singlechip U5 in the main control module is used as a communication port to be connected with a special communication integrated chip U6, and a serial output end of the special communication integrated chip U6 is output through a plug-in connector J1 and transmits information and instructions with a platform host; and a PA1\ PA2 pin of a singlechip U5 in the main control module is respectively used as a standby power supply state monitoring end and a common power supply state monitoring end of the power supply state data processing unit.
The function of the uninterrupted power supply module is when all having input with stand-by power supply when power commonly used, uninterrupted power supply module does not have the output of working power supply, when any power in power commonly used and stand-by power supply has input, uninterrupted power supply module has the output of working power supply, and the working power supply process of here output as the working power supply of platform host computer after the control of circuit management and control module. There are many specific circuits that satisfy the above functions, such as circuits similar to the circuit for performing an or operation on a power supply, and the circuits may be formed by discrete components or integrated circuits. As shown in fig. 3, in the present embodiment, the ups module includes a power processing ic U1 and its peripheral components, the power processing ic U1 is commercially available, such as the model number HTL6023 power processing integrated circuit manufactured by seitah semiconductor technology limited, the power supply processing integrated circuit is provided with two groups of power supply input ends and one group of power supply output ends, the common power supply and the standby power supply are respectively connected with the two groups of power supply input ends of the power supply processing integrated circuit, the power output end of the power processing integrated circuit is connected with the main power output end plug-in connector P3 through the circuit management and control module, the anodes of the common power supply and the standby power supply are respectively connected with pins PA2\ PA1 of a common power supply state monitoring end and a standby power supply state monitoring end serving as power supply state data processing units in a singlechip U5 in the main control module through a first current-limiting resistor R1 and a second current-limiting resistor R2.
As shown in fig. 9, in order to avoid the situation that the standby power supply voltage is too low to cause the device to fail to operate normally, an under-voltage monitoring unit is preferably arranged, the power supply monitoring unit further includes an under-voltage monitoring unit, the under-voltage monitoring unit monitors the under-voltage state of the standby power supply in real time and sends monitoring data to the power supply state data processing unit, and the alarm unit outputs an alarm signal to the communication module according to the data processed by the power supply state data processing unit, so as to report an alarm prompt on the host platform. The undervoltage monitoring unit circuit can be composed of discrete components or an integrated circuit. In this embodiment, the HTL6023 power supply processing integrated circuit integrated with the under-voltage monitoring unit is selected, so as to further simplify the circuit structure.
The circuit management and control module is connected between the output end of the power supply uninterrupted module and a plug connector P3 of the output end of the main power supply, the power supply monitoring unit monitors the states of the common power supply and the standby power supply in real time and sends monitoring data to the power supply state data processing unit, and the power supply state data processing unit outputs control signals to the circuit management and control module according to the common power supply and standby power supply state data input by the power supply monitoring unit and the timing duration data of the power supply state timing unit to control the common power supply and the standby power supply to be cut off or connected with the output end of the main power supply so as to control the working power supply of the host platform.
The circuit management and control module is including having the control relay of two sets of one normally open, a normally closed switch and the drive unit who constitutes for the core by the drive triode, two common contacts in two sets of one normally open, a normally closed switch with the output of the incessant module of power is connected, two normally open contacts in two sets of one normally open, a normally closed switch with main power output end connects, one normally closed contact in two sets of one normally open, a normally closed switch with power monitoring unit input among the host system is connected, power state data processing unit's control output is connected with drive unit's drive end, controls the control relay action. As shown in fig. 4, in this embodiment, the two sets of control relay control relays K1 with one normally open switch and one normally closed switch are preferably magnetic latching relays, and the driving transistor is two NPN-type triacs, which are a first driving transistor Q1 and a second driving transistor Q2 respectively; the base of the first drive transistor Q1 is connected with the power ground, and the first coil of the magnetic latching relay is connected between the positive electrode of the power supply and the collector of the first drive transistor Q1; the base of the second driving triode Q2 is connected with a power ground, a second coil of the magnetic latching relay is connected between the positive electrode of a power supply and the collector of the second driving triode Q2, a first PA4\ PA5 pin of a singlechip U5 in the main control module is respectively used as a first control output end K _ ON and a second control output end K _ OFF of the power state data processing unit, the first control output end is connected with the base of the first driving triode Q1 through a first voltage division branch consisting of a resistor R9 and a resistor R10 to form a first driving unit, and the second control output end is connected with the base of the second driving triode Q2 through a second voltage division branch consisting of a resistor R11 and a resistor R12 to form a second driving unit.
The working principle of the line management and control module is as follows:
when a common power supply is normally powered ON, the pin K _ ON of the singlechip U5 outputs a high level signal (powering ON the platform host), the high level signal acts ON the base of the triode Q1 after passing through the resistor R9 (NPN triode characteristic: the collector and the emitter are conducted when the base is high-level), so that the collector and the emitter of the triode Q1 are conducted, two ends of the pins 2 and 9 of the control relay K1 are respectively connected with a power supply +12V and a power supply ground, namely two ends of a coil form an electric loop, and the state of two groups of normally open switches and normally closed switches of the relay K1 are switched and kept in the current state: pin 4 is connected with pin 5, and pin 7 is connected with pin 8 (under the outage condition, pin 4 is connected with pin 3, and pin 7 is connected with pin 6), and power Vcc acts on interface P3 after passing through control relay K1 pin 4, pin 5 or pin 7, pin 8, and supplies power to the platform host computer promptly. At this time, the pin S _ JDQ of the single chip microcomputer U5 does not receive a high level signal through the pin 3 and the pin 4 of the control relay K1, and it is determined that the line control module is in a power supply line state for connecting the platform host.
When the common power supply is continuously powered OFF for a period of time, the pin K _ OFF of the singlechip U5 outputs a high level signal, the high level signal passes through the resistor R11 and then acts on the base of the triode Q2, so that the collector and the emitter of the triode Q2 are conducted, the two ends of the pin 1 and the pin 10 of the control relay K1 are respectively connected with a power supply +12V and a power supply ground, namely, the two ends of a coil form an electric loop, and the two groups of normally open and normally closed switches of the relay control relay K1 are switched and keep the current state: pin 4 is connected to pin 3 and pin 7 is connected to pin 6. At this time, pin 4 and pin 5 of the control relay K1, or pin 7 and pin 8 are all turned off, and the power Vcc cannot act on the interface P3, i.e., the platform host is powered off. At this time, the pin S _ JDQ of the single chip microcomputer U5 receives a high level signal through the pin 3 and the pin 4 of the control relay K1, and determines that the line management and control module is in a state of disconnecting the power supply line of the platform host.
The power supply protection device further comprises an alarm unit, and the power supply monitoring unit further comprises a standby power supply under-voltage monitoring unit.
As shown in fig. 8, in this embodiment, the monitoring platform uses the commercial power as a common power supply to normally work, and the power monitoring unit of the power protection device can monitor the common power state and the standby power state in real time to supply power to the device and the platform host of the monitoring platform. When the standby power supply is under-voltage, the monitoring platform has an alarm function.
When the common power supply is abnormally disconnected, the power supply monitoring unit immediately starts the standby power supply to supply power, and the power supply of the power supply protection device and the platform host is ensured to be uninterrupted.
When the common power supply is abnormal for a period of time (for example, a power failure occurs for 10 seconds), the power supply protection device sends a shutdown instruction to a software system of the platform host of the monitoring platform, and the platform host performs data storage before shutdown.
After the platform host completes normal shutdown and waits for a period of time (for example, shutdown is executed through software and waits for 1 minute), the main control module of the power protection device controls the circuit management and control module to cut off power circuits between the platform host and all power supplies (including a common power supply and a standby power supply) after the host completes normal shutdown.
In the process of finishing the operation of shutdown through the instruction, whether the common power supply is recovered or not does not change the shutdown operation of the platform host. After the shutdown operation is completed, the standby power supply only supplies power to the power supply protection device, and a power supply monitoring unit of the power supply protection device monitors whether the common power supply is recovered or not in real time.
When the common power supply is recovered and lasts for a period of time (such as recovering power supply and lasting for 10 seconds), the main control module of the power supply protection device controls the circuit management and control module to close the power supply circuit between the platform host and all power supplies (including the common power supply and the standby power supply), the platform host has the function of automatically starting up after being electrified, and the platform host automatically starts up after being electrified.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. The utility model provides a filling station control platform power protection device which characterized in that: the intelligent power supply comprises a main control module, a power supply uninterrupted module, a circuit management and control module, a communication module and a standby power supply; the communication module is connected between the main control module and the host platform and is used for transmitting information and instructions between the main control module and the platform host; the power supply uninterrupted module is connected with a common power supply and a standby power supply, when the common power supply and the standby power supply are not input, the power supply uninterrupted module does not have working power supply output, and when any power supply of the common power supply and the standby power supply is input, the power supply uninterrupted module has working power supply output; the circuit management and control module is connected between the output end of the power supply uninterrupted module and the output end of a main power supply, and the output end of the main power supply is used as the power supply input end of the host platform; the output end of the main control module is connected with the circuit control module, the main control module outputs a control signal to the circuit control module to control the connection or disconnection between the common power supply and the main power supply output end and between the standby power supply and the main power supply output end, and further control the working power supply of the host platform.
2. A gasoline station monitoring platform power protection device as claimed in claim 1, characterized in that: the main control module comprises a power monitoring unit, a power state data processing unit and a power control unit, the power monitoring unit monitors the states of a common power supply and a standby power supply in real time and sends monitoring data to the power state data processing unit, and the power control unit outputs control signals to the circuit management and control module according to the data processed by the power state data processing unit and controls the common power supply and the standby power supply to be connected with a main power supply output end so as to control the working power supply of the host platform.
3. A gasoline station monitoring platform power protection device as claimed in claim 2, characterized in that: the main control module further comprises an alarm unit, the power supply monitoring unit further comprises an under-voltage monitoring unit, the under-voltage monitoring unit monitors the under-voltage state of the standby power supply in real time and sends monitoring data to the power supply state data processing unit, and the alarm unit outputs an alarm signal to the communication module according to the data processed by the power supply state data processing unit and then reports an alarm prompt on the host platform.
4. A gasoline station monitoring platform power protection device as claimed in claim 1, characterized in that: the power supply uninterrupted module is composed of a power supply processing integrated circuit and peripheral elements thereof, the power supply processing integrated circuit is provided with two groups of power supply input ends and a group of power supply output ends, the common power supply and the standby power supply are respectively connected with the two groups of power supply input ends of the power supply processing integrated circuit, and the power supply output end of the power supply processing integrated circuit is connected with the main power supply output end.
5. A gasoline station monitoring platform power protection device as claimed in any of claims 1-4, characterized in that: the communication module is composed of a serial communication integrated circuit and peripheral elements thereof.
6. A gasoline station monitoring platform power protection device as claimed in claim 5, characterized in that: the main control module is composed of a data processing system which takes a single chip microcomputer as a core and consists of peripheral elements.
7. A gasoline station monitoring platform power protection device as claimed in claim 6, characterized in that: the circuit management and control module is including having the control relay of two sets of one normally open, a normally closed switch and the drive unit who constitutes for the core by the drive triode, two common contacts in two sets of one normally open, a normally closed switch with the output of the incessant module of power is connected, two normally open contacts in two sets of one normally open, a normally closed switch with main power output end connects, one normally closed contact in two sets of one normally open, a normally closed switch with power monitoring unit input among the host system is connected, power control unit's control output and drive unit's drive end are connected.
8. A gasoline station monitoring platform power protection device as claimed in claim 7, wherein: the power monitoring unit and the power control and power state data processing unit in the main control module are composed of a data processing system which takes the same single chip microcomputer as a core and consists of peripheral elements thereof.
9. A gasoline station monitoring platform power protection device as claimed in claim 8, wherein: the control relay is a magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127127.XA CN114825580A (en) | 2021-01-29 | 2021-01-29 | Gas station's monitor platform power protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110127127.XA CN114825580A (en) | 2021-01-29 | 2021-01-29 | Gas station's monitor platform power protection device |
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| CN114825580A true CN114825580A (en) | 2022-07-29 |
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| CN202110127127.XA Pending CN114825580A (en) | 2021-01-29 | 2021-01-29 | Gas station's monitor platform power protection device |
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- 2021-01-29 CN CN202110127127.XA patent/CN114825580A/en active Pending
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