CN211151595U - Remote terminal unit with power-down protection and alarm functions - Google Patents
Remote terminal unit with power-down protection and alarm functions Download PDFInfo
- Publication number
- CN211151595U CN211151595U CN201921947185.1U CN201921947185U CN211151595U CN 211151595 U CN211151595 U CN 211151595U CN 201921947185 U CN201921947185 U CN 201921947185U CN 211151595 U CN211151595 U CN 211151595U
- Authority
- CN
- China
- Prior art keywords
- direct
- current
- power supply
- control unit
- external
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a transmission control regulation field specifically is a remote terminal unit with power down protection and alarming function. The utility model provides a remote terminal unit with power down protection and alarming function, includes little the control unit (1) and sensor (2), characterized by: the device is characterized by further comprising an external direct-current power supply (3), a direct-current-direct-current switch power supply (4), a power management chip (5) and a storage battery (6), wherein the external direct-current power supply (3) is connected with the power management chip (5) through the direct-current-direct-current switch power supply (4), and the power management chip (5) is respectively connected with the micro-control unit (1) and the storage battery (6). The utility model discloses system robustness is high, maintainability is good.
Description
Technical Field
The utility model relates to a transmission control regulation field specifically is a remote terminal unit with power down protection and alarming function.
Background
With the increase of application complexity, many RTUs adopt an operating system based on L inux kernel And simultaneously use embedded databases such as Sqlite And the like for accessing Data, however, due to the particularity of industrial field environment, the system power failure condition often occurs, on one hand, the damage of a file system or a database system of the RTU (because the RTU continuously writes in sensor Data) can be caused, And on the other hand, after the RTU is powered down, a Remote server cannot judge whether the field is caused by a Remote communication network problem or a field power supply problem, or the interruption of Data transmission is caused, so that the rapid troubleshooting of the system fault is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect of the prior art, the utility model provides a data processing equipment that system robustness is high, maintainability is good, the utility model discloses a remote terminal unit with power down protection and alarming function.
The utility model discloses a following technical scheme reaches the invention purpose:
the utility model provides a remote terminal unit with power down protection and alarming function, includes little the control unit and sensor, little the control unit passes through signal line connection sensor, characterized by: the remote terminal unit comprises a micro control unit, a direct current-direct current switch power supply, a power management chip and a storage battery, wherein a direct current output end of the external direct current power supply is connected with a direct current input end of the direct current-direct current switch power supply and a sensor through a lead, a direct current output end of the direct current-direct current switch power supply is connected with a direct current input end of the power management chip through a lead, and a direct current output end of the power management chip is respectively connected with the micro control unit and the storage battery through signal lines;
the external direct current power supply comprises an external alternating current power supply and a rectifying device, wherein the external alternating current power supply selects commercial power with the voltage of 220V and the frequency of 50hz, the alternating current output end of the external alternating current power supply is connected with the alternating current input end of the rectifying device, and the direct current output end of the rectifying device is connected with the direct current input end of the direct current-direct current switching power supply.
The remote terminal unit with the power failure protection and alarm functions is characterized in that: the storage battery is a lithium battery; the direct current output end of the power management chip and the connecting port of the micro control unit adopt an I2C port.
The utility model provides a remote terminal unit with power down protection and alarming function, includes little the control unit and sensor, little the control unit passes through signal line connection sensor, characterized by: the remote terminal unit comprises a micro control unit, a direct current-direct current switch power supply and a communication module, wherein a direct current output end of the external direct current power supply is connected with a direct current input end of the direct current-direct current switch power supply through a wire;
the external direct-current power supply comprises a solar panel, a solar controller and a solar cell, a direct-current output end of the solar panel is connected with a direct-current input end of the solar controller and a sensor through wires, a direct-current output end of the solar controller is respectively connected with a direct-current input end of the direct-current-direct-current switching power supply and a direct-current input end of the solar cell through wires, and the solar controller is further connected with a communication module through a signal wire.
The remote terminal unit with the power failure protection and alarm functions is characterized in that: and the communication module adopts an RS485 chip.
The use method of the remote terminal unit with the power failure protection and alarm functions is characterized by comprising the following steps: the method is implemented in sequence according to the following steps:
① supplying power, wherein an external DC power supply supplies power to the micro control unit through a DC-DC switch power supply and a power management chip, and simultaneously supplies power to each sensor and charges a storage battery;
② management, the micro control unit performs charging and discharging management on the storage battery through the power management chip, acquires information such as power supply state of the external direct current power supply, residual capacity of the storage battery (6), residual working time of the storage battery (6) and the like (for example, various state register states in the power management chip are read through an I2C interface based on SMBus protocol to obtain power system information), and reports the information to the monitoring platform in real time;
③ power failure alarm, wherein when the external DC power supply stops supplying power due to the cut-off of the external AC power supply, the micro control unit is powered by the storage battery, the sensor cannot communicate or collect data due to the cut-off of the power supply, the micro control unit obtains the signal of the cut-off of the power supply through the power supply management chip, and reports the cut-off information of the external DC power supply to the monitoring platform through the mobile network, or informs the manager through short messages, mails and the like;
④ shutdown alarm, wherein when the battery capacity is less than 5% or the working time is less than 10 minutes, the micro control unit sends out the final alarm to inform the user that the battery will be in shutdown state due to insufficient electric quantity, and warns to recover the power supply of the external DC power supply as soon as possible;
⑤ recovering that when the external DC power supply recovers power supply, the external DC power supply supplies power to the micro control unit again through the DC-DC switch power supply and the power management chip, and simultaneously supplies power to each sensor and charges the storage battery, the micro control unit is powered on again, the states of the sensor, the external DC power supply and the storage battery are monitored again, real-time parameters are reported, power failure alarm is relieved, and data of the sensor are collected again.
The use method of the remote terminal unit with the power failure protection and alarm functions is characterized by comprising the following steps: the method is implemented in sequence according to the following steps:
① supplying power, wherein an external DC power supply supplies power to the micro control unit through a DC-DC switch power supply and simultaneously supplies power to each sensor;
② management, the micro control unit obtains the charging voltage, residual capacity and other information of the solar battery through the communication between the communication module and the solar controller, and reports the information to the monitoring platform in real time
③ alarm with low battery, when the capacity of the solar battery is less than 30% and the charging voltage is lower than the threshold (i.e. insufficient solar light), the micro control unit reduces the collection frequency of the sensor according to the user preset strategy to reduce the power consumption;
④ shutdown alarm, wherein when the capacity of the solar battery is less than 5%, the micro control unit sends out the last alarm to inform the user that the battery will be in shutdown state due to insufficient electric quantity, and warns to recover the power supply of the external DC power supply as soon as possible;
⑤ recovering that when the external DC power supply recovers power supply, the micro control unit is powered on again, monitors the state of the sensor and the external DC power supply again, reports real-time parameters, releases power failure alarm, and collects data of the sensor again.
The utility model discloses following beneficial effect has: the RTU with the power-down protection and alarm functions is provided, the power-down alarm of a field data acquisition system is realized, and the RTU is ensured to perform autonomous soft shutdown before the battery is exhausted through a software algorithm and a battery technology, so that the damage of the system or a database is avoided. The reliability and the troubleshooting performance of the system are greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention using an external DC power supply for power supply;
fig. 2 is a schematic structural diagram of the solar battery of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The utility model provides a remote terminal unit with power fail safeguard and alarming function, includes little the control unit 1 and sensor 2, external DC power supply 3, direct current-direct current switching power supply 4, power management chip 5 and battery 6, as shown in figure 1, concrete structure is:
the remote terminal unit comprises a micro control unit 1, a direct current-direct current switch power supply 4, a power management chip 5 and a storage battery 6, wherein the micro control unit 1 is connected with a sensor 2 through a signal line, a direct current output end of an external direct current power supply 3 is connected with a direct current input end of the direct current-direct current switch power supply 4 and the sensor 2 through a lead, a direct current output end of the direct current-direct current switch power supply 4 is connected with a direct current input end of the power management chip 5 through a lead, and a direct current output end of the power management chip 5 is respectively connected with the micro control unit 1 and the storage battery 6 through signal lines;
the external direct current power supply 3 comprises an external alternating current power supply 31 and a rectifying device 32, the external alternating current power supply 31 selects commercial power with the voltage of 220V and the frequency of 50hz, the alternating current output end of the external alternating current power supply 31 is connected with the alternating current input end of the rectifying device 32, and the direct current output end of the rectifying device 32 is connected with the direct current input end of the direct current-direct current switching power supply 4.
In this embodiment: the storage battery 6 is a lithium battery; the direct current output end of the power management chip 5 and the connection port of the micro control unit 1 adopt an I2C port.
When the method is used, the steps are implemented in sequence as follows:
①, an external direct current power supply 3 supplies power to the micro control unit 1 through a direct current-direct current switch power supply 4 and a power management chip 5, simultaneously supplies power to each sensor 2 and charges a storage battery 6;
② management, the micro control unit 1 performs charging and discharging management on the storage battery 6 through the power management chip 5, obtains information such as power supply state of the external direct current power supply 3, residual capacity of the storage battery 6, residual working time of the storage battery 6 and the like (for example, various state register states in the power management chip are read through an I2C interface based on SMBus protocol to obtain power system information), and reports the information to the monitoring platform in real time;
③ power failure alarm, wherein when the external DC power supply 3 stops supplying power due to the disconnection of the external AC power supply 31, the micro control unit 1 is powered by the storage battery 6, the sensor 2 cannot communicate or collect data due to the power interruption, the micro control unit 1 obtains a power disconnection signal through the power management chip 5, and the micro control unit 1 reports the disconnection information of the external DC power supply 3 to the monitoring platform through the mobile network or informs the manager through short messages, mails and the like;
④ shutdown alarm, wherein when the capacity of the storage battery 6 is less than 5% or the working time is less than 10 minutes, the micro control unit 1 sends out the final alarm to inform the user that the power supply is in shutdown state due to insufficient electric quantity, and warns to recover the power supply of the external DC power supply 3 as soon as possible;
⑤ recovering that when the external DC power supply 3 recovers power supply, the external DC power supply 3 supplies power to the micro control unit 1 through the DC-DC switch power supply 4 and the power management chip 5 again, and simultaneously supplies power to each sensor 2 and charges the storage battery 6, the micro control unit 1 is powered on again, the states of the sensor 2, the external DC power supply 3 and the storage battery 6 are monitored again, real-time parameters are reported, power failure alarm is relieved, and data of the sensor 2 are collected again.
Example 2
The utility model provides a remote terminal unit with power fail safeguard and alarming function, includes little the control unit 1, sensor 2, external DC power supply 3, direct current-direct current switching power supply 4 and communication module 7, as shown in figure 2, concrete structure is:
the remote terminal unit comprises a micro control unit 1, a direct current-direct current switch power supply 4 and a communication module 7, wherein the micro control unit 1 is connected with a sensor 2 through a signal line, a direct current output end of an external direct current power supply 3 is connected with a direct current input end of the direct current-direct current switch power supply 4 through a lead, a direct current output end of the direct current-direct current switch power supply 4 is connected with the micro control unit 1 through a lead, and the communication module 7 is connected with the micro control unit 1 through a signal line;
the external direct-current power supply 3 comprises a solar panel 33, a solar controller 34 and a solar battery 35, the direct-current output end of the solar panel 33 is connected with the direct-current input end of the solar controller 34 and the sensor 2 through wires, the direct-current output end of the solar controller 34 is respectively connected with the direct-current input end of the direct-current-direct-current switching power supply 4 and the direct-current input end of the solar battery 35 through wires, and the solar controller 34 is further connected with the communication module 7 through a signal wire.
In this embodiment: the communication module 7 adopts an RS485 chip.
When the method is used, the steps are implemented in sequence as follows:
①, an external direct current power supply 3 supplies power to the micro control unit 1 through a direct current-direct current switch power supply 4 and simultaneously supplies power to each sensor 2;
② management, the micro control unit 1 obtains the charging voltage, residual capacity and other information of the solar battery 35 through the communication between the communication module 7 and the solar controller 34, and reports the information to the monitoring platform in real time
③ alarm with low battery, when the capacity of the solar battery 35 is less than 30% and the charging voltage is lower than the threshold (i.e. the solar light is insufficient), the micro control unit 1 reduces the collection frequency of the sensor 2 according to the user preset strategy to reduce the power consumption;
④ shutdown alarm, wherein when the capacity of the solar battery 35 is less than 5%, the micro control unit 1 sends out the last alarm to inform the user that the power supply will be in shutdown state due to insufficient electric quantity, and warns to recover the power supply of the external DC power supply 3 as soon as possible;
⑤ recovering that when the external DC power supply 3 recovers power supply, the micro control unit 1 is powered on again, monitors the state of the sensor 2 and the external DC power supply 3 again, reports real-time parameters, relieves power failure alarm, and collects data of the sensor 2 again.
Claims (4)
1. The utility model provides a remote terminal unit with power down protection and alarming function, includes little the control unit (1) and sensor (2), little the control unit (1) passes through signal line connection sensor (2), characterized by: the remote control system is characterized by further comprising an external direct-current power supply (3), a direct-current-direct-current switch power supply (4), a power management chip (5) and a storage battery (6), wherein the micro control unit (1), the direct-current-direct-current switch power supply (4), the power management chip (5) and the storage battery (6) form a remote terminal unit, a direct-current output end of the external direct-current power supply (3) is connected with a direct-current input end of the direct-current-direct-current switch power supply (4) and the sensor (2) through a lead, a direct-current output end of the direct-current-direct-current switch power supply (4) is connected with a direct-current input end of the power management chip (5) through a lead, and a direct-current output end of the power management chip (;
the external direct-current power supply (3) comprises an external alternating-current power supply (31) and a rectifying device (32), the external alternating-current power supply (31) selects commercial power with the voltage of 220V and the frequency of 50hz, the alternating-current output end of the external alternating-current power supply (31) is connected with the alternating-current input end of the rectifying device (32), and the direct-current output end of the rectifying device (32) is connected with the direct-current input end of the direct-current-direct-current switching power supply (4).
2. The remote terminal unit with power down protection and alarm function as claimed in claim 1, wherein: the storage battery (6) is a lithium battery; the direct current output end of the power management chip (5) and the connection port of the micro control unit (1) adopt an I2C port.
3. The utility model provides a remote terminal unit with power down protection and alarming function, includes little the control unit (1) and sensor (2), little the control unit (1) passes through signal line connection sensor (2), characterized by: the remote control system is characterized by further comprising an external direct-current power supply (3), a direct-current-direct-current switch power supply (4) and a communication module (7), wherein the micro control unit (1), the direct-current-direct-current switch power supply (4) and the communication module (7) form a remote terminal unit, a direct-current output end of the external direct-current power supply (3) is connected with a direct-current input end of the direct-current-direct-current switch power supply (4) through a lead, a direct-current output end of the direct-current-direct-current switch power supply (4) is connected with the micro control unit (1) through a lead, and the communication module (7) is connected with the;
the external direct-current power supply (3) comprises a solar panel (33), a solar controller (34) and a solar battery (35), the direct-current output end of the solar panel (33) is connected with the direct-current input end of the solar controller (34) and the sensor (2) through wires, the direct-current output end of the solar controller (34) is respectively connected with the direct-current input end of the direct-current-direct-current switching power supply (4) and the direct-current input end of the solar battery (35) through wires, and the solar controller (34) is further connected with the communication module (7) through a signal line.
4. The remote terminal unit with power down protection and alarm function as claimed in claim 3, wherein: and the communication module (7) adopts an RS485 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947185.1U CN211151595U (en) | 2019-11-12 | 2019-11-12 | Remote terminal unit with power-down protection and alarm functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947185.1U CN211151595U (en) | 2019-11-12 | 2019-11-12 | Remote terminal unit with power-down protection and alarm functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151595U true CN211151595U (en) | 2020-07-31 |
Family
ID=71745120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921947185.1U Active CN211151595U (en) | 2019-11-12 | 2019-11-12 | Remote terminal unit with power-down protection and alarm functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151595U (en) |
-
2019
- 2019-11-12 CN CN201921947185.1U patent/CN211151595U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280924B (en) | Uninterrupted power supply system for relay protection device | |
| CN105680559A (en) | Substation DC system | |
| CN202679060U (en) | Uninterrupted power source management system of seabed observation network | |
| CN104333081A (en) | Online maintenance method of distributed power supply | |
| CN201290011Y (en) | Controller for solar electricity recharge/discharge | |
| CN110829578A (en) | Remote terminal unit with power-down protection and alarm functions and using method thereof | |
| CN205070589U (en) | Multi -functional ACDC converting means | |
| CN204361705U (en) | Stand-by power supply management system | |
| CN104333082B (en) | Distributed power source on-line maintenance system and method | |
| CN211151595U (en) | Remote terminal unit with power-down protection and alarm functions | |
| CN215813253U (en) | Remote control system for checking capacity of communication power supply storage battery | |
| CN204905996U (en) | Emergent portable power source of 380V electric power | |
| CN105870998B (en) | A kind of rectification module dormancy control method of transformer station direct current system | |
| CN209070337U (en) | Mine data switch remote monitoring device | |
| CN211089210U (en) | Controllable charging and discharging switching circuit and power distribution terminal thereof | |
| CN113659673A (en) | Quick charging and grid-connected connecting device based on energy storage power supply and working method thereof | |
| CN207588523U (en) | A kind of intelligent charging system of VRLA accumulators | |
| CN201893598U (en) | Automatic detection and control charging power supply equipment | |
| CN206947959U (en) | A kind of micro-grid new energy hybrid energy storage system | |
| CN109507932A (en) | Mine data switch remote monitoring device and monitoring method | |
| CN204905950U (en) | Emergent portable power source of 220V electric power | |
| CN203086206U (en) | Power supply system with network management function | |
| CN211655844U (en) | System for detecting and automatically reporting voltage loss of high-voltage electricity meter | |
| CN213937411U (en) | Take direct current intelligence power consumption management device of 4G communication | |
| CN220754425U (en) | UPS power supply scheduling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |