CN213518611U

CN213518611U - RTU power failure remote alarm system

Info

Publication number: CN213518611U
Application number: CN202022934481.7U
Authority: CN
Inventors: 邓稳; 宗波; 冯永生; 夏俊
Original assignee: Suzhou Deyuntong Information Technology Co ltd
Current assignee: Suzhou Deyuntong Information Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-06-22
Anticipated expiration: 2030-12-09

Abstract

The utility model provides a remote alarm system for RTU power failure, which comprises a control module, an LDO power supply module, a power failure signal output module, a communication module and a power failure maintaining module, wherein the control module is respectively connected with the output end of the LDO power supply module and the output end of the power failure signal output module; the output end of the power failure maintaining module is connected with the input end of the LDO power supply module, and the input end of the power failure maintaining module is connected with the output end of the power failure signal output module; the communication module is in communication connection with the control module, and the power input end of the communication module is connected with the output end of the power-down maintaining module. The utility model discloses a power down signal output module acquires external power source's power down information, but the power down maintains the module seamless switching power in real time, maintains equipment normal work, and control module passes through communication module and in time reports alarm information, accomplishes configuration parameter and data storage, guarantees RTU's stability, improves management department's equipment management, improve equipment maintenance's promptness.

Description

RTU power failure remote alarm system

Technical Field

The utility model relates to a remote control technical field especially relates to RTU falls electric remote alarm system.

Background

An RTU (Remote Terminal Unit) is a device capable of automatically completing the acquisition, storage, transmission and control of parameters such as pressure, temperature, flow, battery voltage and the like of liquefied natural gas, and because various sudden conditions exist in the field environment where the RTU is located, for example, sudden power failure in the operation process of the RTU can cause processor parameter errors, configuration information loss, loss of FLASH data to be written in an RAM, and even damage of the RTU main control Unit, the stability of the RTU is affected, and the management cost and the operation cost are increased.

Disclosure of Invention

The utility model is directed to the above-mentioned problem, provide RTU falls electric remote alarm system.

In order to solve at least one of the above technical problems, the utility model provides a following technical scheme:

the RTU power failure remote alarm system comprises a control module, an LDO power supply module, a power failure signal output module, a communication module and a power failure maintaining module,

the control module is respectively connected with the output end of the LDO power supply module and the output end of the power failure signal output module;

the output end of the power failure maintaining module is connected with the input end of the LDO power supply module, and the input end of the power failure maintaining module is connected with the output end of the power failure signal output module;

the communication module is in communication connection with the control module, and the power input end of the communication module is connected with the output end of the power-down maintaining module.

In some embodiments, the control module is chip U102 of model STM32L431RCT 6.

In some embodiments, the LDO power supply module includes a chip U100 of model XC6206P332, a VOUT pin of the chip U100 is connected to a power input terminal of the control module, and a VIN pin of the chip U100 is connected to an output terminal of the power-down maintenance module.

In some embodiments, the power-down signal output module includes a chip U103 of model LM809M3-4.38, an RST pin of the chip U103 is connected to a signal input terminal of the power-down maintaining module and a PA0 pin of the chip U102, respectively, and a VCC pin of the chip U103 is connected to an external power supply.

In some embodiments, the power-down maintaining module includes a super capacitor BT100, a capacitor charging unit and a capacitor power supply unit, the capacitor charging unit includes a resistor R108 and a diode D106 connected in series, an anode of the diode D106 is connected to an external power supply, a cathode of the diode D106 is connected to the resistor R108, and the resistor R108 is connected to the super capacitor BT 100; the capacitor power supply unit comprises a field effect transistor Q100 and a diode D109, the grid electrode of the field effect transistor Q100 is used as the signal input end of the power failure maintaining module and is connected with the RST pin of the chip U103, the source electrode of the field effect transistor Q100 is connected with the super capacitor BT100, the drain electrode of the field effect transistor Q100 is connected with the anode of the diode D109, and the cathode of the diode D109 is respectively connected with the VIN port of the chip U100 and the power supply input end of the communication module.

In some embodiments, the communication module further comprises an external power supply module, the external power supply module includes a diode D107 and a diode D108 connected in series, an anode of the diode D107 is connected to an external power supply, and a cathode of the diode D108 is connected to the VIN port of the chip U100 and the power input terminal of the communication module.

In some embodiments, the communication module is a 4G/5G wireless transmission module.

In some embodiments, the communication module includes a 4G wireless transmission module U101 with model YH8500-4G/LTE, the RXD pin of the 4G wireless transmission module U101 is connected to the PA9 pin of the chip U102, and the TXD pin of the 4G wireless transmission module U101 is connected to the PA10 pin of the chip U102.

The beneficial effects of the utility model are that, through the power down information that falls that signal output module acquireed external power source, but fall the power maintenance module seamless switching power in real time, and can maintain equipment normal work, control module passes through communication module and in time reports alarm information, accomplishes configuration parameter and data storage simultaneously, avoids falling the information that the power down leads to suddenly and loses and the hardware damages, guarantees RTU's stability, is favorable to improving management department's equipment management, improve equipment maintenance's promptness.

In addition, in the technical solutions of the present invention, the technical solutions can be implemented by adopting conventional means in the art, which are not specifically described.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an RTU power down remote alarm system according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of an RTU power down remote alarm system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of but not limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example (b):

referring to the attached fig. 1 and the attached fig. 2 of the specification, an RTU power down remote alarm system provided by an embodiment of the present invention is shown, which comprises a control module 1, an LDO power supply module 2, a power down signal output module 3, a communication module 4 and a power down maintaining module 5,

the control module 1 is respectively connected with the output end of the LDO power supply module 2 and the output end of the power failure signal output module 3;

the output end of the power failure maintaining module 5 is connected with the input end of the LDO power supply module 2, and the input end of the power failure maintaining module 5 is connected with the output end of the power failure signal output module 3;

the communication module 4 is in communication connection with the control module 1, and a power input end of the communication module 4 is connected with an output end of the power failure maintaining module 5.

In an alternative embodiment, control module 1 is chip U102 of model STM32L431RCT 6.

In an alternative embodiment, the LDO power supply module 2 includes a chip U100 with a model number XC6206P332, and a VOUT pin of the chip U100 is connected to a power input terminal of the control module 1, that is, a VCC pin of the chip U102, to supply power to the chip U102; the VIN pin of the chip U100 is connected to the output terminal of the power-down maintaining module 5.

In an alternative embodiment, the power-down signal output module 3 includes a chip U103 of a model LM809M3-4.38, an RST pin of the chip U103 is connected to the signal input terminal of the power-down maintaining module 5 and a PA0 pin of the chip U102, respectively, and a VCC pin of the chip U103 is connected to an external power supply.

In an alternative embodiment, the power-down maintaining module 5 includes a super capacitor BT100, a capacitor charging unit and a capacitor power supply unit, the capacitor charging unit includes a resistor R108 and a diode D106 connected in series, an anode of the diode D106 is connected to an external power supply, a cathode of the diode D106 is connected to the resistor R108, and the resistor R108 is connected to the super capacitor BT 100; the capacitor power supply unit comprises a field effect transistor Q100 and a diode D109, a grid electrode of the field effect transistor Q100 is used as a signal input end of the power failure maintaining module 5 and is connected with a RST pin of the chip U103, a source electrode of the field effect transistor Q100 is connected with the super capacitor BT100, a drain electrode of the field effect transistor Q100 is connected with an anode of the diode D109, and a cathode of the diode D109 is respectively connected with a VIN port of the chip U100 and a power supply input end of the communication module 4.

Specifically, the super capacitor BT100 can adopt a super capacitor with the model number SP-5R5-Z505VYL 10.

Specifically, the fet Q100 may be a fet model CJ 3407.

Specifically, the resistor R108 may be a power resistor of 5R-5W.

In an optional embodiment, the communication module further comprises an external power supply module, the external power supply module comprises a diode D107 and a diode D108 which are connected in series, an anode of the diode D107 is connected with an external power supply, and a cathode of the diode D108 is connected with the VIN port of the chip U100 and the power input end of the communication module 4.

In an alternative embodiment, the cathode of the diode D108 is further connected to the anode of the filter capacitor C106, and the cathode of the filter capacitor C106 is grounded.

Specifically, the filter capacitor C106 may be a tantalum capacitor of 220 uf/6.3V.

In an alternative embodiment, the communication module 4 is a 4G or 5G wireless transmission module.

In an alternative embodiment, the communication module 4 includes a 4G wireless transmission module U101 with model YH8500-4G/LTE, the RXD pin of the 4G wireless transmission module U101 is connected to the PA9 pin of the chip U102, and the TXD pin of the 4G wireless transmission module U101 is connected to the PA10 pin of the chip U102.

Specifically, the diode D106, the diode D107, the diode D108, and the diode D109 are schottky diodes of type 1N 5819.

In an alternative embodiment, the PA0 pin of chip U102 is connected to the RST pin of chip U103 through resistor R219.

In an alternative embodiment, the RST pin and the GND pin of the chip U103 are connected via a resistor R267.

Specifically, the resistors R219 and R267 may each adopt a patch resistor of 10K Ω.

In an alternative embodiment, the external power source may be a 4.6V DC voltage, and may be specifically connected to an input terminal of the AC-DC power adapter through the mains power, and output from an output terminal of the AC-DC power adapter. The external power supply is connected to the VCC pin of the chip U103, the anode of the diode D106, and the anode of the diode D107, respectively.

When the RTU works normally, one path of 4.6V direct current voltage connected with a VCC pin of the chip U103 supplies power to the chip U103; one path of 4.6V direct current voltage connected with the anode of the diode D106 is reduced to 4.4V and then is charged into the super capacitor BT 100; one path of 4.6V direct current voltage connected with the anode of the diode D107 is reduced to 4.2V through the voltage reduction of the diode D107 and the diode D108, and the voltage reduction is used for supplying power to the chip U100 and the chip U101 respectively. Chip U100 converts the input voltage of 4.2V to an output voltage of 3.3V, which powers chip U102. When the RTU works normally, the RST pin of the chip U103 outputs high level, at the moment, the field effect transistor Q100 is disconnected, and the super capacitor BT100 does not discharge outwards.

The utility model discloses the during operation, when the AC-DC power adapter falls the electricity suddenly, 4.6V's output voltage disappears, fall the RST pin output low level of power signal output module 3's chip U103, make fall the power and maintain the field effect transistor Q100 of module 5 and switch on, super capacitor BT100 discharges, step down 4.2V through diode D109 and give communication module 4 and the 2 power supplies of LDO power module, LDO power module 2 gives control module 1 power supply, and simultaneously, PA0 pin of control module 1's chip U102 detects the RST pin output low level of power signal output module 3's chip U103, upload through communication module 4 and fall the electricity warning message to the platform and accomplish rapidly the save of configuration parameter and data, each elementary circuit of system is closed again safely, guarantee RTU's stability ability.

The utility model has the advantages that: the power failure information of the external power supply is acquired through the power failure signal output module, the power failure maintaining module can seamlessly switch the power supply in real time and can maintain normal work of equipment, the control module timely reports alarm information through the communication module and simultaneously completes configuration parameters and data storage, information loss and hardware damage caused by sudden power failure are avoided, the stability of the RTU is guaranteed, improvement of equipment management of management departments is facilitated, and timeliness of equipment maintenance is improved.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

An RTU power failure remote alarm system is characterized by comprising a control module (1), an LDO power supply module (2), a power failure signal output module (3), a communication module (4) and a power failure maintaining module (5),

the control module (1) is respectively connected with the output end of the LDO power supply module (2) and the output end of the power failure signal output module (3);

the output end of the power failure maintaining module (5) is connected with the input end of the LDO power supply module (2), and the input end of the power failure maintaining module (5) is connected with the output end of the power failure signal output module (3);

the communication module (4) is in communication connection with the control module (1), and the power input end of the communication module (4) is connected with the output end of the power failure maintaining module (5).
2. The RTU power down remote alarm system of claim 1, wherein the control module (1) is a chip U102 of model STM32L431RCT 6.
3. The RTU power down remote alarm system of claim 2, wherein the LDO power supply module (2) comprises a chip U100 of model XC6206P332, a VOUT pin of the chip U100 being connected to a power input of the control module (1), a VIN pin of the chip U100 being connected to an output of the power down maintenance module (5).
4. The RTU power-down remote alarm system according to claim 3, wherein the power-down signal output module (3) comprises a chip U103 with model LM809M3-4.38, RST pin of the chip U103 is connected to the signal input terminal of the power-down maintaining module (5) and PA0 pin of the chip U102 respectively, and VCC pin of the chip U103 is connected to an external power supply.
5. The RTU power-down remote alarm system according to claim 4, wherein the power-down maintaining module (5) comprises a super capacitor BT100, a capacitor charging unit and a capacitor power supply unit, wherein the capacitor charging unit comprises a resistor R108 and a diode D106 which are connected in series, the anode of the diode D106 is connected with an external power supply, the cathode of the diode D106 is connected with the resistor R108, and the resistor R108 is connected with the super capacitor BT 100; the capacitor power supply unit comprises a field effect transistor Q100 and a diode D109, the grid electrode of the field effect transistor Q100 is used as the signal input end of the power failure maintaining module (5) and is connected with the RST pin of the chip U103, the source electrode of the field effect transistor Q100 is connected with the super capacitor BT100, the drain electrode of the field effect transistor Q100 is connected with the anode of the diode D109, and the cathode of the diode D109 is respectively connected with the VIN port of the chip U100 and the power supply input end of the communication module (4).
6. The RTU power failure remote alarm system of claim 5, further comprising an external power supply module, wherein the external power supply module comprises a diode D107 and a diode D108 which are connected in series, the anode of the diode D107 is connected with an external power supply, and the cathode of the diode D108 is connected with the VIN port of the chip U100 and the power input end of the communication module (4).
7. The RTU power down remote alarm system of claim 2, wherein the communication module (4) is a 4G/5G wireless transmission module.
8. The RTU power down remote alarm system of claim 7, wherein the communication module (4) comprises a 4G wireless transmission module U101 with model YH8500-4G/LTE, the RXD pin of the 4G wireless transmission module U101 is connected with the PA9 pin of the chip U102, and the TXD pin of the 4G wireless transmission module U101 is connected with the PA10 pin of the chip U102.