CN114189037A - Power supply circuit for unattended track detection platform - Google Patents
Power supply circuit for unattended track detection platform Download PDFInfo
- Publication number
- CN114189037A CN114189037A CN202111271309.0A CN202111271309A CN114189037A CN 114189037 A CN114189037 A CN 114189037A CN 202111271309 A CN202111271309 A CN 202111271309A CN 114189037 A CN114189037 A CN 114189037A
- Authority
- CN
- China
- Prior art keywords
- mosfet
- power supply
- power
- output
- circuit
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
-
- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
- H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a power supply circuit for an unattended track detection platform, wherein the output of external input power supply voltage converted by a second power supply module is connected to the output end of a positive high-voltage diode controller, and a standby battery is electrically connected to the input end of the positive high-voltage diode controller. The grid electrodes of the first MOSFET and the second MOSFET are connected with the control end of the positive high-voltage diode controller, the source electrode is connected with the input end of the positive high-voltage diode controller, and the drain electrode is connected with the output end of the high-voltage diode controller. When external voltage is output, the grid voltage of the first MOSFET and the grid voltage of the second MOSFET are reduced to 0V through the positive high-voltage diode controller, the first MOSFET and the second MOSFET are closed, isolation between the standby battery and a load bus is achieved, and an external power supply supplies power to the control circuit for output; when no external voltage is output, the first MOSFET tube and the second MOSFET tube are conducted, and the battery supplies power to the control circuit. The invention realizes the automatic power on and off control of the power circuit.
Description
Technical Field
The invention belongs to the technical field of power supply circuits, and particularly relates to a power supply circuit for an unattended track detection platform.
The intelligent achievement relates to a technical scheme for unattended detection in development of a track circuit state detection system, the scheme can realize remote and autonomous power on and off control of a power circuit, the requirement of sequential electrification of an external sensor is met, after external power supply is cut off, power is switched to an internal standby battery for supplying power, the standby battery is charged after external power supply is electrified, uninterrupted unattended operation of the track circuit state detection system is realized, and the intelligent achievement belongs to the technical method class.
Background
Since the 70 s of the 20 th century, developed countries such as europe and the united states successively researched and developed comprehensive detection systems installed on large detection vehicles, and abundant research experiences were accumulated. In recent years, a comprehensive detection system for a track line developed in China is gradually applied to operation trains such as subways and high-speed rails and the like because large-scale track inspection vehicles are expensive in manufacturing cost. With the development of computer technology and detection technology, the requirements for measurement accuracy, environmental adaptability, high efficiency, low cost and the like of the rail detection technology are also improved. Therefore, the development of a track detection system which has diversified detection capability, can adapt to multi-platform application, has high intelligent level and can realize functions of unattended operation, intelligent alarm and the like is imperative. The traditional power supply mode of the track detection platform adopts a switch or a connector to directly power on; when the external power supply of the train is disconnected, the comprehensive detection system needs to be powered off and replaced by battery power supply, manual intervention is needed, manpower is consumed, efficiency is low, and the comprehensive detection system is not suitable for the requirement of train track detection of high-speed development.
Disclosure of Invention
The invention aims to provide a power supply circuit for an unattended track detection platform, which realizes the autonomous power on and power off control of the power supply circuit.
In order to solve the technical problems, the invention adopts the following technical scheme:
the power supply circuit for the unattended track detection platform comprises a power supply switching circuit, wherein the power supply switching circuit comprises a positive high-voltage diode controller U1, a second power supply module U2, a first MOSFET Q1 and a second MOSFET Q2.
The output of the external input power voltage converted by the second power module U2 is connected to the output end of the positive high voltage diode controller U1, the battery is connected to the input end of the high voltage diode controller U1, the grids of the first MOSFET Q1 and the second MOSFET Q2 are connected to the control end of the positive high voltage diode controller U1, the source is connected to the input end of the positive high voltage diode controller U1, and the drain is connected to the output end of the high voltage diode controller U1.
When external voltage is output, the grid voltage of the first MOSFET Q1 and the grid voltage of the second MOSFET Q2 are reduced to 0V through the first power supply module, the first MOSFET Q1 and the second MOSFET Q2 are closed, isolation between a battery and a load bus is achieved, and an external power supply supplies power to the control circuit for output; when no external voltage is output, the first MOSFET tube Q1 and the second MOSFET tube Q2 are conducted, and the battery supplies power to the control circuit.
Furthermore, the control circuit comprises a main control circuit, a 4G module and a relay K1, the power output is divided into two paths, one path is directly output, and the power is provided for the main control circuit and the 4G module; and the other path controls the relay K1 to supply power to an external sensor.
Furthermore, the embedded software automatically runs after the main control circuit is powered on, a starting instruction is automatically sent, or the relay K1 is controlled to act through a 4G and wifi wireless network, and the relay is closed to supply power for the external sensor.
And further, the device also comprises a battery charging circuit, and after the external input power supply is electrified, the battery charging circuit converts the external input power supply and then charges the standby battery.
Compared with the prior art, the invention has the following beneficial effects:
the power supply circuit for the unattended track detection platform can realize automatic and stable switching from one power supply to another power supply, when an external power supply is input, the battery has no output, and the battery can be charged in real time; when the external input is disconnected, the battery is switched to supply power, and the detection of uninterrupted power supply is ensured. The invention can realize the unattended operation of the power supply circuit by the remote control of the main control circuit, and has the characteristics of simple design and convenient operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a block diagram illustrating a power circuit for a track inspection platform according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power switching circuit provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a battery charging circuit layout provided in accordance with an exemplary embodiment of the present invention;
fig. 4 shows a control circuit layout provided in accordance with a specific embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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 invention.
As an embodiment of the invention, the power circuit for the track detection platform is powered by an external power source (the voltage range is 18V-75V) or a standby battery. The power supply circuit comprises a battery charging circuit, a power supply switching circuit, a control circuit and the like, and a circuit composition block diagram is shown in fig. 1.
As shown in fig. 2, the power switching circuit includes a positive high voltage diode controller U1, a MOSFET Q1, a MOSFET Q2. Q1, Q2 are actuators for the positive high voltage diode controller to regulate and stabilize the power supply output voltage.
The external input power voltage (in this embodiment, 18-75V dc power) is converted into 36V output by the power module U2, the positive electrode is connected to pin 8 (OUT) of U1, the battery supply voltage is 24V, the positive electrode is connected to pin 1 (Vin) of U1, the gates of Q1 and Q2 are connected to the control end (Gate) of the positive high voltage diode controller U1, the source is connected to the input end of U1, and the drain is connected to the output end of U1. The resistor R1, the capacitor C1 and the diode D1 are an RC absorption circuit formed by connecting the MOSFET in parallel and are connected with the grid electrode and the drain electrode.
When external voltage is output, the grid voltage of Q1 and Q2 is reduced to 0V through a positive high-voltage diode controller U1, the MOSFET is closed, the isolation of a battery and a load bus is realized, and an external power supply supplies power to the control circuit for output; when the external voltage is not output, the forward voltage is larger than zero, and the Q1 and the Q2 are conducted, so that the battery supplies power to the control circuit.
Preferably, the MOSFET Q1 and the MOSFET Q2 are N-channel MOSFETs. The power consumption is reduced by adopting an N-channel MOSFET to replace a power Schottky diode, and the N-channel MOSFET is used for controlling the forward voltage drop at two ends of the MOSFET so as to ensure that smooth current transfer from external input to battery output does not have oscillation phenomenon and realize smooth switching of a power supply.
The power supply switching circuit is designed to realize seamless switching between external power supply and the standby battery, the output of the standby battery is always greater than that of the standby battery by converting external input voltage into 36V output, and the standby battery has no output as long as external input exists. And once no external input exists, the standby battery is normally powered, so that the current is prevented from flowing backwards.
Test software in the lower computer automatically runs after being electrified, external sensors such as inertial navigation, a speedometer and a laser range finder are sequentially started, autonomous and uninterrupted detection of the track line state is realized along with the starting of an operation train, and a standby battery is charged during the detection. As shown in fig. 3, the battery charging circuit includes a secondary power module U3 that converts the external power supply charging voltage to 24V, maximum current 2A, via a secondary power module U3 to meet the selected battery charging requirements.
As shown in fig. 4, the control circuit includes power modules U4-U7, a main control circuit board, a 4G module, and a relay K1. The control circuit divides the power output into two parts, one part is directly output to provide power for a main control circuit and a 4G module in the control circuit, and the system is ensured to be in a standby state; the other path supplies power to the relay through the IO port of the main control circuit, so that the sensor is controlled to supply power, and when the sensor is unattended, the relay is remotely controlled through WIFI or 4G to supply power, and intelligent control is achieved.
The U4 provides the power of master control circuit board and 4G module, and embedded software automatic operation after the master control circuit board is electrified, sends the start instruction through GPIO automation, perhaps through wireless network control relay K1 action such as 4G and wifi, K1 chooses to be precious JGX-5295M type sealed direct current solid state relay of relay factory, and output current reaches 10A, and output voltage can reach 60V at most, satisfies the operation requirement. When the relay is closed, the power supply voltages of 12V, 24V, 5V and the like are respectively output through the U5, the U6 and the U7, power is supplied to external sensors such as an inertial navigation meter, a speedometer and a laser range finder, the external sensors are started, and the autonomous and uninterrupted detection of the track line state is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A power circuit for an unattended track inspection platform is characterized in that the power circuit comprises a power switching circuit, the power switching circuit comprises a positive high voltage diode controller U1, a second power module U2, a first MOSFET Q1 and a second MOSFET Q2,
the output of the external input power voltage converted by the second power module U2 is connected to the output terminal of the positive high voltage diode controller U1, the spare battery is electrically connected to the input terminal of the positive high voltage diode controller U1, the gates of the first MOSFET Q1 and the second MOSFET Q2 are connected to the control terminal of the positive high voltage diode controller U1, the source is connected to the input terminal of the positive high voltage diode controller U1, and the drain is connected to the output terminal of the high voltage diode controller U1;
when external voltage is output, the grid voltage of the first MOSFET tube Q1 and the grid voltage of the second MOSFET tube Q2 are reduced to 0V through the first power supply module U1, the first MOSFET tube Q1 and the second MOSFET tube Q2 are closed, isolation between a standby battery and a load bus is achieved, and an external power supply supplies power to the control circuit for output; when no external voltage is output, the first MOSFET tube Q1 and the second MOSFET tube Q2 are conducted, and the standby battery supplies power to the control circuit.
2. The power supply circuit for the unattended operation track detection platform according to claim 1, wherein the control circuit comprises a main control circuit, a 4G module and a relay K1, the power supply output is divided into two paths, one path is directly output, and the power supply is provided for the main control circuit and the 4G module; and the other path controls the relay K1 to supply power to an external sensor.
3. The power supply circuit for the unattended track detection platform according to claim 2, wherein the embedded software automatically runs after the main control circuit is powered on, a starting instruction is automatically sent, or a relay K1 is controlled to act through a 4G and wifi wireless network, and the relay is closed to supply power to the external sensor.
4. The power supply circuit for the unattended track inspection platform according to claim 1, wherein the first MOSFET Q1 and the second MOSFET Q2 are N-channel MOSFETs.
5. The power supply circuit for the unattended track detection platform according to claim 1, further comprising a battery charging circuit, wherein after the external input power supply is powered on, the battery charging circuit converts the external input power supply and then charges the standby battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271309.0A CN114189037B (en) | 2021-10-29 | 2021-10-29 | Power supply circuit for unmanned on duty track testing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111271309.0A CN114189037B (en) | 2021-10-29 | 2021-10-29 | Power supply circuit for unmanned on duty track testing platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114189037A true CN114189037A (en) | 2022-03-15 |
| CN114189037B CN114189037B (en) | 2024-06-11 |
Family
ID=80540499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111271309.0A Active CN114189037B (en) | 2021-10-29 | 2021-10-29 | Power supply circuit for unmanned on duty track testing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114189037B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054322A (en) * | 2022-05-25 | 2022-09-16 | 安速康医疗(苏州)有限公司 | Dual-mode power supply circuit, energy instrument for operation and ultrasonic operation system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621569A (en) * | 2009-07-24 | 2010-01-06 | 上海华勤通讯技术有限公司 | Uninterruptedly powered handset and use method |
| CN103545914A (en) * | 2013-10-31 | 2014-01-29 | 中国兵器工业集团第二一四研究所苏州研发中心 | Dual-path electricity supply circuit with automatic switching function |
| CN205583664U (en) * | 2016-05-05 | 2016-09-14 | 安徽江淮汽车股份有限公司 | Battery package overflow control circuit |
| CN205726598U (en) * | 2016-04-27 | 2016-11-23 | 北京航天光华电子技术有限公司 | Street lamp control system |
| CN206057496U (en) * | 2016-10-08 | 2017-03-29 | 莆田学院 | A kind of insulator contamination on-line monitoring system |
| CN107733071A (en) * | 2017-10-12 | 2018-02-23 | 杭州春来科技有限公司 | Dual power supply control circuit and its control method in particulate matter on-line monitoring system |
| CN108092395A (en) * | 2017-11-22 | 2018-05-29 | 深圳市科卫泰实业发展有限公司 | A kind of backup battery incision and floating charge control device |
| CN210837967U (en) * | 2019-10-22 | 2020-06-23 | 中北大学 | All-vanadium redox flow battery management system based on embedded chip |
| CN211207453U (en) * | 2019-12-19 | 2020-08-07 | 太原昂迈威电子科技有限公司 | Intelligent comprehensive safety monitoring node equipment for laboratory |
| CN111606259A (en) * | 2020-04-26 | 2020-09-01 | 国家电投集团宁夏能源铝业科技工程有限公司 | Wind power tower cylinder exempts from to climb ware safety inspection device that marchs |
| CN211669562U (en) * | 2020-04-23 | 2020-10-13 | 中电***建设工程有限公司 | Underground comprehensive pipe gallery environment monitoring controller |
| CN212045268U (en) * | 2020-03-20 | 2020-12-01 | 浙江智握领程科技股份有限公司 | Precast beam sprays curing means and system |
-
2021
- 2021-10-29 CN CN202111271309.0A patent/CN114189037B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621569A (en) * | 2009-07-24 | 2010-01-06 | 上海华勤通讯技术有限公司 | Uninterruptedly powered handset and use method |
| CN103545914A (en) * | 2013-10-31 | 2014-01-29 | 中国兵器工业集团第二一四研究所苏州研发中心 | Dual-path electricity supply circuit with automatic switching function |
| CN205726598U (en) * | 2016-04-27 | 2016-11-23 | 北京航天光华电子技术有限公司 | Street lamp control system |
| CN205583664U (en) * | 2016-05-05 | 2016-09-14 | 安徽江淮汽车股份有限公司 | Battery package overflow control circuit |
| CN206057496U (en) * | 2016-10-08 | 2017-03-29 | 莆田学院 | A kind of insulator contamination on-line monitoring system |
| CN107733071A (en) * | 2017-10-12 | 2018-02-23 | 杭州春来科技有限公司 | Dual power supply control circuit and its control method in particulate matter on-line monitoring system |
| CN108092395A (en) * | 2017-11-22 | 2018-05-29 | 深圳市科卫泰实业发展有限公司 | A kind of backup battery incision and floating charge control device |
| CN210837967U (en) * | 2019-10-22 | 2020-06-23 | 中北大学 | All-vanadium redox flow battery management system based on embedded chip |
| CN211207453U (en) * | 2019-12-19 | 2020-08-07 | 太原昂迈威电子科技有限公司 | Intelligent comprehensive safety monitoring node equipment for laboratory |
| CN212045268U (en) * | 2020-03-20 | 2020-12-01 | 浙江智握领程科技股份有限公司 | Precast beam sprays curing means and system |
| CN211669562U (en) * | 2020-04-23 | 2020-10-13 | 中电***建设工程有限公司 | Underground comprehensive pipe gallery environment monitoring controller |
| CN111606259A (en) * | 2020-04-26 | 2020-09-01 | 国家电投集团宁夏能源铝业科技工程有限公司 | Wind power tower cylinder exempts from to climb ware safety inspection device that marchs |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054322A (en) * | 2022-05-25 | 2022-09-16 | 安速康医疗(苏州)有限公司 | Dual-mode power supply circuit, energy instrument for operation and ultrasonic operation system |
| CN115054322B (en) * | 2022-05-25 | 2024-05-17 | 安速康医疗(苏州)有限公司 | Dual-mode power supply circuit, surgical energy instrument and ultrasonic surgical system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114189037B (en) | 2024-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102770970B (en) | System for managing and controlling photovoltaic panels | |
| CN205405129U (en) | Remote wakening system for vehicle control unit | |
| CN203456897U (en) | Power supply switching circuit of handheld terminal and handheld terminal thereof | |
| CN202712965U (en) | Intelligentization energy-saving system capable of automatic switches between AC (alternating current) power supply and battery | |
| CN103248115B (en) | Power supply system for transformer substation inspection robot and charging method of power supply system | |
| CN102694414B (en) | Gapless automatic switching device for intelligent dual direct-current power supply | |
| CN111469709A (en) | Vehicle, power battery monitoring device and DC/DC module awakening method | |
| CN114189037A (en) | Power supply circuit for unattended track detection platform | |
| CN110601315A (en) | Power supply system and method of high-voltage cable core temperature measurement system | |
| CN103117649B (en) | A kind of start-up circuit control method of zero-power and device | |
| CN102082454B (en) | Based-battery power supply unit and power supply control method | |
| CN109435877B (en) | Control system for preventing and controlling failure of negative mechanical type main power switch for electric passenger car | |
| CN201514561U (en) | Logic control device used for urban rail vehicles | |
| CN104901406A (en) | Blood collecting vehicle power supply system and blood collecting vehicle with system | |
| CN204794309U (en) | Blood -collecting car power supply system and use blood -collecting car of this system | |
| CN114290900A (en) | BMS system power supply unit and electric automobile | |
| CN207984603U (en) | A kind of main control module of battery management system | |
| CN105958629A (en) | BMS power supply device and power supply method for electric automobile | |
| CN205791766U (en) | The BMS electric supply installation of electric automobile | |
| CN112165176B (en) | Two-way three-stage energy storage power supply module | |
| CN115503637A (en) | Power supply management circuit of vehicle-mounted RTC | |
| CN210723272U (en) | Battery manager for preventing electric vehicle battery power consumption | |
| CN209472554U (en) | Photovoltaic power generation and the bidirectional power converters of energy storage | |
| CN203063869U (en) | Vehicle-mounted multi-power-source management system | |
| CN106494259A (en) | Modularity AGV intelligent navigation vehicle control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |